Interim Report of the

**National Type Evaluation Program (NTEP) Committee**

Ross Andersen

Director

New York Bureau of Weights and Measures

# Introduction

The National Type Evaluation Program (NTEP) Committee (hereinafter
referred to as \"Committee\") submits its Interim Report for
consideration by the National Conference on Weights and Measures (NCWM).
This report contains the items discussed and actions proposed by the
Committee during its Interim Meeting in Bethesda, Maryland, January 25 -
28, 2004.

Table A identifies the agenda items in the Report by Reference Key
Number, Item Title, and Page Number. The item numbers are those assigned
in the Interim Meeting Agenda. A voting item is indicated with a **"V"**
after the item number. An item marked with an **"I"** after the
reference key number is an information item. An item marked with a
**"D"** after the reference key number is a developing issue. The
developing designation indicates an item has merit; however, the item
was returned to the submitter for further development before any action
can be taken at the national level. An item marked with a **"W"** was
withdrawn by the Committee and generally will be referred to the
regional weights and measures associations because it either needs
additional development, analysis, and input or does not have sufficient
Committee support to bring it before the NCWM.

This Report contains many recommendations to revise or amend National
Conference on Weights and Measures (NCWM) Publication 14, Administrative
Procedures, Technical Policy, Checklists, and Test Procedures or other
documents. Proposed revisions to the publication(s) are shown in **bold
face print** by **~~striking out~~** information to be deleted, and
**[underlining]{.underline}** information to be added. Requirements that
are proposed to be nonretroactive are printed in *italics**.***

**Note:** The policy of NIST is to use metric units of measurement in
all of its publications; however, recommendations received by the NCWM
technical committees have been printed in this publication as they were
submitted and may, therefore, contain references to inch-pound units.

**Table A**

## Index to Reference Key Items

**Reference**

**Key Number Title of Item Page**

[Introduction 1](#introduction)

[1. International Organization of Legal Metrology (OIML) Certificate
Project
3](#international-organization-of-legal-metrology-oiml-certificate-project)

[2. Test Data Exchange Agreements 3](#test-data-exchange-agreements)

[3. Adoption of Uniform Regulation for National Type Evaluation by
States
3](#adoption-of-uniform-regulation-for-national-type-evaluation-by-states)

[4. NTEP Participating Laboratories and Evaluations Reports
4](#ntep-participating-laboratories-and-evaluations-reports)

[5. NTETC Sectors Reports 4](#ntetc-sectors-reports)

[6. NTEP Participation in US National Working Group on Harmonization of
NIST HB 44, NCWM Publication\
14 and OIML R76 and R60.
5](#ntep-participation-in-us-national-working-group-on-harmonization-of-nist-hb-44-ncwm-publication-14-and-oiml-r76-and-r60.)

[7. Mix and Match Elements 5](#mix-and-match-elements)

[8. NCWM Publication 14, Administrative Policy on Pre-NTEP Certificates
of Conformance
5](#ncwm-publication-14-administrative-policy-on-pre-ntep-certificates-of-conformance)

[9. Consolidating NTEP Device Types 6](#consolidating-ntep-device-types)

[10. NTEP Laboratory Round Robin 6](#ntep-laboratory-round-robin)

[11. NTEP Technical Advisor 6](#ntep-technical-advisor)

######### Table B

**Appendices**

**Appendix Title Page**

[A NTEP Participating Laboratories and Evaluations Report
A1](#appendix-a)

[B GMM and NIR Grain Analyzer Sectors B1](#AppendixB)

[C NTETC Measuring Sector Annual Meeting Summary C1](#appendix-c)

[D NTETC Weighing Sector Annual Meeting Summary D1](#AppendixD)

[E NTEP Committee Hearings E1](#appendix-e)

# 1. International Organization of Legal Metrology (OIML) Certificate Project 

**Background:** This item is included on the Committee's agenda to
provide an update on NTEP's work to issue OIML R 60**,** "Metrological
Regulation for Load Cells" and R 76, "Non-Automatic Weighing
Instruments" Certificates.

***OIML Certificate System:*** No new OIML Certificates have been issued
by NTEP. The Committee agreed to withdraw this item, preferring to
consider the issue in the future as part of the Test Data Exchange
Arrangements.

# 2. Test Data Exchange Agreements

**Background/Discussion:** This item was included on the Committee's
agenda in 1998 to provide an update on NTEP's work to establish
bilateral and multilateral agreements. Under such agreements and
arrangements, manufacturers would be able to submit their equipment to
any of the participating countries for testing to OIML‑recommended
requirements. The resulting test data would be accepted by other
participants, as a basis for issuing each country's own type approval
certificate.

***Mutual Acceptance Arrangement (MAA):*** The OIML MAA document was
adopted at the recent International Committee on Legal Metrology (CIML)
meeting in Kyoto, Japan, in November 2003. Dr. Charles Ehrlich from the
NIST Weights and Measures Division provided the NTEP Committee an update
on the latest developments with the MAA. Refer to Appendix C of the
Board of Directors report for additional information.

***Bilateral Agreements:*** No additional discussions have been held on
this topic, pending the outcome of the MAA discussions.

***NTEP-Canada Mutual Recognition Program***: The NTEP Labs will meet
with Measurement Canada during the April 2004 Lab meeting to review and
finalize the updated checklist for Weighing Devices.

**Additional related items**

***Participation in International Standards:*** Ross Andersen presented
a PowerPoint presentation describing the current activity of NTEP and
NCWM in International Standards. He gave an update on the participation
at the recent US National Working Group R76/R60 meeting sponsored by
NIST. Mr. Andersen also asked several questions for the group to
consider. These included: What are the obligations of NCWM regarding
harmonization of standards? What makes harmonization so difficult? He
then proceeded to provide a possible method to make harmonization
happen. There were also a series of questions regarding the specific
actions that may be needed to actually participate in the MAA. Mr.
Andersen left the group to ponder the question: Is the ability to issue
OIML Certificates under the MAA a \"Core Value\" to the U.S.?

***Report on 2004 Canadian Forum on Trade Measurement:*** Gilles Vinet
provided an overview of the approach that Canada has chosen to pursue to
improve their level of service to all of their stakeholders in Canada.

***Report on the Asia Pacific Legal Metrology Forum (APLMF) and CIML
Meeting:*** The group was given an update on the activities of attendees
to these meetings.

# 3. Adoption of Uniform Regulation for National Type Evaluation by States

**Background/Discussion:** The Scale Manufacturers Association (SMA) has
hosted NTEP adoption and implementation meetings for state directors at
each regional weights and measures association conference. These
meetings enable jurisdictions to share information about adopting and
implementing NTEP in their respective jurisdictions, encourage non-NTEP
jurisdictions to adopt the regulation, and allow current NTEP
jurisdictions to share ideas on how to make enforcement more effective
and uniform among the States. The meetings also provide NTEP management
with information related to areas in which the operation and
implementation of the program can be improved. Several questions have
been posed at these meetings about issues associated with NTEP
interpretation or practice. Comments from 1997 to 2002 have been
summarized, without attribution, and are available for review and
download on the SMA web site at
[http://www.scalemanufacturers.org](http://www.scalemanufacturers.org/).

# 4. NTEP Participating Laboratories and Evaluations Reports

At the 2004 NCWM Interim Meeting, Stephen Patoray, NTEP Director updated
the Committee on NTEP laboratory and administrative activities since
October 1, 2003. Refer to Appendix A.

The next laboratory meeting is planned for April 25 through 28, 2004, in
Ottawa, Canada.

# 5. NTETC Sectors Reports

The Committee heard an update on the activities of the National Type
Evaluation Technical Committee (NTETC) Sectors at the 2004 NCWM Interim
Meeting.

The Committee reviewed the recommendations from the various sectors on
updates to NCWM Publication 14. The NTEP Committee accepted all of the
recommendations and instructed the NTEP staff to make the necessary
changes to NCWM Publication 14 for 2004.

The Committee also heard that an Ad Hoc procedure had been developed and
was now being used to evaluate Class II scales for a counting feature
per the recent changes made to NIST Handbook 44.

***Grain Moisture Meter and NIR Protein Analyzer Sectors:***

The next meeting of the Grain Moisture Meter and NIR Protein Analyzer
Sectors is scheduled for August 18-20, 2004, in Kansas City, MO. For
questions on the current status of Sector work or to propose items for a
future meeting, please contact the Sector Technical Advisors:

> Diane Lee Jack Barber
>
> NIST WMD J.B. Associates
>
> 100 Bureau Drive -- Stop 2600 10349 Old Indian Trail
>
> Gaithersburg, MD 20899-2600 Glenarm, IL 62536
>
> Phone: 301-975-4405 Phone: 217-483-4232
>
> Fax: 301-926-0647 Fax: 217-483-3712
>
> e-mail: <diane.lee@nist.gov> e-mail: <jbarber@cityscape.net>

***Measuring Sector:***

The next meeting of the Measuring Sector is scheduled for October 22-23,
2004, in Gulfport, MS, in conjunction with the Southern Weights and
Measures Association's Annual Meeting. For questions on the current
status of Sector work or to propose items for a future meeting, please
contact the Sector Technical Advisor:

Richard Suiter

NIST WMD

100 Bureau Drive -- Stop 2600

Gaithersburg, MD 20899-2600

Phone: 301-975-4406

Fax: 301-926-0647

e-mail: <rsuiter@nist.gov>

***Weighing Sector:***

The next Weighing Sector meeting is scheduled for August 29-31, 2004, in
Ottawa, Ontario, Canada. For questions on the current status of Sector
work or to propose items for a future meeting, please contact the Sector
Technical Advisor:

Steven Cook

NIST WMD

> 100 Bureau Drive -- Stop 2600

Gaithersburg, MD 20899-2600

Phone: 301-975-4003

Fax: 301‑926-0647

e-mail: <stevenc@nist.gov>

Electronic copies of the NTETC Sector summaries are included in
electronic versions of NCMW Publication 16 Committee Reports for the
Annual meeting. Electronic or hard copies of the NTETC Sector summaries
are available upon request from:

> NCWM Inc. or NIST WMD Technical Advisor, Steve Cook
>
> Phone: 240-632-9454 (See contact info above)
>
> Email: <ncwm@mgmtsol.com>

# 6. NTEP Participation in US National Working Group on Harmonization of NIST HB 44, NCWM Publication 14 and OIML R76 and R60.

In August 2003, Ross Andersen, NTEP Committee Chair, Steve Patoray, NTEP
Director, and other representatives from various NTEP laboratories and
States accepted an invitation from NIST to attend a US National Working
Group meeting on OIML TC9/SC1. Ross Andersen updated the committee on
the activities of the US National Working Group and progress and
recommendations made up to this point.

# 7. Mix and Match Elements

Ross Andersen provided the group with an update on this item. He
indicated that some US manufacturers had questioned him about the
possibility of using the OIML system of apportionment of errors in the
evaluation of separate main elements (OIML calls them modules). The U.S.
system applies a 0.7 fraction of the tolerance to any weighing/measuring
or indicating element. In contrast, the OIML system recognizes that
there may be more than two elements, in the system that contribute
error. The OIML allows the manufacturer to apply different fractions of
error to each element (module), from 0.3 to 0.8, provided the sum of the
squares is less than or equal to 1 for the combined system. OIML also
has specific criteria for evaluating compatibility of elements. At
present NTEP Certificates specify that the separate main elements must
be interfaced with compatible equipment but provide no guidance on how
to evaluate compatibility. It appears that this issue will become more
important over time. He advised that the US should be looking closely at
the issues involved and the changes that might be required in NIST
Handbook 44 to allow the OIML system to be used here.

# 8. NCWM Publication 14, Administrative Policy on Pre-NTEP Certificates of Conformance

**Proposal:** Amend NCWM Publication 14, Administrative Policy

The following language was proposed and discussed by the NTEP Committee
and interested parties to be included in NCWM Publication 14
Administrative Policy. Further discussion and final decisions on this
item will take place at the NCWM Annual meeting in July 2004.

**Background:** Current Policy from Section J.4. of NCWM Publication 14
Administrative Policy:

> Certificates of Conformance (CCs) issued as a result of type
> evaluation testing performed prior to the establishment of NTEP, that
> is Certificates that were originally issued as "pre-NTEP" CCs, may
> cover ranges of parameters within those included on the original
> pre-NTEP type approval certificates. The parameters covered must be
> within those allowed by the technical policy for the individual device
> type; parameters include elements such as device capacity, platform
> size, n~max~, product type, etc. Pre-NTEP CCs cannot be expanded to
> cover parameters beyond those listed on the pre-NTEP type approval
> certificates without additional testing.

Recently NTEP was asked to amend a pre-NTEP CC for a Weighing/Load
Receiving element that is used in Vehicle weighing. The original
pre-NTEP CC listed the length of this device as 70 ft. According to
current NTEP technical policy for this type of device, it is possible to
have lengths up to 150 % of the device evaluated covered by an NTEP CC.
In discussion with the CC holder, data was submitted that showed the
test that was conducted on the device. The testing was thorough and very
similar to the testing that NTEP currently conducts on these types of
devices. However, since this was a pre-NTEP CC, the administrative
policy does not allow for the parameters to be expanded. The only
alternative currently for the CC holder is to have the same 70 ft device
evaluated again by NTEP. In this case, the rigid administrative policy
did not seem fair.

Based on this information, the following proposal was presented to the
NTEP Committee for consideration.

**[Proposed Language change to NCWM Publication 14, Administrative
Policy]{.underline}**

> **J. Variations in Type Evaluation**
>
> **J.4. Expansion of Pre-NTEP Certificates of Conformance**
>
> Certificates of Conformance (CCs) issued as a result of type
> evaluation testing performed prior to the establishment of NTEP, that
> is Certificates that were originally issued as "pre-NTEP" CCs, may
> cover ranges of parameters within those included on the original
> pre-NTEP type approval certificates. The parameters covered must be
> within those allowed by the technical policy for the individual device
> type; parameters include elements such as device capacity, platform
> size, n~max~, product type, etc. Pre-NTEP CCs cannot be expanded to
> cover parameters beyond those listed on the pre-NTEP type approval
> certificates without additional testing.
>
> **[Upon written application filed with NTEP by the applicant, NTEP may
> grant exceptions to the provisions of this section when the applicant
> on such application provides evidence acceptable to NTEP that such
> exceptions are appropriate and maintain the integrity of the NTEP
> Certificate of Conformance. The decision to grant exceptions shall be
> based on information including, but not limited to, actual test data,
> test methods used, and current NTEP policy on evaluation and
> results.]{.underline}**

# 9. Consolidating NTEP Device Types

At the 2004 NCWM Interim Meeting, Stephen Patoray, NTEP Director updated
the Committee on the current status of device types. A list of suggested
device types, which were reviewed by the NTEP Labs and the Weighing
Sector, was discussed. Based on this information, the NTEP database has
been updated and improvements were also completed on the NTEP
Certificate search page on the NCWM website.

# 10. NTEP Laboratory Round Robin

A Computing Scale is currently being randomly circulated among the five
NTEP Laboratories. All of the laboratories are using the same checklist
and procedures to evaluate the device. Once all five laboratories have
evaluated the device, the final results from all five of the labs will
be anonymously compared. We currently believe there is consistency in
testing among the five labs. This round robin evaluation will add data
and substance to that belief. However, if any inconsistencies are
discovered, necessary actions will be taken by NTEP to properly address
any deficiencies.

# 11. NTEP Technical Advisor

Ross Andersen announced that the NTEP Director, will serve as the
primary Technical Advisor to the NTEP Committee for all administrative
duties and support. Steve Cook (NIST) will continue as Technical Advisor
to the NTEP Committee for technical matters.

## Appendix A

##  NTEP Participating Laboratories and Evaluations Report

  --------------------------------------- -------------------- -------------------- ------------ -----------
  **NTEP Application Statistics 10/01/01                                                         
  to 12/18/02**                                                                                  

                                          **Previous Quarter** **Current Quarter**               **Total To
                                                                                                 Date**

                                          10/1/2002-1/7/2003   10/1/2003-1/7/2004                10/1/00-
                                                                                                 1/7/2004

  Applications Processed                  63                   71                                841

  Applications Completed                  13                   13                                601

  New Certificates Issued                 62                   62                                772

  Certificates Distributed to State       67                   57                                753
  Directors                                                                                      

  Certificates Posted To Web Site         65                   65                                3303

  Active NTEP Certificates                \-                   \-                                1521

                                          **Average**                               **Median**   

  Time For NCWM To Assign An Evaluation   13                                        8            

  Time For NCWM To Review A Draft         9                                         6            
  Certificate                                                                                    

  Time For Complete Evaluation (Completed 152                                       109          
  NCWM Assignments)                                                                              
  --------------------------------------- -------------------- -------------------- ------------ -----------

> []{#AppendixB .anchor}**Appendix B**
>
> **GMM and NIR Grain Analyzer Sectors**
>
> **National Type Evaluation Technical Committee (NTETC)**
>
> **Grain Moisture Meter (GMM) Sector**
>
> **August 20-21, 2003 - Kansas City, Missouri**
>
> **Meeting Summary**
>
> **Agenda Items**

+---+------------------------------------------------------------------+
|   | 1.  United States Department of Agriculture (USDA), Grain        |
|   |     Inspection Packers and Stockyards Administration             |
|   |     (GIPSA)/National Institute of Standards and Technology       |
|   |     (NIST) Interagency Agreement Renewal                         |
+---+------------------------------------------------------------------+
|   | 2.  Update on NTEP Type Evaluation and Ongoing Calibration       |
|   |     Program (OCP) (Phase II) Testing                             |
+---+------------------------------------------------------------------+
|   | 3.  Type Evaluation and OCP Issues                               |
|   |                                                                  |
|   |     a.  Proposed Change to Publication 14 -- Phase II Bias       |
|   |         Tolerances                                               |
|   |                                                                  |
|   |     b.  Proposed Change to Publication 14 -- Moisture Range for  |
|   |         Hard White Wheat                                         |
|   |                                                                  |
|   |     c.  Correction to Grains Table in NTEP Application for Type  |
|   |         Evaluation                                               |
+---+------------------------------------------------------------------+
|   | 4.  Report on OIML IR 59 \"Moisture Meters for Cereal Grains and |
|   |     Oilseeds\"                                                   |
+---+------------------------------------------------------------------+
|   | 5.  Proposed Addition to OIML IR 59 to Address Influence of      |
|   |     External Disturbances                                        |
+---+------------------------------------------------------------------+
|   | 6.  Report on the 2003 NCWM Annual Meeting -- GMM Issues         |
+---+------------------------------------------------------------------+
|   | 7.  Proposed Changes and Additions to Publication 14 for Meters  |
|   |     with Test Weight per Bushel Capability                       |
|   |                                                                  |
|   |     a.  Additions to the "Type Evaluation Test Procedures and    |
|   |         Tolerances" Section                                      |
|   |                                                                  |
|   |     b.  Changes/Additions to the Checklist Section               |
+---+------------------------------------------------------------------+
|  | 8.  NTEP Committee Authorizes "Dual Certification"               |
+---+------------------------------------------------------------------+
|  | 9.  Proposed Changes to Publication 14 to Improve Consistency    |
|   |     between GMM and NIR Checklists                               |
+---+------------------------------------------------------------------+
|  | 10. NTETC GMM/NIR Sector Support - Response to Sector's Letter   |
|   |     to NCWM Chairman                                             |
+---+------------------------------------------------------------------+
|  | 11. Time and Place for Next Meeting                              |
+---+------------------------------------------------------------------+
|  |                                                                  |
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| r |                                                                  |
| s |                                                                  |
+---+------------------------------------------------------------------+

Number range CHAPTER

1.  **GIPSA/NIST Interagency Agreement Renewal**

The current five-year Interagency Agreement between GIPSA and NIST that
provides funding for the Grain Moisture Meter On-going Calibration
Program (OCP) will expire at the end of the Federal Government's Fiscal
Year 2004 (September 30, 2004). Renewal of the Agreement is subject to
an annual review to determine if changes should be made. Under the terms
of the present agreement NIST and GIPSA each contribute one-third the
cost of the program subject to an annual maximum of \$18,000 each. The
balance of costs is borne by manufacturers and depends on the number of
meter models in the NTEP \"pool\" according to a fee schedule. The fee
schedule has remained fixed since October 1, 1999. NIST and GIPSA have
reviewed costs associated with the program and a revised fee schedule
has been proposed. Implementation of the proposed fee schedule, which
would become effective at the start of FY2005 (October 1, 2004), is
subject to approval by both agencies. Rich Pierce, GIPSA, briefed the
Sector on the proposed fee schedule, a draft of which is shown below.

+--------+--------+--------+--------+--------+--------+---------+------+
| **Pr   |        |        |        |        |        |         |      |
| oposed |        |        |        |        |        |         |      |
| NTEP   |        |        |        |        |        |         |      |
| On     |        |        |        |        |        |         |      |
| -Going |        |        |        |        |        |         |      |
| Calib  |        |        |        |        |        |         |      |
| ration |        |        |        |        |        |         |      |
| P      |        |        |        |        |        |         |      |
| rogram |        |        |        |        |        |         |      |
| Fee    |        |        |        |        |        |         |      |
| Sche   |        |        |        |        |        |         |      |
| dule** |        |        |        |        |        |         |      |
|        |        |        |        |        |        |         |      |
| **For  |        |        |        |        |        |         |      |
| Fiscal |        |        |        |        |        |         |      |
| Year   |        |        |        |        |        |         |      |
| 2005   |        |        |        |        |        |         |      |
| to     |        |        |        |        |        |         |      |
| 2009** |        |        |        |        |        |         |      |
+--------+--------+--------+--------+--------+--------+---------+------+
| \(1\)  | \(2\)  | \(3\)  | \(4\)  | **F    |        |         |      |
|        |        |        |        | unding |        |         |      |
| Total  | Meters | Cost   | Total  | Contri |        |         |      |
| Meters | in     | per    | P      | bution |        |         |      |
|        | NTEP   | NTEP   | rogram | from   |        |         |      |
| (inc   | Pool   | Pool   | Cost   | Pa     |        |         |      |
| luding |        | Meter  |        | rticip |        |         |      |
| of     |        |        |        | ants** |        |         |      |
| ficial |        |        |        |        |        |         |      |
| meter) |        |        |        |        |        |         |      |
+--------+--------+--------+--------+--------+--------+---------+------+
|        |        |        |        | \(5\)  | \(6\)  | \(7\)   | \    |
|        |        |        |        |        |        |         | (8\) |
|        |        |        |        | NIST   | GIPSA  | Manufa  |      |
|        |        |        |        |        |        | cturers | Cost |
|        |        |        |        |        |        |         | per  |
|        |        |        |        |        |        | (total  | M    |
|        |        |        |        |        |        | funding | eter |
|        |        |        |        |        |        | from    | Type |
|        |        |        |        |        |        | mfg\'s) |      |
+--------+--------+--------+--------+--------+--------+---------+------+
| 2      | 1      | 19,875 | 19,875 | 6,625  | 6,625  | 6,625   | 3    |
|        |        |        |        |        |        |         | ,315 |
+--------+--------+--------+--------+--------+--------+---------+------+
| 3      | 2      | 19,875 | 39,750 | 13,250 | 13,250 | 13,250  | 4    |
|        |        |        |        |        |        |         | ,415 |
+--------+--------+--------+--------+--------+--------+---------+------+
| 4      | 3      | 19,875 | 59,625 | 19,875 | 19,875 | 19,875  | 4    |
|        |        |        |        |        |        |         | ,970 |
+--------+--------+--------+--------+--------+--------+---------+------+
| 5      | 4      | 19,875 | 79,500 | 26,500 | 26,500 | 26,500  | 5    |
|        |        |        |        |        |        |         | ,300 |
+--------+--------+--------+--------+--------+--------+---------+------+
| 6      | 5      | 19,875 | 99,375 | 26,500 | 26,500 | 46,375  | 7    |
|        |        |        |        |        |        |         | ,730 |
+--------+--------+--------+--------+--------+--------+---------+------+
| 7      | 6      | 19,875 | 1      | 26,500 | 26,500 | 66,250  | 9    |
|        |        |        | 19,250 |        |        |         | ,465 |
+--------+--------+--------+--------+--------+--------+---------+------+
| 8      | 7      | 19,875 | 1      | 26,500 | 26,500 | 86,125  | 10   |
|        |        |        | 39,125 |        |        |         | ,765 |
+--------+--------+--------+--------+--------+--------+---------+------+
| 9      | 8      | 19,875 | 1      | 26,500 | 26,500 | 106,000 | 11   |
|        |        |        | 59,000 |        |        |         | ,775 |
+--------+--------+--------+--------+--------+--------+---------+------+

Explanation of columns in the Fee Schedule table:

  ------------------------- ---------------------------------------------
  **Column**                **Explanation (or formula for calculating)**

  \(1\) Total Meters        The number of meter types (including the
                            Official GIPSA meter) that will share in the
                            NTEP calibration costs.

  \(2\) Meters in NTEP Pool The number of meter types other than the
                            Official meter that will share in the NTEP
                            calibration costs.

  \(3\) Cost per NTEP Pool  The cost associated with each pool meter in
  Meter                     the program.

  \(4\) Total Program Cost  A per meter type cost of \$19,875 times the
                            number of NTEP \"pool\" meters.

  \(5\) NIST Contribution   One-third the total program cost up to a
                            maximum of \$26,500.

  \(6\) GIPSA Contribution  One-third the total program cost up to a
                            maximum of \$26,500.

  \(7\) Manufacturers       Total Program Cost minus NIST Contribution
  Contributions (total      minus GIPSA Contribution.
  funding from              
  manufacturers)            

  \(8\) Cost per Meter Type Manufacturers\' Contributions divided by
                            Total Meters (including the Official meter.
  ------------------------- ---------------------------------------------

Thus, if the current number of five meter types in the program
(including the Official meter) remains constant, the annual cost per
meter type under the proposed fee schedule will be \$5,300 compared to
the present annual fee of \$3,600.

**2. Update on NTEP Type Evaluation and OCP (Phase II) Testing**

Cathy Brenner, GIPSA, the NTEP Participating Laboratory for Grain
Moisture Meters, reported that no new grain moisture meters have been
submitted for Type Evaluation in 2003. For the 2003 harvest, the
following models will be enrolled in the OCP:

\[**Note**: Models listed on a single line are considered to be of the
same \"type\".\]

DICKEY-john Corporation GAC2000, GAC2100, GAC2100a

Foss North America Infratec 1241

Foss North America Infratec 1227, Infratec 1229

Seedburo Equipment Company 1200A \[Change in ownership - formerly listed
as Motomco 919ES\]

The Steinlite Corporation SL95

Since the inception of the OCP almost 10 years ago, results for each
grain and each meter have been compiled using SAS software and returned
to manufacturers in voluminous paper reports. Rich Pierce, GIPSA,
reported that GIPSA has set a goal for next year to distribute these
reports electronically, most likely as PDF files. This change is
expected to require a number of minor changes in format, especially in
those portions of the report where several graphs now appear on a single
page.

**3. Type Evaluation and OCP Issues**

> **3.a. Proposed Change to Publication 14 -- Phase II Bias Tolerances**
>
> **Background**: The NTEP Phase I program provides for calibration
> testing and approval of three or more grain types over a 6 percent
> moisture range determined by the Sector to be the most economically
> significant for each grain. Basic 6 percent moisture ranges are
> identified in the NTEP Application for Grain Moisture Meters. At the
> completion of Phase I testing, meters are typically biased close to
> the GIPSA, and NTEP laboratory, air oven reference. In the Phase II
> OCP, calibration performance is tested over a wider range of grain
> moisture content. Calibration performance is checked against both
> \"Approved\" (one-half of the Handbook 44 Acceptance and Maintenance
> Tolerance) and \"Pending\" tolerances (\"Approved\" tolerance plus a
> 95 percent confidence interval). The \"Pending\" classification is
> used to identify the operating moisture range for each grain for field
> instruments.
>
> Proper application of \"Pending\" tolerances can prevent requiring
> calibration changes based on insufficient data. Conversely, these
> wider tolerances allow field use of calibrations that are biased as
> much as 0.4 to 0.6 percent moisture content away from the reference
> air oven and other NTEP meters. Situations currently exist where
> calibrations do not meet NTEP Approval Tolerances for a single 2
> percent moisture interval, but do meet the wider tolerances of the
> \"Pending\" classification. These calibrations are still included on
> the NTEP Certificate of Conformance and are still being used in
> commercial transactions. In these instances, the calibrations no
> longer meet the criteria for NTEP Phase I calibration approval over
> the required basic 6 percent moisture range.
>
> **Discussion:** The Sector considered a proposed change to Publication
> 14 that would require calibrations to meet Phase I tolerances (without
> the application of a confidence interval) over the basic 6 percent
> moisture range. A number of Sector members were concerned that
> different meter types were not as closely aligned as they could be. In
> the absence of a mandated change, some manufacturers haven\'t kept up
> with aligning their calibrations with the air oven.
>
> Charles Hurburgh, Jr., Iowa State University, pointed out that if
> there is a statistically significant bias between two meters and both
> meet "Approved" tolerances, then the tolerance is too broad. It was
> suggested that statistics are needed to show that meters as a cluster
> are aligned with each other in addition to aligning with the air oven.
> Rich Pierce, GIPSA, reported that even though data from the most
> recent 3 years is considered in analyzing OCP results, the confidence
> intervals have not been greatly reduced. The problem is especially
> acute in the moisture regions outside the basic 6 percent moisture
> range. With only the most recent 3 year data available, many of the 2%
> moisture intervals at the moisture extremes have an insufficient
> number of samples to support continued use at these moisture levels
> unless the manufacturer supplies supporting historical data. Any
> interval supported by manufacturer-supplied data (even if it is
> historical OCP data) is automatically classified as \"Pending\"
> approval under NTEP. In more than one instance this has caused
> previously \"Approved\" moisture ranges to be reclassified as
> \"Pending\" ranges. Steve Patoray, NTEP Director, questioned the
> intent of the first sentence of the definition of \"Pending\" which
> states, \"A new calibration will automatically be placed in this
> category.\" Sector members agreed that, as presently worded, this
> sentence confused the definition. It was intended to apply to
> calibrations that had not been validated in the OCP. It was also
> suggested that once a calibration range has been classified as
> \"Approved\" it should not be reclassified as \"Pending\" in the
> absence of data. The need to distinguish between \"Approved\" and
> \"Pending\" approval ranges was questioned. While all agreed that in
> practical day-to-day use the distinction between \"Approved\" and
> \"Pending\" had no significance, several members believed the
> distinction was important to prospective GMM buyers who could use this
> information in making informed comparisons between different GMM
> models.
>
> **Conclusion:** The Sector reached the following conclusions on the
> issues raised in connection with this agenda item:

1.  The Sector agreed to recommend the following change to Publication
    14 to require calibrations to meet Phase I tolerances over the basic
    6 percent moisture range (without the application of a confidence
    interval).

> In the GMM Checklist of Publication 14, section "IV. Tolerances For
> Calibration Performance:" revise paragraph three, and modify the
> definitions of \"Approved\" and \"Pending\" to read:
>
> In order for a calibration to remain on the certificate of
> conformance, the calibration must continue to meet "Approved"
> tolerances for all 2 percent moisture intervals in the basic 6 percent
> moisture range. This requirement is waived if a 2 percent moisture
> interval contains fewer than five samples. For 2 percent moisture
> intervals outside the basic moisture range, tolerances used to require
> a change in calibrations will include the application of a 95 percent
> confidence interval to the maximum tolerance for each 2 percent
> moisture interval. The intent of applying the confidence interval is
> to avoid forcing a calibration change based upon insufficient data.
> After only one year of data collection, the number of samples in some
> intervals will be small, and the confidence interval may be as large
> as the tolerance limit. In this instance, the calibration would have
> to be extremely poor before a calibration change would be mandated.
> After the instrument has been in the calibration program for several
> years, the confidence interval should be reduced to approximately 0.05
> and recommendations can be made with greater certainty. The latest
> three years of data will be used to make decisions regarding the need
> to make a calibration update.
>
> **Approved:** Corn, HRW wheat, and soybean calibrations will be
> approved based upon performance over the 6 percent type evaluation
> moisture range and manufacturer supplied data. Continued approval
> requires acceptable performance as part of the ongoing national
> calibration effort.
>
> Calibration data, collected as part of the national calibration
> program, must indicate that calibration performance meets the
> tolerances for each 2 percent moisture interval before additional
> grains will be approved. Continued approval again requires acceptable
> performance as part of the national calibration effort, (i.e., none of
> the average differences between predicted and reference values for the
> respective 2 percent moisture intervals exceed one-half the Handbook
> 44 acceptance tolerance within the basic 6 percent moisture range and
> one-half the Handbook 44 acceptance tolerance plus a 95 percent
> confidence interval outside the basic 6 percent moisture range).
>
> **Pending:** A new calibration that has not been validated by ongoing
> calibration data collected as part of the national calibration program
> will automatically be placed in this category. This category also
> includes calibrations that have not yet met the criteria for approval,
> but that also have not performed badly enough to be listed as not
> approved. Such calibrations may be used on NTEP-approved meters.
>
> 2\. The Sector agreed to recommend revising the first sentence of the
> definition of \"Pending\" to clarify its intent.
>
> 3\. Although first agreeing to recommend changes that, in the absence
> of data, would not cause a calibration range originally classified as
> \"Approved\" to be reclassified as \"Pending,\" the Sector
> subsequently rescinded their recommendation. Among the reasons for
> taking this action was the fact that it would not be applicable to a
> calibration that had been changed after the original approval if NTEP
> lab data were no longer available for the range in question. The
> Sector was in general agreement that ranges supported by manufacturer
> supplied data (even if it is historical OCP data) should automatically
> be classified as \"pending\" approval, because the NTEP lab had no way
> to validate the integrity of such data. Additionally, because Part V
> of the GMM checklist, which lists a set of well-developed rules for
> dealing with inadequately represented moisture intervals and for
> handling manufacturer supplied data, would require extensive revision
> if extended moisture ranges were granted permanent approval in the
> absence of data indicating otherwise, the Sector decided to defer
> action on this proposal until the issues of approval tolerances and
> uniformity among meters could be studied more thoroughly.

A subcommittee was formed to look at approval tolerances and uniformity
among meters. Dr. Charles Hurburgh, Jr., Iowa State University, agreed
to act as chair. Other subcommittee members include:

Jack Barber JB Associates

Cassie Eigenmann-Pierson DICKEY-john, Corp.

Andrew Gell Foss North America

G. Diane Lee NIST-WMD

Tom O\'Connor National Grain & Feed Association

Richard Pierce GIPSA \[NTEP Participating Laboratory\]

> **3.b. Proposed Change to Publication 14 -- Moisture Range for Hard
> White Wheat**
>
> **Discussion**: The NTEP Application for Grain Moisture Meter
> evaluation and the Table of Moisture Ranges and Tolerance for Sample
> Temperature Sensitivity in Appendix D of the GMM Checklist in
> Publication 14 specify a moisture range of 10 -- 16% for Hard White
> Wheat. The NTEP required moisture ranges were initially selected to
> represent typical market ranges. In the last 3 years, however, GIPSA
> has not received any 14 -- 16% moisture samples of Hard White Wheat
> for the Phase II ongoing calibration program. It appears that a
> moisture range of 8 -- 14% would be more appropriate for Hard White
> Wheat.
>
> **Conclusion and Recommendation:** The Sector agreed to recommend
> changing the "NTEP Required Moisture Range" for Hard White Wheat from
> "10-16%" to "8-14%" in the table on page 4 of NTEP Application form
> for Grain Moisture Meters (Issue - January 2003). The Sector also
> recommended changing the Hard White Wheat moisture range from "10-16%"
> to "8-14%" in the table in Appendix D of the GMM Checklist of
> Publication 14 as shown below. \[**Note**: Missing quotation marks
> also need to be added in the table's heading. In addition, Medium
> Grain Rough Rice with a moisture range of 10-16% and tolerance limit
> of 0.45 as approved at the Sector\'s September 1997 meeting needs to
> be added; this entry to the table was inadvertently omitted from the
> 2001 and 2002 editions of Publication 14.\]

+-----------------------+-----------------------+-----------------------+
| **Moisture Ranges and |                       |                       |
| Tolerance for Sample  |                       |                       |
| Temperature           |                       |                       |
| Sensitivity**         |                       |                       |
|                       |                       |                       |
| **(for the \"Other    |                       |                       |
| 12\" NTEP Grains)**   |                       |                       |
+-----------------------+-----------------------+-----------------------+
| **Grain Type**        | **Moisture Range for  | **Tolerance Limit**   |
|                       | Test**                |                       |
|                       |                       | **(Bias at            |
|                       |                       | Temperature           |
|                       |                       | Extremes)**           |
+-----------------------+-----------------------+-----------------------+
| Durum Wheat           | 10-16%                | 0.35                  |
+-----------------------+-----------------------+-----------------------+
| Soft White Wheat      | 10-16%                | 0.35                  |
+-----------------------+-----------------------+-----------------------+
| Hard Red Spring Wheat | 10-16%                | 0.35                  |
+-----------------------+-----------------------+-----------------------+
| Soft Red Winter Wheat | 10-16%                | 0.35                  |
+-----------------------+-----------------------+-----------------------+
| Hard White Wheat      | 8-14%                 | 0.35                  |
+-----------------------+-----------------------+-----------------------+
| Sunflower seed (Oil)  | 6-12%                 | 0.45                  |
+-----------------------+-----------------------+-----------------------+
| Grain Sorghum         | 10-16%                | 0.45                  |
+-----------------------+-----------------------+-----------------------+
| Two-rowed Barley      | 10-16%                | 0.35                  |
+-----------------------+-----------------------+-----------------------+
| Six-rowed Barley      | 10-16%                | 0.45                  |
+-----------------------+-----------------------+-----------------------+
| Oats                  | 10-16%                | 0.45                  |
+-----------------------+-----------------------+-----------------------+
| Long Grain Rough Rice | 10-16%                | 0.45                  |
+-----------------------+-----------------------+-----------------------+
| Medium Grain Rough    | 10-16%                | 0.45                  |
| Rice                  |                       |                       |
+-----------------------+-----------------------+-----------------------+

> **3.c. Editorial Correction to Grains Table in NTEP Application for
> Type Evaluation**
>
> **Discussion:** Note 2 following the Table of Grain Types on page 4 of
> the NTEP Application for Type Evaluation states:
>
> Similar grain types are grouped within double lines above; testing of
> a meter with any grain in a given grouping will enable the evaluation
> to cover all grains in the grouping. For example, successful testing
> of a meter with two-row barley will result in the issuance of a
> Certificate which lists all of the other types of grain within the
> grouping, that is six-row barley and oats.
>
> The \"double lines\" referred to in Note 2 are missing in the current
> edition of the Application.
>
> **Conclusion and Recommendation:** The Sector recommended restoring
> double lines to the Table of Grain Types on page 4 of the NTEP
> Application for Type Evaluation to separate the grain types into seven
> groups as shown below:
>
> group 1: Corn
>
> group 2: Soybeans
>
> group 3: Number range CHAPTERHard Red Winter Wheat
>
> Number range CHAPTERDurum Wheat
>
> Soft White Wheat
>
> Hard Red Spring Wheat
>
> Soft Red Winter Wheat
>
> Hard White Wheat
>
> group 4: Two-Row Barley
>
> Six-Row Barley
>
> Oats
>
> group 5: Sunflower Seed
>
> group 6: Long Grain Rough Rice
>
> Medium Grain Rough Rice
>
> group 7: Grain Sorghum or Milo

\[**Editor\'s Note:** Recent modification of Section 5.56(a) Grain
Moisture Meter Code in NIST Handbook 44 to recognize indications and
recorded representations of test weight per bushel will require
modification of Note 2 to stipulate that the groupings apply only to
testing for moisture and NOT to testing for test weight per bushel. The
Sector has not taken action on this issue, but suggested changes to Note
2 are shown below with the expectation that the change can be considered
an editorial change not requiring a formal Sector ballot.\]

Similar grain types are grouped within double lines above; testing of a
meter with any grain in a given grouping will enable the evaluation to
cover the moisture calibrations for all grains in the grouping. For
example, successful testing of a meter with two-row barley will result
in the issuance of a Certificate which lists moisture calibrations for
all of the other types of grain within the grouping, that is six-row
barley and oats, provided supporting calibration data has been provided
for six-row barley and oats.

**4. Report on OIML IR 59 \"Moisture Meters for Cereal Grains and
Oilseeds\"**

**Background**: At an OIML TC17/SC1 meeting in Berlin, Germany on June
22, 2001 the U.S. Delegation put forth a series of proposals to revise
OIML IR 59 \"Moisture Meters for Cereal Grains and Oilseeds.\"  These
proposals were well received and it was requested that the U.S. prepare
a draft based on the U.S. NTEP program.  A rough draft of this document
was reviewed at the August 2002 GMM Sector meeting.  NIST, Weights and
Measures Division (WMD) prepared a working draft, incorporating changes
suggested by the Sector, and the draft was submitted to U.S. and
International Working Groups in February 2003 for comment. NIST WMD,
which is responsible for U.S. participation and representation in the
technical activities of the OIML, compiled comments to the working draft
for review by representatives of the U.S. National Working Group
(USNWG). The working draft was modified to address comments where it was
judged appropriate. The modified working draft and a table of responses
to the comments received to the working draft were distributed to USNWG
members May 28, 2003. Subsequently, the Secretariat (the Peoples
Republic of China) distributed the revised working draft as the "First
Committee Draft" to OIML TC17/SC1 for review and comment by the member
states of the subcommittee. China has requested that any additional
comments be submitted no later than August 31, 2003. To comply with this
request, Diane Lee, WMD, asked USNWG members to submit their comments to
her by August 18, 2003. The next OIML TC17/SC1 meeting is October 15-16,
2003 in Beijing, China.

**Discussion:** Diane Lee, WMD, reported that, as of August 19, she had
not received any comments from the USNWG other than the recommendation
covered by GMM Sector Agenda item 5. Sector members who are on the USNWG
were urged to submit comments by an extended deadline of August 27 so
they could be included in her submission to the Secretariat. One Sector
member suggested removing the acidity index requirement of clause 5.4.
The acidity index is a measure of fatty acids in oil seeds. The test is
expensive and should not be necessary if care is taken to avoid using
rancid/spoiled samples. Richard Cantrill, American Oil Chemists' Society
(AOCS), noted that ISO TC-34/SC2, Oleaginous Seeds and Fruits, is
working on a revision of ISO Standard 7700-2 *Checking the performance
of moisture meters in use \-- Part 2: Moisture meters for oilseed*, and
that ISO 7700-2 makes reference to the previous version of OIML IR-59.
He suggested that the Secretariat of OIML TC71/SC1 contact the
Secretariat of ISO TC-34/SC2 to make them aware that IR-59 was being
revised. Diane Lee agreed to pass this suggestion on to the Secretariat
of OIML TC71/SC1.

**5. Proposed Addition to OIML IR 59 to Address Influence of External
Disturbances**

**Discussion:** OIML R59 (1984) includes the following requirement
without specifying the details of the tests to be performed:

**Influence of external disturbances --** Additional tests are carried
out on moisture meters containing electrical and electronic parts, to
evaluate the disturbances caused by the external magnetic fields,
electro-magnetic radiations, electrostatic discharges failures of the
electric power supply (interruptions of short duration, transient
over-voltages, etc.)

The First Committee Draft (May 2003) of OIML IR 59 includes no
requirement covering the influence of external disturbances. At present,
Grain Moisture Meters sold in the Europe must comply with the European
Union's harmonized standard EN 61326 (incorporating amendments A1: 1998
and A2: 2001), *Electrical Equipment For Measurement, Control And
Laboratory Use -- EMC Requirements,* which specifies radio frequency
emission limits as well as test requirements for immunity to external
disturbances caused by external magnetic fields, electro-magnetic
radiations, electrostatic discharges, surges, and failures of the
electric power supply (interruptions of short duration, transient
over-voltages, etc.). Including a reference to the influence tests of
IEC 61326 (the equivalent of EN 61326) and specifying what constitutes a
significant fault is suggested to correct this oversight.

**Conclusion and Recommendation:** The Sector agreed to submit
recommendations for additions to sections of R59 as shown below to
address the influence of external disturbances.

Add to the Metrological Requirements section:

> 5.9 Influence of external disturbances
>
> 5.9.1 When subjected individually to the disturbances specified in the
> immunity tests of IEC 61326 (latest revision) the meter shall not
> exhibit a significant fault as defined in 3.2.1.

Add to the Terminology section:

> 3.2.1 Significant fault
>
> A fault the magnitude of which is greater than the magnitude of the
> maximum permissible errors in 5.3.1.
>
> **NOTE**: The following faults are considered not to be significant.
>
> a\) Faults implying the impossibility to perform any measurement;
>
> b\) Transitory faults being momentary variations in the indication,
> which cannot be interpreted, recorded or transmitted as a measurement
> result; and
>
> c\) Faults giving rise to variations in the measurement results that
> are so large as to be noticed by all users of the instruments.

**6. Report on the 2003 NCWM Annual Meeting**

**Background:** Two items of interest to the GMM Sector were addressed
as voting items by the Committee on Specifications and Tolerances (S&T)
at the NCWM Annual Meeting on July 13-18, 2003.

> 356(a)-1 Recognize Indications and Recorded Representations of Test
> Weight Per Bushel
>
> **Source**: GMM Sector
>
> **Recommendation**: Modify Section 5.56(a) Grain Moisture Meter Code
> in NIST Handbook 44 to recognize indications and recorded
> representations of test weight per bushel.
>
> 356(b)-1 T.3. For Test Weight Per Bushel Indications or Recorded
> Representations
>
> **Source**: Central Weights and Measures Association (CWMA)
>
> **Recommendation**: Modify paragraph T.3. of Section 5.56(b) Grain
> Moisture Meter Code Section in NIST Handbook 44 to clarify that it
> applies to separate accessory devices (such as a beam balance test
> weight apparatus) used to determine test weight per bushel of grain
> samples for the purpose of making density corrections in moisture
> determinations.
>
> For additional background refer to Committee Reports for the 88th
> Annual Meeting, NCWM Publication 16, April 2003.

**Discussion:** At the 88^th^ NCWM Annual Meeting held July 13 -- 18,
2003 the NCWM voted to adopt changes to NIST Handbook 44 proposed under
**Agenda Item 356(a)-1** and **Agenda Item 356(b)-1**. The NIST Weights
and Measures Division recommended that the proposal, Item 356(a)-1,
include SI (metric) units of measurement. The S&T committee heard one
comment that different methods are used for test weight measurements.
The S&T committee made no decision to include the metric units and the
original proposal from the Sector was accepted. In the U.S. the bulk
density of grain is expressed in pounds per bushel and is based on a
specific USDA test method. In Europe (and other countries using the
metric system) bulk density is expressed in kilograms per hectoliter and
is based on a specific ISO test method. A straight units conversion of
lb/bu test weight to kg/hL using the USDA method does not equal the
kg/hL result of the ISO test method. A slope and bias must be applied to
the units conversion to account for the differences caused by using two
different test methods. When export contracts for wheat require that
bulk density be certified in kg/hL, GIPSA currently uses a special
adjustment from a U.S. test weight (lb/bu) to an \"ISO standard\" test
weight (kg/hL). For all other grains, a simple units conversion is used
to obtain values in kg/hL test weight. Some Sector members thought that
the inclusion of a metric tolerance was potentially confusing in the
U.S. marketplace. Others were of the opinion that this was not an issue
in the U.S., because U.S. grain standards are based on the USDA test
method for bulk density and are expressed in lb/bu. Several GMM
manufacturers indicated that their devices had the capability of
expressing bulk density in either U.S. Customary or metric units based
on a straight units conversion. However, they stated that a different
bulk density calibration was used for devices sold in countries where
bulk density was based on the ISO test method. The Sector took no formal
action on this matter.

**7. Proposed Changes and Additions to Publication 14 for Meters with
Test Weight per Bushel Capability**

> **7.a. Additions to the "Type Evaluation Test Procedures and
> Tolerances" Section**
>
> **Background**: A subcommittee prepared a draft of additions to the
> "Type Evaluation Test Procedures and Tolerances" Section of NCWM
> Publication 14 to cover the evaluation of GMMs incorporating test
> weight per bushel (TW) capability. In developing the draft, which was
> presented to the Sector at its August 2000 meeting, the subcommittee
> considered the following:
>
> 1\. To minimize the cost of type evaluation testing and provide an
> existing database for manufacturers to use in evaluating the proposed
> procedures, the subcommittee initially considered structuring tests to
> parallel the tests already established for GMMs. While this approach
> was determined to be feasible for most of the basic instrument tests,
> the subcommittee felt that test procedures and sample set selection
> should be modified for some tests to place the emphasis on test weight
> effects rather than on moisture effects. This was a particular concern
> for the accuracy, precision, and reproducibility tests in Phase I.
>
> A related concern is that Phase II samples are the primary source of
> Phase I accuracy samples. By the time air oven portions (200 g) have
> been cut out of the samples, only one-half to two-thirds of the
> samples are large enough to obtain a test weight reference value for
> Phase I tests using the procedures specified by the standard quart
> kettle method; the standard method requires a 1000 - 1050 gram sample
> for all grains except oats and sunflower seed. Also, the TW values
> currently being supplied to participants in the GMM Phase II on‑going
> calibration Program (OCP) cannot be considered \"official\" test
> weight results. Some of these TW values are obtained using samples
> just large enough to fill the TW kettle with very little overflow.
> Sample packing and TW results are typically reduced for these samples.
>
> Because TW readings are influenced by test conditions that affect
> grain surface characteristics, for some tests it is not desirable to
> use the same procedures for GMM and TW evaluations. For example, it
> seems desirable to reduce the number of repetitions per sample to
> avoid \"polishing\" grain samples. Also, it may be necessary to
> conduct all TW testing in an environmental chamber in which relative
> humidity can be controlled.
>
> For the above reasons (and for the reasons given in item 3, below), TW
> evaluations were not incorporated into the existing Phase I GMM tests;
> instead, addition of a new subsection containing only TW test
> procedures and tolerances was proposed.
>
> 2\. The subcommittee proposed that display and printout of TW be
> confined to moisture measurements within the 6% minimum NTEP required
> moisture range specified in the Application for NTEP testing for the
> following reasons: 1) measurement of TW beyond the upper limit of the
> 6% range is going to be of questionable accuracy/precision; 2) the
> moisture region of greatest importance for TW is at or near normal
> moistures associated with storage or no‑dockage‑for‑moisture levels
> which are included in the minimum NTEP required moisture range. The
> subcommittee\'s decision to limit TW to the \"standard\" 6% moisture
> ranges was not unanimous. Tom Runyon, Seedburo, favored using the same
> moisture range for both TW measurements and moisture measurements,
> because grains coming into the initial receiving stations at harvest
> exhibit moistures that are at the upper levels of the approved
> moisture ranges. When there is an issue of low test weight due to poor
> weather conditions or stress during maturation stages, grain elevators
> need to identify a Low Test Weight condition at first receipt, not
> just after the grain has been dried to the lower moisture levels.
>
> 3\. The matter of sample selection for TW was given serious
> consideration. Samples currently selected for moisture testing may not
> be suitable for TW testing. Because of existing criteria for selecting
> samples for Phase I moisture accuracy tests, it is already difficult
> to assemble a set of test samples. Imposing additional selection
> criteria for TW may make it impossible. The following criteria were
> included in the initial draft proposal submitted to the Sector:
>
> a\) a total of 12 samples will be used per grain type.
>
> b\) no less than 8 samples should come from the lowest two-thirds of
> the 6 % moisture range.
>
> c\) no less than 2 samples should come from the highest one-third of
> the 6 % moisture range.
>
> d\) samples should represent a distribution of TWs (ranges to be
> determined).
>
> e\) for the entire population of 12 samples, the correlation (R2)
> between moisture and reference TW is to be less than 0.20.
>
> 4\. The reference value for TW will be the average of 3 replicates on
> GIPSA\'s quart kettle apparatus. Samples will be dropped three times
> through each of two meters. The average of the initial and final
> reference values shall be used as the reference value in calculations
> of meter performance.
>
> 5\. To have a sufficient number of measurements to determine TW
> accuracy, the subcommittee proposes that bias and Standard Deviation
> of the Differences (SDD) be calculated for each instrument using the
> entire sample set of 12 samples. In addition, a tolerance will be
> applied to the slope between measured TW (the average of the 3 TW
> measurements of a sample) and the reference TW (the average of 3
> determinations as described above). Slope limits between 0.99 and 1.01
> were proposed.
>
> 6\. TW accuracy, repeatability, and reproducibility tests should be
> performed on all NTEP grains.

**Discussion:** In addition to reviewing the performance tests and
tolerances in the Subcommittee\'s draft proposal, the Sector considered
the following questions:

> 1\. What TW range should be specified for Hard Red Winter wheat
> samples used in the instrument stability and instrument temperature
> sensitivity tests?
>
> 2\. What TW range should be specified for samples used in accuracy,
> precision, and reproducibility tests?
>
> 3\. Should the moisture range for TW measurements be restricted to a
> 6% range? If not, how should the moisture range be determined, and
> should tolerances be different at higher moistures?
>
> 4\. Should Phase II testing be required for TW? If so, how should
> tolerances be applied and over what range of moistures?

The questions related to limiting moisture ranges for TW measurements
were the subject of lengthy discussion. The Sector acknowledged that for
practical reasons samples used in NTEP testing would have to be of a
restricted moisture range. Sample stability and availability were the
major limitations to expanding the moisture range of samples used in
Phase I testing. On the other hand, it seemed equally impractical to
have different upper limits on grain moisture for TW than for moisture
measurements, because grains coming into the initial receiving stations
at harvest exhibit moistures that are at the upper levels of the
approved moisture ranges. When there is an issue of low test weight due
to poor weather conditions or stress during maturation stages, grain
elevators need to identify a Low Test Weight condition at first receipt,
not just after the grain has been dried to the lower moisture levels. In
addition, restricting the display and print out of TW information at
higher moistures would unnecessarily prevent measurement of TW for
operational use (such as binning and drying) as opposed to commercial
use.

The suggestion to allow display and print out of TW beyond the 6%
moisture interval provided the device gave a clear warning that the TW
was \"outside limits\" was deemed impractical by device manufacturers
who indicated that major firmware changes would be required to apply
different moisture limits to moisture measurements and TW measurements
for different grains. Other members expressed the opinion that different
moisture limits would be confusing to producer and grain handlers alike.

One Sector member suggested that the issue should be viewed from the
perspective of how TW affects the money paid for grain:

**Corn** - TW becomes important only if TW is very low. Low TW occurs
only infrequently. In years when it does, it is typically common to an
entire growing region. There is a big difference between typical TW and
unusually low TW. Even if accuracy and precision of the TW measurement
is reduced at higher moistures, it is still possible to identify a low
TW condition.

**Wheat** - TW is important on wheat every day, but the proposed 10-16%
moisture range is where most wheat is harvested.

**Soybeans** - TW is somewhat important, but the proposed 6% moisture
range includes normally harvested moistures.

This sector member concluded that allowing display of TW beyond the
proposed limits was not a problem as there was no significant economic
impact on TW accuracy beyond the proposed limits. Another member
disagreed, citing the common harvesting of double-cropped soft red
winter wheat in his area at moistures above 16%. He questioned how
field-testing should be handled if TW results are allowed to be
displayed on higher moisture grains. Would the same tolerances apply to
TW at higher moistures? If so, should a device be failed if it passes
tests using samples within the 6% interval but is out of tolerance on
higher moisture samples? It was suggested that field-testing should be
limited to moistures within the 6% range. Refrigeration of TW transfer
samples is not recommended, and the ability to maintain the integrity of
test samples at higher moistures without refrigeration is questionable.
Also, the precision of the device under test and the precision of the
standard method begin to suffer at higher moistures. The Sector
concluded that field-testing at higher moistures did not seem practical.

To satisfy both the need to limit moistures for NTEP Phase I testing and
the need to provide TW indications at moistures beyond those used in
Phase I tests, it was decided that grain moisture meters would be
allowed to use the same moisture range for both TW measurements and
moisture measurements. On CCs, TW calibrations would be shown as
\"approved\" over a 6% moisture range and \"pending\" over the remainder
of the meter\'s moisture range. Participation in the Grain Moisture
Meter Phase II calibration monitoring program would be required to
verify performance over the TW \"pending\" range. Although the TW data
available from the Phase II program may not be suitable for use in the
basic instrument tests of Phase I, it was thought that the data would be
acceptable for determining the degree to which TW measurements are a
function of moisture over the device\'s operating moisture range. The
Sector unanimously agreed to recommend that the following criteria be
included in the checklist to address this concern:

-   The slope of TW error with respect to TW shall not be significant at
    a 95% confidence level over the 6% moisture range.

-   The slope of TW error with respect to percent moisture content shall
    not be significant at a 95% confidence level over the "Approved" and
    "Pending" moisture range of the device.

For all the proposed Publication 14 tests, the Sector was in full
agreement that the range of sample TWs should be no less than the range
that is grade determining. For example, for yellow dent corn the minimum
test weight per bushel is: 56 pounds per bushel for grade #1; 54 pounds
per bushel for grade #2; and 52 pounds per bushel for grade #3. Thus,
the minimum range specified for corn will be 52 to 56 pounds per bushel.
The Sector did not specifically address the cases of rice for which TW
is not a grade factor, and sunflower, which uses a single minimum TW (25
pounds per bushel) for all three grades.

The Sector reviewed a proposed addition to Publication 14 that reflected
changes made to the subcommittee\'s draft by the Sector at its August
2000 meeting. The Sector also considered the following three items that
had not been fully resolved at that meeting.

> 1\) Sample Volume Test. The angle of repose of wet corn (22%) is
> different than that of dry hard red winter wheat. If the device uses a
> sensor in the hopper to detect adequate sample size, it could
> conceivably pass the test on wheat but not detect insufficient volume
> when used with wet corn. Naturally moist wet corn may not be available
> at the time of year when a device is submitted for testing. It hasn\'t
> been determined that artificially moistened corn could be used for
> this test.
>
> 2\) It was suggested that tolerances on some of the basic instrument
> tests were too tight. The subcommittee acknowledged that the
> tolerances were based on preliminary data and suggested that
> manufacturers be given the opportunity to see if they are appropriate.
> The Sector has received no comments from manufacturers to indicate
> that the tolerances are too restrictive. These limits remain in the
> draft as originally proposed.
>
> 3\) What TW ranges should be specified for rice and sunflowers? TW is
> not a grade-determining factor for rice, and only a minimum TW of 25
> lb/bu is specified for sunflower seed.

It was pointed out that the minimum TW ranges proposed for several of
the grain types do not cover all the grades specified for those grains
in the current U.S. Grain Standards. For example, the specified minimum
TW for corn is 52 -- 56 lb/bu. This covers only grades 1, 2, and 3. U.S.
Grain Standards show requirements for 5 numbered grades with 46 lb/bu
the minimum TW for corn. There was concern that expanding the ranges to
cover the full range of TWs for all grades of a grain would make it
difficult to obtain samples for testing. In many years very low TW
samples are not available. The Sector agreed that the recommended ranges
address the areas of economic significance.

**Conclusions and Recommendation**: The Sector decided to leave the
Sample Volume Test as originally proposed. Corn will not be used for
this test. The Sector has received no comments from manufacturers to
indicate that the proposed tolerances are too restrictive, so the
tolerances remain as originally proposed. Manufacturers are not required
to have a TW calibration for rice, but the Sector agreed to a range of
42 -- 46 lb/bu for Long Grain Rough Rice and 44 -- 48 for Medium Grain
Rough Rice for testing purposes if a calibration is provided for those
grains. A TW calibration for sunflower seed will be tested over a range
of range of 24 -- 27 lb/bu. TW ranges were left as originally proposed.
The Sector also decided that it would not be necessary to monitor TW
calibrations in the OCP. Because TW depends on the direct measurement of
mass and volume, TW calibrations are not expected to be subject to the
same variations that affect moisture calibrations. It was reasoned that
field inspection was adequate to verify TW. Consequently, the
requirement for monitoring TW calibrations in the OCP was dropped from
the proposed recommendation. TW data will still be collected routinely
in the OCP and will be reported to manufacturers.

The Sector agreed to recommend adding the following new section (VII.)
to the "Type Evaluation Test Procedures and Tolerances" section of the
Grain Moisture Meter portion of NCWM Publication 14. \[Editor's Note:
Changes/additions involving equations have NOT been highlighted or
underlined. The MS change-tracking feature does not mark changes or
additions made using MS Equation Editor.\]

**VII. Additional Type Evaluation Test Procedures and Tolerances for
Grain Moisture Meters Incorporating an Automatic Test Weight per Bushel
Measuring Feature**

**A. Basic Instrument Tests**

Basic instrument tests will be conducted using a stable moisture
(12%-14%) HRW wheat sample to check the effect of sample volume
variations, power supply fluctuations, storage temperature, leveling,
and warm‑up time. Instrument stability tests will be conducted using HRW
wheat samples selected from all three 2 percent moisture intervals in
the 10 percent to 16 percent moisture range. All instrument tests will
be conducted on each of the two instruments submitted by a manufacturer.
For purposes of these tests, room temperature will be defined as 22 ºC 
±2 ºC.

> **Sample Volume**. A single HRW wheat sample with a moisture content
> between 12 percent and 14 percent will be used for this test. A
> quantity of 500 grams (or the maximum amount that can be loaded into
> the instrument\'s sample hopper) will be measured 3 times. This
> quantity will be reduced by 10 grams and then measured 3 times. The
> sample will continue to be reduced by 10 grams for each set of 3
> measurements until the instrument no longer displays and records a
> test weight per bushel result. The average of each set of 3
> measurements will be calculated.
>
> The maximum difference between any of the calculated averages shall
> not exceed 0.30 pounds per bushel.
>
> **Initial Precision**. A single HRW wheat sample with a moisture
> content between 12 percent and 14 percent will be analyzed 10 times at
> room temperature and nominal line voltage.
>
> Precision will be checked.
>
> The maximum allowable standard deviation of 10 analyses (precision) is
> 0.20 pounds per bushel.
>
> **Power Supply**. (**Note**: This test may be waived for instruments
> that have met the grain moisture meter test requirements provided that
> the instruments use the same volume and weight determining means for
> both moisture and test weight per bushel measurements.) A single HRW
> wheat sample with a moisture content between 12 percent and 14 percent
> will be analyzed 10 times with the meter operating at a voltage of
> 100 V. The voltage will be adjusted to 117 V. After 30 minutes, the
> HRW sample will be analyzed 10 times. The voltage level will then be
> increased to 130 V. After 30 minutes, the sample will be analyzed 10
> more times.
>
> Changes in bias and precision will be checked. Bias is defined as the
> change in the average test weight per bushel for 10 analyses made at
> both the reference and the respective test voltages.
>
> The maximum allowable bias change from the reference voltage (117 V)
> is ±0.20 pounds per bushel. The maximum allowable standard deviation
> of 10 analyses (precision), at any of the three voltage levels, is
> 0.20 pounds per bushel.
>
> **Storage Temperature**. A single HRW wheat sample (12%-14% moisture
> content) is analyzed 10 times at room temperature prior to temperature
> cycling. The instrument is then powered down and placed in the
> environmental chamber. The chamber temperature is then increased to 55
> ºC over a 1-hour period, and maintained at that temperature for 3
> hours. Chamber temperature is then decreased to ‑20 ºC over a 1-hour
> period, and maintained at that temperature for 3 hours. The
> temperature cycle is then repeated. After letting the instrument
> equilibrate to room temperature for at least 12 hours, the instrument
> is turned on for the specified warm‑up period and the test sample
> analyzed 10 more times.
>
> The maximum bias shift allowed for the average of 10 drops before and
> after temperature cycling is  0.20 pounds per bushel.
>
> **Leveling**. (Note: This test will be waived for instruments that
> have met the grain moisture meter test requirements provided that the
> instruments are equipped with leveling indicators and use the same
> volume and weight determining means for both moisture and test weight
> per bushel measurements.) Tests for leveling will be conducted using a
> single HRW wheat sample (12%-14% moisture content). The leveling test
> will be conducted for a minimum of 2 orientations, front-to-back and
> left-to-right, at a tilt of 5 percent. Additional orientations will be
> tested as deemed appropriate.
>
> The maximum allowable bias shift is  0.20 pounds per bushel for the
> average of 5 readings.
>
> **Warm‑up Time**. (**Note**: This test will be waived for instruments
> that have met the grain moisture meter test requirements provided that
> the instruments use the same volume and weight determining means for
> both moisture and test weight per bushel measurements.) The following
> test procedures will be used to check warm‑up times recommended by the
> manufacturer. If the manufacturer does not recommend a warm-up time,
> assume that accurate results will be provided immediately after
> turning the instrument power on.
>
> The instrument will be powered off and stabilized at room temperature.
> The instrument will be powered on and after waiting the specified
> warm‑up time a single wheat sample (12%-14% moisture content) will be
> analyzed 5 times. After waiting for a period of time equal to two
> times the manufacturer suggested warm‑up time, the sample will again
> be analyzed 5 times. The minimum waiting period before retesting the
> sample is one hour. Thus, for an instrument where no warm‑up time is
> specified, the sample would be tested immediately upon the instrument
> being powered up and then again after 1 hour.
>
> The maximum allowable bias shift is 0.20 pounds per bushel for the
> average of 5 readings.
>
> **Instrument Stability**. HRW wheat samples will be used to test
> instrument stability over a minimum 4‑6 week period. A set of three
> samples, representative of the test weight per bushel range of 56 - 60
> pounds per bushel, will be selected for testing. These samples may be
> a subset of the HRW test set for accuracy, repeatability, and
> reproducibility tests. Each of the 3 samples will be dropped 5 times
> through each of the two meters prior to running any other type
> evaluation tests, particularly before running the storage temperature
> test. The average test weight per bushel obtained for the 15
> observations (3 samples x 5 replicates) will be recorded. The 3
> samples will be retested once all other type evaluation testing has
> been completed (within 4 to 6 weeks).
>
> The maximum allowable bias shift over the 4 to 6 week period is 0.20
> pounds per bushel.

**B. Accuracy, Precision, And Reproducibility RequirementsAccuracy,
Precision, And Reproducibility Requirements:**

The automatic test weight per bushel measuring feature of grain moisture
meters will be tested for accuracy, repeatability (precision), and
reproducibility with 12 samples of each grain type for which the meter
has a pending or higher moisture calibration. Samples will be chosen to
represent the moistures and test weights per bushel shown in the
following table. The reference method for test weight per bushel is the
quart kettle test weight per bushel apparatus as specified by the USDA
GIPSA. The reference value will be the average of 3 replicates. Samples
will be dropped three times through each of two meters. The reference
value will be re-checked after the meters have been tested. The average
of the initial and final reference values shall be used as the reference
value in calculations of meter performance.

Three replicates will be run on each instrument for each sample,
resulting in a total of 72 observations of test weight per bushel per
grain type (2 instruments x 12 samples x 3 replicates).

+--------------------------+---------+-----------+--------------------+
| **Type of Grain**        | **M     | **Minimum | **Criteria for     |
|                          | oisture | Test      | Sample Selection** |
|                          | Range** | Weight    |                    |
|                          |         | per       |                    |
|                          |         | Bushel    |                    |
|                          |         | Range**   |                    |
+==========================+=========+===========+====================+
| Corn                     | 12-18%  | 52 - 56   | a\) No less than 8 |
|                          |         |           | samples should     |
|                          |         |           | come from the      |
|                          |         |           | lowest two-thirds  |
|                          |         |           | of the 6% moisture |
|                          |         |           | range.             |
|                          |         |           |                    |
|                          |         |           | b\) No less than 2 |
|                          |         |           | samples should     |
|                          |         |           | come from the      |
|                          |         |           | highest one-third  |
|                          |         |           | of the 6% moisture |
|                          |         |           | range.             |
|                          |         |           |                    |
|                          |         |           | c\) Samples should |
|                          |         |           | represent a        |
|                          |         |           | distribution of    |
|                          |         |           | Test Weights per   |
|                          |         |           | Bushel (TW) that   |
|                          |         |           | minimizes the      |
|                          |         |           | correlation        |
|                          |         |           | between TW and     |
|                          |         |           | moisture.          |
+--------------------------+---------+-----------+--------------------+
| Soybeans                 | 10-16%  | 52 - 56   |                    |
+--------------------------+---------+-----------+--------------------+
| Hard Red Winter Wheat    | 10-16%  | 56 - 60   |                    |
+--------------------------+---------+-----------+--------------------+
| Durum Wheat              | 10-16%  | 56 - 60   |                    |
+--------------------------+---------+-----------+--------------------+
| Soft White Wheat (except | 10-16%  | 56 - 60   |                    |
| White Club)              |         |           |                    |
+--------------------------+---------+-----------+--------------------+
| Hard Red Spring Wheat    | 10-16%  | 55 - 58   |                    |
| (and White Club)         |         |           |                    |
+--------------------------+---------+-----------+--------------------+
| Soft Red Winter Wheat    | 10-16%  | 56 - 60   |                    |
+--------------------------+---------+-----------+--------------------+
| Hard White Wheat         | 8-14%   | 56 - 60   |                    |
+--------------------------+---------+-----------+--------------------+
| Two-Row Barley           | 10-16%  | 43 - 47   |                    |
+--------------------------+---------+-----------+--------------------+
| Six-Row Barley           | 10-16%  | 43 - 47   |                    |
+--------------------------+---------+-----------+--------------------+
| Oats                     | 10-16%  | 30 - 36   |                    |
+--------------------------+---------+-----------+--------------------+
| Sunflower Seed (Oil      | 6-12%   | 24 - 27   |                    |
| Type)                    |         |           |                    |
+--------------------------+---------+-----------+--------------------+
| Long Grain Rough Rice    | 10-16%  | 42 - 46   |                    |
+--------------------------+---------+-----------+--------------------+
| Medium Grain Rough Rice  | 10-16%  | 44 - 48   |                    |
+--------------------------+---------+-----------+--------------------+
| Grain Sorghum or Milo    | 10-16%  | 53 - 57   |                    |
+--------------------------+---------+-----------+--------------------+

> **[Accuracy]{.underline}**. The two tests for accuracy are bias (meter
> versus the standard reference method) and the Standard Deviation of
> the Differences (SDD) between the meter and the standard reference
> method. Each instrument will be tested individually.
>
> $\text{Bias} = \frac{\sum_{i = 1}^{n}{({\overline{x}}_{i} - r_{i})}}{n}$
>
> where,
>
> ${\overline{x}}_{i}$ = average predicted test weight per bushel for
> sample *i* (3 replicates)
>
> $r_{i}$ = reference test weight per bushel for sample *i*
>
> $n$ = number of samples (n=12)
>
> $\text{SDD} = \sqrt{\frac{\sum_{i = 1}^{n}{(yi - \overline{y})^{2}}}{n - 1}}$
>
> where,
>
> $y_{i}$ = ${\overline{x}}_{i} - r_{i}$ (see above)
>
> $\overline{y}$ = average of the $y_{i}$
>
> $n$ = number of samples (n=12)
>
> Tolerances for bias and SDD tests are one-half the absolute value of
> the NIST Handbook 44 acceptance tolerance. Specific tolerances are:

  ----------------------------------- -----------------------------------
  **Grain Type**                      **Tolerance**

  Corn, oats                          0.4 pounds per bushel

  All wheat classes                   0.25 pounds per bushel

  Soybeans, barley, rice, sunflower,  0.35 pounds per bushel
  sorghum                             
  ----------------------------------- -----------------------------------

> The manufacturer may adjust the calibration bias to compensate for
> differences from the type evaluation laboratory in reference methods
> or sample sets.
>
> **Repeatability**. The Standard Deviation (SD) of the three test
> weight per bushel replicates will be calculated for each sample and
> pooled across samples. Each instrument will be tested individually.
> The equation used to calculate SD is:
>
> $\text{SD} = \sqrt{\frac{\sum_{i = 1}^{n}{\sum_{j = 1}^{3}{(P\text{ij} - \overline{P}i)^{2}}}}{2n}}$
>
> where,
>
> $P_{\text{ij}}$ = predicted test weight per bushel for sample i and
> replicate j
>
> ${\overline{P}}_{i}$ = average of the three predicted test weight per
> bushel values for sample i
>
> $n$ = number of samples (n=12)
>
> Tolerances for repeatability are 0.4 x the absolute value of the
> Handbook 44 acceptance tolerance. Specific tolerances are:

  ----------------------------------- -----------------------------------
  **Grain Type**                      **Tolerance**

  Corn, oats                          0.32 pounds per bushel

  All wheat classes                   0.20 pounds per bushel

  Soybeans, barley, rice, sunflower,  0.28 pounds per bushel
  sorghum                             
  ----------------------------------- -----------------------------------

> **Reproducibility**. The results for each of the three test weight per
> bushel replicates will be averaged for each instrument, and the
> Standard Deviation of the Differences (SDD) between instruments will
> be calculated using the following equation:
>
> $\text{SDD} = \sqrt{\frac{\sum_{i = 1}^{n}{(d_{i} - \overline{d})^{2}}}{n - 1}}$
>
> where,
>
> $d_{i}$ = ${\overline{P}}_{1i} - {\overline{P}}_{2i}$
>
> ${\overline{P}}_{1i}$ = average of three replicates for sample i on
> instrument 1
>
> ${\overline{P}}_{2i}$ = average of three replicates for sample i on
> instrument 2
>
> $\overline{d}$ = average of the $d_{i}$
>
> $n$ = number of samples (n=12)
>
> Tolerances for reproducibility are 0.5 x the absolute value of the
> Handbook 44 acceptance tolerance. Specific tolerances are:

  ----------------------------------- -----------------------------------
  **Grain Type**                      **Tolerance**

  Corn, oats                          0.40 pounds per bushel

  All wheat classes                   0.25 pounds per bushel

  Soybeans, barley, rice, sunflower,  0.35 pounds per bushel
  sorghum                             
  ----------------------------------- -----------------------------------

> **7.b. Proposed Changes/Additions to the Checklist Section**
>
> **Conclusions and Recommendation:** The Sector agreed to the following
> changes to the checklist section of the Grain Moisture Meter portion
> of NCWM Publication 14 to reflect recent additions/changes to NIST
> Handbook 44, Section 5.56(a) Grain Moisture Meter Code that recognize
> indications and recorded representations of test weight per bushel.

**3. Indicating Elements, Recording Elements, and Recorded
Representations**

  ----------------- ------------------------------------------------- ----------------
  Code Reference:                                                     
  S.1.1. Digital                                                      
  Indications and                                                     
  Recording                                                           
  Elements                                                            

  **Note**:                                                           
  Requirements                                                        
  cited for "test                                                     
  weight per                                                          
  bushel"                                                             
  indications or                                                      
  recorded                                                            
  representations                                                     
  are applicable                                                      
  only to devices                                                     
  incorporating an                                                    
  automatic test                                                      
  weight per bushel                                                   
  measuring                                                           
  feature.                                                            

  3.1               The meter shall be equipped with a digital        Yes No NA
                    indicating element.                               

  3.2.              The minimum height for digits used to display     Yes No NA
                    moisture is 10 mm.                                

  3.3.              The meter is equipped with a communications       Yes No NA
                    interface and can transmit the date, grain types, 
                    grain moisture results, test weight per bushel    
                    results, and calibration version identification.  

  3.4.              A digital indicating element or recording element Yes No NA
                    shall not display any moisture content values or  
                    test weight per bushel values before the end of   
                    the measurement cycle.                            

  3.5.              The meter shall indicate and/or record in terms   Yes No NA
                    of percent moisture content wet basis. [Test      
                    weight per bushel results shall be displayed and  
                    recorded as pounds per bushel.]{.underline}       
                    Subdivisions of these units shall be in terms of  
                    decimal subdivisions (not fractions).             

