NlS/fL

TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 52G

U.S. DEPARTMENT OF COMMERCE

Nationai Bureau of Standards
NBS COLLABORATIVE REFERENCE PROGRAMS

TAPPI Paper and Board (6 times per year)

Bursting strength

Tearing strength

Tensile breaking strength

Elongation to break

Tensile energy absorption

Folding endurance

Stiffness

Air resistance

Grammage

Smoothness

Surface pick strength

K & N ink absorption

pH

Opacity

Blue reflectance (brightness)

Specular gloss, 75°

Thickness

Concora (flat crush)

Ring crush

FKBG-API Containerboard (48 times per year)

Mullen burst of linerboard

Concora test of medium

MCCA Color and Appearance (4 times per year)

Gloss at 60°

Color and color difference

Retroref lectivity

Rubber (4 times per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

ASTM Textiles (3 times per year)

Flammability (FF3-71 and FF5-74)

ASTM Cement (2 times per year)

Chemical (11 chemical components)

Physical (8 characteristics)

AASHTO Bituminous

Asphalt cement (2 times per year)

Cutbacks (once a year)

let

saafl

Collaborative Reference Programs

B360 Polymer Building

National Bureau of Standards

Washington, D.C. 20234
TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

Report No. 52G

R. G. Powell

TAPPI-NBS Research Associate

Collaborative Testing Services, Inc.

E. B. Randall, Jr., J. Horlick

Laboratory Evaluation Technology Section

Standards Application and Analysis Division

Institute for Applied Technology

NBSIR 78-1341

U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

INTRODUCTION

Reports 52S and 52G comprise the fourth set of reports for the

77-78 program year. Participants in tests which involve strength

properties of paper will receive only the S report; those in

tests which measure other properties will receive only the G

report

.

Please note that some changes have been made in the computergenerated plots. These changes should aid participants in

familiarizing themselves with the International System of

Units (SI) as it applies to TAPPI test methods. Wherever

possible, Grand Means in SI units have been added at the top

of the plots, and scales in SI units have been added to the axes allowing the reader to compare means and variability

in common units and SI units for the same data. On all plots,

sample codes and unit of test have been shifted to new positions.

Notes and comments for individual laboratories and "Best Values"

applicable to a particular method are given following Table 1 for each method. See page 4 of this report for an explanation

of "Best Values." Please do not confuse these best values with

provisional values included with the samples to detect serious

discrepancies at the time of test. NBS results, identified as L502 in the optical tests are included in some of the tables.

If there are any questions on the notes, the analyses, or the

reports in general, contact Edwin B. Randall, Robert G. Powell,

or Jeffrey Horlick on 301/921-2946.

Edwin B. Randall, Jr., Administrator

TAPPI Collaborative Reference Program

Laboratory Evaluation Technology Section

June 19, 1978
TAPPI-NBS COLLABORATIVE REFERENCE PROGRAM

BACKGROUND AND PURPOSE

In 1969, the National Bureau of Standards and the Technical Association of the Pulp and

Paper Industry established a collaborative reference program to provide a participating

laboratory with a means to check periodically the level and uniformity of its testing in

comparison with that of other laboratories.

The interchange of paper and board products and of the raw materials for these products

requires agreement among raw material suppliers, paper and board producers, converters,

distributors, retailers, commercial testing laboratories, user organizations and the

ultimate consumer as to the meaning of test results, an agreement that cannot be achieved

without accurate and precise testing. This program is designed to help assure agreement.

HOW THE PROGRAM WORKS

Participants Select the Tests in which they wish to participate. This choice is made on joining the program, but additional tests may be added at any time. Also new participants

may enter the program at any time.

Test Samples are Distributed Bimonthly; i.e. every 2 months.

Provisional Values are Provided with the Samples for one or both of the test levels, depend

ing on method. The provisional values permit serious discrepancies to be detected without

delay. (It is left to the discretion of the laboratory supervisor as to whether these

values should be known to the operator.)

Each Participant Tests the Samples , following instructions provided for each test method.

The full check on a single instrument should normally take no more than 30 minutes. The

test results are then sent to NBS for analysis. The participant is also asked to report

other information relevant to an accurate analysis, such as test conditions and the instruments used.

Industry Means, Best Values and Other Statistics are developed from the data by NBS. The

best values are estimates based on a careful examination of all data, both current and past

with special attention to results obtained by the National Bureau of Standards and other

recognized reference laboratories in this and other countries.

A Quick Report is Prepared for each participating laboratory reporting data on time. This

report shows the industry mean values, and the deviations of the laboratory's results from

these values for each test method.

A Longer Summary Report, Showing the Data from all Participants, is also prepared. In

the summary report, of which this report is an example, each laboratory is identified by

a code number so that the information is maintained on a confidential basis. However,

instruments are identified by type so participants can compare their results with

those obtained on similar instruments of different manufacture. This report includes

test averages, best values and standard deviations for individual participants and for

the group as a whole. A participant should be able to readily determine the level and

variability of his results in comparison with those of the other laboratories.

Repeatability and Reproducibility Statements such as Contained in ASTM, TAPP I and ISO

Standards are included at the end of the report. Participants can check their perfor- mance level against the precision statement given in the test method or specification.
TABLE OF CONTENTS

Analyses In This Report

PAGE

i

ii

lv

1

5

8

11

13

14

19

20

21

22

23

24

29

31

33

36

39

41

44

49

52

Introduction

Description of Program

Metric Conversion Table

Key to tables and graphs

40-1 Air Resistance, Gurley Oil type

40-

2 Air Resistance, Sheffield type

41-

1 Air Resistance, Gurley Mercury type

44-

1 Smoothness, Parker Printsurf

45-

1 Smoothness, Sheffield type

45-2 Smoothness, Bekk type

47-1 Smoothness, Bendtsen type

56-

1 K & N Ink Absorption

57-

1 pH, Cold Extraction

57-2 pH, Hot Extraction

60-1 Opacity, White (89%) Backing

60-2 Opacity, Paper Backing, B & L type

60-3 Opacity, Paper Backing, Elrepho type

65-1 Blue Reflectance (Brightness) , Directional

65-2 Blue Reflectance, Diffuse, Elrepho (Gloss Trap)

65-3 Blue Reflectance, Diffuse, Elrepho (No Gloss Trap)

75-1 Specular Gloss, 75°

90-1 Thickness (Caliper)

95-1 Grammage (Basis' Weight)

Summary

Analyses In The S Report

10-1 Bursting Strength - Up to 45 psi

10-

2 Bursting Strength - Up to 45 psi, Air Clamps

11-

1 Bursting Strength - Up to 100 psi

15-1 Tearing Strength - Deep Cutout

17-1 Tearing Strength - No Cutout

19-

1 Tensile Breaking Strength - Packaging Papers

20-

1 Tensile Breaking Strength - Printing Papers, CRE

20-2 Tensile Breaking Strength - Printing Papers, Pendulum

25-

1 Tensile Energy Absorption - Packaging Papers

26-

1 Tensile Energy Absorption - Printing Papers

28-

1 Elongation to Break - Packaging Papers

29-

1 Elongation to Break - Printing Papers

30-

1 Folding endurance, MIT type

35-

1 Stiffness, Gurley

36-

1 Stiffness, Taber

49-

1 Surface Pick Strength, IGT

50-

1 Surface Pick Strength, Wax

91-1 Concora (Flat Crush)

96-1 Ring Crush

iii
TABLE OF CONVERSION FACTORS TO METRIC (SI) UNITS

Physical To Convert Multiply

Quantity From To by

Bursting strength psi kPa 6.895

kg/ cm

2 kPa 98.07

bar kPa 100.00

Tearing strength g mN 9.807

Tensile strength lb/ in. kN/ra .1751

lb/ 0.5 in. kN/m .3502

lb/15 mm kN/m .2965

kg/15 ram kN/m .6538

kg/25 mm kN/m .3923

kg/mm kN/m 9.807

Tensile energy absorption ft-lb/ft

2 J/m2 14.59

in. -lb/ in.

