NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Medium-Capacity Scales (Rev 09/14) DRAFT Page 1 of 12

2015 NIST EPO No. 7

Examination Procedure Outline for

Medium-Capacity Scales

It is recommended that this outline be followed as minimum criteria for examining medium-capacity portable 

platform scales and warehouse scales, including self-contained and built-in types, with the following types of 

indicating elements: beams, dials, and electronic digital-indicators. Nonretroactive requirements are followed by 

the applicable date in parentheses.

SAFETY NOTES

When excerpting this Examination Procedure Outline for duplication, the NIST EPO Safety Annex (Safety 

Considerations and Glossary of Safety Key Phrases) should be duplicated and included with this outline.

Safety policies and regulations vary among jurisdictions. It is essential that inspectors or servicepersons be 

aware of all safety regulations and policies in effect at the inspection site and practice their employer’s safety 

policies. The safety reminders included in this EPO contain general guidelines useful in alerting inspectors 

and servicepersons of the importance in taking adequate precautions to avoid personal injury. These 

guidelines can only be effective in improving safety when coupled with training in hazard recognition and 

control.

Prior to beginning any inspection, the inspector should read and be familiar with the NIST EPO Safety Annex -

“Safety Considerations and Glossary of Safety Key Phrases." The terms and key phrases in each safety reminder 

of this outline are found in the glossary of the EPO Safety Annex. The inspector is reminded of the importance of 

evaluating potential safety hazards prior to an inspection and taking adequate precautions to avoid personal injury 

or damage to the device. As a minimum, the following safety precautions should be noted and followed during 

the inspection.

Clothing Personal Protection Equipment

e.g., Safety Shoes

Electrical Hazards Support – for Scale and Test Weights

First Aid Kit Transportation of Equipment

Lifting

Also: Wet/Slick Conditions

Chemicals and Hazardous Materials 

Obstructions
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Page 2 of 12 Medium-Capacity Scales (Rev 09/14) DRAFT

SAFETY FIRST!!!

− Check the inspection site carefully for safety hazards and take appropriate precautions.

− Learn the nature of hazardous products used at or near the inspection site.

− Use personal protection equipment appropriate for the inspection site.

− Be sure that a first aid kit is available and that the kit is appropriate for the type of inspection 

activity.

H 44 General Code

and Scales Code 

References

Comments1

Inspection:

1. Zero-load balance

Zero indication .................................................................................

Digital zero indication...............................................................

Digital display of zero...............................................................

Normal balance position...................................................................

Adjustment of zero-load balance......................................................

Manual and semiautomatic zero-setting ...........................................

Balance condition as found ..............................................................

S.1.1.

S.1.1.1.(a), S.1.1.1.(b)...

G-S.5.2.2.(d) (1/1/86)

S.1.5.1.

S.2.1.1.

S.2.1.2.

UR.4.1.

E only

M & E only

B only

2. General considerations

Selection of equipment.....................................................................

Installation

In accordance with manufacturer’s instructions........................

Indicating and recording elements ............................................

Foundation, supports, and clearance .........................................

G-UR.1.1., UR.1.1.

G-UR.2.1.

G-UR.2.2.

UR.2.1., 

UR.2.4. (1/1/73)

Check to be sure the scale supports are adequate to support the 

scale and test weights equal to the capacity of the scale!

Accessibility for inspection, testing, and sealing..............................

Assistance in testing .........................................................................

Position of equipment.......................................................................

Customer indications.................................................................

Level indicating means.....................................................................

Level condition..........................................................................

G-UR.2.3.

G-UR.4.4.

G-UR.3.3.

S.1.8.3.

S.2.4.

UR.4.2.

 1 Key to abbreviations in Comments Column:

B = Beam Scales D = Dial Scales

E = Electronic digital scales U = Unmarked scales

M = Scales marked with an accuracy designation
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Medium-Capacity Scales (Rev 09/14) DRAFT Page 3 of 12

H 44 General Code

and Scales Code 

References

Comments1

Inspection (cont.):

Use

Facilitation of fraud...................................................................

Method of operation.................................................................. 

Special designs or marked for special applications...................

Environment

Suitable for the environment in which it is used .......................

Protection from environmental factors......................................

Maintenance requirements ...............................................................