  3.6.              Digital indicating and recording elements shall   Yes No NA
                    not display or record any values when the grain   
                    moisture content is beyond the operating range    
                    specified by the manufacturer, unless the         
                    moisture [and test weight]{.underline}            
                    representations include a clear error indication. 

  3.7.              On multi-constituent meters (e.g., meters which   Yes No NA
                    also measure grain protein, starch and/or oil)    
                    provision shall be made for displaying and        
                    recording the constituent label (such as moist,   
                    prot., etc.) so as to make it clear which         
                    constituent is associated with each of the        
                    displayed and recorded values.                    
  ----------------- ------------------------------------------------- ----------------

+----+-----+-----------------------------------------+---------------+
| Co |     |                                         |               |
| de |     |                                         |               |
| Re |     |                                         |               |
| fe |     |                                         |               |
| re |     |                                         |               |
| nc |     |                                         |               |
| e: |     |                                         |               |
| S. |     |                                         |               |
| 1. |     |                                         |               |
| 3. |     |                                         |               |
| O  |     |                                         |               |
| pe |     |                                         |               |
| ra |     |                                         |               |
| ti |     |                                         |               |
| ng |     |                                         |               |
| R  |     |                                         |               |
| an |     |                                         |               |
| ge |     |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 3  | A   |                                         | Yes No NA     |
| .9 | me  |                                         |               |
|    | ter |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | a   |                                         |               |
|    | uto |                                         |               |
|    | mat |                                         |               |
|    | ica |                                         |               |
|    | lly |                                         |               |
|    | and |                                         |               |
|    | c   |                                         |               |
|    | lea |                                         |               |
|    | rly |                                         |               |
|    | in  |                                         |               |
|    | dic |                                         |               |
|    | ate |                                         |               |
|    | w   |                                         |               |
|    | hen |                                         |               |
|    | the |                                         |               |
|    | mo  |                                         |               |
|    | ist |                                         |               |
|    | ure |                                         |               |
|    | c   |                                         |               |
|    | ont |                                         |               |
|    | ent |                                         |               |
|    | ope |                                         |               |
|    | rat |                                         |               |
|    | ing |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | has |                                         |               |
|    | b   |                                         |               |
|    | een |                                         |               |
|    | exc |                                         |               |
|    | eed |                                         |               |
|    | ed. |                                         |               |
|    | Met |                                         |               |
|    | ers |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | not |                                         |               |
|    | d   |                                         |               |
|    | isp |                                         |               |
|    | lay |                                         |               |
|    | a   |                                         |               |
|    | mo  |                                         |               |
|    | ist |                                         |               |
|    | ure |                                         |               |
|    | res |                                         |               |
|    | ult |                                         |               |
|    | w   |                                         |               |
|    | hen |                                         |               |
|    | ope |                                         |               |
|    | rat |                                         |               |
|    | ing |                                         |               |
|    | te  |                                         |               |
|    | mpe |                                         |               |
|    | rat |                                         |               |
|    | ure |                                         |               |
|    | ran |                                         |               |
|    | ges |                                         |               |
|    | are |                                         |               |
|    | exc |                                         |               |
|    | eed |                                         |               |
|    | ed. |                                         |               |
|    | In  |                                         |               |
|    | b   |                                         |               |
|    | oth |                                         |               |
|    | i   |                                         |               |
|    | nst |                                         |               |
|    | anc |                                         |               |
|    | es, |                                         |               |
|    | a   |                                         |               |
|    | cl  |                                         |               |
|    | ear |                                         |               |
|    | er  |                                         |               |
|    | ror |                                         |               |
|    | i   |                                         |               |
|    | ndi |                                         |               |
|    | cat |                                         |               |
|    | ion |                                         |               |
|    | is  |                                         |               |
|    | req |                                         |               |
|    | uir |                                         |               |
|    | ed. |                                         |               |
|    | A 5 |                                         |               |
|    | °C  |                                         |               |
|    | tol |                                         |               |
|    | era |                                         |               |
|    | nce |                                         |               |
|    | is  |                                         |               |
|    | a   |                                         |               |
|    | ppl |                                         |               |
|    | ied |                                         |               |
|    | to  |                                         |               |
|    | te  |                                         |               |
|    | mpe |                                         |               |
|    | rat |                                         |               |
|    | ure |                                         |               |
|    | ran |                                         |               |
|    | ges |                                         |               |
|    | w   |                                         |               |
|    | hen |                                         |               |
|    | t   |                                         |               |
|    | est |                                         |               |
|    | ing |                                         |               |
|    | to  |                                         |               |
|    | ver |                                         |               |
|    | ify |                                         |               |
|    | t   |                                         |               |
|    | hat |                                         |               |
|    | mo  |                                         |               |
|    | ist |                                         |               |
|    | ure |                                         |               |
|    | r   |                                         |               |
|    | esu |                                         |               |
|    | lts |                                         |               |
|    | are |                                         |               |
|    | not |                                         |               |
|    | dis |                                         |               |
|    | pla |                                         |               |
|    | yed |                                         |               |
|    | or  |                                         |               |
|    | p   |                                         |               |
|    | rin |                                         |               |
|    | ted |                                         |               |
|    | w   |                                         |               |
|    | hen |                                         |               |
|    | the |                                         |               |
|    | te  |                                         |               |
|    | mpe |                                         |               |
|    | rat |                                         |               |
|    | ure |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | is  |                                         |               |
|    | exc |                                         |               |
|    | eed |                                         |               |
|    | ed. |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 3  | The |                                         | Yes No NA     |
| .1 | ope |                                         |               |
| 0. | rat |                                         |               |
|    | ing |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | s   |                                         |               |
|    | pec |                                         |               |
|    | ify |                                         |               |
|    | the |                                         |               |
|    | f   |                                         |               |
|    | oll |                                         |               |
|    | owi |                                         |               |
|    | ng: |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | 3   | The ambient temperature range over      | Yes No NA     |
|    | .10 | which the meter may be used is          |               |
|    | .1. | specified and moisture results are      |               |
|    |     | neither displayed nor printed outside   |               |
|    |     | this range.                             |               |
+----+-----+-----------------------------------------+---------------+
|    | 3   | The temperature range for each grain or | Yes No NA     |
|    | .10 | seed for which the meter is to be used  |               |
|    | .2. | is specified and moisture results are   |               |
|    |     | neither displayed nor printed outside   |               |
|    |     | this range.                             |               |
+----+-----+-----------------------------------------+---------------+
|    | 3   | The moisture range for each grain or    | Yes No NA     |
|    | .10 | seed for which the meter is to be used  |               |
|    | .3. | is specified. Moisture and test weight  |               |
|    |     | per bushel values may be displayed when |               |
|    |     | the moisture range is exceeded and an   |               |
|    |     | error message is displayed when values  |               |
|    |     | are outside the moisture and test       |               |
|    |     | weight range.                           |               |
+----+-----+-----------------------------------------+---------------+
|    | 3   | The maximum allowable difference in     | Yes No NA     |
|    | .10 | temperature between the meter           |               |
|    | .4. | environment (ambient temperature) and   |               |
|    |     | the sample for which an accurate        |               |
|    |     | moisture determination can be made is   |               |
|    |     | specified. Moisture results are neither |               |
|    |     | displayed nor printed outside this      |               |
|    |     | range.                                  |               |
+----+-----+-----------------------------------------+---------------+
| Co |     |                                         |               |
| de |     |                                         |               |
| Re |     |                                         |               |
| fe |     |                                         |               |
| re |     |                                         |               |
| nc |     |                                         |               |
| e: |     |                                         |               |
| S. |     |                                         |               |
| 1. |     |                                         |               |
| 4. |     |                                         |               |
| V  |     |                                         |               |
| al |     |                                         |               |
| ue |     |                                         |               |
| of |     |                                         |               |
| Sm |     |                                         |               |
| al |     |                                         |               |
| le |     |                                         |               |
| st |     |                                         |               |
| Un |     |                                         |               |
| it |     |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 3  | The |                                         | Yes No NA     |
| .1 | va  |                                         |               |
| 1. | lue |                                         |               |
|    | of  |                                         |               |
|    | the |                                         |               |
|    | m   |                                         |               |
|    | ini |                                         |               |
|    | mum |                                         |               |
|    | mo  |                                         |               |
|    | ist |                                         |               |
|    | ure |                                         |               |
|    | inc |                                         |               |
|    | rem |                                         |               |
|    | ent |                                         |               |
|    | ind |                                         |               |
|    | ica |                                         |               |
|    | ted |                                         |               |
|    | or  |                                         |               |
|    | re  |                                         |               |
|    | cor |                                         |               |
|    | ded |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | not |                                         |               |
|    | exc |                                         |               |
|    | eed |                                         |               |
|    | 0.1 |                                         |               |
|    | pe  |                                         |               |
|    | rce |                                         |               |
|    | nt. |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 3  | T   |                                         | Yes No NA     |
| .1 | est |                                         |               |
| 2. | wei |                                         |               |
|    | ght |                                         |               |
|    | per |                                         |               |
|    | bus |                                         |               |
|    | hel |                                         |               |
|    | val |                                         |               |
|    | ues |                                         |               |
|    | are |                                         |               |
|    | d   |                                         |               |
|    | ete |                                         |               |
|    | rmi |                                         |               |
|    | ned |                                         |               |
|    | to  |                                         |               |
|    | the |                                         |               |
|    | n   |                                         |               |
|    | ear |                                         |               |
|    | est |                                         |               |
|    | 0.1 |                                         |               |
|    | po  |                                         |               |
|    | und |                                         |               |
|    | per |                                         |               |
|    | bus |                                         |               |
|    | hel |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 3  | A   |                                         | Yes No NA     |
| .1 | me  |                                         |               |
| 3. | ter |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | not |                                         |               |
|    | rec |                                         |               |
|    | ord |                                         |               |
|    | any |                                         |               |
|    | usa |                                         |               |
|    | ble |                                         |               |
|    | val |                                         |               |
|    | ues |                                         |               |
|    | un  |                                         |               |
|    | til |                                         |               |
|    | the |                                         |               |
|    | ope |                                         |               |
|    | rat |                                         |               |
|    | ing |                                         |               |
|    | te  |                                         |               |
|    | mpe |                                         |               |
|    | rat |                                         |               |
|    | ure |                                         |               |
|    | nec |                                         |               |
|    | ess |                                         |               |
|    | ary |                                         |               |
|    | for |                                         |               |
|    | ac  |                                         |               |
|    | cur |                                         |               |
|    | ate |                                         |               |
|    | d   |                                         |               |
|    | ete |                                         |               |
|    | rmi |                                         |               |
|    | nat |                                         |               |
|    | ion |                                         |               |
|    | has |                                         |               |
|    | b   |                                         |               |
|    | een |                                         |               |
|    | att |                                         |               |
|    | ain |                                         |               |
|    | ed, |                                         |               |
|    | **O |                                         |               |
|    | R** |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 3  | the |                                         | Yes No NA     |
| .1 | me  |                                         |               |
| 4. | ter |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | b   |                                         |               |
|    | ear |                                         |               |
|    | a   |                                         |               |
|    | co  |                                         |               |
|    | nsp |                                         |               |
|    | icu |                                         |               |
|    | ous |                                         |               |
|    | sta |                                         |               |
|    | tem |                                         |               |
|    | ent |                                         |               |
|    | ad  |                                         |               |
|    | jac |                                         |               |
|    | ent |                                         |               |
|    | to  |                                         |               |
|    | the |                                         |               |
|    | i   |                                         |               |
|    | ndi |                                         |               |
|    | cat |                                         |               |
|    | ion |                                         |               |
|    | s   |                                         |               |
|    | tat |                                         |               |
|    | ing |                                         |               |
|    | t   |                                         |               |
|    | hat |                                         |               |
|    | the |                                         |               |
|    | me  |                                         |               |
|    | ter |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | be  |                                         |               |
|    | tur |                                         |               |
|    | ned |                                         |               |
|    | on  |                                         |               |
|    | for |                                         |               |
|    | a   |                                         |               |
|    | t   |                                         |               |
|    | ime |                                         |               |
|    | per |                                         |               |
|    | iod |                                         |               |
|    | spe |                                         |               |
|    | cif |                                         |               |
|    | ied |                                         |               |
|    | by  |                                         |               |
|    | the |                                         |               |
|    | man |                                         |               |
|    | ufa |                                         |               |
|    | ctu |                                         |               |
|    | rer |                                         |               |
|    | pr  |                                         |               |
|    | ior |                                         |               |
|    | to  |                                         |               |
|    | u   |                                         |               |
|    | se. |                                         |               |
|    |     |                                         |               |
|    | A   |                                         |               |
|    | me  |                                         |               |
|    | ter |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | m   |                                         |               |
|    | eet |                                         |               |
|    | all |                                         |               |
|    | a   |                                         |               |
|    | ppl |                                         |               |
|    | ica |                                         |               |
|    | ble |                                         |               |
|    | t   |                                         |               |
|    | ole |                                         |               |
|    | ran |                                         |               |
|    | ces |                                         |               |
|    | wh  |                                         |               |
|    | en: |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 3  | Op  |                                         | Yes No NA     |
| .1 | era |                                         |               |
| 5. | ted |                                         |               |
|    | in  |                                         |               |
|    | the |                                         |               |
|    | te  |                                         |               |
|    | mpe |                                         |               |
|    | rat |                                         |               |
|    | ure |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | of  |                                         |               |
|    | 10  |                                         |               |
|    | °C  |                                         |               |
|    | to  |                                         |               |
|    | 30  |                                         |               |
|    | °C  |                                         |               |
|    | (50 |                                         |               |
|    | °F  |                                         |               |
|    | to  |                                         |               |
|    | 86  |                                         |               |
|    | °   |                                         |               |
|    | F), |                                         |               |
|    | or  |                                         |               |
|    | wit |                                         |               |
|    | hin |                                         |               |
|    | the |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | spe |                                         |               |
|    | cif |                                         |               |
|    | ied |                                         |               |
|    | by  |                                         |               |
|    | the |                                         |               |
|    | me  |                                         |               |
|    | ter |                                         |               |
|    | m   |                                         |               |
|    | anu |                                         |               |
|    | fac |                                         |               |
|    | tur |                                         |               |
|    | er. |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 3  | If  |                                         | Yes No NA     |
| .1 | the |                                         |               |
| 6. | man |                                         |               |
|    | ufa |                                         |               |
|    | ctu |                                         |               |
|    | rer |                                         |               |
|    | spe |                                         |               |
|    | cif |                                         |               |
|    | ies |                                         |               |
|    | a   |                                         |               |
|    | te  |                                         |               |
|    | mpe |                                         |               |
|    | rat |                                         |               |
|    | ure |                                         |               |
|    | ran |                                         |               |
|    | ge, |                                         |               |
|    | the |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | be  |                                         |               |
|    | at  |                                         |               |
|    | le  |                                         |               |
|    | ast |                                         |               |
|    | 20  |                                         |               |
|    |  °C |                                         |               |
|    | (36 |                                         |               |
|    | °   |                                         |               |
|    | F). |                                         |               |
+----+-----+-----------------------------------------+---------------+

  --------------- ----------------- ------------------------------------------ ----------------
  Code Reference:                                                              
  S.2.6.                                                                       
  Determination                                                                
  of Quantity and                                                              
  Temperature                                                                  

  4.7.            The meter does                                               Yes No NA
                  not require the                                              
                  operator to judge                                            
                  the precise                                                  
                  volume or weight                                             
                  and temperature                                              
                  to make accurate                                             
                  moisture                                                     
                  determinations.                                              

  4.8.            For meters that                                              Yes No NA
                  measure test                                                 
                  weight, the                                                  
                  determination of                                             
                  sample volume and                                            
                  weight are fully                                             
                  automatic.                                                   

  4.9.            Means are                                                    Yes No NA
                  available to                                                 
                  determine that a                                             
                  sufficient sample                                            
                  size is available                                            
                  and there is no                                              
                  display of test                                              
                  weight per bushel                                            
                  when there is                                                
                  insufficient                                                 
                  sample to provide                                            
                  accurate                                                     
                  measurements.                                                

  4.10.           External                                                     Yes No NA
                  grinding,                                                    
                  weighing and                                                 
                  temperature                                                  
                  measurements are                                             
                  not required for                                             
                  accurate moisture                                            
                  measurements.                                                

  Code Reference:                                                              
  S.3. Accessory                                                               
  Equipment                                                                    

  4.11.           If accessory                                                 Yes No NA
                  equipment                                                    
                  separate from and                                            
                  external to the                                              
                  moisture meter is                                            
                  required, it is                                              
                  appropriate and                                              
                  complete for the                                             
                  measurement.                                                 

  Code Reference:                                                              
  S.4. Operating                                                               
  Instructions                                                                 
  and Use                                                                      
  Limitations                                                                  

  4.12.           Operating                                                    Yes No NA
                  instructions                                                 
                  shall be                                                     
                  furnished by the                                             
                  manufacturer with                                            
                  each device.                                                 
                  Complete                                                     
                  information                                                  
                  concerning the                                               
                  accuracy,                                                    
                  sensitivity, and                                             
                  use of accessory                                             
                  equipment                                                    
                  necessary in                                                 
                  obtaining                                                    
                  moisture content                                             
                  shall be                                                     
                  included.                                                    

                  In addition,                                                 
                  operating                                                    
                  instructions                                                 
                  shall include the                                            
                  following                                                    
                  information:                                                 

                  4.12.1.           Name and address or trademark of the       Yes No NA
                                    manufacturer.                              

                  4.12.2.           The type or design of the device with      Yes No NA
                                    which it is intended to be used.           

                  4.12.3.           Date of issue.                             Yes No NA

                  4.12.4.           The kind or classes of grain or seed for   Yes No NA
                                    which the device is designed to measure    
                                    moisture content and test weight per       
                                    bushel.                                    

                  4.12.5.           The limitations of use (e.g., moisture     Yes No NA
                                    measurement range, grain or seed           
                                    temperature, kind or class of grain or     
                                    seed, instrument temperature, voltage and  
                                    frequency ranges, electromagnetic          
                                    interferences, and necessary accessory     
                                    equipment).                                
  --------------- ----------------- ------------------------------------------ ----------------

**8. NTEP Committee Authorizes "Dual Certification"**

**Discussion:** The NTEP Committee reviewed the following recommendation
during the 2003 NCWM Interim Meeting in Jacksonville, FL and accepted
the Sector recommendation to issue a single Certificate of Conformance
to a device that has been evaluated using two inter-related codes.

> 501-7 Grain Moisture Meter (GMM) and Near Infrared (NIR) Instruments
> Dual Certification
>
> **Source**: GMM and NIR Sectors
>
> **Recommendation**: The Sectors recommended that NCWM, Inc. authorize
> issuing a single CC for devices successfully type evaluated using two
> inter-related codes (e.g., a "Grain Moisture Meter CC with Near
> Infrared Grain Analyzer Certification" or, simply, "NIR Grain Analyzer
> with Dual Certification").

Steve Patoray, NTEP Director, outlined changes being considered for
improvements in the database that NCWM maintains for CC\'s. In the
improved database, devices would be classified first by a generic name
and then by a secondary name or descriptor. For example, devices used to
measure an attribute of grain, whether moisture or protein, would be
classified generically as \"grain analyzers.\" Proposed
subclassifications under \"grain analyzers\" are: moisture only,
moisture plus test weight, and multi-feature. A grain moisture meter
successfully evaluated under both GMM and NIR Analyzer codes would be
classified as Grain Analyzer/Multi-Feature.

**9. Proposed Changes to Publication 14 to Improve Consistency between
GMM and NIR Checklists**

**Discussion**: The NTEP Laboratory has pointed out discrepancies
between the Near Infrared Grain Analyzer (NIR) and Grain Moisture Meter
(GMM) checklists in Publication 14 for several similar tests. The
following changes are suggested to improve consistency between the two
checklists, to remove ambiguity, and to correct errors.

**Conclusion**: The Sector agreed to all of the following
recommendations.

> **9.a. Power Supply Tests**
>
> **Recommendation:** Modify the Power Supply paragraphs of the "Type
> Evaluation Test Procedures and Tolerances" sections of the checklists
> for Near Infrared Grain Analyzers (NIR) and Grain Moisture Meters
> (GMM) respectively as shown below to improve consistency and to
> explicitly define the reference voltage:
>
> **NIR Checklist:**
>
> **Power Supply.** A single HRW wheat sample will be analyzed 10 times
> with the instrument operating at a voltage of100 V. The voltage will
> be adjusted to 117 V. After 30 minutes, the HRW sample will be
> analyzed 10 times. The voltage level will then be increased to 130 V.
> After 30 minutes, the sample will be analyzed 10 more times.
>
> Changes in bias and precision will be checked. Bias is defined as the
> change in the average protein for 10 analyses made at both the
> reference and the respective test voltages.
>
> The maximum allowable bias change from the reference voltage (117 V)
> is ± 0.10. The maximum allowable standard deviation of 10 analyses
> (precision), at any of the three voltage levels, is 0.10.
>
> **GMM Checklist:**
>
> **Power Supply.** A single HRW wheat sample with a moisture content
> between 12 % and 14 % will be analyzed 10 times with the meter
> operating at a voltage of 100 V. The voltage will be adjusted to 117
> V. After 30 minutes, the HRW sample will be analyzed 10 times. The
> voltage level will then be increased to 130 V. After 30 minutes, the
> sample will be analyzed 10 more times.
>
> Changes in bias and precision will be checked. Bias is defined as the
> change in the average moisture for 10 analyses made at both the
> reference and the respective test voltages.
>
> The maximum allowable bias change from the reference voltage (117 V)
> is ± 0.20 percent. The maximum allowable standard deviation of 10
> analyses (precision) at any of the three voltage levels is 0.10
> percent.
>
> **9.b. Leveling Tests**
>
> **Recommendation:** Remove the redundant first sentence of the
> Leveling Test of the NIR Checklist, and modify the wording of the
> tolerance sentence to specify that bias is calculated from the average
> of 5 readings. The proposed changes are shown below. \[**Note**: the
> Leveling Test from the GMM Checklist is shown below for reference.\]
>
> **NIR Checklist:**
>
> **Leveling.** The leveling test will be conducted for a minimum of 2
> orientations, front-to-back and left-to-right, at a tilt of 5 percent.
> Devices equipped with leveling indicators will be tested at the
> indicated limits of the level indicator rather than at a tilt of 5
> percent. Additional orientations will be tested as deemed appropriate.
>
> The maximum allowable bias shift is ± 0.10 for the average of 5
> readings.
>
> **GMM Checklist:**
>
> **Leveling**. Tests for leveling will be conducted using a single HRW
> wheat sample with a moisture content between 12Percent and 14Percent.
> The leveling test will be conducted for a minimum of 2 orientations,
> front-to-back and left-to-right, at a tilt of 5 percent. Meters
> equipped with leveling indicators will be tested at the indicated
> limits of the level indicator rather than at a tilt of 5 percent.
> Additional orientations will be tested as deemed appropriate.
>
> The maximum allowable bias shift is ± 0.20 percent for the average of
> 5 readings.
>
> **9.c. Warm-up Time Tests**
>
> **Recommendation:** Modify the Warm-up Time tests of the NIR and GMM
> Checklists respectively as shown below to improve consistency:
>
> **NIR Checklist:**
>
> **Warm-up Time.** The following test procedures will be used to check
> warm-up times recommended by the manufacturer. If the manufacturer
> does not recommend a warm-up time, assume that accurate results will
> be provided immediately after turning the instrument power on.
>
> The instrument will be powered off and stabilized at room temperature.
> The instrument will be powered on and after waiting the specified
> warm-up time a single wheat sample will be analyzed 5 times. After
> waiting for a period of time equal to two times the manufacturer\'s
> suggested warm-up time, the sample will be analyzed 5 more times. The
> minimum waiting period before retesting the sample is one hour. Thus,
> for an instrument where no warm-up time is specified, the sample would
> be tested immediately upon the instrument being powered on and then
> again after 1 hour.
>
> The maximum allowable bias shift is ± 0.10 for the average of 5
> readings.
>
> **GMM Checklist:**
>
> **Warm-up Time.** The following test procedures will be used to check
> warm-up times recommended by the manufacturer. If the manufacturer
> does not recommend a warm-up time, assume that accurate results will
> be provided immediately after turning the instrument power on.
>
> The instrument will be powered off and stabilized at room temperature.
> The instrument will be powered on and after waiting the specified
> warm-up time, a single wheat sample (12%-14% moisture content) will be
> analyzed 5 times. After waiting for a period of time equal to two
> times the manufacturer\'s suggested warm-up time, the sample will be
> analyzed 5 more times. The minimum waiting period before retesting the
> sample is one hour. Thus, for an instrument where no warm-up time is
> specified, the sample would be tested immediately upon the instrument
> being powered on and then again after 1 hour.
>
> The maximum allowable bias shift is ± 0.20 percent for the average of
> 5 readings.
>
> **9.d. Sample Temperature Sensitivity Test**
>
> **Recommendation:** Modify the first paragraph of the Sample
> Temperature Sensitivity Tests of the NIR and GMM Checklists
> respectively, as shown below, to improve consistency, to clarify the
> meaning, and to correct an error in the GMM checklist:
>
> **NIR Checklist:**
>
> **II. Sample Temperature Sensitivity.**
>
> Testing is required to verify that accurate results are provided when
> the sample and instrument are at different temperatures. This will be
> referred to as the sample temperature sensitivity test. Tests will be
> conducted with the instrument at room temperature and the sample
> temperature varying from room temperature plus ∆T~H~ to room
> temperature minus ∆T~C~, where ∆T~H~ is the magnitude of the
> manufacturer-specified maximum difference for grain above room
> temperature, and ∆T~C~ is the magnitude of the manufacturer-specified
> maximum difference for grain below room temperature. In no case will
> room temperature plus ∆T~H~ be allowed to exceed 45 °C, but ∆T~H~ need
> not equal ∆T~C~. For purposes of these tests, room temperature will be
> defined as 22 ^o^C ± 2 ^o^C.
>
> **GMM Checklist:**
>
> **II. Sample Temperature Sensitivity:**
>
> Testing is required to verify that accurate results are provided when
> the sample and instrument are at different temperatures. This will be
> referred to as the sample temperature sensitivity test. The sample
> temperature sensitivity test will be conducted using corn, HRW wheat,
> and soybean samples. Tests will be conducted with the instrument at
> room temperature and the sample temperature varying from room
> temperature plus ∆TH to room temperature minus ∆TC, where ∆TH is the
> magnitude of the manufacturer specified maximum difference for grain
> above room temperature and ∆TC is the magnitude of the manufacturer
> specified maximum difference for grain below room temperature. In no
> case will room temperature plus ∆TH be allowed to exceed 45 °C, but
> ∆TH need not equal ∆TC. For purposes of these tests, room temperature
> will be defined as 22 oC ± 2 oC

**10. NTETC GMM/NIR Sector Support -- Response to Sector's Letter to
NCWM Chairman**

**Background:** At the August 2002 meeting of the GMM and NIR Sectors,
Don Onwiler, Nebraska Department of Agriculture, Division of Weights &
Measures, representing the NCWM Board of Directors (BOD), informed the
Sectors that the BOD believes that the major work of the GMM & NIR
Sectors has been completed. The BOD questioned whether annual Sector
meetings would be required in the future. Don pointed out that the GMM
Sector contributes only \$500 annually to NTEP. The BOD calculates the
total staff costs associated with the GMM/NIR Sector is about \$15,000.
In an effort to reduce costs, the BOD has decided that public members
will no longer receive funding for travel to attend the GMM/NIR Sector
meetings.

The information that Don presented at the Sector meeting raised concerns
among the sector members with the direction that NCWM, Inc. seems to be
taking with regard to the GMM and NIR Sectors. Because of these
concerns, Sector Chairman, Cassie Eigenmann-Pierson, DICKEY-john Corp.,
was urged to send a letter to Ross Andersen, NCWM BOD Chairman, to
express the Sector's concerns, to request a breakdown of actual recent
GMM/NIR Sector meeting costs, and to seek continued NCWM, Inc. support
of future meetings. The letter was drafted and sent to Mr. Andersen in
October 2002.

**Discussion:** Ross Anderson, NCWM Chairman, appeared at the Sector\'s
August 2003 meeting to respond in person to the Sector\'s letter and to
obtain feedback for the BOD to use in future planning. Ross said that
the board understands the importance to commerce and the complexity of
issues related to grain moisture meters and NIR grain analyzers. Equity
in the system is a concern. He noted that the Sector\'s discussions
relating to lack of alignment among meters seemed to indicate that the
system was not resulting in the kind of equity expected. He recognized
the importance of the Sector\'s work on standards, stating that when
proper standards are met, the system will have uniformity.
Unfortunately, the costs of supporting the Sector\'s activities exceed
the income provided by the Sector. According to Ross, GMM/NIR Income and
Expenses for the past 12 months resulted in a net loss of \$9,831 as
detailed below:

+------------------------------------------------+---------+----------+
| **Income**                                     |         |          |
+------------------------------------------------+---------+----------+
| based on five active CC\'s                     |         | **\$1,   |
|                                                |         | 425.00** |
+------------------------------------------------+---------+----------+
|                                                |         |          |
+------------------------------------------------+---------+----------+
| **Expenses**                                   |         |          |
+------------------------------------------------+---------+----------+
| Meeting Costs include:                         | \       |          |
|                                                | $715.00 |          |
| Planning, Copies, Faxes,                       |         |          |
|                                                |         |          |
| FedEx, refreshments, etc.                      |         |          |
+------------------------------------------------+---------+----------+
| NCWM Publication 14 updates                    | \$4     |          |
|                                                | ,425.00 |          |
+------------------------------------------------+---------+----------+
| Staff and Admin costs to support Sector        | \$5     |          |
|                                                | ,703.00 |          |
+------------------------------------------------+---------+----------+
| NCWM Funding (2002) for Travel to Sector       | \       |          |
| Meeting                                        | $413.00 |          |
+------------------------------------------------+---------+----------+
|                                                |         |          |
+------------------------------------------------+---------+----------+
| **Total Expenses (past 12 months)**            |         | **\$11,  |
|                                                |         | 256.00** |
+------------------------------------------------+---------+----------+
|                                                |         |          |
+------------------------------------------------+---------+----------+
| **Net Income (loss)**                          |         | **(\$9,8 |
|                                                |         | 31.00)** |
+------------------------------------------------+---------+----------+

In the BOD\'s view, assignment of a single official moisture meter
dampens competition, so it is unlikely that the number of CC\'s would
ever increase to the point where Sector expenses are fully funded by CC
fees.

The BOD suggested three options to make up the GMM/NIR Sectors\' budget
shortfall:

-   **Option 1:** Determine the actual cost for NCWM to support this
    program annually and request funds from GIPSA, NIST, and the active
    NTEP Certificate holders to fund the difference between annual
    revenues and annual costs.

-   **Option 2:** Determine the actual cost, divide this equally among
    the active NTEP Certificate holders, and increase the annual renewal
    fee to cover these costs.

-   **Option 3:** Discontinue the administrative support of this device
    type under NTEP.

Options 1 and 2 received little or no support from the Sector. One
manufacturer reported that their annual costs to participate in the
program are approximately \$25,000. Citing the proposed increase in
manufacturers' costs for the on-going calibration program (from \$3,600
to \$5,300 per meter type per year), manufacturers were generally
opposed to further increases. GIPSA and NIST representatives were
skeptical that their agencies would be receptive to providing additional
monetary support to NCWM. There was general agreement that the Sectors
were within one to three meetings of being essentially \"through\" with
changes to Publication 14. As an alternative to Sector meetings, it was
suggested that NIST might host \"technical sessions\" where
manufacturers, W&M personnel, and grain industry representatives could
develop issues and recommendations to forward to the NCWM. One Sector
member questioned the costs associated with the maintenance and printing
of the GMM/NIR portion of Publication 14 noting that the material was
developed and written by the Sector. The revenue received from the sale
of this publication is less than \$500 annually. It was suggested that
it would be more economical to make the publication available at no
charge on the Internet. Ross noted that the costs of updating NCWM
Publication 14 should decrease as things become smoother in the system.
In closing, Ross stated that NCWM\'s budget for next year includes an
allowance for a GMM/NIR Sector meeting in August 2004.

**11. Time and Place for Next Meeting**

The next meeting is tentatively planned for the week of August 23, 2004
in the Kansas City, MO area. Meetings will be held in one of the meeting
rooms at the National Weather Service Training Center if available. A
tentative schedule is shown below.

> Wednesday, August 25 10:00 am - 5:00 pm GMM Sector Meeting
>
> Thursday, August 26 8:00 am - 4:00 pm NIR Grain Analyzer Sector
> Meeting

Items of interest to both Sectors will be considered in joint session
either at the end of the first day or at the beginning of the second day
depending on the final agenda.

**National Type Evaluation Technical Committee (NTETC)**

**Near Infrared (NIR) Grain Analyzer Sector**

**August 21, 2002 - Kansas City, Missouri**

**Meeting** **Summary**

Agenda:

+---+------------------------------------------------------------------+
|  | 1.  NTEP Committee Authorizes "Dual Certification"               |
+---+------------------------------------------------------------------+
|  | 2.  Recommended Changes to Publication 14 to Improve Consistency |
|   |     between GMM and NIR Checklists                               |
+---+------------------------------------------------------------------+
|  | 3.  NTETC GMM/NIR Sector Support - Response to Sector's Letter   |
|   |     to NCWM Chairman                                             |
+---+------------------------------------------------------------------+
|  | 4.  Time and Place for Next Meeting NIST/Office of Weights and   |
|   |     Measures Reorganization                                      |
+---+------------------------------------------------------------------+
|   | 5.  Report on the 2003 NCWM Annual Meeting -- NIR Grain Analyzer |
|   |     Issues                                                       |
+---+------------------------------------------------------------------+
|   | 6.  NTEP Status Report **-** Recommended Change to Publication   |
|   |     14, Table 1                                                  |
+---+------------------------------------------------------------------+
|   | 7.  Recommended Change to Publication 14 -- Accuracy             |
+---+------------------------------------------------------------------+
|   | 8.  Recommended Changes and Additions to Publication 14          |
|   |                                                                  |
|   |     a.  Additional Printed Ticket Requirements                   |
|   |                                                                  |
|   |     b.  Add Requirement for Calibrations to Be Clearly           |
|   |         Distinguished from One Another                           |
|   |                                                                  |
|   |     c.  Miscellaneous Editorial Changes                          |
+---+------------------------------------------------------------------+
|   | 9.  Forward-looking Issues                                       |
+---+------------------------------------------------------------------+
|  |                                                                  |
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| r |                                                                  |
| s |                                                                  |
+---+------------------------------------------------------------------+

**1. NTEP Committee Authorizes "Dual Certification"**

**Discussion:** The NTEP Committee reviewed the following recommendation
during the 2003 NCWM Interim Meeting in Jacksonville, FL and accepted
the Sector recommendation to issue a single Certificate of Conformance
to a device that has been evaluated using two inter-related codes.

501-7 Grain Moisture Meter (GMM) and Near Infrared (NIR) Instruments
Dual Certification

**Source**: GMM and NIR Sectors

**Recommendation**: The Sectors recommended that NCWM, Inc. authorize
issuing a single CC for devices successfully type evaluated using two
inter-related codes (e.g., a "Grain Moisture Meter CC with Near Infrared
Grain Analyzer Certification" or, simply, "NIR Grain Analyzer with Dual
Certification").

Steve Patoray, NTEP Director, outlined changes being considered for
improvements in the database that NCWM maintains for CC\'s. In the
improved database, devices would be classified first by a generic name
and then by a secondary name or descriptor. For example, devices used to
measure an attribute of grain, whether moisture or protein, would be
classified generically as \"grain analyzers.\" Proposed
subclassifications under \"grain analyzers\" are: moisture only,
moisture plus test weight, and multi-feature. A grain moisture meter
successfully evaluated under both GMM and NIR Analyzer codes would be
classified as Grain Analyzer/Multi-Feature

**2. Recommended Changes to Publication 14 to Improve Consistency
between GMM and NIR Checklists**

**Discussion:** The NTEP Laboratory has pointed out discrepancies
between the Near Infrared Grain Analyzer (NIR) and Grain Moisture Meter
(GMM) checklists in Publication 14 for several similar tests. The
following changes are suggested to improve consistency between the two
checklists, to remove ambiguity, and to correct errors.

**Conclusion**: The Sector agreed to all of the following
recommendations.

> **2.a. Power Supply Tests**
>
> **Recommendation:** Modify the Power Supply paragraphs of the "Type
> Evaluation Test Procedures and Tolerances" sections of the checklists
> for Near Infrared Grain Analyzers (NIR) and Grain Moisture Meters
> (GMM) respectively as shown below to improve consistency and to
> explicitly define the reference voltage:
>
> **NIR Checklist:**
>
> **Power Supply.** A single HRW wheat sample will be analyzed 10 times
> with the instrument operating at a voltage of 100 V. The voltage will
> be adjusted to 117 V. After 30 minutes, the HRW sample will be
> analyzed 10 times. The voltage level will then be increased to 130 V.
> After 30 minutes, the sample will be analyzed 10 more times.
>
> Changes in bias and precision will be checked. Bias is defined as the
> change in the average protein for 10 analyses made at both the
> reference and the respective test voltages.
>
> The maximum allowable bias change from the reference voltage (117 V)
> is ± 0.10. The maximum allowable standard deviation of 10 analyses
> (precision), at any of the three voltage levels, is 0.10.
>
> **GMM Checklist:**
>
> **Power Supply.** A single HRW wheat sample with a moisture content
> between 12 % and 14 % will be analyzed 10 times with the meter
> operating at a voltage of 100 V. The voltage will be adjusted to 117
> V. After 30 minutes, the HRW sample will be analyzed 10 times. The
> voltage level will then be increased to 130 V. After 30 minutes, the
> sample will be analyzed 10 more times.
>
> Changes in bias and precision will be checked. Bias is defined as the
> change in the average moisture for 10 analyses made at both the
> reference and the respective test voltages.
>
> The maximum allowable bias change from the reference voltage (117 V)
> is ± 0.20 %. The maximum allowable standard deviation of 10 analyses
> (precision) at any of the three voltage levels is 0.10 percent.
>
> **2.b. Leveling Tests**
>
> **Recommendation:** Remove the redundant first sentence of the
> Leveling Test of the NIR Checklist, and modify the wording of the
> tolerance sentence to specify that bias is calculated from the average
> of 5 readings. The proposed changes are shown below. \[**Note**: the
> Leveling Test from the GMM Checklist is shown below for reference.\]
>
> **NIR Checklist:**
>
> **Leveling**. The leveling test will be conducted for a minimum of 2
> orientations, front-to-back and left-to-right, at a tilt of 5 percent.
> Devices equipped with leveling indicators will be tested at the
> indicated limits of the level indicator rather than at a tilt of 5
> percent. Additional orientations will be tested as deemed appropriate.
>
> The maximum allowable bias shift is ± 0.10 for the average of 5
> readings.
>
> **GMM Checklist:**
>
> **Leveling**. Tests for leveling will be conducted using a single HRW
> wheat sample with a moisture content between 12percent and 14percent.
> The leveling test will be conducted for a minimum of 2 orientations,
> front-to-back and left-to-right, at a tilt of 5 percent. Meters
> equipped with leveling indicators will be tested at the indicated
> limits of the level indicator rather than at a tilt of 5 percent.
> Additional orientations will be tested as deemed appropriate.
>
> The maximum allowable bias shift is ± 0.20 percent for the average of
> 5 readings.
>
> **2.c. Warm-up Time Tests**
>
> **Recommendation**: Modify the Warm-up Time tests of the NIR and GMM
> Checklists respectively as shown below to improve consistency:
>
> **NIR Checklist:**
>
> **Warm-up Time.** The following test procedures will be used to check
> warm-up times recommended by the manufacturer. If the manufacturer
> does not recommend a warm-up time, assume that accurate results will
> be provided immediately after turning the instrument power on.
>
> The instrument will be powered off and stabilized at room temperature.
> The instrument will be powered on and after waiting the specified
> warm-up time a single wheat sample will be analyzed 5 times. After
> waiting for a period of time equal to two times the manufacturer\'s
> suggested warm-up time, the sample will be analyzed 5 more times. The
> minimum waiting period before retesting the sample is one hour. Thus,
> for an instrument where no warm-up time is specified, the sample would
> be tested immediately upon the instrument being powered on and then
> again after 1 hour.
>
> The maximum allowable bias shift is ± 0.10 for the average of 5
> readings.
>
> **GMM Checklist:**
>
> **Warm-up Time.** The following test procedures will be used to check
> warm-up times recommended by the manufacturer. If the manufacturer
> does not recommend a warm-up time, assume that accurate results will
> be provided immediately after turning the instrument power on.
>
> The instrument will be powered off and stabilized at room temperature.
> The instrument will be powered on and after waiting the specified
> warm-up time, a single wheat sample (12%-14% moisture content) will be
> analyzed 5 times. After waiting for a period of time equal to two
> times the manufacturer\'s suggested warm-up time, the sample will be
> analyzed 5 more times. The minimum waiting period before retesting the
> sample is one hour. Thus, for an instrument where no warm-up time is
> specified, the sample would be tested immediately upon the instrument
> being powered on and then again after 1 hour.
>
> The maximum allowable bias shift is ± 0.20 percent for the average of
> 5 readings.
>
> **2.d. Sample Temperature Sensitivity Test**
>
> **Recommendation:** Modify the first paragraph of the Sample
> Temperature Sensitivity Tests of the NIR and GMM Checklists
> respectively, as shown below, to improve consistency, to clarify the
> meaning, and to correct an error in the GMM checklist:
>
> **NIR Checklist:**
>
> **II. Sample Temperature Sensitivity.**
>
> Testing is required to verify that accurate results are provided when
> the sample and instrument are at different temperatures. This will be
> referred to as the sample temperature sensitivity test. Tests will be
> conducted with the instrument at room temperature and the sample
> temperature varying from room temperature plus ∆T~H~ to room
> temperature minus ∆T~C~, where ∆T~H~ is the magnitude of the
> manufacturer-specified maximum difference for grain above room
> temperature, and ∆T~C~ is the magnitude of the manufacturer-specified
> maximum difference for grain below room temperature. In no case will
> room temperature plus ∆T~H~ be allowed to exceed 45 °C, but ∆T~H~ need
> not equal ∆T~C~. For purposes of these tests, room temperature will be
> defined as 22 ^o^C ± 2 ^o^C.
>
> **GMM Checklist:**
>
> **II. Sample Temperature Sensitivity:**
>
> Testing is required to verify that accurate results are provided when
> the sample and instrument are at different temperatures. This will be
> referred to as the sample temperature sensitivity test. The sample
> temperature sensitivity test will be conducted using corn, HRW wheat,
> and soybean samples. Tests will be conducted with the instrument at
> room temperature and the sample temperature varying from room
> temperature plus ∆T~H~ to room temperature minus ∆T~C~, where ∆T~H~ is
> the magnitude of the manufacturer specified maximum difference for
> grain above room temperature and ∆T~C~ is the magnitude of the
> manufacturer specified maximum difference for grain below room
> temperature. In no case will room temperature plus ∆T~H~ be allowed to
> exceed 45 °C, but ∆T~H~ need not equal ∆T~C~. For purposes of these
> tests, room temperature will be defined as 22 ^o^C ± 2 ^o^C

**3. NTETC GMM/NIR Sector Support - Response to Sector's Letter to NCWM
Chairman**

**Background**: At the August 2002 meeting of the GMM and NIR Sectors,
Don Onwiler, Nebraska Department of Agriculture, Division of Weights &
Measures, representing the NCWM Board of Directors (BOD), informed the
Sectors that the BOD believes that the major work of the GMM & NIR
Sectors has been completed. The BOD questioned whether annual Sector
meetings would be required in the future. Don pointed out that the GMM
Sector contributes only \$500 annually to NTEP. The BOD calculates the
total staff costs associated with the GMM/NIR Sector is about \$15,000.
In an effort to reduce costs, the BOD has decided that public members
will no longer receive funding for travel to attend the GMM/NIR Sector
meetings.

The information that Don presented at the Sector meeting raised concerns
among the sector members with the direction that NCWM, Inc. seems to be
taking with regard to the GMM and NIR Sectors. Because of these
concerns, Sector Chairman, Cassie Eigenmann-Pierson, DICKEY-john Corp.,
was urged to send a letter to Ross Andersen, NCWM BOD Chairman, to
express the Sector's concerns, to request a breakdown of actual recent
GMM/NIR Sector meeting costs, and to seek continued NCWM, Inc. support
of future meetings. The letter was drafted and sent to Mr. Andersen in
October 2002.

**Discussion:** Ross Anderson, NCWM Chairman, appeared at the Sector\'s
August 2003 meeting to respond in person to the Sector\'s letter and to
obtain feedback for the BOD to use in future planning. Ross said that
the board understands the importance to commerce and the complexity of
issues related to grain moisture meters and NIR grain analyzers. Equity
in the system is a concern. He noted that the Sector\'s discussions
relating to lack of alignment among meters seemed to indicate that the
system was not resulting in the kind of equity expected. He recognized
the importance of the Sector\'s work on standards, stating that when
proper standards are met, the system will have uniformity.
Unfortunately, the costs of supporting the Sector\'s activities exceed
the income provided by the Sector. According to Ross, GMM/NIR Income and
Expenses for the past 12 months resulted in a net loss of \$9,831 as
detailed below:

+------------------------------------------------+---------+----------+
| **Income**                                     |         |          |
+------------------------------------------------+---------+----------+
| based on five active CC\'s                     |         | **\$1,   |
|                                                |         | 425.00** |
+------------------------------------------------+---------+----------+
|                                                |         |          |
+------------------------------------------------+---------+----------+
| **Expenses**                                   |         |          |
+------------------------------------------------+---------+----------+
| Meeting Costs include:                         | \       |          |
|                                                | $715.00 |          |
| Planning, Copies, Faxes,                       |         |          |
|                                                |         |          |
| FedEx, refreshments, etc.                      |         |          |
+------------------------------------------------+---------+----------+
| NCWM Publication 14 updates                    | \$4     |          |
|                                                | ,425.00 |          |
+------------------------------------------------+---------+----------+
| Staff and Admin costs to support Sector        | \$5     |          |
|                                                | ,703.00 |          |
+------------------------------------------------+---------+----------+
| NCWM Funding (2002) for Travel to Sector       | \       |          |
| Meeting                                        | $413.00 |          |
+------------------------------------------------+---------+----------+
|                                                |         |          |
+------------------------------------------------+---------+----------+
| **Total Expenses (past 12 months)**            |         | **\$11,  |
|                                                |         | 256.00** |
+------------------------------------------------+---------+----------+
|                                                |         |          |
+------------------------------------------------+---------+----------+
| **Net Income (loss)**                          |         | **(\$9,8 |
|                                                |         | 31.00)** |
+------------------------------------------------+---------+----------+

In the BOD\'s view, assignment of a single official moisture meter
dampens competition, so it is unlikely that the number of CC\'s would
ever increase to the point where Sector expenses are fully funded by CC
fees.

The BOD suggested three options to make up the GMM/NIR Sectors\' budget
shortfall:

-   **Option 1:** Determine the actual cost for NCWM to support this
    program annually and request funds from GIPSA, NIST, and the active
    NTEP Certificate holders to fund the difference between annual
    revenues and annual costs.

-   **Option 2:** Determine the actual cost, divide this equally among
    the active NTEP Certificate holders, and increase the annual renewal
    fee to cover these costs.

-   **Option 3:** Discontinue the administrative support of this device
    type under NTEP.

Options 1 and 2 received little or no support from the Sector. One
manufacturer reported that their annual costs to participate in the
program are approximately \$25,000. Citing the proposed increase in
manufacturers' costs for the on-going calibration program (from \$3,600
to \$5,300 per meter type per year), manufacturers were generally
opposed to further increases. GIPSA and NIST representatives were
skeptical that their agencies would be receptive to providing additional
monetary support to NCWM. There was general agreement that the Sectors
were within one to three meetings of being essentially \"through\" with
changes to Publication 14. As an alternative to Sector meetings, it was
suggested that NIST might host \"technical sessions\" where
manufacturers, W&M personnel, and grain industry representatives could
develop issues and recommendations to forward to the NCWM. One Sector
member questioned the costs associated with the maintenance and printing
of the GMM/NIR portion of Publication 14 noting that the material was
developed and written by the Sector. The revenue received from the sale
of this publication is less than \$500 annually. It was suggested that
it would be more economical to make the publication available at no
charge on the Internet. Ross noted that the costs of updating NCWM
Publication 14 should decrease as things become smoother in the system.
In closing, Ross stated that NCWM\'s budget for next year includes an
allowance for a GMM/NIR Sector meeting in August 2004.

**4. Time and Place for Next Meeting**

The next meeting is tentatively planned for the week of August 23, 2004
in the Kansas City, MO area. Meetings will be held in one of the meeting
rooms at the National Weather Service Training Center if available. A
tentative schedule is shown below.

> Wednesday, August 25 10:00 a.m. - 5:00 p.m. GMM Sector Meeting
>
> Thursday, August 26 8:00 a.m. - 4:00 p.m. NIR Grain Analyzer Sector
> Meeting

Items of interest to both Sectors will be considered in joint session
either at the end of the first day or at the beginning of the second day
depending on the final agenda.

**5. Report on the 2003 NCWM Interim and Annual Meetings**

**Background**: Two items of interest to the NIR Sector were reviewed by
the Committee on Specifications and Tolerances (S&T) at the NCWM Interim
Meeting January 12-15, 2003:

> 357-1 S.1.1. Digital Indications and Recording Elements
>
> **Source**: NIR Sector
>
> **Recommendation**: Amend paragraph S.1.1. (c) of the NIR Analyzer
> Code to include specifications for recording the "native" constituent
> value and moisture value along with the converted results and the
> manually entered moisture basis; amend paragraph S.1.1.(e) to
> recognize the need for moisture basis in determining the constituent
> mass; and add new paragraph S.1.1. (h) to include a specification that
> requires the printed information be arranged in a consistent and
> unambiguous manner.
>
> 357-2 S.1.2. Selecting Grain Class and Constituent
>
> **Source**: Carryover Item 357-1B (This item originated from the
> National Type Evaluation Technical Committee (NTETC) Near Infrared
> Grain Analyzer (NIR) Sector and first appeared on the Committee's 2002
> agenda.)
>
> **Recommendation**: Add new text to paragraph S.1.2. of the NIR
> Analyzer Code to address specialty crop transactions where industry is
> concerned about the proprietary nature of calibration information.
> This is the same wording recommended by the S&T Committee in the 2002
> NCWM S&T Agenda Item 357-1B.

The S&T Committee forwarded these items as voting items for the 2003
Annual Meeting. For additional background refer to *Committee Reports
for the 88^th^ Annual Meeting,* NCWM Publication 16, April 2003.

**Discussion:** At the 88^th^ Annual Meeting held July 13 -- 18, 2003
the Conference voted to accept **Agenda Item 357-1** and **Agenda Item
357-2**. In a comment on Agenda Item 357-1, the NIST Weights and
Measures Division recommended adding a definition for \"native moisture
basis.\" The Sector noted that a definition for \"native moisture
basis\" already appears in §A.3 of the NIR Code:

> **A.3. Calibrations. -** The National Type Evaluation Program
> Certificate of Conformance (CC) shall indicate the native moisture
> basis of each calibration. The \"native\" moisture basis is the
> default moisture basis of the sealable constituent calibration (or
> constituent calibration pair when a non‑displayed moisture calibration
> is also involved).

**6. NTEP Status Report - Recommended Change to Publication 14, Table
1**

**Background:** At the 87^th^ Annual Meeting held July 14 -- 18, 2002
the Conference voted to accept **Agenda Item 357-1A**, elevating the
Near Infrared Grain Analyzer Code to permanent status, effective January
1, 2003. At its August 2002 meeting, the NIR Grain Analyzer Sector
recommended significant changes to the NIR checklist of Publication 14,
agreeing on tolerance values for sample temperature sensitivity,
accuracy, precision, and reproducibility tests for barley protein; corn
protein, oil, and starch; and soybean protein and oil \[wheat protein
tolerances had been approved at an earlier meeting\]. A number of
editorial changes were also agreed upon. The NTEP Committee, at the
January 2003 NCWM Interim Meeting in Jacksonville, FL, accepted the
Sector's recommendations. The recommendations were published in the 2003
Edition of Publication 14 paving the way for the NTEP laboratory to
accept NIR Grain Analyzer instruments for type evaluation testing.

**Discussion:** Cathy Brenner, Grain Inspection, Processors and
Stockyards Administration (GIPSA), NTEP Participating Laboratory for NIR
Grain Analyzers, reported that one application had been received for
type evaluation testing. She also reported that restrictive sample set
requirements have made it difficult to assemble the necessary samples
for testing, even where sample re-wetting is allowed. Sample selection
has been especially difficult where multiple constituents are involved
for a single product. Of particular concern is the Sample Temperature
Sensitivity Test, which requires two sample sets for each grain type
representing the low and high moisture ranges shown in Table 1 -
Constituent Ranges for Type Evaluation. Each moisture set, in turn,
consists of three samples, one from each of three constituent
concentration ranges (the upper third, the middle third, and the lower
third of the constituent concentration range for the grain type). Cathy
suggested that the moisture ranges in Table 1 be expanded.

**Conclusion/Recommendation:** To facilitate sample selection for
testing, the Sector accepted, by consensus, the recommended changes
widening the low and high moisture ranges in Table 1 of the NIR
Checklist in Publication 14 as shown below:

  -----------------------------------------------------------------------------
  **Table 1.                                                        
  Constituent Ranges                                                
  for Type                                                          
  Evaluation**                                                      
  ------------------- ------------- ------------------- ----------- -----------
  Grain Type          Constituent   Constituent Range   Low         High
                                    (%) at Moisture     Moisture    Moisture
                                    Basis (M.B.) Shown  Range       Range

  Durum Wheat         Protein       10 - 18 at 12% M.B. 10% - 12%   13% - 15%

  Hard Red Spring     Protein       10 - 19 at 12% M.B.             
  Wheat                                                             

  Hard Red Winter     Protein       8 - 18 at 12% M.B.              
  Wheat                                                             

  Hard White Wheat    Protein       9 - 16 at 12% M.B.              

  Soft Red Winter     Protein       9 - 12 at 12% M.B.              
  Wheat                                                             

  Soft White Wheat    Protein       8 - 15 at 12% M.B.              

  \"All Class\" Wheat Protein       8 - 19 at 12% M.B.              
  Calibration                                                       

  Two-rowed Barley    Protein       8 - 17 at 0% M.B.   10% - 12%   13% - 15%

  Six-rowed Barley    Protein       8 - 17 at 0% M.B.               

  \"All Class\"       Protein       8 - 17 at 0% M.B.   10% - 12%   13% - 15%
  Barley Calibration                                                

  Corn                Protein       8 - 12 at 0% M.B.   11% - 13%   14% - 16%

                      Oil           3 - 9 at 0% M.B.                

                      Starch        67 - 73 at 0% M.B               

  Soybeans            Protein       30 - 40% at 13%     10% - 12%   13% - 15%
                                    M.B.                            

                      Oil           16 - 21% at 13%                 
                                    M.B.                            
  -----------------------------------------------------------------------------

**7. Recommended Change to Publication 14 - Accuracy**

**Discussion:** In the NIR Checklist in the 2003 Edition of Publication
14 there is a discrepancy between the text describing how accuracy is to
be computed and the definitions for the parameters used in calculating
accuracy. The text states, "The first replicate for each sample will be
used to calculate the Standard Error of Performance (SEP) for each
instrument with respect to the reference method." In contrast, the
parameter *x*~i~ used in the calculation of SEP is defined as the
*average* predicted concentration of the three replicates of each
sample. In the June 2000 issue of Publication 14, both text and
equations for calculating SEP are in agreement. The definitions of
*x*~i~ and *y*~i~ in the NIR Checklist were mistakenly changed to agree
with the definitions used in the GMM Checklist during editing of other
changes in the NIR Checklist in preparation for the Sector's previous
meeting.

**Recommendation:** The Sector recommended changing the Accuracy
equations of the NIR Checklist of Publication 14 as shown below to agree
with the text, which specifies that the SEP is calculated using only the
first replicate of each sample. \[Editor's Note: Changes/additions to
the equations have NOT been highlighted or underlined. The MS
change-tracking feature does not mark changes or additions made using MS
Equation Editor.\]

**Accuracy.** The first replicate for each sample will be used to
calculate the Standard Error of Performance (SEP) for each instrument
with respect to the reference method. Each instrument will be tested
individually.

where,
$\text{SEP} = \sqrt{\frac{\sum_{i = 1}^{n}{(yi - \overline{y})^{2}}}{n - 1}}$

> ${\overline{x}}_{i}$$x_{i}$= predicted constituent concentration for
> the first replicate of sample *i*
>
> $r_{i}$ = reference constituent concentration for sample *i*
>
> $y_{i} = {\overline{x}}_{i} - r_{i}$ $y_{i} = x_{i} - r_{i}$
>
> $\overline{y}$ = average of $y_{i}$
>
> $n$ = number of samples in the test set for the constituent
> calibration being evaluated
>
> ($n$ = 50, see Note 1 below regarding \"all class\" calibrations.)

8.  **Recommended Changes and Additions to Publication 14**

> **Conclusions:** The Sector agreed to the following changes to the
> checklist section of the NIR Grain Analyzer portion of NCWM
> Publication 14 to reflect recent additions/changes to NIST Handbook
> 44, Section 5.57. Near-Infrared Gain Analyzers. The Sector also agreed
> to the editorial changes discussed in Agenda Item 8.c.
>
> **8.a. Additional Printed Ticket Requirements**
>
> **Recommendation**: Change the NIR Grain Analyzer Checklist section of
> Publication 14 as shown below to reflect changes to NIST Handbook 44,
> Code Section S.1.1. (e) and the addition of Code Section S.1.1. (h).
> adopted at the 2003 NCWM Annual Meeting.

  ------------- ------------------ ------------------------------------------ ----------------
  Code                                                                        
  Reference:                                                                  
  S.1.1.                                                                      
  Digital                                                                     
  Indications                                                                 
  and Recording                                                               
  Elements                                                                    

  3.1.          The analyzer shall                                            Yes No NA
                be equipped with a                                            
                digital indicating                                            
                element.                                                      

  3.2.          The minimum height                                            Yes No NA
                for digits used to                                            
                display moisture                                              
                is 10 mm.                                                     

  3.3.          The analyzer is                                               Yes No NA
                equipped with a                                               
                communications                                                
                interface that                                                
                permits                                                       
                interfacing with a                                            
                recording element                                             
                and can transmit                                              
                the date, grain                                               
                type or class,                                                
                constituent                                                   
                values, the                                                   
                moisture basis for                                            
                each constituent                                              
                value (except                                                 
                moisture), and                                                
                calibration                                                   
                version                                                       
                identification.                                               
                The printed ticket                                            
                includes the                                                  
                "native"                                                      
                concentration and                                             
                moisture basis in                                             
                addition to the                                               
                converted results                                             
                and the manually                                              
                entered moisture                                              
                basis, if the                                                 
                analyzer is able                                              
                to convert                                                    
                constituent                                                   
                results to a                                                  
                manually entered                                              
                moisture basis.                                               

  3.4.          A digital                                                     Yes No NA
                indicating element                                            
                shall not display,                                            
                and recording                                                 
                element shall not                                             
                record, any                                                   
                constituent value                                             
                before the end of                                             
                the measurement                                               
                cycle.                                                        

  3.5.          Constituent                                                   Yes No NA
                content is                                                    
                recorded and                                                  
                displayed as a                                                
                percent of total                                              
                mass at the                                                   
                specified moisture                                            
                basis. The                                                    
                moisture basis is                                             
                also displayed and                                            
                recorded for each                                             
                constituent                                                   
                content result                                                
                (except moisture).                                            

                3.5.1.             If a whole grain analyzer that is          
                                   calibrated to display results on an "as    
                                   is" moisture basis does NOT display or     
                                   record a moisture value, it clearly        
                                   indicates that results are expressed on an 
                                   "as is" moisture basis.                    

                3.5.2.             Ground grain analyzers must ALWAYS display 
                                   and record a moisture measurement for "as  
                                   is" content results (except moisture).     

  3.6.          Digital and                                                   Yes No NA
                recording elements                                            
                shall not display                                             
                or record any                                                 
                constituent values                                            
                beyond the                                                    
                operating range of                                            
                the device unless                                             
                the constituent                                               
                value                                                         
                representation                                                
                includes a clear                                              
                error indication                                              
                (and recorded                                                 
                error message with                                            
                the recorded                                                  
                representation).                                              

  3.7           If an NIR analyzer                                            Yes No NA
                is used to                                                    
                determine a                                                   
                moisture value,                                               
                either to                                                     
                determine the                                                 
                moisture of an                                                
                \"as is\"                                                     
                constituent                                                   
                content                                                       
                measurement or to                                             
                convert from one                                              
                moisture basis to                                             
                another, the                                                  
                moisture                                                      
                measurement must                                              
                be concurrent with                                            
                the measurement of                                            
                other                                                         
                constituents.                                                 

  3.8           The information                                               Yes No NA
                appearing on                                                  
                printouts of                                                  
                analyzers with                                                
                built--in printers                                            
                or accessory                                                  
                printers is                                                   
                arranged in a                                                 
                consistent and                                                
                unambiguous                                                   
                manner.                                                       
  ------------- ------------------ ------------------------------------------ ----------------

> **8.b. Add Requirement for Calibrations to Be Clearly Distinguished
> from One Another**
>
> **Recommendation**: Add wording to the NIR Grain Analyzer Checklist
> section of Publication 14 as shown below to reflect changes to NIST
> Handbook 44, Code Section S.1.2. adopted at the NCWM 2003 Annual
> Meeting.

  ------------- ------------------------------------------------- ----------------
  Code                                                            
  Reference:                                                      
  S.1.2.                                                          
  Selecting                                                       
  Grain Class                                                     
  and                                                             
  Constituent                                                     

  3.9.          The means to select the kind and class of grain   Yes No NA
                type or class and constituent(s) shall be readily 
                visible and the type or class of grain and        
                constituents selected shall be clearly and        
                definitely identified in letters (such as HRWW,   
                HRWS, SWW, etc. or PROT, etc.) or with symbols    
                clearly defined adjacent to the display. The      
                device shall be capable of indicating grain type  
                using a minimum of four characters. Calibrations  
                are clearly distinguished from one another, if    
                more than one calibration is included for a given 
                grain type.                                       
  ------------- ------------------------------------------------- ----------------

> **8.c. Miscellaneous Editorial Changes**
>
> **Discussion:** Much of the NIR Grain Analyzer Checklist was developed
> by editing and modifying portions of the GMM Checklist. A review of
> the 2003 edition of the NIR Grain Analyzer Checklist revealed several
> instances where the word "moisture" was either not replaced by
> "protein" or "constituent" or "constituent value" or was not deleted.
> The changes proposed below are to correct this oversight.
>
> **Recommendations:**
>
> **8.c.1.** Replace "moisture" with "protein" in the last sentence of
> the Instrument Temperature Sensitivity Test as shown:
>
> The maximum allowable protein bias will be ± 0.35 from the average
> protein measured at 22 °C.
>
> **8.c.2.** Delete the word "moisture" from the paragraph referring to
> remote displays in Section 1. General.
>
> **1. General**
>
> **Code Reference: G-S.1. Identification**
>
> As a practical matter, remote displays are not required to have serial
> numbers because they typically only repeat the information received
> from the measuring element. Similarly, external printers are not
> required to have serial numbers because they do not alter the
> information received from the measuring element.
>
> **8.c.3.** Replace "moisture" with "constituent values" in NIR
> Checklist item 3.2. as shown:

  ------ ------------------------------------------------- ----------------
  3.2.   The minimum height for digits used to display     Yes No NA
         constituent values is 10 mm.                      

  ------ ------------------------------------------------- ----------------

> **8.c.4.** Replace "moisture" with "constituent" in NIR Checklist item
> 3.9. as shown:

  ----- ------------------------------------------------- ----------------
  3.9   An analyzer shall automatically and clearly       Yes No NA
        indicate when the constituent content operating   
        range has been exceeded. Analyzers shall not      
        display a constituent result when operating       
        temperature ranges are exceeded. In both          
        instances, a clear error indication is required.  
        A 5 °C tolerance is applied to temperature ranges 
        when testing to verify that constituent results   
        are not displayed or printed when the temperature 
        range is exceeded.                                

  ----- ------------------------------------------------- ----------------

> **8.c.5.** Replace "moisture" with "constituent" and re-number items
> under **Code Reference: S.4. Operating Instructions and Use
> Limitations** as shown below:

+----+-----+-----------------------------------------+---------------+
| ** |     |                                         |               |
| Co |     |                                         |               |
| de |     |                                         |               |
| Re |     |                                         |               |
| fe |     |                                         |               |
| re |     |                                         |               |
| nc |     |                                         |               |
| e: |     |                                         |               |
| S. |     |                                         |               |
| 4. |     |                                         |               |
| O  |     |                                         |               |
| pe |     |                                         |               |
| ra |     |                                         |               |
| ti |     |                                         |               |
| ng |     |                                         |               |
| In |     |                                         |               |
| st |     |                                         |               |
| ru |     |                                         |               |
| ct |     |                                         |               |
| io |     |                                         |               |
| ns |     |                                         |               |
| a  |     |                                         |               |
| nd |     |                                         |               |
| U  |     |                                         |               |
| se |     |                                         |               |
| L  |     |                                         |               |
| im |     |                                         |               |
| it |     |                                         |               |
| at |     |                                         |               |
| io |     |                                         |               |
| ns |     |                                         |               |
| ** |     |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 4  | Ope |                                         | Yes No NA     |
| .1 | rat |                                         |               |
| 3. | ing |                                         |               |
|    | ins |                                         |               |
|    | tru |                                         |               |
|    | cti |                                         |               |
|    | ons |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | be  |                                         |               |
|    | fur |                                         |               |
|    | nis |                                         |               |
|    | hed |                                         |               |
|    | by  |                                         |               |
|    | the |                                         |               |
|    | man |                                         |               |
|    | ufa |                                         |               |
|    | ctu |                                         |               |
|    | rer |                                         |               |
|    | w   |                                         |               |
|    | ith |                                         |               |
|    | e   |                                         |               |
|    | ach |                                         |               |
|    | d   |                                         |               |
|    | evi |                                         |               |
|    | ce. |                                         |               |
|    | Co  |                                         |               |
|    | mpl |                                         |               |
|    | ete |                                         |               |
|    | in  |                                         |               |
|    | for |                                         |               |
|    | mat |                                         |               |
|    | ion |                                         |               |
|    | c   |                                         |               |
|    | onc |                                         |               |
|    | ern |                                         |               |
|    | ing |                                         |               |
|    | the |                                         |               |
|    | acc |                                         |               |
|    | ura |                                         |               |
|    | cy, |                                         |               |
|    | sen |                                         |               |
|    | sit |                                         |               |
|    | ivi |                                         |               |
|    | ty, |                                         |               |
|    | and |                                         |               |
|    | use |                                         |               |
|    | of  |                                         |               |
|    | acc |                                         |               |
|    | ess |                                         |               |
|    | ory |                                         |               |
|    | equ |                                         |               |
|    | ipm |                                         |               |
|    | ent |                                         |               |
|    | nec |                                         |               |
|    | ess |                                         |               |
|    | ary |                                         |               |
|    | in  |                                         |               |
|    | obt |                                         |               |
|    | ain |                                         |               |
|    | ing |                                         |               |
|    | a   |                                         |               |
|    | co  |                                         |               |
|    | nst |                                         |               |
|    | itu |                                         |               |
|    | ent |                                         |               |
|    | c   |                                         |               |
|    | ont |                                         |               |
|    | ent |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | be  |                                         |               |
|    | inc |                                         |               |
|    | lud |                                         |               |
|    | ed. |                                         |               |
|    |     |                                         |               |
|    | In  |                                         |               |
|    | add |                                         |               |
|    | iti |                                         |               |
|    | on, |                                         |               |
|    | ope |                                         |               |
|    | rat |                                         |               |
|    | ing |                                         |               |
|    | ins |                                         |               |
|    | tru |                                         |               |
|    | cti |                                         |               |
|    | ons |                                         |               |
|    | sh  |                                         |               |
|    | all |                                         |               |
|    | i   |                                         |               |
|    | ncl |                                         |               |
|    | ude |                                         |               |
|    | the |                                         |               |
|    | fol |                                         |               |
|    | low |                                         |               |
|    | ing |                                         |               |
|    | inf |                                         |               |
|    | orm |                                         |               |
|    | ati |                                         |               |
|    | on: |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | 4   | Name and address or trademark of the    | Yes No NA     |
|    | .13 | manufacturer.                           |               |
|    | .1. |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | 4   | The type or design of the device with   | Yes No NA     |
|    | .13 | which it is intended to be used.        |               |
|    | .2. |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | 4   | Date of issue.                          | Yes No NA     |
|    | .13 |                                         |               |
|    | .3. |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | 4   | The kind or classes of grain or seed    | Yes No NA     |
|    | .13 | for which the device is designed to     |               |
|    | .4. | measure constituent content.            |               |
+----+-----+-----------------------------------------+---------------+
|    | 4   | The limitations of use (e.g.,           | Yes No NA     |
|    | .13 | constituent measurement range, grain or |               |
|    | .5. | seed temperature, kind or class of      |               |
|    |     | grain or seed, instrument temperature,  |               |
|    |     | voltage and frequency ranges,           |               |
|    |     | electromagnetic interferences, and      |               |
|    |     | necessary accessory equipment).         |               |
+----+-----+-----------------------------------------+---------------+
|    | 4   | The appropriate user selectable options | Yes No NA     |
|    | .13 | or settings for each calibration        |               |
|    | .6. | installed in the device.                |               |
+----+-----+-----------------------------------------+---------------+

**9. Forward-looking Issues**

**Discussion**: Grain handling companies with multiple operating
locations are increasingly interested in networking their NIR
instruments to monitor performance, to ensure uniformity, and to
facilitate simultaneous updating of calibration changes. The simplest
networked systems utilize conventional NIR Grain Analyzer instruments
with remote communication capability. When the CC holder issues new
calibrations, they are transmitted simultaneously to all networked
instruments. Type evaluation and field inspection of such devices can be
identical to non-networked analyzers. Dr. Charles Hurburgh, Jr.,
Agricultural & Biosystems Engineering, Iowa State University, briefed
the Sector on several emerging technologies with system configurations
that may require new approaches to type evaluation and field inspection.

No resident calibration -- For each sample measured, the instrument
performs a local regression and develops a one-time-use calibration
utilizing a \"live\" calibration database maintained off-site by an
independent data service company. New calibration samples are added to
the calibration database from time to time to make it more universally
applicable.

All calculations performed off-site -- The local instrument obtains
optical data on the sample to be measured. Optical data is transmitted
to an off-site computer that calculates the result and transmits the
result back to the local instrument for display and print out. The
off-site computer may use either a standard calibration or may develop a
one-time-use calibration for each measurement as described above.

In both of the examples cited, the off-site data bank and computer may
or may not be in the same jurisdiction as the local instrument.

On the surface, field inspection using standard samples would seem to be
straightforward. However, with no fixed calibration on the local
instrument and a changing database, the inspector has no way to insure
that the instrument will give the same result the next day, the next
month, or at any time in the future. As a partial solution, the
instrument could be required to have the ability to query the remote
computer and display the version number of the calibration algorithm and
perhaps a database issue date. Similarly, type evaluation accuracy tests
and sample temperature sensitivity tests, which are calibration
dependent, could be verified at only one point in time with no assurance
that acceptable results would be obtained at any future time. Type
evaluation would seem to require not only a test of the instrument\'s
hardware, but also an evaluation of the calibration algorithm. If a
\"live\" database is involved, evaluation becomes even more problematic.
If the database can affect the indicated value, it would seem that the
database is a metrologically significant element in the system. Even if
the integrity of the database could be assured by an audited quality
system, determining the effect of the introduction of new samples on the
performance of the instrument under type evaluation conditions would
seem to require re-testing every time new calibration samples are added
to the database.

**Conclusion**: The Sector took no action on this issue

####### Appendix C

**National Type Evaluation Technical Committee**

**Measuring Sector Annual Meeting Summary**

**October 3 - 4, 2003, Charlotte, North Carolina**

1\. Recommendations to Update to NCWM Publication 14 to Reflect Changes
to NIST Handbook 44
[2](#recommendations-to-update-to-ncwm-publication-14-to-reflect-changes-to-nist-handbook-44)

2\. Testing Required for an Electronic Indicator with a CC Interfaced
with a Measuring Element with\
a CC not Previously Evaluated Together (Carry-Over Item)
[7](#testing-required-for-an-electronic-indicator-with-a-cc-interfaced-with-a-measuring-element-with-a-cc-not-previously-evaluated-together-carry-over-item)

3\. On-Screen Display of G.S.1. Requirements for Software-Based
Built-for-Purpose Devices\
(New Item)
[12](#on-screen-display-of-g.s.1.-requirements-for-software-based-built-for-purpose-devices-new-item)

4\. Tolerance for Product Depletion Test (Carry-Over Item)
[15](#tolerance-for-product-depletion-test-carry-over-item)

5\. Marking of Meters that have no External Moving Parts - UR.2.5.
Product Identification\
(Carry-Over Item)
[19](#marking-of-meters-that-have-no-external-moving-parts---ur.2.5.-product-identification-carry-over-item)

6\. Multiple Measuring Elements with a Single Provision for Sealing
(Carry-Over Item)
[20](#multiple-measuring-elements-with-a-single-provision-for-sealing-carry-over-item)

7\. Update LMD Section of Publication 14, NTEP Laboratory
Recommendations for Changes to NCWM\
Publication 14 (New Item)
[21](#update-lmd-section-of-publication-14-ntep-laboratory-recommendations-for-changes-to-ncwm-publication-14-new-item)

8\. Uniform Tolerances for the Same Accuracy Class Device in all LMD
Codes (New Item)
[34](#uniform-tolerances-for-the-same-accuracy-class-device-in-all-lmd-codes-new-item)

9\. S.4.4.2. Location of Marking Information; Retail Motor-Fuel
Dispensers (New Item)
[35](#s.4.4.2.-location-of-marking-information-retail-motor-fuel-dispensers-new-item)

10\. Product Family Tables for MAG Meters (Carry-Over Item)
[36](#product-family-tables-for-mag-meters-carry-over-item)

11\. Use of Discount and Loyalty Cards and Discounts for Actions After
the Completion of a Retail\
Motor-Fuel Delivery (Carry-Over Item)
[37](#use-of-discount-and-loyalty-cards-and-discounts-for-actions-after-the-completion-of-a-retail-motor-fuel-delivery-carry-over-item)

12\. Test Criteria for CNG Dispensers in Publication 14 (New Item)
[37](#test-criteria-for-cng-dispensers-in-publication-14-new-item)

13\. Acceptable Symbols or Wording to Identify Unit Price, Total Price,
and Quantity on a Retail\
Motor-Fuel Dispenser (Carry-Over Item)
[40](#acceptable-symbols-or-wording-to-identify-unit-price-total-price-and-quantity-on-a-retail-motor-fuel-dispenser-carry-over-item)

14\. Remove Section 3.37. Mass Flow Meters from Handbook 44 and
Assimilate Relevant Sections\
into Other Codes (New Item)
[40](#remove-section-3.37.-mass-flow-meters-from-handbook-44-and-assimilate-relevant-sections-into-other-codes-new-item)

15\. Reports of Work Groups (New Item)
[41](#reports-of-work-groups-new-item)

16\. Next Meeting [42](#next-meeting)

## 1. Recommendations to Update to NCWM Publication 14 to Reflect Changes to NIST Handbook 44

**Source:** NIST/WMD

**Background:** The 88^th^ National Conference on Weights and Measures
(NCWM) adopted the following items that will be reflected in the 2004
Edition of NIST Handbook 44 and NCWM Publication 14. These agenda items
are to inform the Measuring Sector of the NCWM actions and recommend
changes to NCWM Publication 14.