2 J/m2 175.1

kg-m/m2 J/m2 9.807

Bending stiffness g. cm yN*m 98.07

Flat-crush strength (Concora) lb N 4.448

Ring-crush (TAPPI) lb N 4.448

(ISO) lb/6. 00 in. kN/m 0.0292

Thickness rail ym 25.40

iv
93% ELLIPSE - Lengths of the major and minor axes of the

ellipse and the angle that the major axis

makes with the horizontal axis.

AVG R. SDR - Average of the R. SDR for the two samples;

an indication of the laboratory's precision

of repeated measurements.

Graph - For each laboratory the MEAN for the second

sample is plotted against the MEAN for the

first sample, with each point representing

a laboratory. The horizontal and vertical

lines are the GRAND MEANS . The dashed line

is drawn at 45°. The solid sloping line,

which may or may not lie close to the 45°

line, is along the major axis of the error ellipse. The ellipse is drawn so that, on

the average, it will include 95% of the points

representing the laboratories.

Plotted symbols are as explained above (under

F) , except that an 'S' is plotted as an 'O'.

A participant whose plotted point falls outside of the ellipse should carefully reexamine

the testing procedure he is following.

The graph is plotted with an ellipse when there

are 20 or more laboratories in the analysis.

When there are 10 through 19 laboratories in

the analysis the graph is plotted but the ellipse

is omitted. When there are fewer than 10 laboratories retained in the analysis the graph is not

plotted.

The International System of Units (SI) is used on

the plots wherever possible to aid participants

in familiarizing themselves with SI. Grand means

in SI units are given at the top of the plot, and

supplementary scales in SI units are drawn along

the axes allowing the reader to compare means and

variability in common units and SI units for the same data.

3
Summary - (At end of

report)

In addition to several quantities already defined

above, the summary shows the following values for

each test method:

REPL CRP - The number of replicate test determinations used

in this Collaborative Reference Program.

REPL TAPPI - The number of replicate test determinations in a test result required by the applicable TAPPI

Standard or assumed here if there is no TAPPI

Standard. This quantity is needed in the computation of TAPPI repeatability and reproducibility

from the SD OF MEANS and the AVER SDR. See TAPPI

Standard T1206 for definitions and computations.

REPEAT - TAPPI repeatability, a measure of the withinlaboratory precision of a test result.

REPROD - TAPPI reproducibility, a measure of the betweenlaboratory precision of a test result.

Best values - Given at the end of Table 1 for each method

for which sufficient information is available.

These best values are estimates based on a careful examination of all data, both current

and past, with special attention to results

obtained by the National Bureau of Standards

and other recognized reference laboratories

in this and other countries. All participants

using equipment that is standard for the

analysis should be able to achieve results

within the plus-minus (+) limits, when these

are shown along with the best values.

4
REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T40-1 TABLE 1 AIR RESISTANCE. GURLEY UNITS (SECONDS/IOC CO

TAPPI STANDARD T460 OS-75. AIR RESISTANCE OF PAPER

LAB SAMPLE

H49 PRINTING

109 GRAMS PBR SQUARE METER

SAMPLE

JA5 PRINTING

86 GRAMS PER SQUARE METER TEST D. • 10 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI 00 29.10 -1.84 •1.12 1 .85 1 .OA 12.19 -.03 -•05 1.00 1.19 4 0 D 0 LI 00

LI 0 7 32.40 1.46 .89 2.12 1.19 13.30 1.08 1.93 .82 . 98 4 0 D 0 LI 07

LI 21 28.80 -2.14 -1 .30 1 .87 1 . 05 12.00 -.22 -•39 .82 . 97 40 D 0 LI 21

LI 2 2 30.71 -.23 -. 1A 2.A5 1.37 12.21 -.01 -.01 .87 1 .OA 4 0 D 0 LI 22

Li 2 3 30.29 -.65 -.39 2.72 1.53 12.52 .30 .54 .86 1.02 4 0 D 0 LI 23

LI 24G 27.90 -3.04 -1.85 2. 51 1. A1 11.66 -.56 -1 .00 .97 1.16 40D 0 LI 24G

LI 2 5 31 .29 .35 .22 2.51 1 .AO 11.89 -.33 -.59 .63 .75 4 0 D 0 LI 25

LI 2 7 32.78 1.84 1.12 2.01 1.12 11.80 -. A2 -.75 .81 .96 40D 0 LI 27

LI 2 8 29.20 -1.74 -1.06 1.03 .58 12.00 -.22 -.39 .67 .79 4 0 D 0 LI 28

LI 4 8 28.78 -2.16 -1.31 2.10 1.17 11 . A2 -.80 -1.43 .64 .76 4 0 D 0 LI 48

LI 53 29.70 -1.24 -.75 1.16 .65 12.28 .06 • 11 .68 .80 40D 0 LI 53

LI 58 28. 80 -2.14 -1.30 1.32 . 7 A 11.90 -.32 -.57 .88 1 .OA 4 0 D 0 LI 58

LI 59 33.73 2.79 1.70 1.73 .97 12.SA . 32 .58 .89 1 .06 40 D 0 LI 59

LI 63 34.10 3.16 1.93 2.0A 1 . 1 A 13.35 1.13 2.02 1 .04 1 .2A 4 OD 0 LI 63

LI 66 33.91 2.97 1.81 1 . 3 A .75 13.09 .87 1.56 .92 1.10 4 0 D 0 Li 66

LI 7 A 32.14 1.20 .73 1.60 .90 12.76 . 5 A .97 1.20 1 . A2 4 0 D 0 LI 74

LI 76 38.45 7.51 A. 58 2.29 1.28 18.75 6.53 11.67 2.82 3.35 4 0 D u LI 76 L182G 31 . 80 .66 .53 2.0A 1 . 1A 12.08 -.1 A -.25 .92 1 . 09 4 0 D 0 LI 82G

Li 83 33.40 2.46 1 .50 1 .A3 . 80 12.85 .63 1.1? 1 .28 1 .52 4 0 D 0 LI 83 L190C 31.20 .26 .16 2.20 1.23 12.59 .37 .66 • 53 .63 4 0 D 0 LI 90C

LI 90 R 30.00 -.94 -.57 1.05 . 59 12.05 -.17 -.30 .79 . 9A 40D 0 LI 90

R

L2 2 3 32.40 1 . 46 . 89 2.07 1.16 12.90 .68 1 .22 . 00 .95 4 0 D 0 L2 2 3 L224 29.00 -1.94 -1.18 3.08 1.72 9.56 -2.6 6 -4.75 .70 .83 40D X L224

L2 3 0G 30.10 -.84 -.51 1 .A5 . 81 12.00 -.22 -.39 .82 . 97 4 0 D Pi L230G

L2 3 2 30.12 -.82 -.50 1.77 .99 12.18 -. OA -.07 .94 1.12 40 D 0 L2 32 L238A 34.80 3.86 2.35 1 .87 1 . 05 12.03 -.19 -.34 1.17 1.39 *0D * L23PA

L241 28.50 -2.44 -1 .AS 1 . 08 . 60 11.80 -.A2 -.75 .42 .50 4 0 D 0 L241

L2 4 2 30.60 -. 34 -.20 1 .90 1 . 07 12.32 .10 .18 1.04 1.23 4 OD 0 L242 L243G 31 .00 .06 .OA . 82 . A6 12.35 . 1 3 • 24 .72 . 86 4 0 D 0 L243G

L259 30.05 -.89 -.5A 1 • 6C . 89 12. 2A .02 . 04 1.01 1 .20 40D 0 L259

L261 31 .25 .31 .19 2.2A 1 . 25 11.90 -.32 -.57 .51 .61 4 0 D 0 L261 L262G 30.06 -. 88 -.53 .70 . 39 1 A. 28 2.06 3.68 .96 1 . 1 A 4 0 D X L262G