Scale modification.....................................................................

G-S.2.

G-UR.3.1.

G-UR.3.2.

UR.3.5.

G-UR.1.2.

UR.2.3.

G-UR.4.1.

UR.4.3.

3. Marking.....................................................................................................

a. Marking requirements – all devices

Identification.................................................................................

Name, initials, or trademark of manufacturer or distributor......

Model identifier.........................................................................

Model identifier prefix.........................................................

Acceptable abbreviations for “model” and “number”..........

Nonrepetitive serial number......................................................

Serial number prefix..................................................................

Acceptable abbreviations for “serial” and “number”...........

Current software version or revision identifier (for not builtfor-purpose, software based devices)...................................

Version or revision identifier preface and acceptable 

abbreviations for “version,” “revision,” and 

“number” ........................................................................

NTEP CC number or CC addendum number and prefix (for 

devices that have an NTEP CC)...........................................

Devices or main elements remanufactured after 

January 1, 2002. ......................................................................

Name, initials, or trademark - last remanufacturer or 

distributor.............................................................................

Model designation if different from original model 

designation...........................................................................

Location of marking information for not built-for-purpose, 

software-based devices............................................................

Lettering........................................................................................

Operational controls, indications, and features.............................

Visibility of identification.............................................................

Interchange or reversal of parts.....................................................

b. Marking requirements – weighing/load-receiving, and indicating 

element in same housing or covered on the same CC (in addition 

to marking for all devices). ................................................................ 

Accuracy class..............................................................................

Nominal capacity..........................................................................

Value of scale division with nominal capacity, if not apparent ....

Value of "e" (if different from "d")...............................................

Temperature limits if range on the NTEP CC is narrower than 

and within − 10 °C to 40 °C (14 °F to 104 °F)..........................

S.6.3.

G-S.1.

Retroactive

Retroactive

(1/1/03)

(1/1/03)

(1/1/68)

(1/1/86)...................

(1/1/01)

(1/1/04)

(1/1/07)

(1/1/03)

G-S.1.2. (1/1/02)

(1/1/02)

(1/1/02)

G-S.1.1. (1/1/04)

G-S.7.

G-S.6. (1/1/77)

G-UR.2.1.1.

G-S.4.

S.6.3

(1/1/86)...................

Retroactive

(1/1/83)

(1/1/86)

(1/1/86)...................

(1/1/86)...................

M only

M only

M only

M only
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Page 4 of 12 Medium-Capacity Scales (Rev 09/14) DRAFT

H 44 General Code

and Scales Code 

References

Comments1

Scales designed for special purposes............................................

Inspection (cont.):

c. Marking requirements - indicating element not permanently 

attached to weighing and load-receiving element or covered by a 

separate CC (in addition to marking for all devices)..........................

Accuracy class...............................................................................

Nominal capacity...........................................................................

Value of scale division with nominal capacity, if not apparent.....

Value of "e" (if different from "d") ............................................... 

Temperature limits if range on NTEP CC is narrower than and 

within - 10 °C to 40 °C (14 °F to 104 °F) .................................

Scales designed for special purposes.............................................

Maximum number of scale divisions (nmax)...................................

d. Marking requirements – weighing and load-receiving element not 

permanently attached to indicating element or covered by a 

separate CC (in addition to marking for all devices)..........................

Accuracy class...............................................................................

Nominal capacity...........................................................................

Temperature limits if range on NTEP CC is narrower than and 

within − 10 °C to 40 °C (14 °F to 104 °F)................................

Scales designed for special purposes.............................................

Maximum number of scale divisions (nmax) ..................................

Minimum verification scale division for which the device 

complies with applicable requirements (emin)............................

e. Marking requirements - load cell with Certificate of 

Conformance (in addition to marking for all devices) .......................

Note: Requires information on a data plate attached to the 

load cell or in an accompanying document. If a 

document is provided, the serial number shall appear 

on the load cell and in the document................................

Manufacturer’s name or trademark, model designation, model 

prefix and serial number and prefix shall also be marked on 

both the load cell and in any accompanying documents.............

Accuracy class..................................................................................

Temperature limits if range on the NTEP CC is narrower than 

and within - 10 °C to 40 °C (14 °F to 104 °F) ............................

Maximum number of scale divisions (nmax) .....................................