**Recommendation:** The Sector reviewed the following recommended
changes to Publication 14 based on changes to NIST Handbook 44:

> **A. G-S.1. Identification**
>
> During its 2003 Annual Meeting, the NCWM agreed to amend Handbook 44
> General Code paragraph G-S.1. Identification as follows:
>
> **G-S.1. Identification.** **- All equipment, except weights and
> separate parts necessary to the measurement process, but not having
> any metrological effect, shall be clearly and permanently marked for
> the purposes of identification with the following information:**
>
> **(a) the name, initials, or trademark of the manufacturer or
> distributor;**
>
> **(b) a model designation that positively identifies the pattern or
> design of the device;**
>
> **(c) the model designation shall be prefaced by the term \"Model,\"
> \"Type,\" or \"Pattern.\" These terms may be followed by the term
> \"Number\" or an abbreviation of that word. The abbreviation for the
> word \"Number\" shall, as a minimum, begin with the letter \"N\"
> (e.g., No or No.). The abbreviation for the word "Model" shall be
> "Mod" or "Mod."**
>
> ***\[Nonretroactive as of January 1, 2003\]***
>
> **(Added 2000) (Amended 2001)**
>
> ***\[Note: Prefix lettering may be initial capitals, all capitals or
> all lower case.\]***
>
> ***(d) except for equipment with no moving or electronic component
> parts [and not- built‑for‑purpose, software-based
> devices]{.underline}, a nonrepetitive serial number;***
>
> ***\[Nonretroactive as of January 1, 1968\]***

(e) ***[for not-built-for-purpose, software-based devices the current
    software version designation;]{.underline}***

> **[(f)]{.underline}~~(e)~~ the serial number shall be prefaced by
> words, an abbreviation, or a symbol that clearly identifies the number
> as the required serial number; and**
>
> ***\[Nonretroactive as of January 1, 1986\]***
>
> ***[(g)]{.underline}~~(f)~~ the serial number shall be prefaced by the
> words \"Serial Number\" or an abbreviation of that term. Abbreviations
> for the word \"Serial\" shall, as a minimum, begin with the letter
> \"S,\" and abbreviations for the word \"Number\" shall, as a minimum,
> begin with the letter \"N\" (e.g., S/N, SN, Ser. No, and S No.).***
>
> ***\[Nonretroactive as of January 1, 2001\]***
>
> ***[(h)]{.underline}~~(g)~~ For devices that have an NTEP Certificate
> of Conformance (CC) Number or a corresponding CC addendum number, the
> NTEP CC shall be prefaced by the terms \"NTEP CC,\" \"CC,\" or
> \"Approval.\" These terms may be followed by the term \"Number\" or an
> abbreviation of that word. The abbreviation for the word \"Number\"
> shall, as a minimum, begin with the letter \"N\" (e.g., No or No.).***
>
> ***\[Nonretroactive as of January 1, 2003\]***
>
> **The required information shall be so located that it is readily
> observable without the necessity of the disassembly of a part
> requiring the use of any means separate from the device.**
>
> **(Amended 1985, 1991, 1999 and 2000)**
>
> Add new paragraph G-S.1.1. and renumber existing paragraph G-S.1.1. as
> follows:
>
> ***[G-S.1.1. Not-Built--For--Purpose Devices,
> Software-Based.]{.underline}* - *[For not-built--for--purpose,
> software-based devices, the following shall apply: ]{.underline}***
>
> ***[(a) the manufacturer or distributor and the model designation
> shall be continuously displayed or marked on the device (see note
> below), or]{.underline}***
>
> ***[(b) the Certificate of Conformance (CC) Number shall be
> continuously displayed or marked on the device (see note below),
> or]{.underline}***
>
> ***[(c) all required information in G-S.1. Identification. (a), (b),
> (c), (e), and (h) be continuously displayed. Alternatively, a clearly
> identified "view only" System Identification, G-S.1. Identification,
> or Weights and Measures Identification shall be accessible through the
> "Help" menu. Required information includes that information necessary
> to identify that the software in the device is the same type that was
> evaluated.]{.underline}***
>
> ***Note: [Clear instructions for accessing the remaining required
> G-S.1. information shall be listed on the CC. Required information
> includes that information necessary to identify that the software in
> the device is the same type that was evaluated.]{.underline}***
>
> ***[\[Nonretroactive as of January 1, 2004\]]{.underline}***
>
> Amend Code Reference G-S.1. and add Code Reference G-S.1.1. in Section
> 1 on page LMD-9 of the Liquid-Measuring Devices Checklist and Test
> Procedures and Section 1 on page CLMD-2 of the Cryogenic
> Liquid-Measuring Devices Checklist and Test Procedures of NCWM
> Pulication14, Measuring Devices, 2003 edition as follows:

+----+----+-----------------------------------------+---+-------------+---+
| *  |    |                                         |   |             |   |
| *A |    |                                         |   |             |   |
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| s  |    |                                         |   |             |   |
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| ar |    |                                         |   |             |   |
| ly |    |                                         |   |             |   |
| a  |    |                                         |   |             |   |
| nd |    |                                         |   |             |   |
| p  |    |                                         |   |             |   |
| er |    |                                         |   |             |   |
| ma |    |                                         |   |             |   |
| ne |    |                                         |   |             |   |
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| ma |    |                                         |   |             |   |
| rk |    |                                         |   |             |   |
| ed |    |                                         |   |             |   |
| on |    |                                         |   |             |   |
| an |    |                                         |   |             |   |
| ex |    |                                         |   |             |   |
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| or |    |                                         |   |             |   |
| s  |    |                                         |   |             |   |
| ur |    |                                         |   |             |   |
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| th |    |                                         |   |             |   |
| at |    |                                         |   |             |   |
| is |    |                                         |   |             |   |
| v  |    |                                         |   |             |   |
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| in |    |                                         |   |             |   |
| st |    |                                         |   |             |   |
| al |    |                                         |   |             |   |
| la |    |                                         |   |             |   |
| ti |    |                                         |   |             |   |
| on |    |                                         |   |             |   |
| wi |    |                                         |   |             |   |
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| t  |    |                                         |   |             |   |
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| i  |    |                                         |   |             |   |
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| or |    |                                         |   |             |   |
| ma |    |                                         |   |             |   |
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| on |    |                                         |   |             |   |
| (  |    |                                         |   |             |   |
| pr |    |                                         |   |             |   |
| ef |    |                                         |   |             |   |
| ix |    |                                         |   |             |   |
| l  |    |                                         |   |             |   |
| et |    |                                         |   |             |   |
| te |    |                                         |   |             |   |
| ri |    |                                         |   |             |   |
| ng |    |                                         |   |             |   |
| m  |    |                                         |   |             |   |
| ay |    |                                         |   |             |   |
| be |    |                                         |   |             |   |
| i  |    |                                         |   |             |   |
| ni |    |                                         |   |             |   |
| ti |    |                                         |   |             |   |
| al |    |                                         |   |             |   |
| c  |    |                                         |   |             |   |
| ap |    |                                         |   |             |   |
| it |    |                                         |   |             |   |
| al |    |                                         |   |             |   |
| s, |    |                                         |   |             |   |
| a  |    |                                         |   |             |   |
| ll |    |                                         |   |             |   |
| c  |    |                                         |   |             |   |
| ap |    |                                         |   |             |   |
| it |    |                                         |   |             |   |
| al |    |                                         |   |             |   |
| s, |    |                                         |   |             |   |
| or |    |                                         |   |             |   |
| a  |    |                                         |   |             |   |
| ll |    |                                         |   |             |   |
| l  |    |                                         |   |             |   |
| ow |    |                                         |   |             |   |
| er |    |                                         |   |             |   |
| ca |    |                                         |   |             |   |
| se |    |                                         |   |             |   |
| ): |    |                                         |   |             |   |
| ** |    |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
| ** | *  |                                         |   | **Yes**     |   |
| 1. | *N |                                         |   | **No**      |   |
| 1. | am |                                         |   | **NA**      |   |
| ** | e, |                                         |   |             |   |
|    | i  |                                         |   |             |   |
|    | ni |                                         |   |             |   |
|    | ti |                                         |   |             |   |
|    | al |                                         |   |             |   |
|    | s, |                                         |   |             |   |
|    | or |                                         |   |             |   |
|    | t  |                                         |   |             |   |
|    | ra |                                         |   |             |   |
|    | de |                                         |   |             |   |
|    | ma |                                         |   |             |   |
|    | rk |                                         |   |             |   |
|    | of |                                         |   |             |   |
|    | t  |                                         |   |             |   |
|    | he |                                         |   |             |   |
|    | m  |                                         |   |             |   |
|    | an |                                         |   |             |   |
|    | uf |                                         |   |             |   |
|    | ac |                                         |   |             |   |
|    | tu |                                         |   |             |   |
|    | re |                                         |   |             |   |
|    | r. |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | ** | **The manufacturer\'s designation that  |   | **Yes**     |   |
|    | 1. | positively identifies the pattern or    |   | **No**      |   |
|    | 1. | design.**                               |   | **NA**      |   |
|    | 1. |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | ** | **The Model designation shall be        |   | **Yes**     |   |
|    | 1. | prefaced by the word \"Model\",         |   | **No**      |   |
|    | 1. | \"Type\", or \"Pattern\". These terms   |   | **NA**      |   |
|    | 2. | may be followed by the term \"Number\"  |   |             |   |
|    | ** | or an abbreviation of that word. The    |   |             |   |
|    |    | abbreviation for the word \"Number\"    |   |             |   |
|    |    | shall, at a minimum, begin with the     |   |             |   |
|    |    | letter \"N\" (e.g., No or No.) The      |   |             |   |
|    |    | abbreviation for the word \"Model\"     |   |             |   |
|    |    | shall be \"Mod\" or \"Mod.\". Effective |   |             |   |
|    |    | January 1, 2003).**                     |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | ** | **A unique serial number [(except for   |   | **Yes**     |   |
|    | 1. | not built-for-purpose, software-based   |   | **No**      |   |
|    | 1. | devices. ]{.underline}**                |   | **NA**      |   |
|    | 3. |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | *  | **[The current software version number  |   | **Yes**     |   |
|    | *[ | for not built-for-purpose,              |   | **No**      |   |
|    | 1. | software-based devices]{.underline}**   |   | **NA**      |   |
|    | 1. |                                         |   |             |   |
|    | 3. |                                         |   |             |   |
|    | 1] |                                         |   |             |   |
|    | {. |                                         |   |             |   |
|    | un |                                         |   |             |   |
|    | de |                                         |   |             |   |
|    | rl |                                         |   |             |   |
|    | in |                                         |   |             |   |
|    | e} |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | ** | **The serial number shall be prefaced   |   | **Yes**     |   |
|    | 1. | by the words \"Serial Number\" or an    |   | **No**      |   |
|    | 1. | abbreviation of that term.              |   | **NA**      |   |
|    | 4. | Abbreviations for the word \"Serial\"   |   |             |   |
|    | ** | shall, as a minimum, begin with the     |   |             |   |
|    |    | letter \"S,\" and abbreviations for the |   |             |   |
|    |    | word \"Number\" shall, as a minimum,    |   |             |   |
|    |    | begin with the letter \"N\" (e.g., S/N, |   |             |   |
|    |    | SN, Ser. No, and S No.).**              |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | ** |                                         |   |             |   |
|    | Co |                                         |   |             |   |
|    | de |                                         |   |             |   |
|    | R  |                                         |   |             |   |
|    | ef |                                         |   |             |   |
|    | er |                                         |   |             |   |
|    | en |                                         |   |             |   |
|    | ce |                                         |   |             |   |
|    | G- |                                         |   |             |   |
|    | S. |                                         |   |             |   |
|    | 1. |                                         |   |             |   |
|    | (g |                                         |   |             |   |
|    | ). |                                         |   |             |   |
|    | E  |                                         |   |             |   |
|    | ff |                                         |   |             |   |
|    | ec |                                         |   |             |   |
|    | ti |                                         |   |             |   |
|    | ve |                                         |   |             |   |
|    | J  |                                         |   |             |   |
|    | an |                                         |   |             |   |
|    | ua |                                         |   |             |   |
|    | ry |                                         |   |             |   |
|    | 1, |                                         |   |             |   |
|    | 20 |                                         |   |             |   |
|    | 03 |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | ** | **The NTEP Certificate of Conformance   | * |             |   |
|    | 1. | (CC) Number or a corresponding CC       | * |             |   |
|    | 1. | addendum number for devices that have a | Y |             |   |
|    | 5. | CC. The number shall be prefaced by the | e |             |   |
|    | ** | terms \"NTEP CC\", \"CC\", or           | s |             |   |
|    |    | \"Approval\". These terms may be        | * |             |   |
|    |    | followed by the word \"Number\" or an   | * |             |   |
|    |    | abbreviation for the Word \"Number\".   | * |             |   |
|    |    | The abbreviation shall as a minimum     | * |             |   |
|    |    | begin with the letter \"N\" (e.g., No   | N |             |   |
|    |    | or No.).**                              | o |             |   |
|    |    |                                         | * |             |   |
|    |    | **The device must have an area, either  | * |             |   |
|    |    | on the identification plate or on the   | * |             |   |
|    |    | device itself, suitable for the         | * |             |   |
|    |    | application of the Certificate of       | N |             |   |
|    |    | Conformance Number. If the area for the | A |             |   |
|    |    | CC Number is not part of an             | * |             |   |
|    |    | identification plate, note its intended | * |             |   |
|    |    | location and how it will be applied.**  |   |             |   |
|    |    |                                         |   |             |   |
|    |    | **Location of CC Number if not located  |   |             |   |
|    |    | with the identification:**              |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
| *  |    |                                         |   |             |   |
| *[ |    |                                         |   |             |   |
| Co |    |                                         |   |             |   |
| de |    |                                         |   |             |   |
| Re |    |                                         |   |             |   |
| fe |    |                                         |   |             |   |
| re |    |                                         |   |             |   |
| nc |    |                                         |   |             |   |
| e: |    |                                         |   |             |   |
| G- |    |                                         |   |             |   |
| S. |    |                                         |   |             |   |
| 1. |    |                                         |   |             |   |
| 1. |    |                                         |   |             |   |
| N  |    |                                         |   |             |   |
| ot |    |                                         |   |             |   |
| B  |    |                                         |   |             |   |
| ui |    |                                         |   |             |   |
| lt |    |                                         |   |             |   |
| -f |    |                                         |   |             |   |
| or |    |                                         |   |             |   |
| -P |    |                                         |   |             |   |
| ur |    |                                         |   |             |   |
| po |    |                                         |   |             |   |
| se |    |                                         |   |             |   |
| De |    |                                         |   |             |   |
| vi |    |                                         |   |             |   |
| ce |    |                                         |   |             |   |
| s, |    |                                         |   |             |   |
| S  |    |                                         |   |             |   |
| of |    |                                         |   |             |   |
| tw |    |                                         |   |             |   |
| ar |    |                                         |   |             |   |
| e- |    |                                         |   |             |   |
| Ba |    |                                         |   |             |   |
| se |    |                                         |   |             |   |
| d] |    |                                         |   |             |   |
| {. |    |                                         |   |             |   |
| un |    |                                         |   |             |   |
| de |    |                                         |   |             |   |
| rl |    |                                         |   |             |   |
| in |    |                                         |   |             |   |
| e} |    |                                         |   |             |   |
| ** |    |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
| ** | ** |                                         |   |             |   |
| [1 | [F |                                         |   |             |   |
| .2 | or |                                         |   |             |   |
| .] | n  |                                         |   |             |   |
| {. | ot |                                         |   |             |   |
| un | bu |                                         |   |             |   |
| de | il |                                         |   |             |   |
| rl | t- |                                         |   |             |   |
| in | fo |                                         |   |             |   |
| e} | r- |                                         |   |             |   |
| ** | pu |                                         |   |             |   |
|    | rp |                                         |   |             |   |
|    | os |                                         |   |             |   |
|    | e, |                                         |   |             |   |
|    | so |                                         |   |             |   |
|    | ft |                                         |   |             |   |
|    | wa |                                         |   |             |   |
|    | re |                                         |   |             |   |
|    | -b |                                         |   |             |   |
|    | as |                                         |   |             |   |
|    | ed |                                         |   |             |   |
|    | d  |                                         |   |             |   |
|    | ev |                                         |   |             |   |
|    | ic |                                         |   |             |   |
|    | es |                                         |   |             |   |
|    | t  |                                         |   |             |   |
|    | he |                                         |   |             |   |
|    | f  |                                         |   |             |   |
|    | ol |                                         |   |             |   |
|    | lo |                                         |   |             |   |
|    | wi |                                         |   |             |   |
|    | ng |                                         |   |             |   |
|    | s  |                                         |   |             |   |
|    | ha |                                         |   |             |   |
|    | ll |                                         |   |             |   |
|    | a  |                                         |   |             |   |
|    | pp |                                         |   |             |   |
|    | ly |                                         |   |             |   |
|    | :] |                                         |   |             |   |
|    | {. |                                         |   |             |   |
|    | un |                                         |   |             |   |
|    | de |                                         |   |             |   |
|    | rl |                                         |   |             |   |
|    | in |                                         |   |             |   |
|    | e} |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | ** | **[the manufacturer or distributor and  | * |             |   |
|    | [1 | the model designation shall be          | * |             |   |
|    | .2 | continuously displayed or marked on the | Y |             |   |
|    | .1 | device (see note below),                | e |             |   |
|    | .] | or]{.underline}**                       | s |             |   |
|    | {. |                                         | * |             |   |
|    | un |                                         | * |             |   |
|    | de |                                         | * |             |   |
|    | rl |                                         | * |             |   |
|    | in |                                         | N |             |   |
|    | e} |                                         | o |             |   |
|    | ** |                                         | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | N |             |   |
|    |    |                                         | A |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | ** | **[the Certificate of Conformance (CC)  | * |             |   |
|    | [1 | Number shall be continuously displayed  | * |             |   |
|    | .2 | or marked on the device (see note       | Y |             |   |
|    | .2 | below), or]{.underline}**               | e |             |   |
|    | .] |                                         | s |             |   |
|    | {. |                                         | * |             |   |
|    | un |                                         | * |             |   |
|    | de |                                         | * |             |   |
|    | rl |                                         | * |             |   |
|    | in |                                         | N |             |   |
|    | e} |                                         | o |             |   |
|    | ** |                                         | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | N |             |   |
|    |    |                                         | A |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | [1 | **[all required information in G-S.1.   | * |             |   |
|    | .2 | Identification. (a), (b), (c), (e), and | * |             |   |
|    | .3 | (h) be continuously displayed.          | Y |             |   |
|    | .] | Alternatively, a clearly identified     | e |             |   |
|    | {. | view only System Identification, G-S.1. | s |             |   |
|    | un | Identification, or Weights and Measures | * |             |   |
|    | de | Identification shall be accessible      | * |             |   |
|    | rl | through the "Help" menu. Required       | * |             |   |
|    | in | information includes that information   | * |             |   |
|    | e} | necessary to identify that the software | N |             |   |
|    |    | in the device is the same type that was | o |             |   |
|    |    | evaluated.]{.underline}**               | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | N |             |   |
|    |    |                                         | A |             |   |
|    |    |                                         | * |             |   |
|    |    |                                         | * |             |   |
+----+----+-----------------------------------------+---+-------------+---+
|    | *  | **Clear instructions for accessing the  |   |             |   |
|    | *[ | remaining required G-S.1. information   |   |             |   |
|    | No | shall be listed on the CC. Required     |   |             |   |
|    | te | information includes that information   |   |             |   |
|    | :] | necessary to identify that the software |   |             |   |
|    | {. | in the device is the same type that was |   |             |   |
|    | un | evaluated.**                            |   |             |   |
|    | de |                                         |   |             |   |
|    | rl |                                         |   |             |   |
|    | in |                                         |   |             |   |
|    | e} |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
| 1  | *  |                                         | * |             |   |
| .~ | *T |                                         | * |             |   |
| ~2 | he |                                         | Y |             |   |
| ~~ | id |                                         | e |             |   |
| 3. | en |                                         | s |             |   |
|    | ti |                                         | * |             |   |
|    | fi |                                         | * |             |   |
|    | ca |                                         | * |             |   |
|    | ti |                                         | * |             |   |
|    | on |                                         | N |             |   |
|    | b  |                                         | o |             |   |
|    | ad |                                         | * |             |   |
|    | ge |                                         | * |             |   |
|    | mu |                                         | * |             |   |
|    | st |                                         | * |             |   |
|    | be |                                         | N |             |   |
|    | v  |                                         | A |             |   |
|    | is |                                         | * |             |   |
|    | ib |                                         | * |             |   |
|    | le |                                         |   |             |   |
|    | a  |                                         |   |             |   |
|    | ft |                                         |   |             |   |
|    | er |                                         |   |             |   |
|    | i  |                                         |   |             |   |
|    | ns |                                         |   |             |   |
|    | ta |                                         |   |             |   |
|    | ll |                                         |   |             |   |
|    | at |                                         |   |             |   |
|    | io |                                         |   |             |   |
|    | n. |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+
| *  | *  |                                         | * |             |   |
| *1 | *T |                                         | * |             |   |
| .~ | he |                                         | Y |             |   |
| ~3 | id |                                         | e |             |   |
| ~~ | en |                                         | s |             |   |
| 4. | ti |                                         | * |             |   |
| ** | fi |                                         | * |             |   |
|    | ca |                                         | * |             |   |
|    | ti |                                         | * |             |   |
|    | on |                                         | N |             |   |
|    | b  |                                         | o |             |   |
|    | ad |                                         | * |             |   |
|    | ge |                                         | * |             |   |
|    | mu |                                         | * |             |   |
|    | st |                                         | * |             |   |
|    | be |                                         | N |             |   |
|    | pe |                                         | A |             |   |
|    | rm |                                         | * |             |   |
|    | an |                                         | * |             |   |
|    | en |                                         |   |             |   |
|    | t. |                                         |   |             |   |
|    | ** |                                         |   |             |   |
+----+----+-----------------------------------------+---+-------------+---+

> Renumber succeeding paragraphs accordingly.
>
> Amend Code Reference G-S.1. and add Code Reference G-S.1.1. in Section
> 1 on page ECRD-3 of the Electronic Cash Registers Interface with
> Retail Motor-Fuel Dispensers Checklist and Test Procedures of NCWM
> Pulication14, Measuring Devices, 2003 edition as follows:
>
> B. Checklist and Test Procedure
>
> 1\. Identification
>
> Code Reference: G-S.1. General - **Each cash register must comply with
> the appropriate Handbook 44 identification requirements. All
> equipment, except weights and separate parts necessary to the
> measurement process but not having any metrological effect, shall be
> clearly and permanently marked for the purposes of identification with
> the following information. (prefix lettering may be initial capitals,
> all capitals, or all lower case)**
>
> **Location of the information:**

+----+---+---+------------------------------------------+---------------+
| ** |   | * |                                          | **Yes**       |
| 1. |   | * |                                          | **No** **NA** |
| 1. |   | T |                                          |               |
| ** |   | h |                                          |               |
|    |   | e |                                          |               |
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|    |   | a |                                          |               |
|    |   | m |                                          |               |
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|    |   | , |                                          |               |
|    |   | o |                                          |               |
|    |   | r |                                          |               |
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|    |   | h |                                          |               |
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|    |   | a |                                          |               |
|    |   | n |                                          |               |
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|    |   | r |                                          |               |
|    |   | o |                                          |               |
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|    |   | d |                                          |               |
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|    |   | s |                                          |               |
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|    |   | b |                                          |               |
|    |   | u |                                          |               |
|    |   | t |                                          |               |
|    |   | o |                                          |               |
|    |   | r |                                          |               |
|    |   | . |                                          |               |
|    |   | * |                                          |               |
|    |   | * |                                          |               |
+----+---+---+------------------------------------------+---------------+
| ** |   | * |                                          | **Yes**       |
| 1. |   | * |                                          | **No** **NA** |
| 2. |   | A |                                          |               |
| ** |   | m |                                          |               |
|    |   | o |                                          |               |
|    |   | d |                                          |               |
|    |   | e |                                          |               |
|    |   | l |                                          |               |
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|    |   | t |                                          |               |
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|    |   | g |                                          |               |
|    |   | n |                                          |               |
|    |   | o |                                          |               |
|    |   | f |                                          |               |
|    |   | t |                                          |               |
|    |   | h |                                          |               |
|    |   | e |                                          |               |
|    |   | d |                                          |               |
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|    |   | v |                                          |               |
|    |   | i |                                          |               |
|    |   | c |                                          |               |
|    |   | e |                                          |               |
|    |   | . |                                          |               |
|    |   | * |                                          |               |
|    |   | * |                                          |               |
+----+---+---+------------------------------------------+---------------+
| ** |   | * |                                          | **Yes**       |
| 1. |   | * |                                          | **No** **NA** |
| 3. |   | T |                                          |               |
| ** |   | h |                                          |               |
|    |   | e |                                          |               |
|    |   | M |                                          |               |
|    |   | o |                                          |               |
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+----+---+---+------------------------------------------+---------------+
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+----+---+---+------------------------------------------+---------------+
| *  |   | * |                                          | **Yes**       |
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+----+---+---+------------------------------------------+---------------+
| *  |   | * |                                          | **Yes**       |
| *1 |   | * |                                          | **No** **NA** |
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|    | * |   |                                          |               |
+----+---+---+------------------------------------------+---------------+
| *  | * |   |                                          | **Yes**       |
| *1 | * |   |                                          | **No** **NA** |
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| 2. | h |   |                                          |               |
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|    | . |   |                                          |               |
|    | * |   |                                          |               |
|    | * |   |                                          |               |
+----+---+---+------------------------------------------+---------------+
| *  |   |   |                                          |               |
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| 1. |   |   |                                          |               |
| N  |   |   |                                          |               |
| ot |   |   |                                          |               |
| B  |   |   |                                          |               |
| ui |   |   |                                          |               |
| lt |   |   |                                          |               |
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| s, |   |   |                                          |               |
| S  |   |   |                                          |               |
| of |   |   |                                          |               |
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| Ba |   |   |                                          |               |
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| d] |   |   |                                          |               |
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| un |   |   |                                          |               |
| de |   |   |                                          |               |
| rl |   |   |                                          |               |
| in |   |   |                                          |               |
| e} |   |   |                                          |               |
| ** |   |   |                                          |               |
+----+---+---+------------------------------------------+---------------+
| *  | * |   |                                          |               |
| *[ | * |   |                                          |               |
| 1. | [ |   |                                          |               |
| 13 | F |   |                                          |               |
| .] | o |   |                                          |               |
| {. | r |   |                                          |               |
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|    | - |   |                                          |               |
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|    | u |   |                                          |               |
|    | r |   |                                          |               |
|    | p |   |                                          |               |
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|    | , |   |                                          |               |
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|    | i |   |                                          |               |
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|    | s |   |                                          |               |
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|    | o |   |                                          |               |
|    | w |   |                                          |               |
|    | i |   |                                          |               |
|    | n |   |                                          |               |
|    | g |   |                                          |               |
|    | s |   |                                          |               |
|    | h |   |                                          |               |
|    | a |   |                                          |               |
|    | l |   |                                          |               |
|    | l |   |                                          |               |
|    | a |   |                                          |               |
|    | p |   |                                          |               |
|    | p |   |                                          |               |
|    | l |   |                                          |               |
|    | y |   |                                          |               |
|    | : |   |                                          |               |
|    | ] |   |                                          |               |
|    | { |   |                                          |               |
|    | . |   |                                          |               |
|    | u |   |                                          |               |
|    | n |   |                                          |               |
|    | d |   |                                          |               |
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|    | r |   |                                          |               |
|    | l |   |                                          |               |
|    | i |   |                                          |               |
|    | n |   |                                          |               |
|    | e |   |                                          |               |
|    | } |   |                                          |               |
|    | * |   |                                          |               |
|    | * |   |                                          |               |
+----+---+---+------------------------------------------+---------------+
|    | * |   | **[the manufacturer or distributor and   | **[Yes]{      |
|    | * |   | the model designation shall be           | .underline}** |
|    | [ |   | continuously displayed or marked on the  | **[No]{       |
|    | 1 |   | device (see note below),                 | .underline}** |
|    | . |   | or]{.underline}**                        | **[NA]{       |
|    | 1 |   |                                          | .underline}** |
|    | . |   |                                          |               |
|    | 3 |   |                                          |               |
|    | . |   |                                          |               |
|    | 1 |   |                                          |               |
|    | . |   |                                          |               |
|    | ] |   |                                          |               |
|    | { |   |                                          |               |
|    | . |   |                                          |               |
|    | u |   |                                          |               |
|    | n |   |                                          |               |
|    | d |   |                                          |               |
|    | e |   |                                          |               |
|    | r |   |                                          |               |
|    | l |   |                                          |               |
|    | i |   |                                          |               |
|    | n |   |                                          |               |
|    | e |   |                                          |               |
|    | } |   |                                          |               |
|    | * |   |                                          |               |
|    | * |   |                                          |               |
+----+---+---+------------------------------------------+---------------+
|    | * |   | **[the Certificate of Conformance (CC)   | **[Yes]{      |
|    | * |   | Number shall be continuously displayed   | .underline}** |
|    | [ |   | or marked on the device (see note        | **[No]{       |
|    | 1 |   | below), or]{.underline}**                | .underline}** |
|    | . |   |                                          | **[NA]{       |
|    | 1 |   |                                          | .underline}** |
|    | 3 |   |                                          |               |
|    | . |   |                                          |               |
|    | 2 |   |                                          |               |
|    | . |   |                                          |               |
|    | ] |   |                                          |               |
|    | { |   |                                          |               |
|    | . |   |                                          |               |
|    | u |   |                                          |               |
|    | n |   |                                          |               |
|    | d |   |                                          |               |
|    | e |   |                                          |               |
|    | r |   |                                          |               |
|    | l |   |                                          |               |
|    | i |   |                                          |               |
|    | n |   |                                          |               |
|    | e |   |                                          |               |
|    | } |   |                                          |               |
|    | * |   |                                          |               |
|    | * |   |                                          |               |
+----+---+---+------------------------------------------+---------------+
|    | * |   | **[all required information in G-S.1.    | **[Yes]{      |
|    | * |   | Identification. (a), (b), (c), (e), and  | .underline}** |
|    | [ |   | (h) be continuously displayed.           | **[No]{       |
|    | 1 |   | Alternatively, a clearly identified view | .underline}** |
|    | . |   | only System Identification, G-S.1.       | **[NA]{       |
|    | 1 |   | Identification, or Weights and Measures  | .underline}** |
|    | 3 |   | Identification shall be accessible       |               |
|    | . |   | through the "Help" menu. Required        |               |
|    | 3 |   | information includes that information    |               |
|    | . |   | necessary to identify that the software  |               |
|    | ] |   | in the device is the same type that was  |               |
|    | { |   | evaluated.]{.underline}**                |               |
|    | . |   |                                          |               |
|    | u |   |                                          |               |
|    | n |   |                                          |               |
|    | d |   |                                          |               |
|    | e |   |                                          |               |
|    | r |   |                                          |               |
|    | l |   |                                          |               |
|    | i |   |                                          |               |
|    | n |   |                                          |               |
|    | e |   |                                          |               |
|    | } |   |                                          |               |
|    | * |   |                                          |               |
|    | * |   |                                          |               |
+----+---+---+------------------------------------------+---------------+
|    | * |   | **[Clear instructions for accessing the  |               |
|    | * |   | remaining required G-S.1. information    |               |
|    | [ |   | shall be listed on the CC. Required      |               |
|    | N |   | information includes that information    |               |
|    | o |   | necessary to identify that the software  |               |
|    | t |   | in the device is the same type that was  |               |
|    | e |   | evaluated.]{.underline}**                |               |
|    | : |   |                                          |               |
|    | ] |   |                                          |               |
|    | { |   |                                          |               |
|    | . |   |                                          |               |
|    | u |   |                                          |               |
|    | n |   |                                          |               |
|    | d |   |                                          |               |
|    | e |   |                                          |               |
|    | r |   |                                          |               |
|    | l |   |                                          |               |
|    | i |   |                                          |               |
|    | n |   |                                          |               |
|    | e |   |                                          |               |
|    | } |   |                                          |               |
|    | * |   |                                          |               |
|    | * |   |                                          |               |
+----+---+---+------------------------------------------+---------------+

> **B. S.4.4.1. Discharge Rates**
>
> **Background:** During its 2003 Annual Meeting, the NCWM agreed to
> amend Handbook 44 General Code paragraph S.4.4.1. Discharge Rates as
> follows:
>
> ***S.4.4.1. Discharge Rates. - On a retail device with a designed
> maximum discharge rate of 115 L (30 gal) per minute or greater, the
> maximum and minimum discharge rates shall be [marked]{.underline} ~~on
> an exterior surface of the device and shall be visible after
> installation~~ [in accordance with S.4.4.2]{.underline}. The
> [marked]{.underline} minimum discharge rate shall not exceed 20
> percent of the marked maximum discharge rate.***
>
> **[Example: With a marked maximum discharge rate of 230 L/min (60
> gpm), the marked minimum discharge rate shall be 45 L/min (12 gpm) or
> less (e.g., 40 L/min (10 gpm) is acceptable). A marked minimum
> discharge rate greater than 45 L/min (12 gpm) (e.g., 60 L/min (15
> gpm)) is not acceptable.]{.underline}**

**Recommendation:** Modify Section 11, paragraph 11.2. of the
Liquid-Measuring Devices Checklist and Test Procedures of NCWM
Pulication14, Measuring Devices, 2003 edition as follows:

  ---------------------------- ------------------------------------------------- ---------------
  Code Reference: S.4.4.                                                         
  Marking Requirements For                                                       
  Retail Devices Only                                                            

  **11.2.**                    **On a retail device with a designed maximum      **Yes** **No**
                               discharge rate of 115 L/min (30 gpm) or greater,  **NA**
                               the maximum and minimum discharge rates shall be  
                               marked ~~on an exterior surface of the device and 
                               be visible after installation~~ [in accordance    
                               with S.4.4.2.]{.underline} The minimum rate shall 
                               not exceed 20 percent of the maximum discharge    
                               rate.**                                           

  **[Example: With a marked                                                      
  maximum discharge rate of                                                      
  230 L/min (60 gpm), the                                                        
  marked minimum discharge                                                       
  rate shall be 45 L/min (12                                                     
  gpm) or less (e.g., 40 L/min                                                   
  (10 gpm) is acceptable). A                                                     
  marked minimum discharge                                                       
  rate greater than 45 L/min                                                     
  (12 gpm) (e.g., 60 L/min (15                                                   
  gpm)) is not                                                                   
  acceptable.]{.underline}**                                                     
  ---------------------------- ------------------------------------------------- ---------------

> **Discussion/Conclusion:** At the October 2003 NTETC Measuring Sector
> Meeting, there was no discussion on these items. The Sector recommends
> that the NTEP Committee amend Publication 14, as shown above.

## 2. Testing Required for an Electronic Indicator with a CC Interfaced with a Measuring Element with a CC not Previously Evaluated Together (Carry-Over Item)

**Source:** NTEP Measuring Laboratories

**Background:** At the May 2001 NTEP Laboratory Meeting, one of the
participating laboratories asked for input regarding what testing should
be required if the manufacturer of an indicator wanted the CC to
recognize the indicator for use with different types of measuring
devices, such as PD meters, turbine meters, and mass flow meters. Dan
Reiswig (CA NTEP Laboratory) agreed to provide a draft of changes to the
Liquid-Measuring Devices Checklist and Procedures that included
requirements for indicators intended to be used with more than one
device type.

Dan Reiswig was not able to attend the September 2001 Measuring Sector
Meeting. The Sector agreed to carry this item forward on next meeting\'s
agenda. The following groups and individuals agreed to provide input:
the NTEP Measuring Laboratories, Measurement Canada, RichTucker (Tokhiem
representing GPMA), John Skuce (FMC -- Smith Meter representing MMA),
Mike Keilty (Micro Motion), and David Hoffman (Toptech).

At the June 2002 NTEP Laboratory Meeting, the laboratories agreed that
an initial performance test conducted by an approved NTEP Laboratory is
required. The testing criteria applied should be the same as that
applied to a new metering system. Subsequent permanence testing should
be at the discretion of NTEP based on the initial performance and could
be conducted by a local weights and measures official under the
direction and control of the NTEP evaluator performing the initial test.

Prior to the 2002 NTEP Laboratory Meeting Rich Tucker (Tokhiem
representing GPMA) submitted the following for consideration by the
labs:

-   **Testing Required for an Electronic Indicator with a CC Interfaced
    with a Measuring Element with a CC not previously Evaluated
    Together.**

-   **Significant Assumptions**

> The metering element has been through NTEP so all the accuracy,
> permanence, and flow rate information has been tested and meets all
> requirements of Handbook 44.
>
> The Electronic Indicator has been through NTEP and all electronic
> functions and other requirements have been tested and meet all
> requirements of Handbook 44.
>
> For the Dispenser, the manufacturer can only request flow rates that
> fall within the meter approval flow limits and products.
>
> In the above scenario, the only open issue is the electronic interface
> to the pulser and the electronic calculator. The electronic calculator
> receives pulses directly from the pulser. The calculator converts the
> pulses into a volume by knowing how many pulses make up a gallon of
> delivery. For example, Tokheim uses, almost exclusively1000 pulses per
> gallon of delivery. This is not a standard. Other manufacturers use
> other pulse counts. The only verification is to make sure the
> manufacturer has setup the software correctly to match the pulser
> output and meter delivery.
>
> **Test**
>
> Run calibration test drafts to verify compatibility
>
> **Testing Options** (The manufacturer at its option should do the
> following)
>
> Have a representative from the NTEP go to a test site or the
> manufacturer's lab to verify compatibility.
>
> The manufacturer shall submit data from its lab testing and follow-up
> test data from an initial verification at one of the first installed
> sites. Data supplied would be a copy of the weights and measures
> calibration tests performed at the time the equipment was placed in
> service.

At the 2002 Sector Meeting a work group was formed to address this
issue. The Sector agreed to consider the recommendations of that work
group at its 2003 Meeting.

Randy Byrtus provided a summary of the Canadian policy to the work group
as follows:

Section 10.(1) of the Canadian Weights and Measures Regulations
prescribes that a device or class, type or design of device is exempt
from paragraph 8(a) of the Weights and Measures Act if every part of the
device that can have an effect on the accuracy of the device or class,
type or design of device is approved pursuant to section 3 of the Act.
Section 8(a) of the W&M Act simply states "that no trader shall use, or
have in his possession for use, in trade, any device unless that device
or class, type or design of device has been approved for use in trade
pursuant to section 3." And section 3 prescribes that "the Minister
shall, in accordance with the regulations, approve devices or classes,
types or designs of devices for use in trade." In other words, if a
register has its own approval and a meter has its own approval, it is
possible to connect the two for trade use without having to approve the
combination as a system.

Employing section 10.1is still at the discretion of the W&M inspector
and the ASL. If there is any doubt that two or more approved devices
when connected together are not compatible, the system can be subjected
to an approval evaluation.

The aspect of assessing compatibility is usually performed at the
initial field inspection. This is a post approval process. Before each
and every device can be placed in service, it must undergo an initial
inspection against requirements for installation and use of the device.
It is frequently at this stage that approved registers and meters are
connected to one another and presented for inspection. Compatibility is
judged by whether or not the two devices perform accurately together
within prescribed tolerances when subjected to the inspection process.
If there is any doubt or evidence that the combination of approved
devices is not compatible, they would not receive the initial inspection
that is necessary to permit use-in-trade applications.

If the approval applicant at the time of approval requests that a
certain individual device such as an electronic register can be used
with approved volumetric meters that have different types of output
signals, then the register is evaluated for each type of signal input.
This is typically done by simulating the type of input to the register.
It is not necessary for the approval applicant to provide all the
different meters unless the output signal from the meter cannot be
simulated in the laboratory or there is some mechanical interface
between the register and meter that could produce wear, cause alignment,
and torque problems, etc.

In most instances when a volumetric meter is matched with an electronic
register, they are connected electrically using wiring, buses or other
digital interfaces. The main types of signal communication between
meters and registers are square wave pulse form, high frequency pulse
form, digital signal (i.e., bits and bytes) and current loop (i.e., 4 -
20 mA). Current loop, although previously very prevalent, is seldom used
today. The ASL can evaluate square wave pulse and high frequency forms
using "built in-house" pulse generators. These are custom made to
accommodate testing against the requirements for pulsers prescribed by
*SVM-1, Ministerial Specifications for Electronic Registers.* These
requirements were developed around the type of pulse generators that
were prevalent before digital communication became popular. The SVM-1
applies to pulsers of the reed switch, hall-effect and photo-electric
types. There are currently no requirements for digital-type outputs and
there is presently no consideration for developing any because of the
reliability of this form of communication over pulse-generated signals
and their ability to check and monitor for complete data transfer and
perform diagnostics. If digital communication is available for input to
a register, the ASL will request a sample of an approved meter with
digital capability in order to connect the register and meter together.
This will determine if the register can accept and function properly
with this type of communication. If, in the event the approval applicant
cannot supply a meter, a means to simulate the input would be requested.
Typically the compatibility of the system is flow tested at various flow
rates over the range of the meter's rated capacity, the 4 - 20 mA signal
is verified using a current supply and multimeter and checking the
accuracy at different points between 4 and 20 mA. Naturally, certified
and traceable measurement standards are used. Regardless of the type of
signal generation, each type is evaluated at reference conditions as
well as at ambient temperatures of -30 °C and + 40°C. Under each of
these conditions, the devices are exposed to radio frequency
interference of 25 and 460 Mhz using 4-watt radio transceivers.

In all cases, regardless of the type of signal being used, many of the
problems that affect the compatibility of devices are installation
related due to incorrect wiring, lack of shielding, vibration,
electromagnetic and radio frequency interference, incorrect
configuration or selection of parameters when setting the device up,
mismatched communication protocols and interfaces, and other
installation effects that can cause compatibility problems.

Because there are no moving parts as there are in many type of
volumetric metering devices that are subject to wear resulting in the
degradation of accuracy, the ASL does not perform any permanency testing
on registers. Our position is that electronic components either work or
they don't work. There are rare instances that show noticeable
degradation of accuracy over time due to electrically generated signals
or aging electronic components.

When a Notice of Approval is issued for a volumetric meter or electronic
register, the approval will identify which meter outputs are approved
and which types of inputs are approved for the electronic register. The
approval will also state that volumetric meters can be used with any
approved and compatible electronic register and vice versa. Again, the
compatibility aspect is judged at the installation during the initial
inspection. If the approval for the meter and register identify like
outputs/inputs, then the system proceeds with an inspection and is
subject to subsequent re-inspections at later time intervals. The
advantage of subsequent re-inspections is that they ensure continued
compliance with applicable requirements as well as maintaining the
compatibility aspect.

The work group submitted the following proposal to add a new paragraph
N.X. only to Handbook 44 Section 3.30.. 3.31., 3.32. and 3.37. and an
alternate proposal to add a new Section T. to Publication 14, for
consideration at the 2003 Measuring Sector Meeting. The work group
proposal included a new section 44 to be added to the Liquid-Measuring
Devices Checklist and Test Procedures of Publication 14, 2003 Edition.

**Recommendation:** Add a new paragraph N.X. to Handbook 44 Sections
3.30. Liquid-Measuring Devices, 3.31. Vehicle-Tank Meters, 3.32. LPG and
Anhydrous Ammonia Liquid-Measuring Devices, and 3.37. Mass Flow Meters
as follows:

> **N.X. Testing Required for an Electronic Indicator with a CC
> Interfaced with a Measuring Element with a CC not Previously Evaluated
> Together.**
>
> **Additional testing by an NTEP authorized laboratory is not required
> if an electronic indicator with a CC is interfaced to a measuring
> element with a CC provided all of the following conditions are
> determined during the initial field verification:**
>
> **(a) each device is used within the application limits noted on its
> CC;**

(b) **the devices are communicating with each other, and the system into
    which they are installed can be accurately calibrated;**

(c) **NTEP-compliant tickets (if required) can be printed from the
    system; and**

(d) **If a measuring device uses a 4 - 20 mA or frequency interface to
    transmit a fault signal, this interface is only interchangeable as
    defined by the measuring device CC.**

Alternatively, add a new Section T to Publication 14, Technical Policy
for Liquid-Measuring Devices and revise the Compatibility Test, 2003
edition as follows:

T. Testing Required for an Electronic Indicator with a CC Interfaced
with a Measuring Element with a CC not Previously Evaluated Together.

> **Additional testing by an NTEP-authorized laboratory is not required
> if an electronic indicator with a CC is interfaced to a measuring
> element with a CC provided all of the following are true:**
>
> **(a) each device is used within the application limits noted on its
> CC;**
>
> **(b) the devices are communicating with each other, and the system
> into which they are installed can be accurately calibrated;**
>
> **(c) NTEP-compliant tickets (if required) can be printed from the
> system; and**
>
> **(d) If a measuring device uses a 4 - 20 mA or frequency interface to
> transmit a fault signal, this interface is only interchangeable as
> defined by the measuring device CC.**

**Compatibility Test:**

> ~~Similar d~~[D]{.underline}evices that were individually tested ~~for
> a similar application~~ can be "mixed and matched" without additional
> testing if the system functions properly during the initial routine
> field test [as required by Section T of the Technical Policy for
> Liquid-Measuring Devices]{.underline}. For example, inspectors can
> determine the compatibility of an approved console interfaced with an
> approved retail motor-fuel dispenser during a field evaluation when
> both components are previously approved ~~in~~ ~~like~~ [for
> the]{.underline} application~~s~~[\*]{.underline}. If devices are to
> be used in ~~dissimilar~~ [new]{.underline} applications, then
> additional NTEP testing is required.
>
> \*Where "application" is as defined on the individual CC (e.g.,
> stationary use only).

Add the following Additional Checklist and Test Procedures for
Interfacing Components to Publication 14, 2003 edition.

44. **Additional Checklist and Test Procedures for Interfacing
    Components**

> **When examining the interface between Electronic Indicator and a
> Measuring Element, the following must be considered:**

  ---------- --------------------------------------------------- --------- --------
  **44.1**   **Does the electronic indicator have a CC?**        **Yes**   **No**

  **44.2**   **Is the electronic indicator being used within the **Yes**   **No**
             application limits of the CC?**                               

  **44.3**   **Does the measuring element have a CC?**           **Yes**   **No**

  **44.4**   **Is the measuring element being used within the    **Yes**   **No**
             application limits of the CC?**                               

  **44.5**   **Can the system into which both devices are        **Yes**   **No**
             installed be accurately calibrated?**                         

  **44.6**   **Can a ticket (if required) be properly printed?** **Yes**   **No**

  **44.7**   **Are interfaces, other than mechanical or pulse    **Yes**   **No**
             interfaces (e.g., 4 - 20 mA or frequency                      
             interfaces), being used as defined by the                     
             appropriate CC?**                                             
  ---------- --------------------------------------------------- --------- --------

**Discussion/Conclusion** At the October 2003 Meeting, Richard Miller
(FMC Measurement solutions) stated that his company has always been able
to connect a loading- rack controller to a variety of measuring elements
without NTEP having tested them for compatibility and/or listing them on
the CC for the controller. Charlene Numrych (Liquid Controls) asked
Randy Byrtus (Measurement Canada) if he was aware of a case where two
components were interfaced and initially communicated correctly, then
later failed to work correctly due to communication problems. Randy
indicated that he was not aware of any such situation. One of the NTEP
laboratories indicated that the reference to "NTEP compliant" in
requirement (c), of the proposed language for addition to Handbook 44
tickets, was incorrect. Printed tickets or receipts need to comply with
requirements in Handbook 44. The lab suggested that the "application
limits" in requirement (a) of the proposed language for addition to
Handbook 44 be specified. Charlene agreed to develop revised language
for the proposal and forward it to the technical advisor for completion
in time for the group to consider the revisions. The item was re-visited
and the Sector agreed to forward the following Proposal 1 for addition
to Publication 14 to the NCWM NTEP Committee for consideration, and the
following Proposal 2 to the NCWM S&T Committee for consideration. The
Sector strongly believes that, for the benefit of weights and measures
officials, the proposed test notes for determining the compatibility of
the various components of a weighing or measuring system need to be
added to the General Code Section of Handbook 44.

**Proposal 1.** Add a new section "T" to Publication 14 to guide NTEP
inspectors as to when additional testing is necessary to determine
compatibility between components as follows:

> **Testing Required to Interface Components with Individual CC's that
> were Not Previously Tested Together.**
>
> **Additional testing by an NTEP participating laboratory is not
> required if an electronic indicator is interfaced to a measuring
> element provided all of the following are true:**

a.  **The communication means for the input to the electronic indicator
    (pulse, frequency, serial, etc.) has been previously tested with a
    measuring element listed on a CC;**

b.  **The communication means for the output of the measuring element
    (pulse, frequency, serial, etc.) has been previously tested with an
    electronic indicator listed on a CC;**

c.  **The communication means to be used for the electronic indicator
    input is the same as the communication means to be used for the
    measuring element output (pulse-pulse, frequency-frequency,
    serial-serial, etc.) and both devices are being used within the
    current parameters listed on their respective CCs;**

d.  **The devices are communicating with each other, and the system into
    which they are installed can be accurately calibrated; and**

e.  **If required, Handbook 44 compliant tickets can be printed.**

> **Note: NTEP may require initial or complete evaluation of new
> technologies or applications.**

Add additional checklist section 44 to Publication 14 as follows:

44. **Additional Checklist and Test Procedures for Interfacing
    Components**

> **When examining the interface between Electronic Indicator and a
> Measuring Element, the following must be considered:**

+----+---------------------------------------------------+-----+------+
| ** | > **Does the electronic indicator have a CC?**    | *   | **   |
| 44 |                                                   | *Ye | No** |
| .1 |                                                   | s** |      |
| ** |                                                   |     |      |
+----+---------------------------------------------------+-----+------+
| ** | > **Is the electronic indicator being used within | *   | **   |
| 44 | > the application limits of the CC?**             | *Ye | No** |
| .2 |                                                   | s** |      |
| ** |                                                   |     |      |
+----+---------------------------------------------------+-----+------+
| ** | > **Does the measuring element have a CC?**       | *   | **   |
| 44 |                                                   | *Ye | No** |
| .3 |                                                   | s** |      |
| ** |                                                   |     |      |
+----+---------------------------------------------------+-----+------+
| ** | > **Is the measuring element being used within    | *   | **   |
| 44 | > the application limits of the CC?**             | *Ye | No** |
| .4 |                                                   | s** |      |
| ** |                                                   |     |      |
+----+---------------------------------------------------+-----+------+
| ** | > **Can the system into which both devices are    | *   | **   |
| 44 | > installed be accurately calibrated?**           | *Ye | No** |
| .5 |                                                   | s** |      |
| ** |                                                   |     |      |
+----+---------------------------------------------------+-----+------+
| ** | > **Can a ticket (if required) be properly        | *   | **   |
| 44 | > printed?**                                      | *Ye | No** |
| .6 |                                                   | s** |      |
| ** |                                                   |     |      |
+----+---------------------------------------------------+-----+------+
| ** | > **Are interfaces, other than mechanical or      | *   | **   |
| 44 | > pulse interfaces (e.g., 4 - 20 mA or frequency  | *Ye | No** |
| .7 | > interfaces), being used as defined by the       | s** |      |
| ** | > appropriate CC?**                               |     |      |
+----+---------------------------------------------------+-----+------+

**Proposal 2.** Add a new paragraph G-N.3. Compatibility of Indicators
and Weighing or Measuring Elements to Handbook 44 to clarify what
requirements must be met to interface an indicating element and a
weighing or measuring element that have not been previously evaluated
together on a single NTEP Certificate of Conformance (CC), but each have
its own NTEP CC listing compatible communication specifications.

> **G-N.3. Compatibility of Indicators and Weighing or Measuring
> Elements. -- To be considered compatible, the following conditions
> shall be met:**
>
> **(a) The communication means used for the input to the electronic
> indicator (analog, digital, pulse, frequency, serial, etc.) has been
> previously evaluated with a weighing or measuring element;**
>
> **(b) The communication means used for the output of the weighing or
> measuring element (analog, digital, pulse, frequency, serial, etc.)
> has been previously evaluated with an electronic indicator;**
>
> **(c) The communication means used for the electronic indicator input
> is the same as the communication means used for the weighing and
> measuring element output (analog-analog, digital-digital, pulse-pulse,
> frequency-frequency, serial-serial, etc.);**
>
> **(d) The elements are communicating with each other, and the device
> or system into which they are installed can be accurately calibrated;
> and**
>
> **(e) If required, Handbook 44-compliant tickets can be printed.**

## 3. On-Screen Display of G.S.1. Requirements for Software-Based Built-for-Purpose Devices (New Item)

**Source:** NCWM S&T Committee

**Background:** At its 2003 Annual Meeting, the NCWM adopted a proposal
that provides alternate methods other than physical marking for meeting
some of the requirements in Handbook 44 G-S.1. for
"not-built-for-purpose" devices. At that meeting the NCWM S&T Committee
also reviewed an SMA proposal that provides similar alternate marking
methods for "built-for-purpose" devices. The S&T Committee concluded
that the proposal for "built-for-purpose" devices required further
review and development by the NTETC Technical Sectors and the regional
weights and measures associations.

Prior to the October 2003 NTETC Measuring Sector Meeting, the WMD NTETC
technical advisors developed the alternate proposal shown above to
modify G.S.1. and add a Table G.S.1. that provides alternate methods
other than physical markings for meeting some of the requirements of
G-S.1. for both "not-built-for-purpose" and "built-for-purpose" devices.

**Recommendation:** Modify Handbook 44 Section 1.10 General Code
paragraph G-S.1. Identification, deleting paragraph G-S.1.1.,
renumbering paragraph G-S.1.2., and adding Table G-S.1. as follows:

> **G-S.1. Identification.** **- All equipment, except weights and
> separate parts necessary to the measurement process but not having any
> metrological effect, shall be clearly marked in accordance with Table
> G-S.1. for the purposes of identification, with the following
> information:**
>
> **(a) the name, initials, or trademark of the manufacturer or
> distributor;**
>
> **(b) a model designation that positively identifies the pattern or
> design of the device;**
>
> **(c) *the model designation shall be prefaced by the term \"Model,\"
> \"Type,\" or \"Pattern.\" These terms may be followed by the term
> \"Number\" or an abbreviation of that word. The abbreviation for the
> word \"Number\" shall, as a minimum, begin with the letter \"N\"
> (e.g., No or No.). The abbreviation for the word "Model" shall be
> "Mod" or "Mod."***
>
> ***\[Nonretroactive January 1, 2003\]***
>
> **(Added 2000) (Amended 2001)**
>
> ***\[Note: Prefix lettering may be initial capitals, all capitals or
> all lower case.\]***
>
> ***(d) except for equipment with no moving or electronic component
> parts and not built-for-purpose, [microprocessor]{.underline}-based
> devices, a nonrepetitive serial number;***
>
> ***\[Nonretroactive as of January 1, 1968\]***

(e) ***for [microprocessor]{.underline}-based devices the current
    software [designation or revision number]{.underline};***

> ***(f) the serial number shall be prefaced by words, an abbreviation,
> or a symbol, that clearly identifies the number as the required serial
> number; and***
>
> ***\[Nonretroactive as of January 1, 1986\]***
>
> ***(g) the serial number shall be prefaced by the words \"Serial
> Number\" or an abbreviation of that term. Abbreviations for the word
> \"Serial\" shall, as a minimum, begin with the letter \"S,\" and
> abbreviations for the word \"Number\" shall, as a minimum, begin with
> the letter \"N\" (e.g., S/N, SN, Ser. No, and S No.).***
>
> ***\[Nonretroactive as of January 1, 2001\]***
>
> ***(h) For devices that have an NTEP Certificate of Conformance (CC)
> Number or a corresponding CC addendum number, the NTEP CC shall be
> prefaced by the terms \"NTEP CC,\" \"CC,\" or \"Approval.\" These
> terms may be followed by the term \"Number\" or an abbreviation of
> that word. The abbreviation for the word \"Number\" shall, as a
> minimum, begin with the letter \"N\" (e.g., No or No.)***
>
> ***\[Nonretroactive as of January 1, 2003\]***
>
> **The required information shall be so located that it is readily
> observable without the necessity of the disassembly of a part
> requiring the use of any means separate from the device.**
>
> **(Amended 1985, 1991, 1999, 2000 and 200X)**

+---+----------------------------------+-------------+---------------+
| # |                                  |             |               |
| # |                                  |             |               |
| # |                                  |             |               |
| # |                                  |             |               |
|   |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
| T |                                  |             |               |
| a |                                  |             |               |
| b |                                  |             |               |
| l |                                  |             |               |
| e |                                  |             |               |
|   |                                  |             |               |
| G |                                  |             |               |
| - |                                  |             |               |
| S |                                  |             |               |
| . |                                  |             |               |
| 1 |                                  |             |               |
| . |                                  |             |               |
|   |                                  |             |               |
| I |                                  |             |               |
| d |                                  |             |               |
| e |                                  |             |               |
| n |                                  |             |               |
| t |                                  |             |               |
| i |                                  |             |               |
| f |                                  |             |               |
| i |                                  |             |               |
| c |                                  |             |               |
| a |                                  |             |               |
| t |                                  |             |               |
| i |                                  |             |               |
| o |                                  |             |               |
| n |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
|   |                                  | **Built-fo  | **Not         |
|   |                                  | r-Purpose** | Built-        |
|   |                                  |             | for-Purpose** |
|   |                                  | **I         |               |
|   |                                  | nstruments, | *             |
|   |                                  | Elements,   | *Instruments, |
|   |                                  | or          | Elements, or  |
|   |                                  | Systems**   | Systems**     |
+---+----------------------------------+-------------+---------------+
| * |                                  | **M**       | **DC^2^ or    |
| * |                                  |             | DA**          |
| N |                                  |             |               |
| a |                                  |             |               |
| m |                                  |             |               |
| e |                                  |             |               |
| , |                                  |             |               |
| i |                                  |             |               |
| n |                                  |             |               |
| i |                                  |             |               |
| t |                                  |             |               |
| i |                                  |             |               |
| a |                                  |             |               |
| l |                                  |             |               |
| s |                                  |             |               |
| , |                                  |             |               |
| o |                                  |             |               |
| r |                                  |             |               |
| t |                                  |             |               |
| r |                                  |             |               |
| a |                                  |             |               |
| d |                                  |             |               |
| e |                                  |             |               |
| m |                                  |             |               |
| a |                                  |             |               |
| r |                                  |             |               |
| k |                                  |             |               |
| o |                                  |             |               |
| f |                                  |             |               |
| t |                                  |             |               |
| h |                                  |             |               |
| e |                                  |             |               |
| m |                                  |             |               |
| a |                                  |             |               |
| n |                                  |             |               |
| u |                                  |             |               |
| f |                                  |             |               |
| a |                                  |             |               |
| c |                                  |             |               |
| t |                                  |             |               |
| u |                                  |             |               |
| r |                                  |             |               |
| e |                                  |             |               |
| o |                                  |             |               |
| r |                                  |             |               |
| d |                                  |             |               |
| i |                                  |             |               |
| s |                                  |             |               |
| t |                                  |             |               |
| r |                                  |             |               |
| i |                                  |             |               |
| b |                                  |             |               |
| u |                                  |             |               |
| t |                                  |             |               |
| o |                                  |             |               |
| r |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
| * |                                  | **M^1^**    | **DC^2^ or    |
| * |                                  |             | DA**          |
| M |                                  |             |               |
| o |                                  |             |               |
| d |                                  |             |               |
| e |                                  |             |               |
| l |                                  |             |               |
| d |                                  |             |               |
| e |                                  |             |               |
| s |                                  |             |               |
| i |                                  |             |               |
| g |                                  |             |               |
| n |                                  |             |               |
| a |                                  |             |               |
| t |                                  |             |               |
| i |                                  |             |               |
| o |                                  |             |               |
| n |                                  |             |               |
| ^ |                                  |             |               |
| 1 |                                  |             |               |
| ^ |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
| * |                                  | **M, DC, or |               |
| * |                                  | DA**        |               |
| S |                                  |             |               |
| p |                                  |             |               |
| e |                                  |             |               |
| c |                                  |             |               |
| i |                                  |             |               |
| f |                                  |             |               |
| i |                                  |             |               |
| c |                                  |             |               |
| m |                                  |             |               |
| o |                                  |             |               |
| d |                                  |             |               |
| e |                                  |             |               |
| l |                                  |             |               |
| d |                                  |             |               |
| e |                                  |             |               |
| s |                                  |             |               |
| i |                                  |             |               |
| g |                                  |             |               |
| n |                                  |             |               |
| a |                                  |             |               |
| t |                                  |             |               |
| i |                                  |             |               |
| o |                                  |             |               |
| n |                                  |             |               |
| ^ |                                  |             |               |
| 1 |                                  |             |               |
| ^ |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
| * |                                  | **M**       | **Not         |
| * |                                  |             | required**    |
| S |                                  |             |               |
| e |                                  |             |               |
| r |                                  |             |               |
| i |                                  |             |               |
| a |                                  |             |               |
| l |                                  |             |               |
| n |                                  |             |               |
| u |                                  |             |               |
| m |                                  |             |               |
| b |                                  |             |               |
| e |                                  |             |               |
| r |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
| * |                                  | **DC or     | **DC or DA**  |
| * |                                  | DA**        |               |
| R |                                  |             |               |
| e |                                  |             |               |
| v |                                  |             |               |
| i |                                  |             |               |
| s |                                  |             |               |
| i |                                  |             |               |
| o |                                  |             |               |
| n |                                  |             |               |
| n |                                  |             |               |
| u |                                  |             |               |
| m |                                  |             |               |
| b |                                  |             |               |
| e |                                  |             |               |
| r |                                  |             |               |
| o |                                  |             |               |
| r |                                  |             |               |
| S |                                  |             |               |
| o |                                  |             |               |
| f |                                  |             |               |
| t |                                  |             |               |
| w |                                  |             |               |
| a |                                  |             |               |
| r |                                  |             |               |
| e |                                  |             |               |
| V |                                  |             |               |
| e |                                  |             |               |
| r |                                  |             |               |
| s |                                  |             |               |
| i |                                  |             |               |
| o |                                  |             |               |
| n |                                  |             |               |
| n |                                  |             |               |
| u |                                  |             |               |
| m |                                  |             |               |
| b |                                  |             |               |
| e |                                  |             |               |
| r |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
| * |                                  | **M, DC, or | **DC^2^,      |
| * |                                  | DA**        | DA,**         |
| C |                                  |             |               |
| e |                                  |             |               |
| r |                                  |             |               |
| t |                                  |             |               |
| i |                                  |             |               |
| f |                                  |             |               |
| i |                                  |             |               |
| c |                                  |             |               |
| a |                                  |             |               |
| t |                                  |             |               |
| e |                                  |             |               |
| o |                                  |             |               |
| f |                                  |             |               |
| C |                                  |             |               |
| o |                                  |             |               |
| n |                                  |             |               |
| f |                                  |             |               |
| o |                                  |             |               |
| r |                                  |             |               |
| m |                                  |             |               |
| a |                                  |             |               |
| n |                                  |             |               |
| c |                                  |             |               |
| e |                                  |             |               |
| ( |                                  |             |               |
| C |                                  |             |               |
| C |                                  |             |               |
| ) |                                  |             |               |
| n |                                  |             |               |
| u |                                  |             |               |
| m |                                  |             |               |
| b |                                  |             |               |
| e |                                  |             |               |
| r |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
| * | **Physically and permanently     |             |               |
| * | marked**                         |             |               |
| M |                                  |             |               |
| : |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
| * | **Continuously displayed**       |             |               |
| * |                                  |             |               |
| D |                                  |             |               |
| C |                                  |             |               |
| : |                                  |             |               |
| * |                                  |             |               |
| * |                                  |             |               |
+---+----------------------------------+-------------+---------------+
| * | **Displayed by accessing a       |             |               |
| * | clearly identified "view only"   |             |               |
| D | System Identification, G-S.1.    |             |               |
| A | Identification, or Weights and   |             |               |
| : | Measures Identification          |             |               |
| * | accessible through the "Help"    |             |               |
| * | menu. Required information       |             |               |
|   | includes that information        |             |               |
|   | necessary to identify that the   |             |               |
|   | software in the device is the    |             |               |
|   | same type that was evaluated.**  |             |               |
+---+----------------------------------+-------------+---------------+
| * | **As a minimum, the model        |             |               |
| * | designation (positively          |             |               |
| N | identifying the pattern, design, |             |               |
| o | type, series, generic, or        |             |               |
| t | trademark designation) must be   |             |               |
| e | marked on the device. If the     |             |               |
| 1 | model designation changes with   |             |               |
| : | differing parameters such as     |             |               |
| * | size, features, options,         |             |               |
| * | intended application, not        |             |               |
|   | Handbook 44 compliant,           |             |               |
|   | construction, etc., the specific |             |               |
|   | model designation shall be       |             |               |
|   | physically marked or             |             |               |
|   | continuously displayed or be     |             |               |
|   | capable of being displayed.**    |             |               |
+---+----------------------------------+-------------+---------------+
| * | **As a minimum, either the       |             |               |
| * | manufacturer or distributor and  |             |               |
| N | the model designation, or the CC |             |               |
| o | Number shall be continuously     |             |               |
| t | displayed ~~or marked on the     |             |               |
| e | device~~. Clear instructions for |             |               |
| 2 | accessing the remaining required |             |               |
| : | G-S.1. information shall be      |             |               |
| * | listed on the CC, which may be   |             |               |
| * | available as an unaltered copy   |             |               |
|   | of the CC printed by the device  |             |               |
|   | or through another on-site       |             |               |
|   | device.**                        |             |               |
+---+----------------------------------+-------------+---------------+

**Discussion/Conclusion:** The Sector agreed with the WMD proposal in
principle, but recommended some small changes to simplify the table. The
Sector agreed to forward the following proposal for G-S.1. in tabular
format as modified at the meeting to the NCWM S&T Committee for
consideration.

Modify Handbook 44 Section 1.10 General Code paragraph G-S.1.
Identification and add Table G-S.1. as follows:

> **G-S.1. Identification. - All equipment, except weights and separate
> parts necessary to the measurement process but not having any
> metrological effect, shall be clearly marked [in accordance with Table
> G-S.1]{.underline}. for the purposes of identification, with the
> following information:**
>
> **(a) the name, initials, or trademark of the manufacturer or
> distributor;**
>
> **(b) a model designation that positively identifies the pattern or
> design of the device;**
>
> **(c) *the model designation shall be prefaced by the term \"Model,\"
> \"Type,\" or \"Pattern.\" These terms may be followed by the term
> \"Number\" or an abbreviation of that word. The abbreviation for the
> word \"Number\" shall, as a minimum, begin with the letter \"N\"
> (e.g., No or No.). The abbreviation for the word "Model" shall be
> "Mod" or "Mod."***
>
> ***\[Nonretroactive January 1, 2003\]***
>
> **(Added 2000) (Amended 2001)**
>
> ***\[Note: Prefix lettering may be initial capitals, all capitals or
> all lower case.\]***
>
> ***(d) except for equipment with no moving or electronic component
> parts and not-built-for-purpose, [microprocessor]{.underline}-based
> devices, a nonrepetitive serial number;***
>
> ***\[Nonretroactive as of January 1, 1968\]***

(e) ***for [microprocessor]{.underline}-based devices the current
    software [designation or revision number]{.underline};***

> ***(f) the serial number shall be prefaced by words, an abbreviation,
> or a symbol, that clearly identifies the number as the required serial
> number; and***
>
> ***\[Nonretroactive as of January 1, 1986\]***
>
> ***(g) the serial number shall be prefaced by the words \"Serial
> Number\" or an abbreviation of that term. Abbreviations for the word
> \"Serial\" shall, as a minimum, begin with the letter \"S,\" and
> abbreviations for the word \"Number\" shall, as a minimum, begin with
> the letter \"N\" (e.g., S/N, SN, Ser. No, and S No.).***
>
> ***\[Nonretroactive as of January 1, 2001\]***
>
> ***(h) For devices that have an NTEP Certificate of Conformance (CC)
> Number or a corresponding CC addendum number, the NTEP CC shall be
> prefaced by the terms \"NTEP CC,\" \"CC,\" or \"Approval.\" These
> terms may be followed by the term \"Number\" or an abbreviation of
> that word. The abbreviation for the word \"Number\" shall, as a
> minimum, begin with the letter \"N\" (e.g., No or No.)***
>
> ***\[Nonretroactive as of January 1, 2003\]***
>
> **The required information shall be so located that it is readily
> observable without the necessity of the disassembly of a part
> requiring the use of any means separate from the device.**
>
> **(Amended 1985, 1991, 1999, 2000 and 200X)**

## 4. Tolerance for Product Depletion Test (Carry-Over Item)

+---+------------------------------------+--------------+--------------+
| * |                                    |              |              |
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+---+------------------------------------+--------------+--------------+
|   |                                    | **Built-f    | **Not        |
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|   |                                    |              | or-Purpose** |
|   |                                    | **           |              |
|   |                                    | Instruments, | **           |
|   |                                    | Elements, or | Instruments, |
|   |                                    | Systems**    | Elements, or |
|   |                                    |              | Systems**    |
+---+------------------------------------+--------------+--------------+
| * |                                    | **M**        | **D^2^**     |
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| * |                                    |              |              |
| * |                                    |              |              |
+---+------------------------------------+--------------+--------------+
| * |                                    | **M^1^**     | **D^2^**     |
| * |                                    |              |              |
| M |                                    |              |              |
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| * |                                    |              |              |
+---+------------------------------------+--------------+--------------+
| * |                                    | **M^1^ or    |              |
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| * |                                    |              |              |
| * |                                    |              |              |
+---+------------------------------------+--------------+--------------+
| * |                                    | **M**        | **Not        |
| * |                                    |              | required**   |
| S |                                    |              |              |
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| * |                                    |              |              |
+---+------------------------------------+--------------+--------------+
| * |                                    | **Not        | **D**        |
| * |                                    | Required**   |              |
| R |                                    |              |              |
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| v |                                    |              |              |
| i |                                    |              |              |
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| * |                                    |              |              |
| * |                                    |              |              |
+---+------------------------------------+--------------+--------------+
| * |                                    | **M or D**   | **D^2^**     |
| * |                                    |              |              |
| C |                                    |              |              |
| e |                                    |              |              |
| r |                                    |              |              |
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| i |                                    |              |              |
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| c |                                    |              |              |
| e |                                    |              |              |
| ( |                                    |              |              |
| C |                                    |              |              |
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| ) |                                    |              |              |
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| * |                                    |              |              |
| * |                                    |              |              |
+---+------------------------------------+--------------+--------------+
| * | **Physically and permanently       |              |              |
| * | marked**                           |              |              |
| M |                                    |              |              |
| : |                                    |              |              |
| * |                                    |              |              |
| * |                                    |              |              |
+---+------------------------------------+--------------+--------------+
| * | **Either: (1) displayed by         |              |              |
| * | accessing a clearly identified     |              |              |
| D | "view only" System Identification, |              |              |
| : | G-S.1. Identification, or Weights  |              |              |
| * | and Measures Identification        |              |              |
| * | accessible through the "Help"      |              |              |
|   | menu. Required information         |              |              |
|   | includes that information          |              |              |
|   | necessary to identify that the     |              |              |
|   | software in the device is the same |              |              |
|   | type that was evaluated, or (2)    |              |              |
|   | continuously displayed. Note: *For |              |              |
|   | revision or software version       |              |              |
|   | number, clear instructions for     |              |              |
|   | accessing this information shall   |              |              |
|   | be listed on the CC in lieu of the |              |              |
|   | "Help" menu. Required information  |              |              |
|   | includes that information          |              |              |
|   | necessary to identify that the     |              |              |
|   | software in the device is the same |              |              |
|   | or subsequent type that was        |              |              |
|   | evaluated.***                      |              |              |
+---+------------------------------------+--------------+--------------+
| * | **As a minimum, the model          |              |              |
| * | designation (positively            |              |              |
| N | identifying the pattern, design,   |              |              |
| o | type, series, generic, or          |              |              |
| t | trademark designation) must be     |              |              |
| e | marked on the device. If the model |              |              |
| 1 | designation changes with differing |              |              |
| : | parameters such as size, features, |              |              |
| * | options, intended application, not |              |              |
| * | Handbook 44 compliant,             |              |              |
|   | construction, etc., the specific   |              |              |
|   | model designation shall be         |              |              |
|   | physically marked or continuously  |              |              |
|   | displayed or be capable of being   |              |              |
|   | displayed.**                       |              |              |
+---+------------------------------------+--------------+--------------+
| * | **As a minimum, either the         |              |              |
| * | manufacturer or distributor and    |              |              |
| N | the model designation, or the CC   |              |              |
| o | Number shall be continuously       |              |              |
| t | displayed. Clear instructions for  |              |              |
| e | accessing the remaining required   |              |              |
| 2 | G-S.1. information shall be listed |              |              |
| : | on the CC, which may be available  |              |              |
| * | as an unaltered copy of the CC     |              |              |
| * | printed by the device or through   |              |              |
|   | another on-site device.**          |              |              |
+---+------------------------------------+--------------+--------------+
| * |                                    |              |              |
| * |                                    |              |              |
| ( |                                    |              |              |
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| e |                                    |              |              |
| 2 |                                    |              |              |
| 0 |                                    |              |              |
| 0 |                                    |              |              |
| 5 |                                    |              |              |
| ) |                                    |              |              |
| * |                                    |              |              |
| * |                                    |              |              |
+---+------------------------------------+--------------+--------------+

**Source:** Carry-Over Item

**Background:** At the September 2001 Measuring Sector Meeting there was
a discussion of agenda item 5 comparing single-compartment testing to
split-compartment testing. A member suggested that it would be
appropriate to have separate tolerances for a product depletion test.
The Sector agreed to discuss that as a separate agenda item if time
permitted. During further discussion of the need for specific tolerances
for a product depletion test, a member pointed out that the present
criteria is affected by the test draft size. It is possible for a meter
to fail at particular draft size; and by sufficiently increasing the
draft size for a subsequent test, the same meter could pass without any
repairs or adjustments being made. Ross Anderson (NY) indicated that
NEWMA had developed a proposal to the tolerance for a product depletion
test on the rated maximum flow rate for the meter. That proposal was not
available for review. The Sector agreed to include the discussion of a
product depletion test tolerance on the agenda for the next Sector
meeting. Ross Anderson agreed to prepare a proposal for Sector
consideration at that meeting.

Since the 2001 meeting New York has begun a study to compare the results
of a product depletion test conducted on the same meter using different
size provers. Mr. Anderson was to update the Sector at its 2002 Meeting
on the progress of the study and to provide guidance to the Sector on
how to proceed.

Mr. Anderson was unable to attend the 2002 Sector meeting. The Sector
did review the proposal from NEWMA to modify N.4.2. and to add new
paragraphs N.4.5. and T.5. shown below. Several Sector members disagreed
with the NEWMA proposal for a tolerance based on a one minute flow at
the maximum flow rate for the device under test. The Sector believes
that the allowable error for a product depletion test should not be
dependent on the size of the test draft. The Sector agreed that the item
should be carried over to the agenda for the next Sector meeting to
allow time for completion of the study being conducted by New York.