L265 30.56 -.38 -.23 1.73 . 97 12. A8 .26 . 47 .92 1 . 09 4 OD 0 L265

L2 7 8 30.68 -.26 -.16 2 • 1 A 1.20 11.86 -.36 -.64 .66 .78 4 0 D 0 L278

L3 01 30.90 -.04 -.02 1 .29 .72 11.90 -.32 -.57 .99 1.18 4 0 D 0 L3P1

L3 0 8 32.00 1 . 06 .65 1.25 .70 13. 2A 1 . 02 1 .83 1.48 1 .76 4 0 D 0 L308

L31 2 31 .00 . 06 • OA 1 . 89 1 . 06 12. 50 .28 .50 1 .35 1.61 4 0 D 0 L31 2 L321 32.60 1.66 1.01 1 .A3 .80 11.20 -1.02 -1 .82 • 92 1.09 4 0 D * L321 L324 27.89 -3. 05 -1.85 1.75 .98 11 . 53 -.69 -1 .23 .40 . A8 4CD 5 L324

L32 6 31 .80 . 86 .53 2.39 1 . 3A 13.28 1.06 1 .90 .96 1 .1 A 4 0 D 0 L326

L32 8 29.96 -.98 -.59 1 .88 1.05 12.11 -.11 -.19 .68 . 80 4 0 D 0 L328

L341 30.66 -.28 -.17 .88 . A 9 12. A6 . 2 A . 43 .45 .53 4 OD 0 L341

L3 4 4 29.96 -.98 -.59 1 . 58 . 88 11.80 -• A2 -.75 .92 1.09 4 0 D 0 L344

L376 33.69 2.75 1 .68 2.11 1.18 13.05 .83 1 . 49 .67 .80 4 0 D 0 L376

L37 8 31 .4* .50 .31 2.19 1 .23 12.96 • 7A 1.33 1.40 1 . 66 4 0 D 0 L378 L396M 31 .50 .56 .3A 2.55 1.A3 11 .AO -.82 -1 .46 .70 .83 4 0 D 0 L396M

L561 29.40 -1.54 -.93 1 .A3 . 80 11.50 -.72 -1 .28 .97 1.15 40D 0 L561

L56 7 30.00 -.94 -.57 2.05 1.15 12.06 -.16 -.28 .66 .76 4 0 D 9 L567

L57 6 29.96 -.98 -.59 1.82 1 . 02 11.22 -1 . 00 -1.78 .57 .68 4 0 D 0 L576 L599 31.14 .20 .12 1.71 . 96 12.11 -.11 -.19 .63 .75 40D 0 L599

L604 30.90 -.04 -.02 1.52 , 85 11.60 • *> (VI -1.10 .84 1 .00 40 D 0 L60A

GR. MEAN • 30.94 GURLEY 1UNITS GRAND MEAN - 12.22 GURLEY UNITS TEST DETERMINATIONS - 10 SD MEANS • 1.64 GURLEY UNITS AVERAGE SDR

SD 0F MEANS -

- 1.79 GURLBY UNITS

. 56 GURLEY UNITS AVERAGE SDR - . 8A 48 LABS IN GRAND GURLEY UNITS MEANS

Li 1 5 28.30 <0 <* • OJ -1 .60 2.67 1 . 49 15.00 2.78 4.97 1.25 1 .40 4 0 U LI 15 L236 32.25 1.31 .80 1.19 • 67 12.77 .55 .99 .65 . 77 4 OE L236

L291 31.60 . 66 .40 1.65 .92 12. AO .18 . 33 .52 • 61 40 U L291 LA8A 25.22 -5.72 -3.A8 1.09 T0TAL NUMBER 9F LABORATORIES REPORTING -

• 61 55 11.16 -1 .06 -1 .89 .57 . 68 4 OH L484

Best Values: H49 30.8 + 2.9 Gurley units

J45 12.2 + 0.6 Gurley units

The following laboratories were omitted from the

grand means because of extreme test results: 176 5
HEP0RT NO. 520 TAPPI COLLABORATIVE REFERENCE PROGRAM HAECR 1976 ANALYSIS T40-1 TABLE 2 AIR RESISTANCE. GURLEY UNITS (SECONDS/1 00 CC) TAPPI STANDARD T460 0S-75, AIR RESISTANCE OF PAPBR

LAB MEANS COORDINATES AVG

CODE F H49 J4S MAJOR MINOR R. SDR VAR PROPERTY-- -TEST INSTRUMENT- --CONDI T ION

S

L484 25 .22 11.16 -5. 81 .09 .65 40 H AIR RESISTANCE. REGMED- TYPE GURLEY DBNSOMBTER -OIL FLerATIBK

L32 4 0 27.89 11.53 -3. 1 2 -.07 .73 40 D AIR RESISTANCE. GURLEY DENS6 METER - OIL FLaTATIdK

LI 2 4G 0 27.90 11.66 -3. 09 .05 1 .28 40 D AIR RESISTANCE, GURLEY DENS0MBTER - OIL FLaTATlaK

LI 1 5 28.30 15.00 -2.03 3.25 1 .49 40U AIR RESISTANCE, SHEFFIELD IN GURLEY UNITS

L241 0 28.50 11.80 -2.47 .07 .55 40D AIR RESISTANCE, GURLEY DENS0METER - 01 L FLaTATlaK

LI 48 0 28.78 11.43 -2.27 -.36 .97 40 D AIR RESISTANCE, GURLEY DENS0METER OIL FLerATieN

Li 58 0 28.80 11.90 -2.16 .11 . 89 40D AIR RESI STANCE. GURLEY D2NS0METER OIL PLaTATiaw

Li 21 0 28.80 12. CO -2. 14 .21 1 .01 40D AIR RESISTANCE, GURLEY DBNSO METER OIL FLaTATIdK

L2 2 4 X 29.00 9. 56 -2.42 -2.22 1 .28 40 D AIR RESISTANCE. GURLBY DENS0METE R OIL PLdTATIdK

Li 0 0 0 29.10 12.19 -1.80 .33 1 .11 40 D AIR RESISTANCE, GURLBY DENS0 METER OIL FLaTATISN

Li 2 8 0 29.20 12.00 -1.74 .13 .68 40 D AIR RESISTANCE, GURLBY DENS0METER 0IL FLaTATIPN

L561 0 29.40 11.50 -1.65 -.40 .98 4 0 D AIR RESISTANCE, GURLEY DENSOMETER OIL FLeTATieF

Li 5 3 0 29.70 12.28 -1.20 .30 .73 40 D AIR RESISTANCE. GURLBY DENSO METER OIL FLaTATlaK

L576 0 29.56 11.22 -1.15 -.79 .85 40D AIR RESISTANCE, GURLEY DBNSOMBTER OIL FLaTATI0K

L3 4 4 0 29.96 11.80 -1. 04 -.22 .99 40 D AIR RESISTANCE, GURLEY DENS0MBTER 0IL FLaTATlaK

L328 0 29.56 12.11 -.98 .09 .93 40 D AIR RESISTANCE, GURLEY DBNS0METER OIL FLaTATlaK

L557 0 30.00 12.06 -.95 .03 .97 40 D AIR RESISTANCE. GURLEY DENS0METER OIL PLOTATIKK

Li 9 0S 0 30.00 12.05 -.95 .02 .77 40 D AIR RESISTANCE. GURLEY DENS0METER OIL FLaTATlaK

L259 0 30.05 12.24 -. 86 .20 1 .05 40 D AIR RESISTANCE. GURLEY DENS0METER OIL FLaTATlaK

L262G X 30.06 14.28 -.4 5 2.19 .76 40D AIR RESISTANCE. GURLEY DBNS0METER OIL FLaTATlaK

L230G 0 30. 10 12.00 -.86 -.05 .89 40 D AIR RESISTANCE, GURLBY DENSO METER OIL FLaTATlaK

L2 3 2 0 30.12 12.1 8 -. 81 .12 1 .05 40 D AIR RESISTANCE, GURLEY DENSOMETER OIL FLaTATlaK

LI 2 3 0 30.29 12.52 -.57 .42 1 .27 40 D AIR RESISTANCE, GURLEY DENS0METER OIL FLaTATlaK

L265 0 30.56 12.46 -.32 .33 1 .03 40 D AIR RESISTANCE, GURLEY DSNSOUBTER OIL PLaTATION

L242 0 30.60 12.32 -.31 .17 1 .15 40 D AIR RESISTANCE. GURLBY DBNSOMBTER OIL FLaTATlaK

L341 0 30.66 12.46 -.22 .29 .51 4 OD AIR RESISTANCE, GURLEY DENSOMETER OIL PLaTATI8K

L278 0 30.68 11.86 -.32 -.30 .99 40 D AIR RESISTANCE, GURLBY DBNSOMBTBR OIL FLaTATlaK

Li 2 2 0 30. 7i 12.21 -.22 .04 1 .20 40 D AIR RESISTANCE, GURLBY DENSOMETER OIL FLaTATlaK

L6 0 4 0 30.90 11.60 -.16 -.60 .93 40 D AIR RESISTANCE, GURLBY DENSO METFR OIL FLaTATlaK

L3 01 0 30.90 11.90 -.10 -.30 .95 40 D AIR RESISTANCE, GURLEY DENSOMETER OIL FLaTATlaK

L2430 0 31.00 12. 35 . 09 .12 .66 400 AIR RESISTANCE, GURLEY DENSOMETER OIL FLeTATISK

L3 i 2 0 31 .00 12.50 .12 .26 1 .33 40 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLaTATlaK

L599 0 31.14 12.11 . 1 8 -.15 .85 40D AIR RESISTANCE. GURLEY DBNSOMETER OIL FLaTATlaK

L190C 0 31.20 12.59 .33 .31 .93 40 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLaTATlaK

L2 61 0 31.25 11.90 .25 -.37 .93 40D AIR RESISTANCE. GURLBY DBNSOMETER OIL PLOTATiaK

Li 2 5 0 31.29 11.89 .28 -.39 1 .08 40 D AIR RESISTANCE. GURLBY DENSOMETER OIL FLaTATlaK

L37 8 0 31 .44 12.96 . 64 .63 1 .44 4 0 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLaTATlaK

L396M 0 31 .50 11.40 . 39 -.91 1 .13 4 0 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLaTATlaK

L291 31 .60 12.40 .69 .05 .77 40 U AIR RESISTANCE, SHEFFIELD IN GURLEY UNITS

LI 82

G

0 31.80 12.08 .62 -.31 1 .12 400 AIR RESISTANCE. GURLEY DENSO MPTER OIL FLOTATION

L3 2 6 0 31 .80 13.28 1.06 .87 1 .24 4 0 D AIR RESISTANCE, GUPLBY DENSOMETER OIL FLOTATION

L308 0 32.00 13.24 1.25 .79 1 .23 4 0 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLOTATION

LI 74 0 32.14 12.76 1.29 .29 1 .16 40 D AIR RESISTANCE. GURLEY DBNSOMBTER OIL FLOTATION

L2 3 6 32.25 12.77 1.40 .28 .72 40E AIR RESISTANCE, GURLEY DENSOMETER OIL FLOTATION, 20C,65*RH

LI 07 6 32.40 13.30 1 . 65 .77 1 .08 40 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLOTATION

L2 2 3 0 32.40 12.90 1.57 .38 1 .05 4 0 D AIR RESISTANCE, GURLEY DENSOMETER OIL FLOTATION

L3 21 « 32.60 11.20 1.43 -1.33 .95 40 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLOTATION

Li 27 0 32.78 11.80 1 . 73 -.77 1 .04 40 D AIR RESISTANCE, GURLBY DSNSO METER OIL FLOTATION

Li 83 0 33.40 12.85 2. 54 .13 1 .16 40 D AIR RESISTANCE, GURLEY DENSOMETER OIL FLOTATION

L376 0 33.69 13.05 2. 86 .27 .99 40 D AIR RESISTANCE, GURLEY DBNSOMETER OIL FLOTATION

Li 59 0 33.73 12.54 2.80 -.24 1 .01 40 D AI R RESISTANCE. GURLEY DENSOMETER OIL flotation

Li 66 0 33.91 13.09 3. 09 .27 .92 4 0 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLOTATION

Li 63 0 34.10 13.35 3. 33 .49 1 .19 40 D AI R RESISTANCE. GURLEY DENSOMETER OIL FLOTATION

L238A • 34.80 12.03 3. 75 -.95 1 .22 40 D AIK RESISTANCE. GURLBY DENSOMETER OIL FLOTATION

Li 76 * 38.45 18.75 8. 66 4.92 2 .31 40 D AIR RESISTANCE. GURLEY DENSOMETER OIL FLOTATION

GMEANS

:

30.94 12.22 1 .00 95% ELLIPSE: 4.28 1.18 WITH GAM HA • 11 DEGREES

6
GURLEY

UNITS

AIR RESISTANCE , GURLEY

SAMPLE H49 = 30-9 GURLEY UNITS SAMPLE J45 = 12.2 GURLEY UNITS

7
REPORT N6. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS TAO-2 TABLE 1 AIR RESISTANCE, SHBFFIBLD UNITS (CC/KIN) FOR 0.4*2 SQ. IN (3/* IN. DIA) ORIFICE SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 10 LAB HA9 109 GRAMS PBR SQUARE METER J45 86 GRAMS PER SQUARE MBTER

C0DB MEAN DEV N.DEV SDR R. SDR MEAN DBV N.DEV SDR R.SDR VAR P LAB

LI 14 110.9 6.4 1.28 5.1 1.13 234.4 12.3 1.18 12.3 1.03 40S 0 LI 14

LI 21 104.2 -.3 -.06 3.4 .76 222.5 .4 .04 18.6 1.55 40S 0 LI 21 L122S 97.1 -7.4 -1.48 2.8 .63 220.3 -1.8 -.17 13.0 1.09 4 OS 0 L122S

LI 24S 99.6 -4.9 -.98 4.5 .99 209.4 -12.7 -1.22 7.7 .65 40S 0 LI 2 4 S

LI 27 276.

S

172.0 34.40 11.3 2.52 165.1 -57.0 -5.49 9.1 .76 4 OS * LI 27

Li 3 2 101 .0 -3.5 -.70 3. 8 .85 217.2 -4.9 -.47 12.3 1.03 40S 0 LI 32

LI 48 104.3 -.2 -.04 4.2 .93 216.4 -5.7 -.55 11.5 .96 40S 0 LI 48

LI 5 0 104.5 -.0 -.00 2.8 .63 239.5 17.4 1 . 68 10.1 .85 40S 0 LI 50

LI 57 103.1 -1 .4 -.28 4.7 1.05 217.9 -4.2 -.41 12.4 1 . 04 40S 0 LI 57

LI 5 8 119.

5

15.0 3.00 5.5 1.23 231.0 8.9 . 86 15.2 1.27 40S • LI 58

Li 7 3 B 103.0 -1.5 -.30 4.2 .94 219.5 -2.6 -.25 13.8 1.16 40S 0 L173B

L190C 107.1 2.6 .52 5.3 1.18 226.2 4.1 .39 16.9 1.42 40S 0 L190C

L21 3 107.5 3.0 .60 4.9 1.10 223.0 .9 . 09 15.4 1.29 40S 0 L21 3 L223 99.8 -4.7 -.94 4.0 .89 213.6 -8. 5 -.82 15.2 1.27 40S 0 L2 2 3 L228 112.9 8.4 1.68 3.9 . 86 239.4 17.3 1.67 8.3 .69 40S 0 L228

L2 3 0S 100.3 -4.2 -.64 3. 5 .77 200.3 -21.8 -2.10 9.1 .76 40S 0 L230S

L23 3 104.2 -.3 -.06 4.6 1.03 235.9 13.8 1.33 9.1 .76 4 OS 0 L233

L2 4

1

109.5 5.0 1.00 5.0 1.11 241.0 1 8.9 1.82 9.7 .81 40S 0 L241 L249 100.5 -4.0 -.80 3.7 . 84 217.5 -4.6 -.44 14.2 1.19 40S 0 L249