“S” or “M” for single or multiple cell applications..........................

Direction of loading, if not obvious .................................................

Minimum dead load, maximum capacity, safe load limit, and 

load cell verification interval, Vmin .............................................

S.6.3.

(1/1/86)...................

Retroactive

(1/1/83)

(1/1/86)

(1/1/86)...................

(1/1/86)...................

(1/1/88)

S.6.3

(1/1/86)

Retroactive

(1/1/86)...................

(1/1/86)...................

(1/1/88)...................

(1/1/88)

S.6.3., S.5.4. (1/1/94).....

(1/1/88)

(1/1/91)

(1/1/88)

(1/1/86)

(1/1/88)

(1/1/88)

(1/1/88)

(1/1/88)

M only

M only

M only

M only

M only

E only
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Medium-Capacity Scales (Rev 09/14) DRAFT Page 5 of 12

H 44 General Code

and Scales Code 

References

Comments1

Inspection (cont.):

4. Design of weighing devices....................................................................

Designation of accuracy class ..........................................................

Parameters of accuracy class............................................................

Multi-interval/multiple-range scale division value...........................

Relationship of load cell verification interval to the value of the 

scale division...............................................................................

Relationship of the minimum verification scale division (emin) of 

a weighing/load-receiving element to the value of the scale 

division .......................................................................................

S.5..................................

S.5.1. (1/1/86)

S.5.2. (1/1/86)

S.5.3. Retroactive...........

S.5.4. (1/1/94)................

S.1.2.2.2.........................

M only

M & E only

M & E only

M & E only

5. Indicating and recording elements

Value of scale division .....................................................................

Digital indicating scales ...................................................................

Values of graduated intervals or increments ....................................

Recorded representations, General...................................................

Devices that indicate or record in more than one unit......................

Appropriate abbreviations

Equipment manufactured on or after January 1, 2008.............

Equipment manufactured prior to January 1, 2008 .................

Prepackaging scales only..................................................................

Tare

Value of tare division .......................................................................

Tare mechanism ...............................................................................

Combined zero-tare (“0/T”) key.......................................................

Appropriateness of design

Indicating and recording elements....................................................

Capacity indication, weight ranges, and unit weights ......................

Maximum range of initial zero-setting mechanism

Complete scales......................................................................... 

Scales with separable components............................................

Recommended minimum load..........................................................

Maximum Load ................................................................................

Weighbeams...........................................................................................

Poises......................................................................................................

Dials and balance indicators with graduations having a specific 

value.

Graduations ......................................................................................

Indicators..........................................................................................

Clearance..........................................................................................

Parallax.............................................................................................

Damping

Damping means................................................................................

Electronic elements ..........................................................................

Adjustable components ....................................................................

Provision for sealing...............................................................................

Multiple weighing elements (common provision for sealing). ........

Security seal

S.1.2. (1/1/86)................

S.1.2.1. (1/1/89)

G-S.5.3.

G-S.5.6.

G-S.5.3.1.

G-S.5.6.1.(a)

G-S.5.6.1.(b), Table 1

S.1.9.1.

S.2.3. (1/1/83)

S.2.3.

S.2.1.6.

G-S.5.

S.1.7.

S.2.1.5.(a) 

S.2.1.5.(b) (1/1/09).........

UR.3.1

UR.3.2.

S.1.5. ex S.1.5.5.............

S.1.6...............................

S.1.3.1, S.1.3.2., 

S.1.3.3............................

S.1.4.1., S.1.4.2., 

S.1.4.3............................

S.1.4.4.

S.1.4.5

S.2.5.

S.2.5.1.(b)

S.1.10.

S.1.11.(a) (1/1/79)..........

S.1.11.(b) (1/1/90).......... 

G-S.8.1. 1/1/10...............

G-UR.4.5. ......................

M only

E only

M & E only

B&D only

B&D only

B&D only

B&D only

E only

E only

E only

E only
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Page 6 of 12 Medium-Capacity Scales (Rev 09/14) DRAFT

H 44 General Code

and Scales Code 

References

Comments1

Inspection (cont.):

6. Weighing elements

Antifriction means............................................................................

Adjustable components ....................................................................

Multiple load-receiving elements.....................................................