**Discussion:** The following proposal to modify N.4.2. Special Tests
(except Milk Metering Systems) and add a new paragraph N.2.5. Product
Depletion Test was forwarded to the NCWM S&T from the Northeastern
Weights and Measures Association (NEWMA).

> **N.4.2. - Special Tests (except Milk Metering Systems). "Special"
> tests shall be made to develop the operating characteristics of a
> measuring system and any special elements and accessories attached to
> or associated with the device. Any test except as set forth in N.4.1.
> or N.4.5. shall be considered a special test. Special test of a
> measuring system shall be made as follows:**
>
> **(a) at a minimum discharge rate of 20 percent of the marked maximum
> discharge rate or at the minimum rate marked on the device whichever
> is less,**
>
> **(b) to develop operating characteristics of the measuring system
> ~~during a split-compartment delivery~~.**
>
> **(Amended 1978)**
>
> **[N.4.5. Product Depletion Test - The effectiveness of the vapor
> eliminator shall be tested by depleting the product supply and
> continuing the test until the lack of fluid causes the meter register
> to stop absolutely. The test shall be completed by switching to
> another compartment with sufficient product on a multi-compartment
> vehicle or by adding sufficient product to a single-compartment
> vehicle. When adding product to a single-compartment vehicle, allow
> appropriate time for any entrapped vapor to disperse before continuing
> the test.]{.underline}**
>
> **[T.5. Product Depletion Test -- The difference between the results
> of the normal test and the product depletion test shall not exceed 0.5
> percent of the equivalent of one minute of flow at the maximum rated
> flow rate for the system.]{.underline}**

WMD provided information to the Sector showing that in 1974 the NCWM S&T
Committee developed a proposal to amend the split-compartment test
tolerance to be based on the manufacturer's maximum flow rate rather
than on the size of the prover used during the test. The item was
adopted by the NCWM but apparently Handbook 44 was never amended to
reflect the change. The following was excerpted from the 1974 Final
Report of the NCWM S&T Committee:

**CODE FOR VEHICLE TANK METERS**

> 1\. Split-Compartment Test Tolerances. - Over the last several years,
> the committee has received numerous comments that the tolerances
> applicable when conducting a split-compartment test on a vehicle-tank
> meter are impractical. The existing tolerances are based on the
> capacity of the prover used in the test; however, the error resulting
> from this test is not a function of prover capacity but rather it is
> related to the rate of flow and the system itself. The committee
> agrees with these comments and recommends changing these tolerances by
> amending the Vehicle-Tank Meter Code as follows:
>
> Add the following new table T.2.:

+-----------------------------------+-----------------------------------+
| **TABLE 2.-TOLERANCES FOR VEHICLE |                                   |
| TANK METERS**                     |                                   |
|                                   |                                   |
| **ON SUPPLY EXHAUSTION TESTS      |                                   |
| EXCEPT MILK METERS**              |                                   |
+-----------------------------------+-----------------------------------+
| > **Manufacturer's rated          | > **Maintenance and**             |
| > capacity**                      | >                                 |
| >                                 | > **acceptance tolerances**       |
| > **(Maximum gpm)**               |                                   |
+-----------------------------------+-----------------------------------+
| > **Up to** **125**               | > **125** in^3^                   |
+-----------------------------------+-----------------------------------+
| > **126-250**                     | > **200** in^3^                   |
+-----------------------------------+-----------------------------------+
| > **251-500**                     | > **300 in^3^**                   |
+-----------------------------------+-----------------------------------+
| > **Over** **500**                | > **400** in^3^                   |
+-----------------------------------+-----------------------------------+

> **Amend T.2. to include Table 3 and renumber present Table 2 to Table
> 3.**
>
> To further clarify this table, the tolerances listed are applied from
> "0" (zero)---not added to the error found during a normal test.
>
> Since these requirements are applicable to wholesale devices in the
> LMD Code, appropriate amendments are recommended to be made to that
> code.
>
> (The foregoing item was adopted by voice vote.)

Measurement Canada provided its split-compartment or out-of-product test
procedure as follows.

**Module 6b: Standard Test Procedures**

7.  **Split-Compartment Or Out-of-Product**

> **Purpose**
>
> A split-compartment test verifies the proper operation of air
> elimination means when the storage tank for the product being measured
> is pumped dry. This test is only necessary for meters that normally
> drain a tank completely, such as vehicle-mounted meters and
> milk-receiving systems.
>
> **Procedure**
>
> For a multi-compartment tank:

-   At the normal operating rate of the meter, start the test from a
    compartment containing less test liquid than the capacity of the
    prover.

-   Continue the pumping until the lack of liquid supply causes the
    register to stop or until a maximum of 30 seconds has elapsed.

-   Without shutting off the pump, open the valve from a compartment
    with sufficient liquid to complete the test and then shut the valve
    from the empty compartment.

-   Continue the delivery until the liquid level is in the readable
    portion of the prover neck.

-   Compare the meter registration to the volume actually delivered into
    the prover. The difference (minus any meter error previously
    identified at the same rate of flow) is the error in the system
    under compartment switching conditions.

> **Rationale 8: Interpretation of Results**
>
> **Rule 1:** The limit of error (LOE) between a fast test and a split
> test is the absolute value of the limit of error applicable to the
> meter.
>
> In the case of a meter of a size of 65 mm (2.5 inches) or smaller, the
> absolute value of the limit of error for the split test only is based
> on a test volume of 900 liters (2.25 liters).
>
> In the case of a meter of a size 75 mm (3 inches) or larger, the
> absolute value of the limit of error for the split test only is based
> on a test volume of 1500 liters (3.75 liters)
>
> **NOTE:** These LOEs were agreed to at the Specialists meeting in
> February 1990.

  --------------------------------------- ----------------- -----------------
  **Example: 2-inch Truck-Mounted Meter**                   

  **Prover Size**                         500 liters        900 liters

  Rule 1: LOE                             [+]{.underline}   [+]{.underline}
                                          1.25 liters       2.25 liters

  Maximum difference between the split    [+]{.underline}   [+]{.underline}
  test and the fast test if the split     2.25 liters       2.25 liters
  test error exceeds the 0.25 % LOE                         
  --------------------------------------- ----------------- -----------------

> For a single-compartment tank, this test can only be performed where
> there is a quick-connect hose coupling upstream of the meter:

-   Make a partial delivery from a flooded, primed system.

-   During the delivery, close the outlet valve from the tank.

-   Break the hose connection, if possible, and let the pump drain the
    line.

-   Continue the test until the lack of liquid supply causes the
    register to stop or until a maximum of 30 seconds has elapsed.

-   Reconnect the sully line, open the valve, and complete the filling
    of the prover.

-   Compare the meter register to the volume actually delivered into the
    prover. The difference (minus any meter error previously identified
    at the same rate of flow) is the error in the system under
    compartment switching conditions.

> See interpretation of Results in Rationale 8.

**Variation**

-   Gravity discharge meter.

-   The split-compartment test is the same for gravity discharge meters
    except there is no pump in the system.

At its October 2003 Meeting, the Sector reviewed and discussed the
various procedures above. The Sector agreed that the change to Handbook
44 adopted at the 1974 NCWM which recommended that Table 2. --
Tolerances For Vehicle-Tank Meters on Supply Exhaustion Tests Except
Milk Meters be added to 3.31. Vehicle-Tank Meters code appeared to be
technically correct and would be a good solution for addressing the
concerns of tolerances that vary based on the size of the test draft.
Charlene Numrych (Liquid Controls) stated that the maximum tolerance of
400 in^3^ in the 1974 Table is not realistic for some of the larger
meter sizes Liquid Controls currently produces. Charlene recommended
that additional ranges of 500 to 750 gallon per minute and over 750
gallons per minute be added to the table.

**Conclusion:** The Sector agreed that an additional flow rate
designation should be added to the table and to forward the following
amended proposal to modify NIST Handbook 44, Section 3.31 Vehicle-Tank
Meters to the NCWM S&T Committee for consideration.

> **N.4.2. Special Tests (Except Milk-Measuring Systems). "Special"
> tests shall be made to develop the operating characteristics of a
> measuring system and any special elements and accessories attached to
> or associated with the device. Any test except as set forth in N4.4.1.
> [or N.4.5.]{.underline} shall be considered a special test. Special
> tests of a measuring system shall be made as follows:**
>
> **(a) at a minimum discharge rate of 20 percent of the marked maximum
> discharge rate or at the minimum discharge rate marked on the device,
> whichever is less;**
>
> **(b) to develop operating characteristics of the measuring system
> ~~during a split compartment delivery.~~**

Add new paragraphs N.4.5. Product Depletion Test, T.5. Product Depletion
Test, and Table T.5. Tolerances for Vehicle-Tank Meters on Product
Depletion Tests Except Milk Meters

> **N.4.5. Product Depletion Test. - The effectiveness of the vapor
> eliminator shall be tested by depleting the product supply and
> continuing until the lack of fluid causes the meter register to stop
> completely. The test shall be completed by switching to another
> compartment with sufficient product on a multi-compartment vehicle, or
> by adding sufficient product to a single-compartment vehicle. When
> adding product to a single- compartment vehicle, allow appropriate
> time for any entrapped vapor to disperse before continuing the test.**
>
> **T.5. Product Depletion Test. - The difference in the delivered
> volumes for the normal test and the product depletion test shall not
> exceed the tolerance shown in Table T.5.,and all test results shall be
> within applicable tolerances.**

+-----------------------------------+-----------------------------------+
| **TABLE T.5. TOLERANCES FOR       |                                   |
| VEHICLE-TANK METERS**             |                                   |
|                                   |                                   |
| **ON PRODUCT DEPLETION TESTS      |                                   |
| EXCEPT MILK METERS**              |                                   |
+-----------------------------------+-----------------------------------+
| > **Manufacturer's rated capacity | > **Maintenance and acceptance    |
| > (Maximum gpm)**                 | > tolerances**                    |
+-----------------------------------+-----------------------------------+
| > **Up to** **125**               | > **125** in^3^                   |
+-----------------------------------+-----------------------------------+
| > **126-250**                     | > **200** in^3^                   |
+-----------------------------------+-----------------------------------+
| > **251-500**                     | > **300 in^3^**                   |
+-----------------------------------+-----------------------------------+
| > **501 to 750**                  | > **400** in^3^                   |
+-----------------------------------+-----------------------------------+
| > **Over 751**                    | > **600** in^3^                   |
+-----------------------------------+-----------------------------------+

## 5. Marking of Meters that have no External Moving Parts - UR.2.5. Product Identification (Carry-Over Item)

**Source:** Returned from NCWM S&T Committee

**Background:** At the June 2002 NTEP Laboratory Meeting, one of the
participating laboratories indicated that field officials in their
jurisdiction are sometimes not able to determine which measuring element
is associated with a particular grade or blend of fuel on multi-product
dispensers. During a field examination of a multi-product dispenser, one
grade or blend is rejected for not meeting performance requirements. The
official does not know which measuring element to mark or tag as
rejected. During the performance of a subsequent inspection following
adjustment or repair of the device, the field official may be required
to test all grades and blends offered through the rejected dispenser to
determine that the correct measuring element and only that element was
adjusted. At the 2002 Sector Meeting the Sector developed a proposal
that was forwarded to the S&T Committee for consideration.

**Recommendation:** Modify NIST Handbook 44, Section 3.30.
Liquid-Measuring Devices UR.2.5.

> **UR.2.5. Product ~~Storage~~ Identification**
>
> **[UR.2.5.1. Measuring Element Identification]{.underline}**
>
> **[(a) For multi-product dispensers, any measuring element with no
> external part(s) that move during delivery shall be plainly and
> visibly identified as to the grade, blend, or mixture of product being
> dispensed through the element.]{.underline}**
>
> **[(b) When the measuring elements of any multi-product dispenser are
> marked by means of a color code, the color key shall be conspicuously
> displayed at the place of business and be consistent with any color
> code used for product storage.]{.underline}**
>
> **UR.2.5.2. Product Storage Identification**
>
> **[(a) The fill connection for any petroleum product storage tank or
> vessel supplying motor-fuel devices shall be permanently, plainly, and
> visibly marked as to product contained.]{.underline}**
>
> **[(b) When the fill connection device is marked by means of a color
> code, the color code key shall be conspicuously displayed at the place
> of business.]{.underline}**
>
> **(Added 1975 and Amended 1976 and renumbered 200X)**

**Discussion/Conclusion:** Mike Belue (Belue Associates) reported that
at its September 2003 Interim Meeting, the Central Weights and Measures
Association (CWMA) recommended that the NCWM S&T Committee withdraw this
item from its agenda because it places an extra burden on users without
benefit to regulators unless there is only one seal that protects
multiple measuring elements. The CWMA further believes that this is an
enforcement issue in only a few jurisdictions. The Sector voted to
recommend that the NCWM S&T Committee withdraw this item from its
agenda. The voting results were as follows: in favor of the
recommendation to withdraw -- 8; opposed to the recommendation to
withdraw -- 0; abstaining on the issue -- 7.

## 6. Multiple Measuring Elements with a Single Provision for Sealing (Carry-Over Item)

**Source:** Mike Belue (Belue Associates), NCWM S&T Committee

**Background:** At the June 2002 NTEP Laboratory Meeting, one of the
participating laboratories indicated that field officials in their
jurisdiction are having difficulty with multi-product dispensers that
have only one sealing mechanism for two or more measuring elements. If a
field official rejects a meter for not meeting performance requirements,
the field official has no way of determining which measuring elements
have been recalibrated when returning to re-inspect the dispenser after
a service agency has made adjustments or repairs on the rejected device.
During the performance of a subsequent inspection following adjustment
or repair of the device, the field official may be required to test all
grades and blends offered through the rejected dispenser to determine
that only the correct measuring element was adjusted.

At its October 2002 meeting, the NTETC Measuring Sector developed the
following proposal to address the concern with retail motor-fuel
dispensers that have only one sealing mechanism that provides the
adjustment security for multiple measuring elements. The Sector agreed
to forward the proposal to the S&T Committee for consideration.

At its October 2002 Annual Meeting, the SWMA recommended the proposal to
add a new paragraph to NIST Handbook 44, Section 3.30. Liquid-Measuring
Devices paragraph S.2.2.1. be forwarded to the NCWM S&T Committee as an
information item.

**Recommendation:** Add new paragraph to NIST Handbook 44, Section 3.30.
Liquid-Measuring Devices S.2.2.1. Multiple Measuring Elements with a
Single Provision for Sealing as follows:

> **S.2.2.1. Multiple Measuring Elements with a Single Provision for
> Sealing. - A change to the adjustment of any measuring element within
> any multi-product dispenser with a single provision for sealing
> multiple measuring elements must be identified.**

**Discussion:** At the 2003 NCWM Interim Meeting, the S&T Committee
heard support for identifying, in a manner that is readily available to
the field official, any measuring element that is adjusted and agreed
that the item has merit. Device manufacturers present at the meeting
stated that identifying any measuring element that is adjusted is
possible on dispensers that have only one sealing mechanism for two or
more measuring elements. The manufacturers requested time to develop an
appropriate mechanism for providing that information. The Committee gave
the item informational status to provide device manufacturers the
opportunity to study the issue and develop means for meeting the
proposed requirements.

At the 2003 NCWM Annual Meeting, the Committee heard from one of the
major RMFD manufacturers that his company is investigating ways to
address this problem and provide the necessary calibration information
to field officials. The Committee agreed to continue the item's
information status to provide the manufacturers additional time to
develop a mechanism for making calibration information for each
measuring element within a multi-product dispenser with a single
provision for sealing available to the field official.

At its October 2003 Meeting, the Sector reviewed its original proposal.
Mike Belue (Belue Associates) reported that the CWMA recommended that
the NCWM S&T Committee withdraw this item from its agenda as it will
place an undue burden on current retailers and not significantly help
enforcement officials. Mike further reported that the Western Weights
and Measures Association (WWMA) referred the item to the Measuring
Sector for further development. The Sector agreed that on a dispenser
with a separate sealing mechanism for each measuring element it is
normally apparent when a seal is broken. The Sector further agreed that
it should be equally apparent when an adjustment is made to any of the
measuring elements when only a single mechanism provides security for
more than one measuring element.

**Conclusion:** The Sector modified S.2.2.1. at the meeting and agreed
to forward the following recommendation to the NCWM S&T Committee for
consideration.:

Add a new paragraph to NIST Handbook 44, Section 3.30. Liquid-Measuring
Devices S.2.2.1. Multiple Measuring Elements with a Single Provision for
Sealing as follows:

### ~~S.2.2.1. Multiple Measuring Elements with a Single Provision for Sealing. - A change to the adjustment of any measuring element~~ within any multi‑product dispenser with a single provision for sealing multiple measuring elements must ~~[shall]{.underline} be identified.~~

## 7. Update LMD Section of Publication 14, NTEP Laboratory Recommendations for Changes to NCWM Publication 14 (New Item)

**Source:** NTEP Laboratories

**Background:** At the June 2002 NTEP Laboratory Meeting, the
laboratories reviewed the Field Evaluation and Permanence Tests for
Metering Systems Section "A" through "J" of the 2003 Edition of
Publication 14 for Measuring Devices. The labs agreed that the same
testing criteria should apply regardless of meter technology. There was
consensus that for all meters, except retail motor-fuel dispensers,
where possible (if temperature can be varied) a test criteria that is in
harmony with the Measurement Canada criteria should be adopted. Where
the temperature cannot be varied, all meters except retail motor-fuel
dispensers should be tested with 4 drafts at each of 5 flow rates. The
labs agreed to submit a recommendation for modifying Publication 14 for
consideration at this Measuring Sector Meeting.

**Recommendation:** Modify NCWM Publication 14 as shown in the following
items:

> Permanence Test Procedures for Meters
>
> A. Field Evaluation and Permanence Test of New Design Meters in Retail
> Motor-Fuel Dispensers
>
> **All new design meters are subject to a permanence test. If a meter
> is the same as one in a previously tested dispenser, a permanence test
> is not required ~~unless a problem has been detected~~. [NTEP reserves
> the right to require a permanence test based on the result of the
> initial examination.]{.underline}**
>
> Initial Examination
>
> **1. All meters of the new type installed at the type evaluation
> location are subject to examination. At least two meters must be
> tested.**
>
> **2. At least one meter will be chosen for throughput testing on each
> of two major products (e.g., unleaded gasoline and diesel fuel). The
> minimum number of tests for each of these two meters will include the
> following:**
>
> **• Five tests at the fast flow rate**
>
> **• ~~Two~~ [Three]{.underline} tests at a midrange flow rate**
>
> **• Five tests at the slow flow rate**
>
> **At least five tests at both the fast and slow flow rates and ~~two~~
> [three]{.underline} midrange flow rate tests will be run on each of
> these two meters. Only one test at each flow rate need be run on any
> remaining meters. If both products are not available for the type
> evaluation, the test may be performed using one product and a
> Provisional Certificate of Conformance may be issued for the one
> product. The test using the other product may be performed at a later
> date to result in a full Certificate of Conformance.**
>
> **3. All meters must perform within acceptance tolerance.**
>
> **4. Repeatability - When consecutive multiple tests are conducted at
> approximately the same flow rate, the range of the test results for
> the flow rate shall not exceed 40 percent of the absolute value of the
> maintenance tolerance.**
>
> Subsequent Examination
>
> **1. All meters of the new type installed at the type evaluation
> location must perform within acceptance tolerance throughout the time
> and volume period specified below.**

2.  **The examination will be conducted no sooner than 20 days after the
    initial examination and not before the previously chosen meters have
    measured at least 20 000 gallons for throughput testing.**

3.  **Five tests at both fast and slow flow rates and ~~two~~
    [three]{.underline} midrange flow rate tests will be made on the
    throughput meters. Only one test at each flow rate needs to be
    performed on any remaining meters.**

> **[4. Repeatability - When consecutive multiple tests are conducted at
> approximately the same flow rate, the range of the test results for
> the flow rate shall not exceed 40 percent of the absolute value of the
> maintenance tolerance.]{.underline}**
>
> B. Field Evaluation and Permanence Test of Retail Motor-Fuel
> Dispensers Using Previously Evaluated Meters
>
> **Dispensers using a previously type-evaluated meter will be subject
> to a permanence test. This will not be an extensive test of the meter,
> but the meter must remain within acceptance tolerance throughout the
> permanence test of 20 -- to 30 days\' duration. The meter will receive
> significant use during this test, but it will not be required to
> deliver 20 000 gallons. At least one dispenser will be subjected to
> the permanence test. The accuracy tests are the same as those for new
> design meters in retail motor-fuel dispensers.**
>
> C. Field Evaluation and Permanence Test for Vehicle-Tank Meters, ~~and
> Wholesale Meters~~ [Except for LPG, Cryogenic, and CO^2^
> Meters]{.underline}
>
> **The following tests are considered to be appropriate for
> vehicle-tank metering systems and except for the vapor or air
> eliminator test are considered appropriate for wholesale meters:**
>
> **• ~~Three tests at the maximum discharge rate.~~ [Four test drafts
> at each of five flow rates.]{.underline}**
>
> **~~• Three intermediate flow tests.~~**
>
> **~~• Three slow-flow tests.~~**
>
> **• One vapor or air eliminator (product depletion) test.**
>
> **Note: The normal test of a measuring system shall be made at the
> maximum discharge rate that may be anticipated under the conditions of
> the installation. Any additional tests conducted at flow rates down to
> and including one-half the sum of the maximum discharge flow rate and
> the rated minimum discharge flow rate shall be considered normal
> tests. (Code Reference N.4.1.)**
>
> **Only one meter is required for the initial test, and after the test
> the meter will be placed into service for the permanence test. The
> ~~following~~ minimum throughput criterion ~~is recommended~~ for
> these meters~~:~~ [is the]{.underline} ~~M~~[m]{.underline}aximum
> rated flow ~~rate~~ in units per minute x 2000. [(Canada requires
> maximum flow rate x 6000.)]{.underline}**
>
> **Following the period of use, the tests listed above are to be
> repeated. All results must be within acceptance tolerances.**
>
> Repeatability on Vehicle-Tank Meters (Code Reference T.4.)
>
> **When multiple tests are conducted at approximately the same flow
> rate, the range of the test results for the flow rate shall not exceed
> 40 percent of the absolute value of the maintenance tolerance, and the
> results of each test shall be within the applicable tolerance.**
>
> **Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors, such as
> temperature, pressure, and flow rate, are reduced to the extent that
> they will not affect the results obtained.**
>
> ~~Split Compartment~~ [Product Depletion Test]{.underline}
>
> **Before vehicle-mounted applications are listed on an NTEP
> Certificate of Conformance, the meter must pass a ~~split
> compartment~~ [product deletion]{.underline} test. This policy applies
> to all meter technologies (e.g., Coriolis mass flow meters, turbine
> meters, positive displacement meters) even if the meter will never be
> installed on trucks with more than a single compartment. The
> permanence test still applies to include the throughput with a
> duration of a least 20 days. Ideally, this test should be performed
> with a multiple-compartment vehicle; however, a single-compartment
> vehicle may be used to simulate the ~~split-compartment~~ [product
> depletion]{.underline} test by running the tank empty; if a
> multiple-compartment vehicle is unavailable, a single-compartment
> vehicle may be used to simulate the product depletion test by running
> the tank empty.**
>
> **Purpose: A product depletion test verifies the proper operation of
> air elimination means when the storage tank for the product being
> measured is pumped dry. This test is necessary for meters that may
> drain a tank completely, such as a vehicle-tank meter.**
>
> Test Procedure: (no change)
>
> D. Wholesale Meters
>
> Tests of Automatic Temperature-Compensating Systems on Wholesale
> Meters (Code Reference T.2.3.4.)
>
> **The difference between the meter error for results determined with
> and without the automatic temperature-compensating system activated
> shall not exceed:**
>
> **1. 0.2 percent of the test draft for mechanical automatic
> temperature-compensating systems; and**
>
> **2. 0.1 percent of the test draft for electronic automatic
> temperature-compensating systems.**
>
> **The results of each test shall be within the applicable
> \"acceptance\" or maintenance tolerance.**
>
> ~~E.~~ Repeatability on Wholesale Meters (Code Reference T.2.3.3.)
>
> **When multiple tests are conducted at approximately the same flow
> rate, the range of the test results for the flow rate shall not exceed
> 40 percent of the absolute value of the maintenance tolerance, and the
> results of each test shall be within the applicable tolerance. This
> tolerance does not apply to the test of the automatic
> temperature-compensating system.**
>
> **Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors, such as
> temperature, pressure, and flow rate, are reduced to the extent that
> they will not affect the results obtained.**
>
> ~~F.~~ ~~Repeatability on Vehicle-Tank Meters (Code Reference T.4.)~~
>
> **~~When multiple tests are conducted at approximately the same flow
> rate, the range of the test results for the flow rate shall not exceed
> 40 percent of the absolute value of the maintenance tolerance, and the
> results of each test shall be within the applicable tolerance.~~**
>
> **~~Tests for repeatability shall include a minimum of three
> consecutive test drafts of approximately the same size and be
> conducted under controlled conditions where variations in factors,
> such as temperature, pressure, and flow rate, are reduced to the
> extent that they will not affect the results obtained.~~**
>
> ~~G.~~ [E.]{.underline} Field Evaluation and Permanence Test For LPG
> and Cryogenic Meters
>
> **~~As adopted at the 1985 NCWM, the~~ [The]{.underline} following
> tests are considered to be appropriate for metering systems on LPG and
> cryogenic meters:**
>
> **~~1. Three tests at the maximum discharge rate.~~ [Four test drafts
> at each of five flow rates.]{.underline}**
>
> **~~2. Three intermediate flow tests.~~**
>
> **~~3. Three slow-flow tests.~~**
>
> **Only one meter is required for the initial test, after which the
> meter will be placed into service for the permanence test. The
> ~~following~~ minimum throughput criterion ~~is recommended~~ for
> these meters~~:~~ [is the maximum rated flow in units per minute x
> 2000. (Canada requires maximum flow rate x 6000.)]{.underline}**
>
> **~~1. Maximum rated flow rate x 1500 for meters rated at 227 Lpm (60
> gpm) or greater.~~**
>
> **~~2. Maximum rated flow rate x 500 for meters rated less than 227
> Lpm (60 gpm).~~**
>
> **~~3. Based upon California weights and measures experience, this
> corresponds to 30-60 days. The time period is considered appropriate
> because these meters have a history of becoming inaccurate more
> frequently than meters for other fuels.~~**
>
> **Following the period of use, the tests listed above are to be
> repeated. All results must be within acceptance tolerances.**
>
> ~~H.~~ Repeatability on LPG & NH3 Meters (Code Reference T.3.)
>
> **When multiple tests are conducted at approximately the same flow
> rate, the range of the test results for the flow rate shall not exceed
> 40 percent of the absolute value of the maintenance tolerance and the
> results of each test shall be within acceptance tolerance. This
> tolerance does not apply to the test of the automatic
> temperature-compensating system.**
>
> **Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors, such as
> temperature, pressure, and flow rate, are reduced to the extent that
> they will not affect the results obtained.**
>
> **Note: Stable temperature and pressure indications are necessary
> during the entire repeatability test to achieve good test results. For
> multiple drafts to determine repeatability, the following conditions
> shall be maintained;**
>
> **1. The range of flow rates shall not exceed 5 percent of the first
> test draft.**
>
> **2. The range of temperatures at the meter shall not exceed 1 °C (2
> °F).**
>
> **3. The range of pressure shall not exceed 68.95 Kpa, or 10 PSI.**
>
> **4. The temperature difference between the meter and the prover shall
> not exceed 1 ° C (2 °F).**
>
> **If these conditions cannot be met, repeatability tolerances shall
> not be applied. Repeatability tests must include at least three
> consecutive test drafts.**
>
> ~~I.~~ Tests of Automatic Temperature-Compensating Systems - LPG & NH3
> Meters
>
> **The difference between the meter error for results determined with
> and without the automatic temperature-compensating system activated
> shall not exceed:**
>
> **1. 0.5 % of the test draft for mechanical automatic
> temperature-compensating systems; and**
>
> **2. 0.25 % of the test draft for electronic automatic
> temperature-compensating systems.**
>
> **The results of each test shall be within the applicable
> \"acceptance\" or maintenance tolerance.**
>
> ~~J.~~ [F.]{.underline} Field Evaluation and Permanence Test for LPG
> Vapor Meters
>
> **The following tests are to be run on an LPG vapor meter as part of
> the permanence test:**
>
> **1. Three tests at the maximum discharge rate.**
>
> **2. Three slow-flow tests.**
>
> **3. One low-flame test.**
>
> **Only one meter will be required for the initial test, after which
> the meter must have air or product passed through it as part of the
> permanence test. The amount of air or product shall be at least the
> maximum flow rate times 1000. California Weights and Measures performs
> this test in approximately 60 days. Although it is longer than the
> usual 30-day test, this is considered appropriate because these meters
> are usually tested only every ten years.**
>
> **Following the period of accelerated use, the tests listed above are
> to be repeated. All results must be within acceptance tolerances.**
>
> ~~K.~~ [G.]{.underline} Repeatability on Milk Meters (Code References
> N.4.1.1. and T.3.)
>
> **When multiple tests are conducted at approximately the same flow
> rate and draft size, the range of the test results for the flow rate
> shall not exceed 40 percent of the absolute value of the maintenance
> tolerance and the results of each test shall be within the applicable
> tolerance.**
>
> Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors, such as
> temperature, pressure, and flow rate are reduced to the extent that
> they will not affect the results obtained.
>
> ~~L.~~ [H.]{.underline} Field Evaluation and Permanence Test For
> Turbine Meters
>
> **The following tests are considered to be appropriate for turbine
> meters:**
>
> **1. Meters tested in a laboratory environment will be tested five
> times at each of four different flow rates, using varsol or water for
> both the initial and the follow-up evaluation to establish
> \"baseline\" data for the meter\'s performance. A Certificate of
> Conformance may be issued for the product(s) tested in the laboratory;
> however, additional products will not be included until testing is
> completed with these products. After a \"baseline\" is obtained,
> products can be included on the Certificate of Conformance by
> performing three tests at each of four different flow rates in the
> field for both the initial and follow-up evaluation. If a meter is
> tested in the field without first determining a \"baseline,\" the
> meter must undergo ~~five~~ [four]{.underline} tests at each of
> ~~four~~ [five]{.underline} different flow rates; this criteria
> applies for both the initial and follow-up test.\"**
>
> **2. At least one meter is required for each product type for the
> initial test.**
>
> **3. If the meter is to be used with products other than gasoline and
> diesel fuel, the manufacturer must also submit data to indicate meter
> performance over the range of viscosity of products to be used with
> the meter.**
>
> **4. To indicate meter performance over the temperature range in which
> the meter is anticipated to be used, data must also be submitted.**
>
> **5. Following the initial test, the meters will be placed into
> service for the permanence test. The ~~following~~ minimum throughput
> criterion ~~is recommended~~ for these meters [is the]{.underline}
> maximum rated flow ~~rate~~ [in units per minute]{.underline} x 2000.
> [(Canada requires maximum flow rate x 6000.)]{.underline}**
>
> **6. Following the period of use, the tests listed above are to be
> repeated. All results must be within acceptance tolerances. Following
> evaluation of test data and analysis of the data presented by the
> manufacturer for meter performance over temperature and viscosity
> ranges, the evaluating laboratory may require additional testing prior
> to issuing a Certificate of Conformance for the meter.**
>
> ~~M.~~ [I.]{.underline} Permanence Tests for Mass Flow Meters
>
> **The following tests are considered to be appropriate for mass flow
> meters:**
>
> **Type evaluation**. **The gravimetric test method shall be used for
> type evaluation for meters indicating only in units of mass and may be
> used for meters indicating in units of volume. Meters indicating in
> only units of volume may be tested using a volumetric standard.**
>
> **Gravimetric Standard**. (no change)
>
> **Test Drafts.** (no change)
>
> **Test Data.** **Meters tested in a laboratory environment will be
> tested ~~five~~ [four]{.underline} times at each of
> ~~four~~[five]{.underline} different flow rates. Use the product
> available in the laboratory for both the initial and the follow-up
> evaluation to establish \"baseline\" data for the meter\'s
> performance. A Certificate of Conformance may be issued for the
> product(s) tested in the laboratory; however, additional products will
> not be included on the Certificate until testing is completed with
> those products. After a \"baseline\" is obtained, products can be
> included on the Certificate of Conformance by performing three tests
> at each of four different flow rates in the field for both the initial
> and follow-up evaluation. If a meter is tested in the field without
> first determining a \"baseline,\" the meter must undergo ~~five~~
> [four]{.underline} tests at each of ~~four~~ [five]{.underline}
> different flow rates; this criteria applies for both the initial and
> follow-up test.**
>
> **Following the initial test, the meters will be placed into service
> for the permanence test. The minimum throughput criterion recommended
> for these meters ~~are 60 days, or~~ [is]{.underline} 2000 x the
> maximum [rated]{.underline} flow ~~rate~~ in units per minute
> ~~achieved in the installation, whichever comes first~~. Following the
> period of use, the tests listed above are to be repeated. All results
> must be within acceptance tolerances.**
>
> **Testing for Volume Units Only or to Add Volume Units to Existing
> Certificates.**
>
> **In order to add volumetric indications to an existing NTEP
> Certificate of Conformance (CC) for a meter that already covers mass
> indications, the following criteria relative to meter sizes to be
> covered on the CC must be met:**

-   **At least one meter size must be tested in the volumetric mode.**

-   **If the meter size(s) selected for testing is not already covered
    on the existing CC, then the request is treated as a submission to
    add a new meter size (i.e., a permanence test is required and
    testing must be performed in both the mass and the volume modes of
    operation).**

> **Note: [During an evaluation of a meter to add volume unit to an
> existing certificate,]{.underline} [the]{.underline} ~~The~~ tolerance
> specified in the mass flow meters code is to be applied to both the
> initial and the final tests. No adjustments may be made to the meter
> during this period. This tolerance is to be applied even if different
> liquid temperatures and pressures exist between the initial and final
> tests. [During the evaluation of a meter for volume units only for a
> product- specific application where a separate product-specific
> Handbook 44 code exists (i.e., LPG, cryogenic liquids, CO^2^, etc.),
> the appropriate Handbook 44 section for the intended application will
> be applied. ]{.underline}**
>
> **Determination of performance relative to repeatability, accuracy,
> and linearity should be performed using accepted statistical
> methodology. Reference documents include: 1) SAMA Standard PMC
> 20.1-1973, Process Measurement and Control Terminology; 2) ANSI/ASME
> MFC-2M-1983, Measurement Uncertainty for Fluid Flow in Closed
> Conduits; and 3) ANSI/ASME MFC-1M-1979, Glossary of Terms Used in the
> Measurement of Fluid Flow in Pipes.**
>
> **Repeatability for Mass Flow Meters (Mass Flow Meters Code Reference
> T.3.).** (no change)
>
> Additional Considerations for Testing Mass Flow Meters Dispensing
> Compressed Natural Gas (CNG). (no change)
>
> **~~N.~~ J. Testing of Lubricating Oil Meters.** (no change)

**Discussion/Conclusion:** Only one manufacturer of mass flow meters was
represented at the October 2003 NTETC Measuring Sector Meeting. The
Sector agreed the proposed change to the time and use requirements in
Section I Permanence Test for Mass Flow Meters in Publication 14 should
not be changed without input from other manufacturers of mass flow
meters. The Sector agreed with the balance of the recommended
Publication 14 changes proposed by the NTEP laboratories. A member noted
that the tolerances For Tests of Automatic Temperature-Compensating
Systems -- LPG and NH3 Meters were incorrect. The tolerances in Handbook
44 3.32 LPG and Anhydrous Ammonia Liquid-Measuring Devices T.4. were
changed in 1997; however, Publication 14 was never updated to reflect
the change. The Sector agreed to submit the following recommendation to
modify Publication 14 to the NTEP Committee for consideration:

> A. Field Evaluation and Permanence Test of New-Design Meters in Retail
> Motor Fuel Dispensers
>
> **All new design meters are subject to a permanence test. If a meter
> is the same as one in a previously tested dispenser, a permanence test
> is not required ~~unless a problem has been detected~~. [NTEP reserves
> the right to require a permanence test based on the result of the
> initial examination.]{.underline}**
>
> Initial Examination
>
> **1. All meters of the new type installed at the type evaluation
> location are subject to examination. At least two meters must be
> tested.**
>
> **2. At least one meter will be chosen for throughput testing on each
> of two major products (e.g., unleaded gasoline and diesel fuel). The
> minimum number of tests for each of these two meters will include the
> following:**
>
> **• Five tests at the fast flow rate**
>
> **• ~~Two~~ [Three]{.underline} tests at a midrange flow rate**
>
> **• Five tests at the slow flow rate**
>
> **At least five tests at both the fast and slow flow rates and ~~two~~
> [three]{.underline} midrange flow rate tests will be run on each of
> these two meters. Only one test at each flow rate need be run on any
> remaining meters. If both products are not available for the type
> evaluation, the test may be performed using one product and a
> Provisional Certificate of Conformance may be issued for the one
> product. The test using the other product may be performed at a later
> date to result in a full Certificate of Conformance.**
>
> **3. All meters must perform within acceptance tolerance.**
>
> **4. Repeatability - When consecutive multiple tests are conducted at
> approximately the same flow rate, the range of the test results for
> the flow rate shall not exceed 40 % of the absolute value of the
> maintenance tolerance.**
>
> Subsequent Examination
>
> **1. All meters of the new type installed at the type evaluation
> location must perform within acceptance tolerance throughout the time
> and volume period specified below.**

2.  **The examination will be conducted no sooner than 20 days after the
    initial examination and not before the previously chosen meters have
    measured at least 20 000 gallons for throughput testing.**

3.  **Five tests at both fast and slow flow rates, and ~~two~~
    [three]{.underline} midrange flow rate tests will be made on the
    throughput meters. Only one test at each flow rate needs to be
    performed on any remaining meters.**

> **[4. Repeatability - When consecutive multiple tests are conducted at
> approximately the same flow rate, the range of the test results for
> the flow rate shall not exceed 40 % of the absolute value of the
> maintenance tolerance.]{.underline}**
>
> B. Field Evaluation ~~and Permanence~~ Test of [Previously
> Evaluated]{.underline} Retail Motor-Fuel Dispensers Using
> [Different]{.underline} Previously Evaluated Meters
>
> **[Previously evaluated d]{.underline}~~D~~ispensers using a
> previously type-evaluated meter [and indicator]{.underline} will be
> subject to a[n initial]{.underline} ~~permanence~~ test. ~~This will
> not be an extensive test of the meter, but the meter must remain
> within acceptance tolerance throughout the permanence test of 20-30
> day duration. The meter will receive significant use during this test,
> but it will not be required to deliver 20 000 gallons. At least one
> dispenser will be subjected to the permanence test. The accuracy tests
> are the same as those for new-design meters in retail motor fuel
> dispensers.~~ [Based on the test results of the initial test, NTEP may
> require a permanence test.]{.underline}**
>
> C. Field Evaluation and Permanence Test for Vehicle-Tank Meters, ~~and
> Wholesale Meters~~ [Except for LPG, Cryogenic, and CO~2~
> Meters]{.underline}
>
> **The following tests are considered to be appropriate for
> vehicle-tank metering systems ~~and except for the vapor or air
> eliminator tests, are considered appropriate for wholesale meters~~:**
>
> **• ~~Three tests at the maximum discharge rate.~~ [Four test drafts
> at each of five flow rates.]{.underline}**
>
> **~~• Three intermediate flow tests.~~**
>
> **~~• Three slow-flow tests.~~**
>
> **• One vapor or air eliminator (product depletion) test.**
>
> **Note: The normal test of a measuring system shall be made at the
> maximum discharge rate that may be anticipated under the conditions of
> the installation. Any additional tests conducted at flow rates down to
> and including one-half the sum of the maximum discharge flow rate and
> the rated minimum discharge flow rate shall be considered normal
> tests. (Code reference N.4.1.)**
>
> **Only one meter is required for the initial test, and after the test
> the meter will be placed into service for the permanence test. The
> ~~following~~ minimum throughput criterion ~~is recommended~~ for
> these meters~~:~~ [is the]{.underline} ~~M~~[m]{.underline}aximum
> rated flow ~~rate~~ in units per minute x 2000. [(Canada requires
> maximum flow rate x 6000.) ]{.underline}**
>
> **Following the period of use, the tests listed above are to be
> repeated. All results must be within acceptance tolerances.**
>
> Repeatability on Vehicle-Tank Meters *(Code Reference T.4.)*
>
> **When multiple tests are conducted at approximately the same flow
> rate, the range of the test results for the flow rate shall not exceed
> 40 percent of the absolute value of the maintenance tolerance, and the
> results of each test shall be within the applicable tolerance.**
>
> **Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors, such as
> temperature, pressure, and flow rate, are reduced to the extent that
> they will not affect the results obtained.**
>
> ~~Split Compartment~~ [Product Depletion Test]{.underline}
>
> **Before vehicle-mounted applications are listed on an NTEP
> Certificate of Conformance, the meter must pass a ~~split
> compartment~~ [product deletion]{.underline} test. This policy applies
> to all meter technologies (e.g., Coriolis mass flow meters, turbine
> meters, positive displacement meters) even if the meter will never be
> installed on trucks with more than a single compartment. The
> permanence test still applies to include the throughput and with a
> duration of a least 20 days. Ideally, this test should be performed
> with a multiple-compartment vehicle; however, if a
> multiple-compartment vehicle is unavailable, a single-compartment
> vehicle may be used to simulate the ~~split-compartment~~ [product
> depletion]{.underline} test by running the tank empty.**
>
> **Purpose: A product depletion test verifies the proper operation of
> air elimination means when the storage tank for the product being
> measured is pumped dry. This test is necessary for meters that may
> drain a tank completely, such as a vehicle-tank meter.**
>
> Test Procedure: (no change)
>
> D. Field Evaluation and Permanence Test for Wholesale Meters
>
> Tests of Automatic Temperature-Compensating Systems on Wholesale
> Meters
>
> (Code Reference T.2.3.4.)
>
> **The difference between the meter error for results determined with
> and without the automatic temperature-compensating system activated
> shall not exceed:**
>
> **1. 0.2 percent of the test draft for mechanical automatic
> temperature-compensating systems; and**
>
> **2. 0.1 percent of the test draft for electronic automatic
> temperature-compensating systems.**
>
> **The results of each test shall be within the applicable
> \"acceptance\" or maintenance tolerance.**
>
> ~~E.~~ Repeatability on Wholesale Meters (Code Reference T.2.3.3.)
>
> **When multiple tests are conducted at approximately the same flow
> rate, the range of the test results for the flow rate shall not exceed
> 40 percent of the absolute value of the maintenance tolerance, and the
> results of each test shall be within the applicable tolerance. This
> tolerance does not apply to the test of the automatic
> temperature-compensating system.**
>
> **Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors such as temperature,
> pressure, and flow rate are reduced to the extent that they will not
> affect the results obtained.**
>
> ~~F.~~ ~~Repeatability on Vehicle-Tank Meters (Code Reference T.4.)~~
>
> **~~When multiple tests are conducted at approximately the same flow
> rate, the range of the test results for the flow rate shall not exceed
> 40 percent of the absolute value of the maintenance tolerance, and the
> results of each test shall be within the applicable tolerance.~~**
>
> **~~Tests for repeatability shall include a minimum of three
> consecutive test drafts of approximately the same size and be
> conducted under controlled conditions where variations in factors,
> such as temperature, pressure, and flow rate, are reduced to the
> extent that they will not affect the results obtained.~~**
>
> ~~G.~~ [E.]{.underline} Field Evaluation and Permanence Test for LPG
> and Cryogenic Meters
>
> **~~As adopted at the 1985 NCWM, the~~ [The]{.underline} following
> tests are considered to be appropriate for metering systems on LPG and
> cryogenic meters:**
>
> **~~1. Three tests at the maximum discharge rate.~~ [Four test drafts
> at each of five flow rates.]{.underline}**
>
> **~~2. Three intermediate flow tests.~~**
>
> **~~3. Three slow-flow tests.~~**
>
> **Only one meter is required for the initial test, after which the
> meter will be placed into service for the permanence test. The
> ~~following~~ minimum throughput criterion ~~is recommended~~ for
> these meters~~:~~ [is the maximum rated flow in units per minute x
> 2000. (Canada requires maximum flow rate x 6000.)]{.underline}**
>
> **~~1. Maximum rated flow rate x 1500 for meters rated at 227 Lpm (60
> gpm) or greater.~~**
>
> **~~2. Maximum rated flow rate x 500 for meters rated less than 227
> Lpm (60 gpm).~~**
>
> **~~3. Based upon California weights and measures experience, this
> corresponds to 30-60 days. The time period is considered appropriate
> because these meters have a history of becoming inaccurate more
> frequently than meters for other fuels.~~**
>
> **Following the period of use, the tests listed above are to be
> repeated. All results must be within acceptance tolerances.**
>
> ~~H.~~ Repeatability on LPG & NH3 Meters (Code Reference T.3.)
>
> **When multiple tests are conducted at approximately the same flow
> rate, the range of the test results for the flow rate shall not exceed
> 40 percent of the absolute value of the maintenance tolerance and the
> results of each test shall be within acceptance tolerance. This
> tolerance does not apply to the test of the automatic
> temperature-compensating system.**
>
> **Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors such as temperature,
> pressure, and flow rate are reduced to the extent that they will not
> affect the results obtained.**
>
> **Note: Stable temperature and pressure indications are necessary
> during the entire repeatability test to achieve good test results. For
> multiple drafts to determine repeatability, the following conditions
> shall be maintained;**
>
> **1. The range of flow rates shall not exceed 5 percent of the first
> test draft.**
>
> **2. The range of temperatures at the meter shall not exceed 1 °C (2
> °F).**
>
> **3. The range of pressure shall not exceed 68.95 Kpa, or 10 PSI.**
>
> **4. The temperature difference between the meter and the prover shall
> not exceed 1 °C (2 °F)**
>
> **If these conditions cannot be met, repeatability tolerances shall
> not be applied. Repeatability tests must include at least three
> consecutive test drafts.**
>
> ~~I.~~ Tests of Automatic Temperature-Compensating Systems - LPG & NH3
> Meters
>
> **The difference between the meter error for results determined with
> and without the automatic temperature-compensating system activated
> shall not exceed:**
>
> **1. ~~0.5~~ [1.0]{.underline} percent of the test draft for
> mechanical automatic temperature-compensating systems; and**
>
> **2. ~~0.25~~ [0.5]{.underline} percent of the test draft for
> electronic automatic temperature- compensating systems.**
>
> **The results of each test shall be within the applicable
> \"acceptance\" or maintenance tolerance.**
>
> ~~J.~~ [F.]{.underline} Field Evaluation and Permanence Test for LPG
> Vapor Meters
>
> **The following tests are to be run on an LPG vapor meter as part of
> the permanence test:**
>
> **1. Three tests at the maximum discharge rate.**
>
> **2. Three slow-flow tests.**
>
> **3. One low-flame test.**
>
> **Only one meter will be required for the initial test, after which
> the meter must have air or product passed through it as part of the
> permanence test. The amount of air or product shall be at least the
> maximum flow rate times 1000. California Weights and Measures performs
> this test in approximately 60 days. Although it is longer than the
> usual 30-day test, this is considered appropriate because these meters
> are usually tested only every ten years.**
>
> **Following the period of accelerated use, the tests listed above are
> to be repeated. All results must be within acceptance tolerances.**
>
> ~~K.~~ [G.]{.underline} Repeatability on Milk Meters (Code Reference
> N.4.1.1. and T.3.)
>
> **When multiple tests are conducted at approximately the same flow
> rate and draft size, the range of the test results for the flow rate
> shall not exceed 40 percent of the absolute value of the maintenance
> tolerance and the results of each test shall be within the applicable
> tolerance.**
>
> **Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors such as temperature,
> pressure, and flow rate are reduced to the extent that they will not
> affect the results obtained.**
>
> ~~L.~~ [H.]{.underline} Field Evaluation and Permanence Test for
> Turbine Meters
>
> **The following tests are considered to be appropriate for turbine
> meters:**
>
> **1. Meters tested in a laboratory environment will be tested five
> times at each of four different flow rates, using varsol or water for
> both the initial and the follow-up evaluation to establish
> \"baseline\" data for the meter\'s performance. A Certificate of
> Conformance may be issued for the product(s) tested in the laboratory;
> however, additional products will not be included until testing is
> completed with these products. After a \"baseline\" is obtained,
> products can be included on the Certificate of Conformance by
> performing three tests at each of four different flow rates in the
> field for both the initial and follow-up evaluation. If a meter is
> tested in the field without first determining a \"baseline,\" the
> meter must undergo ~~five~~ [four]{.underline} tests at each of
> ~~four~~ [five]{.underline} different flow rates; this criteria
> applies for both the initial and follow-up test.\"**
>
> **2. At least one meter is required for each product type for the
> initial test.**
>
> **3. If the meter is to be used with products other than gasoline and
> diesel fuel, the manufacturer must also submit data to indicate meter
> performance over the range of viscosity of products to be used with
> the meter.**
>
> **4. To indicate meter performance over the temperature range in which
> the meter is anticipated to be used, data must also be submitted.**
>
> **5. Following the initial test, the meters will be placed into
> service for the permanence test. The ~~following~~ minimum throughput
> criterion ~~is recommended~~ for these meters [is the]{.underline}
> maximum rated flow ~~rate~~ [in units per minute]{.underline} x 2000.
> [(Canada requires maximum flow rate x 6000.)]{.underline}**
>
> **6. Following the period of use, the tests listed above are to be
> repeated. All results must be within acceptance tolerances. Following
> evaluation of test data and analysis of the data presented by the
> manufacturer for meter performance over temperature and viscosity
> ranges, the evaluating laboratory may require additional testing prior
> to issuing a Certificate of Conformance for the meter.**
>
> ~~M.~~ [I.]{.underline} Permanence Tests for Mass Flow Meters
>
> **The following tests are considered to be appropriate for mass flow
> meters:**
>
> **Type evaluation. The gravimetric test method shall be used for type
> evaluation for meters indicating only in units of mass and may be used
> for meters indicating in units of volume. Meters indicating in only
> units of volume may be tested using a volumetric standard.**
>
> **Gravimetric Standard.** (no change)
>
> **Test Drafts.** (no change)
>
> **Test Data. Meters tested in a laboratory environment will be tested
> ~~five~~ [four]{.underline} times at each of ~~four~~
> [five]{.underline} different flow rates. Use the product available in
> the laboratory for both the initial and the follow-up evaluation to
> establish \"baseline\" data for the meter\'s performance. A
> Certificate of Conformance may be issued for the product(s) tested in
> the laboratory; however, additional products will not be included on
> the Certificate until testing is completed with these products. After
> a \"baseline\" is obtained, products can be included on the
> Certificate of Conformance by performing three tests at each of four
> different flow rates in the field for both the initial and follow-up
> evaluation. If a meter is tested in the field without first
> determining a \"baseline,\" the meter must undergo ~~five~~
> [four]{.underline} tests at each of ~~four~~ [five]{.underline}
> different flow rates; this criteria applies for both the initial and
> follow-up test.**
>
> **Following the initial test, the meters will be placed into service
> for the permanence test. The minimum throughput criterion recommended
> for these meters is 60 days, or 2000 x the maximum [rated]{.underline}
> flow ~~rate~~ in units per minute ~~achieved in the installation,
> whichever comes first~~. Following the period of use, the tests listed
> above are to be repeated. All results must be within acceptance
> tolerances.**
>
> **Testing for Volume Units Only or to Add Volume Units to Existing
> Certificates.**
>
> **In order to add volumetric indications to an existing NTEP
> Certificate of Conformance (CC) for a meter that already covers mass
> indications, the following criteria relative to meter sizes to be
> covered on the CC must be met:**

-   **At least one meter size must be tested in the volumetric mode.**

-   **If the meter size(s) selected for testing is not already covered
    on the existing CC, then the request is treated as a submission to
    add a new meter size (i.e., a permanence test is required and
    testing must be performed in both the mass and the volume modes of
    operation).**

> **Note: [During an evaluation of a meter to add volume units to an
> existing certificate,]{.underline} [the]{.underline} ~~The~~ tolerance
> specified in the mass flow meters code is to be applied to both the
> initial and the final tests. No adjustments may be made to the meter
> during this period. This tolerance is to be applied even if different
> liquid temperatures and pressures exist between the initial and final
> tests. [During the evaluation of a meter for volume units only for a
> product-specific application where a separate product-specific
> Handbook 44 code exists (i.e., LPG, cryogenic liquids, CO~2~, etc.),
> the appropriate Handbook 44 section for the intended application will
> be applied. ]{.underline}**
>
> **Determination of performance relative to repeatability, accuracy,
> and linearity should be performed using accepted statistical
> methodology. Reference documents include: 1) SAMA Standard PMC
> 20.1-1973, Process Measurement and Control Terminology; 2) ANSI/ASME
> MFC-2M-1983, Measurement Uncertainty for Fluid Flow in Closed
> Conduits; and 3) ANSI/ASME MFC-1M-1979, Glossary of Terms Used in the
> Measurement of Fluid Flow in Pipes.**
>
> **Repeatability for Mass Flow Meters (Mass Flow Meters Code Reference
> T.3.)** (no change)
>
> Additional Considerations for Testing Mass Flow Meters Dispensing
> Compressed Natural Gas (CNG). (no change)
>
> **~~N.~~ J. Testing of Lubricating Oil Meters.** (no change)

## 8. Uniform Tolerances for the Same Accuracy Class Device in all LMD Codes (New Item)

**Source:** NIST/WMD

**Background:** Currently NIST Handbook 44 Liquid Measuring Devices
(LMD), Vehicle Tank-Meters (VTM), and Mass Flow Meters (MFM) Codes
include different tolerances for 0.3 Accuracy Class meters. This creates
a technical inconsistency among the codes. Tighter tolerances are
applied to vehicle-mounted positive displacement (PD) meters than
stationary PD meters even though the same model of meter may be used in
both applications. There is no technical justification for this
difference. A similar inconsistency in tolerances is found between the
MFM and VTM Codes. The Mass Flow Meters Code was developed with the
understanding that all liquid-measuring devices used in similar
applications would be held to similar tolerances. The proposed changes
will result in the application of slightly tighter tolerances to LMDs
and MFMs than are in the current codes.

**PROPOSAL:** Align the acceptance tolerance and special test tolerance
in the Liquid Measuring Devices and Mass Flow Meters Codes for 0.3
Accuracy Class meter with corresponding tolerances in the Vehicle-Tank
Meters Code.

Modify Liquid Measuring Devices Code Table T.2. Accuracy Classes for
Liquid Measuring Devices Covered in NIST Handbook 44 Section 3.30 as
follows:

+-------+---------------------------------+--------+---------+---------+
| **    |                                 |        |         |         |
| Table |                                 |        |         |         |
| T.2.  |                                 |        |         |         |
| Acc   |                                 |        |         |         |
| uracy |                                 |        |         |         |
| Cl    |                                 |        |         |         |
| asses |                                 |        |         |         |
| for   |                                 |        |         |         |
| L     |                                 |        |         |         |
| iquid |                                 |        |         |         |
| -Meas |                                 |        |         |         |
| uring |                                 |        |         |         |
| De    |                                 |        |         |         |
| vices |                                 |        |         |         |
| Co    |                                 |        |         |         |
| vered |                                 |        |         |         |
| in**  |                                 |        |         |         |
|       |                                 |        |         |         |
| *     |                                 |        |         |         |
| *NIST |                                 |        |         |         |
| Han   |                                 |        |         |         |
| dbook |                                 |        |         |         |
| 44    |                                 |        |         |         |
| Se    |                                 |        |         |         |
| ction |                                 |        |         |         |
| 3     |                                 |        |         |         |
| .30** |                                 |        |         |         |
+-------+---------------------------------+--------+---------+---------+
| **Acc | **Application**                 | **Acce | **Main  | **      |
| uracy |                                 | ptance | tenance | Special |
| Cl    |                                 | Toler  | Tole    | Test    |
| ass** |                                 | ance** | rance** | Tole    |
|       |                                 |        |         | rance** |
+-------+---------------------------------+--------+---------+---------+
| **    | **Petroleum products including  | *      | **0.3   | **0.[4  |
| 0.3** | large capacity motor-fuel       | *0.~~2 | %**     | ]{.unde |
|       | devices (flow rates over 115    | ~~[15] |         | rline}5 |
|       | L/min (30 gpm))\*\*, heated     | {.unde |         | %**     |
|       | products at or greater than 50  | rline} |         |         |
|       | °C asphalt at or below          | %**    |         |         |
|       | temperatures 50 °C, all other   |        |         |         |
|       | liquids not shown where the     |        |         |         |
|       | typical delivery is over 200 L  |        |         |         |
|       | (50 gal)**                      |        |         |         |
+-------+---------------------------------+--------+---------+---------+
| **0   | **Asphalt at temperatures       | **0.3  | **0.3   | **0.5   |
| .3A** | greater than 50 °C**            | %**    | %**     | %**     |
+-------+---------------------------------+--------+---------+---------+
| **0.  | **Petroleum products delivered  | **0.3  | **0.5   | *       |
| 5\*** | from small capacity (at 4 L/min | %**    | %**     | *0.5%** |
|       | (1 gpm) through 115 L/min (30   |        |         |         |
|       | gpm))\*\* motor-fuel devices,   |        |         |         |
|       | agri-chemical liquids, and all  |        |         |         |
|       | other applications not shown.** |        |         |         |
+-------+---------------------------------+--------+---------+---------+
| **    | Petroleum products and other    | **0.75 | **1.0   | **      |
| 1.1** | normal liquids from devices     | %**    | %**     | 1.25%** |
|       | with flow rates\*\* less than 1 |        |         |         |
|       | gpm and devices designed to     |        |         |         |
|       | deliver less than one gallon.   |        |         |         |
+-------+---------------------------------+--------+---------+---------+
| **    |                                 |        |         |         |
| \*The |                                 |        |         |         |
| m     |                                 |        |         |         |
| ainte |                                 |        |         |         |
| nance |                                 |        |         |         |
| toler |                                 |        |         |         |
| ances |                                 |        |         |         |
| on    |                                 |        |         |         |
| n     |                                 |        |         |         |
| ormal |                                 |        |         |         |
| and   |                                 |        |         |         |
| sp    |                                 |        |         |         |
| ecial |                                 |        |         |         |
| tests |                                 |        |         |         |
| for   |                                 |        |         |         |
| 5-g   |                                 |        |         |         |
| allon |                                 |        |         |         |
| and   |                                 |        |         |         |
| 10-g  |                                 |        |         |         |
| allon |                                 |        |         |         |
| test  |                                 |        |         |         |
| d     |                                 |        |         |         |
| rafts |                                 |        |         |         |
| are 6 |                                 |        |         |         |
| cubic |                                 |        |         |         |
| i     |                                 |        |         |         |
| nches |                                 |        |         |         |
| and   |                                 |        |         |         |
| 11    |                                 |        |         |         |
| cubic |                                 |        |         |         |
| in    |                                 |        |         |         |
| ches, |                                 |        |         |         |
| res   |                                 |        |         |         |
| pecti |                                 |        |         |         |
| vely. |                                 |        |         |         |
| Accep |                                 |        |         |         |
| tance |                                 |        |         |         |
| toler |                                 |        |         |         |
| ances |                                 |        |         |         |
| on    |                                 |        |         |         |
| n     |                                 |        |         |         |
| ormal |                                 |        |         |         |
| and   |                                 |        |         |         |
| sp    |                                 |        |         |         |
| ecial |                                 |        |         |         |
| tests |                                 |        |         |         |
| are 3 |                                 |        |         |         |
| cubic |                                 |        |         |         |
| i     |                                 |        |         |         |
| nches |                                 |        |         |         |
| and   |                                 |        |         |         |
| 5.5   |                                 |        |         |         |
| cubic |                                 |        |         |         |
| inch  |                                 |        |         |         |
| es.** |                                 |        |         |         |
|       |                                 |        |         |         |
| *     |                                 |        |         |         |
| *\*\* |                                 |        |         |         |
| Flow  |                                 |        |         |         |
| rate  |                                 |        |         |         |
| r     |                                 |        |         |         |
| efers |                                 |        |         |         |
| to    |                                 |        |         |         |
| des   |                                 |        |         |         |
| igned |                                 |        |         |         |
| or    |                                 |        |         |         |
| m     |                                 |        |         |         |
| arked |                                 |        |         |         |
| ma    |                                 |        |         |         |
| ximum |                                 |        |         |         |
| flow  |                                 |        |         |         |
| ra    |                                 |        |         |         |
| te.** |                                 |        |         |         |
+-------+---------------------------------+--------+---------+---------+

Modify Mass Flow Meters Code Table T.2. Accuracy Classes for Mass Flow
Meter Applications as follows:

  ---------------- ----------------------------------- ------------------------------ --------------- -------------------------
  **Table T.2.                                                                                        
  Accuracy Classes                                                                                    
  for Mass Flow                                                                                       
  Meter                                                                                               
  Applications**                                                                                      

  **Accuracy       **Application or Commodity Being    **Acceptance Tolerance**       **Maintenance   **Special Tolerance**
  Class**          Measured**                                                         Tolerance**     

  **0.3**          **Loading-rack meters, vehicle-tank **0.~~2~~[15]{.underline}%**   **0.3%**        **0.[4]{.underline}5%**
                   meters, home heating oil, heated                                                   
                   products (except asphalt above 50                                                  
                   C), asphalt 50 C or below, milk                                                  
                   and other food products, large                                                     
                   capacity motor-fuel dispensers                                                     
                   (maximum discharge flow rates                                                      
                   greater than 100 L or 25 gallon per                                                
                   minute), all other liquid                                                          
                   applications not shown in the table                                                
                   where the minimum delivery is at                                                   
                   least 700 kg (1500 lb)**                                                           

  **0.3A**         **Asphalt above 50 C**             **0.3%**                       **0.3%**        **0.5%**

  **0.5**          Small capacity (retail) motor-fuel  **0.3%**                       **0.5%**        **0.5%**
                   dispensers, agri-chemical liquids,                                                 
                   all other liquid applications not                                                  
                   shown in the table                                                                 

  **1.0**          **Anhydrous ammonia, LP Gas         **0.6%**                       **1.0%**        **1.0%**
                   (including vehicle tank meters)**                                                  

  **2.0**          **Compressed natural gas as a motor **1.5%**                       **2.0%**        **2.0%**
                   fuel**                                                                             

  **2.5**          Cryogenic liquid meters, liquefied  **1.5%**                       **2.5%**        **2.5%**
                   compressed gases other than LP Gas                                                 
  ---------------- ----------------------------------- ------------------------------ --------------- -------------------------

**Discussion/Conclusion:** The Sector agreed with the manufacturers of
turbine meters and mass flow meters represented at the meeting that
decreasing the tolerances for those meter types was inappropriate
because it would be very difficult, if not impossible for those meter
types to comply. Uniformity across the codes is not sufficient
justification for changing the tolerances. The Sector voted to oppose
the proposed changes to the tolerances in the Liquid-Measuring Devices
and the Mass Flow Meters Codes as follows: members opposed to the change
-- 9; members in support of the change -- 0. ­ WMD abstained and will
recommend that the tolerances in Handbook 44 Section 3.31. Vehicle-Tank
Meters be changed to be consistent with the tolerances in Section 3.30.
Liquid-Measuring Devices.

## 9. S.4.4.2. Location of Marking Information; Retail Motor-Fuel Dispensers (New Item) 

**Source:** NIST/WMD

**Background:** The current language in paragraph S.4.4.2.(c) as written
can be interpreted to allow the placement of G-S.1. Identification
markings on a door or panel that is removable. Additionally, this
wording might be interpreted to allow placement of marking information
on a panel that can be easily removed through the use of a key (e.g.,
lower meter access panels). This interpretation would be in conflict
with paragraph S.4.4.2.(a). The proposed modifications to paragraph
S.4.4.2.(c) clarifies the original intent, where it is acceptable to
place G-S.1. information on permanent components located 24 inches to 60
inches above the base of the dispenser within the dispenser cabinet.
However, in some cases those components can only be accessed by opening
a door or panel that requires the use of a key or other tool separate
from the device. For comparison, Paragraph S.6.2. Location of Marking
Information, in the Scales Code, includes similar language that provides
acceptable means for accessing the required marking information.

**Recommendation:** Modify Liquid-Measuring Devices Code paragraph
S.4.4.2 Location of Marking Information; Retail Motor-Fuel Dispensers as
follows:

> **S.4.4.2. Location of Marking Information; Retail Motor-Fuel
> Dispensers. - The required marking information in the General Code,
> Paragraph G-S.1. shall appear as follows:**
>
> **Placement of this information shall not be on a portion of the
> device that can be readily removed or interchanged without the use of
> a tool separate from the device.**
>
> **The information shall appear 24 inches to 60 inches from the base of
> the dispenser when placed on the outside of the device.**
>
> **~~When~~ [This information may be]{.underline} placed behind a~~n
> access~~ door or panel [which may require the use of a key or other
> tool separate from the device for access. In this case]{.underline}
> the information shall appear 24 inches to 60 inches from the base of
> the dispenser in a readily legible position. ~~The use of a dispenser
> key shall not be considered a tool separate from the device.~~**
>
> **\[Nonretroactive as of January 1, 2003\]**

**Discussion/Conclusion:** The Sector generally supported the proposal
to modify S.4.4.2. Gordon Johnson (Gilbarco) recommended that the upper
height limit be raised to 72 inches. Gilbarco manufactures dispensers
that have the general form of an "H." Gilbarco, in the past placed the
identification information on the inner surface of an upper panel
immediately above the main dispenser cabinet. That location is slightly
higher than 60 inches. In 2002 when the NCWM adopted the current
language in S.4.4.2., it forced Gilbarco to move the required
identification information to a location inside the dispenser. Mike
Belue (Bleue Associates) reported that the WWMA reviewed the above
proposal and recommended it be made a developing item on the NCWM S&T
Committee agenda. The CWMA recommended that the item be withdrawn from
the NCWM S&T Committee agenda.

During its 2003 Meeting, the Sector developed a new proposal to amend
Handbook 44 Paragraph S.4.4.2. Location of Marking Information; Retail
Motor-Fuel Dispensers and agreed to forward the proposal to the NCWM S&T
Committee for consideration as follows:

> **S.4.4.2. Location of Marking Information; Retail Motor-Fuel
> Dispensers. -- The required marking information in the General Code,
> Paragraph G-S.1. shall appear as follows:**
>
> **~~Placement of this information shall not be on a portion of the
> device that can be readily removed or interchanged without the use of
> a tool separate from the device.~~**
>
> **~~The information shall appear 24 inches to 60 inches from the base
> of the dispenser when placed on the outside of the device.~~**
>
> **~~When placed behind an access door or panel the information shall
> appear 24 inches to 60 inches from the base of the dispenser in a
> readily legible position. The use of a dispenser key shall not be
> considered a tool separate from the device.~~**
>
> **Placement of the marking information:**

(a) **shall be within 24 to 72 inches of the base of the dispenser;**

(b) **may be internal and/or external**

(c) **may require a key or tool for access; and**

(d) **shall be on a portion of the device that cannot be readily removed
    or**

> **interchanged.**
>
> **\[Nonretroactive as of January 1, 200~~3~~X\]**

## 10. Product Family Tables for MAG Meters (Carry-Over Item)

**Source:** Liquid Controls LLC

**Background:** At present no product family criteria exist for Mag
Meters. If a manufacturer wants a CC which covers multiple products,
testing must be conducted on each product. Liquid Controls is asking the
Sector to consider the adoption of a product family of liquids criteria
for MAG Meters and will provide a specific proposal for Sector
consideration at the September 2002 Meeting.

At the 2002 Sector Meeting a work group was formed to address this
issue. The Sector will consider the recommendations of that work group.

**Discussion:** Prior to the 2003 Sector Meeting the technical advisor
was informed that this work group is not ready to present a
recommendation. The work group requests that the item remain on the
agenda for further development.

**Conclusion:** The Sector agreed that a new work group should be formed
to develop family product tables, for Mag Meters, Ultrasonic Meters, and
Turbine Meters for consideration by the Sector at its next meeting. The
members of the new work group are: Charlene Numrych (Liquid Controls)
Chair, Richard Miller (FMC), Joe Buxton (Daniel Measurement & Control),
Randy Byrtus (Measurement Canada). Charlene volunteered to contact other
manufacturers to invite them to participate in the work group.

## 11. Use of Discount and Loyalty Cards and Discounts for Actions After the Completion of a Retail Motor-Fuel Delivery (Carry-Over Item)

**Source:** NTEP Laboratories

**Background:** At the June 2002 NTEP Laboratory Meeting, the
laboratories agreed there is a need for guidance to determine whether or
not a specific discount program or application is appropriate and meets
NTEP requirements.

Examples include: The change to a discount prices when a club card is
inserted and the automatic return to the nonmember price at the
completion of the delivery; a change in the posted price to include a
discount for the purchase of a car wash or other item when a credit card
is used at the pump but is not available at the pump in a post pay
situation; a discount to the unit price for the purchases of certain
items after the delivery has been completed.

**Recommendation:**

The laboratories did not have a specific recommendation at this time but
asked the Sector to organize a work group to identify the issues and
develop consistent guidelines and requirements for the use of various
discount programs.

At the 2002 Sector Meeting a work group was formed to address this
issue. The Sector agreed to consider the recommendations of that work
group at the 2003 Sector Meeting.

**Discussion/Conclusion:** No input has been received from the work
group assigned to develop this issue.The Sector agreed that the work
requested by the NTEP laboratories pertaining to this issue is outside
of scope of the Sector. The Sector also agreed to forward a
recommendation through the NTEP Committee that the NCWM form a work
group to consider the issues and develop appropriate recommendations
regarding legal and equitable trade practices for consideration by all
NCWM members.

## 12. Test Criteria for CNG Dispensers in Publication 14 (New Item)

**Source:** NIST/WMD

**Background:** Publication 14 currently contains a note that states
test procedures are being developed and a draft of the procedures is
available from NIST/WMD. The test procedures were finalized and
published in NIST Handbook 112, EPO 28 in 2002.

**Recommendation:** The Sector reviewed the recommendation that the NTEP
Committee add the following test criteria from EPO 28 Compressed Natural
Gas Retail Motor-Fuel Dispensers to Publication 14 Additional
Considerations for Testing Mass Flow Meters Dispensing Compressed
Natural Gas (CNG) beginning on page LMD-77 of the 2003 edition.

Additional Considerations for Testing Mass Flow Meters Dispensing
Compressed Natural Gas (CNG):

~~Note: The NCWM is currently work with the Natural Gas Vehicle
Coalition to develop field test procedures for CNG dispensers. Copies of
draft procedures submitted to date are available from the NIST Office of
Weights and Measures.~~

> 1\. Ideally, the device should be tested over a temperature range.
> Because this is not possible to easily regulate in the field to
> observe any effects of temperature changes test early in the day and
> then again later in the day.
>
> Note: The evaluating laboratory should attempt to test at as wide a
> temperature range as possible; however, it is recognized that this may
> not always be possible and, in some cases, little or no variation in
> temperature will be experienced.
>
> 2\. The magnitude of the draft (and, therefore, the time required for
> delivery) may impact upon the test results. For very small drafts, the
> start and stop effects can become significant and may result in large
> variability. Because CNG stations are presently few and far between in
> some areas, it is anticipated that these devices will be heavily used
> to \"top off\" tanks. Consequently, the minimum measured quantity
> declared for the device can be significant. It is desirable to have at
> least some tests run at or near the minimum measured quantity.
>
> 3\. In setting up the arrangements for testing, the resolution of the
> scale relative to the test draft must be considered, and \"rounding
> error\" of the scale must be kept to an acceptably small level. As a
> general guideline, the value of the scale division should not exceed
> one-tenth of the tolerance applied to the device. A high-resolution
> scale is needed; error weights should be used; or a larger test draft
> selected. A combination of these approaches may be used. The total
> error of the transfer standard must be limited to less than one-third
> of the tolerance. Therefore, the scale must be thoroughly tested, the
> repeatability of the scale verified, and corrections made to the
> results of the meter test to correct for any errors determined during
> the scale test.
>
> 4\. The repeatability of the test results must be within 40 percent of
> the absolute value of the maintenance tolerance, and the results of
> each test shall be within the applicable tolerances.
>
> Tests for repeatability shall include a minimum of three consecutive
> test drafts of approximately the same size and be conducted under
> controlled conditions where variations in factors such as temperature,
> pressure, and flow rate are reduced to the extent that they will not
> affect the results obtained.
>
> 5\. Repeat tests should be run over a range of flows or, because the
> device may operate at only one flow in the field installation, over a
> range of quantities.
>
> 6\. The typical tank size being filled by the device will be 7 - 10 kg
> (16 - 20 lb). A very large tank size may be 20 kg (40 lb) if a vehicle
> is equipped with two tanks. The average amount dispensed will probably
> be around 4 kg (8 lb).
>
> 7\. Because the zero changes with temperature, the zero must be
> sealable as noted in the Mass Flow Meters Code in H44. CNG meters must
> indicate on the basis of mass, with the computation of total sale
> based on mass units. Supplemental units may be used in addition to the
> mass units, but these must be clearly identified as supplementary
> units. It is suggested that conversion charts be provided to explain
> to the consumer how the conversion factor for the supplemental units
> is derived.

[The following tests are considered appropriate for CNG
Dispensers:]{.underline}

1\. Normal test S.3.7.,N.4., N.6.1, T.2., T.3.

[Computer jump:]{.underline}

[Remove nozzle from dispenser and connect to test cylinder. (Test
cylinder pressure]{.underline}

[should not be greater than 200 psi to simulate an actual
delivery.)]{.underline}

[Turn nozzle valve from "OFF" position to "FILL" position.]{.underline}

[Empty discharge hose.]{.underline}

[Turn nozzle valve to "OFF" position.]{.underline}

[Activate dispenser.]{.underline}

[Observe dispenser indications, if computer jump occurs take appropriate
action.]{.underline}

[NOTE: A test cylinder is not necessary for the computer jump test on
dispensers equipped with an autovent system. To test, turn dispenser on
and observe the indication display for computer jump when the dispenser
shuts off.]{.underline}

[Minimum test drafts are as follows:]{.underline}

[Place empty test cylinder on the scale.]{.underline}

[Access mass display of the dispenser.]{.underline}

[Tare the weight of the test cylinder, chocks, and stand.]{.underline}

[Connect the nozzle to the test cylinder.]{.underline}

[Fill the test cylinder to 1/3 capacity full at maximum flow
rate.]{.underline}

[Disconnect the nozzle from the test cylinder.]{.underline}

[Compare mass display to scale indication.]{.underline}

[Determine dispenser error T.2.]{.underline}

[Leave product in test cylinder.]{.underline}

[Tare the weight of the test cylinder, chocks and stand.]{.underline}

[Connect the nozzle to the test cylinder.]{.underline}

[Begin the fill operation with product in the cylinder; fill cylinder to
2/3 capacity at]{.underline}

[maximum flow rate.]{.underline}

[Disconnect the nozzle from the test cylinder.]{.underline}

[Compare mass display to scale indication.]{.underline}

[Determine dispenser error T.2.]{.underline}

[Tare the weight of the test cylinder, chocks, and stand.]{.underline}

[Connect the nozzle to the test cylinder.]{.underline}

[Begin the fill operation with product in the cylinder; fill cylinder to
capacity at]{.underline}

[maximum flow rate.]{.underline}

[Disconnect the nozzle from the test cylinder.]{.underline}

[Compare mass display to scale indication.]{.underline}

[Determine dispenser error T.2.]{.underline}

[Return product to owner/operator of dispenser UR.3.8.]{.underline}

[Place empty test cylinder on scale (scale may be supported by chocks
and stand.)]{.underline}

[Tare the weight of the test cylinder, chocks, and stand.]{.underline}

[Connect the nozzle to the test cylinder.]{.underline}

[Fill test cylinder to capacity at maximum flow rate.]{.underline}

[Disconnect the nozzle from the test cylinder.]{.underline}

[Compare mass display to scale indication.]{.underline}

[Determine dispenser error T.2.]{.underline}

[Return product to owner/operator of dispenser.]{.underline}

[Repeating previous tests T.3.(a)]{.underline}

[Applicable tolerance for multiple tests at the same flow
rate]{.underline}

[Return product to owner/operator of dispenser.]{.underline}

[If the meter's minimum measured quantity (MMQ) is less than the
smallest test draft, conduct a test\
at the MMQ value N.4.]{.underline}

[NOTE: If 300 divisions (d) or 2.27 kilograms (5 pounds) is greater than
1/3 of the test cylinder capacity, then the test cylinder should be
emptied to accommodate a delivery of at least 300 d or 2.27 kilograms (5
pounds); otherwise a larger tank is necessary.]{.underline}

2\. Check effectiveness of zero-setback interlock S.3.8., UR3.6.,
UR.3.7.