L255 113.0 8.5 1.70 5.0 1.12 233.5 11.4 1.10 7.1 .59 4 0 S 0 L255

L2 57 A. 103.4 -1 . 1 -.22 3.9 .88 219.4 -2.7 -.26 15.3 1.28 AOS 0 L257A

L257B 104.4 -.1 -.02 10.4 2.31 212.5 -9.6 -.93 9.4 .78 AOS 0 L2S7B

L257C 108.9 4.4 . 88 3.0 .68 217.9 -4.2 -.41 16.7 1 .40 AOS 0 L257C

L2 6 0 106.3 1.8 .36 3.3 .74 231.7 9.6 .92 19.3 1 .61 AOS 0 L260 L262S 107.2 2.7 .54 4.9 1.09 228.1 6.0 .58 9.5 .80 AOS 0 L262S

L288 110.2 5.7 1.14 6.1 1.37 221.5 -.6 -.06 11.3 .95 AOS 0 L288

L301 108.3 3.8 .76 2.7 . 60 NO DATA REPORTED FOR SAMPLE J45 AOS W L301

L31 2 103.1 -1 .4 -.28 3.2 .72 171.2 -50.9 -4.91 3.2 .26 AOS * L31 2 L3i 8 97.2 -7.3 -1.46 4.3 .95 234.4 12.3 1.18 21.8 1 .82 AOS • L31 8 L349 103.7 -.8 -.16 3.9 .87 202.8 -19.3 -1.86 10.1 .84 AOS 0 L3 A9

L352 104.5 -.0 -.00 5.0 1.11 226.5 4.4 .42 13.1 1 .10 AOS 0 L352

L354 103.9 -.6 -.12 5.2 1.15 215.4 -6.7 -.65 9.2 .77 AOS 0 L354

L3 6 0 100.3 -4.2 -.84 4. 1 .92 215.1 -7.0 -.68 8.8 .74 40S 0 L360

L370 101.8 -2.7 -.54 2.3 .50 204.9 -17.2 -1.66 9. 1 .76 AOS 0 L370

L39 0 109.3 4.8 .96 5.4 1 .20 225.7 3.6 .35 7.3 .61 AOS 0 L390

L552 279.5 175.0 35.01 11.7 2.60 527.0 304.9 29.38 42.9 3.58 AOS 0 L562 L575 103.2 -1.3 -.26 6.3 1.40 230.1 8.0 .77 15. 0 1.25 4 OS 0 L575

L587 99.5 -5.0 -1 .00 3.7 .82 225.0 2.9 .28 10.8 .90 AOS 0 L587

L597 99.8 -4.7 -.94 6.0 1.34 21 5.0 -7.1 -.69 9.4 .79 AOS 0 L597

L60 0 96.8 -7.7 -1.54 3.6 .79 211.5 -10.6 -1.02 15.7 1.31 AOS 0 L600

GR« MEAN • 104.5 SHEFF « UNITS GRAND MEAN • 222.1 SHEPF. UNITS TBST DETERMINATIONS - 10

SD MEANS - 5.0 SHEFF . UNITS SD 0P MBANS * 10.4 SHBPF. UNITS 36 LASS IN GRAND MEANS

AVEBAGE SDB - 4.5 SHBFF • UNITS AVBRAGB SDR • 12.0 SHSPF . UNITS

LI 82

B

371 .0 266.5 53.31 15.4 3. 44 971 .5 749.4 72*22 90. 1 7.53 40 B * LI 62 B L243B 404. 1 299.6 59.93 13.7 3. 06 1017.0 794. 9 76.60 34.7 2.90 40B L2A3B

L484 388.0 283. 5 56.71 13.2 2.94 930.0 707.9 60.22 48. 3 4.04 40B LA 04 TOTAL NUMBBR OF LABORATORIES REPORTING * 43

Best Values: H49 104 + 7 Sheffield units J45 221 + 17 Sheffield units

The following laboratories were omitted from the grand means because of extreme test results: 127.

312, 562.

8
RBPORT NO. 520 TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T40-2 TABLE 2 AIR RESISTANCE, SHEFFIELD UNITS (CC/MIN) FOR 0.442 SO. IN (3/4 IN. DI A ) ORIFICE

SHEFFIELD TBSTBR IS STANDARD FOR THIS ANALYSIS

MARCH 1978

LAB MEANS COORDINATES AVG CODE P H49 J4S MAJOR MINOR R. SDR VAR PR0PE RTY— -— TEST INSTRUMENT-——CONDI TIONS

L600 a 96.8 211.5 -12.4 4.4 1.05 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

LI 22

S

a 97.1 220.3 -3.8 6.6 .86 AOS AIR RESISTANCE, SHBFFI ELD ( 3/4 INCH DIAMETBR 0BIFICE

)

L31 8 • 97.2 234.4 9.7 10.5 1.39 AOS AIR RESISTANCE, SHEFFIELD (3/4 INCH DIAMBTBR ORIFICE

)

L587 a 99.5 225. 0 1.3 5.6 .86 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER 0BIFICE

>

L12 4S a 99.6 209.4 -13.6 1.1 .82 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTBR 0RIPICE

)

L597 a 99.8 215.0 -8.2 2.5 1.06 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER 0BIFICE

)

L223 a 99. 8 213. 6 -9.5 2.1 1 . 08 AOS AIR RESI STANCE, SHEFFIELD ( 3/4 INCH DIAMBTBR 0BIFICE

)

L3S0 a 100. 3 215.1 -7.9 2.0 .83 AOS AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER 0RIFICE

)

L230S a 100.3 200.3 -22.1 -2.2 .77 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L249 a 100.5 217. 5 -5.6 2.5 1.01 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER 0RIFICE

1

LI 32 a 101.0 217.2 -5.7 2.0 .94 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTBR ORIFICE)

L370 a 101.8 204.9 -17.3 -2.3 .63 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTBR ORIFICE

)

L173B a 103.0 219.5 -2.9 .7 1.05 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTBR ORIFICE > L312 * 103.1 171.2 -49.2 -13.1 .49 AOS AIR RESISTANCE, SHEPFIBLD ( 3/4 INCH DIAMETER ORIFICE ) LI 57 a 103.1 217. 9 -4.4 .2 1.05 AOS AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMBTER ORIFICE

)

L57 5 a 103.2 230.1 7.3 3.5 1.33 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L2 57A a 103.4 219.4 -2.9 .3 1.08 AOS AIR RESISTANCE. SHEFFIELD (3/4 INCH DIAMETER ORIFICE

)

L349 a 103.7 202.8 -18.7 -4.7 .86 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETBR ORIFICE

)

L354 a 103.9 21 5.4 -6.6 -1.3 .96 AOS AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMBTBR ORIFICE

)

LI 21 a 104. 2 222. 5 .3 .4 1.16 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF

)

L2 3 3 a 104.2 235.9 13.1 4.2 .90 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

LI 48 a 10 4. 3 216. 4 -5.5 -1.4 .95 AOS AIR RESI STANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L257B a 104.4 212.5 -9.2 -8.6 1 .55 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTER ORIFICE

)

LI 50 a 104.5 239. 5 16.7 5.0 .74 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTBR ORIFICE

)

L352 a 104.5 226. 5 4.2 1.3 1.10 AOS AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L2 60 a 106.3 231 .

7

9.7 1.0 1.17 AOS AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMBTBR ORIFICE

)

L190C a 107.1 226.2 4.7 *1.3 1.30 AOS AIR RB SI STANCE, SHEFFIELD ( 3/4 INCH DIAMBTER ORIFICE

)

L262S a 107.2 228.1 6.5 -.9 .94 AOS AIR RESISTANCE. SHEFFIELD (3/4 INCH DIAMETBR ORIFICE > L21 3 a 107.5 223.0 1.7 -a. 6 1.20 AOS AIR RESISTANCE, SHBPFI ELD ( 3/4 INCH DIAMBTBR ORIFICE

)

L301 M 108.3 .60 AOS AIR RESISTANCE, SHBFPI ELD ( 3/4 INCH DIAMBTBR ORIFICE

)

L257C a 108.9 217.9 -2.8 -5.4 1 . 04 AOS AIR RESISTANCE, SHBFFIBLD ( 3/4 INCH DIAMETBR ORIFICE ) L3 9 0 a 109.3 225.7 4.8 -3.6 . 90 AOS AIR RBSISTANCB. SHEPFIBLD ( 3/4 INCH DIAMETBR ORIFICE > L241 a 109.5 241.0 19.5 .6 .96 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETBR ORIFICE

)

L2 8 8 a 110.2 221 .