Drainage, if wet commodities are weighed ......................................

S.4.1.

S.4.2.

S.4.3.

S.3.2., UR.3.6.

Pretest Determinations:

1. Tolerances.

Acceptance/maintenance. .................................................................

Application.......................................................................................

Principles..........................................................................................

Tolerance values:

Determine number of scale divisions (n)2

n 

Value of the verification scale division (e)

Scale capacity =

Tolerance application:

Unmarked scales.........................................................................

Unmarked scales with greater than 5000 divisions:....................

Apply the tolerances specified in Table T.1.1. 

Tolerances for Unmarked Scales and the corresponding 

T.N. paragraphs referenced in the Table.

Unmarked scales with 5000 or fewer divisions: .........................

Apply Class III, T.N.3.1., Table 6 or T.N.3.2. in 

accordance with the instructions indicated in Table 

T.1.1. Tolerances for Unmarked Scales. Also apply 

“Other Applicable Requirements” (T.N. paragraphs 

referenced in Table 1.1.)

G-T.1., G-T.2.

G-T.3.

T.N.1..............................

T.1.1.

Table T.1.1.

Table T.1.1.

M only

 2 On a multiple range or multi-interval scale the number of divisions for each weighing range or weighing segment independently 

shall not exceed the maximum specified for the accuracy class. The number of scale divisions, n, for each weighing range or 

segment is determined by dividing the scale capacity for each range or segment by the verification scale division, e, for each 

range or segment (i.e., do not add "n" for the ranges or segments together). On a scale system with multiple load receiving 

elements and multiple indications, each element considered shall not independently exceed the maximum specified for the 

accuracy class. If the system has a summing indicator, the nmax for the summed element shall not exceed the maximum specified 

for the accuracy class. (Table 3, footnote 4 added 1997).
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Medium-Capacity Scales (Rev 09/14) DRAFT Page 7 of 12

H 44 General Code

and Scales Code 

References

Comments1

Pretest Determinations (cont.):

Scales marked with an accuracy class designation...........................

Subsequent verification examinations.........................................

Multi-interval and multiple range scales.....................................

Ratio tests (scales equipped with commercial weights)..............

Maintenance tolerance values.....................................................

Acceptance tolerance values.......................................................

Tolerances for substitution test ...................................................

Tolerances for strain-load test.....................................................

Multiple indicating/recording elements ......................................

Single indicating/recording elements..........................................

Single indicating element/multiple indications...........................

Shift or section test......................................................................

Repeatability ...............................................................................

T.N.2.1.

T.N.2.3.

T.N.2.4.

T.N.2.5...........................

T.N.3.1.[ Table 6 

(Class III)]

T.N.3.2.

T.N.3.11.

T.N.3.12.

T.N.4.1.

T.N.4.2

T.N.4.3

T.N.4.4...........................

T.N.5.

B only

M only

2. Sensitivity.

Application.......................................................................................

General........................................................................................

Sensitivity requirement, equilibrium change ..............................

Sensitivity ...................................................................................

T.2.1...............................

T.2.2...............................

T.3..................................

T.N.6..............................

U&B only

U&B only

U&B only

M&B only

3. Discrimination.

Analog automatic indicating (includes balance indicators with 

graduations having specific values)..............................................

Digital automatic indicating..........................................................

T.N.7.1...........................

T.N.7.2...........................

M&D only

E only

4. Minimum test weights and test loads ...................................................... N.3., Table 4

Test Notes:

1. Error Weights. For scales equipped with nonautomatic (beam) 

indication, balance small error weights on the platform, the smallest 

weight being equal to the minimum tolerance value at maximum test 

load.

2. Check repeatability and agreement between indications throughout 

the test.

Repeatability of indications..............................................................

Digital indication and representation................................................

G-S.5.4., T.N.5.

G-S.5.2.2.

3. Recheck zero-load balance each time test load is removed.

Zero-load balance change.................................................................

Abnormal performance.....................................................................

N.1.9.

G-UR.4.2.
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Page 8 of 12 Medium-Capacity Scales (Rev 09/14) DRAFT

H 44 General Code

and Scales Code 

References

Comments1

Test Notes (cont.):

4. If scale is equipped with a ticket printer or type-recording beam, 

print ticket at each test load. Check effectiveness of motion 

detection.