[No subsequent delivery made until indicating and recording element
returned to zero.]{.underline}

[After delivery is complete, the dispenser starting lever (mechanism) is
shutoff, interlock engaged, and discharge nozzle is placed in the
designed hanging position. (Note: This does not apply to nozzle
control.)]{.underline}

[Remove nozzle from hanging position.]{.underline}

[Reset computer to zero and turn on dispenser.]{.underline}

[Attempt to return the nozzle to its designed hanging position,
carefully remove nozzle and connect it to the test tank and open valve.
Move the dispenser starting lever (mechanism) to "ON" position and
attempt to dispense product. (Note: This does not apply to nozzle
control.)]{.underline}

[Product should not flow without resetting the indications to
zero.]{.underline}

3\. Check operation of low-flow cut-off valve UR.2.3.

[Valve shall not be set lower than the minimum flow rate.]{.underline}

[Valve stops registration when flow is below the low-flow cut-off
value.]{.underline}

[Connect nozzle to empty test tank and dispense product. Slowly throttle
down on the valve on the test tank to the minimum attainable flow rate.
Product delivery should not occur below the mass flow meter minimum flow
rate.]{.underline}

4\. Power loss test S.2.4.1., S.2.4.2.

If [transaction is in progress at power loss, information shall be
retainable for 15 minutes.]{.underline}

[Device memory shall retain quantity of product and sales price during
power loss.]{.underline}

[5. Security seal\--apply wire security seal to secure adjusting
mechanism (if applicable) G-UR.4.5., S.3.5.]{.underline}

> [Note on the official report the number of gasoline gallon equivalents
> of product dispensed during the test.]{.underline}
>
> [After all equipment at a location has been tested, review results to
> determine compliance with\
> equipment maintenance and use of adjustments G-UR.4.1.,
> G-UR.4.3.]{.underline}

**Discussion/Conclusion:** The Sector reviewed the procedures and
generally concurred with the proposal. One member questioned if the
references to user requirements in EPO 28 should be added to Publication
14. The Sector agreed that the test criteria presented should be added
to Publication 14 after an editorial review to determine if all the
references to User Requirements are appropriate.

## 13. Acceptable Symbols or Wording to Identify Unit Price, Total Price, and Quantity on a Retail Motor-Fuel Dispenser (Carry-Over Item)

**Source:** Maryland NTEP Laboratory

**Background:** At the June 2002 NTEP Laboratory Meeting, one of the
participating laboratories requested guidance on what are acceptable
symbols or words to identify the unit price, total sale, and quantity
delivered on a retail motor-fuel dispenser. The laboratories recommended
that the question be added to the 2002 Measuring Sector Agenda.

At the 2002 Sector Meeting a work group was formed to address this
issue. The Sector agreed to consider the recommendations of that work
group at the 2003 Sector Meeting

**Discussion/Conclusion:** No input was received from the work group
assigned to develop this issue. The Sector noted that a proposal by the
WWMA in September 2003 to amend G-S.5.6. Recorded Representations and
expand Table 1. Representation of Units to include additional units of
measure was submitted as a developing issue to the NCWM S&T Committee.
The Sector agreed that Item 13 should be removed from the Sector agenda.
The Sector also agreed to review the developing issue if and when the
NCWM S&T requests Sector input.

## 14. Remove Section 3.37. Mass Flow Meters from Handbook 44 and Assimilate Relevant Sections into Other Codes (New Item)

**Source:** California NTEP Laboratory

**Background:** Many of the requirements in the Mass Flow Meters Code
are the same as the requirements in the codes for other meter types. The
submitter estimates that 80 percent of the Mass Flow Meters Code
duplicate requirements that exist in other codes. Handbook 44 could be
simplified by assimilating the Mass Flow Meters Code into other existing
codes. For type evaluation it could also eliminate some questions as to
what could apply when a mass flow meter is being evaluated in an
application that typically is covered by another code, such as a mass
flow meter installed on a truck for dispensing liquefied petroleum gas.

**Recommendation:** Assimilate relevant subsections of Section 3.37,
Mass Flow Meters Code of Handbook 44 into the following Sections:

3.30. Liquid-Measuring Devices;

3.31. Vehicle-Tank Meters;

3.32. LPG and Anhydrous Ammonia Liquid-Measuring Devices;

a.  Hydrocarbon Gas Vapor-Measuring Devices;

b.  Cryogenic Liquid-Measuring Devices;

c.  Milk Meters;

d.  Water Meters.

For Example:

> **Section 3.30. Liquid Measuring Devices**
>
> **A.1. -** This code applies to:

(a) devices used for the measurement of liquids, including liquid fuels
    and lubricants, ~~and~~

(b) wholesale devices used for the measurement and delivery of
    agri-chemical liquids such as fertilizers, feeds, herbicides,
    pesticides, insecticides, fungicides, and defoliants~~.~~[,
    and]{.underline}

(c) [devices that are designed to dynamically measure the mass, or the
    mass and density of liquids.]{.underline}

> **Section 3.31. Vehicle-Tank Meters**
>
> **A.1. -** This code applies to:

(a) meters mounted on vehicle tanks including those used for the
    measurement and delivery of petroleum products or agri-chemicals
    such as fertilizers, feeds, pesticides, defoliants, and bulk
    delivery of water.

(b) [devices mounted on vehicle tanks that are designed to dynamically
    measure the mass, or the mass and density of liquids.]{.underline}

The Sector was asked to consider forming a work group to analyze this
proposal and develop a recommendation for consideration at the next
Sector meeting.

**Discussion/Conclusion:** The Sector reviewed the proposal and noted
that there is already an item on the agenda of the NCWM S&T Committee
proposing that the entire Handbook 44 be reviewed for possible
reorganization. The Sector agreed to recommend to the NCWM through the
NTEP Committee that the entire Liquid Measuring Devices Section of
Handbook 44 should be reorganized and combined wherever possible.

## 15. Reports of Work Groups (New Item)

**Source:** Mike Keilty (Endress+Hauser)

**Background:** Work groups are effective tools that allow agenda items
to be developed between meetings. However, some items fail to be
developed because there is such a long span between the yearly meetings
and there is not always a good commitment to work on the item.

**Recommendation:** Require that a work group team leader provide a
status reports to Steve Patoray (NTEP Director), Richard Suiter (NIST
Technical Advisor), and the Measuring Sector Chairman. Reports must be
forwarded on January 15^th^ and April 15^th^ following the October
Measuring Sector meeting.

**Discussion/Conclusion:** The Acting Chairman, Mike Belue (Belue
Associates) recommended that an additional reporting date of August
15^th^ be added. There were no additional comments on this item. The
Sector agreed with the item as amended.

## 16. Next Meeting

The Sector discussed the time and location for its next meeting.

**Discussion/Conclusion:** The Sector agreed to recommend that the next
Sector Meeting be held in conjunction with the SWMA Annual Meeting
tentatively scheduled to be held in Mississippi in October 2004.

[]{#AppendixD .anchor}Appendix D

National Type Evaluation Technical Committee

Weighing Sector Annual Meeting Summary

September 11‑13, 2003 Fresno, California

Final Summary

[**Carryover Items 2**](#__RefHeading___Toc58813044)

[1. Policy for Initial Test Only vs. Full Evaluation when a Modification
is made which Requires Testing 2](#__RefHeading___Toc58813045)

[2. Vehicle Scale Testing Procedures 3](#__RefHeading___Toc58813046)

[3. Definitions of Hanging and Crane Scales
10](#__RefHeading___Toc58813047)

[4. List of Acceptable Abbreviations and Symbols
12](#__RefHeading___Toc58813048)

[5. Shift Testing on Multi-Interval Scales
14](#__RefHeading___Toc58813049)

[6. Inconsistent Information on a CC 17](#__RefHeading___Toc58813050)

[7. Submission of Scales with Nominal Voltages of 85 to 240 VAC to NTEP
19](#__RefHeading___Toc58813051)

[8. Audit Trail Information during Power Failure
19](#__RefHeading___Toc58813052)

[9. Performance and Permanence Testing 21](#__RefHeading___Toc58813053)

[10. Range of IZSM on Indicating Elements
21](#__RefHeading___Toc58813054)

[11. IZSM Test Procedures 24](#__RefHeading___Toc58813055)

[12. Weight Accumulators 27](#__RefHeading___Toc58813056)

[13: Listing of Weighing Device Types 29](#__RefHeading___Toc58813057)

[**New Items** 33](#__RefHeading___Toc58813058)

[14. Recommended Changes to Publication 14 based on Actions at the 2003
NCWM Annual Meeting 33](#__RefHeading___Toc58813059)

[14a. G-S.1. Identification and G-S.1. Not-Built-for-Purpose Devices,
Software-Based; Software Based-Devices 33](#__RefHeading___Toc58813060)

[14b. Counting Feature on Class I or II Scales used in Prescription
Filling Applications. 34](#__RefHeading___Toc58813061)

[14c. Section and Shift Test Procedures for Livestock Scales.
35](#__RefHeading___Toc58813062)

[14d. Power Supply, Voltage and Frequency
38](#__RefHeading___Toc58813063)

[14e. Concentrated Load Capacity - Definition.
41](#__RefHeading___Toc58813064)

[14f. Substitution and Strain Load Definitions, Test Notes and
Tolerances. 41](#__RefHeading___Toc58813065)

[15. Policy on Converting CLC on Section Capacity for Active Livestock
Scale CCs. 44](#__RefHeading___Toc58813066)

[16. Not-Built-For-Purpose (Software) System Evaluations.
46](#__RefHeading___Toc58813067)

[17. Section E. Modification of Type -- Replacing Lever Systems with
Load Cells. 50](#__RefHeading___Toc58813068)

[18. Physical Security Seals on Scales with External Calibration
Capability. 52](#__RefHeading___Toc58813069)

[19. Screen Savers on Electronic Cash Registers and Point-of-Sale
Systems. 55](#__RefHeading___Toc58813070)

[20. Clarification of G-S.1. Identification (software)
58](#__RefHeading___Toc58813071)

[21. G-S.1. Identification; Built-for-Purpose Software Based Devices
58](#__RefHeading___Toc58813072)

[22. Publication 14 DES Section 8, Family Definition and Selection
Criteria For Vehicle Scales, Railway Track\
Scales, Combination Vehicle/Railway Track Scales, and Other Platform
Scales over 30 000 lb and up to and including 200 000 lb.
62](#__RefHeading___Toc58813073)

[23. Acceptable Abbreviations for Indicated and Recorded
Representations. 67](#__RefHeading___Toc58813074)

[24. Acceptable Abbreviations for "Section Capacity."
68](#__RefHeading___Toc58813075)

[25. Additional Items 70](#__RefHeading___Toc58813076)

[25a. Permanence Test of Floor Scales 70](#__RefHeading___Toc58813077)

[25b. Series and Model Designations that Clearly Identify Pattern and
Design of the Device 70](#__RefHeading___Toc58813078)

[26. Next Meeting 71](#__RefHeading___Toc58813079)

[**ATTACHMENTS** 72](#__RefHeading___Toc58813080)

[Attachment for Item 2 72](#__RefHeading___Toc58813081)

[Attachment for Items 10 and 11 76](#__RefHeading___Toc58813082)

[]{#__RefHeading___Toc58813044 .anchor}**Carryover Items**

[]{#__RefHeading___Toc58813045 .anchor}**1. Policy for Initial Test Only
vs. Full Evaluation when a Modification is made which Requires Testing**

**Source:** 2002 Weighing Sector Item 6

**Background:** See 2002 Sector Summary Agenda Item 6 for additional
background information.

The NTEP director reported that NTEP has been implementing the 2001
Sector recommendation that the applicant for a modification of a CC
agree in advance with the NTEP director and, if possible, the
Participating Laboratory that performed the original evaluation on the
device(s), that said device(s) may be submitted for testing. The NTEP
director further reported that he has encountered no major problems.
Most of the requests for amendments that involved changes to
metrological components or features involved repeating influence factor
or permanence testing.

The NIST technical advisor and some sector members indicated that a
documented policy would promote uniformity among the labs and provide
some advance notification to NTEP applicants if the policy were
documented and published as part of the NTEP application, administrative
policies, and technical policies.

At the 2002 Weighing Sector meeting, SMA reported that its document
regarding modification to a device with an existing CC is still an
"in-house" draft but could be used by the NTEP Director and the
participating laboratories as a guideline to assist in making a decision
on the extent of NTEP reevaluations.

There was also a suggestion that a minimum list of metrologically
significant components be developed with a statement relating to a
minimum amount of reevaluation associated with each component. A
consensus could be gathered using information from the NTEP director,
participating laboratories, original equipment manufacturers (OEMs) and
other knowledgeable parties. Manufacturers are typically reasonable and
it is to the OEM's benefit to agree on a common list

**2002 Sector Conclusion:** The Sector recommended that the NTEP
Committee consider the following underlined amendments for Publication
14, NTEP Administrative Policy, paragraph D.2.

> **D.2 Responsibility for Reporting Occurrence of Modification**
>
> **b. NTEP Options**

On the basis of the manufacturer's notification, NTEP will decide
whether or not to require an evaluation for approving the modification
or issuance of a new Certificate of Conformance [(CC)]{.underline}.
[When a metrologically significant modification is to be made to a
device with an existing CC, the manufacturer and NTEP shall attempt to
agree upon the extent of reevaluation that might be required before such
modification is made. In the event of a disagreement, a full
reevaluation shall take place.]{.underline} NTEP will notify the
manufacturer accordingly.

[NTEP's decision can be appealed to the NCWM Board of Directors
according to NCWM Publication 14 Administrative Policies, Section T.
Appeal and Review Process.]{.underline}

Additionally, SMA Guidelines were to be to be submitted to the Sector by
the middle of May 2003 for consideration at the next Sector meeting.

**Discussion:** The SMA updated the Sector on efforts to develop
decision-making guidelines to assist the extent of NTEP reevaluations.
The SMA reported that it has been working on the guidelines but is not
ready for submission to the Sector.

Additionally, the Sector was updated on the NTEP Committee's position on
the Sector's recommendation to amend Publication 14 Administrative
Policy D.2. The NTEP Committee rejected the above proposal from the 2002
Weighing Sector because it felt that the statements "shall attempt to
agree" and "in the event of a disagreement, a full evaluation shall take
place" were too negative and did not leave NTEP with the flexibility to
make alternate decisions if an agreement could not be reached with the
applicant.

The Sector again discussed the need for an amended policy. Many of the
SMA members felt that there is no problem with the recommendation of the
2001 Weighing Sector and that the language being developed by the SMA is
intended to be used as a guideline and should not be construed as a
policy.

Other Sector members noted that a policy is needed for requiring
additional permanence testing for devices submitted for amending a
certificate. The manufacturers want to know what kinds of modifications
to the type will require additional permanence testing and what parts of
previous evaluations can be used to demonstrate compliance of the
modified type. The Sector felt that some sort of guidance document or
policy would help NTEP treat all applicants equitably and allow
applicants to correctly anticipate the time and expense of a
reevaluation.

The Sector discussed that any policy or guideline would not be able to
anticipate all contingencies. Furthermore, it would have to be a living
document that does not limit options available to NTEP, the
participating laboratories, and the applicants. The Sector also
recognizes that a list of metrologically significant components (MSCs)
is needed to assist in developing the document. The list of MSCs will
also be required as an element of the NCWM/NTEP Conformity Assessment
Program.

After the Sector meeting, the NIST technical advisor noted that similar
questions may arise from measuring and other device applicants, and that
similar technical policies or guidelines should be developed and
considered by the other sectors.

**Conclusion:** The Sector concluded that a policy guideline is needed
to determine the necessity of a partial or full evaluation to amend an
existing certificate. The Sector further agreed that the policy to be
developed by SMA should be part a technical policy in Publication 14 and
not an NTEP Administrative policy. The SMA technical committee will
continue to develop its DRAFT guidelines for ultimate review by the
Sector and NTEP Committee. The Sector chairman volunteered to be the
lead person on this item. The Sector also agreed that the document will
not be all-inclusive and will be amended when clarifications are needed
to recognize additional examples of modifications to MSCs.

[]{#__RefHeading___Toc58813046 .anchor}**2. Vehicle Scale Testing
Procedures**

**Source:** 2002 Weighing Sector Summary Agenda Item 16

**Background:** At the 2002 Participating NTEP Laboratory Meeting, the
labs demonstrated the procedures used to test vehicle scales. The
exercise demonstrated that the participating labs were correctly testing
the scales. However, the language in the current procedures may lead an
evaluator to incorrectly conduct additional testing. The participating
laboratories have amended the existing vehicle scale test procedure that
offers additional clarity to the procedures and promotes the uniform
application of test weights and test loads.

The original item was completed. However, there remain questions on the
amended procedures including questions on strain-load test procedures.

**2002 Sector Discussion:** The Sector reviewed and discussed the
proposals to amend the vehicle scale test procedures. The procedures are
included with the attachment for Agenda Item 16.

The manufacturers were concerned about conducting a 5-point
increasing-load test in conjunction with the shift test. For scales with
a large concentrated load capacity rating, this represents a lot of
weight on the scale for a long time and increases the possibility of a
zero change due to creep. It was pointed out that Publication 14
recognizes that consideration must be given for the length of time the
load was on the scale and possible temperature changes that may have
occurred during the test. *(The NIST technical advisor noted the above
consideration is located in Section 65a.4.5. Strain-Load Test and will
add a similar statement to Section 65a.3. Shift Tests in the list of
recommended editorial changes to the 2003 Edition of Publication 14.)*

**2002 Sector Conclusion:** This subject will be carried over to the
next meeting of the NTEP Participating Laboratories and the NTETC
Weighing Sector for further clarification of the strain-load test
procedures and how to respond to changes to zero when a test load is on
the scale for an extended period of time.

The Sector agreed to support the proposal developed by the participating
laboratories with the clarification recommended by the Maryland
participating laboratory and recommended amendments to Publication 14,
Chapter 1, Section 65(a) 3.1. through 65(a). 3.3. (page DES-86).

This item was further discussed at the April 2003 meeting of the NTEP
Weighing Device laboratories in Sacramento, CA. A problem continues with
interpreting the information contained in the sections regarding vehicle
scale testing. It is not clear how many load sequences need to be
completed and what increments are needed. Also, it is not clear how to
conduct the strain test. There also appears to be some question about
the amount of weight and testing sequence for permanence testing.

It was reported that manufacturers are concerned about the cost in both
time and money for device evaluations. Also, NTEP labs need to interpret
the requirements consistently. The participating laboratories discussed
the need for uniform test forms that can be used for test data by all
labs for this type of testing. Using the model of existing vehicle scale
test forms and any other information available, a final test data sheet
needs to be developed. Bill West, Gary Castro, Don Onwiler, and Steve
Cook were assigned to develop test reports.

Based upon the discussion and recommendation of the participating
laboratories, Steve Cook drafted amendments to the "shift and
strain-load test language" for Publication 14 as shown in the attachment
for Item 2. The labs considered amending the number of steps for the
increasing/decreasing-load tests but could not agree on a specific
number and would appreciate technical input from vehicle scale
manufacturers on the value of the information gathered in the number of
test loads.

**Discussion:** The Sector discussed the procedures developed by the
participating laboratories at their 2003 spring meeting. The discussion
included the following subjects:

-   Changes in temperature when considering returning to zero;

-   Five increasing test loads during strain-load tests;

-   Procedures to be repeated after the 20-day with minimum use
    permanence test;

-   80 % CLC test weights for the 20-day with minimum use test;

-   Actions after the failure of the permanence test; and

-   Strain‑load test load, patterns and procedures

Many of the manufacturers expressed concerns that the term "creep
recovery" is not defined. It was explained by the NTEP director and
confirmed by the manufacturers that problems with returning to a
zero-balance condition after a load has been on the scale for a period
of time is more likely due to temperature changes rather than "creep."
It was suggested that the term "creep recovery" be removed from the
proposed language. If there was a problem returning to zero that
exceeded the amount allowed over a change in ambient temperature, it was
suggested that a more specific test be conducted by placing a load on
the scale for 30 minutes. After that time, remove the load and the scale
should return to zero within 30 minutes. There was also a recommendation
that certified thermometers with a 1 ºF (0.5 ºC) resolution be used to
verify and record ambient temperatures near the middle of the scale
where the load cell cable leaves the load-receiving element.

There was also a significant amount of discussion on the number of steps
to be performed while conducting the strain‑load test. Many of the
laboratories stated there have been problems revealed with non-linearity
by conducting the shift test with five test loads and that shift tests
with conducted with 5 test loads are appropriate. Another laboratory
agreed with the manufacturers that (non-) linearity is predictable and
would have already been demonstrated during the shift tests. A straw
poll of the voting members was taken indicating that the majority of the
sector members were against conducting the strain-load test with 5 test
loads (5 in favor and 12 opposed).

The NIST technical advisor requested clarification regarding the test
pattern for the test weights used for the strain-load test. Publication
14 states that the test weights used to conduct the shift test are to be
used for the strain-load test. Some of the labs apply the weights in the
same test pattern and test load used to verify the CLC rating. The
technical advisor is concerned about overloading the weighbridge of the
scale when a test load of 90 % CLC is added in the prescribed test
pattern and located close to the unknown load. The Sector agreed that
the test weights used for the strain-load test could be distributed over
the available area on the end of the scale not occupied by the object
used for the unknown load.

The Sector decided that additional clarification is needed to specify
the specific tests that would be repeated for the subsequent permanence
test, and that it would take place after 20 days\' use with minimum use
requirements having been met.

The final area of discussion was a proposal to increase the amount of
test weights needed for the subsequent test to that used for the initial
test. The lab that proposed this justified their position by stating
that the existing test procedures did not test the permanence of the CLC
rating. Furthermore, the initial testing could be immediately restarted
if the scale failed permanence tests. The NIST technical advisor stated
that the Sector discussed this issue and established the current policy
at their June 1988 meeting and that the current laboratory proposal did
not include sufficient justification for changing this policy. The
manufacturers stated there was no benefit that justified the expense of
bringing in the additional weights. Additionally, they stated that there
is a design or repair problem that must be addressed before the tests
can be restarted after a permanence test failure. They further stated
that permanence tests demonstrate that the scale can maintain tolerances
and do not consider a shift in error between tests.

**Conclusion:** The Sector recommended the following:

1.  Include temperature-recording procedures and guidelines in the
    proposed amendments to the "shift and strain-load test language" in
    this item.

2.  Remove the term "creep-recovery" in the proposed amendments to the
    "shift and strain-load test language" in this item.

3.  Add: "If the device does not return to zero and the temperature has
    not changed, the scale must indicate zero within tolerance within 30
    minutes" in the proposed amendments to the "shift and strain-load
    test language" in this item.

4.  Amend the NOTE in section 65.a.2.1 that clarifies that the shift
    test with a test load of 90 % to 100  % CLC located at the
    mid-section between spans only has to be conducted one time.

5.  Ballot the Sector on the amended strain-test language that removes
    the requirement that test weights have to be applied in five steps.

6.  Amend the language in the proposed strain-load test procedures to
    state that test weights do not have to be concentrated in the shift
    test prescribed test pattern as described in Handbook 44 paragraph
    N.1.3.4. (a).

7.  Amend the proposed strain-load test language into individual steps.

8.  Retain current test weight requirements for the subsequent
    permanence tests.

9.  Amend section 65a.5 that weights should be applied and recorded at a
    minimum of three steps for subsequent tests.

The Sector further recommends the following [underlined]{.underline}
language replace the existing language in Publication 14, Checklist for
Digital Electronic Scales, Sections 65a.2 through 65a.5:

**(NOTE to the Editor -- Add the following language from paragraph
65a.6. to the end of paragraph 65a.)**

[Caution Regarding Load Concentration]{.underline}

> [Concentrating large loads on scale platforms by using weight carts or
> test equipment using hydraulic jacks may exceed the maximum
> pound-per-square inch load specification for the deck. This condition
> may arise because the small tire area of the weight cart in contact
> with the deck surface could result in a very large load concentration
> over an unusually small area. This could cause damage to the scale
> deck.]{.underline}
>
> [This situation may occur with a weight cart having a very narrow or
> short wheelbase and small solid rubber tires. This may cause a problem
> on steel plate decks and could also result in damage to manhole
> covers. If the load capacities of weight carts increase beyond 25 000
> lb, while maintaining solid tread wheels, it is possible that some
> concrete decks could be damaged.]{.underline}

65a.2. Shift and Section Tests [(Initial Performance
Testing)]{.underline}

**(Note To Editor: Delete existing Pub 14 language and replace with the
following language.)**

> [A **shift test** is defined in Handbook 44 as a test intended to
> disclose the weighing performance of a scale under off‑center loading.
> \[2.20\]]{.underline}
>
> [A **section test** is defined in Handbook 44 as a **shift test** in
> which the test load is applied over individual sections of the scale. 
> This test is conducted to disclose the weighing perfor­mance of
> individual sections, since scale-capacity test loads are not always
> available and loads weighed are not always distributed evenly over all
> main load supports. \[2.20\]]{.underline}

[The minimum amount of *test weights* to conduct the shift and section
tests 90 % of the CLC.]{.underline}

> [Record the time and temperature at the beginning and end of each
> complete shift test. The location of the temperature probe should be
> at a point near where the load cell cable leaves the load-receiving
> element. The temperature probe shall have a resolution no greater than
> 1 ºC, (2 ºF) and shall comply with NIST Handbook 105-6 or equivalent
> internationally recognized standards.]{.underline}
>
> [The scale shall be capable of returning to a no-load indication
> within prescribed limits (3d per 5 °C change in temperature) and
> within 15 minutes after shift and section test loads are
> removed.]{.underline}
>
> [Unless otherwise stated in the following procedure, the increasing
> and decreasing load tests (using known test weights) shall be
> conducted with at least five test loads (e.g. 500, 1000, 2000e\...).
> (NOTE) If possible, the test first load should equal 500e. If weights
> cannot be conveniently applied that equal 500e, the first load should
> equal just below 500e as nearly as possible. The other tolerance
> breakpoints should be tested if possible.]{.underline}

**An example of a three-section scale:**

  ----- ---------- ----- ---------- ----- ---------- ----- ---------- -----
  4\'              4\'              4\'              4\'              4\'

                                                                      
  ----- ---------- ----- ---------- ----- ---------- ----- ---------- -----

  --------- ------ ---------- ----- --------- ----- ---------- ----- ---------
  Section 1        Midway           Section 2       Midway           Section 3
                   between                          between          
                   sections 1                       sections 2       
                   and 2                            and 3            

  --------- ------ ---------- ----- --------- ----- ---------- ----- ---------

> [65a.2.1. Conduct at least two complete sets of shift tests over each
> section to at least 90 % of the concentrated load capacity (CLC) of
> the scale. When analyzing the return to zero, consideration must be
> given for the length of time the load was on the scale and possible
> temperature changes that may have occurred during the
> test.]{.underline}

(a) [Begin the shift test by loading one end section to the first of at
    least five test loads and record the error.]{.underline}

(b) [Move the test load to the next section and record the error. Repeat
    this step at each section until the opposite end of the scale is
    reached.]{.underline}

(c) [Repeat steps (a) and (b) for each test load until at least 90 % of
    the CLC is reached. A minimum of five test loads is
    required.]{.underline}

(d) [While at the maximum test load (90 % of the CLC) and during one of
    the shift tests, place the test weights at mid-span between sections
    and record the error.]{.underline}

> [On modular scales, conduct the shift test on the center (C), right
> (R), and left (L) side of each module connection line.]{.underline}

  ------------------ ------------------------ ------------------ ------------------ ------------------------ ------------------
  [Section                                    [Section 2                                                     [Section
  1]{.underline}                              C]{.underline}                                                 3]{.underline}

  [1R]{.underline}   [Mid-Span]{.underline}   [2L]{.underline}   [2R]{.underline}   [Mid-Span]{.underline}   [3L]{.underline}
  ------------------ ------------------------ ------------------ ------------------ ------------------------ ------------------

(e) [When steps (a) through (d) are complete, conduct a decreasing load
    test at the end of the scale where the weights can be removed.
    Record the error and section where this test was
    performed.]{.underline}

**(NOTE to Editor: Delete Existing 65.a.3. Shift Test and renumber
subsequent paragraphs.)**

65a.3. Strain-Load Test [(Initial Performance Testing)]{.underline}

**(NOTE to Editor: Delete existing language and replace with the
following)**

[The minimum amount of ***test weights*** used shall be the same loads
used to conduct the shift tests.]{.underline}

> [Record the time and temperature at the beginning and end of each
> complete strain-load test. The location of the temperature probe
> should be at a point near where the load cell cable leaves the
> load-receiving element. The temperature probe shall have a resolution
> no greater than 1 ºC, (2 ºF) and shall comply with NIST Handbook 105-6
> or equivalent internationally recognized standards.]{.underline}
>
> [The scale shall be capable of returning to a no-load indication
> within prescribed limits (3d per 5 °C change in temperature) and
> within 15 minutes after the load was removed.]{.underline}
>
> [Unless otherwise stated in the following procedure, increasing and
> decreasing loads (using test weights) shall be at a minimum of five
> test loads. (NOTE) If possible, the first increment of test weights
> should equal 500e. If weights cannot be conveniently applied that
> equal 500e, the first load should equal just below 500e as nearly as
> possible. The other tolerance breakpoints should be tested if
> possible.]{.underline}
>
> [The target strain-load test indication is the sum of the indication
> of the unknown weight and the amount of test weights.]{.underline}
>
> [The strain-load error is the difference between the actual
> strain-load test indication and the target strain-load test
> indication.]{.underline}
>
> [Acceptance tolerances are applied and are based on known test
> weights.]{.underline}
>
> ***[(NOTE: The test weights do not have to be concentrated in the test
> pattern prescribed in Handbook 44 Scales Code paragraph
> N.1.3.4.).]{.underline}***
>
> [65a.3.1. Conduct at least one strain-load test at each end of the
> scale. The maximum load applied during the strain-load test shall be
> in the range of 80 to 100 % of scale capacity. Distribute the load
> over the load-receiving element.]{.underline}
>
> [65a.3.2. For the first test:]{.underline}

a.  [Load the scale with a vehicle or vehicles so the addition of test
    weights will provide a gross load of 80 to 100 % of scale
    capacity.]{.underline}

b.  [Record the \"reference point\" for the start of the strain-load
    test.]{.underline}

c.  [Add the test weights to one of the ends of the scale. The target
    strain-load indication is the sum of the unknown weight and the test
    weights.]{.underline}

d.  [Record the indicated strain-load value and calculate the
    strain-load test error. The scale shall perform within prescribed
    tolerances based upon the tolerance for the known test
    weights.]{.underline}

e.  [Remove the test weights from the end of the scale without
    conducting a decreasing-load test.]{.underline}

f.  [Record the new strain-load reference value and re-apply the test
    weights.]{.underline}

g.  [Record the indicated strain-load value and calculate the
    strain-load test error. The scale shall perform within prescribed
    tolerances based upon tolerance for the known test
    weights.]{.underline}

> [Note: To verify that the strain-load values repeat the initial value,
> the strain-load test indication in step (g) shall agree with the
> strain-load test indication in step (d) within the absolute value of
> maintenance tolerances (repeatability).]{.underline}

h.  [Conduct a decreasing-load test and return to the strain-load
    reference value as the weights are removed as part of this test
    cycle. Record the results of the decreasing-load test at 5 different
    test loads.]{.underline}

i.  [Record the return to the strain-load reference value. This value
    shall be within one-half of a scale division of the values recorded
    in (b) considering any temperature changes that may have occurred
    during this last test cycle.]{.underline}

j.  [Remove the strain-load. Do not apply zero-return tolerances at this
    time.]{.underline}

> [65a.3.3. For the second test:]{.underline}

a.  [Rezero the scale.]{.underline}

b.  [Place the strain-load (vehicles or material of unknown weight) on
    the other end of the scale.]{.underline}

c.  [Record the strain-load reference value. The semi-automatic tare
    mechanism may be used to tare out the strain-load value (Net weight
    indications can be used for the increasing-load test.) Do not use
    the zero-setting mechanism to set the strain-load to
    zero.]{.underline}

d.  [Add the test weights the other end of the scale. The target
    strain-load indication is the sum of the unknown weight and the test
    weights.]{.underline}

e.  [Record the indicated strain-load value and calculate the
    strain-load test error. The scale shall perform within prescribed
    tolerances based upon tolerance for the known test
    weights.]{.underline}

f.  [Remove the strain-load (vehicles or material of unknown weight) but
    leave the known test weights on the scale and set the indicator to
    display "gross weights."]{.underline}

> [The gross weight indication of the test weights shall be within
> acceptance tolerances.]{.underline}

g.  [Use the "gross weight" indications to conduct a decreasing-load
    test. Record the decreasing-load test in 5 different test
    loads.]{.underline}

h.  [When all the weights are removed, record the return to zero. The
    scale must return to zero within one-half of a scale division
    considering any temperature changes during this test
    cycle.]{.underline}

> [65.a.4. Minimum Use Requirements prior to Subsequent Test for
> Permanence]{.underline}

-   [A minimum of 300 weighing operations are required during the test
    period. If the test site is at the applicant\'s or manufacturer\'s
    location, the applicant or manufacturer is to log the date, time,
    and weight. The person conducting the weighing is to initial each
    testing.]{.underline}

-   [Only loads that reflect "normal" use will be counted during the
    permanence-testing period.]{.underline}[^1]

-   [For vehicle scales with a nominal capacity over 75 000
    lb:]{.underline}

    -   [50 % of the loads must be above 50 000 lb or 80 % of the CLC,
        whichever is greater; and]{.underline}

    -   [100 % of the loads must be above 20 000 lb or 50 % of the CLC,
        whichever is greater.]{.underline}

-   [For all other scales:]{.underline}

    -   [50 % of the loads must be above 50 % of the scale capacity;
        and]{.underline}

    -   [100 % of the loads must be above 20 % of the scale
        capacity.]{.underline}

-   [Substitution or strain-test loads for the minimum use requirements
    are acceptable as long as all above conditions are met.]{.underline}

-   [The minimum number of days that a device is required to be in use
    is 20. A minimum number of weighing operations to be conducted each
    day for the test period is not specified; however, the weighments
    should represent the scale\'s normal in-service use.]{.underline}

> [65.a.5 Subsequent Type Evaluation Tests for Permanence]{.underline}
>
> [The minimum amount of ***test weights*** for the shift and
> strain-load tests shall be a minimum of 40 000 lb or 50 % of the CLC,
> whichever is greater.]{.underline}
>
> [Record the time and temperature at the beginning and end of each
> complete shift test. The location of the temperature probe should be
> at a point near where the load cell cable leaves the load-receiving
> element. The temperature probe shall have a resolution no greater than
> 1 ºC, (2 ºF) and shall comply with NIST Handbook 105-6 or equivalent
> internationally recognized standards.]{.underline}
>
> [The scale shall be capable of returning to a no-load indication
> within prescribed limits (3d per 5 °C change in temperature) and
> within 15 minutes after the load was removed.]{.underline}
>
> [Unless otherwise stated in the following procedure, increasing and
> decreasing-load test results (using test weights) shall be recorded at
> a minimum of three test loads (zero, approx. ½ maximum test weights,
> and at maximum test weights).]{.underline}
>
> [The strain-load error is the difference between the actual
> strain-load indication and the target strain-load
> indication.]{.underline}
>
> [Acceptance tolerances are applied and are based on known test
> weight.]{.underline}
>
> (NOTE: The test weights do not have to be concentrated in the test
> pattern prescribed in Handbook 44 Scales Code paragraph N.1.3.4.).
>
> [65a.5.1. Conduct at least one complete set of **shift** tests over
> each **section**, at mid-span between each **section** Increasing and
> decreasing tests (using known test weights) shall be conducted with at
> least three different test loads (near 500e, and at one-half and at
> maximum available test weights).]{.underline}
>
> [While at the maximum test load, place the test weights at mid-span
> between sections and record the error.]{.underline}
>
> [On modular scales, conduct the shift test on the center (C), right
> (R), and left (L) side of each module connection line.]{.underline}

+------------+---------+-----------+----------+----------+-----------+
| [Section   |         | [Section  |          |          | [Section  |
| 1]{.       |         | 2         |          |          | 3]{.u     |
| underline} |         | C]{.u     |          |          | nderline} |
|            |         | nderline} |          |          |           |
+------------+---------+-----------+----------+----------+-----------+
| [1R]{.     | [       | > [2L]{.u | [2R]{.un | [Mid     | > [3L]{.u |
| underline} | Mid-Spa | nderline} | derline} | S        | nderline} |
|            | n]{.und |           |          | pan]{.un |           |
|            | erline} |           |          | derline} |           |
+------------+---------+-----------+----------+----------+-----------+

> [65a.5.2. Conduct at least one complete set of strain-load tests using
> the "Strain-Load Test" procedures in steps 65a.3 through 65a.3.3. The
> maximum applied load shall be in the range of 65 to 100 % of scale
> capacity.]{.underline}
>
> [65a.5.3. If the device does not meet these tolerance limits during
> the subsequent test for permanence (unless otherwise stated in
> Handbook 44, any type evaluation tests must be within acceptance
> tolerances), all tests described in sections 65a.1 through 65.a.5
> shall be repeated.]{.underline}

3.  []{#__RefHeading___Toc58813047 .anchor}**Definitions of Hanging and
    Crane Scales**

**Source:** 2002 Weighing Sector Agenda Item 19

**Background**: Some inconsistencies have been recognized in NIST
Handbook 44 and NTEP Certificates of Conformance (CC) with reference to
crane scales. Table 3 footnote 3 indicates that a crane scale can have a
capacity as low as 500 lb. The only difference appears to be that
hanging scales can only be installed where suspended from fixed supports
and crane scales can only be installed in overhead track-mounted cranes.
CCs have been issued with capacities of scales from 250 lb to 5000 lb,
with both III and III L Accuracy Class designations, and both hanging
and crane scale device classifications. The NIST technical advisor has
observed large-capacity scales installed on overhead track-mounted
cranes that can just as easily be installed on other types of cranes and
supporting structures. The participating laboratories are of the opinion
that the condition of the scale support (overhead crane, fixed support,
etc.) should not be a factor in determining device type.

**2002 Sector Discussion/Conclusion:** The Sector agreed to make the
following recommendation to the S&T Committee to remove the crane scale
definition, define hanging scale, remove the reference to crane scale
from Table 7a and paragraph N.1.3.8, and change remaining crane scales
references to hanging scale in NIST Handbook 44:

Add a definition of hanging scale and remove the definition of crane
scale, and amend Table 3 Parameters for Accuracy Classes footnote 3,
paragraph N.1.3.8. and paragraph T.N.3.4., and Tables 7a and 7b as
follows:

> [hanging scale. A scale designed to weigh loads while they are
> suspended from a hook on the scale or loads resting on a platter or
> platform that is suspended from the scale. Hanging scales may be any
> capacity and may be Class III or III L, whichever is appropriate for
> the intended use, as long as all parameters for the intended class are
> met. Sometimes called "crane scale."]{.underline}
>
> ~~crane scale. One with a nominal capacity of 5000 pounds or more
> designed to weigh loads while they are suspended freely from and
> overhead, track mounted, crane. \[2.20\]~~
>
> *^3^ The values of a scale division for ~~crane~~ [Class III L
> hanging]{.underline} and hopper (other than grain hopper) scales shall
> not be less than 0.2 kg (0.5 lb). The minimum number of scale
> divisions shall be not less than 1000.*
>
> N.1.3.8.  All Other Scales Except ~~Crane Scales,~~ Hanging Scales,
> Hopper Scales, Wheel-Load Weighers, and Portable Axle-Load Weighers.
>
> T.N.3.4. ~~Crane~~ [Class III L Hanging]{.underline} and Hopper (Other
> than Grain Hopper) Scales. -- The maintenance and acceptance
> tolerances shall be as specified in T.N.3.1. and T.N. 3.2. for Class
> III L, except that the tolerance for ~~crane~~ [Class III L
> hanging]{.underline} and construction materials hopper scales shall
> not be less than 1d or 0.1 % of the scale capacity, whichever is less.

+--------+-------------------------------------------------------------+
| *      |                                                             |
| *Table |                                                             |
| 7a.**  |                                                             |
|        |                                                             |
| **T    |                                                             |
| ypical |                                                             |
| Class  |                                                             |
| or     |                                                             |
| Type   |                                                             |
| of     |                                                             |
| Device |                                                             |
| for    |                                                             |
| We     |                                                             |
| ighing |                                                             |
| Operat |                                                             |
| ions** |                                                             |
+--------+-------------------------------------------------------------+
| Class  | Weighing Application or Scale Type                          |
+--------+-------------------------------------------------------------+
| I      | Precision laboratory weighing                               |
+--------+-------------------------------------------------------------+
| II     | Laboratory weighing, precious metals and gem weighing,      |
|        | grain test scales                                           |
+--------+-------------------------------------------------------------+
| III    | All commercial weighing not otherwise specified, grain test |
|        | scales, retail pre­cious met­als and semi-precious gem        |
|        | weighing, animal scales, postal scales, scales used to      |
|        | deter­mine laun­dry charges, [hanging,]{.underline} and       |
|        | vehicle on-board weighing systems                           |
+--------+-------------------------------------------------------------+
| III L  | Vehicle, axle‑load, livestock, railway track scales,        |
|        | ~~crane~~[hanging]{.underline}, hopper (other than grain    |
|        | hop­per) scales, and vehicle on-board weighing systems       |
+--------+-------------------------------------------------------------+
| IIII   | Wheel-load weighers and portable axle-load weighers used    |
|        | for highway weight enforcement                              |
+--------+-------------------------------------------------------------+
| Note:  |                                                             |
| A      |                                                             |
| scale  |                                                             |
| with a |                                                             |
| higher |                                                             |
| ac     |                                                             |
| curacy |                                                             |
| class  |                                                             |
| than   |                                                             |
| that   |                                                             |
| spe    |                                                             |
| cified |                                                             |
| as     |                                                             |
| \"typ  |                                                             |
| ical\" |                                                             |
| may be |                                                             |
| used.  |                                                             |
|        |                                                             |
| (A     |                                                             |
| mended |                                                             |
| 1985,  |                                                             |
| 1986,  |                                                             |
| 1987,  |                                                             |
| 1988,  |                                                             |
| 1992,  |                                                             |
| and    |                                                             |
| 1995)  |                                                             |
+--------+-------------------------------------------------------------+

+-------------------------------------+--------------------------------+
| **Table 7b.**                       |                                |
|                                     |                                |
| **Applicable to Devices not Marked  |                                |
| With a Class Designation**          |                                |
+-------------------------------------+--------------------------------+
| Scale Type or De­sign                | Maximum Value of d             |
+-------------------------------------+--------------------------------+
| Retail Food Scales, 50‑lb capacity  | 1 ounce                        |
| and less                            |                                |
+-------------------------------------+--------------------------------+
| Ani­mal Scales                       | 1 pound                        |
+-------------------------------------+--------------------------------+
| Grain Hop­per Scales                 | 10 pounds (not greater than    |
|                                     | 0.05 % of c­apa­city)            |
| Ca­paci­ty up to and incl. 50 000 lb  |                                |
|                                     | 20 pounds                      |
| Ca­paci­ty over 50 000 lb             |                                |
+-------------------------------------+--------------------------------+
| ~~Crane~~ [Hanging]{.underline}     | not greater than 0.2 % of      |
| Scales [-- Capacity 5000 lb and     | ca­pac­ity                       |
| over]{.underline}                   |                                |
+-------------------------------------+--------------------------------+
| Vehi­cle and A­xle‑­Load Scales Used   | 20 pounds                      |
| in Combination                      |                                |
|                                     | 50 pounds                      |
| Ca­paci­ty up to and in­clud­ing 200    |                                |
| 000 lb                              |                                |
|                                     |                                |
| Ca­paci­ty over 200 000 lb            |                                |
+-------------------------------------+--------------------------------+
| Railway Track Scales                | 20 pounds                      |
|                                     |                                |
| With wei­gh­b­eam                      | 100 pounds                     |
|                                     |                                |
| Au­to­mat­ic indi­cat­ing                |                                |
+-------------------------------------+--------------------------------+
| Scales with ca­paci­ties gre­ater than | 0.1 % capacity (but not        |
| 500 lb ex­cept oth­er­wise spe­ci­fied   | greater than 50 lb)            |
+-------------------------------------+--------------------------------+
| Wh­eel‑­L­oad Wei­gh­ers                 | 0.25 % capacity (but not       |
|                                     | great­er than 50 lb)            |
+-------------------------------------+--------------------------------+
| Note: For scales not specified in   |                                |
| this table, G-UR.1.1. and UR.1.     |                                |
| apply.                              |                                |
|                                     |                                |
| (Added 1985) (Amended 1989)         |                                |
+-------------------------------------+--------------------------------+

The NCWM S&T Committee discussed the Weighing Sector's concern about the
large list of terms used to identify various scale types and designs.
The Committee questioned the existence of Class II hanging scales that
may not be included in the proposed definition for hanging scale. The
Committee believes the Weighing Sector should explore other options to
consolidate the terminology used to describe scale types and designs.
The Committee withdrew the proposal and referred the item back to the
Weighing Sector for further development.

**Discussion/Conclusion:** The Sector recommended no further action on
this item. The issues stated in the above background information may be
resolved with changes to the procedures for the listing of device types
on CCs and was further discussed during on the Sector's agenda item 13.

4.  []{#__RefHeading___Toc58813048 .anchor}**List of Acceptable
    Abbreviations and Symbols**

**Source:** 2002 Weighing Sector Agenda Item 20

**Background:** The following is from the 2002 Weighing Sector final
summary:

The NTEP Participating Laboratories reviewed a document titled "General
Letters, Symbols, Mathematical ‑ statistical Symbols, and Markings for
Legal Metrology" provided by Darrell Flocken (Mettler Toledo).

Previous sector meetings discussed the list but decided that many of the
symbols were not acceptable to the group.

Canada's list is an interpretation of the existing statute, and items
not on the list are not acceptable for viewing by the customer.

The NIST technical advisor sent a copy of the document to the
participating weighing labs for their suggestions of symbols that are
and are not acceptable to be viewed by the customer.

The participating Measuring Device Laboratories are also concerned with
the use of symbols. Where practical, proposed lists of symbols should be
consistent among the Weighing Devices, Liquid Measuring Devices and
other applicable sections in NCWM Publication 14.

**2002 Sector Discussion/Conclusion:** The participating laboratories
reported that there has been no progress on this item. Darrell Tonini
(SMA) reported that the SMA Technical Committee was working on a similar
document that should be ready in time for the next meeting of the
participating laboratories. The NIST technical advisor will distribute
the SMA document as soon as it becomes available. The Sector chairman
requested that the participating laboratories review and comment on
abbreviations in both documents and prepare a proposal for consideration
prior to the 2003 meeting of the Weighing Sector. Examples of
questionable symbols and abbreviations that are part of an active
evaluation will be reviewed by participating laboratories and the NTEP
director on a case-by-case basis for a determination of the
acceptability of the symbol or abbreviation.

**2003 Recommendation:** The SMA has submitted the following symbols for
discussion. The Sector is asked to review and consider the proposed
table as an addition to paragraph 74 of Publication 14.

  ---------------------------------------------------------------------------------------------------
  Table 1, Operational                                                       
  Controls, Indications,                                                     
  Features:                                                                  
  ------------------------ ------------------------ ------------------------ ------------------------
  1.1                      1.2                      1.3                      1.4

  ![](media/image1.wmf)    ![](media/image2.wmf)    ![](media/image3.wmf)    ![](media/image4.wmf)

  On (power)               Off (power)              On/Off (power)           Enter

  1.5                      1.6                      1.7                      1.8

  ![](media/image5.wmf)    ![](media/image6.wmf)    ![](media/image7.wmf)    ![](media/image8.wmf)

  Weighing                 Scale n (n = 1,2, \...)  Range n (n = 1,2, ...)   High resolution

  1.9                      1.10                     1.11                     1.12

  ![](media/image9.wmf)    ![](media/image10.wmf)   ![](media/image11.wmf)   ![](media/image12.wmf)

  Not for direct sales to  Zero setting             Combined zero/tare - See Taring
  the public                                        S.2.1.6. for additional  
                                                    required markings        

  1.13                     1.14                     1.15                     1.16

  ![](media/image13.wmf)   ![](media/image14.wmf)   ![](media/image15.wmf)   ![](media/image16.wmf)

  Enter tare               Verify tare              Combined tare/clear      Clear tare

  1.17                     1.18                     1.19                     1.20

  ![](media/image17.wmf)   ![](media/image18.wmf)   ![](media/image19.wmf)   ![](media/image20.wmf)

  Mass/Weight              Money                    Price per weight unit    Piece count

  1.21                     1.22                     1.23                     1.24

  ![](media/image21.wmf)   ![](media/image22.wmf)   ![](media/image23.wmf)   ![](media/image24.wmf)

  Counter                  Read counter             Print                    Print certificate

  1.25                                                                       

  ![](media/image25.wmf)                                                     

  Information                                                                
  ---------------------------------------------------------------------------------------------------

**Discussion:** The above symbols are internationally accepted weighing
symbols and registered with the DIN (Deutsches Institut FÜr Normung)
(Germany) and IEC (International Electrotechnical Commission). There was
general agreement that NTEP should recognize international symbols
whenever possible. The majority of the symbols are intended to be used
in the operation of the devices and would likely be defined in the
operator's manuals. There were additional concerns regarding the
increased number of customer-operated devices and the use of many of
these symbols without additional markings or descriptions.

The Sector discussions addressed symbols that would be available to the
customer. More specifically, the symbols for indirect sales (1.9), money
(1.18), and price per unit weight (1.19), are not well known in the U.S.
and should not be used without additional information for the customer.

The Sector also discussed the list's lack of availability to weights and
measure officials that do not have access to Publication 14 and other
international documents. It was suggested that the list of symbols be
made available on the NCWM and NIST web sites and that they be
incorporated into weights and measures bulletins, examination procedure
outlines, and inspector training modules.

**Conclusion:** The Sector recommends that these symbols be incorporated
into NCWM Publication 14. The symbols intended for the customer
(including customer-operated devices) cannot be used without additional
descriptions or markings on the device. Additionally, the list will
include a note that the symbols should be used as a guide and that style
differences are acceptable (e.g., shapes of arrows). The Sector also
requests that NCWM and NIST explore the possibility of distributing the
list of symbols through the use of weights and measures bulletins, web
sites, examination procedures, and training information. The Sector
further recommends that the list of acceptable symbols can be removed
from Publication 14 upon greater customer familiarity and acceptance of
the symbols.

5.  []{#__RefHeading___Toc58813049 .anchor}**Shift Testing on
    Multi-Interval Scales**

**Source:** Ohio Participating NTEP Laboratory

**Background:** Publication 14, Section 31, page (Digital Electronic
Scales) DES-49 does not address shift tests on multi‑interval scales.
The participating laboratories have been taught to treat each range as a
separate scale for the determination of tolerances. Publication 14 is
unclear if shift tests for multi-interval devices should be conducted at
one‑half capacity of each weighing range where the shift test load might
fall in the first range or if the shift test load should be determined
based on the maximum capacity of the scale with the tolerance being
based upon the weighing range of the test load.

The NIST technical advisor reviewed both OIML and Handbook 44 documents
for references to shift tests. Neither document makes any special
references to shift tests for multi-interval scales.

OIML R 76 paragraph 3.6.2.1. Eccentric loading (page 25) states:

> 3.6.2.1. Unless otherwise specified hereafter, a load corresponding to
> one-third (1/3) of the sum of the maximum capacity and the
> corresponding maximum additive tare effect shall be applied." There
> are no additional references to eccentric loading with respect to
> multi-interval scales.

NIST Handbook 44 states:

> Number range CHAPTER**N.1.3.1. Bench or Counter Scales.** - A shift
> test shall be conducted with a half-capacity test load centered
> successively at four points equidis­tant between the center and the
> front, left, back, and right edges of the load‑receiving element.

**2002 Sector Discussion:** Some of the Sector members indicated that it
is possible to have two test loads in the same range if testing is
performed at one-half capacity of each range. Manufacturers also noted
that multi-interval and multiple-range scales should be treated
differently because a multiple-range scale with ***n*** ranges is
essentially ***n*** number of scales (where ***n*** represents the
number of ranges). A multi-interval scale with more than one minimum
interval is still one scale. It is technically incorrect for Publication
14 to state that a multi-interval scale has ranges.

**2002 Sector Conclusion:** Darrell Flocken, Mettler-Toledo, volunteered
to review US/Canadian training manuals to identify differences between
U.S. and Canada. Additionally, they agreed to work with the NIST
technical advisor in developing Publication 14 shift test procedures for
multi-interval scales. The 2003 meetings of the participating
laboratories and Weighing Sector will review the procedures.

Bill West and Darrell Flocken submitted the following proposed language
for Publication 14 DES Checklist Section 31 Multi-Interval Scales. The
Sector will be asked to review and comment on the proposed language and
provide the NTEP Committee with recommendations to amend Publication 14.

> **31. Multi-Interval Scales**
>
> A multi-interval scale is an instrument having one weighing range that
> is divided into partial weighing segments. Each weighing segment is
> defined by its division size, its minimum capacity, and its maximum
> capacity. The selection of the appropriate weighing segment is
> determined automatically according to the load applied, both on
> increasing and decreasing loads. The shift test shall be conducted at
> one-half the capacity of the scale. Corner tests, if appropriate,
> shall be run at one-quarter of the scale capacity. The number of scale
> divisions, *n*, for each weighing segment is determined by dividing
> the maximum capacity of the weighing segment by *e* of the same
> weighing segment. In the case of multi-interval scales, *e* must be
> equal to *d* (see S.5.3.).
>
> Example:

  --------------- -------------- ----------- -------------- ---------------
  Weighing                                                  
  segment                                                   

  Minimum         Maximum        *e*         *n*            
  Capacity        Capacity                                  

  0 kg            3 kg           1 g         3000           (3000/1)

  3 kg            6 kg           2 g         3000           (6000/2)

  6 kg            15 kg          5 g         3000           (15000/5)
  --------------- -------------- ----------- -------------- ---------------

> The number of divisions for each weighing segment must meet Table 3 of
> the Scales Code. The capacity and verification scale division must be
> conspicuously marked near the weight display.
>
> Since weighing segments on a multi-interval scale may not overlap, the
> capacity statement for each weighing segment and the weight in the
> weight display is a sufficient indication of the weighing segment in
> use.
>
> A multi-interval scale shall operate as follows:

-   The motion detection requirement must be satisfied for each scale
    division (see S.2.1.5.).

-   The division size for the first weighing segment applies to the
    tests to determine the width of zero and the amount of the
    automatic-zero setting mechanism.

-   The scale division must change when a lower weighing segment reaches
    its maximum value so that rounding occurs properly and the number of
    displayed decimal places does not change within the same weight
    indication.

> Example: Suppose a scale has the following weighing segments:
>
> Capacity: 0-10 lb x 0.005 lb
>
> 10-30 lb x 0.01 lb
>
> The scale indication for a 10-lb load must be 10.00 lb, not 10.000 lb.
> Once the scale has exceeded an internal weight indication of 9.9975
> lb, it must round to the next higher weight indication. If 10.000 lb
> were to be indicated, a load perceived internally as 10.003 lb would
> result in the scale indicating in some manner that it is no longer
> sensing 10.000 lb [+]{.underline} 0.0025 lb; hence, it would then
> indicate 10.00 lb. This round-off problem is avoided by causing the
> scale to indicate 10.00 when sensing a load in excess of 9.9975 lb
> (based upon its internal resolution). The scale will continue to
> indicate 10.00 lb until its internal resolution senses a load in
> excess of 10.005 lb, whereupon the weight display will update to 10.01
> lb.

-   There are several considerations regarding the proper operation of
    tare on multi-interval scales.

```{=html}
<!-- -->
```
-   All tares must be taken in the minimum increment. Therefore, the
    maximum tare allowed is the maximum capacity of the smallest
    weighing segment.

-   Whenever gross and tare weights fall in different weighing segments,
    (hence the scale divisions for the gross and tare weights differ),
    the net weight must be in mathematical agreement with the gross and
    tare weights that are indicated and recorded (i.e., net = gross -
    tare).

-   Manually entered keyboard, thumb-wheel, and digital tare values must
    be entered to the displayed scale division.

> In applying these principles, it is acceptable to:

-   round the tare value (in the upward direction) to the appropriate
    net weight scale division.

-   or display net weight values in scale divisions other than the scale
    division used in the display of gross weight, as when the gross and
    tare weights are in different segments of the device. For example, a
    scale indicating in 2-lb divisions in the lower segment and 5-lb
    divisions in the next higher segment may result in net values ending
    in three or eight in the higher segment.

In every case, it is required to maintain the mathematically correct
equation:

> net + tare = gross.

+----+-----+-----------------------------------------+---------------+
| 3  | The |                                         |               |
| 1. | req |                                         |               |
| 1. | uir |                                         |               |
|    | eme |                                         |               |
|    | nts |                                         |               |
|    | sp  |                                         |               |
|    | eci |                                         |               |
|    | fic |                                         |               |
|    | to  |                                         |               |
|    | mu  |                                         |               |
|    | lti |                                         |               |
|    | -in |                                         |               |
|    | ter |                                         |               |
|    | val |                                         |               |
|    | s   |                                         |               |
|    | cal |                                         |               |
|    | es, |                                         |               |
|    | s   |                                         |               |
|    | uch |                                         |               |
|    | as  |                                         |               |
|    | the |                                         |               |
|    | dis |                                         |               |
|    | pla |                                         |               |
|    | yed |                                         |               |
|    | sc  |                                         |               |
|    | ale |                                         |               |
|    | div |                                         |               |
|    | isi |                                         |               |
|    | on, |                                         |               |
|    | the |                                         |               |
|    | ope |                                         |               |
|    | rat |                                         |               |
|    | ion |                                         |               |
|    | of  |                                         |               |
|    | ta  |                                         |               |
|    | re, |                                         |               |
|    | and |                                         |               |
|    | the |                                         |               |
|    | mat |                                         |               |
|    | hem |                                         |               |
|    | ati |                                         |               |
|    | cal |                                         |               |
|    | agr |                                         |               |
|    | eem |                                         |               |
|    | ent |                                         |               |
|    | of  |                                         |               |
|    | gro |                                         |               |
|    | ss, |                                         |               |
|    | ta  |                                         |               |
|    | re, |                                         |               |
|    | and |                                         |               |
|    | net |                                         |               |
|    | v   |                                         |               |
|    | alu |                                         |               |
|    | es, |                                         |               |
|    | dep |                                         |               |
|    | end |                                         |               |
|    | on  |                                         |               |
|    | the |                                         |               |
|    | in  |                                         |               |
|    | for |                                         |               |
|    | mat |                                         |               |
|    | ion |                                         |               |
|    | t   |                                         |               |
|    | hat |                                         |               |
|    | can |                                         |               |
|    | be  |                                         |               |
|    | dis |                                         |               |
|    | pla |                                         |               |
|    | yed |                                         |               |
|    | or  |                                         |               |
|    | re  |                                         |               |
|    | cor |                                         |               |
|    | ded |                                         |               |
|    | by  |                                         |               |
|    | the |                                         |               |
|    | we  |                                         |               |
|    | igh |                                         |               |
|    | ing |                                         |               |
|    | sys |                                         |               |
|    | tem |                                         |               |
|    | and |                                         |               |
|    | may |                                         |               |
|    | be  |                                         |               |
|    | s   |                                         |               |
|    | umm |                                         |               |
|    | ari |                                         |               |
|    | zed |                                         |               |
|    | as  |                                         |               |
|    | fo  |                                         |               |
|    | llo |                                         |               |
|    | ws: |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | The number of scale divisions in each   | Yes No NA     |
|    | 1.1 | weighing segment must meet Table 3 of   |               |
|    |     | the Scales Code.                        |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | For all weighing segments, *e* must     | Yes No NA     |
|    | 1.2 | equal *d*.                              |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | The scale division for gross and        | Yes No NA     |
|    | 1.3 | positive or negative net weights for    |               |
|    |     | both increasing and decreasing loads    |               |
|    |     | must be displayed in scale divisions    |               |
|    |     | consistent with the weighing segment in |               |
|    |     | which the weight falls.                 |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | Weight indications at the break-over    | Yes No NA     |
|    | 1.4 | point of weighing segments must be      |               |
|    |     | displayed properly.                     |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | Tare may be taken to the maximum        | Yes No NA     |
|    | 1.5 | capacity of the smallest weighing       |               |
|    |     | segment of the scale.                   |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | Keyboard tare entries must be           | Yes No NA     |
|    | 1.6 | consistent with the displayed division  |               |
|    |     | size. Incorrect entries may be rounded  |               |
|    |     | to the displayed scale division or      |               |
|    |     | rejected.                               |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | Devices equipped with a tare capability | Yes No NA     |
|    | 1.7 | must at all times indicate and record   |               |
|    |     | values that satisfy the equation net =  |               |
|    |     | gross - tare.                           |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | Devices equipped with push-button tare  | Yes No NA     |
|    | 1.8 | must meet the tolerances for net loads  |               |
|    |     | for any tare value.                     |               |
+----+-----+-----------------------------------------+---------------+
|    | 31. | Scales that display or record only net  |               |
|    | 1.9 | weight values(e.g., most computing      |               |
|    |     | scales)                                 |               |
+----+-----+-----------------------------------------+---------------+
|    |     | -   may take tare values to either the  | Yes No NA     |
|    |     |     internal resolution or the          |               |
|    |     |     displayed scale division.           |               |
+----+-----+-----------------------------------------+---------------+
|    |     | -   must always begin with the lowest   | Yes No NA     |
|    |     |     weighing segment on the device      |               |
|    |     |     regardless of the amount of tare    |               |
|    |     |     that is taken.                      |               |
+----+-----+-----------------------------------------+---------------+

Discussion: The Sector reviewed the languages submitted by Bill West and
Darrell Flocken and generally agrees that the proposed language should
be incorporated into Publication 14. The Sector was concerned with the
definition of multi‑interval scale in Handbook 44 and believed the
definition was a possible source of the current confusion surrounding
the application of shift test loads on multi-interval and multiple-range
scales. NIST Handbook 44 Appendix D, Definition, states that a
multi-interval scale is a scale that has one range divided into partial
ranges with different intervals for each partial weighing range. This is
frequently confused with a multiple-range scale, which is a scale that
has more than one range with different intervals for each range. The
language submitted by Darrell Flocken and Bill West recommended
replacing the term "partial weighing range" with "partial weighing
segment" in order to further highlight the differences between the two
type of scales.

Conclusion: The Sector agreed to recommend the above language for
incorporation into Publication 14. The Sector also recommends that the
definition of multi-interval scale be amended to highlight the
differences between multi-interval and multiple-range scales. The Sector
asked the NIST technical advisor to develop amended language for the
definition of multi-interval scale that can be submitted to the NCWM
Specifications and Tolerance Committee.

After the meeting, NIST technical advisor to the Weighing Sector (WS)
discussed the above recommendation with the NIST technical advisors to
the NCWM Specifications and Tolerance Committee (S&T). They could not
support replacing the term "partial weighing range" with "partial
weighing segment" in Handbook 44 since there was insufficient
justification to amend the original definition that is based upon
international terminology. However, the technical advisors (WS and S&T)
agreed that the definition could be amended editorially by inserting the
term "segment" as a parenthetical equivalent for "partial weighing
range" as follows:

> **multi-interval scale.** A scale having one weighing range which is
> divided into partial weighing ranges [(segments)]{.underline}, each
> with different scale intervals, with the weighing range
> [(segment)]{.underline} determined automatically according to the load
> applied, both on increasing and decreasing loads.

6.  []{#__RefHeading___Toc58813050 .anchor}**Inconsistent Information on
    a CC**

**Source:** 2002 Weighing Sector Item 23

**Background:** It was noted during the 2002 meeting of the Weighing
Sector that features and options both metrological and non-metrological
are still being included on NTEP Certificates of Conformance (CCs). For
example, the term "screen tare" was listed on a CC. This term is a
well-understood term and lacks a description or definition.
Additionally, the term "memory recall" should describe what is stored in
memory (e.g., tare, gross, net, weights, unit prices, customer
information). The participating laboratory that submitted this agenda
item stated that features on CCs that have not been successfully tested
or evaluated should not be listed on the CC. They also stated that it is
important to list peripheral equipment in test conditions. This subject
was discussed and a recommendation was made during the 1992 Weighing
Sector meeting (item 6) but was never incorporated into the Pub 14.
Section "Models".

The following discussion and conclusion is from the June 1992 Weighing
Sector Summary for Agenda item 6:

> 6\. Identifying the Main Elements of a Scale on Certificates of
> Conformance
>
> ***Background and Discussion:*** It was proposed that CCs for Class
> III L scales should be written for complete scales (that is, list all
> of the main elements and components used during the evaluation) and
> that the CC should not be issued for just the weighing/load-receiving
> elements. It was also commented that the main elements and load cells
> used to comprise the complete system must be certified components.
>
> NTEP issues separate CCs for main elements and load cells in order
> that the manufacturer, installer, and user will have the flexibility
> of choosing from among compatible main elements that have been
> evaluated by NTEP. It was stated that this substitution can only be
> made if information about the indicator used in the evaluation of the
> weighing/load-receiving element is known; this, along with the use of
> applicable formulas, would enable the customer and weights and
> measures official to judge whether or not a given indicator is
> compatible for substitution. This information has not been
> consistently identified on the CC in the past.
>
> The primary area of concern with this issue appeared to be that of
> indicators (separable indicating elements) without NTEP CCs being used
> during NTEP evaluations of large-capacity weighing/load-receiving
> elements. It was commented that the load cell(s) used during an NTEP
> evaluation is (are) required to have a valid NTEP CC and that the
> indicator should also be required to have a valid CC. NTEP has not
> always required the indicator used during an NTEP evaluation of a
> weighing/load-receiving element to have a valid NTEP CC. If an
> indicator without an NTEP CC performed worse than an indicator with an
> NTEP CC, then the performance of the weighing/load-receiving element
> may not be as good. If the manufacturer is willing to risk the results
> of the evaluation by using a non-NTEP indicator, the NTEP laboratories
> feel that the manufacturer should be permitted to make this choice. It
> is expected that use of the weighing/load-receiving element with an
> indicator that has an NTEP CC (as would be required by the weights and
> measures official) should be better than the performance observed with
> the non-NTEP indicator.
>
> ***Conclusions:*** The Committee agreed that CCs should detail the
> main elements, load cells, and auxiliary devices used during an
> evaluation, including model designation and other significant
> parameters, under the \"Test Conditions\" portion of the CC. The
> Committee agreed that Certificates should not limit a scale system to
> the specific combination of load cell, indicator, and
> weighing/load-receiving element used during the type evaluation;
> substitutions (\"mixing and matching\") of metrologically equivalent
> components should continue to be recognized according to current NTEP
> policy. Each weights and measures jurisdiction should require that the
> individual main elements and load cells comprising a weighing system
> (the indicator, load cell(s), and weighing/load-receiving element)
> each have a valid NTEP CC and that the components are compatible and
> suitable for the installation. The Committee agreed that NTEP will
> continue to permit non-NTEP evaluated indicators and peripheral
> equipment to be used in the evaluation of a weighing/load-receiving
> element under certain conditions; however, the load cell used in
> electronic or electro-mechanical devices must have a current NTEP CC.

**2002 Sector Discussion/Conclusion:** The Sector reviewed the above
background information and agreed that the language in the conclusion of
the June 1992 Sector Summary would benefit field inspectors and NTEP
evaluators. The Sector reconfirmed that non-metrological accessories and
peripheral equipment (printing elements, video displays, etc.) used as
part of the evaluation should be listed in the "Test Conditions"
paragraph as verification that metrological features such as indicated
and recorded representations have been evaluated. Additionally, the
Sector reconfirmed that the CC does not limit the use of
non-metrological peripheral equipment to those listed.

The Sector recommended that the following underlined language be added
to the NTEP Publication 14 Administrative Procedures in paragraph P.
Certificate of Conformance to facilitate consistent information included
on the Certificate of Conformance.

> [P.6. CCs should detail the main elements, load cells, and auxiliary
> devices used during an evaluation, including model designation and
> other significant parameters, under the \"Test Conditions\" portion of
> the CC. Only the standard features and options that have been
> evaluated will be included on the CC.]{.underline}

At the January 2003 NCWM Interim Meeting, the NTEP Committee considered
the above recommendation. The Committee did not agree with the Weighing
Sector and stated that the recommended policy does not affect the
administration of NTEP and should be considered as a technical policy.
The Committee recommended the participating laboratories and Weighing
Sector reconsider the item during the 2003 meeting of the NTETC Weighing
Sector. As a response to the NTEP Committee decision, the NIST technical
advisor submitted the following addition to Publication 14, Chapter 1,
NTEP Technical Policy for Scales for consideration by the Sector
*(**Note:** Similar language should be submitted to the other Sectors
for consideration.)*:

**B. Certificate of Conformance Parameters (Page DES-1)**

> **[Certificates of Conformance (CC) should detail the main elements,
> load cells, and auxiliary devices used during an evaluation, including
> model designation and other significant parameters, under the \"Test
> Conditions\" portion of the CC. Only the standard features and options
> that have been evaluated will be included on the CC.]{.underline}**

**The following guidelines apply . . .**

**Discussion:** The Sector supported that language developed by the
technical advisor and recommended that the proposed language should
***require*** that CCs detail the main elements by using the term "shall
detail" instead of "should detail." Additionally, the Sector recommended
that the first paragraph in Section A. Models to be Submitted for
Evaluation should be amended to state the non-metrological features may
be listed on the certificate provided that it has been "evaluated" to
operate as intended since the use of the term "tested" implies that
specific tests were conducted. One of the Sector members stated that
non-metrological functions should not be listed on a CC and stated that
is should be considered during a future meeting of the NTETC Weighing
Sector.

The Sector also addressed how to handle existing CCs that listed
unnecessary or inadequate information on the certificate. The NTEP
director noted that eventually all active certificates would be updated
as the NTEP Conformity Assessment Program evolves.

**Conclusion:** The Sector recommends that NCWM Publication 14, NTEP
Policy for Scales, Section A be amended as follows:

> A. Models to be Submitted for Evaluation
>
> A type is a model or models of the same design, as defined in the NTEP
> Policy and Procedures. A complete list and description of all models
> of a type to be included on the Certificate of Conformance (CC) shall
> be submitted with the request for type evaluation. All options and
> features to be included on the CC must be submitted for evaluation.
> Non-metrological features may be listed on a CC, but only if the
> feature has been [evaluated]{.underline} ~~tested~~ and operates as
> intended. If the CC is to include more than one model of the same
> type, the applicant shall contact the evaluation agency to determine
> which model or models will be evaluated. A CC will be amended when
> [the manufacturer adds new models of the same type meeting the
> specified criteria]{.underline} ~~new models of the same type meeting
> the specified criteria are added by the manufacturer~~.
>
> Applicants of remanufactured weighing devices and load cells are
> reminded that any device submitted for evaluation shall comply with
> all applicable requirements in Handbook 44, including non-retroactive
> requirements, as if it were a newly manufactured device. All
> references to \"device(s)\" are considered to include remanufactured
> device(s).
>
> B. Certificate of Conformance Parameters
>
> [A Certificate of Conformance (CC) shall detail the main elements,
> load cells, and auxiliary devices used during an evaluation, including
> model designation and other significant parameters, under the \"Test
> Conditions\" portion of the CC. Only the standard features and options
> that have been evaluated will be included on the CC.]{.underline}
>
> The following guidelines apply . . ..

7.  []{#__RefHeading___Toc58813051 .anchor}**Submission of Scales with
    Nominal Voltages of 85 to 240 VAC to NTEP**

**Source:** 2002 Weighing Sector Agenda Item 24

See agenda item 14d for specific language and suggested Publication 14
test procedures.

**Discussion/Conclusion:** The Sector agreed to discuss this item in
conjunction with 2003 Weighing Sector Agenda Item 14d.

8.  []{#__RefHeading___Toc58813052 .anchor}**Audit Trail Information
    during Power Failure**

**Source: 2002 Weighing Sector Agenda Item 25**

**Background:** During the evaluation of a device with an electronic
means of sealing, an NTEP laboratory noted that the device accepted the
updated calibration and configuration, but the event counters remained
at their previous count if there was a power loss while in the
calibration mode. The participating laboratories agreed that this could
be used fraudulently to avoid giving an indication that a calibration or
configuration adjustment had occurred and that NCWM Publication 14
should be amended to look for this condition.

The following is from the 2002 Weighing Sector Final Summary:

> **Discussion:** The participating laboratories reported that this and
> similar conditions have been discovered on more than one type of
> device. In another example, a scale appeared to accept calibration and
> configuration changes. However, the final act of pressing a button to
> accept the change was not performed. The scale appeared to be
> operating with the updated parameters until power was turned off. The
> scale reverted to the previously stored parameters and event counter
> information.
>
> One of the manufacturers was concerned about changes to the count
> indicated on the event counter. Replacement of the event counters or a
> master reset on a computer causes a change of audit trail information
> that can be investigated by the field inspector. One of the
> manufacturers stated that it is unlikely that a non-resetable event
> counter can be set to specific counts in order to match the counter
> that is being replaced.
>
> Some of the participating laboratories indicated that a change in
> event counters or a master reset of the computer is not the issue of
> this item because there is a change in the audit trail information
> that can be investigated by an inspector. The issue at hand is
> primarily the intentional or unintentional change in calibration or
> configuration parameters without advancing the information on the
> event counters.
>
> The manufacturers understand that an event is when there is a change.
> The reported problems are likely caused by programmers who did not
> specify that sealable parameter settings and event counter information
> should be stored in the event of a power failure (or an error
> indication).
>
> **Conclusion:** The Sector recognized that replacing printed circuit
> boards may clear existing audit trail information and that the
> resultant change in event counter information is in compliance with
> Handbook 44. It is the responsibility of the inspector to investigate
> the change(s) before enforcement action can be taken. Additionally,
> service and repair companies would likely have information available
> to the inspector documenting changes to calibration and configuration
> and even the replacement of printed circuit boards and microprocessor
> chips affecting event counter information.
>
> The Ohio and California participating laboratories agreed to develop
> language to verify audit trail change information during the event of
> power interruptions and improper calibration procedures. The language
> should be available for review and comment prior to the 2003 meeting
> of the participating laboratories and Weighing Sector.

Bill West (OH) and Joe Raspino (CA) developed the following proposed
changes to Publication 14 for digital electronic scales (text with the
double underline have been added by the NIST technical advisor).