5

1 .0 -5.6 1.16 AOS AIR RESISTANCE, SHBFFIBLD ( 3/4 INCH DIAMETBR ORIFICE ) LI 14 a 110.9 234.4 13.6 *2.6 1.08 AOS AIR RESISTANCE, SHBPFI ELD ( 3/4 INCH DIAMBTER ORIPICE ) L228 a 112.9 239.4 19.0 -3.1 .78 AOS AIR RESISTANCE, SHBFFIBLD (3/4 INCH DIAMBTBR ORIFICE

)

L2 5 5 a 113.0 233. 5 13.3 -4.9 .86 AOS AIR RESISTANCE, SHBFFIBLD ( 3/4 INCH DIAMETER ORIFICE

)

LI 58 • 119.5 231 .

0

12.8 -11.8 1.25 AOS AIR RBSISTANCB. SHBFFI ELD (3/4 INCH DIAMETER ORIFICE

)

LI 27 * 276.5 165.1 -5.8 -181.1 1.64 AOS AIR RESISTANCE, SHBFFIBLD (3/4 INCH DIAMBTER ORIFICE > L552 * 279.5 527. 0 342.0 -81.2 3.09 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETBR ORIFICE

)

LI 82 B 371.0 971.5 794.2 -42.6 5.49 AO B AIR RESISTANCE. BENDTSEN. WG ISO L484 * 388.0 530. 0 759.3 -70.7 3.49 AOB AIR RESISTANCE, BBNDTSEN. WG 150

L2 4 3B 404.1 1017.0 847.2 -61.4 2.98 AO B AIR RESISTANCE. BBNDTSEN, WG 150 GMEANS

:

104.5 222.1 1.00 95% ELLIPSB: 27.9 10.7 WITH GAMMA - 73 DBGREES

9
SHEFF.

UNITS

RIR RESISTANCE, SHEFFIELD

SAMPLE H49 = 105. SHEFF. UNITS SAMPLE J45 = 222. SHEFF. UNITS

10
REPORT NO. 52G TAPPI COLLABORATIVE REPBRENCE PROGRAM ANALYSIS T41-1 TABLE 1 AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

DIRBCT READING, SEC/l 0 CC, MERCURY DBNSITY

MARCH 1978

SAMPLE BACKING

LAB B64 98 GRAMS PER SQUARE METER

C3DB M6AN DEV N.DEV SDR R. SDR

LI 22 529. 19. .54 92. .94

LI 2 8 531. 21 . .60 81. . 83

LI 3 4 513. 3. .09 35. . 35

LI 66M 587. 77. 2.20 134. 1.36

LI 9 5 486. -24. -.69 102. 1.04

L202 493. -17. -.49 73. .74

L2 2 4 487. -23. -.65 74. .76

L2 30 535. 25. .72 58. .59 L259 547. 37. 1 .05 142. 1.44

L3 5 8 490. -20. -.58 193. 1.96

L557 454. -55. -1.59 174. 1.77

L5S9 455. -44 . “1.37 119. 1.21

L5 6 0 499. -11 . -.31 70. . 71 L561 542. 32. .93 63. .64 L576 490. -19. -.55 65. .66

GR. MEAN - 510. SEC/l 0 CC GRAND MEAN

SD MEANS 35. SEC/10 CC SD OF MEANS AVERAGE SDR - 98. SEC/l 0 CC TOTAL NUMBER OF LABORATORIES REPORTING 15

Best Values: E64 500 + 50 second per 10 cc

,

E68 850 + 130 mercury density

(direct reading)

SAMPLE RELEASE TEST D. - 10 E68 95 GRAMS PER SQUARE METER

MEAN DBV N. DEV SDR R. SDR VAR F LAB

947. 142. 1.66 1 05. 1 .05 4 1 G 0 LI 22 809. 4. .05 62. .62 4 1

G

0 LI 28

884. 79. .93 51 . .51 41 G 0 LI 34 766. -39. -.46 100. 1.00 4 1 G 0 LI 66M

805. -0. TM.oo 76. .76 4 1 G 0 LI 95

886. 81 . .95 82. .82 41 G 0 L202

915. 110. 1.28 81 . . 81 4 1 G 0 L224

835. 30. .35 119. 1.19 4 1 G 0 L230

798. -7. -.08 112. 1.12 41 G 0 L259

603. -202. -2.36 74. .74 4 1 G 0 L358

782. -23. -.27 1 32. 1 .32 4 1 G 0 L557

708. -97. -1.14 133. 1.33 41 G 0 L5 59

769. -36. -.42 1 35. 1 .35 4 1 G 0 L560

754. -51 . -.60 117. 1.17 41 G 0 L551

815. 10. • 12 119. 1.19 4 1 G 0 L576

805. SEC/10 CC TEST DETERMINATIONS - 1C 86. SEC/10 CC 15 LABS IN GRAND MEANS

AVBRAGE SDR - 100. SEC/l 0 CC

The values reported here are the time in seconds

required for the displacement of 10 ml of air through

an area of 1.0 in 2 of the specimen. The values are

not converted to 100 ml of air nor to oil density.

REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1973 ANALYSIS T41-1 TABLE 2 AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

DIRECT READING, SEC/10 CC, MERCURY DENSITY

LAB MEANS COORDINATES AVG

C0D2 F B64 E68 MAJOR MINOR R. SDR VAR PROPERTY- --TEST INSTRUMENT-—CONDITIONS

L557 0 4 54. 782. -26. 54. 1 .55 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MBRCURY FLOTATION

L55 9 0 465. 708. -ICO. 39. 1.27 41 G AIR RESISTANCE, HIGH RANGE. GURLBY MERCURY FLOTATION

LI 9 5 0 486. 805. -2. 24. .90 41 G AIR RESISTANCE, HIGH RANGE. GURLEY MERCURY FLOTATION

L22 4 0 487. 915. 108. 29. .78 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L3 5 8 0 490. 603. -203. 9. 1.35 41 G AIR RESISTANCE, HIGH RANGE. GURLEY MERCURY FLOTATION

L57 6 0 490. 815. 9. 20. .93 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L202 0 493. 886. 80. 22. .78 41 G AIR RESISTANCE, HIGH RANGB, GURLEY MERCURY FLOTATION

L560 0 499. 769. -37. 9. 1.03 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MBRCURY FLOTATION

LI 34 0 513. 884. 79. 1 . .43 41 G AIR RESISTANCE, HIGH RANGE. GURLEY MBRCURY FLOTATION

Li 22 0 529. 947. 143. -11. .99 41 G AIR RESISTANCE, HIGH RANGE. GURLEY MBRCURY FLOTATION

LI 2 8 0 531 . 809. 5. -21. .72 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L230 0 535. 835. 31. -24. . 89 41 G AIR RESISTANCE, HIGH RANGB, GURLEY MBRCURY FLOTATION

L561 0 542. 754. -49. -35. .91 41 G AIR RESISTANCE. HIGH RANGE, GURLEY MBRCURY FLOTATION

L259 0 547. 798. -5. -37. 1 .28 41 G AIR RESISTANCE, HIGH RANGE. GURLEY MBRCURY FLOTATION

L166M 0 587. 766. -35. -79. 1.18 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

GMEANS: 510. 805. 1.00 95% :ELLIPSE: 245. 99. WITH GAMMA - 86 DBGRBES

11
RIR RESISTANCE, GURLEY HG FLOTATION

SAMPLE E64 = 510. SEC/10 CC SAMPLE E68 = 805. SEC/10 CC

o

o

o

o

o'

o

LO

CDO

O'

CD

CD o

LJ ld

oo O1

1

o \ O'