Digital indication and representation................................................

Recorded representations

Also verify that any options for obtaining a recorded 

representation are appropriate. The customer may be given 

the option of not receiving the recorded representation. If 

the system is equipped with the capability, the customer may 

also be given the option of receiving the recorded 

representation electronically in lieu of or in addition to a hard 

copy.............................................................................................

Money value, mathematical agreement............................................

Motion detection ..............................................................................

Value of the indicated and recorded scale division ..........................

G-S.5.2.2........................

G-S.5.6.

G-S.5.5.

S.2.5.1.(b)

UR.1.3.(1/1/86)

E only

5. If, during the conduct of the test, the performance of the device is 

questionable with respect to the zone of uncertainty or the width of 

zero, adequate tests should be conducted to determine compliance; 

however, they must be conducted under controlled conditions.

Digital indicating elements...............................................................

Discrimination test ...........................................................................

Digital device ...................................................................................

S.1.1.1.(a), S.1.1.1.(b) 

(1/1/93) ..........................

N.1.5. (1/1/86) ...............

N.1.5.1. ..........................

E only

M, D, & E

only

E only

6. If the device is equipped with operational features such as 

programmable tare, multiple tare memory, weigh-in/weigh-out, or 

multiple weighing elements, verify proper operation and 

appropriateness. ......................................................................................

Maintenance of equipment ...............................................................

Abnormal performance.....................................................................

Multiple load-receiving elements.....................................................

Manual gross weight entry ...............................................................

.......................................

G-UR.4.1.

G-UR.4.2.

S.4.3.

S.1.12. (1/1/93) and 

(1/1/05), UR.3.9.

E only

Test:

WEAR SAFETY SHOES!

USE PROPER LIFTING TECHNIQUES!

1. Sensitivity test at zero load...................................................................... N.1.4. ............................. B only

2. Discrimination test at zero load, if applicable ......................................... N.1.5. (1/1/86) ............... M,D,&E

only
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Medium-Capacity Scales (Rev 09/14) DRAFT Page 9 of 12

H 44 General Code

and Scales Code 

References

Comments1

Test (cont.):

Digital Device.......................................................................................... N.1.5.1. .......................... E only

3. Increasing-load test (with the test load approximately centered) ............

Initial verification – to capacity...............................................................

Subsequent verification

a. Small scales - at minimum load (20d), 500d, 2000d, 4000d to 

capacity

b. Larger scales – at minimum load (20d), 500d, 2000d, 4000d to 

capacity or, at tolerance intervals to Table 4 values. 

c. Beam scales - at a minimum, test at or near half and full 

capacity on each weighbeam bar. Scales not equipped with a 

full capacity beam should be ratio tested by applying field 

standard weights, specifically designed for this purpose, on the 

counterpoise hanger. At each test load, test scale counterpoise 

weights by substituting them for field standard weights. If there 

is a noticeable change in indication, remove the counterpoise 

weight from service until it can be determined that it meets the 

requirements in the Weights Code of NIST Handbook 44...............

N.1.1.

N.3.

N.1.7. ............................. B only

4. Shift test:

Scales with a nominal capacity of 1000 lb or less:..................................

Use one-third capacity test load (defined as test weights in amounts 

of at least 30 % of scale capacity, but not to exceed 35 % of scale 

capacity) centered as nearly as possible in each quadrant of the loadreceiving element using the prescribed test pattern as shown in 

Figure 1.

Scales with a nominal capacity greater than 1000 lb...............................

Use one-third capacity test load (as defined above for Scales with a 

nominal capacity of 1000 lb or less) centered as nearly as possible in 

each quadrant of the load-receiving element as shown in figure 1 or

one-quarter capacity test load centered as nearly as possible over 

each corner of the load-receiving element as shown in figure 2.

N.1.3.7. (a)

N.1.3.7. (b)
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

Page 10 of 12 Medium-Capacity Scales (Rev 09/14) DRAFT

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and Scales Code 

References

Comments1

Test (cont.):

Shift-Test Positions 

Medium-Capacity Platform Scales

Figure 1 ............................................................... Figure 2

Position 

1

Position 

2 Position 

1

Position 

2

Position 

4

Position 

3 Position 

4

Position 

3

The above test pattern indicates 

the correct positions of a onethird capacity shift-test load 

and may be applied when 

performing the shift test on any 

medium capacity platform 

scale. 