> **10. Provisions for Sealing of Adjustable Components or Audit Trail**

**Code Reference S.1.11.**

**Audit Trails -- General (page DES-27)**

  -------------------- ----------------------------------------------- -------------------
  [10.5]{.underline}   [After changes have been made to configuration  [Yes]{.underline}
                       and/or calibration, while still in the          [No]{.underline}
                       configuration or calibration mode, interrupt    [NA]{.underline}
                       the power to the device. The event counters     
                       should not increment unless the changes are     
                       accepted by the device.]{.underline}            

  -------------------- ----------------------------------------------- -------------------

***Renumber remaining paragraphs.***

> **19. Facilitation of Fraud - Appropriate Design (page DES-43)**
>
> **Code References: G-S.2 and G-S.5.1.**
>
> **Power Interruptions**

After a momentary (up to ten seconds) power interruption, an indicating
element shall either return to zero, display an accurate weight value
(gross or net) that is within one division of the value that was
displayed before the power failure (relative to the gross load zero
reference that existed prior to the power interruption and assuming no
change in load), display an error signal, or display meaningless
information that cannot be interpreted as a weight value and which
requires operator intervention to return the scale to operation.
Examples of meaningless information are \-\-\--, EEE, 6CE1, etc.
Information stored in non-volatile memory (e.g., inbound weights and
uncompleted transactions) shall not be lost during a power failure or
when system is restarted.

> [The audit trail]{.underline} event [counters should not increment
> after a power interruption if changes have been made to the
> calibration and/or configuration parameters but not accepted by the
> device.]{.underline} Alternatively, the counters shall increment after
> a power interruption if the device accepts the changes. [It has been
> found in some devices the changes are stored temporarily but the audit
> trail counters do not increment until the operator exits from the
> set-up mode. In this case the audit trail counters possibly may
> increment but the changes may not be applied or accepted by the device
> after a power interruption.]{.underline}

**Discussion:** The Sector agreed with the problems identified by the
participating laboratories and reviewed the language submitted by Bill
West (OH) and Joe Raspino (CA) to amend Publication 14. The Sector
commented that the term "should" be replaced by "shall" in the proposed
paragraph 10.5 and that the statement should be consistent with
Publication 14 "General Requirements for Metrological Audit Trails. One
of the manufacturers stated that the statement should also be rephrased
so that it is a positive statement.

**Conclusion:** The Sector recommends that NCWM Publication 14, NTEP
Policy for Scales, Section K, paragraphs 10.5 and 19 be amended as
follows:

**10. Provisions for Sealing of Adjustable Components or Audit Trail**

**Code Reference S.1.11.**

> **Audit Trails -- General (page DES-27) -- Add a new paragraph 10.5
> and renumber remaining paragraphs.**
>
> [10.5 After changes have been made to configuration and/or
> calibration, while still in the configuration or calibration mode,
> interrupt the power to the device and exit the calibration or
> configuration mode.]{.underline}
>
> [Verify that the device has accepted the changes and that the event
> counter shall incremented. Yes No NA]{.underline}
>
> **19. Facilitation of Fraud - Appropriate Design (page DES-43)**
>
> **Code References: G-S.2 and G-S.5.1.**
>
> **Power Interruptions**

After a momentary (up to ten seconds) power interruption, an indicating
element shall either return to zero, display an accurate weight value
(gross or net) that is within one division of the value that was
displayed before the power failure (relative to the gross load zero
reference that existed prior to the power interruption and assuming no
change in load), display an error signal, or display meaningless
information that cannot be interpreted as a weight value and which
requires operator intervention to return the scale to operation.
Examples of meaningless information are \-\-\--, EEE, 6CE1, etc.
Information stored in non-volatile memory (e.g., inbound weights and
uncompleted transactions) shall not be lost during a power failure or
when system is restarted.

> [The audit trail event counters should not increment after a power
> interruption if changes have been made to the calibration and/or
> configuration parameters but not accepted by the device.
> Alternatively, the counters shall increment after a power interruption
> if the device accepts the changes. It has been found in some devices
> the changes are stored temporarily but the audit trail counters do not
> increment until the operator exits from the set-up mode. In this case
> the audit trail counters possibly may increment but the changes may
> not be applied or accepted by the device after a power
> interruption.]{.underline}

[]{#__RefHeading___Toc58813053 .anchor}**9. Performance and Permanence
Testing**

**Source:** 2002 Weighing Sector Agenda Item 26

**Background:** The NTEP director has noted inconsistencies in
performance and permanence sections in Chapter 1, Sections 62, 63, and
65. At its 2002 meeting the Weighing Sector concluded that the NIST
technical advisor and NTEP director made the corresponding editorial
corrections and submitted them to the NTEP Committee for its acceptance
prior to publishing the 2003 edition of Publication 14.

**Discussion/Conclusion:** The Sector agreed no further action is
required.

[]{#__RefHeading___Toc58813054 .anchor}**10. Range of IZSM on Indicating
Elements**

**Source:** 2002 Weighing Sector Agenda Item 29

**Background:** This item was carried over from the 2002 meeting of the
Weighing Sector since the Sector did not have time to complete the
review and discussion. The following has been copied from the 2002
Weighing Sector Final Summary:

> Electronic indicating elements have been submitted with an Initial
> Zero-Setting Mechanism (IZSM) of 100 % of the configured capacity of
> the indicator. When the participating laboratories inform the
> manufacturer the indicator would have to be tested up to the maximum
> IZSM range with a load-receiving element, the manufacturers have
> always reduced the IZSM range.
>
> NTEP does not test load-receiving elements up to 200 % of their
> configured capacity. Therefore NTEP should not allow an indicating
> element to have an IZSM range up to 100 % of the capacity of the
> load-receiving element used during the evaluation of the indicator.
> The NIST technical advisor notes that load-receiving elements, from
> bench scales to railroad-track scale load-receiving elements have not
> been submitted or tested with an IZSM feature unless the submission
> was to be treated as a complete scale with a specific indicating
> element. Therefore, the possibility exists that many load-receiving
> elements, consisting of only load-cell support structures, may not
> comply with an indication element configured with IZSM enabled. Should
> electronic indicating elements have IZSM? If so, how much? Should IZSM
> be limited to just complete scales?
>
> **Recommendation:** The Sector was asked to review and consider the
> following Canadian requirements.
>
> **LG-15.04 IZSM Range (Maximum Range of Initial Zero-Setting
> Mechanism)**
>
> The load-receiving element, which will be interfaced with an
> electronic indicator that has been tested and approved separately,
> will not have been tested up to 200 % of maximum range of IZSM.
> Consequently, the maximum Initial Zero‑Setting Mechanism range of
> electronic indicators must be limited to 20 % of its configured
> capacity.
>
> An electronic indicator tested and approved separately is deemed to
> comply with the requirements when the total range of the Initial
> Zero-Setting Mechanism (absolute value of -*ve* portion of the range
> plus the +*ve* portion of the range) does not exceed 20 % (or can be
> set to a maximum of 20 % and sealed) of the device under test\'s
> (DUT\'s) maximum capacity (Max); the IZSM range of a complete
> electronic device may exceed 20 % of Max if the device performs within
> tolerances when the IZSM is set at the minimum and maximum points of
> its range.
>
> When the IZSM range is limited to 20 %, performance tests are
> conducted once: at the maximum IZSM setting. When the IZSM range
> exceeds 20 %, certain performance tests are conducted twice: at the
> minimum and at the maximum setting of the range. See description of
> the performance tests in Part 3.
>
> **Discussion:** At the 2002 Weighing Sector meeting, some of the
> manufacturers stated that IZSM on separable indicating elements is
> just an electronic starting point and there should be no performance
> difference settings up to 100 %. The manufacturer of the
> load-receiving element has the responsibility to make its device
> perform with the maximum live and dead load (i.e., a 100-lb
> load-receiving element with a 500-lb load cell).
>
> Other Sector members stated that if the IZSM is adjustable to 20 % or
> less on an indicating element, no additional testing should be
> required. If the IZSM is adjustable beyond 20 %, the applicant shall
> provide equipment (load-receiving element, a switch box, etc.) to
> facilitate testing up to the IZSM limit.
>
> Many of the manufacturers were concerned that prohibiting or limiting
> the size of IZSM on separable indicating elements may restrict the
> modular "mix and match" approach because the manufacturer of the
> indicating element may not know the amount of IZSM permitted on
> devices which the indicating element will be interfaced.
>
> Canada reported that IZSM is limited to 20 % of the configured scale
> capacity.
>
> One of the manufacturers suggested that the Sector review WELMEC 1
> Guide 2 on testing indicators.
>
> **2002 Sector Conclusion:** The Sector discontinued discussion due to
> lack of time. The Sector has been requested to review US/Canadian
> checklist requirements for possible harmonization and WELMEC 2-1 Guide
> for Testing Indicators‑ (Non‑Automatic Weighing Instruments)
> (<http://www.welmec.org/publications/2-1.asp>). This item will be
> carried over to the next meeting of the Weighing Sector.

**Discussion:** The Sector reviewed attached information from
Measurement Canada and OIML R76 (attachment to Item 10). It was noted
that Measurement Canada limits IZSM on separable indicating elements to
20 % of the configured scale capacity. Discussions also included the
difference between scale adjustments to configure the initial dead load
calibrations and changes to the dead load that involve temporary
additions to the load‑receiving element. For example, changing the dead
load on a vehicle scale due to an accumulation of mud or debris can be
balanced off by the IZSM. Another manufacturer stated that adding a
conveyor system to a scale that exceeds 20 % of the scale capacity
should be allowed. The manufacturer can choose to either have the
load-receiving element evaluated to handle the additional dead load or
reduce its weighing capacity by the weight of the added conveyor system.

Some of the manufacturers stated that they need to set dead load values
with limits greater that 20 % of the scale capacity. The manufacturers
did not want the limitations because a restriction would limit their
flexibility to mix and match compatible elements. Other Sector members
stated that using IZSM above that 20 % limitation could metrologically
affect the performance of a scale that has not been designed for large
dead loads. Other manufacturers stated the dead load offset greater than
20 % scale capacity are rare and could be part of the "coarse zero"
adjustments in the configuration of a scale.

The NTEP director stated this feature should be considered a sealable
parameter according to the guidelines set out in the discussion of
sealable parameters in Publication 14 "Philosophy for Sealing." The
incompatible use of the feature may result in fraud (inaccurate
measurements) not easily detected or affecting the device\'s
compatibility with load-receiving elements that may or may not be
designed to handle additional dead load above 20 % capacity. Other
Sector members stated that additions to a load-receiving element that
exceeds 20 % of the scale capacity should be considered a modification
of type unless the net capacity is reduced by the amount of the added
dead load or the load-receiving element has been type evaluated to
accommodate initial zero load that exceeds 20 % of the maximum capacity.

**Conclusion:** The Sector recommends that Publication 14, Part K,
Section 10, Table of Scale Features and Parameters be amended as follows
to include language that IZSM separable indicating elements with IZSM
adjustments above 20 % of the configured scale capacity be considered a
sealable parameter.

+--------------------------------------+-------------------------------+
| Scale Features and Parameters        |                               |
+--------------------------------------+-------------------------------+
| Typical Scale Features to be Sealed  | Typical Scale Features and    |
|                                      | Parameters                    |
|                                      |                               |
|                                      | Not Required to be Sealed     |
+--------------------------------------+-------------------------------+
| Coarse zero                          | Automatic zero-setting        |
|                                      | mechanism (Selection of total |
| [Initial Zero-Setting Mechanism      | range, e.g., 4% or 100% of    |
| (IZSM) on separable indicating       | capacity)                     |
| elements with limits that that       |                               |
| **can** be adjusted more than 20%    | [IZSM on separable indicating |
| beyond the maximum capacity of the   | elements with limits that     |
| load-receiving element]{.underline}  | that **cannot** be adjusted   |
|                                      | more than 20 % beyond the     |
| Span                                 | maximum capacity of the       |
|                                      | load-receiving                |
| Linearity correction values          | element]{.underline}          |
|                                      |                               |
| Motion detection (on/off)            | Display update rate           |
|                                      |                               |
| Motion detection (number of          | Weigh-in/weigh-out operation  |
| divisions and speed of operation)    | (on/off)                      |
|                                      |                               |
| Number of samples averaged for       | Stored tare weight capability |
| weight readings                      | (e.g., computing scales and   |
|                                      | vehicle weight by information |
| Averaging time for weight            | number)                       |
| indications                          |                               |
|                                      | Selection of tare feature     |
| Selection of measurement units (if   | operation, e.g., keyboard or  |
| internally switched and not          | push-button tare (on/off)     |
| automatically displayed on the       |                               |
| indicator)                           | Product codes                 |
|                                      |                               |
| Division value, d                    | Commodity unit prices         |
|                                      |                               |
| Number of scale divisions, n         | Discounts                     |
|                                      |                               |
| Range of over capacity indications   | Baud rate for electronic data |
| (if it can be set to extend beyond   | transfer                      |
| regulatory limits)                   |                               |
|                                      | Manual Gross Weight Entries   |
| Automatic zero-setting mechanism     | for application where this    |
| (on/off) for bulk-weighers hopper    | feature is permitted in       |
| scales and all Class III L devices   | Handbook 44                   |
|                                      |                               |
| Automatic zero-setting mechanism     |                               |
| (range of a single step)             |                               |
|                                      |                               |
| 1/4 and 1/2 lb pricing capability or |                               |
| multiplier keys                      |                               |
|                                      |                               |
| Weight Classifier mode               |                               |
| (enabled/disabled)                   |                               |
|                                      |                               |
| Manual Gross Weight Entries          |                               |
| (enabled/disabled) for applications  |                               |
| where this feature is not permitted  |                               |
| in Handbook 44                       |                               |
+--------------------------------------+-------------------------------+

[]{#__RefHeading___Toc58813055 .anchor}**11. IZSM Test Procedures**

**Source:** 2002 Weighing Sector Agenda Item 30

**Background:** This item carried was carried over from the 2003
Weighing Sector meeting since the Sector did not have time to review the
subject at that meeting. The Sector was asked to review a recommendation
from the 1998 Weighing Sector meeting.

The following background information is from the 1998 Weighing Sector
Report:

> ***Background:*** At the June 1998 meeting of the NTEP laboratories
> the participants were asked to review a procedure for testing the
> initial zero-setting mechanism (IZSM) of a scale in the field. At this
> time, there also is no procedure in Publication 14 for testing this
> feature during an evaluation.
>
> During a September 1998 Asia Pacific Legal Metrology Forum (APLMF) R76
> training class a procedure was presented for testing IZSM. That
> procedure has been revised and adapted for possible inclusion in
> Publication 14 as outlined in the Appendix G below. Unless the Sector
> objects, the procedure was proposed to be included in the next edition
> of Publication 14. (See Attachment below.)
>
> ***Discussion:*** The Sector discussed the proposed procedure and
> pointed out that the last sentence needs to be changed from "determine
> if the device complies" to "indicates that additional testing should
> be performed". One of the labs indicated that some field officials
> have a difficult time determining if a device has an IZSM,
> particularly when the "on/off" switch is used to activate the
> zero-setting mechanism. The proposed procedure can be used for both
> lab and field evaluations.
>
> **Conclusion:** The Sector agreed that the laboratories would (will)
> begin using the procedure included in Appendix G. The procedure will
> be incorporated in Publication 14. The last sentence of the draft
> procedure will be changed from \"determine if the device complies\" to
> \"indicates that additional testing should be performed.\" The
> laboratories are asked to provide feedback to the Sector on any
> problems they encounter with the procedures.

At its 1998 meeting, the Weighing Sector proposed the following:

> **Item 1. Changes to Handbook 44 Scales Code**
>
> **S.2.1.5. Initial Zero-Setting Mechanism. -**
>
> \(a\) Scales of accuracy classes I, II, and III may be equipped with
> an initial zero-setting device.
>
> \(b\) [Complete Scales.]{.underline} An initial zero-setting mechanism
> shall not zero a load in excess of 20 % of the maximum capacity of the
> scale unless tests show that the scale meets all applicable tolerances
> for any amount of initial load compensated by this device within the
> specified range.
>
> *[(c) Separable Indicating Element Covered by a Separate CC. The
> maximum Initial Zero-Setting Mechanism range]{.underline}* *[(absolute
> value of the maximum load that can be removed from the dead load plus
> the maximum load that can be added to the dead load) of electronic
> indicators must be limited to 20 % of the scale
> capacity.]{.underline}*
>
> **Item 2. Changes to Publication 14 (2002 edition, page DES-61)**
>
> **40. Zero Indication**
>
> **Code References: S.1.1., S.1.1.1., [S.2.1.5]{.underline}, and
> G-S.5.1.**
>
> A digital electronic scale must indicate or record a zero-balance
> condition. An out-of-zero-balance indication on both sides of zero is
> required. The zero-balance indication may be a continuous digital zero
> indication or indicated by some other means, provided the scale either
> automatically inhibits the scale operation or returns to a
> digital-weight indication when an out-of-zero-balance condition
> exists. The alternative zero indication must be defined on the front
> of the device.
>
> A digital zero-balance indication shall represent zero within ±0.5
> scale division (±0.5 d). A digital indicating scale shall either
> automatically maintain a \"center-of-zero\" condition to ±0.25 d or
> less (through AZSM) or have a supplemental center-of-zero indicator
> that defines the zero-balance condition to ±0.25 d or less. The
> center--of-zero requirement applies to the gross load zero, but the
> center-of-zero indication may also be operational at the net load
> zero.
>
> Neither a + or - sign may appear with the zero indication. Appropriate
> indications for the zero balance and out-of-zero balance conditions
> are specified.
>
> If the scale is equipped with an initial zero-setting mechanism
> (IZSM), then the scale must be tested for compliance with the
> influence factors with the maximum load zeroed through the IZSM.
>
> ~~This is mandatory if the range~~ [When the IZSM range (absolute
> value of the maximum load that can be removed from the dead load plus
> the maximum load that can be added to the dead load) exceeds 20 % of
> the scale capacity, performance tests are conducted at the maximum
> setting of the range.]{.underline}
>
> [The IZSM range of a complete electronic scale may exceed 20 % of the
> scale capacity if the device performs within tolerances.]{.underline}
>
> [When the IZSM range is  20 % of the scale capacity, performance
> tests are conducted once at the maximum IZSM setting.]{.underline}

+----+-----+-----------------------------------------+---------------+
| [4 | [Is |                                         | Yes No NA     |
| 0. | the |                                         |               |
| 1] | sc  |                                         |               |
| {. | ale |                                         |               |
| un | eq  |                                         |               |
| de | uip |                                         |               |
| rl | ped |                                         |               |
| in | w   |                                         |               |
| e} | ith |                                         |               |
|    | an  |                                         |               |
|    | IZS |                                         |               |
|    | M?] |                                         |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | [If |                                         |               |
|    | y   |                                         |               |
|    | es, |                                         |               |
|    | t   |                                         |               |
|    | hen |                                         |               |
|    | w   |                                         |               |
|    | hat |                                         |               |
|    | is  |                                         |               |
|    | the |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | of  |                                         |               |
|    | the |                                         |               |
|    | IZ  |                                         |               |
|    | SM? |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_] |                                         |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    |     |                                         |               |
+----+-----+-----------------------------------------+---------------+
| [4 | [   |                                         |               |
| 0. | The |                                         |               |
| 2] | m   |                                         |               |
| {. | axi |                                         |               |
| un | mum |                                         |               |
| de | I   |                                         |               |
| rl | ZSM |                                         |               |
| in | ra  |                                         |               |
| e} | nge |                                         |               |
|    | of  |                                         |               |
|    | an  |                                         |               |
|    | e   |                                         |               |
|    | lec |                                         |               |
|    | tro |                                         |               |
|    | nic |                                         |               |
|    | ind |                                         |               |
|    | ica |                                         |               |
|    | tor |                                         |               |
|    | tes |                                         |               |
|    | ted |                                         |               |
|    | and |                                         |               |
|    | ap  |                                         |               |
|    | pro |                                         |               |
|    | ved |                                         |               |
|    | s   |                                         |               |
|    | epa |                                         |               |
|    | rat |                                         |               |
|    | ely |                                         |               |
|    | :]  |                                         |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | [4  | [does not exceed 20 % of the scale      | Yes No NA     |
|    | 0.2 | capacity]{.underline}                   |               |
|    | .1] |                                         |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    |     |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | [4  | [can be set to a maximum of 20 % of the | Yes No NA     |
|    | 0.2 | scale capacity and sealed]{.underline}  |               |
|    | .2] |                                         |               |
|    | {.u | ***Renumber subsequent paragraphs in    |               |
|    | nde | Section 40***                           |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+

**Discussion/Conclusion for Item 1 - Changes to Handbook 44 Scales
Code:** The Sector agreed with the 1998 Weighing Sector proposal to
amend Scales Code paragraph S.2.1.5. The 2003 Weighing Sector
recommended that the language for "complete scales" and "separable
indicating elements" should be consistent with the language used in
Scales Code Table S.6.3.a. and amended the proposal as follows:

> **S.2.1.5. Initial Zero-Setting Mechanism. -**
>
> \(a\) Scales of accuracy classes I, II, and III may be equipped with
> an initial zero-setting device.
>
> (b**) Weighing, load‑receiving, and indicating element in the same
> housing or covered on the same CC.** An initial zero-setting mechanism
> shall not zero a load in excess of 20 % of the maximum capacity of the
> scale unless tests show that the scale meets all applicable tolerances
> for any amount of initial load compensated by this device within the
> specified range.
>
> \(c\) *[**Indicating element not permanently attached to weighing and
> load-receiving elements be covered on a separate CC**. The maximum
> Initial Zero-Setting Mechanism range of electronic indicators must be
> limited to 20 % of the ~~scale~~ ~~capacity~~ configured
> capacity.]{.underline}*

**Discussion/Conclusion for Item 2 - Changes to Publication 14 (2003
edition, page DES-59):** There were no major discussions on this item or
significant updates to the proposed language. The Sector recommends that
the [underlined]{.underline} language in the proposal be incorporated
into NCWM Publication 14, Weighing Devices Technical Policy, Checklist,
and Test Procedures.

> 40\. Zero Indication
>
> Code References: S.1.1., S.1.1.1., [S.2.1.5,]{.underline} and G-S.5.1.
>
> A digital electronic scale must indicate or record a zero-balance
> condition. An out-of-zero-balance indication on both sides of zero is
> required. The zero-balance indication may be a continuous digital-zero
> indication or indicated by some other means, provided the scale either
> automatically inhibits the scale operation or returns to a
> digital-weight indication when an out-of-zero-balance condition
> exists. The alternative zero indication must be defined on the front
> of the device.
>
> A digital zero-balance indication shall represent zero within ±0.5
> scale division (±0.5 d). A digital indicating scale shall either
> automatically maintain a \"center-of-zero\" condition to ±0.25 d or
> less (through AZSM) or have a supplemental center‑of‑zero indicator
> that defines the zero-balance condition to ±0.25 d or less. The
> center‑of‑zero requirement applies to the gross load zero, but the
> center-of-zero indication may also be operational at the net load
> zero.
>
> Neither a + or - sign may appear with the zero indication. Appropriate
> indications for the zero balance and out-of-zero balance conditions
> are specified.
>
> If the scale is equipped with an initial zero-setting mechanism
> (IZSM), then the scale must be tested for compliance with the
> influence factors with the maximum load zeroed through the IZSM. This
> is mandatory if the range of the IZSM exceeds 20 % of the scale
> capacity.
>
> [When the IZSM range (absolute value of the maximum load that can be
> removed from the dead load plus the maximum load that can be added to
> the dead load) exceeds 20 % of the scale capacity, performance tests
> are conducted at the maximum setting of the range.]{.underline}
>
> [The IZSM range of a complete electronic scale may exceed 20 % of the
> scale capacity if the device performs within tolerances.]{.underline}
>
> [When the IZSM range is  20 % of the scale capacity, performance
> tests are conducted once at the maximum IZSM setting.]{.underline}

+----+-----+-----------------------------------------+---------------+
|    | [Is |                                         | Yes No NA     |
|    | the |                                         |               |
|    | sc  |                                         |               |
|    | ale |                                         |               |
|    | eq  |                                         |               |
|    | uip |                                         |               |
|    | ped |                                         |               |
|    | w   |                                         |               |
|    | ith |                                         |               |
|    | an  |                                         |               |
|    | IZS |                                         |               |
|    | M?] |                                         |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | [If |                                         |               |
|    | y   |                                         |               |
|    | es, |                                         |               |
|    | t   |                                         |               |
|    | hen |                                         |               |
|    | w   |                                         |               |
|    | hat |                                         |               |
|    | is  |                                         |               |
|    | the |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | of  |                                         |               |
|    | the |                                         |               |
|    | IZ  |                                         |               |
|    | SM? |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_] |                                         |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 4  | The |                                         |               |
| 0. | sc  |                                         |               |
| 1. | ale |                                         |               |
|    | d   |                                         |               |
|    | efi |                                         |               |
|    | nes |                                         |               |
|    | z   |                                         |               |
|    | ero |                                         |               |
|    | wit |                                         |               |
|    | hin |                                         |               |
|    | ±   |                                         |               |
|    | 0.5 |                                         |               |
|    | d   |                                         |               |
|    | by  |                                         |               |
|    | a   |                                         |               |
|    | c   |                                         |               |
|    | ont |                                         |               |
|    | inu |                                         |               |
|    | ous |                                         |               |
|    | z   |                                         |               |
|    | ero |                                         |               |
|    | in  |                                         |               |
|    | dic |                                         |               |
|    | ati |                                         |               |
|    | on. |                                         |               |
|    | Rec |                                         |               |
|    | ord |                                         |               |
|    | the |                                         |               |
|    | t   |                                         |               |
|    | ype |                                         |               |
|    | of  |                                         |               |
|    | wei |                                         |               |
|    | ght |                                         |               |
|    | u   |                                         |               |
|    | nit |                                         |               |
|    | sel |                                         |               |
|    | ect |                                         |               |
|    | ion |                                         |               |
|    | (e. |                                         |               |
|    | g., |                                         |               |
|    | l   |                                         |               |
|    | b/k |                                         |               |
|    | g). |                                         |               |
|    |     |                                         |               |
|    | EX  |                                         |               |
|    | TER |                                         |               |
|    | NAL |                                         |               |
|    |     |                                         |               |
|    | IN  |                                         |               |
|    | TER |                                         |               |
|    | NAL |                                         |               |
|    |     |                                         |               |
|    | NA  |                                         |               |
|    |     |                                         |               |
|    | Rec |                                         |               |
|    | ord |                                         |               |
|    | the |                                         |               |
|    | act |                                         |               |
|    | ual |                                         |               |
|    | z   |                                         |               |
|    | ero |                                         |               |
|    | wi  |                                         |               |
|    | dth |                                         |               |
|    | in  |                                         |               |
|    | d   |                                         |               |
|    | (n  |                                         |               |
|    | ote |                                         |               |
|    | w   |                                         |               |
|    | het |                                         |               |
|    | her |                                         |               |
|    | avo |                                         |               |
|    | ird |                                         |               |
|    | upo |                                         |               |
|    | is, |                                         |               |
|    | m   |                                         |               |
|    | etr |                                         |               |
|    | ic, |                                         |               |
|    | or  |                                         |               |
|    | ot  |                                         |               |
|    | her |                                         |               |
|    | uni |                                         |               |
|    | t). |                                         |               |
|    |     |                                         |               |
|    | AV  |                                         |               |
|    | OIR |                                         |               |
|    | DUP |                                         |               |
|    | OIS |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_d |                                         |               |
|    |     |                                         |               |
|    | MET |                                         |               |
|    | RIC |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_d |                                         |               |
|    |     |                                         |               |
|    | OT  |                                         |               |
|    | HER |                                         |               |
|    | UNI |                                         |               |
|    | TS: |                                         |               |
|    | S   |                                         |               |
|    | pec |                                         |               |
|    | ify |                                         |               |
|    | u   |                                         |               |
|    | nit |                                         |               |
|    | \_  |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_\ |                                         |               |
|    | _\_ |                                         |               |
|    | \_d |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 40 | [   |                                         |               |
| .2 | The |                                         |               |
|    | m   |                                         |               |
|    | axi |                                         |               |
|    | mum |                                         |               |
|    | I   |                                         |               |
|    | ZSM |                                         |               |
|    | ra  |                                         |               |
|    | nge |                                         |               |
|    | of  |                                         |               |
|    | an  |                                         |               |
|    | i   |                                         |               |
|    | ndi |                                         |               |
|    | cat |                                         |               |
|    | ing |                                         |               |
|    | e   |                                         |               |
|    | lem |                                         |               |
|    | ent |                                         |               |
|    | (   |                                         |               |
|    | not |                                         |               |
|    | pe  |                                         |               |
|    | rma |                                         |               |
|    | nen |                                         |               |
|    | tly |                                         |               |
|    | at  |                                         |               |
|    | tac |                                         |               |
|    | hed |                                         |               |
|    | to  |                                         |               |
|    | we  |                                         |               |
|    | igh |                                         |               |
|    | ing |                                         |               |
|    | and |                                         |               |
|    | lo  |                                         |               |
|    | ad- |                                         |               |
|    | rec |                                         |               |
|    | eiv |                                         |               |
|    | ing |                                         |               |
|    | ele |                                         |               |
|    | men |                                         |               |
|    | ts) |                                         |               |
|    | and |                                         |               |
|    | in  |                                         |               |
|    | ten |                                         |               |
|    | ded |                                         |               |
|    | to  |                                         |               |
|    | be  |                                         |               |
|    | c   |                                         |               |
|    | ove |                                         |               |
|    | red |                                         |               |
|    | on  |                                         |               |
|    | a   |                                         |               |
|    | se  |                                         |               |
|    | par |                                         |               |
|    | ate |                                         |               |
|    | C   |                                         |               |
|    | C:] |                                         |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | [4  | [does not exceed 20 % of the scale      | Yes No NA     |
|    | 0.2 | capacity, or]{.underline}               |               |
|    | .1] |                                         |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
|    | [4  | [can be set and sealed (see table of    | Yes No NA     |
|    | 0.2 | sealable parameters) to a maximum of    |               |
|    | .2] | 20 % of the scale capacity]{.underline} |               |
|    | {.u |                                         |               |
|    | nde |                                         |               |
|    | rli |                                         |               |
|    | ne} |                                         |               |
+----+-----+-----------------------------------------+---------------+
| 40 | **  |                                         |               |
| .3 | *Re |                                         |               |
| ~~ | num |                                         |               |
| 2~ | ber |                                         |               |
| ~. | s   |                                         |               |
|    | ubs |                                         |               |
|    | equ |                                         |               |
|    | ent |                                         |               |
|    | p   |                                         |               |
|    | ara |                                         |               |
|    | gra |                                         |               |
|    | phs |                                         |               |
|    | in  |                                         |               |
|    | S   |                                         |               |
|    | ect |                                         |               |
|    | ion |                                         |               |
|    | 41  |                                         |               |
|    | *** |                                         |               |
+----+-----+-----------------------------------------+---------------+

[]{#__RefHeading___Toc58813056 .anchor}**12. Weight Accumulators**

**Source:** 2002 Weighing Sector Agenda Item 31

**Background**: This item was carried over from the 2002 meeting of the
Weighing Sector since the Sector did not have time to review and discuss
the subject. The Sector was asked to review a recommendation from the
Maryland participating laboratory. The following has been copied from
the 2002 Weighing Sector Final Summary.

The following is from the 1997 Weighing Sector final Summary:

**Source:** NTEP Weighing Labs

> **Background:** Publication 14 does not adequately address the new
> features that labs are seeing on scales with weight accumulation
> features.
>
> **Recommendation:** The Sector was asked to review language \[an
> attachment to item 5\] submitted by the NTEP labs for addition to
> Publication 14 under the section on scales with weight accumulation
> features.
>
> **Conclusion:** The Sector agreed to add the proposed procedure and
> criteria in the attachments to Publication 14.

The Maryland participating laboratory developed the following proposed
changes to Publication 14 to incorporate the procedures and criteria
adopted by the Weighing Sector in 1997. The Sector is asked to review
the proposed changes and agree to forward them to the NTEP Committee for
consideration.

**[Number range CHAPTERWeight Accumulation]{.underline}**

[This section is not applicable to automatic bulk weighing systems and
automatic weighing systems. The weight accumulation feature adds and/or
subtracts multiple weighments. Please note that total weight
accumulators may not be acceptable in some jurisdictions and are not
acceptable in all applications. The suitability of this feature is
determined by the enforcement policy of each jurisdiction. Because the
accumulation feature has a significant potential to facilitate fraud if
not properly designed, the following type evaluation criteria must be
met:]{.underline}

[Identify the methods of weight accumulation:]{.underline}

[-Manual Total: The operator must enable the mechanism for each
weighment added to or subtracted from the accumulated
total.]{.underline}

[-Auto Total: Once this mode is enabled, the device will automatically
add each weighment to the accumulated total. The auto-total feature may
not be acceptable in all jurisdictions and is not acceptable in all
applications. The auto-total feature is not acceptable when the loading
or unloading of the device is likely to activate the auto-total
feature.]{.underline}

  ------------------ -- -------------------------------------------- -- -------------------
  [1.]{.underline}      [GROSS and NET weighments cannot be added to    [Yes]{.underline}
                        or subtracted from the same TOTAL               [No]{.underline}
                        accumulator.]{.underline}                       [NA]{.underline}

  [2.]{.underline}      [The device has motion detection capability     [Yes]{.underline}
                        that prevents the device from accumulating      [No]{.underline}
                        weighments before the weight display has        [NA]{.underline}
                        stabilized within specified limits. The         
                        limits for motion detection                     
                        are:]{.underline}                               

                        [(a)  3 scale divisions for axle load,         [Yes]{.underline}
                        railway track, vehicle scales, and hopper       [No]{.underline}
                        scales (other than grain hoppers) with a        [NA]{.underline}
                        capacity exceeding 22 000 kg (50 000 lb);       
                        and]{.underline}                                

                        [(b)  1 scale division for all other           [Yes]{.underline}
                        scales.]{.underline}                            [No]{.underline}
                                                                        [NA]{.underline}
  ------------------ -- -------------------------------------------- -- -------------------

[It is recommended that the indicator simultaneously display the TOTAL
weight and the current weight on the load-receiving element. Devices
equipped with accumulation capability must provide a clear indication
that a weighment has been entered. This indication may be a TOTAL
display mode, a lighted legend, or an annunciator such as \"total
entered.\"]{.underline}

  ------------------ -------------------- ------------------------------------------------------------------------------------------------------------------------ -------------------
  [3.]{.underline}                        [The method used to indicate that a weighment has been entered:]{.underline}                                             

                     [3.1.]{.underline}   [A separate continuous indication of the TOTAL weight display mode.]{.underline}                                         [Yes]{.underline}
                                                                                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

                     [3.2.]{.underline}   [The device has selectable "current weight" and "TOTAL weight " display modes with proper descriptors.]{.underline}      [Yes]{.underline}
                                                                                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

                     [3.3.]{.underline}   [A lighted legend or annunciator of "weight entered" or a similar statement is used to indicate that a weighment has     [Yes]{.underline}
                                          been added to the TOTAL weight.]{.underline}                                                                             [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

                                          [3.3.1. An entry of "zero" should not activate the annunciator or the item count.]{.underline}                           [Yes]{.underline}
                                                                                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

                     [3.4.]{.underline}   [Other:\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_]{.underline}   [Yes]{.underline}
                                                                                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

                                          [3.4.1 The method is acceptable.]{.underline}                                                                            [Yes]{.underline}
                                                                                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

  [4.]{.underline}                        [If units are converted, the weight unit selector switch must convert both the current weight display and the TOTAL      [Yes]{.underline}
                                          weight display.]{.underline}                                                                                             [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

  [5.]{.underline}                        [If the device has a current/total switch, the TOTAL weight display must be inhibited when a load is on the              [Yes]{.underline}
                                          platform.]{.underline}                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

  [6.]{.underline}                        [The device shall indicate the number of items accumulated whenever the TOTAL weight is displayed.]{.underline}          [Yes]{.underline}
                                                                                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

  [7.]{.underline}                        [If the device can simultaneously accumulate transactions for more than one customer, customer identification codes must [Yes]{.underline}
                                          be displayed.]{.underline}                                                                                               [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

  [8.]{.underline}                        [The device must return to gross load zero between each weighment accumulated.]{.underline}                              [Yes]{.underline}
                                                                                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}

  [9.]{.underline}                        [The TOTAL key does not act as a repeat key.]{.underline}                                                                [Yes]{.underline}
                                                                                                                                                                   [No]{.underline}
                                                                                                                                                                   [NA]{.underline}
  ------------------ -------------------- ------------------------------------------------------------------------------------------------------------------------ -------------------

**Discussion/Conclusion:** There were no major discussions on this item
or significant updates to the proposed language. The Sector recommends
that the [underlined]{.underline} language in the above proposal be
incorporated into NCWM Publication 14, Weighing Devices Technical
Policy, Checklist, and Test Procedures.

[]{#__RefHeading___Toc58813057 .anchor}**13: Listing of Weighing Device
Types**

**Source:** 2002 Weighing Sector Agenda Item 4

**Background:** At the 2001 NTEP Participating Laboratories meeting, the
participating labs and the NIST technical advisor were asked to create
an outline of device types based upon accuracy class, special use (e.g.,
vehicle, livestock, etc.), and physical design. Refer to Attachment to
Item 4 for a complete draft copy of the outline.

Work has been done in this area for several years, however, there has
never been true closure on this item. There appear to be different
alternatives and philosophies related to this topic. This item needs to
be completed for various reasons. The Measuring Sector has a simpler set
of devices t to categorize than does the Weighing Sector. The Grain
Moisture Meter and Near Infrared Grain Analyzer Sectors are becoming
involved in similar discussions particularly with respect to grain
constituents. Additionally, the impending administrative review of an
NTEP CC in the proposed Conformity Assessment program starting within
the next couple of years will require information on device type to be
complete and consistently applied.

During the 2003 NTEP Participating Laboratory meeting, the labs
discussed an outline format. The labs also reviewed a draft CC template
with five drop-down menus that would be used to select the device type
in the "For" box on the CC. The labs did not favor the use of the
outline format since it did not reduce the number of device types.
(Note: The labs did not address the issue of application vs. design
device types because there has been no consensus of the Sector or
direction from the NCWM membership and regulators.) Therefore, the labs
looked at the list of device types listed in the Section 2 (Weighing
Devices) of Handbook 44, the device types listed on the CCs, and the
database search list.

The labs believed the list of device types could be shortened to a
manageable level that could be used in the draft CC template and CC
search database through either the search selections or possibly a
keyword search. The DRAFT template offered a selection from five fields:

-   Field 1 - Main Type (vehicle, bench, etc.)

-   Field 2 - System, Instrument (complete device), controller, or
    element (separable) (load cell technology in the case of load cell
    CCs)

-   Field 3 - Main feature or application (load cell design for load
    cell CCs)

-   Field 4 - Technology

-   Field 5 - Accuracy Class

The labs significantly shortened the list and identified device types
that would be more appropriately listed as a "feature" in the "Standard
Features and Options" (SFO) box in the CC. The Maryland and Ohio
participating labs volunteered to continue working on the template using
the device types from the shortened list as many of the remaining device
types can be considered as design, technology, and features or options
that could be located in the SFO box.

Additionally, Steve Patoray indicated that there are approximately 3000
existing CCs that would need to be reclassified according to any future
list of device types to facilitate searching the CC database. It was
suggested that the CCs be divided among the labs and the lab personnel
could code or classify the CCs according to the list of \"main\" device
types. Inactive CCs would not have to be republished but would be
recoded or reclassified for the NTEP searchable database. "Active" CCs
would have the CC updated to the draft CC template using the list of
selections in the different fields.

The following is the list of Handbook 44, CC weighing, and database
search device types. Strikeout text indicates device types that the labs
believe are not needed for the CC device type and the NCWM searchable
database.

Automatic Weighing Systems

Automatic Bulk Weighing

System

Controller

~~Analog automatic indicating~~

~~Automatic indicating scale~~

~~Beam scale~~

Belt conveyor scale system

~~Bench/counter scale~~

Checkweighing scale

~~Coal mine scale 2.20~~

Computing scale

~~Computing type~~

~~Conventional scale~~

Counter scale

Crane scale

~~Dairy product test scale~~

Indicating element

Electronic (feature)

Mechanical (feature)

~~Grain hopper scale~~

Grain test scale

Hanging scale

Hopper scale

Electromechanical (feature)

Automatic hopper scale hopper scale with controlling electronics
(feature)

~~Hopper scale construction material~~

Weighbeams/Mechanical (feature)

~~Jewelers scale~~

Livestock scale

Animal scale

Load cell

Analog (feature)

Digital (feature)

Hydraulic (feature)

Monorail

Static (feature)

Dynamic (feature)

Platform scale (other than bench/counter, vehicle, and etc.)

~~Multiple range~~ (feature)

~~Multi-interval scale~~(feature)

~~Multi-revolution scale~~

~~Parcel post scale~~

Prescription scale

Point-of-Sale ~~Terminal/~~System

Electronic cash registers

Self- checkout (feature?)

Point-of--Sale Scale

Scanner Scale (feature?)

Portable axle load weighers

Wheel load weighers

Prepackaging scale

Railway track

Coupled in motion railroad weighing system

Uncoupled in motion

~~Recording scale~~

~~Retail food scales~~

~~Single indicating element multiple indications~~

~~Single indicating/recording element~~

Vehicle onboard weighing systems

Vehicle scale

Axle load scale

Weighbeams

Weight classifier

Postal scale (feature?)

**[OTHERS]{.underline}**

Customer operated bulk weighing systems

Equal arm scale

Berry Basket

The Sector was asked to review the approach suggested by the
participating laboratories and provide support, comments, and/or
suggestions to improve this approach. The Sector was also asked to
review the two examples of the CC template fields and selection lists
developed by Steve Patoray and Steve Cook and forward comments to them
on the preferable CC template approach along with additions or deletions
of the template field selections.

+----------------------+---------+---+--------+--------+---------------+
| **Field 1 (Main      | **Field | * |        | *      | **SFO**       |
| Type)**              | 2**     | * |        | *Field |               |
|                      |         | F |        | 4**    |               |
|                      |         | i |        |        |               |
|                      |         | e |        |        |               |
|                      |         | l |        |        |               |
|                      |         | d |        |        |               |
|                      |         | 3 |        |        |               |
|                      |         | * |        |        |               |
|                      |         | * |        |        |               |
+======================+=========+===+========+========+===============+
| Animal\*             | Scale   | G |        | Mech   | Automatic     |
|                      |         | e |        | anical | hopper scale  |
|                      |         | n |        |        | hopper scale  |
|                      |         | e |        |        | with          |
|                      |         | r |        |        | controlling   |
|                      |         | a |        |        | electronics   |
|                      |         | l |        |        |               |
|                      |         | A |        |        |               |
|                      |         | p |        |        |               |
|                      |         | p |        |        |               |
|                      |         | l |        |        |               |
|                      |         | i |        |        |               |
|                      |         | c |        |        |               |
|                      |         | a |        |        |               |
|                      |         | t |        |        |               |
|                      |         | i |        |        |               |
|                      |         | o |        |        |               |
|                      |         | n |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Automatic Bulk       | Element | C |        | Elec   | Axle load     |
| Weighing             |         | o |        | tronic | weighing\*\*  |
|                      |         | u |        |        |               |
|                      |         | p |        |        |               |
|                      |         | l |        |        |               |
|                      |         | e |        |        |               |
|                      |         | d |        |        |               |
|                      |         | i |        |        |               |
|                      |         | n |        |        |               |
|                      |         | m |        |        |               |
|                      |         | o |        |        |               |
|                      |         | t |        |        |               |
|                      |         | i |        |        |               |
|                      |         | o |        |        |               |
|                      |         | n |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Automatic Weighing   | System  | U |        | Elect  | Livestock     |
|                      |         | n |        | romech | weighing\*\*  |
|                      |         | c |        | anical |               |
|                      |         | o |        |        |               |
|                      |         | u |        |        |               |
|                      |         | p |        |        |               |
|                      |         | l |        |        |               |
|                      |         | e |        |        |               |
|                      |         | d |        |        |               |
|                      |         | i |        |        |               |
|                      |         | n |        |        |               |
|                      |         | m |        |        |               |
|                      |         | o |        |        |               |
|                      |         | t |        |        |               |
|                      |         | i |        |        |               |
|                      |         | o |        |        |               |
|                      |         | n |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Belt conveyor scale  | Load-re | A |        |        | Mul           |
| system               | ceiving | u |        |        | ti-interval\* |
|                      | element | t |        |        | \*            |
|                      |         | o |        |        |               |
|                      |         | m |        |        |               |
|                      |         | a |        |        |               |
|                      |         | t |        |        |               |
|                      |         | i |        |        |               |
|                      |         | c |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Checkweighing \*     | Con     | D |        | Single | Multiple      |
|                      | troller | y |        | (LC    | range\* \*    |
|                      |         | n |        | CC)    |               |
|                      |         | a |        |        |               |
|                      |         | m |        |        |               |
|                      |         | i |        |        |               |
|                      |         | c |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Computing            | Scanner | S |        | Mu     | Postal        |
|                      | Scale   | t |        | ltiple | scale\*\*     |
|                      | \*      | a |        | (LC    |               |
|                      |         | t |        | CC)    |               |
|                      |         | i |        |        |               |
|                      |         | c |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Counter/Bench        |         | G |        |        | Scanner       |
|                      |         | r |        |        | Scale\*\*     |
|                      |         | a |        |        |               |
|                      |         | i |        |        |               |
|                      |         | n |        |        |               |
|                      |         | \ |        |        |               |
|                      |         | * |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Crane                | Analog  | W |        |        | Self-         |
|                      | (LC CC) | e |        |        | checkout      |
|                      |         | i |        |        |               |
|                      |         | g |        |        |               |
|                      |         | h |        |        |               |
|                      |         | t |        |        |               |
|                      |         | c |        |        |               |
|                      |         | l |        |        |               |
|                      |         | a |        |        |               |
|                      |         | s |        |        |               |
|                      |         | s |        |        |               |
|                      |         | i |        |        |               |
|                      |         | f |        |        |               |
|                      |         | i |        |        |               |
|                      |         | e |        |        |               |
|                      |         | r |        |        |               |
|                      |         | \ |        |        |               |
|                      |         | * |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Grain test           | Digital | P |        |        | Single animal |
|                      | (LC CC) | o |        |        | weighing\*\*  |
|                      |         | s |        |        |               |
|                      |         | t |        |        |               |
|                      |         | a |        |        |               |
|                      |         | l |        |        |               |
|                      |         | s |        |        |               |
|                      |         | c |        |        |               |
|                      |         | a |        |        |               |
|                      |         | l |        |        |               |
|                      |         | e |        |        |               |
|                      |         | \ |        |        |               |
|                      |         | * |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Hanging              | Hy      | M |        |        | W             |
|                      | draulic | u |        |        | eighbeams\*\* |
|                      | (LC CC) | l |        |        |               |
|                      |         | t |        |        |               |
|                      |         | i |        |        |               |
|                      |         | p |        |        |               |
|                      |         | l |        |        |               |
|                      |         | e |        |        |               |
|                      |         | r |        |        |               |
|                      |         | a |        |        |               |
|                      |         | n |        |        |               |
|                      |         | g |        |        |               |
|                      |         | e |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Hopper               |         | M |        |        | Weight        |
|                      |         | u |        |        | c             |
|                      |         | l |        |        | lassifier\*\* |
|                      |         | t |        |        |               |
|                      |         | i |        |        |               |
|                      |         | - |        |        |               |
|                      |         | i |        |        |               |
|                      |         | n |        |        |               |
|                      |         | t |        |        |               |
|                      |         | e |        |        |               |
|                      |         | r |        |        |               |
|                      |         | v |        |        |               |
|                      |         | a |        |        |               |
|                      |         | l |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Indicator            |         |   |        |        | Pre           |
|                      |         |   |        |        | Packaging\*\* |
+----------------------+---------+---+--------+--------+---------------+
| Livestock\*          |         | S |        |        |               |
|                      |         | - |        |        |               |
|                      |         | T |        |        |               |
|                      |         | y |        |        |               |
|                      |         | p |        |        |               |
|                      |         | e |        |        |               |
|                      |         | ( |        |        |               |
|                      |         | L |        |        |               |
|                      |         | C |        |        |               |
|                      |         | C |        |        |               |
|                      |         | C |        |        |               |
|                      |         | ) |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Load cell            |         | S |        |        |               |
|                      |         | h |        |        |               |
|                      |         | e |        |        |               |
|                      |         | a |        |        |               |
|                      |         | r |        |        |               |
|                      |         | B |        |        |               |
|                      |         | e |        |        |               |
|                      |         | a |        |        |               |
|                      |         | m |        |        |               |
|                      |         | ( |        |        |               |
|                      |         | L |        |        |               |
|                      |         | C |        |        |               |
|                      |         | C |        |        |               |
|                      |         | C |        |        |               |
|                      |         | ) |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Monorail             |         | D |        |        |               |
|                      |         | o |        |        |               |
|                      |         | u |        |        |               |
|                      |         | b |        |        |               |
|                      |         | l |        |        |               |
|                      |         | e |        |        |               |
|                      |         | E |        |        |               |
|                      |         | n |        |        |               |
|                      |         | d |        |        |               |
|                      |         | e |        |        |               |
|                      |         | d |        |        |               |
|                      |         | ( |        |        |               |
|                      |         | L |        |        |               |
|                      |         | C |        |        |               |
|                      |         | C |        |        |               |
|                      |         | C |        |        |               |
|                      |         | ) |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Platform scale       |         | C |        |        |               |
| (other than          |         | a |        |        |               |
| bench/counter,       |         | n |        |        |               |
| vehicle, and etc.)   |         | i |        |        |               |
|                      |         | s |        |        |               |
|                      |         | t |        |        |               |
|                      |         | e |        |        |               |
|                      |         | r |        |        |               |
|                      |         | ( |        |        |               |
|                      |         | L |        |        |               |
|                      |         | C |        |        |               |
|                      |         | C |        |        |               |
|                      |         | C |        |        |               |
|                      |         | ) |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Point-of--Sale\*     |         | ( |        |        |               |
|                      |         | O |        |        |               |
|                      |         | t |        |        |               |
|                      |         | h |        |        |               |
|                      |         | e |        |        |               |
|                      |         | r |        |        |               |
|                      |         | l |        |        |               |
|                      |         | o |        |        |               |
|                      |         | a |        |        |               |
|                      |         | d |        |        |               |
|                      |         | c |        |        |               |
|                      |         | e |        |        |               |
|                      |         | l |        |        |               |
|                      |         | l |        |        |               |
|                      |         | d |        |        |               |
|                      |         | e |        |        |               |
|                      |         | s |        |        |               |
|                      |         | i |        |        |               |
|                      |         | g |        |        |               |
|                      |         | n |        |        |               |
|                      |         | s |        |        |               |
|                      |         | ) |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Portable axle load   |         |   |        |        |               |
| \*                   |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Prepackaging \*      |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Prescription \*      |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Railway \*           |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Vehicle \*           |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Vehicle onboard      |         |   |        |        |               |
| weighing \*          |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Wheel load           |         |   |        |        |               |
| weighers\*           |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Others-Berry Basket  |         |   |        |        |               |
|                      |         |   |        |        |               |
| Customer operated    |         |   |        |        |               |
| bulk weighing        |         |   |        |        |               |
| systems              |         |   |        |        |               |
|                      |         |   |        |        |               |
| Equal arm scale      |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+
| Field 1 = Main Type  |         |   | Field  |        |               |
| (vehicle, bench,     |         |   | 4 =    |        |               |
| etc.)                |         |   | Tech   |        |               |
|                      |         |   | nology |        |               |
| Field 2 = System,    |         |   | (see   |        |               |
| Scale, or Instrument |         |   | Field  |        |               |
| (complete device),   |         |   | 2 for  |        |               |
| or separable;        |         |   | load   |        |               |
| controller or        |         |   | cells) |        |               |
| element (or load     |         |   |        |        |               |
| cell technology in   |         |   | Field  |        |               |
| the case of load     |         |   | 5 =    |        |               |
| cell CCs)            |         |   | Ac     |        |               |
|                      |         |   | curacy |        |               |
| Field 3 = Main       |         |   | Class  |        |               |
| feature or           |         |   |        |        |               |
| application (or load |         |   | SFO =  |        |               |
| cell design for load |         |   | St     |        |               |
| cell CCs)            |         |   | andard |        |               |
|                      |         |   | Fe     |        |               |
|                      |         |   | atures |        |               |
|                      |         |   | and    |        |               |
|                      |         |   | Option |        |               |
+----------------------+---------+---+--------+--------+---------------+
| \* If a Handbook 44  |         |   |        |        |               |
| ***application*\_-** |         |   |        |        |               |
| based type device is |         |   |        |        |               |
| selected, it can     |         |   |        |        |               |
| only be used for     |         |   |        |        |               |
| that application     |         |   |        |        |               |
| unless additional    |         |   |        |        |               |
| applications are     |         |   |        |        |               |
| listed as options in |         |   |        |        |               |
| the SFO              |         |   |        |        |               |
|                      |         |   |        |        |               |
| \*\* This type of    |         |   |        |        |               |
| scale is to be       |         |   |        |        |               |
| listed as an option  |         |   |        |        |               |
| if either the        |         |   |        |        |               |
| technology is an     |         |   |        |        |               |
| optional feature of  |         |   |        |        |               |
| a family or the      |         |   |        |        |               |
| scale is part of a   |         |   |        |        |               |
| family that can be   |         |   |        |        |               |
| used in for two or   |         |   |        |        |               |
| more Handbook 44     |         |   |        |        |               |
| "Application-Based   |         |   |        |        |               |
| Device Types." For   |         |   |        |        |               |
| example, vehicles    |         |   |        |        |               |
| scales that have     |         |   |        |        |               |
| racks and gates in   |         |   |        |        |               |
| order to weigh       |         |   |        |        |               |
| livestock or single  |         |   |        |        |               |
| animals, a short     |         |   |        |        |               |
| vehicle scale that   |         |   |        |        |               |
| can be used to weigh |         |   |        |        |               |
| axles, railroad      |         |   |        |        |               |
| scales that can      |         |   |        |        |               |
| weigh highway        |         |   |        |        |               |
| vehicles, and etc.,  |         |   |        |        |               |
| must have the        |         |   |        |        |               |
| capability listed as |         |   |        |        |               |
| an option in the SFO |         |   |        |        |               |
| box.                 |         |   |        |        |               |
+----------------------+---------+---+--------+--------+---------------+

+-----------------+-----------------+-----------------+-----------------+
| An Alternative  |                 |                 |                 |
| Approach by     |                 |                 |                 |
| SAP.            |                 |                 |                 |
+=================+=================+=================+=================+
| **Field 1 (Main | **Field 2**     | **Field 3**     | **SF            |
| Type)**         |                 |                 | O/Application** |
+-----------------+-----------------+-----------------+-----------------+
| Automatic Bulk  | Scale           | Electronic      | Animal          |
| Weighing        |                 |                 |                 |
+-----------------+-----------------+-----------------+-----------------+
| Automatic       | Element         | El              | Axle load       |
| Weighing        |                 | ectromechanical | weighing        |
+-----------------+-----------------+-----------------+-----------------+
| Belt conveyor   | System          | Mechanical      | Checkweighing   |
| Scale           |                 |                 |                 |
+-----------------+-----------------+-----------------+-----------------+
| Computing       |                 |                 | Counter/Bench   |
+-----------------+-----------------+-----------------+-----------------+
| Crane           | Analog (LC CC)  | Coupled in      | Grain           |
|                 |                 | motion          |                 |
+-----------------+-----------------+-----------------+-----------------+
| Grain test      | Digital (LC CC) | Uncoupled in    | Livestock       |
|                 |                 | motion          |                 |
+-----------------+-----------------+-----------------+-----------------+
| Hanging         | Hydraulic (LC   |                 | Platform        |
|                 | CC)             |                 |                 |
+-----------------+-----------------+-----------------+-----------------+
| Hopper          |                 | Controller      | Portable        |
+-----------------+-----------------+-----------------+-----------------+
| Indicating      |                 |                 | Portable axle   |
|                 |                 |                 | load            |
+-----------------+-----------------+-----------------+-----------------+
| Load cell       |                 | Dynamic         | Postal scale    |
+-----------------+-----------------+-----------------+-----------------+
| Monorail        |                 | Static          | Pre Packaging   |
+-----------------+-----------------+-----------------+-----------------+
| Non-Computing   |                 |                 | Prescription    |
+-----------------+-----------------+-----------------+-----------------+
| Point-of--Sale  |                 | Multiple range  | Railway         |
+-----------------+-----------------+-----------------+-----------------+
| Vehicle onboard |                 | Multi-interval  | Scanner Scale   |
| weighing        |                 |                 |                 |
+-----------------+-----------------+-----------------+-----------------+
| Weighing/Load   |                 |                 | Self- checkout  |
| Receiving       |                 |                 |                 |
+-----------------+-----------------+-----------------+-----------------+
|                 |                 | Compression (LC | Vehicle         |
|                 |                 | CC)             |                 |
+-----------------+-----------------+-----------------+-----------------+
|                 |                 | Tension- Type   | Weighbeams      |
|                 |                 | (LC CC)         |                 |
+-----------------+-----------------+-----------------+-----------------+
|                 |                 | Shear Beam (LC  | Weight          |
|                 |                 | CC)             | classifier      |
+-----------------+-----------------+-----------------+-----------------+
|                 |                 | Bending Beam    | Wheel load      |
|                 |                 | (LC CC)         | weighers        |
+-----------------+-----------------+-----------------+-----------------+
|                 |                 | Double Ended    |                 |
|                 |                 | (LC CC)         |                 |
+-----------------+-----------------+-----------------+-----------------+
| Others- Berry   |                 |                 |                 |
| Basket          |                 |                 |                 |
|                 |                 |                 |                 |
| > Equal arm     |                 |                 |                 |
| > scale         |                 |                 |                 |
+-----------------+-----------------+-----------------+-----------------+

**Discussion/Conclusion:** The Sector supports the concept of listing a
limited number of device types on Certificate of Conformance template
and preferred the list of device types in the table suggested by the
NTEP director since it has fewer device types. Additionally, the Sector
encourages the NTEP Committee and the NCWM Board of Directors to
incorporate a "keyword" search engine in the Certificate of Conformance
database.

[]{#__RefHeading___Toc58813058 .anchor}**New Items**

14. []{#__RefHeading___Toc58813059 .anchor}**Recommended Changes to
    Publication 14 based on Actions at the 2003 NCWM Annual Meeting**

**Background: ** The NTEP technical advisor has typically attempted to
provide the Sector with specific recommendations for incorporating test
procedures and checklist language based upon actions of the previous
Annual Meeting of the NCWM.  Due to the close proximity of the Annual
Meeting and the Sector Meeting, there has not been sufficient time for
the NIST technical advisor to develop and vet recommended language for
Publication 14 for all items adopted by the NCWM. The Sector was asked
to discuss each item and provide general input on the technical aspects
of the issues. 

**Discussion/Conclusion:** The Sector chairman discussed alternatives to
developing proposed language for recommended changes to Publication 14
during the Sector meeting.

The Sector considered and agreed with the following approaches for
developing specific proposed language:

1.  The NTEP director, technical advisor, and/or Sector chairman might
    develop changes to Publication 14 jointly. 

2.  Additionally, the Sector chairman can appoint small work groups to
    work with the technical advisor to develop recommended language. 

For either alternative, the Sector would then be balloted for approval
of the proposed language prior to the NCWM Interim Meeting.

[]{#__RefHeading___Toc58813060 .anchor}**14a. G-S.1. Identification and
G-S.1.1. Not-Built-for-Purpose Devices, Software-Based; Software-Based
Devices**

**Background:** During its 2003 Annual Meeting, the NCWM agreed to the
following additional language for the 2004 Edition of NIST Handbook 44:

> **G-S.1. Identification. - All equipment, except weights and separate
> parts necessary to the measurement process, but not having any
> metrological effect, shall be clearly and permanently marked for the
> purposes of identification with the following information:**
>
> **(a) the name, initials, or trademark of the manufacturer or
> distributor;**
>
> **(b) a model designation that positively identifies the pattern or
> design of the device;**
>
> **(c) *the model designation shall be prefaced by the term \"Model,\"
> \"Type,\" or \"Pattern.\" These terms may be followed by the term
> \"Number\" or an abbreviation of that word. The abbreviation for the
> word \"Number\" shall, as a minimum, begin with the letter \"N\"
> (e.g., No or No.). The abbreviation for the word "Model" shall be
> "Mod" or "Mod."***
>
> ***\[Nonretroactive January 1, 2003\]***
>
> **(Added 2000) (Amended 2001)**
>
> ***\[Note: Prefix lettering may be initial capitals, all capitals or
> all lower case.\]***
>
> ***(d) except for equipment with no moving or electronic component
> parts [and not-built-for-purpose, software-based,]{.underline} a
> nonrepetitive serial number;***
>
> ***\[Nonretroactive as of January 1, 1968\]***

(f) ***[for not-built-for-purpose, software-based devices the current
    software designation;]{.underline}***

> ***(f) the serial number shall be prefaced by words, an abbreviation,
> or a symbol that clearly identifies the number as the required serial
> number; and***
>
> ***\[Nonretroactive as of January 1, 1986\]***
>
> ***(g) the serial number shall be prefaced by the words \"Serial
> Number\" or an abbreviation of that term. Abbreviations for the word
> \"Serial\" shall, as a minimum, begin with the letter \"S\", and
> abbreviations for the word \"Number\" shall, as a minimum, begin with
> the letter \"N\" (e.g., S/N, SN, Ser. No, and S No.).***
>
> ***\[Nonretroactive as of January 1, 2001\]***
>
> ***(h) For devices that have an NTEP Certificate of Conformance (CC)
> Number or a corresponding CC addendum number, the NTEP CC shall be
> prefaced by the terms \"NTEP CC\", \"CC\", or \"Approval\". These
> terms may be followed by the term \"Number\" or an abbreviation of
> that word. The abbreviation for the word \"Number\" shall, as a
> minimum, begin with the letter \"N\" (e.g., No or No.).***
>
> ***\[Nonretroactive as of January 1, 2003\]***
>
> **The required information shall be so located that it is readily
> observable without the necessity of the disassembly of a part
> requiring the use of any means separate from the device.**
>
> **(Amended 1985, 1991, 1999 and 2000)**
>
> ***[G-S.1.1. Not-Built--For--Purpose Devices, Software-Based. - For
> not-built--for--purpose, software-based devices, the following shall
> apply:]{.underline}***
>
> *[(a) the manufacturer or distributor and the model designation shall
> be continuously displayed or marked on the device (see note below),
> or]{.underline}*
>
> *[(b) the Certificate of Conformance (CC) number shall be continuously
> displayed or marked on the device (see note below), or]{.underline}*
>
> *[(c) all required information in G-S.1. Identification. (a), (b),
> (c), (e), and (h) shall be continuously displayed. Alternatively, a
> clearly identified view-only System Identification, G-S.1.
> Identification, or Weights and Measures Identification shall be
> accessible through the "Help" menu. Required information includes that
> information necessary to identify the software in the device is the
> same type that was evaluated.]{.underline}*
>
> *[Note: Clear instructions for accessing the remaining required G-S.1.
> information shall be listed on the CC. Required information includes
> information necessary to identify the software in the device is the
> same type that was evaluated.]{.underline}*
>
> *[\[Nonretroactive as of January 1, 2004\]]{.underline}*

**Discussion:** The Sector reviewed the new language for Handbook 44 and
Publication 14 DES Section 3. Marking -- Software. The Sector discussed
the possibility of a small work group to amend Publication 14, Section 3
and recommended that the language be kept brief and straightforward. The
NTEP director stated that all sections of Publication 14 are affected by
the new language in Handbook 44 and suggested the work group limit the
review to digital electronic scales for completion by November 2003. The
NIST technical advisor to the Weighing Sector was asked to incorporate
the language, as appropriate, into the checklists for the following
devices:

ABWS Section 17. Marking -- General, BCS Section 8 Marking Requirements,

ECRS Section 5. Identification,

AWS Section 1. General Code Requirements, Identification, and

MDMD Section 1. Marking -- Complete Devices (and main elements).

**Conclusion:** The Ohio and Maryland participating laboratories and Bob
Hamilton (Mettler Toledo) volunteered to develop language that can be
recommended for incorporation into Publication 14. The NIST technical
advisor will ballot the Sector members for their approval.

[]{#__RefHeading___Toc58813061 .anchor}**14b. Counting Feature on Class
I or II Scales Used in Prescription-Filling Applications**

**Background:** During its 2003 Annual Meeting, the NCWM agreed to the
following additional language for the 2004 Edition of NIST Handbook 44:

> ***[S.1.2.3. Prescription Scale with a Counting Feature. - A Class I
> or Class II prescription scale with an operational counting feature
> shall not calculate a piece weight or total count unless the following
> conditions are met:]{.underline}***
>
> ***[(a) minimum individual piece weight is greater than or equal to 3
> e,]{.underline}***

(b) ***[minimum sample size is greater than or equal 10
    pieces]{.underline}***

> ***[S.2.5.3. Class I and Class II Prescription Scales with a Counting
> Feature. -- A prescription scale, Class I or Class II, shall indicate
> to the operator when the piece weight computation is complete by a
> stable display of the quantity placed on the load-receiving
> element.]{.underline}***
>
> ***[S.6.6. Counting Feature Minimum Piece Weight. -- A Class I or
> Class II prescription scale with an operational counting feature shall
> be marked with the minimum piece weight used to establish an
> individual piece count.]{.underline}***
>
> **[Table S.6.3.b. Note 13: *A scale designed for a special application
> rather than general use shall be conspicuously marked with suitable
> words visible to the operator and customer restricting its use to that
> application, e.g., postal scale, prepack scale, weight classifier,
> etc.\* When a scale is installed with an operational counting feature,
> the scale shall be marked on both the operator and customer sides with
> the statement, \"The counting feature is not legal for trade,\" except
> when a prescription scale complies with paragraphs S.1.2.3., S.2.5.3.,
> and S.6.6.*]{.underline}**

**Discussion:** The Sector reviewed the language adopted by the 88^th^
NCWM at their annual meeting and discussed a draft checklist developed
by Brian Christopher (McKesson) that was distributed to the Sector. The
Sector discussed the need to verify that minimum piece weight and piece
count limits required by the new language in Handbook 44 are effective.
Additionally, NTEP tests should be conducted with counts and load that
are less than the minimums in new paragraph S.1.2.3. that verify the
scale is prevented from displaying a total piece count (e.g., 29 e
and/or 9 pieces for samples to determine piece weights). There was also
a discussion that the scale cannot be recalibrated while evaluating the
counting feature. The manufacturers explained that it is possible to
have inaccurate weight measurements and still have correct count
indications. Additionally, the recommended checklist should include
verification of new marking requirements.

**Conclusion:** The Sector recommends that the Publication 14 evaluation
checklist submitted by Brian Christopher be further developed with the
assistance of the participating laboratories, the NTEP director, and the
NIST technical advisor. Since applicants are waiting for the new
requirements in Handbook 44 to become effective, the Sector recommends
that the checklist be used on an ***ad hoc*** basis until the procedure
can be fully evaluated and accepted by the Sector.

[]{#__RefHeading___Toc58813062 .anchor}**14c. Section and Shift Test
Procedures for Livestock Scales.**

**Background:** During its 2003 Annual Meeting, the NCWM agreed to the
following additional language for the 2004 Edition of NIST Handbook 44:

**N.1.3.4. Vehicle Scale, Axle-Load Scales, and Livestock Scales. -**

> **[N.1.3.4.1. Vehicle Scales, Axle-Load Scales, and Combination
> Vehicle/Livestock Scales. -]{.underline}**
>
> [(a) Minimum Shift Test. At least one shift test shall be conducted
> with a minimum test load of 12.5 % of scale capacity and may be
> performed anywhere on the load‑receiving element using the prescribed
> test patterns and maximum test loads specified below. (Combination
> Vehicle/Livestock Scales shall also be tested consistent with
> N.1.3.4.2.)]{.underline}
>
> \(b\) Prescribed Test Pattern and Loading for Vehicle Scales,
> Axle-Load Scales, [and Combination Vehicle/Livestock
> Scales.]{.underline} - The normal prescribed test pattern shall be an
> area of 1.2 m (4 ft) in length and 3.0 m (10 ft) in width or the width
> of the scale platform, whichever is less. Multiple test patterns may
> be utilized when loaded in accordance with Paragraph[s, (c), (d), or
> (e) as applicable]{.underline}.
>
> \(c\) Loading Precautions for Vehicle Scales, Axle-Load Scales, and
> Combination Vehicle/Livestock Scales. - When loading the scale for
> testing, one side of the test pattern shall be loaded to no more than
> half the concentrated load capacity or test load before loading the
> other side. The area covered by the test load may be less than 1.2 m
> (4 ft) x [3.m (10 ft)]{.underline} or the width of the scale
> [platform, whichever is less]{.underline}; for test patterns less than
> 1.2 m (4 ft) in length, the maximum loading shall meet the formula:
> \[(wheel base of test cart or length of test load divided by 48 in) x
> 0.9 x CLC\]. The maximum test load applied to each test pattern shall
> not exceed the concentrated load capacity of the scale. When the test
> pattern exceeds 1.2 m (4 ft), the maximum test load applied shall not
> exceed the concentrated load capacity times the largest "r" factor in
> Table UR.3.2.1. for the length of the area covered by the test load.
> For weighing elements installed prior to January 1, 1989, the rated
> section capacity may be substituted for concentrated load capacity to
> determine maximum loading. An example of a possible test pattern is
> shown [above]{.underline}.

[**N.1.3.4.2. Prescribed Test Pattern and Test Loads for Livestock
Scales with more than Two Sections and Combination Vehicle/Livestock
Scales.** A minimum test load of 5000 kg (10 000 lb) or one-half f the
rated section capacity, whichever is less, shall be placed, as nearly as
possible, successively over each main load support as shown in the
diagram below. For livestock scales manufactured between January 1,
1989, and January 1, 2003, the required loading shall be no greater than
one-half CLC. (Two-section livestock scales shall be tested consistent
with N.1.3.8.)]{.underline}

> **N.1.3.8.  All Other Scales except Crane Scales, Hanging Scales
> Hopper Scales, Wheel‑Load Weighers, and Portable Axle‑Load Weighers.**
> ‑ A shift test shall be conducted [using the following prescribed test
> loads and test patterns. For livestock scales the shift test load
> shall not exceed one-half the rated section capacity.]{.underline}
>
> [(a) A shift test load shall be conducted using a one-quarter nominal
> capacity test load centered as nearly as possible successively over
> each main load support as shown in the diagram below, or]{.underline}
>
> [(b) A shift test load shall be conducted using a one-half nominal
> capacity test load centered as nearly as possible successively at the
> center of each quarter of the load-receiving element as shown in the
> diagram below.]{.underline}

**Table S.6.3.b. Note 22. *- Combination vehicle/livestock scales must
be marked with both the CLC for vehicle weighing and the section
capacity for livestock weighing. All other requirements relative to
these markings will apply. [Note: The marked section capacity for
livestock weighing may be less than the marked CLC for vehicle
weighing.]{.underline}***

**Discussion/Conclusion:** The Sector reviewed the language adopted by
the 88^th^ NCWM at their Annual Meeting and Publication 14 Section DES
64. The Sector reviewed and recommended the following proposal submitted
by Don Onwiler (NE) to amend Publication 14.

64.1.2. Performance Tests for Livestock Scales with More than 2
Sections:

> At least two complete sets of shift tests shall be conducted over each
> ~~section~~ [main load support]{.underline}. This is to determine the
> repeatability of the scale. ~~Each set must include determination of
> error~~ [Record increasing/decreasing load indications as you add
> weights to or remove weights from the platform]{.underline} at a
> minimum of five intervals of test loads up to[, but not
> exceeding,]{.underline} ~~90~~ [50]{.underline} % of the section
> capacity repeated over each ~~section~~ [main load
> support]{.underline}. For the first set, perform this test on each
> ~~section~~ [main load support]{.underline}, unloading the weights and
> checking zero balance before going on to the next ~~section~~ [main
> load support]{.underline}. For the second set, complete the increasing
> load build-up on one ~~section~~ [main load support]{.underline} and
> move the weights to the next ~~section~~ [main load
> support]{.underline} without unloading the scale. [If a scale consists
> of modules connected together to comprise the weighbridge, conduct
> shift tests by placing the load to the left, right and center of the
> connection between the modules.]{.underline} Take several readings as
> the weights are being removed. When all the weights have been removed,
> record the return to zero. The scale must return to zero within
> one-half of a scale division. ~~When analyzing the return to zero,
> consider the length of time the load was on the scale and for possible
> temperature changes that may have occurred during the test.~~
> ~~Determine scale errors at more points if desired. Avoid decreasing
> load tests when testing a section.~~ Next, conduct an increasing load
> test to the scale nominal capacity ~~or at least to the used
> capacity~~ by distributing the test load over the platform in at least
> five intervals and record the error for each interval. Be careful not
> to exceed the SECTION CAPACITY of a section when loading the weights
> and distributing loads across the section. Record decreasing load
> indications as you remove weights from the platform in at least five
> intervals. [The scale must return to zero within one-half of a scale
> division.]{.underline}
>
> ~~Conduct decreasing load tests after the sections have been tested to
> their maximum load and the weights are from the scale.~~
>
> ***NOTE:** Decreasing load tests only apply to automatic indicating
> devices.*

~~64.1.3. At least one complete set of shift tests to at least 90 % of
the section capacity shall be conducted at mid span between sections.~~

~~64.1.4. If a scale consists of modules that are connected together to
comprise the weighbridge, conduct shift tests by placing the load so
that it straddles the connection between the modules. Later, conduct at
least one shift test on the scale with the test load placed first on one
side of the connection line of the module, then on the other side of the
connection line.~~

64.1.~~5~~[3]{.underline}. The results of shift tests must agree within
the absolute value of the applicable maintenance tolerances and must be
within acceptance tolerances.

[]{#__RefHeading___Toc58813063 .anchor}**14d. Power Supply, Voltage and
Frequency**

**Background:** During its 2003 Annual Meeting, the NCWM agreed to the
following amended language for the 2004 Edition of NIST Handbook 44:

> T.N.8.3.1. Power Supply, Voltage and Frequency.
>
> \(a\) Weighing devices that operate using alternating current must
> perform within the conditions defined in paragraphs T.N.3. through
> T.N.7., inclusive, from [-15 % to +10 % of the marked nominal line
> voltage(s) at 60 Hz]{.underline} [or the]{.underline} voltage range
> [marked by the manufacturer at 60 Hz (range takes
> precedence)]{.underline}.

The NIST technical advisor modified language from OIML R76-1 for
Non-Automatic Weighing Instruments and the OIML R76-2 test form for
voltage tests to amend existing Publication 14 voltage power supply
language and tests in Section 60.7. The Sector was asked to review the
following recommended language for Publication 14.

**60. Power Voltage Variations**

[Code References: T.N.8.1.3.]{.underline}

> The purpose of varying the power supply is to determine the
> performance and operating characteristics of the equipment under test
> at different voltage levels [required by
> T.N.8.1.3.]{.underline}~~found in the field under normal operating
> conditions.~~

**Note**: Where an instrument is powered by a three-phase supply, the
voltage variations shall apply for each phase successively.