CJ 00

OQ +.X.# NOT IN GRAND MEANS

CD

LU ANALYSIS T41-1

LU

_J

Q_

CC

CO

O

O h

©

O

O

CO o

LO- r-o

o

r-o

LOCDO

OCDO

LO - LO

O

O

O

O

©

©

o

SAMPLE E64

200 250 300 350 400 ~450 500 550 600 650 700 750 800 850

SEC/10 CC

12
REPORT NO. 52G TAPPX COLLABORATIVE REFBRENCB PROGRAM MARCH 1978 ANALYSIS T44-1 TABLE 1 SMOOTHNESS, PARKER PRINTSORF

SAMPLE WRITING SAMPLB HEAT SBT 6PFSET BOOK TEST D •

1 10 LAB E36 72 GRAMSi PER SQUARE METBR B91 76 GRAMS; PBR SQUARE MB TER CODE MEAN DEV N. DEV SDR R. SDR MBAN DBV N. DEV SDR R. SDR VAR P LAB

Li 2 2 4.74 .72 5.18 .11 .77 5.34 1.07 3.50 .19 1.00 44 P ft LI 22

LI 3 6 4.07 .05 .33 .15 1.03 4.39 .12 .41 .14 .77 44P 0 LI 36

LI 8 2 3.88 -.14 -1.03 .13 .93 3.93 -.33 •1.08 .25 1 .35 44 P 0 LI 82

Li 83 3.84 -.18 -1.32 .08 . 58 3.80 -.47 -1.52 .14 .75 44P 0 LI 83

L2 2 3 4.1i .09 .63 .15 1.05 4.27 .00 .01 .26 1.36 44P 0 L223

L288 4.20 .18 1.29 .10 . 73 4.70 .44 1.43 .14 .73 44P 0 L2 88

L31 7 4 . i 3 .11 .76 .18 1.22 4.43 .16 .54 .25 1.33 44P 0 L317

L588 3.93 -.09 -.67 .21 1.46 4.33 .06 .21 .13 .71 44 P 0 L588

GR* MEAN • 4.02 MICRONS GRAND MEAN • 4.27 MICRONS TEST DETERMINATIONS - 11 SD MEANS - .14 MICRONS SD OF MBANS - .3i MICRONS 7 LABS IN GRAND MBANS

AVERAGE SDR • .14 MICRONS AVERAGE SDR - .19 MICRONS TOTAL NUMBER OF LABORATORIES REPORTING * 8

Best Values: E36 4.0 microns

B91 4.3 microns

The following laboratories were omitted from the grand means because of extreme test results: 122.

REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T44-1 TABLB 2 SMOOTHNESS, PARKER PRINTSURF

LAB MEANS COORDINATES AVG

CODE F E36 B91 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST INSTRUMENT- --CONDITIONS

LI 83 0 3.84 3.80 -.50 -.01 .67 44P SMOOTHNESS, PARKER PRINTSURF

LI 82 0 3.86 3.93 -.36 .00 1.14 44P SMOOTHNESS. PARKER PRINTSURF

L5 88 0 3.93 4.33 .02 .11 1.09 44P SMOOTHNESS, PARKER PRINTSURF

LI 36 0 4.07 4.39 .13 .01 .90 44 P SMOOTHNESS, PARKER PRINTSURF

L223 0 4.11 4.27 .04 -.08 1.20 44P SMOOTHNESS, PARKER PRINTSURF

L31 7 0 4.13 4.43 .19 -.03 1.27 44 P SMOOTHNESS, PARKER PRINTSURF

L288 0 4.20 4.70 .47 .00 .73 44 P SMOOTHNESS. PARKBR PRINTSURF

LI 22 ft 4.74 5.34 1.27 -.25 .89 44P SMO0THNBSS, PARKER PRINTSURF GMEANS

:

4.02 4.27 1.00 95* ELLIPSE: 1.24 .22 WITH GAMMA - 67 DBGREES

13
REPORT NO. 52G TAPPI COLLABORATIVE REFBRENCB PROGRAM MARCH 1978 ANALYSIS T45-1 TABLE 1 SMOOTHNESS. SHEFFIELD UNITS SHEFFIELD TBSTBR IS STANDARD FOR THIS ANALYSIS

LAB SAMPLE

E36 WRITING

72 GRAMS PER SQUARE METER

SAMPLE

B91 HEAT SET OFFSET BOOK

76 GRAMS PER SQUARB MB TER TEST D. - 15 C0DB MEAN DEV N.DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI 0 0 105.0 .1 .01 5.9 1.01 127.7 -.3 -.05 7.9 .81 45S 0 LI 00

LI 07 118.7 13.7 2.70 7.1 1.21 142.0 14.0 2.22 12.4 1.27 45S • LI 07

LI 0 8 10 5.5 .6 .12 3.9 .66 125.9 -2.1 -.33 9.5 .98 45S 0 LI 08

LI 1 4 107.7 2.7 .54 3.8 . 65 130.1 2.2 .34 12.2 1.25 45S 0 LI 14

LI 15 102.3 -2.6 -.51 6.5 1.11 131.0 3.0 .48 8.7 .90 45S 0 LI 15

LI 21 106.5 1.5 .30 5.8 .99 124.9 -3.0 -.48 13.1 1.35 45S 0 LI 21

LI 22 107.2 2.3 .44 9.2 1.56 129.3 1.4 .22 8.6 .88 45S 0 LI 22

LI 2 3 99.8 -5.1 -1 .01 4.3 .73 126.9 -1.1 -.17 8.7 .90 45S 0 LI 23

LI 24 102.6 -2.3 -.46 6. 8 1.15 121.9 -6.0 -.96 8.0 .83 45S 0 LI 24

LI 25 101.3 -3.6 -.71 8.5 1.46 121.0 -7.0 -1.10 9.5 .98 45S 0 LI 25

LI 26 99.5 -5.4 -1 .06 5.6 .96 125.7 -2.3 -.36 1 0.6 1 .09 45S 0 LI 26

LI 2 8 108.8 3.9 .76 5.9 1.00 126.7 -1.3 -.21 8.4 .86 45S 0 LI 28

LI 3 2 99.5 -5.5 -1.08 6.2 1.06 131.7 3.7 .59 11.9 1.23 45S 0 LI 32

LI 3 4 103.3 -1.6 -.32 5.4 .93 128.5 .5 .08 6.0 .62 45S 0 LI 34

LI 39S 108.9 4.0 .78 4.9 .83 1 29.7 1.7 .27 8. 8 .91 45S 0 L139S

LI 4 8 111.0 6. 1 1.19 6.0 1.02 130.9 3.0 .47 1 0.9 1.12 45S 0 LI 48

LI 50 100.0 -4.9 -.97 8.9 1.51 121.0 -7.0 -1.10 11.7 1 .20 45S 0 LI 50

LI 52 106.5 1.5 .30 3.1 .53 135.2 7.2 1.14 7.5 .78 45S 0 LI 52

LI 53 118.9 13.9 2.74 7.0 1.19 141 .7 13.7 2.17 12.2 1.26 45S • LI 53

LI 57 107.3 2.3 .46 5.3 .90 135.6 7.6 1.21 8. 9 .92 45S 0 LI 57

LI 58 116.0 11.1 2.17 8.1 1.38 137.0 9.0 1.43 11.9 1.23 45S 0 LI 58

LI 59 102.1 -2.9 -.57 6.8 1.15 130.1 2.1 .33 11.2 1.16 45S 0 LI 59

LI 6 2 107.7 2.7 .54 4.6 .73 133.3 5. 4 .85 7.9 .82 45S 0 LI 62

LI 66 97.5 -7.4 -1.46 7.2 1.24 119.3 -8.6 -1.37 10.8 1.11 45S 0 LI 66

LI 6 7 104.3 -.6 -.12 3.2 .55 127.0 -1.0 -.15 5.9 .61 45S 0 LI 67

LI 73B 107.0 2.1 .40 5.6 .96 122.3 -5. 6 -.89 8.2 .85 45S 0 L173B

LI 76

S

103.8 -1.1 -.22 7.5 1.27 130.3 2.4 .37 7.3 .75 45S 0 LI 76S

LI 83S 104.7 -.2 -.04 2.7 .45 127.7 -.2 -.04 13.3 1.37 45S 0 L183S

L190C 103.3 -1 .6 -.32 8.8 1.50 129.2 1.2 .19 12.6 1 .30 45S 0 L190C

LI 90R 108.8 3.9 .76 9.0 1 . 54 129.9 1.9 .30 9.7 1 .00 45S 0 L190R

LI 9 5 100.2 -4.7 -.93 6. 8 1.16 121.5 -6.4 -1.02 9.5 .98 ASS 0 LI 95 L203 108.1 3.1 .61 7.7 1 .31 131.3 3.4 .53 13.8 1.42 45S 0 L203

L21 1 97.7 -7.3 -1.43 6.3 1.07 120.9 -7. 1 -1.12 12.6 1.29 45S 0 L21

1

L21 3 99.3 -5.6 -1.10 5. 8 .99 126.9 -1.1 -.17 9.5 .98 45S 0 L213

L2 21 93.0 -11.9 -2.35 6.5 1.11 122.4 -5.6 -.88 10.5 1.08 45S * L221 L223 93.9 -11 .