The above alternative test 

pattern indicates the correct 

positions of a one-quarter

capacity shift-test load and may 

be applied alternatively to the 

positions shown and test loads 

indicated in Figure 1 when 

performing a shift test on 

medium capacity platform scales 

having a nominal capacity 

greater than 1000 lb. 

Note: When multiple field standards are used as the prescribed shift-test load, do not concentrate those field standards in 

a test pattern that would be less than if that same load were comprised of only a single field standard. 

5. Sensitivity test at maximum test load ......................................................

Discrimination test at maximum test load (if applicable) .......................

N.1.4. .............................

N.1.5.(1/1/86) ................

B only

M, D, & E 

only

6. RFI/EMI tests (if a problem is suspected) (operate each potential 

source one at a time)...............................................................................

Radio Frequency Interference (RFI)

Electromagnetic Interference (EMI)

Testing with non

associated equipment ................................................................

Environment..............................................................................

Associated and nonassociated equipment .................................

Abnormal performance .............................................................

Tolerance RFI/EMI tests...........................................................

N.1.6. .............................

G-N.2.

G-UR.1.2.

G-UR.3.2

G-UR.4.2

T.N.9..............................

E only

E only
NIST Handbook 112 (2015)

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Comments1

Test (cont.):

7. Test for over-capacity indication............................................................. S.1.7.

8. Decreasing-load test................................................................................

Scales marked with an accuracy designation..........................................

For scales having 1000 divisions or greater, tests shall be 

conducted with test loads equal to the maximum test load at each 

tolerance value. For example, on a Class III scale, at test loads 

equal to 4000d, 2000d, and 500d. For marked scales with fewer 

than 1000 divisions, the test load shall be equal to one-half of the 

maximum load applied in the increasing-load test.

All other scales .....................................................................................

The test load shall be equal to one-half of the maximum load 

applies in the increasing-load test.

N.1.2. .............................

N.1.2.1. .......................... 

N.1.2.2.

D & E only

M only

9. Recheck zero-load balance ..................................................................... N.1.9., G-UR.4.2.

10. Substitution or strain load test ................................................................

Scales shall be tested using at least the minimum amount of test 

weights and to the minimum test loads specified in Table 4. In 

instances where the amount of test weight available for testing is 

equal to or greater than the minimum required by Table 4, but 

less than the amount of test load required, not more than three

substitutions are to be performed to achieve a test load that equals 

at least the minimum required. 

Where practical, scales should be tested to capacity on an initial 

verification and to at least used capacity on subsequent tests. In 

accordance with Table 4, not more than three substitutions shall 

be used during substitution testing, after which the tolerances for 

strain load tests apply. 

Table 4.

11. Recheck zero load balance ..................................................................... N.1.9., G-UR.4.2.

12. Conduct out-of-level test (portable scales without level-indicating 

means only). ........................................................................................... S.2.4.
NIST Handbook 112 (2015)

EPO – No. 7, Medium-Capacity Scales

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References

Comments1

Test (cont.):

13. Test for proper design of automatic zero-tracking mechanism, if 

scale is so equipped:

Scales manufactured between 1/1/81 and 1/1/07.....................................

Scales manufactured on or after 1/1/07 ...................................................

Under normal operating conditions the maximum load that can be 

“rezeroed” when placed on or removed from the platform all at once 

shall be 0.6 scale division for scales manufactured between January 

1, 1981, and January 1, 2007, and 0.5 scale division for scales 

manufactured on or after January 1, 2007. 

S.2.1.3.1.(c)....................

S.2.1.3.2.(b) ...................

E only

E only

14. Check proper design of tare auto-clear, if scale is so equipped.............. S.2.3. (1/1/83)................ E only

15. If scale is equipped with a semi-automatic zero-setting mechanism, 

test the effectiveness of motion detection............................................... S.2.1.2............................ E only

16. Establish correct zero-load balance. .......................................................

After all equipment at a location has been tested, review results to 

determine compliance with equipment maintenance and use of 

adjustments..............................................................................................

N.1.9., G-UR.4.2.

G-UR.4.1., G-UR.4.3.