> [If the instrument is provided with an automatic zero-tracking device,
> it may be in operation during the test, in which case the error at
> zero point shall be determined by determining the error at a test load
> several intervals above the zero tracking limits.]{.underline}
>
> ***(Delete paragraph 60.3.4.)***
>
> ~~60.3.4. AZSM operable if so equipped and appropriate for the
> intended use.~~

Voltage Variations: T.N.8.3.1. Power Supply

Control Number:

Model Designation:

Date:

Technician:

Verification

Scale interval e:

Resolution during test

(smaller than e):

Automatic zero-setting and zero-tracking device is:

Non-existent Not in operation Out of working range In operation

Marked nominal voltage or voltage range: V

E = I + ½~e~ - ∆L -- L

E~c~ = E -- E~0~ with E~0~ = error at zero or near zero (\*)

+-------------+----+---------+--------+--------+------+--------+-----+
| Voltage     | U  | Load    | Indi   | Add.   | E    | Cor    | mpe |
|             |    |         | cation | Load   | rror | rected |     |
|             | \  | L       |        |        |      | error  |     |
|             | (V |         | I      | ∆L     | E    | E~c~   |     |
|             | \) |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
| Reference   |    | 10e =   |        |        |      | (\*)   |     |
| Value       |    |         |        |        |      |        |     |
| (\*\*)      |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
|             |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
| \"  - 15 %  |    | 10e =   |        |        |      |        |     |
| (\*\*)      |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
|             |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
| \" + 10 %   |    | 10e =   |        |        |      |        |     |
| (\*\*)      |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
|             |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
| Reference   |    | 10e =   |        |        |      |        |     |
| value       |    |         |        |        |      |        |     |
| (\*\*)      |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
|             |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+
| \*\* In     |    |         |        |        |      |        |     |
| case a      |    |         |        |        |      |        |     |
| voltage     |    |         |        |        |      |        |     |
| range       |    |         |        |        |      |        |     |
| (V~min~,    |    |         |        |        |      |        |     |
| V~max~) is  |    |         |        |        |      |        |     |
| marked,     |    |         |        |        |      |        |     |
| then the    |    |         |        |        |      |        |     |
| test shall  |    |         |        |        |      |        |     |
| be          |    |         |        |        |      |        |     |
| performed   |    |         |        |        |      |        |     |
| at V~min~   |    |         |        |        |      |        |     |
| -15 % and   |    |         |        |        |      |        |     |
| V~max~ +10  |    |         |        |        |      |        |     |
| %.          |    |         |        |        |      |        |     |
+-------------+----+---------+--------+--------+------+--------+-----+

Passed Failed

Remarks:

**Discussion:** The Sector reviewed the proposed amendments to
Publication 14 and the new test form. One of the differences between the
test procedure outlined in the 2003 Edition of Publication 14 and the
proposed amendment is that the proposed procedure requires the evaluator
to conduct increasing and decreasing load tests. The earlier procedure
only tested the device under test at one test load. The NIST technical
advisor suggested the additional performance test in order to more
closely align the tests and report form with OIML R76. Some of the
participating laboratories indicated that the additional test should be
conducted. The manufacturers stated that the additional tests are not
necessary and suggested that the labs perform both tests over the next
year and report the difference in test results at the 2004 meeting of
the Weighing Sector. If there are no differences, the information could
be submitted to the Secretariats for the revision of R76 to justify
amending the international procedures and test forms.

Manufacturers recommended deletion of the language that the test shall
be performed at V~min~ ‑15 % and V~max~ +10 %. The justification is that
the range marked on the device includes the most common range of nominal
voltages in addition to the V~min~ -15 % and V~max~ +10 %. One
manufacturer stated that is it only necessary to test the device at -15
% +10 % of V ~nominal,~ or in case a range is marked on the scale,
V~min~ , V~max~ and V ~nominal~.

**Conclusion:** The Sector agreed with the recommendation to perform
voltage variation tests at -15 % +10 % of V ~nominal,~ or in case a
range is marked on the scale, V~min~ , V~max~ and V ~nominal~. The NIST
technical advisor has amended the test form recommended in the
background of this agenda item. The laboratories agreed to perform type
evaluation tests for voltage variations at a single test load and during
an increasing/decreasing load test and report the results to the
technical advisor prior to the next meeting of the Sector.

The Sector further recommends that the following be included in
Publication 14:

**60. Power Voltage Variations**

[Code References: T.N.8.1.3.]{.underline}

> The purpose of varying the power supply is to determine the
> performance and operating characteristics of the equipment under test
> at different voltage levels [required by
> T.N.8.3.1.]{.underline}~~found in the field under normal operating
> conditions.~~

**Note**: Where an instrument is powered by a three-phase supply, the
voltage variations shall apply for each phase successively.

> [If the instrument is provided with an automatic zero-tracking device,
> it may be in operation during the test, in which case the error at
> zero point shall be determined by determining the error at a test load
> several intervals above the zero tracking limits.]{.underline}
>
> ***(Delete paragraph 60.3.4.)***
>
> ~~60.3.4. AZSM operable if so equipped and appropriate for the
> intended use.~~

13\. VARIATION OF VOLTAGE

(T.N.8.3.1. DES Section 53.3)

Control No.:
\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\.....

Pattern designation:
\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\.....

Date: \...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\.....

Observer:
\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\.....

Verification scale interval e: \...\...\.....:

  --------------- --------------- -- -------------- -- --------- ------------ ----------------------------- -- -----------
  Automatic                                                                                                    
  zero-setting                                                                                                 
  and                                                                                                          
  zero-tracking                                                                                                
  device is:                                                                                                   

                  Non-existent       Not in            Out of                                                  In
                                     operation         working                                                 operation
                                                       range                                                   

                                                                                                               

  Marked nominal                                                              ...........................      
  voltage or                                                                                                   
  voltage range                                                                                                
  AC or DC (from                                                                                               
  main):                                                                                                       

  Marked nominal                                                                                               
  DC voltage                                                                                                   
  battery                                                                                                      
  operated                                                                                                     
  instruments:                                                                                                 
  --------------- --------------- -- -------------- -- --------- ------------ ----------------------------- -- -----------

E = I + 1/2 e -  L - L

E~c~ = E - E~0~ with E~0~ = error calculated at or near zero (\*)

<table>
<colgroup>
<col style="width: 2%" />
<col style="width: 16%" />
<col style="width: 2%" />
<col style="width: 5%" />
<col style="width: 6%" />
<col style="width: 10%" />
<col style="width: 11%" />
<col style="width: 13%" />
<col style="width: 9%" />
<col style="width: 11%" />
<col style="width: 9%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="3">Voltage (**)</td>
<td><p>U</p>
<p>(V)</p></td>
<td colspan="2"><p>Load</p>
<p>L</p></td>
<td><p>Indication</p>
<p>I</p></td>
<td><p>Add. Load</p>
<p> L</p></td>
<td><p>Error</p>
<p>E</p></td>
<td><p>Corrected</p>
<p>error E<sub>c</sub></p></td>
<td>mpe</td>
</tr>
<tr class="even">
<td colspan="3" rowspan="3">Reference value</td>
<td rowspan="3"></td>
<td>10 e</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>½ max</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>max</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td colspan="3" rowspan="3"><p>Reference value – 15 %</p>
<p>(or lower limit of battery voltage)</p></td>
<td rowspan="3"></td>
<td>10 e</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>½ max</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>max</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="3" rowspan="3"><p>Reference value + 10 %</p>
<p>(or upper limit of battery voltage)</p></td>
<td rowspan="3"></td>
<td>10 e</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>½ max</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>max</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td colspan="3" rowspan="3">Reference value</td>
<td rowspan="3"></td>
<td>10 e</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td>½ max</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>max</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="11">** In case a voltage range (V<sub>min</sub>,
V<sub>max</sub>) is marked, then the test shall be performed at
V<sub>min,</sub> V<sub>max</sub> and at the nominal line voltage of the
laboratory.</td>
</tr>
<tr class="odd">
<td colspan="11"></td>
</tr>
<tr class="even">
<td></td>
<td>Passed</td>
<td></td>
<td colspan="8">Failed</td>
</tr>
<tr class="odd">
<td colspan="11">Remarks:</td>
</tr>
<tr class="even">
<td colspan="11"></td>
</tr>
<tr class="odd">
<td colspan="11"></td>
</tr>
<tr class="even">
<td colspan="11"></td>
</tr>
</tbody>
</table>

[]{#__RefHeading___Toc58813064 .anchor}**14e. Concentrated Load
Capacity - Definition.**

**Background:** During its 2003 Annual Meeting, the NCWM agreed to the
following for the 2004 Edition of NIST Handbook 44:

> **concentrated load capacity (CLC) [(also referred to as Dual-Tandem
> Axle Capacity (DTAC)]{.underline}.** A capacity rating of a vehicle
> [or]{.underline} axle-load scale specified by the manufacturer,
> defining the maximum load [applied by a group of two axles with a
> centerline spaced 4 feet apart and an axle width of 8
> feet]{.underline} for which the weighbridge is designed. The
> concentrated load capacity rating is for both test and use.\[2.20\]

**Discussion/Conclusion:** The Sector compared the definition of \"CLC\"
as adopted by the 88^th^ NCWM at its Annual Meeting to that in
Publication 14 Section DES 65 -- Vehicle Scales. The Sector recommends
no further action on this item since changes in the definition of CLC in
Handbook 44 do not affect the test procedures in Publication 14.

[]{#__RefHeading___Toc58813065 .anchor}**14f. Substitution and Strain
Load Definitions, Test Notes and Tolerances.**

**Background:** During its 2003 Annual Meeting, the NCWM agreed to the
following for the 2004 Edition of NIST Handbook 44:

> **N.1.11. Substitution Test. -** In the substitution test process,
> material or objects are substituted for known test weights, or a
> combination of known test weights, and previously quantified material
> or objects, using the scale under test as a comparator. Additional
> test weights or other known test loads may be added to the known test
> load to evaluate higher weight ranges on the scale.
>
> **N.1.12. Strain-Load Test. -** In the strain-load test procedure, an
> unknown quantity of material or objects is used to establish a
> reference load or tare to which test weights or substitution test
> loads are added.
>
> **T.6. Tolerances for Substitution Test. -** Tolerances are applied to
> the scale based on the substitution test load.
>
> **T.7. Tolerances for Strain-Load Test. -** The tolerances apply only
> to the test weights or substitution test load.
>
> **[substitution test. A scale testing process used to quantify the
> weight of material or objects for use as a known test
> load.]{.underline}**
>
> **[substitution test load. The sum of the combination of field
> standard test weights and any other applied load used in the conduct
> of a test using substitution test methods.]{.underline}**

**Discussion:** The Sector compared the new definitions for
\"substitution test\" and \"substitution test load\" as adopted by the
88^th^ NCWM at its Annual Meeting and to those in Publication 14 Section
DES 65 -- Vehicle Scales, 68 -- Railroad Track Scales, and 71 -- Hopper
Scales. Some of the Sector members noted that Richard Suiter, (NIST)
developed substitution test procedures for hopper scales that were
incorporated into the 1998 Edition of Publication 14. These procedures
could be modified to become a generic procedure suitable for use on all
scales. The following day the Sector reviewed the procedures amended by
Gary Castro (CA) and agreed that they could be used for as a
substitution test procedure suitable for most scales.

**Conclusion:** The Sector recommends that the following test procedure
for substitution tests be incorporated into NCWM Publication 14:

***Add new Publication 14 Section 74 and refer existing references in
Sections 64.3, 65a, 65b, and 65c to this section.***

[74 Guidelines for Substitution Test Procedures]{.underline} (Locate
along with guideline documents at end of Pub 14 DES)

Code References: [N.1.11., and N.1.12.]{.underline}

[In the substitution test process, material or objects are substituted
for known test weights, or a combination of known test weights, and
previously quantified material or objects, using the scale under test as
a comparator. Additional test weights or other known test loads may be
added to the known test load to evaluate higher weight ranges on the
scale.]{.underline}

[Tolerances are applied to the scale based on the substitution test
load.]{.underline}

The minimum amount of known test weight needed for a substitution test
is equal to at least 25 % of the capacity of the scale. Substitution
testing may be used to reach the necessary test load.

74.1. Indicator Tests

Beam Scale:

If the indicating element is a weighbeam and poise, sensitivity tests
should be conducted as follows:

The sensitivity tests are conducted at zero load and at the maximum test
load. The sensitivity test is conducted by determining the actual test
weight value needed to bring the beam from a rest point at the center of
the trig loop to rest points at the top and bottom of the trig loop. The
maximum load applied to a scale to determine sensitivity near scale
capacity does not have to be a known weight.

Digital Indicator:

If the indicating element is a digital indicator, width-of-zero tests,
zone-of-uncertainty tests, and appropriate tests for the automatic
zero-setting mechanism (if so equipped) should be conducted as indicated
in other sections of this document.

74.2. Performance Test

> 74.2.1 Apply error/balance weights to the load-receiving element equal
> in amount to the minimum division.

74.2.2. Zero the scale.

> 74.2.3. Apply error/balance weights in intervals equal to 0.1 of the
> minimum division (d) to the load-receiving element until the indicator
> just begins to flash between the zero-balance weight and the next
> division. Record the total amount of error/balance weights on the
> load-receiving element. Return to zero and remove weights in intervals
> equal to 0.1 d from the load-receiving element until the indicator
> just begins to flash between the zero-balance weight and the next
> division. The difference in error weights from zero to a zone of
> uncertainty above and below zero is the reference value to be used to
> determine the actual error at all loads during the entire test.
>
> For example: d = 10 lb; from zero, adding 6 lb of error weights brings
> the display into the zone of uncertainty between zero and 10 lb.

74.2.4 Apply the known test weights to the load-receiving element and
observe the indicated weight.

> 74.2.5. Add or subtract error/balance weights from the load-receiving
> element until the indicator is in the zone of uncertainty for that
> indication. Record the total amount of error weights on the
> load-receiving element.
>
> For example: d = 10 lb; from zero, adding 6 lb of error weights brings
> the display into the zone of uncertainty between zero and 10 lb. If
> there were no error in the scale at 10 000 lb, when 10 000 lb of test
> weight is applied, the indicator should read 10 000; with the addition
> of 6 lb of error weights, the indicator should read 10 000/10 010.
>
> 74.2.6. If there is error in the scale at a given test load, the
> amount of error is determined by: (1) subtracting the amount of
> error/balance weights required to bring display into the zone of
> uncertainty for the indication at a test load from the amount of error
> weights required to bring the indication into the zone of uncertainty
> at no load, and (2) adding that difference to the indication error for
> the test load applied.
>
> Expressed as a formula it is:

  ------------------ ------- ----------------- ------- ------------ ------- -------------
  \[amount of error  **-**   \[amount of error **+**   \[(the       **-**   (the actual
  weights required           weights required          indication           weight of the
  to bring                   to bring                  at a given           test load)\]
  indication into            indication into           load)                
  the zone of                zone of                                        
  uncertainty at no          uncertainty at a                               
  load\]                     given load\]                                   

  ------------------ ------- ----------------- ------- ------------ ------- -------------

For example: d = 10 lb; from zero, adding 6 lb of error weights brings
the display into the zone of uncertainty between zero and 10 lb. When 10
000 lb of known test weight is applied, the indication is 9 980. The
amount of error weights required to display 9 980/9 990 is 9 lb. Thus,
the error at that test load is minus 23 lb:

\[6 lb\] -\[9 lb\] + \[(9 980 - 10 000 lb)\] = -23 lb

Record the error determined for this test load.

> 74.2.7. Remove test weights. Recheck the break point at zero load; any
> difference in the amount of error weights required should be recorded
> as a decreasing-load error.
>
> 74.2.8. Add grain or material (and trim weights if required) to the
> weigh hopper in an amount equal to the amount of the test weights that
> had been applied. Record the actual value of the substitution load.
>
> For example: At 10 000 lb, 8 lb of error weight is required to achieve
> the indication of 10 000/10 010. The error is minus 2 lb. After
> removing the 10 000 lb of known test weight, the 8 lb of error weights
> are left on the scale, and material and small weights are added until
> the indication is 10 000/10010 lb. The 8 lb of error weights are
> removed to bring the scale back to the same indication as when the 10
> 000 lb was first applied. The actual weight of the material is 10 000
> lb.)

74.2.9. Apply the test weights to the load-receiving element.

> 74.2.10. Add or subtract error/balance weights from the load-receiving
> element until the indicator displays the appropriate weight.
>
> 74.2.11. Error shall be determined by the amount of error/balance
> weights added to or subtracted from the load-receiving element to
> achieve the desired or correct reading. Record the error.
>
> 74.2.12. Continue alternately with material or objects and apply the
> test weights to determine the scale error at each step until the scale
> is tested to capacity. Each time material or objects are added, the
> actual reference weight should be determined. Each time the test
> weights are removed, the indication (corrected using error weights)
> should be compared to the previous reference value for the
> substitution load. Any difference in the readings is a decreasing-load
> error.
>
> 74.2.13. When a capacity-test load has been reached, the test weights
> should be removed and a decreasing-load error determined. Then, the
> test weights should be reapplied and the overload blanking point
> determined. Add weight (do not add material or objects) in small
> increments to the point where the displayed weight value blanks. This
> point should not be greater than 5 % above scale capacity. With the
> test weights left in place, remove the weight used to reach the
> blanking point. From the \"capacity test load\" the second time, the
> test weight should remain in place and the substitution material
> emptied from the hopper. The corrected reading should equal the value
> of the test weights. Any error in the reading should be recorded as a
> decreasing-load test. The test weights should be removed and a
> corrected zero balance read and recorded as a decreasing load/return
> to zero test.

***NOTE:** If there is an error when the substituted material is removed
with the test weights in place and a similar error at zero,
consideration should be given to the possibility that some product was
retained on the scale either at the start or at the end of the test.
During normal use, the device automatically corrects for that situation,
ref S.1.4.*

> 74.2.14. If the substitution-load increments are equal to the amount
> of known test weight, the tolerances can be applied to the combined
> test load. If material or object loads are significantly different,
> the applicable tolerance shall apply only to the known test load at
> each step (i.e., material and test weights).

**NOTE:** For beam-type indicators if exact substitution values cannot
be achieved, it is necessary to treat test loads beyond the amount of
known test weight as strain loads.

[]{#__RefHeading___Toc58813066 .anchor}**15. Policy on Converting CLC on
Section Capacity for Active Livestock Scale CCs.**

**Source:** NIST WMD

**Background:** NIST has become aware that a livestock scale
manufacturer and Montana Weights and Measures has identified a problem
in H44 paragraph S.6.5 for 2-section livestock scales with CLCs greater
than 1/2 times the nominal capacity. Prior to CLC, there was no Handbook
44 relationship of the rated section capacity to the nominal capacity.
The section capacity requirement added to Handbook 44 in 2002 now has a
relationship with the nominal capacity, depending on the number of
sections. When CLC requirements were added to Handbook 44 in 1989, the
NTETC Weighing sector established a policy that allowed existing section
capacities be reclassified with CLCs determined by the manufacturer. The
following discussion and conclusion is from the January 1989 Sector
Summary:

> **Relationship of concentrated load capacity to section capacity**
>
> ***Discussion:*** Beginning January 1, 1989, vehicle scales must be
> marked with a concentrated load capacity. Although the concentrated
> load capacity was generally discussed to be 80 % of the section
> capacity, there is no requirement in Handbook 44 that specifies the
> relationship. New scale types submitted for evaluation will be tested
> for accuracy to the CLC rating. There is concern that the CLC rating
> for scale models with Certificates of Conformance may have their CLCs
> set equal to the section capacity without verifying the weighing
> accuracy to the CLC. This could result in unfair competition.
>
> It was suggested that the CLC rating could be determined by looking
> back on the amount of weight that was used in the type evaluation of
> the scale. The rating could be limited to 1.25 times the maximum load
> that was applied.
>
> It was concluded that scales currently in production must carry a CLC.
> A manufacturer may request an addendum to a Certificate of Conformance
> (CC) but it is not necessary to issue a new CC. It was concluded that
> State enforcement would be adequate to control the validity of CLCs
> for these scales. If there is any question about the validity of the
> CLC rating on a scale, then the States should test up to the CLC to
> determine if the scale meets the accuracy requirements.
>
> ***Conclusion:* A relationship between the concentrated load capacity
> (CLC) and the section capacity of a scale is not specified. Scales
> that have received type evaluation before the CLC marking requirement
> became effective may be rated with a CLC specified by the
> manufacturer. It is up to State enforcement to verify the validity of
> CLC ratings.**

The Sector was asked to consider a technical policy to convert CLC
ratings on livestock scale Certificates of Conformance (CCs) for
Publication 14. The Sector may want to consider recommending that
existing CLC ratings be converted to section capacities provided the
section capacities comply with Handbook 44 paragraphs S.6.5 Livestock
Scales. For scales with CLC ratings exceeding the capacity for scales
with 2 sections or scales with more than 2 sections where the CLC rating
exceeds one-half the nominal capacity, the committee should consider:

1)  Reducing the section capacity so that it complies with S.6.5.;

2)  Requiring the livestock scale be submitted for NTEP evaluation to
    increase the nominal capacity, or

3)  Recommend alternative language for paragraph S.6.5. (ex. Cap
    [\<]{.underline} section capacity x (N -- 0.5). ***Technical Advisor
    Note:*** *This may be technically acceptable for livestock scales
    are based on vehicle scale designs, but may not be appropriate for
    livestock scales designed specifically for livestock applications.;*

4)  The Sector may develop other suggestions; or

5)  Review the following proposal submitted by the State of Montana and
    provide the WWMA and NCWM S&T Committees with a Weighing Sector
    position:

> **PROPOSAL: Strike S.6.5. Livestock Scales and amend Table S.6.3.a.**
>
> S.6.5. Livestock Scales. -- A lives stock scale shall be marked with
> the maximum capacity of each section of the load-receiving element of
> the scale. Such marking shall be accurately and conspicuously
> presented on, or adjacent to the identification or nomenclature plate
> that is attached to the indicating element of the scale*. The nominal
> capacity of a scale with more than two sections shall not exceed twice
> its rated section capacity. The nominal capacity of a two-section
> scale shall not exceed its rated section capacity.*
>
> *\[Nonretroactive as of January 1, 2003\]*
>
> (Added 2002)
>
> **Amend Table S.6.3.a. as follows:**
>
> 14\. *Required on livestock and railway-track scales. When marked on
> vehicle and axle-load scales manufactured before January 1, 1989, it
> may be used as the CLC. For livestock scales manufactured between
> January 1, 1989 and January 1, 2003, required markings may be either
> CLC or section capacity. \[Nonretroactive as of January 1,
> 2003[X]{.underline}\]*
>
> 22\. *Combination vehicle/livestock scales must be marked with both
> the CLC for vehicle weighing. and the section capacity for livestock
> weighing. All other requirements relative to these markings will
> apply.*
>
> *\[Nonretroactive as of January 1, 2003[X]{.underline}\]*
>
> **JUSTIFICATION:** While marked maximum sectional capacity and CLC
> values are necessary to define testing limits for Railway, Vehicle,
> and Axle-load scales which may have a large %age of the total load
> applied to a small part of the load-receiving platform, they are not
> necessary for livestock scales where the load will be more dispersed
> over the load-receiving element due to the nature of the commodity
> being weighed.
>
> Currently several manufacturers\' NTEP CCs for approved livestock
> scales do not comply with S.6.5, nor is there any metrological reason
> to do so. As long as the devices are designed to meet N.1.3.4. and
> N.1.3.8., as well as the other pertinent performance tests, the rated
> sectional capacity is irrelevant.

**Discussion:** The Sector discussed language to establish a technical
policy for livestock scale CCs issued between 1999 and 2003. One of the
manufacturers stated that they increased their nominal capacity when
their CCs were amended to change section capacity ratings to CLC ratings
and that their nominal capacities should be lowered to comply with the
new requirements. The NIST technical advisor noted that not all
livestock scale CC holders requested this increase in nominal capacity.
A Sector member noted evaluations conducted during this period complied
with all Handbook 44 requirements at the time of the evaluation, and
forcing these companies to reduce the nominal capacity or resubmit the
device for reevaluation is unreasonable.

The Sector reviewed and discussed a proposal from the State of Montana
that would remove the apparent "design criteria" in the recently adopted
language in Handbook 44 paragraph S.6.5. It was also reported by Don
Onwiler (NE) that the Central Weights and Measures Association
Specifications and Tolerances (S&T) Committee has forwarded this
proposal to the NCWM S&T Committee. The Nebraska and Oregon
participating laboratories supported the Montana proposal since it
removes "design criteria" from Handbook 44 and would not penalize
manufacturers that have complied with earlier type evaluation
requirements. One manufacturer stated that the proposal would permit
under‑engineered scales and possibly make manufacturers liable in the
event of damage should a scale collapse under concentrated loads. Other
manufacturers made no additional comments in support of or opposition to
this statement.

**Conclusion:** The Sector did not reach consensus on a technical policy
for livestock scale CCs with CLC ratings. Additionally, the Sector did
not develop a position on Montana's proposal to the NCWM S&T Committee.

[]{#__RefHeading___Toc58813067 .anchor}**16. Not-Built-For-Purpose
(Software) System Evaluations.**

**Source:** Maryland NTEP Laboratory

**Background:** The NTEP labs receive a large number of assignments for
software-based systems. The laboratories have been informed to evaluate
these systems using the requirements for hardware-specific devices. The
labs are finding this increasingly difficult to do.
Not-built-for-purpose software, that is software installed on an
off-the-shelf personal computer (PC), appears to provide the end user
with greater access to change metrologically significant parameters than
the software placed on an EPROM within a hardware-specific device.

During the 1998 NCWM Annual Meeting, the Conference decided that NTEP
would not evaluate and issue NTEP certificates for software. Evaluations
would be conducted on complete systems and would receive device or
system NTEP certificates. The NTEP laboratories and the manufacturers
were not given any documented guidance on how to address the following
issues on the complete software-based systems:

-   What hardware/software could be substituted in the system and what
    is the basis for determining the compatibility?

-   What must be listed on the Certificate if verification of the
    software used in the system is necessary (operating system, memory
    size, processor speed)?

The thoroughness of all evaluations relates directly to the evaluator's
experience as a field inspector and knowledge of PCs, programming
languages and basic scale designs. Without clear guidelines and proper
training in software, the NTEP laboratories may not apply the
appropriate requirements uniformly.

The last Software Working Group was assigned the task of developing
guidelines. This task was never completed. All laboratories should
utilize the interim policy described in the October 8, 1997, NTEP memo.
Alternatively the labs could develop a supplemental checklist for the
evaluation of software.

The interim policy has not been updated or replaced and is not being
consistently applied among the NTEP labs. Software-generated primary
weight displays are not consistently checked for compatibility with
various combinations of hardware interfaced to the software.

At their 2003 meeting, the weighing devices participating laboratories
recommended that the NTETC Weighing Sector and NTEP Committee consider
incorporating an updated version of the interim policy (October 8, 1997)
into Publication 14, "Administration Policy Section C, Devices to be
Submitted," or Publication 14 Technical Policy for Scales.

The labs agreed that an evaluation of a software-based system does not
need to include a field evaluation if it can be demonstrated that the
system complies with Publication 14 procedures when interfaced with
weighing-elements or load‑cell simulators, indicator(s), recording
elements and representative computer hardware and operating systems. The
evaluation can take place at the NTEP laboratory, manufacturer\'s
facility, a field test site, or a combination of locations.

Additionally, some of the labs requested clarification about the interim
policy listing compatible hardware and whether the list was applicable
to combinations of weighing and measuring device elements or
not-built-for-purpose hardware such as computer monitors,
microprocessors, and computer operating systems. NIST confirmed the
statement **"that compatibility list will be included on the Certificate
of Conformance"** was intended to apply to the computer (PC compatible,
Mac, or other) using the application software. It was not intended that
the CC list compatible weighing, measuring, indicating, and recording
elements.

**Discussion:** Since this item was inadvertently not discussed during
the 2003 Weighing Sector meeting, the NIST technical advisor balloted
the Sector on the following policy for software-based
not-built-for-purpose devices and accessories to weighing systems and
asked the Sector to consider a recommendation to add the policy to
Publication 14 NTEP Technical Policy for Scales Section A. Models to be
Submitted for Evaluation.

> **Software-based, not-built-for--purpose devices.** Software-based
> not-built-for-purpose weighing equipment or accessories used in
> conjunction with weighing equipment or systems submitted for
> evaluation must be evaluated with a complete weighing system and will
> be evaluated using the same Publication 14 criteria applicable to
> built‑for-purpose weighing equipment or accessories. The applicant
> will provide the NTEP participating laboratory a representative
> weighing system including indicating, printing, and load-receiving
> elements (or load-cell simulators) along with representative
> not-built-for-purpose hardware such as a computer running the
> application software, keyboard, and computer display (the applicant\'s
> software will not be installed in computers used by the NTEP
> laboratories). The evaluation will include all potential use
> applications (weigh‑in/out, livestock, postal/parcel shipping,
> automatic bulk weighing, etc.) identified on the NTEP application. The
> evaluated use applications will be listed on the Certificate of
> Conformance.
>
> Typically, the entire evaluation can be accomplished at the NTEP
> participating laboratory or at a manufacturer\'s or applicant\'s
> facility. It is up to the applicant and the assigned laboratory to
> conduct the evaluation at the participating laboratory,
> manufacturer\'s facility, field test site, or a combination of test
> sites where data can be collected and evaluated to complete the
> evaluation.
>
> The NTEP application must specify the minimum operating requirements
> for which software used in the system is designed to be compatible,
> and that list will be included on the Certificate of Conformance. For
> example, the CC may state, "The software used in not-built-for-purpose
> weighing devices or used in connection with weighing devices or
> systems must be used with any generic, IBM-compatible (or MAC)
> computer, with a XXX or higher operating system, 4XX or higher
> processor."

The results of the vote were:

> 9 -- Affirmative (3 labs, 5 manufacturers, and 1 manufacturer with
> comments)
>
> 1 -- Opposed with comments (lab)
>
> 4 -- Abstained (3 were not present at the meeting)

The following are comments received on the returned ballots and the NIST
technical advisor\'s responses:

**Comment 1:** States concern about later operating systems and
recommends the CC list the operating systems used for evaluation and
detail compatible current operating systems. Later systems and versions
need verification as to compatibility by the manufacturer.

***Technical Advisor response:** It was the intent of the Weighing
Sector to allow for upgrades within evaluated operating systems such as
DOS, Windows, Mac OS, Linux, etc.*

**Comment 2:** Recommends the following hardware, if used as a standard
or optional part of the system, be submitted with the evaluation:

  ----------------------------- ------------------ ----------------------
  Indicating element            Keyboard           Scanner

  Weighing *(load-receiving)*   Monitor            Operating system
  element                                          

  Printer                       Controller PC      Mouse

  Load cell simulator(s)        UPS                Programmable logic
                                                   controller (PLC)
                                                   emulator

  Application & associated      ECR                
  software                                         
  ----------------------------- ------------------ ----------------------

***Technical Advisor response:** Other than a scanner, ECR, UPS, and
PLC, the items listed above better clarify the intent of hardware that
should to be submitted for evaluation. Additionally, it should not be
necessary to submit a load‑receiving element if there are sufficient
load-cell simulators (unless the software- based system has the
capability to be simultaneously interfaced with multiple load-receiving
elements according to Publication 14 Section 34, Page DES‑52).*

**Comment 3:** In paragraph 1, the term "potential" may be interpreted
to mean features that provide a potential commercial use (but are
intended to be sealed when the device is traceable to the CC). \[These
features\] would have to be evaluated and recommends "potential" be
removed.

**Technical Advisor response:** Agree and will delete the term as an
editorial change.

**Comment 4:** Modify the second paragraph as follows:

~~Typically, t~~ The entire evaluation can be accomplished at the NTEP
participating laboratory or at a manufacturer's or applicant~~'~~s
facility. ~~It is up to t~~[T]{.underline}he applicant and the assigned
laboratory ~~to conduct the evaluation at the participating laboratory,
manufacturers facility, field~~ [will determine the test
site(s)]{.underline}, ~~or a combination of test sites where data can be
collected and evaluated~~ [where]{.underline} ~~to~~ ~~complete~~ the
evaluation [will be conducted]{.underline}.

***Technical Advisor response:** Agree, however the applicant and
assigned laboratory need to agree on the proposed site of the
evaluation.*

**Comment 5:** Delete and replace paragraph 3.

The NTEP application must specify the minimum operating requirements
(on) all of the hardware for which software used in the system is
designed to be compatible, and that list will be included on the
Certificate of Conformance. For example, the CC may state, "The software
used in not-built-for-purpose weighing devices or used in connection
with weighing devices or systems must be used with any generic,
IBM-compatible (or MAC) computer, with a XXX or higher operating system,
4XX or higher processor."

The recommendation (noted above) needs clarification of what is the
worst case. The CC wording example is not clear.

The system must be evaluated with the worst case (minimum system
requirements utilizing all standard and optional equipment). It has been
our experience that some applications encounter motion detection and
other problems on slower processors. We have also evaluated systems that
need more RAM to run optional features.

For example: The manufacturer will often submit a PC with the fastest
processor and the largest RAM. However, they want the CC to list PCs
with a slower processor speed and smaller RAM to cover the new
application on older systems.

The commenter suggested that the language in the last paragraph of the
recommendation be modified as follows:

The NTEP application must specify the minimum operating requirements and
the compatible metrological equipment for which software used in the
system is designed. The most stringent test will be conducted. The
evaluation will be conducted on a system with the minimum operating
requirements specified by the manufacturer (i.e., slowest processor
speed, minimum RAM, etc.). The requirements and metrological equipment
will be included on the Certificate of Conformance. Example:

> "The system is comprised of: \_\_\_\_\_, Inc. Model \_\_\_\_
> application software, a(n) \_\_\_\_ compatible computer, a certified
> and compatible indicating element. This certificate is applicable to
> \_\_\_\_, Inc. model \_\_\_\_ version \_\_\_\_ and higher running on a
> \_\_\_ utilizing the \_\_\_\_ Version \_\_\_\_ operating system. The
> minimum PC system requirements are: \_\_\_\_ processor with \_\_\_\_
> GHz or higher processor and speeds."

***Technical Advisor response:** I agree that the applicant must
identify minimum system requirements in the application. However, the
language proposed by the commenter appears to limit upgrades to specific
versions of operating systems and is beyond the scope and intent of the
discussion and ballot language. Operating systems (OS) can be upgraded
from the OS that was evaluated provided that it is the same basic type.
For example, a system evaluated with a Windows 95 operating system would
be covered if it were installed on a system that used Windows 2000.
However, the CC would not cover the same system using a Windows OS if it
were installed on a system using a MAC OS. Additionally, requiring the
applicant to list the "minimum RAM" may not be practical. Even small
upgrades to the computer, peripheral devices, and operating system may
require more memory than the amount of memory submitted for the original
evaluation (insufficient memory would not produce incorrect measurement,
but instead lead to system crashes or error messages).*

**Comment 6:** Add the following additional paragraph

> The NTEP application for a software-based weighing device or system
> that generates the primary weight display must specify all compatible
> scales.

**Justification provided in the comments:** SMA has done a commendable
job in developing a standard scale serial communication protocol (see
SMA SCP-0499).

The Foreword of the document notes "The intent of this Scale Serial
Communication Protocol Standard is to make common the method for
weighing scale communication across all scale manufacturers. By the
adoption of this standard, by the SMA, this will create a more open
architecture for weighing devices and allow a standard for scale
connectivity across many different manufacturers."

Unfortunately, not every manufacturer of weighing-device developers of
software-based weighing systems uses this protocol. The issue with
primary weight displays is not whether the scale understands the
commands sent to it. The issue is whether the software application,
receiving information from the scale, is interpreting it correctly.

Some have stated that if the scale does not understand the command it
will send back an error message. We have not found this to be true in
(some of) the systems we have evaluated. In some cases we have found
that:

-   the weight display will freeze on the last weight recognized, and
    the system will compute every charge using that weight;

-   the system will not recognize the scale's over-capacity or
    behind-zero codes and continue to compute using incorrect weights;

-   the system will drop the last digit from every weight value.

Some have stated that "it will be caught by the field and the
manufacturer will modify the software to make it work." Isn't that a
metrological change? If yes, the system is no longer traceable to the
CC.

***Technical Advisor response:** The examples listed in this proposal
were addressed by the Software Working Group and at the 2002 Weighing
Sector meeting. The items listed are more likely installation issues and
are just as likely to appear with other devices such as printers and
other auxiliary (not primary) indicating elements.*

**Conclusion:** The Sector recommends the following technical policy, as
edited by the NIST technical advisor, based upon comments received in
the responses to the ballot, for software-based not-built-for-purpose
devices be added to Publication 14 NTEP Technical Policy for Scales
Section A. Models to be Submitted for Evaluation (page DES‑1).

> Software-based, not-built-for--purpose devices. Software--based,
> not-built-for-purpose weighing equipment or accessories used in
> conjunction with weighing equipment or systems submitted for
> evaluation must be evaluated with a complete weighing system and will
> be evaluated using the same Publication 14 criteria applicable to
> built‑for‑purpose weighing equipment or accessories.
>
> The applicant will provide the NTEP participating laboratory with a
> complete and representative weighing system, and shall include the
> hardware necessary for the normal metrological operation and NTEP
> evaluation of the device.
>
> The following is a list of hardware that may be necessary to complete
> the NTEP evaluation. The applicant and assigned laboratory should
> agree on additional pieces of hardware necessary for the normal
> metrological operation and NTEP evaluation of the system.

  ---------------------------------------------- ------------------------
  Complete scale(s) or Separable (Primary)       
  Indicating Element with a Load-receiving       
  element(s) and/or load-cell simulator(s); and  

                                                 

  Printing/recording element                     Mouse

  Minimum computer technology and memory to be   Operator keyboard
  covered on the CC                              

  Application and associated software            Monitor

  Type and minimum Operating System (OS) to be   
  covered on the CC                              
  ---------------------------------------------- ------------------------

> The applicant\'s software will not be installed in computers used by
> the NTEP laboratories. The evaluation will include all use
> applications (weigh‑in/out, livestock, postal/parcel shipping,
> automatic bulk weighing, etc.) identified on the NTEP application.
> Only the evaluated use applications will be listed on the Certificate
> of Conformance.
>
> The entire evaluation can be accomplished at the NTEP participating
> laboratory or at a manufacturer's or applicant's facility. The
> applicant and the assigned laboratory shall agree where to conduct the
> evaluation, either at the participating laboratory, manufacturer\'s
> facility, field test site, or a combination of test sites where data
> can be collected and evaluated to complete the evaluation.
>
> The NTEP application shall specify the minimum operating requirements
> for which software used in the system is designed to be compatible.
> That list will be included on the Certificate of Conformance. For
> example, the CC may state, "The software used in not-built-for-purpose
> weighing devices or used in connection with weighing devices or
> systems must be used with any generic IBM-compatible (or MAC)
> computer, with an XXX (ex: DOS X.X, Windows XX.X, IBM PS2, MAC OS X.X,
> and etc.) or higher operating system, and an XX or higher processor ."
>
> The CC must include the following information:

-   Application(s) (ex. POS, livestock, parcel, automatic bulk-weighing,
    and etc.)

-   Manufacturer or applicant of the software-based,
    not-built-for-purpose device

-   Application software model(s) evaluated

-   Application software version XXXXX evaluated and higher

-   (MAC, PC or XXX) compatible "software-based, not-built-for-purpose
    device (hardware)"

-   (DOS X.X, MAC OS X.X, Windows XX, IBM PS2, or . . .) or higher
    operating system

-   XXX or higher microprocessor with a speed of XXX or higher

-   Additional hardware necessary for the normal "metrological"
    operation of the device (e.g. UPS, PLC controller, and etc.

> A statement such as "The ***software-based, not-built-for-purpose
> device or system*** may be interfaced with compatible weighing
> equipment that has a CC (ex. complete scale(s) or separable indicating
> and load-receiving elements)."

[]{#__RefHeading___Toc58813068 .anchor}**17. Section E. Modification of
Type -- Replacing Lever Systems with Load Cells.**

**Source:** NTEP Participating Laboratories

**Background:** Publication 14, Section E, Part 1 is unclear with
respect to the replacement of levers with load cells. Part 1 states,
"Total replacement of any levers . . ." is a modification of type. For
example, the transverse lever and main levers have been removed on a
three-section scale. All support levers are still in place, but there
are now three load cells. Is this type modification ***acceptable***
without **a**dditional NTEP evaluation? The Sector is asked to consider
the following proposal. If the modification ***is not acceptable,***
Section E should be amended to clarify the use of the words "**total**"
and "**any**" since they may be considered conflicting terms or may be
responsible for inconsistent application of this technical policy.

Additionally, part 2 of Section E requires that the modification option
for placing a load cell in the steelyard rod be listed on the CC. The
NTEP laboratories question if this policy is necessary.

At the 2003 Participating Laboratory Meeting, the Nebraska Participating
Laboratory stated that this is not a broad based problem but NTEP should
be specific on the regarding the various type of levers that can or
can't be replace without additional NTEP evaluation

The labs supported the change in that the placement of a load cell in
the steelyard rod does not have to be listed on the Certificate of
Conformance. Field inspectors are not aware of this NTEP requirement,
and this type of option or feature has not consistently been listed on
CCs. There was also discussion about whether or not the replacement of
different types (function) of levers or partial replacement of levers
with load cells should be allowed without additional NTEP evaluation.
The labs were concerned that individual states might apply different
policies without a specific NTEP policy.

The Kansas lab related its experiences with lever replacement as a
service agent and presented the following justifications that the
partial replacement of levers should be considered a modification of
type that requires additional NTEP evaluation.

1.  Center extension levers are typically replaced if the entire scale
    has deteriorated and should be replaced.

2.  Main lever (sections) ratios and lever multiples change with
    mechanical adjustments. This could be a problem with selecting the
    proper load cell depending upon which lever the load cell was
    replacing. There are compatibility problems unless mechanic knows
    what they are doing.

3.  Independent power supplies may be required which affect the load
    cell sensitivity to influence factors.

4.  There are too many combinations and variable lever types, function
    and of load cells in mechanical scales and systems to make a "one
    size" fits all policy regarding partial lever replacement.

5.  The different mechanical (multiple) ratios and the amount of lever
    movement or travel have an impact on compatibility that requires a
    well-trained service agent.

This subject was also addressed at the November 1998 meeting of the
NTETC Weighing Sector. The following has been copied from the 1998
Summary of the NTETC Weighing Sector:

> **29) Conversion of Mechanical Lever Systems to Digital**
>
> **Source: NTEP Laboratories**
>
> ***Background:*** The Sector previously agreed that converting a
> mechanical scale to accept a digital indicator by placing a load cell
> at the end of the transverse lever is a modification of the original
> type, but the conversion option can be added to an NTEP CC for the
> mechanical version without additional testing. NTEP has been asked if
> it is acceptable to remove the transverse lever and insert two load
> cells. This question was discussed at the June 1998 meeting of the
> NTEP laboratories, and other examples were given such as removing a
> torsion lever and inserting three or four load cells.
>
> The Sector was asked to readdress this issue and decide how far back
> into the lever system a service company can go with the addition of
> load cells before additional testing would be needed to cover the
> modified device on the Certificate of Conformance.
>
> ***Discussion:*** Several examples of conversions that have been
> encountered by NTEP were given. Several members agreed it would be
> very difficult for a field official to determine the suitability of
> load cells in a device where some of the levers had been removed and
> load cells had been substituted. The multiple of the scale at the load
> cell point would be very hard to determine. There was general
> consensus that anything beyond placing a load cell at the steelyard
> end of a transverse lever is a modification of type and that device
> could not be covered by the Certificate of Conformance without
> additional testing.
>
> ***Conclusion:* The Sector agreed the replacement [any]{.underline}
> levers of a mechanical weighing element with load cells is a
> modification of type that requires NTEP evaluation in order to be
> covered by an NTEP Certificate of Conformance. Additional language was
> added to Section \"E\" paragraph 1 *(and is in the 2003 Edition of
> Publication 14).***

The participating laboratories agreed that any replacement or
modification of any lever (knife/bearing size, material, etc.) is
considered a modification of type that should be evaluated and listed on
the CC. The laboratories agreed to submit the following amended language
to the Weighing Sector for consideration. Additionally, the Sector
discussion should include the necessity of a nonretroactive statement in
Part 1.

**E. Modification of Type**

***Note:** Drawings should be submitted for all
application[s]{.underline} for a modification of type (except paragraph
2). Any NTEP application for a modification of type must be a completed
NTEP Scales Application. (not an NTEP non-technical, editorial change
application)*

1\. **Replacing a Lever System with Load Cells**. ~~Changing a scale
from a lever system scale to a full electronic scale, is considered a
modification of type. Total~~ Replacement [or modification]{.underline}
of any levers in a mechanical scale [for the purpose of installing load
cells]{.underline} is a modification of type that is not covered by the
original CC without additional [NTEP]{.underline} testing.

2\. **Conversion of Mechanical Scale to Electro-Mechanical.** The
placement of a load cell in the steelyard rod to change from a
mechanical to an electronic indicator is an acceptable modification of
type that does not require evaluation for an existing CC to apply~~;
however, the modification option must be listed on the NTEP CC~~.

*(There are no recommendations to amend the remaining paragraphs in
Section E)*

**Discussion/Conclusion:** There was general support for the language to
amend Section E as recommended by the NTEP participating laboratories. A
scale manufacturer asked if the recommended policy would apply to
replacing the levers on mechanical scales and replacing them with load
cells if the mechanical scales had an identical weighbridge and a full
electronic scale. The response from the Sector indicated that the policy
*would not apply if* the original manufacturer or its authorized
representative modified the mechanical scales consistent with a full
electronic scale with the same weighbridge design. The proposed policy
would apply if the original manufacturer were not involved with the
modification or the weighbridges were not identical. Further, the NTEP
technical policy on retrofitting scales would apply if a manufacturer
performed this modification to another manufacturer\'s scale and
relabeled it as its own. Additionally, the Sector considered cutting
levers and removing parts of a lever system (e.g., pipe lever) as a
modification to the type that would require additional NTEP evaluation
to be covered on an NTEP CC.

The Sector recommends the following amendments to Publication 14 Section
E. Modification of Type -- Replacing Lever Systems with Load Cells and
Conversion of Mechanical Scale to Electro-Mechanical:

**E. Modification of Type**

***Note:** Drawings should be submitted for all applications for a
modification of type (except paragraph 2). Any NTEP application for a
modification of type must be a completed NTEP Scales Application. (not
an NTEP non-technical, editorial change application)*

> 1\. **Replacing a Lever System with Load Cells**. ~~Changing a scale
> from a lever system scale to a full electronic scale, is considered a
> modification of type. Total~~ Replacement [or
> modification]{.underline} of any levers in a mechanical scale [for the
> purpose of installing load cells]{.underline} is a modification of
> type that is not covered by the original CC ~~without additional
> testing~~.
>
> 2\. **Conversion of Mechanical Scale to Electro-Mechanical.** The
> placement of a load cell in the steelyard rod to change from a
> mechanical to an electronic indicator is an acceptable modification of
> type that does not require evaluation for an existing CC to apply~~;
> however, the modification option must be listed on the NTEP CC~~.

*(There are no recommendations to amend the remaining paragraphs in
Section E)*

[]{#__RefHeading___Toc58813069 .anchor}**18. Physical Security Seals on
Scales with External Calibration Capability.**

**Source:** NTEP Participating Laboratories

**Background:** At the 2003 NTEP Participating Laboratory Meeting, many
of the participating labs reported they have come across examples where
a device could be sealed with a physical security seal while the device
had been configured with access to external means to change calibration
and configuration parameters. The labs have been using Handbook 44
General Code paragraph G-S.2. Facilitation of Fraud to require the
applicant to correct this problem.

One laboratory reported that it had to accept this because the applicant
stated that "if the operator had followed the operating instructions,
this would not happen". Furthermore, the applicant cited Handbook 44
General Code paragraph G‑UR.3.1 Method of Operation that states:

> **G-UR.3.1 Method of Operation.** - Equipment shall be operated in the
> manner that is obviously indicated by its construction or that is
> indicated by instructions on the equipment.

It was pointed out that Handbook 44 General Code paragraph G-S.8.
Provision for Sealing Adjustable Components. and Scale Code paragraph
S.1.11. Provision for Sealing. state that provisions shall be made for
applying a security seal in a manner that requires **the security seal
to be broken before an adjustment can be made to any component affecting
the performance of an electronic device**. The participating
laboratories believe that external access to the calibration or
configuration parameters without breaking a security seal or advancing
the event counters does not comply with Handbook 44 regardless of the
operator instruction manuals.

Some labs stated that there should be something in Publication 14 that
tells the evaluator to look for ways to access the calibration or
configuration parameters without breaking a security seal or advancing
the event counters. Alternatively, Handbook 44 could be amended to make
it clear that the device provide an indication that it is in the
calibration mode.

This was considered an appropriate subject for the joint LMD and
Weighing Sectors discussion since it involves all devices.

It was also noted that Publication 14, Section 10.10 - Category 1
Devices does not go into detail regarding compliance with Handbook 44
references. Existing language only asks if the device is sealable with a
physical seal (Y/N/NA) or equipped with two event counters. Publication
14 does not ask the evaluator to verify if the physical seal is
effective (Reference G.S.8. and S.1.11.a.).

The NTEP weighing laboratories recommended a proposal be developed and
submitted to the NCWM S&T Committee to amend the language for Category 1
devices to require a device to clearly indicate it is in the calibration
mode and record such message if capable of printing in this mode
(similar to the requirement for Category 2 devices). The language should
be consistent with the language used for Category 2 devices.
Additionally, the laboratories developed language changing the "notes"
on physical seals into a checklist format and suggested additional
language requiring the physical seal be "effective." The laboratories
further recommended the Sector review and recommend the checklist
language be added to Publication 14, paragraphs 10.10 to assure NTEP
evaluators physical seals are verifiably effective.

**Discussion:** The Weighing Sector discussed the amendments to
Publication 14 recommended by the participating laboratories. The
manufacturers present were concerned the term "effective" in proposed
paragraph 10.14 is vague and should be more definitive. There was also
discussion about the effective date for new language in proposed
paragraph 10.14 be effective one year after its incorporation into
Publication 14. There was also a suggestion to amend Handbook 44 Method
of Sealing for Category 1 weighing devices to require the device to
clearly indicate when it is in the "set‑up mode." It was reported that
there was a commitment from Will Wotthlie (Maryland Measuring Sector
laboratory) to submit a proposal to the Southern Weights and Measures
Association at its 2003 annual meeting.

**Conclusion:** The Sector supports the interpretation of Handbook 44
General Code paragraphs G-S.2 Facilitation of Fraud, G-S.8. Provision
for Sealing Adjustable Components, and Scale Code paragraph S.1.11.
Provision for Sealing that provisions shall be made for applying a
security seal in a manner that requires the security seal to be broken
before an adjustment can be made to any component affecting the
performance of an electronic device regardless of instructions provided
in the instruction/service manual for the device. The Sector further
agreed to support the concept of the proposal to amend Handbook 44
Category 1 Method of Sealing to require a device clearly indicate that
it is in the set-up mode.

The Sector also recommended the following amendments to Publication 14,
section 10. The language proposed by the laboratories and amended by the
Sector was given a 2005 effective date to allow NTEP applicants not in
attendance sufficient time to comply with the new checklist
requirements.

  --------------------------- ------------------------------------------------- -------------------------
  [Physical Seals --                                                            
  General]{.underline}                                                          
  **(***Note: **[Single                                                         
  underlined                                                                    
  text]{.underline} was                                                         
  copied from the "Notes on                                                     
  Physical Seals." Double                                                       
  underlined text is language                                                   
  recommended by the weighing                                                   
  laboratories.** [Bold                                                         
  single underlined and                                                         
  italics text]{.underline}                                                     
  **represents language added                                                   
  to the laboratory proposed                                                    
  language by the                                                               
  Sector.*****)**                                                               

  [10.11]{.underline}         [The provision for sealing must be located such   [Yes]{.underline}
                              that a security seal can be applied without       [No]{.underline}
                              disassembly that exposes electronics. Any         [NA]{.underline}
                              disassembly must be simple and not require        
                              excessive effort; for example, removing a         
                              protective cover plate to seal a junction box is  
                              acceptable. In general, it is desirable to be     
                              able to seal a device without the need for        
                              disassembly.]{.underline}                         

  [10.12]{.underline}         [A scale shall be sealed in a manner that         [Yes]{.underline}
                              prevents disassembly of the device by removing a  [No]{.underline}
                              cover or cabinet to gain access to the            [NA]{.underline}
                              adjustments.]{.underline}                         

  [10.13]{.underline}         [The bottom of a device is an acceptable location [Yes]{.underline}
                              for a security seal only if the scale is designed [No]{.underline}
                              so that it is not damaged when turned on its side [NA]{.underline}
                              or upside down to remove and apply security       
                              seals.]{.underline}                               

  ~~10.14~~                   ~~The physical (wire and lock or self-destructive ~~[Yes]{.underline}~~
                              pressure sensitive) security seal shall be        ~~[No]{.underline}~~
                              effective to prevent external access to           ~~[NA]{.underline}~~
                              calibration means without breaking or damaging    
                              the security seal.~~                              

  *10.14*                     ***[Access to the sealable parameters is          ***[Yes]{.underline}***
                              prevented without destroying the physical seal    ***[No]{.underline}***
                              (for devices that incorporate a physical seal to  ***[NA]{.underline}***
                              protect adjustments of sealable parameters)       
                              (Effective January 1, 2005).]{.underline}***      

  [10.15]{.underline}         [When two bolts are used for a lock and wire      [Yes]{.underline}
                              security seal, the bolts must be such that the    [No]{.underline}
                              lock and wire security seal will be broken when   [NA]{.underline}
                              an attempt is made to unscrew the bolts. The use  
                              of a \"free-standing bolt\" to serve as a second  
                              screw for threading a lock and wire security seal 
                              is not acceptable. A \"free-standing bolt\" is    
                              one that simply passes through a panel and is     
                              held in place by a nut on the opposite side of    
                              the panel but is not holding any parts together.  
                              Because the free-standing screw may be loosened   
                              to the extent that the bolt will rotate in its    
                              position, this permits the other bolt to be       
                              turned and the wire of the seal maneuvered over   
                              the top of the bolt while turning the             
                              free-standing bolt to keep the wire from          
                              twisting. In this case, the security seal can be  
                              removed to gain access to the adjustments without 
                              breaking the seal.]{.underline}                   

  [10.16]{.underline}         [In lieu of the second fixed bolt, a metal tab    [Yes]{.underline}
                              fixed to the case or a plastic tab molded into    [No]{.underline}
                              the case may be used. The fixed nature of the tab [NA]{.underline}
                              usually causes in the wire to twist and break     
                              before the bolt can be removed.]{.underline}      

  [10.17]{.underline}         [If the lock and wire security seal is located    [Yes]{.underline}
                              under the platform of a scale, then there must be [No]{.underline}
                              ample clearance to eliminate the possibility of   [NA]{.underline}
                              interference between the seal and the             
                              platform.]{.underline}                            

  [10.18]{.underline}         [An indicating element that uses a NEMA 4         [Yes]{.underline}
                              enclosure shall be sealed in a manner that        [No]{.underline}
                              prevents the seal from being circumvented. This   [NA]{.underline}
                              may be achieved by threading a lock and wire      
                              security seal through the head of the bolt        
                              through one of the hinges and the lip of the      
                              cover of the indicator. It is not sufficient for  
                              a lock and wire security seal to be threaded      
                              through the head of the bolt and the opening in   
                              the hinge because it can be circumvented by       
                              loosening the screw slightly and pressing down on 
                              the cover to compress the sealing material and    
                              slipping the hinge off the cover.]{.underline}    

  ***[10.19]{.underline}***   ***[The scale shall must clearly indicate it is   ***[Yes]{.underline}***
                              in the set-up (calibration or configuration)      ***[No]{.underline}***
                              mode, such as indicators, error message, or other ***[NA]{.underline}***
                              means of indication that cannot be interpreted as 
                              legal weight values (Effective January 1,         
                              2005).]{.underline}***                            

  *Renumber remaining                                                           
  paragraphs and delete the                                                     
  "Notes on Physical Seals."*                                                   
  --------------------------- ------------------------------------------------- -------------------------

[]{#__RefHeading___Toc58813070 .anchor}**19. Screen Savers on Electronic
Cash Registers and Point-of-Sale Systems.**

**Source:** Mettler Toledo

Background: See Item 11 of the 2002 Weighing Sector Meeting Summary
(Screen Savers on Electronic Cash Registers and Point-of-Sale Systems)
for additional background information.

During the 2002 Sector meeting, a vote was taken to decide if labeling
is required on a weighing device (scale), independent of an ECR, that
defines the "other than continuous zero indication" when the scale uses
a scrolling message to indicate gross zero. The vote was in favor of
adding the labeling requirement and the additional wording was
subsequently added to Publication 14 2003 Edition in the Digital
Electronic Scales section and associated checklist.

Mettler Toledo recommends the labeling requirement in Publication 14
2003 Edition be deleted. Handbook 44 Scales Code paragraph S.1.1.c. Zero
Indication. permits a zero-balance indication "by other than a
continuous digital zero indication, provided that an effective automatic
means is provided to inhibit a weighing operation or return to a
continuous digital indication when the scale is in an out-of-balance
condition." There is no labeling requirement in the Scale Code section
of Handbook 44.

There is no risk to the consumer if the approved device meets the
performance requirements of Publication 14, 2002 Edition, Section 11.12.
Specifically, it should be considered acceptable if the device
automatically displays weight values when the device goes into an
out-of-balance condition. A device that is properly designed by the
manufacturer and properly evaluated during the type evaluation process
will inherently provide protection to the consumer.

1.  The labeling requirement adds cost to the device manufacturer but
    adds no benefit to the consumer. As a manufacturer, Mettler Toledo
    opposes additional labeling requirements. The goal is to meet the
    requirements by design, not by adding labels.

Mettler Toledo has proposed that the wording in Publication 14:2003 be
changed as follows:

> 1\. Section 11.8.4: delete the fifth paragraph, including the
> reference to G-S.6. Reference to G-S.6 is not appropriate since "the
> specific code requirements supercede General Code requirements in all
> cases of conflict" per G-A.2.
>
> 2\. Section 11.8.4, box #4
>
> Activation of the sleep or battery/power save mode only turns off the
> primary weight display or the primary weight display is replaced by
> scrolling messages or dashes. ~~The method of indicating a zero
> balance condition must be clearly defined as the zero indication as
> required by General Code paragraph G.S.6~~ ~~Marking Operational
> Controls, Indications, and Features. The legend must state, "Scrolling
> messages indicate scale is at zero" or similar statement.~~
>
> 3\. Section 11.8.4.2,
>
> ~~If the primary weight display disappears in the screen saver/sleep
> mode with the scale at zero and the power to the scale is not
> automatically shut off, the display must comply with (a) or (b)
> below:~~
>
> ~~(a) The zero indication or zero annunciator must be displayed, or
> defined if zero is indicated by other than a digital zero indication
> or annunciator. Yes □ No □ N/A □~~
>
> ~~If a legend is used to define zero, it must be included adjacent to
> the display to indicate that the information (dashes, scrolling
> messages, and etc.) indicate the scale is on zero. Yes □ No □ N/A □~~
>
> The screen saver/sleep mode shall be deactivated and the continuous
> weight display automatically returns under the following conditions
> unless means are provided to inhibit a weighing transaction until the
> scale has returned to a digital zero indication:
>
> The scale drifts above zero Yes No NA
>
> Weight is added to the scale Yes No NA
>
> The scale drifts below zero Yes No NA
>
> The scale is in an overcapacity condition. Yes No NA
>
> \(b\) Means are provided to inhibit a weighing transaction until the
> operator has returned the scale to a digital zero indication. Yes No
> NA
>
> Add 11.8.4.3
>
> 11.8.4.3. Put the device into a net-zero mode by placing a small
> weight on the platform and taking a tare (push button tare) or by
> entering a keyboard tare and then placing an equivalent load on the
> platform. Confirm that the device will not go into a screen saver
> mode. Yes No NA

There is still a disagreement among NIST, regulators, and manufacturers
concerning Handbook 44 Scales Code paragraph S.1.1. Zero Indication. and
the interpretation of the discussion included in the 78^th^ NCWM
Specifications and Tolerances (S&T) Committee Item 320-1. This has
resulted in inconsistent evaluations and weights and measures
enforcement of scales and point‑of‑sale systems interfaces with scales
that use methods such as screen saver, power saver, scrolling display,
and modes of operation to indicate that a device is at a no-load
condition.

In 1976, the 61^st^ NCWM adopted paragraph G-S.6. Marking Operational
Controls, Indications, and Features. In addition to a discussion on the
marking of operator instructions, the discussion of the subject included
a statement that there was "also a problem for customers to determine
that those devices used in direct sales are being properly operated, and
for weights and measures officials when encountering this equipment in
the field for the first time."

NIST and some of the participating laboratories have stated that a
weighing device shall be marked or an indication provided that states
zero is represented by other than a digital zero (e.g., if a zero
enunciator is provided, scale is marked with statements such as "scale
at zero" or "scrolling message indicates the scale is at zero). The
customer must be provided adequate information (zero, net weight, unit
price, and price to pay) to determine the validity of the transaction
and make a determination to accept the transaction. (Note: The NIST
technical advisor is not aware of customer complaints or concerns about
a lack of a "digital zero" indication on scales and is interested if
there have been issues raised from field officials and the public.)

The following Handbook 44 General Code paragraphs have been adopted for
the purpose of providing customers with enough information to make an
informed decision to accept a weighing transaction:

> General Code
>
> G-S.5.2.2.(d) Digital Indication and Representation
>
> G-S.6. Marking Operational Controls, Indications and Features
>
> G-UR.3.3. Position of Equipment
>
> Scale Code
>
> S.1. Design of Indicating and Recording Elements and of Recorded
> Representation
>
> S.1.4. Indicators.
>
> S.1.8.3. Customer Indications., S.1.12. Manual Gross Weight Entries.

The following is from the Report of the 78^th^ of the NCWM Annual
Meeting, S&T Committee Item 320-1 S.1.1. Zero Indication:

> **Discussion:** Scale manufacturers are designing scales with
> indications for zero other than a digital representation. Alternative
> indications may be a zero annunciator, a series of sequencing dashes
> moving across the display, or a scrolling message moving across the
> customer display. These latter indications must be clearly defined on
> the device as the zero indication as required by General Code
> paragraph *G-S.6. Marking Operational Controls, Indications, and
> Features*.
>
> When a shared weight display was incorporated into a point-of-sale
> scanner scale in 1986 and 1987, many Conference members had serious
> reservations about the absence of a digital zero indication. Since
> that time, weights and measures officials appear to have become much
> more comfortable with devices having zero indications other than the
> digital zero. **Comments submitted to the Committee indicate that
> weights and measures officials are willing to accept alternative forms
> for indicating the zero balance condition if clearly defined.**
>
> Consequently, the Committee recommends all scales be permitted to
> indicate the zero balance condition by means other than a digital zero
> indication; however, scales using other than a digital zero indication
> for the zero-balance condition must either inhibit the weighing
> operation or return to a continuous digital weight indication when the
> scale is no longer at zero. ***(S. Cook NOTE: There is no reference to
> markings or annunciators)*** This alternative is also extended to
> point-of-sale systems, as indicated by deleting the qualifying phrase
> at the beginning of S.1.1.(c), which previously restricted part (c) to
> point-of-sale systems.

**Discussion:** The Weighing Sector reviewed the above discussion.
Manufacturers provided additional input that there have been no customer
complaints on scales with "other than digital zero indications" without
additional markings or annunciators. They further state additional
markings are not needed because customers are adequately protected by
existing language in Handbook 44. It was also noted that
customer-operated devices where the "automated" process helps ensure
proper operation protect the customer more than additional markings.

The Sector discussed asking the NCWM S&T Committee for clarification
regarding the applicability of marking requirements in General Code
paragraph G-S.6. Marking Operational Controls, Indications and Features
to "other than digital zero indication" in Scales Code paragraph
S.1.1.(c). The Sector considered recommending amended language in
S.1.1.(c) to specifically state the intent of the 78^th^ NCWM S&T
Committee. The Sector also considered the following language to amend
Handbook 44 drafted by the NIST technical advisor:

> **S.1.1. Zero Indication.**

(c) A zero-balance condition may be indicated by other than a continuous
    digital zero indication, provided that an effective automatic means
    is provided to inhibit a weighing operation or to return to a
    continuous digital indication when the scale is in an out-of-balance
    condition [and is marked or includes supplemental indications or
    markings to indicate that the "other than digital zero indication"
    represents a no-load condition of the scale]{.underline}.

***OR***

(d) A zero-balance condition may be indicated by other than a continuous
    digital zero indication [without additional marking or
    indications]{.underline}, provided that an effective automatic means
    is provided to inhibit a weighing operation.

**Conclusion:** The Sector agreed that NTEP can evaluate the
requirements in Handbook 44 Scales Code paragraph S.1.1.(c) and verify
that the "other than digital zero indication" prevents the weighing
operation if the scale is in an out‑of‑balance condition. No consensus
was reached on additional marking requirements and interpretation of
past S&T Committee reports. The Sector requested that the NIST technical
advisor ask for a clarification of the past S&T Committee reports and
that Handbook 44 be amended to clearly state the intention of the
Committee through the NIST S&T Committee technical advisors. The Sector
also requested the NIST technical advisor provide the S&T Committee the
above suggested language for Handbook 44 Scales Code paragraph S.1.1.(c)
that is consistent with their interpretation of the past S&T Committee
reports.

After the 2003 Sector meeting, the NIST technical advisor to the
Weighing Sector submitted the request to the S&T Committee for
clarification and requested the S&T Committee technical advisors amend
NIST Handbook 44 Scales Code paragraph S.1.1.(c) to include the
above-suggested language.

The NIST S&T Committee technical advisors balloted the Committee to: (1)
confirm the intent of the past NCWM S&T discussions that additional
markings or indications are required for weighing devices that indicate
a zero balance other than by digital indication; and (2) amend S.1.1.(c)
by adding language consistent with the NIST interpretation of General
Code paragraph G-S.6 and Scales Code paragraph S.1.1.(c). The Committee
agreed additional markings or indications are required for weighing
devices that indicate a zero balance other than by digital indication,
and the S&T Committee agreed to add a proposal to amend Scales Code
paragraph S.1.1.(c) to its 2004 NCWM Interim Agenda.

20. []{#__RefHeading___Toc58813071 .anchor}**Clarification of G-S.1.
    Identification (software)**

The item was incorrectly identified in the agenda as an editorial
recommendation on language adopted by the Conference at the 88^th^ NCWM
Annual Meeting, in July 2003. It was intended to amend 2003 NCWM S&T
Agenda Item 310-1b. Additionally, this item was combined with the
discussion of the following Weighing Sector Agenda Item 21.

[]{#__RefHeading___Toc58813072 .anchor}21. G-S.1. Identification;
Built-for-Purpose Software-Based Devices

**Source:** SMA and NCWM Specifications and Tolerance Committee

**Background/Discussion:** At the 2003 NCWM Annual Meeting, the
Conference voted to adopt alternate methods of compliance with
identification requirements for "not-built-for-purpose devices. The
Committee received comments that similar alternate methods of
identification be developed for "built-for-purpose" devices. The
Committee agreed there appears to be no opposition to allowing the same
alternate methods for providing required identification markings on
Built-for-Purpose Software-Based Devices in a manner similar to that
proposed for Not-Built-for-Purpose devices. The Committee believes the
SMA proposal needs to be an information item to allow for further review
and development by the NTETC Weighing and Measuring Sectors and the
Regional Associations.

The Weighing Sector was asked to review, comment, or make
recommendations to further develop language submitted by the Scale
Manufacturers Association to the NTETC Measuring Sector and the NCWM
Specifications and Tolerances Committee.

> G-S.1. Identification. -- All equipment, except weights and separate
> parts necessary to the measurement process, but not having any
> metrological effect, shall be clearly and permanently marked for the
> purposes of identification ~~with the following information~~. [The
> required information shall be so located that it is readily observable
> without the necessity of the disassembly of a part requiring the use
> of any means separate from the device. (Amended 1985, 1991, 1999 and
> 2000)]{.underline}
>
> [G-S.1.1. Required Information. Equipment utilizing a plate or badge
> for identification must be permanently marked with the following
> information:]{.underline}
>
> \(a\) the name, initials, or trademark of the manufacturer or
> distributor;
>
> \(b\) model designation positively identifying the pattern or design
> of the device;
>
> *(c) the model designation shall be prefaced by the term \"Model,\"
> \"Type,\" or \"Pattern.\" These terms may be followed by the term
> \"Number\" or an abbreviation of that word. The abbreviation for the
> word \"Number\" shall, as a minimum, begin with the letter \"N\"
> (e.g., No or No.). The abbreviation for the word "Model" shall be
> "Mod" or "Mod."*
>
> *\[Nonretroactive January 1, 2003\]*
>
> (Added 2000) (Amended 2001)
>
> *\[Note: Prefix lettering may be initial capitals, all capitals or all
> lower case.\]*
>
> *(d) except for equipment with no moving or electronic component
> parts, a nonrepetitive serial number;\[Nonretroactive as of January 1,
> 1968\]*
>
> *(e) the serial number shall be prefaced by words, an abbreviation, or
> a symbol, that clearly identifies the number as the required serial
> number; and*
>
> *\[Nonretroactive as of January 1, 1986\]*
>
> *(f) the serial number shall be prefaced by the words \"Serial
> Number\" or an abbreviation of that term. Abbreviations for the word
> \"Serial\" shall, as a minimum, begin with the letter \"S,\" and
> abbreviations for the word \"Number\" shall, as a minimum, begin with
> the letter \"N\" (e.g., S/N, SN, Ser. No, and S No.)*
>
> *\[Nonretroactive as of January 1, 2001\]*
>
> *(g) For devices that have an NTEP Certificate of Conformance (CC)
> Number or a corresponding CC addendum number, the NTEP CC shall be
> prefaced by the terms \"NTEP CC,\" \"CC,\" or \"Approval.\" These
> terms may be followed by the term \"Number\" or an abbreviation of
> that word. The abbreviation for the word \"Number\" shall, as a
> minimum, begin with the letter \"N\" (e.g., No or No.)*
>
> *\[Nonretroactive as of January 1, 2003\]*
>
> ~~The required information shall be so located that it is readily
> observable without the necessity of the disassembly of a part
> requiring the use of any means separate from the device. (Amended
> 1985, 1991, 1999 and 2000)~~
>
> *[G-S.1.2. For built-for-purpose, software- based devices ~~with
> display capability~~, the following shall apply:]{.underline}*
>
> *~~[(a) the manufacturer or distributor and the model designation be
> continuously displayed or marked on the device\*, or]{.underline}~~*
>
> *~~[(b) the Certificate of Conformance (CC) Number be continuously
> displayed or marked on the device\*, or]{.underline}~~*
>
> *~~[(c) all required information in G-S.1.1. Identification. (a), (b),
> (c), (e), and (h) be continuously displayed. Alternatively, a clearly
> identified System Identification, G-S.1. Identification, or Weights
> and Measures Identification shall be accessible through the
> "Help"menu. Required information includes that information necessary
> to identify that the software in the device is the same type that was
> evaluated.]{.underline}~~*
>
> *~~[\*Clear instructions for accessing the remaining required G-S.1.1.
> information shall be listed on the CC. Required information includes
> that information necessary to identify that the software in the device
> is the same type that was evaluated. \[Nonretroactive as of January 1,
> 200X\]]{.underline}~~*
>
> *[(a) All information defined in G-S.1.1. shall be either marked on
> the unit or continuously displayed. Alternative markings
> are:]{.underline}*
>
> *[1. the manufacturer or distributor name and the model number,
> or]{.underline}*
>
> *[2. the Certificate of Conformance (CC) Number, provided that access
> to the remaining G-S.1.1. information is available through the "Help"
> key or clear instructions are listed on the CC.]{.underline}*
>
> *[(b) Information necessary to identify the software in the device is
> the same type that was evaluated.]{.underline}*
>
> *[G-S.1.3. For not-built-for-purpose, software-based devices, the
> following shall apply:]{.underline}*
>
> *[(a) All information defined in G-S.1.1.(a), (b), (c) and (g) shall
> be either marked on the unit or continuously displayed. Alternative
> marking requirements are:]{.underline}*
>
> *[1. the manufacturer or distributor name and the model number
> or]{.underline}*
>
> *[2. the Certificate of Conformance (CC) Number.]{.underline}*
>
> *[Provided access to the remaining required G-S.1.1. information is
> available through the "Help" key or clear instructions are listed on
> the CC.]{.underline}*
>
> G-S.1.~~13~~4. Remanufactured Devices and Remanufactured Main
> Elements.

The above changes lead to the requirement of the following new
definition:

> *[Not-built-for-purpose device. Any main device or element which was
> not originally manufactured with the intent it be used as, or part of,
> a weighing or measuring device or system.]{.underline}*

Additionally, Hobart Corporation submitted the following alternate
language to clarify the proposal submitted by the SMA during the 2003
NCWM Interim Meeting.

> **G-S.1. Identification.** - All equipment, except weights and
> separate parts necessary to the measurement process but not having any
> metrological effect, shall be clearly and permanently marked for the
> purposes of identification with the following information:
>
> \(a\) the name, initials, or trademark of the manufacturer or
> distributor;
>
> \(b\) a model designation positively identifying the pattern or design
> of the device;
>
> \(c\) *the model designation shall be prefaced by the term \"Model,\"
> \"Type,\" or \"Pattern.\" These terms may be followed by the term
> \"Number\" or an abbreviation of that word. The abbreviation for the
> word \"Number\" shall, as a minimum, begin with the letter \"N\"
> (e.g., No or No.). The abbreviation for the word \"Model\" shall be
> \"Mod\" or \"Mod.\"*
>
> *\[Nonretroactive January 1, 2003\]*
>
> (Added 2000) (Amended 2001)
>
> *\[Note: Prefix lettering may be initial capitals, all capitals or all
> lower case.\]*
>
> *(d) except for equipment with no moving or electronic component parts
> and ~~not built-for-purpose, software-based devices~~, a nonrepetitive
> serial number;*
>
> *\[Nonretroactive as of January 1, 1968\]*
>
> *~~(e) for not built-for-purpose, software-based devices the current
> software version designation;~~*
>
> *(e) the serial number shall be prefaced by words, an abbreviation, or
> a symbol, that clearly identifies the number as the required serial
> number; and*
>
> *\[Nonretroactive as of January 1, 1986\]*
>
> *(f) the serial number shall be prefaced by the words \"Serial
> Number\" or an abbreviation of that term. Abbreviations for the word
> \"Serial\" shall, as a minimum, begin with the letter \"S,\" and
> abbreviations for the word \"Number\" shall, as a minimum, begin with
> the letter \"N\" (e.g., S/N, SN, Ser. No, and S No.).*
>
> *\[Nonretroactive as of January 1, 2001\]*
>
> *(g) For devices that have an NTEP Certificate of Conformance (CC)
> Number or a corresponding CC addendum number, the NTEP CC shall be
> prefaced by the terms \"NTEP CC,\" \"CC,\" or \"Approval.\" These
> terms may be followed by the term \"Number\" or an abbreviation of
> that word. The abbreviation for the word \"Number\" shall, as a
> minimum, begin with the letter \"N\" (e.g., No or No.)*
>
> *\[Nonretroactive as of January 1, 2003\]*
>
> *[**(h) Software-based devices, including a method to identify the
> software in the device is the same type that was evaluated by NTEP, do
> not require individual serial numbers as specified in (d), (e), and
> (f) above.**]{.underline}*
>
> *[The required information shall**:**]{.underline}*

(a) *[be so located that it is readily observable without the necessity
    of the disassembly of a part requiring the use of any means separate
    from the device ,or]{.underline}*

> *[(b) be accessed **through the \"Help\" menu by a clearly identified
> system identification, G-S.1. Identification, or Weights and Measures
> identification.**]{.underline}*
>
> The required information shall be so located that it is readily
> observable without the necessity of the disassembly of a part
> requiring the use of any means separate from the device.
>
> (Amended 1985, 1991, 1999 and 2000)
>
> Delete Paragraph *G-S.1.1. Not-Built-For-Purpose, Software-Based
> Devices.*

Additionally, the NIST S&T technical advisors have developed alternate
language (in a different format) applicable to the minimum information
needed to verify G-S.1. Identification. Requirements. The following
alternate language was to be distributed at the Sector meeting.

> **G-S.1. Identification.** - All equipment, except weights and
> separate parts necessary to the measurement process but not having any
> metrological effect, shall be clearly marked in accordance with Table
> G-S.1. for the purposes of identification with the following
> information:
>
> \(a\) the name, initials, or trademark of the manufacturer or
> distributor;
>
> \(b\) a model designation positively identifying the pattern or design
> of the device;
>
> \(c\) *the model designation shall be prefaced by the term \"Model,\"
> \"Type,\" or \"Pattern.\" These terms may be followed by the term
> \"Number\" or an abbreviation of that word. The abbreviation for the
> word \"Number\" shall, as a minimum, begin with the letter \"N\"
> (e.g., No or No.). The abbreviation for the word "Model" shall be
> "Mod" or "Mod."*
>
> *\[Nonretroactive January 1, 2003\]*
>
> (Added 2000) (Amended 2001)
>
> ***\[Note:** Prefix lettering may be initial capitals, all capitals or
> all lower case.\]*
>
> *(d) except for equipment with no moving or electronic component parts
> and not-built-for-purpose, [microprocessor]{.underline}-based devices,
> a nonrepetitive serial number;*
>
> *\[Nonretroactive as of January 1, 1968\]*
>
> *for [microprocessor]{.underline}-based devices the current software
> [designation or revision number]{.underline};*
>
> *(f) the serial number shall be prefaced by words, an abbreviation, or
> a symbol, that clearly identifies the number as the required serial
> number; and*
>
> *\[Nonretroactive as of January 1, 1986\]*
>
> *(g) the serial number shall be prefaced by the words \"Serial
> Number\" or an abbreviation of that term. Abbreviations for the word
> \"Serial\" shall, as a minimum, begin with the letter \"S,\" and
> abbreviations for the word \"Number\" shall, as a minimum, begin with
> the letter \"N\" (e.g., S/N, SN, Ser. No, and S No.).*
>
> *\[Nonretroactive as of January 1, 2001\]*
>
> *(h) For devices that have an NTEP Certificate of Conformance (CC)
> Number or a corresponding CC addendum number, the NTEP CC shall be
> prefaced by the terms \"NTEP CC,\" \"CC,\" or \"Approval.\" These
> terms may be followed by the term \"Number\" or an abbreviation of
> that word. The abbreviation for the word \"Number\" shall, as a
> minimum, begin with the letter \"N\" (e.g., No or No.)*
>
> *\[Nonretroactive as of January 1, 2003\]*
>
> The required information shall be so located that it is readily
> observable without the necessity of the disassembly of a part
> requiring the use of any means separate from the device.
>
> (Amended 1985, 1991, 1999, 2000 and 200X)

+----+--------------------------------+--------------+----------------+
| T  |                                |              |                |
| ab |                                |              |                |
| le |                                |              |                |
| G- |                                |              |                |
| S. |                                |              |                |
| 1. |                                |              |                |
| Id |                                |              |                |
| en |                                |              |                |
| ti |                                |              |                |
| fi |                                |              |                |
| ca |                                |              |                |
| ti |                                |              |                |
| on |                                |              |                |
+----+--------------------------------+--------------+----------------+
|    |                                | Built        | Not            |
|    |                                | -for-Purpose | Bui            |
|    |                                |              | lt-for-Purpose |
|    |                                | Instruments, |                |
|    |                                | Elements, or | Instruments,   |
|    |                                | Systems      | Elements, or   |
|    |                                |              | Systems        |
+----+--------------------------------+--------------+----------------+
| N  |                                | M            | DC^2^ or DA    |
| am |                                |              |                |
| e, |                                |              |                |
| i  |                                |              |                |
| ni |                                |              |                |
| ti |                                |              |                |
| al |                                |              |                |
| s, |                                |              |                |
| or |                                |              |                |
| t  |                                |              |                |
| ra |                                |              |                |
| de |                                |              |                |
| ma |                                |              |                |
| rk |                                |              |                |
| of |                                |              |                |
| t  |                                |              |                |
| he |                                |              |                |
| m  |                                |              |                |
| an |                                |              |                |
| uf |                                |              |                |
| ac |                                |              |                |
| tu |                                |              |                |
| re |                                |              |                |
| or |                                |              |                |
| d  |                                |              |                |
| is |                                |              |                |
| tr |                                |              |                |
| ib |                                |              |                |
| ut |                                |              |                |
| or |                                |              |                |
+----+--------------------------------+--------------+----------------+
| M  |                                | M^1^         | DC^2^ or DA    |
| od |                                |              |                |
| el |                                |              |                |
| de |                                |              |                |
| si |                                |              |                |
| gn |                                |              |                |
| at |                                |              |                |
| io |                                |              |                |
| n^ |                                |              |                |
| 1^ |                                |              |                |
+----+--------------------------------+--------------+----------------+
| Sp |                                | M, DC, or DA |                |
| ec |                                |              |                |
| if |                                |              |                |
| ic |                                |              |                |
| m  |                                |              |                |
| od |                                |              |                |
| el |                                |              |                |
| de |                                |              |                |
| si |                                |              |                |
| gn |                                |              |                |
| at |                                |              |                |
| io |                                |              |                |
| n^ |                                |              |                |
| 1^ |                                |              |                |
+----+--------------------------------+--------------+----------------+
| Se |                                | M            | Not required   |
| ri |                                |              |                |
| al |                                |              |                |
| nu |                                |              |                |
| mb |                                |              |                |
| er |                                |              |                |
+----+--------------------------------+--------------+----------------+
| Re |                                | DC or DA     | DC or DA       |
| vi |                                |              |                |
| si |                                |              |                |
| on |                                |              |                |
| nu |                                |              |                |
| mb |                                |              |                |
| er |                                |              |                |
| or |                                |              |                |
| So |                                |              |                |
| ft |                                |              |                |
| wa |                                |              |                |
| re |                                |              |                |
| V  |                                |              |                |
| er |                                |              |                |
| si |                                |              |                |
| on |                                |              |                |
| nu |                                |              |                |
| mb |                                |              |                |
| er |                                |              |                |
+----+--------------------------------+--------------+----------------+
| C  |                                | M, DC, or DA | DC^2^, DA,     |
| er |                                |              |                |
| ti |                                |              |                |
| fi |                                |              |                |
| ca |                                |              |                |
| te |                                |              |                |
| of |                                |              |                |
| C  |                                |              |                |
| on |                                |              |                |
| fo |                                |              |                |
| rm |                                |              |                |
| an |                                |              |                |
| ce |                                |              |                |
| (C |                                |              |                |
| C) |                                |              |                |
| nu |                                |              |                |
| mb |                                |              |                |
| er |                                |              |                |
+----+--------------------------------+--------------+----------------+
| M: | Physically and permanently     |              |                |
|    | marked                         |              |                |
+----+--------------------------------+--------------+----------------+
| D  | Continuously displayed         |              |                |
| C: |                                |              |                |
+----+--------------------------------+--------------+----------------+
| D  | Displayed by accessing a       |              |                |
| A: | clearly identified \"view      |              |                |
|    | only\" system identification,  |              |                |
|    | G-S.1. Identification, or      |              |                |
|    | Weights and Measures           |              |                |
|    | identification accessible      |              |                |
|    | through the "Help" menu.       |              |                |
|    | Required information includes  |              |                |
|    | that information necessary to  |              |                |
|    | identify that the software in  |              |                |
|    | the device is the same type    |              |                |
|    | that was evaluated.            |              |                |
+----+--------------------------------+--------------+----------------+
| No | As a minimum, the model        |              |                |
| te | designation (positively        |              |                |
| 1: | identifying the pattern,       |              |                |
|    | design, type, series, generic, |              |                |
|    | or trademark designation) must |              |                |
|    | be marked on the device. If    |              |                |
|    | the model designation changes  |              |                |
|    | with differing parameters such |              |                |
|    | as size, features, options,    |              |                |
|    | intended application, not      |              |                |
|    | Handbook 44 compliant,         |              |                |
|    | construction, etc., the        |              |                |
|    | specific model designation     |              |                |
|    | shall be physically marked or  |              |                |
|    | continuously displayed or be   |              |                |
|    | capable of being displayed.    |              |                |
+----+--------------------------------+--------------+----------------+
| No | As a minimum, either the       |              |                |
| te | manufacturer or distributor    |              |                |
| 2: | and the model designation, or  |              |                |
|    | the CC Number shall be         |              |                |
|    | continuously displayed. Clear  |              |                |
|    | instructions for accessing the |              |                |
|    | remaining required             |              |                |
|    | G-S.1.information shall be     |              |                |
|    | listed on the CC, which may be |              |                |
|    | available as an unaltered copy |              |                |
|    | of the CC printed by the       |              |                |
|    | device or through another      |              |                |
|    | on-site device.                |              |                |
+----+--------------------------------+--------------+----------------+

**Discussion/Conclusion:** There were comments from several Sector
members that the NCWM S&T Committee should address this item. It was
pointed out to the Sector that the concept of allowing the display of
G-S.1. Identification information originated from both the NTETC
Weighing and Measuring Device Sectors and that the 2003 NCWM S&T
Committee requested input from the both Sectors. Members of the SMA
technical committee noted that they are continuing to develop language
that applies equally to built-for and not-built-for-purpose devices and
no longer support the language originally submitted at the 2003 NCWM
Interim meeting. The Sector did not discuss the alternate proposal from
NIST/WMD because they did not have sufficient time to review and discuss
the new proposal.

The Sector agreed to make no recommendations on this item.

22. []{#__RefHeading___Toc58813073 .anchor}**Publication 14 DES Section
    8, Family Definition and Selection Criteria for Vehicle Scales,
    Railway- Track Scales, Combination Vehicle/Railway-Track Scales, and
    Other Platform Scales over 30 000 lb and up to and including 200 000
    lb.**

**Source:** Nebraska

**Background:** The Nebraska NTEP participating laboratory has reported
the parameters for large scales have been a source of confusion and
misinterpretation. Additionally, the lower limits for size and capacity
are not based on technical and design considerations. Nebraska submitted
the following proposal for consideration by the Sector.

Briefly, the proposal eliminates the minimums for some of the parameters
and the parameters for length and width. Nebraska believes the limits on
the span between sections, combined with parameters on minimum platform
area (similar to modular scale parameters), should be sufficient.

Also, there is a proposed limit on the number of sections if the device
uses a lever system in the weighing element. If, for example, a
5-section scale is evaluated, it is not a given that a 6-section scale
would perform adequately. With each section added, the "signal" must be
transmitted through more levers to reach the indicating element,
increasing the potential for a loss of sensitivity. This concern may
also apply to fully electronic designs if the power supply is inadequate
for the number of load cells in use, but an auxiliary power supply may
overcome that concern. Nebraska would be interested in a response to the
comment on auxiliary power supplies.

The final result is a more uniform presentation of the parameters in the
various portions of Section 8. For example, an 18' x 10' scale (180 sq.
ft.) would be acceptable based on the evaluated device with sections of
20' x 14' (240 sq. ft.).

> **8.1 Additional criteria for vehicle scales, railway-track scales,
> combination vehicle/railway-track scales, and other platform scales
> over 30 000 lb and up to and including 200 000 lb.**

A CC will apply to all models having:

a.  **nominal capacities** ~~from 50 %~~ [up]{.underline} to 135 % of
    evaluated capacity;

> [b.]{.underline} [**platform area** for any two-section portion no
> less than 50 % of the smallest two-section portion incorporated in the
> device evaluated.]{.underline}
>
> ~~b~~c. **widths** ~~from 70 %~~ [up]{.underline} to 120 % of the
> width of the platform tested;[^2]
>
> ~~c~~. ~~**lengths** from 50 % to 150 % of the length of the platform
> tested;~~
>
> d\. ~~weighing elements in which the~~ a **span** between sections
> [of]{.underline} ~~is~~ not more than 20 % greater than the equipment
> evaluated;
>
> [e.]{.underline} [a **number of sections** for weighing elements which
> incorporate a lever system up to the number of sections
> evaluated.]{.underline}
>
> **8.2 Additional criteria for vehicle scales, railway-track scales,
> combination vehicle/railway-track scales, and other platform scales
> greater than 200 000 lb.**

A CC will apply to all models having:

> a\. **nominal capacities** ~~from 50 % to 100 % of~~ [no greater than
> the]{.underline} evaluated capacity;
>
> [b.]{.underline} [**platform area** for any two-section portion no
> less than 50 % of the smallest two-section portion incorporated in the
> device evaluated.]{.underline}
>
> ~~b~~[c]{.underline}. **widths** ~~from 70 % to 100 % of~~ [no greater
> than]{.underline} the width of the platform tested;^3^
>
> ~~c.~~ ~~**lengths** from 50 % to 100 % of the length of the platform
> tested;~~
>
> d\. ~~weighing elements in which the~~ **spans** between sections
> [of]{.underline} ~~is~~ not more than 20 % greater than the equipment
> evaluated;
>
> [e.]{.underline} [a) **number of sections** for mechanical weighing
> elements up to the number of sections evaluated.]{.underline}
>
> **8.3 Modular Load-Cell Vehicle, Livestock, or Railroad-Track Scales**
>
> ***Note:** These criteria apply if the vehicle scale is fully
> electronic (i.e., load cells comprise the sensors of the weighing
> element) and is of a modular design.*
>
> **Modular scale.** *A vehicle, livestock, or railroad-track scale made
> up of individual load-receiving elements of like design which can be
> joined together to form a larger integral load-receiving element and
> can be separated at any time without structurally changing the
> individual load-receiving elements. This definition is to be applied
> for all new type evaluations and for applications to add new devices
> to an existing Certificate of Conformance (see figure 3).*
>
> *(Effective January 2001)*
>
> **8.3.1. Modular Scale to be Tested**

The following criteria must be satisfied in the scale design and the
scale to be tested:

> a\. Load cells of the same design and capacity that consist of simply
> attaching modules together must be used throughout the family. If load
> cells of different capacities are used for scales of different
> structural strength and capacity in the family, then the module using
> the higher capacity load cells must be evaluated.
>
> b\. The CLC in the family must be not less than 40 % of the sum of the
> capacity of two load cells or 80 % of the capacity of one cell.
>
> c\. A scale with at least two modules must be tested. The module with
> the largest CLC is to be tested. If the longest span between sections
> is not tested, the Certificate of Conformance will include up to 120 %
> of the span between sections that was tested. Arrangements regarding
> the specific scale in the family to be tested will be established in
> consultation with NTEP representatives.

**8.3.2. Range of Parameters for Modular Scales**

> The following range of parameters will be used to establish the sizes
> and capacities of modular load-cell vehicle scales that will be
> covered on a Certificate of Conformance based upon the test of a
> single scale.
>
> a\. **Nominal capacities** not more than 1.5 times CLC for a
> two-section scale to 135 % of capacity of the device evaluated. The
> nominal capacity for the railroad-track scale in a modular
> vehicle/railroad combination will be no greater than the capacity of
> the device submitted for evaluation.
>
> b\. **Platform area** not less than 50 % of smallest two-section
> (four-cell) module incorporated in the device evaluated. Increased
> lengths for scales with two or more modules are not restricted as long
> as the width complies with 6(e) and the load cells meet the v~min~
> formula (i.e., v~min~ ≤ d / **√** n.) Additional modules to increase
> length must be of the same type as those used in the device submitted
> for evaluation (i.e., 4-cell, 2- cell, 0-cell.)
>
> c\. **CLCs** complying with the minimum CLC rating (i.e., not less
> than 80 % of the capacity of one cell) but not exceeding twice the
> capacity of one load cell.^2^
>
> d\. ~~**Modules** in which the~~ ~~span~~ **[span(s)]{.underline}**
> between sections [which]{.underline} is (are) not more than 20 %
> greater than the span of the largest two-section, four load-cell
> module ~~in the scale~~ evaluated.
>
> e\. **Widths** ~~from 70 %~~ up to 120 % of the width of the platform
> tested.^3^
>
> f\. **Nominal capacity** equal to or less than CLC times the number of
> sections minus one-half.
>
> g\. **Platform construction** **and material** similar to that of the
> device evaluated. (See section 8.e.)
>
> h\. **Scale division values** equal to or greater than the value of
> the scale division used in the scale that was evaluated.

i.  **number of divisions (n~max~)** the number of scale divisions that
    would exist for scales included in the range of capacities provided
    it does not exceed the n~max~ of the load cells and indicator for
    the installed system.

> j\. ~~module connection type~~ **[module connection
> type]{.underline}** will be limited to the original type evaluated.
> The manufacturer may choose to submit a special hybrid design
> including more than one type of module connection. For example, one
> module can be connected using welded connections and another can be
> connected using bolted connections. The resulting CC will cover all
> the types submitted if the evaluation is successful.

**Discussion/Conclusion:** The Sector reviewed and discussed the
proposed changes to Publication 14 and agreed with the submitter's
justification for amending the publication technical policy. The Sector
agreed with the proposal as submitted except that the number of sections
should not be limited to the device evaluated since any problem could be
discovered during initial tests and by mechanical and load cell
sensitivities. Additionally, the maximum length limitations in
paragraphs 8.1.c and 8.2.c were reinstated.

The Sector recommends Publication 14 for Digital Electronic Scales,
Sections 8.1, 8.2, and 8.3 be amended as follows:

> **8.1 Additional criteria for vehicle scales, railway track scales,
> combination vehicle/railway-track scales, and other platform scales
> over 30 000 lb and up to and including 200 000 lb.**
>
> A CC will apply to all models having:

b.  **nominal capacities** ~~from 50 %~~ [up]{.underline} to 135 % of
    evaluated capacity;

> [b.]{.underline} [**platform area** for any two-section portion no
> less than 50 % of the smallest two-section portion incorporated in the
> device evaluated.]{.underline}
>
> ~~b~~c. **widths** ~~from 70 %~~ [up]{.underline} to 120 % of the
> width of the platform tested;[^3]
>
> ~~c~~. **lengths** ~~from 50 % to~~ 150 % of the length of the
> platform tested~~;~~
>
> d\. ~~weighing elements in which the~~ a **span** between sections
> [of]{.underline} ~~is~~ not more than 20 % greater than the equipment
> evaluated;
>
> [e.]{.underline} [~~a **number of sections** for weighing (SC?
> load-receiving) elements which incorporate a lever system up to the
> number of sections evaluated~~.]{.underline}
>
> **8.2 Additional criteria for vehicle scales, railway-track scales,
> combination vehicle/railway-track scales, and other platform scales
> greater than 200 000 lb.**

A CC will apply to all models having:

> a\. **nominal capacities** ~~from 50 % to 100 % of~~ [no greater than
> the]{.underline} evaluated capacity;
>
> [b.]{.underline} [**platform area** for any two-section portion no
> less than 50 % of the smallest two-section portion incorporated in the
> device evaluated.]{.underline}
>
> ~~b~~[c]{.underline}. **widths** ~~from 70 % to 100 % of~~ [no greater
> than]{.underline} the width of the platform tested;^3^
>
> ~~c.~~ **lengths** ~~from 50 %~~ to 100 % of the length of the
> platform tested;
>
> d\. ~~weighing elements in which the~~ **spans** between sections
> [of]{.underline} ~~is~~ not more than 20 % greater than the equipment
> evaluated;
>
> [e.]{.underline} ~~[a **number of sections** for mechanical weighing
> (SC? load-receiving) elements up to the number of sections
> evaluated.]{.underline}~~
>
> **8.3 Modular Load-Cell Vehicle, Livestock, or Railroad Track Scales**
>
> ***Note:** These criteria apply if the vehicle scale is fully
> electronic (i.e., load cells comprise the sensors of the weighing
> element) and is of a modular design.*
>
> **Modular scale.** *A vehicle livestock or railroad track scale made
> up of individual load-receiving elements of like design which can be
> joined together to form a larger integral load receiving element and
> can be separated at any time without structurally change the
> individual load-receiving elements. This definition is to be applied
> for all new type evaluations and for applications to add new devices
> to an existing Certificate of Conformance (see figure 3).*
>
> *(Effective January 2001)*
>
> **8.3.1. Modular Scale to be Tested**

The following criteria must be satisfied in the scale design and the
scale to be tested:

> a\. Load cells of the same design and capacity that consist of simply
> attaching modules together must be used throughout the family. If load
> cells of different capacities are used for scales of different
> structural strength and capacity in the family, then the module using
> the higher capacity load cells must be evaluated.
>
> b\. The CLC in the family must be not less than 40 % of the sum of the
> capacity of two load cells or 80 % of the capacity of one cell.
>
> c\. A scale with at least two modules must be tested. The module with
> the largest CLC is to be tested. If the longest span between sections
> is not tested, the Certificate of Conformance will include up to 120 %
> of the span between sections that was tested. Arrangements regarding
> the specific scale in the family to be tested will be established in
> consultation with NTEP representatives.

**8.3.2. Range of Parameters for Modular Scales**

> The following range of parameters will be used to establish the sizes
> and capacities of modular load-cell vehicle scales that will be
> covered on a Certificate of Conformance based upon the test of a
> single scale.
>
> a\. **Nominal capacities** not more than 1.5 times CLC for a
> two-section scale to 135 % of capacity of the device evaluated. The
> nominal capacity for the railroad-track scale in a modular
> vehicle/railroad combination will be no greater than the capacity of
> the device submitted for evaluation.
>
> b\. **Platform area** not less than 50 % of smallest two-section
> (four-cell) module incorporated in the device evaluated. Increased
> lengths for scales with two or more modules are not restricted as long
> as the width complies with 6(e) and the load cells meet the v~min~
> formula (i.e., v~min~ ≤ d / **√** n.) Additional modules to increase
> length must be of the same type as those used in the device submitted
> for evaluation (i.e., 4-cell, 2-cell, 0-cell.)
>
> c\. **CLCs** complying with the minimum CLC rating (i.e., not less
> than 80 % of the capacity of one cell) but not exceeding twice the
> capacity of one load cell.^2^
>
> d\. ~~**Modules** in which the~~ ~~span~~ **[span(s)]{.underline}**
> between sections [which]{.underline} is (are) not more than 20 %
> greater than the span of the largest two-section, four load-cell
> module ~~in the scale~~ evaluated.
>
> e\. **Widths** ~~from 70 %~~ up to 120 % of the width of the platform
> tested.^3^
>
> f\. **Nominal capacity** equal to or less than CLC times the number of
> sections minus one-half.
>
> g\. **Platform construction** **and material** similar to that of the
> device evaluated. (See section 8.e.)
>
> h\. **Scale division values** equal to or greater than the value of
> the scale division used in the scale that was evaluated.
>
> i\. **number of divisions (n~max~)** the number of scale divisions
> that would exist for scales included in the range of capacities
> provided it does not exceed the n~max~ of the load cells and indicator
> for the installed system.
>
> j\. ~~module connection type~~ **[module connection
> type]{.underline}** will be limited to the original type evaluated.
> The manufacturer may choose to submit a special hybrid design
> including more than one type of module connection. For example, one
> module can be connected using welded connections and another can be
> connected using bolted connections. The resulting CC will cover all
> the types submitted if the evaluation is successful.

[]{#__RefHeading___Toc58813074 .anchor}**23. Acceptable Abbreviations
for Indicated and Recorded Representations.**

**Source:** California NTEP Laboratory

**Background:** Handbook 44 General Code Section 1.10, Table 1.
Representation of Unit does not include many abbreviations for units and
symbols that are in use today in the U.S. Modern weighing and measuring
devices are able to print more common and not so common units of
measure. During an NTEP evaluation, the lack of a complete list of
acceptable abbreviations for units such as gallons, inches, ounces, and
tons make it difficult to make a decision that a specific abbreviation
is sufficient and will be uniformly accepted by other NTEP evaluators
and field officials. A list of acceptable abbreviations in Handbook 44
would promote uniformity in type evaluation and field enforcement in
addition to NTEP applications.

This item was discussed at the April 2003 meeting of the participating
laboratories. The original problem dealt with an evaluation of a
vehicle-tank meter (VTM) controller used to deliver gasoline. In
Publication 14 ECR checklist, "G" is permitted for the printed receipt
but "GAL" was marked on the VTM controller. Publication 14 refers to
recorded representations in that it allows "GAL" "G" "Gallon". Liter can
be represented by "L" or "l' on a printed ticket. Information is
supposed to match on indicated and recorded representations

Historically, the "G" was a compromise for the receipts issued by
point-of sale systems and space limitations on the receipt tape. This is
still an issue today, however, the primary concern remains that
representation of units must be clearly defined. At the April 2003 NTEP
Participating Laboratory meeting, it was noted in the discussion that
Handbook 44 Code is somewhat specific. The letter "G" without product
identity can lead to some interpretation issues. It was also discussed
that Publication 14 Checklist for Electronic Cash Registers interfaced
with Retail Motor-Fuel Dispensers could be amended to remove "G" as an
acceptable solution in paragraph 3.1. It was suggested that a note could
be added to Publication 14 with a list of acceptable abbreviations that
instructs the evaluator to refer to Handbook 44 Appendix C, Handbook-130
FPLA section 6.7.1., and NIST Publication 811 Guide for the use of the
International System of Units (SI) for additional and acceptable
abbreviations.

The participating laboratories concluded that California should develop
a list of acceptable abbreviations to be submitted to the 2003 Western
Weights and Measures Association Technical Conference for consideration,
and to both NTETC Weighing and Measuring Device Sectors.

California proposed to add the following abbreviations to Handbook 44
General Code Table 1.

Add the following abbreviations to Table 1:

  ------------------------------------------------------------------------------------------------------------------------
  Name of Unit    Common   Representation                       Name of Unit Common   Representation             
                  Use                                                        Use                                 
                  Symbol                                                     Symbol                              
  --------------- -------- ---------------- --------- --------- ------------ -------- ---------------- --------- ---------
                           Form I           Form II                                   Form I           Form II   

                           (double case)    (single   (single                         (double case)    (single   (single
                                            lower     case                                             lower     case
                                            case)     upper)                                           case)     upper)

  Inches          In       In               in        IN        deciliter    dL       dL                         

  Foot            Ft       ft               ft        FT        kiloliter    kL       kL                         

  Yard            Yd       yd               yd        YD        cubic meter  M^3^     m^3^             m^3^      M^3^

  milligram       Mg       mg               mg                  cubic inches in^3^    in^3^            in^3^     IN^3^

  megagram        Mg       Mg                                   cubic foot   ft^3^    ft^3^            ft^3^     FT^3^

  Grain           Gr       gr               gr                  cubic yard   yd^3^    yd^3^            yd^3^     YD^3^

  Dram            Dr       dr               dr                  gills        gi       gi               Gi        GI

  ounce           Oz       oz               oz        OZ        pint         pt       pt               pt        PT

  pound           Lb       lb               lb        LB        quart        qt       qt               qt        QT

  hundredweight   Cwt      cwt              cwt       CWT       gallon       gal      gal              gal       GAL

  pennyweight     Dwt      dwt              dwt       DWT       ampere       A, I     A, I                       A, I

  ounce troy      oz t     oz t             oz t      OZ T      resistance   ohms     ohms             ohms      OHMS

  milliliters     ML       mL                                                                                    

  centiliter      CL       cL                                                                                    
  ------------------------------------------------------------------------------------------------------------------------

**Discussion/Conclusion:** The Sector reviewed the proposed table and
noted there were some omitted and incorrect abbreviations. One
manufacturer suggested that national and international documents be
referenced instead of continually updating the table. Other Sector
members responded that the referenced documents might not be available
to field officials. Additionally, there are no suggested abbreviations
for "ton" and the abbreviations for mega gram and milligram are the same
in "Common Use Symbol" column. The Sector recognizes the concern of the
NTEP laboratories and supports the concept of expanding Handbook 44
General Code Table 1. However, the Sector is concerned there might be
additional omissions and conflicting abbreviations and suggests the
proposal to expand Table 1 be thoroughly checked for accuracy.

[]{#__RefHeading___Toc58813075 .anchor}**24. Acceptable Abbreviations
for "Section Capacity."**

**Source:** Rice Lake Weighing Systems (RLWS)

Background: RLWS reported that some field officials are not accepting
abbreviations for \"Section Capacity\" on livestock and railway-track
scales. Additionally, there is not enough room to spell out "Section
Capacity" on some manufacturers\' ID badges. Rice Lake, for example,
only allows five characters for an identifier. RLWS submitted the
following proposal to the respective S&T Committees of Western and
Central Weights and Measures Associations for consideration at their
annual meetings in September 2003 to renumber Handbook 44 Scale Code
paragraphs S.6.4. and S.6.5., add S.6.4.3., and modify Table S.6.3.a.

**S.6.4.** **[Section Capacity.~~Railway Track Scales~~]{.underline}**

> **[S.6.4.1. Railway-Track Scales.]{.underline}** (formerly S.6.4.)
>
> **[S.6.4.2.]{.underline} ~~S.6.5.~~ Livestock Scales.** (formerly
> S.6.5.)
>
> [**S.6.4.3. Section Capacity Prefix.** -- The section capacity shall
> be prefaced by the words "Section Capacity" or an abbreviation of that
> term. Acceptable abbreviations shall be "SC," "Sec Cap," "S Cap," or
> "Sec C".]{.underline}

+-----------------+-----------+------------+-------------+----+------+
| Table S.6.3.a.  |           |            |             |    |      |
|                 |           |            |             |    |      |
| Marking         |           |            |             |    |      |
| Requirements    |           |            |             |    |      |
+=================+===========+============+=============+====+======+
| To Be Marked    | Weighing  |            |             |    |      |
| With           | Equipment |            |             |    |      |
+-----------------+-----------+------------+-------------+----+------+
|                 | Weighing, | Indicating | Weighing    | Lo | O    |
|                 | load-r    | element    | and         | ad | ther |
|                 | eceiving, | not        | loa         | ce | e    |
|                 | and       | p          | d-receiving | ll | quip |
|                 | i         | ermanently | element not | wi | ­ment |
|                 | ndicating | attached   | permanent­ly | th | or   |
|                 | element   | to         | attached to | CC | de   |
|                 | in same   | weighing   | indicating  |    | ­vice |
|                 | housing   | and        | element or  | \( |      |
|                 | or        | load       | covered by  | 11 | \(   |
|                 | covered   | -receiving | a separate  | \) | 10\) |
|                 | on the    | element or | CC          |    |      |
|                 | same      | covered by |             |    |      |
|                 | CC^1^     | a separate |             |    |      |
|                 |           | CC         |             |    |      |
+-----------------+-----------+------------+-------------+----+------+
| Manufacturer\'s | x         | x          | x           | x  | x    |
| ID (1)          |           |            |             |    |      |
+-----------------+-----------+------------+-------------+----+------+
| Section         |           | x          | x           |    |      |
| Capacity [and   |           |            |             |    |      |
| Pref            |           |            |             |    |      |
| ix]{.underline} |           |            |             |    |      |
| (14)(20)(22)    |           |            |             |    |      |
+-----------------+-----------+------------+-------------+----+------+
| Note: For       |           |            |             |    |      |
| applicable      |           |            |             |    |      |
| notes, see      |           |            |             |    |      |
| Table S.6.3.b.  |           |            |             |    |      |
|                 |           |            |             |    |      |
| ^               |           |            |             |    |      |
| 1^Weighing/load |           |            |             |    |      |
| receiving       |           |            |             |    |      |
| elements and    |           |            |             |    |      |
| indicators      |           |            |             |    |      |
| which are in    |           |            |             |    |      |
| the same        |           |            |             |    |      |
| housing or      |           |            |             |    |      |
| which are       |           |            |             |    |      |
| permanently     |           |            |             |    |      |
| attached will   |           |            |             |    |      |
| generally       |           |            |             |    |      |
| appear on the   |           |            |             |    |      |
| same CC. If not |           |            |             |    |      |
| in the same     |           |            |             |    |      |
| housing,        |           |            |             |    |      |
| elements shall  |           |            |             |    |      |
| be hard wired   |           |            |             |    |      |
| together or     |           |            |             |    |      |
| sealed with a   |           |            |             |    |      |
| physical seal   |           |            |             |    |      |
| or an           |           |            |             |    |      |
| electronic      |           |            |             |    |      |
| link. This      |           |            |             |    |      |
| requirement     |           |            |             |    |      |
| does not apply  |           |            |             |    |      |
| to peripheral   |           |            |             |    |      |
| equipment that  |           |            |             |    |      |
| has no input or |           |            |             |    |      |
| effect on       |           |            |             |    |      |
| device          |           |            |             |    |      |
| calibrations or |           |            |             |    |      |
| configurations. |           |            |             |    |      |
+-----------------+-----------+------------+-------------+----+------+
| (Added 1990)    |           |            |             |    |      |
| (Amended 1992,  |           |            |             |    |      |
| 1999, 2000,     |           |            |             |    |      |
| 2001 and 2002)  |           |            |             |    |      |
| (Footnote 1     |           |            |             |    |      |
| Added 2001)     |           |            |             |    |      |
+-----------------+-----------+------------+-------------+----+------+

Add to Table S.6.3.b. Add the following to notes 14, 20, and 22:

> *[\[See S.6.4.3.for acceptable abbreviation for "Section Capacity".
> The abbreviation may be indicated by initial capitals, all capitals,
> or all lower case\]]{.underline}*

**Discussion:** The Sector reviewed and discussed the above proposal.
The Sector also considered alternatives such as recommending the
proposed acceptable abbreviations need only be included in Publication
14, incorporating the recommended abbreviations for "section capacity"
in Handbook 44 definition of "section capacity", consistent with other
code definitions such as e, e~min,~ CLC, GGE, NBP, n~max~, etc.), and
adding a new note to Handbook 44 Scales code Table S.6.3.b. The Sector
also noted the abbreviations "SC," "S Cap," and "sec" should not be used
since they could be confused with the abbreviations for "scale capacity"
and "second."

**Conclusion:** The Sector agrees with the problem identified by RLWS
except for the proposed "SC" abbreviation. The Sector recommends the
following alternative language that amends Table S.6.3. and adds a new
note to Table S.6.3.b. as follows:

+-----------------+-----------+------------+-------------+----+------+
| **Table         |           |            |             |    |      |
| S.6.3.a.**      |           |            |             |    |      |
|                 |           |            |             |    |      |
| **Marking       |           |            |             |    |      |
| Requirements**  |           |            |             |    |      |
+=================+===========+============+=============+====+======+
| To Be Marked    | Weighing  |            |             |    |      |
| With           | Equipment |            |             |    |      |
+-----------------+-----------+------------+-------------+----+------+
|                 | Weighing, | Indicating | Weighing    | Lo | O    |
|                 | load-r    | element    | and         | ad | ther |
|                 | eceiving, | not        | loa         | ce | e    |
|                 | and       | p          | d-receiving | ll | quip |
|                 | i         | ermanently | element not | wi | ­ment |
|                 | ndicating | attached   | permanent­ly | th | or   |
|                 | element   | to         | attached to | CC | de   |
|                 | in same   | weighing   | indicating  |    | ­vice |
|                 | housing   | and        | element or  | \( |      |
|                 | or        | load       | covered by  | 11 | \(   |
|                 | covered   | -receiving | a separate  | \) | 10\) |
|                 | on the    | element or | CC          |    |      |
|                 | same      | covered by |             |    |      |
|                 | CC^1^     | a separate |             |    |      |
|                 |           | CC         |             |    |      |
+-----------------+-----------+------------+-------------+----+------+
| Manufacturer\'s | x         | x          | x           | x  | x    |
| ID (1)          |           |            |             |    |      |
+-----------------+-----------+------------+-------------+----+------+
| Section         |           | x          | x           |    |      |
| Capacity [and   |           |            |             |    |      |
| Pref            |           |            |             |    |      |
| ix]{.underline} |           |            |             |    |      |
| (14)(20)(22)[(2 |           |            |             |    |      |
| 4)]{.underline} |           |            |             |    |      |
+-----------------+-----------+------------+-------------+----+------+

+-----------------------------------------------------------------------+
| **Table S.6.3.b.**                                                    |
|                                                                       |
| **Notes For Table S.6.3.a.**                                          |
+=======================================================================+
| *23. Required only if a CC has been issued for the device or          |
| equipment. \[Nonretroactive as of January 1, 2003\]*                  |
|                                                                       |
| > (G-S.1. Identification (h) Added 2001)                              |
|                                                                       |
| ­[24. The section capacity shall be prefaced by the words "Section     |
| Capacity" or an abbreviation of that term. Acceptable abbreviations   |
| shall be "Sec Cap" or Sec C" and may be initial capitals, all         |
| capitals, or all lower case, and with or without periods]{.underline} |
+-----------------------------------------------------------------------+

[]{#__RefHeading___Toc58813076 .anchor}**25. Additional Items**

> []{#__RefHeading___Toc58813077 .anchor}**25a. Permanence Test of Floor
> Scales**

**Submitted by:** Bob Hamilton (Mettler Toledo)

> **Background:** The 2003 Edition of the Publication 14 checklist for
> digital electronic scales section 62 is titled "Performance and
> Permanence Test for Counter (Bench) Scales (including Computing
> Scales). However, paragraph 62.5 applies to "instruments up to and
> including 2000 lb". Paragraph 62.6.4.1 specifies 100 000 cycles for
> the permanence test. Section 63 is titled "Performance and Permanence
> Test for Floor Scales" and Section 63.1.1 specifies 300 weighing
> operations. There appears to be a conflict with the terminology used
> in Sections 62 and 63 where scales that do not fit the definition of
> bench/counter scales are tested differently based upon their capacity.
> The submitter proposed the language in Publication 14 be changed as
> follows:
>
> 62.5. Laboratory Permanence tests for [Bench, Counter, and Computing
> scales]{.underline} ~~(Applicable only to instruments up to and
> including 2000 lb capacity).~~
>
> Add new paragraph:
>
> [63.1.3.1. As an alternative test for floor scales up to and including
> 2000 lb (1000 kg), conduct a laboratory permanence test at one-half
> capacity, (300) weighing operations]{.underline}.
>
> **Discussion:** The submitter reported that permanence testing is only
> conducted on scales up to 220 lb (100 kg) for OIML evaluations. The
> NIST technical adviser stated that the original Publication 14
> language was based upon the capacities of scales that could be tested
> at an NTEP laboratory. The field permanence test for scales greater
> that 2000 lb was a compromise with the states that conducted 90-day
> field permanence tests on all scales, regardless of the capacity. The
> type evaluation states felt that time should be a factor influencing
> permanence in lieu of 100 000 cycles of load application. The NTEP
> director questioned the need for permanence testing and requested the
> participating laboratories compile pass/fail data from permanence
> tests. Some of the participating laboratories suggested the titles for
> the permanence testing section be updated and be based upon scale
> capacity. It was also noted that Publication 14, Section 61 is titled
> "Performance and Permanence Tests for Scales and Electronic Cash
> Registers" (ECRs). A different chapter in Publication 14 already
> covers ECRs.
>
> **Conclusion:** The NTEP director will request permanence test
> compliance data from the participating laboratories and make editorial
> corrections the Publication 14 sections 61, 62, and 63.

[]{#__RefHeading___Toc58813078 .anchor}**25b. Series and Model
Designations that Clearly Identify Pattern and Design of the Device**

> **Submitted by:** Bill Fishman, New York
>
> **Background:** The New York participating laboratory reported on
> applications where the "Series" designation for the family had no
> relation to the specific device model designation. This does not
> present a problem for type evaluation. However, it does create a
> problem for field inspections when an inspector tries to look up a
> Certificate of Conformance (CC) based upon the model designation
> marked on the device. An inspector would have trouble using the NTEP
> CC database if the Series designation listed in the CC is "Fish" and
> the model designation marked on the device is 500 to verify that an
> NTEP CC covers the model 500.
>
> **Discussion/Conclusion:** The participating laboratories agreed this
> might be a concern when conducting field inspections when an inspector
> tries to look up a CC based upon the model designation marked on the
> device. In order to compel an applicant to establish and mark a device
> with a designation that clearly identifies the pattern or design of
> the device and that the specific model designation be based on the
> series designation, the Sector considered recommending NTEP cite
> Handbook 44 General Code paragraph G-S.1-Identification. It was also
> noted that all devices manufactured after January 1, 2003 that have an
> NTEP CC shall be marked with the CC Number making it easier for the
> field inspector to associate the model designation with its associated
> CC.
>
> The Sector concluded the NTEP director and participating laboratories
> will work to determine if a standard process needs to be developed to
> provide additional guidance in the uniformity of model, type, and
> pattern designations, and information on the CC.

[]{#__RefHeading___Toc58813079 .anchor}**26. Next Meeting**

The next Weighing Sector meeting is scheduled for September 2004 in
Canada. Please contact the Sector Technical Advisor Steven Cook, NIST
WMD to propose items for future meetings. Mr. Cook can be reached by
telephone at 301‑975-4003, by fax at 301‑926-0647, by e-mail at
<stevenc@nist.gov>, or in writing at NIST, 100 Bureau Drive -- Stop
2600, Gaithersburg, MD 20899-2600.

[]{#__RefHeading___Toc58813080 .anchor}**ATTACHMENTS**

[]{#__RefHeading___Toc58813081 .anchor}Attachment for Item 2

> 65a.2. [Shift and]{.underline} Section Tests [(Initial Performance
> Testing)]{.underline}
>
> [A **shift test** is defined in Handbook 44 as a test intended to
> disclose the weighing performance of a scale under off‑center loading.
> \[2.20\]]{.underline}
>
> [**A section** **test** is defined in Handbook 44 as a **shift test**
> in which the test load is applied over individual sections of the
> scale.  This test is conducted to disclose the weighing perfor­mance of
> individual sections since scale-capacity test loads are not always
> available and loads weighed are not always distributed evenly over all
> main load supports. \[2.20\]]{.underline}

[The minimum amount of ***test weights*** to conduct the **shift and
section tests** shall be~~shall beat least~~ 90% **of the**
CLC.]{.underline}

> [Record the time and temperature at the beginning and end of each
> complete **shift**-test load test. The scale shall be capable of
> returning to zero within prescribed limits if the temperature has not
> changed more than 5 ^o^C (9 ^o^F) (T.N.8.1.3.) or within 15 minutes
> after the load was removed (creep recovery).]{.underline}
>
> [Unless otherwise stated in the following procedure**, the**
> increasing and decreasing loads (using **known** test weights) shall
> be conducted with at least **five test loads (e.g. 500, 1000,
> 2000e\...).** ~~steps.~~ (NOTE) If possible, the first ~~increment of
> test weights~~ **test load** should equal 500e. If weights cannot be
> conveniently applied that equal 500e, the first load should equal just
> below 500e as nearly as possible. The other tolerance breakpoints
> should be tested if possible.]{.underline}

An example of a three-section scale:

  ----- ---------- ----- ---------- ----- ---------- ----- ---------- -----
  4\'              4\'              4\'              4\'              4\'

                                                                      
  ----- ---------- ----- ---------- ----- ---------- ----- ---------- -----

  --------- ------ ---------- ----- --------- ----- ---------- ----- ---------
  Section 1        Midway           Section 2       Midway           Section 3
                   between                          between          
                   sections 1                       sections 2       
                   and 2                            and 3            

  --------- ------ ---------- ----- --------- ----- ---------- ----- ---------

> 65a.2.1. Conduct at least two complete sets of **[shift]{.underline}**
> ~~section~~ tests over each **section** to at least 90 % of the
> concentrated load capacity (CLC) of the scale. When analyzing the
> return to zero, consideration must be given for the length of time the
> load was on the scale and possible temperature changes that may have
> occurred during the test.
>
> (a). [Begin]{.underline} ~~T~~[t]{.underline}he ~~section~~
> **[shift]{.underline}** test ~~will be conducted~~ by loading one end
> **section** to the first of at least five test loads [and record the
> error]{.underline} ~~moving the load to each **section**~~.

(b) [Move]{.underline} ~~Record the error moving~~ the **test** load to
    **the next** ~~each~~ **section** **and record the error. Repeat
    these steps** at each **section** until the opposite end of the
    scale is reached. Record ~~recording~~ the error at each **section**
    ~~and at each load~~.

> \(c\) Repeat ~~the section **[shift]{.underline}** test procedure
> above in~~ steps (a) and (b) ~~above~~ for each test load ~~[at
> increasing]{.underline} weight increment[s]{.underline}~~ until at
> least 90 % of the CLC is reached. A minimum of five test loads is
> required.
>
> [NOTE: While at the maximum test load **(90 % of the CLC) and** during
> ***one of the shift tests*, place** ~~locate~~ the test weights ~~and
> record the errors~~ at mid-span between **sections and record the
> error~~.~~**~~, and on~~]{.underline}
>
> [**On** modular scales, **place the test weights on one side of and
> across the weighing element where the modules connect. Repeat this
> procedure on the other side of the module connection line and at each
> section.** ~~each~~ ~~on the ~~]{.underline}~~center[, right and left
> side of the module connection line located at each
> section.]{.underline}~~
>
> \(d\) **When steps (a) to (c) are complete,** conduct a
> decreasing-load test ~~on the **section**~~ at the end of the scale
> where the weights can be reloaded. **Record the error and section
> where this test was performed.**
>
> ~~(NOTE) If possible, the first increment of test weights should equal
> 500e. If weights cannot be conveniently applied that equal 500e, the
> first load should equal just below 500e as nearly as possible. The
> other tolerance breakpoints should be tested if possible.~~

~~65a.3 Shift Test~~

> ~~While at the maximum test load, locate the test weights and record
> the errors at mid-span between sections, and on modular scales, each
> on the right and left side of the module connection line located at
> each section. This can be done in conjunction with one of the section
> tests.~~

65a.4. Strain Load Test [(Initial Performance Testing)]{.underline}

[The minimum amount of ***test weights*** used shall be the same loads
used to conduct the shift tests.]{.underline}

[Acceptance tolerances are applied only to the known test load in the
strain-load test.]{.underline}

> [Record the time and temperature at the beginning and end of each
> complete strain-load test. The scale shall be capable of returning to
> zero within prescribed limits if the temperature has not changed more
> than 5 ^o^C (9 ^o^F) (T.N.8.1.3.) or within 15 minutes after the load
> was removed (creep recovery).]{.underline}
>
> [Unless otherwise stated in the following procedure, increasing and
> decreasing loads (using test weights) shall be conducted with at least
> five steps. (NOTE) If possible, the first increment of test weights
> should equal 500e. If weights cannot be conveniently applied that
> equal 500e, the first load should equal just below 500e as nearly as
> possible. The other tolerance breakpoints should be tested if
> possible.]{.underline}
>
> 65a.4.1. Conduct at least one strain-load test at each end of the
> scale. The maximum load applied during the strain load shall be in the
> range of 80 to 100 % of scale capacity. Distribute the load over the
> load-receiving element.
>
> 65a.4.2. [For the first test,]{.underline} ~~L~~load the scale with a
> vehicle or vehicles so the addition of test weights will provide a
> gross load of 80 to 100 % of scale capacity. Determine the \"reference
> point\" for the start of the strain-load test. Add the test weights to
> one of the ends of the scale without exceeding the CLC [in the
> prescribed test pattern.]{.underline} [(*The test weights do not have
> to be in a prescribed test pattern and may be distributed over the
> available area of the platform or on the vehicle(s).)*]{.underline}
>
> [For the first test,]{.underline} ~~L~~load the scale with a vehicle
> or vehicles so the addition of test weights will provide a gross load
> of 80 to 100 % of scale capacity. Determine the \"reference point\"
> for the start of the strain-load test. Add the test weights to one of
> the ends of the scale without exceeding the CLC [prescribed test
> pattern and record the strain-load value.]{.underline} [(***The test
> weights ~~do not have to~~ will be in a prescribed test pattern for
> the section at the end of the scale. ~~and may be distributed over the
> available area of the platform or on the
> vehicle(s).)~~***]{.underline}~~.~~
>
> 65a.4.3. ~~Do not conduct a decreasing load test or a return to the
> strain load reference weight as part of this particular strain load
> test.~~ ~~After removing~~ [Remove]{.underline} the test weights from
> the end of the scale [without conducting a decreasing-load
> test]{.underline}, re-establish the strain-load reference value and
> re-apply the test weights to verify that the strain-load values repeat
> the initial values. [The scale shall perform within prescribed
> tolerances based upon tolerance for the known test load (The actual
> strain-load indication after the application of the known test load
> shall agree within the target strain-load test indication within
> prescribed limits.]{.underline} Conduct a decreasing-load test and
> return to the strain-load reference value as the weights are removed
> as part of this test cycle. The return to the strain-load reference
> value shall be within one-half of a scale division considering creep
> and any temperature changes that may have occurred during this last
> test cycle. [Remove the ~~known test weights and the~~ strain load. Do
> not apply zero_return tolerances at this time]{.underline}.
>
> 65a.4.4. ~~Remove the known test weights and the strain load.~~ [For
> the second test, ~~Z~~zero]{.underline} the scale; place the strain
> load [(vehicles or material of unknown weight)]{.underline} on the
> other end of the scale; establish the strain-load reference value.
> [During the second test, the semi-automatic tare mechanism may be used
> to tare out the strain-load value (net weight indications used for the
> increasing-load test.)]{.underline} Do not use the zero-setting
> mechanism to set the strain load to zero~~; use the tare mechanism to
> tare out the strain load. Use the gross load zero value to conduct a
> decreasing load test when removing the strain load in the next test~~.
>
> 65a.4.5. ~~Repeat the strain load test on the other end of the scale~~
> [Add the test weights the other end of the scale without exceeding the
> CLC in the prescribed test pattern. (*The test weights do not have to
> be in a prescribed test pattern and may be distributed over the
> available area on the platform or on the vehicle(s).)*]{.underline}
> [The scale shall perform within prescribed tolerances based upon
> tolerance for the known test load (The actual strain-load indication
> after the application of the known test load shall agree with the
> target strain-load test indication within prescribed
> limits).]{.underline} After reaching the maximum test load for the
> strain-load test, remove the strain load [(vehicles or material of
> unknown weight)]{.underline} but leave the known test weights on the
> scale. [Use the "gross weight" indications to conduct a
> decreasing-load test after removing the strain load in the next
> test.]{.underline} The weight indication for the decreasing-load test
> must be within tolerance for the known test load. Continue the
> decreasing-load test by removing the known test weights. ~~Take
> several readings as the weights are being removed**. **~~ ***(Should
> the previous strikeout language should be left in?)*** When all the
> weights are removed, record the return to zero. The scale must return
> to zero within one-half of a scale division. ~~When analyzing the
> return to zero, consideration must be given for the length of time the
> load was on the scale and possible temperature changes that may have
> occurred during the test.~~

~~65a.4.6. Acceptance tolerances are applied only to the known test load
in the strain load test.~~

65a.5. Subsequent Type Evaluation (Field) Permanence Tests

[The minimum amount of ***test weights*** for the shift and strain-load
tests shall be:]{.underline}

[a minimum of 40 000 lb, or]{.underline}

[50 % of the CLC whichever is greater,]{.underline}

> [***(one of the labs recommends that this should be 90 %)*** ~~5~~90 %
> of the CLC, whichever is greater,]{.underline}

[Acceptance tolerances are applied only to the known test load in the
strain-load test.]{.underline}

> [Record the time and temperature at the beginning and end of each
> complete strain-load test. The scale shall be capable of returning to
> zero within prescribed limits if the temperature has not changed more
> than 5 ^o^C (9 ^o^F) (T.N.8.1.3.) or within 15 minutes after the load
> was removed (creep recovery).]{.underline}
>
> [Unless otherwise stated in the following procedure, increasing and
> decreasing-load test results (using test weights) shall be recorded at
> a minimum of three test loads (zero, approx. one-half maximum test
> weights, and at maximum test weights).]{.underline}
>
> 65a.5.1. The minimum number of days that a device is required to be in
> use is 20. It is not required that a certain number of weighing
> operations be conducted each day for the test period. Performance
> during both tests must be within acceptance tolerances. ***(Should
> This Section Be Moved To Section 65a.7.?)***
>
> 65a.5.2. Conduct at least one complete set of ~~section~~
> **[shift]{.underline}** tests over each **section** and at mid-span
> between each **section.** On modular scales additional tests are
> conducted on the center[,]{.underline} right, and left sides of the
> module connection line~~located at each section, using minimum of 40
> 000 lb of known test weights or 50 % of the CLC whichever is
> greater~~.
>
> 65a.5.3. Conduct at least [one complete set of]{.underline} strain
> load test[s]{.underline} ~~at each end of the scale~~ [using the
> "Strain Load Test" procedures above]{.underline}. The maximum applied
> load shall be in the range of 65 % to 100 % of scale capacity. (The
> Ohio lab recommends ~~65~~ [80]{.underline} to 100 % of scale
> capacity.)
>
> 65a.5.4. If the device does not meet these tolerance limits, the
> entire test must be repeated, including successful initial performance
> testing and a subsequent test after a minimum of 20 days.

[]{#__RefHeading___Toc58813082 .anchor}**Attachment for Items 10 and
11**

[LG‑15.01 Center-of-zero indication and setting zero within ± 1/4
e]{.underline}

**APPLICATION:** Applicable to complete electronic scales and separate
electronic indicators having SAZSM or IZSM or equipped with a
\"center-of-zero\" indicator.

**PURPOSE:** This test is to verify the SAZSM and IZSM automatically set
the device to zero within ± 1/4 of **e** and to verify the device range
of center-of-zero indication is equal to or less than ± 1/4 **e**. Note
that the range of center-of-zero indication of Class I or II devices
equipped with auxiliary reading means is ± 1/2 of **d**. This must be
taken into consideration when performing the following tests and
interpreting the results. **Take into account that the ZU of weight
classifiers is adjacent to the graduation**.

**PROCEDURE:** [Setting zero to within]{.underline} ± [1/4
**e**.]{.underline}

A\) Switch the AZSM off or set its value to zero effect; zero the DUT.

B\) Place a load of at least **e** (made of 1/10 e weights) on the
platter and RE-ZERO the device.

C\) Successively remove small denomination weights in 1/10 x **e** steps
until the low end of the interval is reached (the indication begins to
alternate between 0 and -1 **e**). Record the weights removed as being
the negative portion of the interval.

D\) Successively add small denomination weights in 1/10 x **e** steps
until the high end of the interval is reached (the indication begins to
alternate between 0 and +1 **e**). Record the value of the weights added
and subtract the value of the weights recorded in C. The difference is
the positive portion of the interval.

E\) Determine if the zero position as set by the SAZSM deviates from the
true zero reference point by more than 1/4 **e**. Generally, the zero
position, as automatically set by the SAZSM, should coincide with the
zero reference point; in such a case, the negative range would equal the
positive range. See illustration.

F\) Repeat the test by zeroing the device using the IZSM.

[Width of the center-of-zero indication (annunciator)]{.underline}

G). Switch the AZSM off or set its value to ZERO effect.

H\) Set the device to zero.

I\) Place a load of at least **e** (made of 1/10 **e** weights) on the
platter; zero the DUT.

J\) Successively remove small denomination weights in 1/10 x **e** steps
until the visual confirmation of zero goes off. Record the value of the
weights removed as being the negative portion of the center of zero
indication.

K\) Successively add small denomination weights in 1/10 x **e** steps
until the center-of-zero indicator goes off (positive limit). Record the
difference between the value of the weights remaining on the platter and
the value of the weight recorded in **J** as being the positive portion
of the center-of-zero indication.

**INTERPRETATION OF RESULTS:** The DUT is deemed to comply with the
requirements if the zero-setting mechanisms automatically set the device
to zero within ± 1/4 of **e** from the true zero reference point, and if
the center-of-zero annunciator indicate a zero-balance condition within
± 1/4 **e** of the true zero reference point.

**Note that for Class I or II devices with auxiliary reading means the
range is ± 0.5 d**.

**LG‑15.04 IZSM Range (Maximum Range of Initial Zero Setting
Mechanism)**

**APPLICATION:** This test is applicable to electronic indicators and to
complete electronic devices.

**PURPOSE:** The purpose of this test is to determine whether or not the
total range of the initial zero-setting mechanism exceeds 20 %. The
initial zero-setting mechanism is the mechanism that sets the scale to
zero upon power up.

+-----------------------------------------------------------------------+
| **CLARIFICATION**                                                     |
|                                                                       |
| **Electronic indicators tested and approved separately:** The         |
| load-receiving element to which an electronic indicator tested and    |
| approved separately will be interfaced will not have been tested up   |
| to 200% of Max. Consequently, the maximum Initial Zero-Setting        |
| Mechanism range of electronic indicators must be limited to 20% of    |
| Max.                                                                  |
+-----------------------------------------------------------------------+

![](media/image26.wmf){width="4.595138888888889in"
height="4.238194444444445in"}

**TEST PROCEDURE**

[Electronic indicators]{.underline}

Note: The following explanation of the test procedure is based upon the
use of a load-receiving element connected to the electronic indicator
because it is easier to explain the procedure this way. However, the
actual test can be performed using a load cell simulator or a rheostat
provided that the basic principles are maintained. The procedure
consists of calibrating the electronic indicator so that it only uses a
small portion of the total capacity of the LRE.

A\) Connect the indicator to an LRE and calibrate the indicator so it is
at a zero-balance condition when the LRE is loaded at 50 % of its
maximum capacity and it displays the number of intervals \"n\" (as
requested by the applicant) when the LRE is fully loaded (Cap).

B\) By trial and error, find the -*ve* portion of the electronic
indicator\'s IZSM range by removing a load(s) from the LRE and trying to
zero it using the electronic indicator\'s IZSM. The IZSM is triggered by
unplugging and plugging the power cord. (Note: on some devices, it is
sufficient to switch it off and on.)

a\) Similarly, by trial and error, find the +*ve* portion of the
electronic indicator\'s IZSM range by adding a load(s) to the LRE and
trying to zero it using the electronic indicator\'s IZSM.

**[Complete electronic scale]{.underline}**

**Note: Whenever possible, perform the procedure described above for
electronic indicators tested separately; or**

**D) Remove the platter in order to reach the lowest point of the IZSM
range.**

**E) By trial and error, find the +*ve* portion of the electronic
indicator\'s IZSM range by adding a load(s) to the LRE and trying to
zero it using the electronic indicator\'s IZSM. The IZSM is triggered by
unplugging and re-plugging the power cord. (Note: on some devices, it is
sufficient to switch it off and on.)**

**INTERPRETATION OF RESULTS**

An electronic indicator tested and approved separately is deemed to
comply with the requirements when the total range of the Initial
Zero-Setting Mechanism (absolute value of -portion of the range plus the
+*ve* portion of the range) does not exceed 20 % (or can be set to a
maximum of 20 % and sealed) of the DUT\'s maximum capacity (Max);

The IZSM range of a complete electronic device may exceed 20 % of Max if
the device performs within tolerances when the IZSM is set at the
minimum and maximum points of its range.

When the IZSM range is limited to 20 %, performance tests are conducted
once: at the maximum IZSM setting. When the IZSM range exceeds 20 %,
certain performance tests are conducted twice: at the minimum and at the
maximum settings of the range. See description of the performance tests
in Part 3.

+----------------+-----------------------------------------------------+
| WELMEC 2.1     | **WELMEC**                                          |
|                |                                                     |
| (Issue 3)      |                                                     |
+----------------+-----------------------------------------------------+
|                | **European cooperation in legal metrology**         |
+----------------+-----------------------------------------------------+

> **Guide for Testing Indicators**
>
> **(Non-automatic Weighing Instruments)**

![](media/image27.png){width="5.0055555555555555in"
height="5.522916666666666in"}

February 2001

From WELMEC 2-1

**ANNEX 2**

**SPECIFICATION OF SENSITIVITY**

The value of the verification scale interval is expressed in µV per
verification scale interval in the case of strain-gauge measurement.

The reasons for fixing this value are the following:

-   It specifies the maximum sensitivity of the indicator, which is a
    very important parameter, in the correct way.

-   By specifying the maximum sensitivity of the indicator, the maximum
    amplification is fixed, which is very important for the signal/noise
    ratio.

-   The drift in offset-voltage of the amplifier can be seen as
    zero‑drift. The smaller the input voltage per VSI, the larger the
    influence of that drift. For a certain small value of the input
    signal per VSI, the indicator will no longer comply with 3.9.2.3 of
    EN 45501.

-   The VSI cannot be expressed in units of mass because generally it is
    not known what capacity load cell will be connected to the
    indicator.

Furthermore it is an easy parameter to evaluate the proper combination
with a load cell. The following example elucidates this.

The indicator is tested under the following conditions with a load cell:

1\. the sensitivity of the load cell is 2 mV/V;

2\. the excitation power supply is 10 V;

3\. the load cell weighing range is 30% of maximum capacity;

4\. the number of verification scale intervals is 6000 VSI;

5\. therefore the unit per verification scale interval expressed in
microvolts is:

(2 \[mV/V\] 10 \[V\] 30%) / 6000 VSI = 1 µV/VSI.

The test is carried out and, if the indicator performs within the MPE
allowance with respect to the value calculated under 5, a test
certificate is issued.

If the manufacturer of a weighing instrument combines the indicator with
a tested load cell that does not have a sensitivity of 2 mV/V but 1 mV/V
while the other parameters described above remain the same, then the
indicator will have a unit per verification scale interval of 0.5 µV/VSI
instead of 1 µV/VSI. In this case the instrument will possibly not
comply with the requirements for the temperature effect on no load
indication (3.9.2.3 of EN 45501).

**From OIML R76-1:**

**Annex A. Test Procedures**

A.4.4.2 Supplementary weighing test (4.5.1)

For instruments with an initial zero-setting device with a range greater
than 20 % of Max, a supplementary weighing test shall be performed using
the upper limit of the range as zero point.

A.4.2.1.1 Initial zero-setting

With the load receptor empty, set the instrument to zero. Place a test
load on the load receptor and switch the instrument off and then back
on. Continue this process until, after placing a load on the load
receptor and switching the instrument on and off, it does not re-zero.
The maximum load that can be re-zeroed is the positive portion

of the initial zero-setting range.

Remove any load from the load receptor and set the instrument to zero.
Then remove the load receptor (platform) from the instrument. If, at
this point, the instrument can be reset to zero by switching it off and
back on, the mass of the load receptor is used as the negative portion
of the initial zero-setting range.

If the instrument cannot be reset to zero with the load receptor
removed, add weights to any live part of the scale (e.g. on the parts
where the load receptor rests) until the instrument indicates zero
again.

Then remove weights and, after each weight is removed, switch the
instrument off and back on. The maximum load that can be removed while
the instrument can still be reset to zero by switching it off and on is
the negative portion of the initial zero-setting range.

The initial zero-setting range is the sum of the positive and negative
portions. If the load receptor cannot readily be removed, only the
positive part of the initial zero setting range need be considered.

**From R76-2 Test Form**

Number range CHAPTERAutomatic zero-setting and zero-tracking device is:

  -- -------------- -- ---------------- -- -------------------- -- ------------
     Non-existent      Not in operation    Out of working range    In operation

  -- -------------- -- ---------------- -- -------------------- -- ------------

  ------------------------------- ----- -- ---- -----------------------------
  Initial zero-setting \> 20% of  Yes      No   (see R 76-1, A.4.4.2)
  Max:                                          

  ------------------------------- ----- -- ---- -----------------------------

E = I + 1/2 e ) L ) L

E~c~ = E ) E~0~ with E~0~ = error calculated at or near zero(\*)

<table style="width:100%;">
<colgroup>
<col style="width: 17%" />
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<col style="width: 9%" />
<col style="width: 8%" />
<col style="width: 11%" />
</colgroup>
<tbody>
<tr class="odd">
<td>Load L</td>
<td colspan="2">Indication I</td>
<td colspan="2"><p>Add. load</p>
<p>L</p></td>
<td colspan="2">Error E</td>
<td colspan="2"><p>Corrected</p>
<p>error E<sub>c</sub></p></td>
<td rowspan="2">mpe</td>
</tr>
<tr class="even">
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td>(*)</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td>(*)</td>
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</tr>
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</tr>
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<td></td>
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</tr>
<tr class="odd">
<td></td>
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<td></td>
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<td></td>
<td></td>
</tr>
</tbody>
</table>

  ------- --------------------------------- ------- ----------------------
          Passed                                    Failed

  ------- --------------------------------- ------- ----------------------

Remarks:

65(a.). Performance and Permanence Tests for \"Single Load-Receiving
Element\" Legal for Highway Vehicle Scales and Permanently-Installed
Axle-Load Scale Weighing Elements

65a.2. Section Tests

An example of a three-section scale:

  ----- ---------- ----- ---------- ----- ---------- ----- ---------- -----
  4\'              4\'              4\'              4\'              4\'

                                                                      
  ----- ---------- ----- ---------- ----- ---------- ----- ---------- -----

  --------- ------ ---------- ----- --------- ----- ---------- ----- ---------
  Section 1        Midway           Section 2       Midway           Section 3
                   between                          between          
                   sections 1                       sections 2       
                   and 2                            and 3            

  --------- ------ ---------- ----- --------- ----- ---------- ----- ---------

> 65a.2.1. Conduct at least two complete sets of section tests over each
> section to at least 90 % of the concentrated load capacity (CLC) of
> the scale. A single complete shift test is defined in steps (a)
> through (d). When analyzing the return to zero, consideration must be
> given for the length of time the load was on the scale and possible
> temperature changes that may have occurred during the test.
>
> (a). The section test will be conducted by loading one end section to
> the first of at least five test loads, moving the load to each
> section.
>
> \(b\) Record the error moving the load to each section until the
> opposite end of the scale is reached, recording the error at each
> section and at each load.
>
> \(c\) Repeat the section test procedure above in steps (a) and (b)
> above for each weight increment until at least 90 % of the CLC is
> reached.
>
> \(d\) Conduct a decreasing-load lest on the section at the end of the
> scale where the weights can be reloaded.

(NOTE) If possible, the first increment of test weights should equal
500e. If weights cannot be conveniently applied that equal 500e, the
first load should equal just below 500e as nearly as possible. The other
tolerance breakpoints should be tested if possible.

65a.3 Shift Test

While at the maximum test load, locate the test weights and record the
errors at mid-span between sections, and on modular scales, each on the
right and left side of the module connection line located at each
section. This can be done in conjunction with one of the section tests.

65a.4. Strain-load Test

> 65a.4.1. Conduct at least one strain-load test at each end of the
> scale. The maximum load applied during the strain load shall be in the
> range of 80 to 100 % of scale capacity. Distribute the load over the
> load-receiving element.
>
> 65a.4.2. Load the scale with a vehicle or vehicles so the addition of
> test weights will provide a gross load of 80 to 100 % of scale
> capacity. Determine the \"reference point\" for the start of the
> strain-load test. Add the test weights to one of the ends of the scale
> without exceeding the CLC.
>
> 65a.4.3. Do not conduct a decreasing-load test or return to the
> strain-load reference weight as part of this particular strain-load
> test. After removing the test weights from the end of the scale,
> re-establish the strain-load reference value and re-apply the test
> weights to verify the strain-load values repeat the initial values.
> Conduct a decreasing-load test and return to the strain-load reference
> value as the weights are removed as part of this test cycle. The
> return to the strain-load reference value shall be within one-half of
> a scale division considering creep and any temperature changes that
> may have occurred during this last test cycle.
>
> 65a.4.4. Remove the known test weights and the strain load. Zero the
> scale; place the strain load on the other end of the scale; establish
> the strain-load reference value. Do not use the zero-setting mechanism
> to set the strain load to zero; use the tare mechanism to tare out the
> strain load. Use the gross-load zero value to conduct a
> decreasing-load test when removing the strain load in the next test.
>
> 65a.4.5. Repeat the strain-load test on the other end of the scale.
> After reaching the maximum test load for the strain-load test, remove
> the strain load but leave the known test weights on the scale. The
> weight indication for the decreasing-load test must be within
> tolerance for the known test load. Continue the decreasing-load test
> by removing the known test weights. Take several readings as the
> weights are being removed. When all the weights are removed, record
> the return to zero. The scale must return to zero within one-half of a
> scale division. When analyzing the return to zero, consideration must
> be given for the length of time the load was on the scale and possible
> temperature changes that may have occurred during the test.

65a.4.6. Acceptance tolerances are applied only to the known test load
in the strain-load test.

65a.5. Subsequent Type Evaluation (Field) Permanence Tests

> 65a.5.1. The minimum number of days that a device is required to be in
> use is 20. It is not required that a certain number of weighing
> operations be conducted each day for the test period. Performance
> during both tests must be within acceptance tolerances.
>
> 65a.5.2. Conduct at least one complete set of section tests over each
> section, at mid-span between each section and on modular scales, each
> on the right and left side of the module connection line located at
> each section, using minimum of 40 000 lb of known test weights or 50 %
> of the CLC, whichever is greater.
>
> 65a.5.3. Conduct at least one strain-load test at each end of the
> scale. The maximum applied load shall be in the range of 65 to 100 %
> of scale capacity.
>
> 65a.5.4. If the device does not meet these tolerance limits, the
> entire test must be repeated, including successful initial performance
> testing and a subsequent test after a minimum of 20 days.

65a.6. Caution Regarding Load Concentration

Concentrating large loads on scale platforms by using weight carts or
test equipment using hydraulic jacks may exceed the maximum
pound-per-square-inch load specification for the deck. This condition
may arise because the small tire area of the weight cart in contact with
the deck surface could result in a very large load concentration over an
unusually small area. This could cause damage to the scale deck.

This situation may occur with a weight cart having a very narrow or
short wheelbase and small solid rubber tires. This causes a problem on
steel plate decks and could also result in damage to manhole covers. If
the load capacities of weight carts increase beyond 25 000 lb, while
maintaining solid tread wheels, it is possible that some concrete decks
could be damaged.

65a.7. Permanence Test Use Requirements for Vehicle Scales

> 65a.7.1. A minimum of 300 weighing operations are required during the
> test period. The manufacturer is to log the date, time, and weight.
> The person conducting the weighing is to initial each testing.
>
> 65a.7.2. Only loads which reflect "normal" use, will be counted during
> the permanence-testing period.[^4]

65a.7.3. For vehicle scales with a nominal capacity over 75 000 lb:

> 65a.7.3.1. 50 % of the loads must be above 50 000 lb or 80 % of the
> CLC, whichever is greater; and
>
> 65a.7.3.2. 100 % of the loads must be above 20 000 lb or 50 % of the
> CLC, whichever is greater.

65a.7.4. For all other scales:

65a.7.4.1. 50 % of the loads must be above 50 % of the scale capacity;
and

65a.7.4.2. 100 % of the loads must be above 20 % of the scale capacity.

> 65a.7.5. The minimum number of days that a device is required to be in
> use is 20. A minimum number of weighing operations to be conducted
> each day for the test period is not specified; however, the weighments
> should represent the scale\'s normal in-service use.

65a.7.6. The device will be tested to at least the CLC on the second
test.

> **NOTE:** Substitution or strain test methods are acceptable as long
> as all conditions are met.

## Appendix E 

## NTEP Committee Hearings

**Interim Meetings**

**January 15-18, 2004**

**Committee Members**

-   Ross Andersen, NY, NTEP Chairman

-   Dennis Ehrhart, AZ, NCWM Chairman

-   Dave Frieders, San Francisco, CA, Chairman Elect

-   Don Onwiler, NE

-   Stephen Pahl, TX

-   Stephen Patoray, NTEP Director, Technical Advisor

-   Steven Cook, NIST Technical Advisor

**NTEP Program Operation**

-   Consolidating Device Types

    -   Helps Labs appropriately classify devices

    -   Makes searches of database more meaningful

-   Laboratory Training/Authorization

-   Round Robin Update

-   2003 Sector Meetings

**NTEP Meetings for 2004**

-   Laboratory Meeting - Ottawa, Canada April 23-28

-   Grain Analyzer - Kansas City, MO August 18-20

-   Weighing Sector - Ottawa, Canada August 29-31

-   Measuring Sector - Gulfport, MS October 22-23

**NTEP Adoption by States**

-   Report of Scale Manufacturer's Association efforts

**Amendment of Pre-NTEP Certificates**

-   Not all pre-NTEP Certificates are equal

    -   Most had little or no test data

    -   Some had virtually complete data 

-   Blanket restriction on update of pre-NTEP certificate may be too
    restrictive

**NTEP 2 - Test Data Exchanges**

-   US/Canada Mutual Recognition 

-   Bilateral Arrangements with other countries and Impact of MAA 

-   Can and will NCWM Issue R76 and R60 Certificates under the MAA?

#  

**Participation in International Standards**

-   Report on US participation in OIML Technical Committee work

-   Report on 2004 Canadian Forum on Trade Measurement

-   Report on 2004 APLMF and CIML Meetings

-   Report on US National Working Group R76/R60

**What is Harmonization?**

-   What are our obligations? 

-   Removal of technical trade barriers 

-   Harmonization does not require that standards be identical, but it
    helps

**What makes harmonization difficult?**

-   Regulatory Documents not aligned

    -   US standards directed toward the field

    -   OIML directed toward type approval

-   Unique US standards set us apart from the rest of the world,
    examples

    -   Customary units

    -   Class III and IIIL scales and LMD's

    -   Mix and Match

**Making it Happen**

-   Identify technical barriers to trade

-   Decide what to change, OIML, NCWM, or NTEP

-   Set priorities for change

-   Educate on needs and benefits

-   Promote action at appropriate level with assurance of due process

**Three-Pronged Approach**

-   NIST ILG to take US proposals to OIML technical work

-   NCWM S&T and L&R Committees to consider changes to NCWM standards

-   NTEP Sectors and Committee to consider changes to NTEP

**NTEP 6 - NCWM & US NWG**

-   Bring together experts in the field to review OIML standards
    activities

-   Needs a mix of industry experts, regulatory officials, NIST ILG
    staff

-   R76/R60 meeting in August just the first of many to come

-   Shouldn't this group be part of NCWM process of Harmonization?

**NTEP 7 - Mix and Match**

-   Enforcement problem - L&R item covers changes to NTEP regulation 

-   Is US mix-match system outdated?

    -   Can we really assess compatibility?

    -   Do we consider all necessary issues?

    -   Should we consider the OIML Apportionment of Errors?

**What is the US going to Do?**

-   Can we even participate in MAA when we have so many differences?

-   Are we prepared to accept test results from other labs under MAA?

-   Can the NTEP labs afford to meet international scrutiny?

-   Can NTEP labs compete with national labs that are subsidized?

**Critical Question**

-   How important is it for the US to be part of the international
    market in trade devices?

-   Is the ability to issue OIML Certificates under the MAA a CORE VALUE
    to the US?

[^1]: The scale may be used to weigh other loads, but only the loads
    identified are counted as part of the permanence test.

[^2]:
    > For scales with widths greater than 12 feet, this policy on range
    > of widths may not be applied retroactively. Additional testing is
    > required for devices with widths greater than 12 feet. NTEP
    > management and the NTEP laboratories on a case-by-case basis will
    > address test procedures for scales wider than 12 feet.

[^3]:
    > For scales with widths greater than 12 feet, this policy on range
    > of widths may not be applied retroactively. Additional testing is
    > required for devices with widths greater than 12 feet. NTEP
    > management and the NTEP laboratories on a case-by-case basis will
    > address test procedures for scales wider than 12 feet.

[^4]: The scale may be used to weigh other loads, but only the loads
    identified are counted as part of the permanence test.