1

-2.18 7.7 1.32 118.9 -9.1 ' -1.44 8.1 .83 45S 0 L223

L224 114.5 9.6 1.89 2.9 . 49 132.1 4.2 .66 9.9 1.02 ASS 0 L224 L226B 97.4 -7.5 -1.48 5.2 .90 117.1 -10.8 -1.72 8.7 .89 45S 0 L226B

L228 107.8 2.9 .56 8.2 1.39 125.4 -2.6 -.41 10.7 1.10 ASS 0 L228

L230S 103.9 -1.1 -.21 4.6 .79 129.0 1.0 .16 12.7 1 .30 ASS 0 L230S

L231 11 0.4 5.5 1.07 8.5 1.46 140.3 12.3 1.95 9.7 1.00 ASS 0 L2 31 L232S 106.0 1.1 .21 5.1 .87 131.7 3.7 .59 11.9 1.23 A5S 0 L232S

L233 100.2 -4.7 -.93 5.3 .90 137.7 9.7 1.54 11.4 1.17 ASS • L233

L2 4

1

109.3 4.4 .86 5.6 .96 128.0 .0 .00 5. 3 .54 A5S 0 L241 L249 101.3 -3.7 -.72 3.8 .65 125.8 -2.2 -.34 14. 1 1.45 A5S 0 L249

L254 106.5 1 .6 .31 6.3 1.07 133.9 6.0 .94 12.2 1.26 ASS 0 L254

L2 5 5 104.7 -.3 -.05 2.7 .46 111.4 -16.6 -2.62 4.5 .47 ASS X L255 L257A 100.3 -4.7 -.92 7.0 1.20 121.4 -6.6 -1.04 8.4 .87 ASS 0 L257A

L257B 109.6 4.7 .92 8.5 1.49 128.9 .9 .14 1 0.8 1.12 A5S 0 L257B

L2 57C 112.9 7.9 1.56 5.1 .87 130.3 2.3 .36 13.5 1.39 ASS 0 L257C

L259 113.8 8.9 1.74 6.7 1.14 137.3 9.4 ' 1.48 9.9 1.02 ASS 0 L259

L260 106.7 1.7 .34 3.6 .62 130.3 2.4 .37 5.3 .54 A5S 0 L260

L2 61 99.7 -5.2 -1 .02 5.4 .92 124.9 -3.0 -.48 9.5 .98 ASS 0 L261 L262 109.4 4.5 .88 4.6 .78 143.5 15.5 2.45 6.7 .69 ASS • L262

L275 103.7 -1.3 -.25 9.5 1.63 131.3 3.4 .53 9.7 1 .00 ASS 0 L275

L277 115.1 10.1 1.99 4.9 .83 141.5 13.6 2.15 10.7 1.10 A5S 0 L277

L278 102.7 -2.2 -.43 7.6 1.29 130.8 2.8 .45 12.8 1.31 A5S 0 L278

L281 103.3 -1.6 -.32 4.9 . 83 125.7 -2.2 -.35 10.8 1.11 ASS 0 L281

L2 8 8 99.5 -5.5 -1.08 6.9 1.18 127.2 -. 8 -.12 8.7 .89 A 5S 0 L2 88

L2 9 0 95.1 -9.9 -1 .94 6.9 1.17 114.0 -14.0 -2.21 7.6 .79 A5S 0 L290 L291S 105.7 .7 .14 4.3 .73 130.6 2.6 .42 8.7 .90 ASS 0 L291S

L297 105.7 .7 .14 6.2 1.06 130.7 2.7 .43 10.2 1 .05 ASS 0 L297

L301 106.7 1.7 .34 3.0 .51 125.4 -2.6 -.41 7.4 .76 ASS 0 L301 L308 106.9 2.0 .39 5.8 .99 133.3 5.3 .84 7.4 .76 ASS 0 L308

L31 2 106.7 1.8 .35 5.2 .89 120.5 -7.5 -1.19 7.0 .72 ASS 0 L312 14
i

REPORT

LAB

NO. 52G

SAMPLE

E36

TAPPI COLLABORATIVE REPERENCE PROGRAM ANALYSIS T45-1 TABLB 1 SMOOTHNESS. SHEFFIELD UNITS SHEFFIELD TESTBR IS STANDARD FOR THIS ANALYSIS

WRITING SAMPLE HEAT SBT OFFSBT BOOK

72 GRAMS PER SQUARE MBTBR B91 76 GRAMS PER SQUARE METER

MARCH 1978

TEST D. - 15 CODS MEAN DEV N.DBV SDR R. SDR MEAN DBV N.DBV SDR R. SDR VAR F LAB

L31 7 100.7 -4.2 -.83 6.2 1.06 124.1 -3.8 -.61 11.7 1 .20 45S 0 L317

L31 8 100.5 -4.5 -.88 5.5 .94 123.1 -4.8 -.77 9.9 1 .02 45S 0 L31 8 L3 21 97.7 -7.3 -1.43 5.6 .96 112.0 -16. 0 -2.53 7.7 .80 45S » L321 L323 109.3 4.4 .86 5. 3 .90 133.3 5.4 . 85 14.2 1 .46 45S 0 L323

L326 10 5.5 .6 .12 6.3 1.08 124.0 -4.0 -.63 6.6 .68 4 5 S 0 L326

L328 106.6 1.7 .33 4.2 .72 128.5 .6 .09 7.9 .82 45S 0 L328

L3 4

1

104.8 -.1 -.03 4.1 .71 122.1 -5. 8 -.92 9.1 .93 45S 0 L341 L342 109.5 4.5 .89 3.8 .65 134.9 7.0 1.10 9. 6 .99 45S 0 L342

L349 99.4 -5.5 -1.09 6.6 1.12 120.3 -7.6 -1.21 8. 7 .90 45S 0 L349

L352 108.8 3.9 .76 6.8 1.17 127.1 -.8 -.13 10.6 1 .09 45S 0 L352

L360 102.0 -2.9 -.58 4.8 .81 121.5 -6. 5 -1.03 8.4 .87 45S 0 L360

L3 6 5 106.2 1.3 . 25 2.9 .50 126.4 -1.6 -. 25 12.2 1.26 45S 0 L366

L3 70 101.0 -3.9 -.78 4.3 .73 120.7 -7.2 -1.15 5.3 .54 4 5 S 0 L370

L372 107.4 2.5 .48 7.9 1.35 127.5 -.5 -.08 11.6 1.20 45S 0 L372

L376 110.4 5.5 1.07 4.4 .75 131.1 3.1 .49 10.3 1 .06 45S 0 L376

L3 7 8 103.1 -1.9 -.37 4.1 .70 127.4 -.6 -.09 15.0 1 . 55 45S 0 L378

L382 103.6 -1 .

3

-.26 6.7 1.14 119.2 -8.8 -1.39 10.5 1 .08 45S 0 L362

L3S0 100.5 -4.4 -.87 8.6 1.47 130.0 2.0 .32 11.7 1.20 4 5S 0 L390 L396M 100.8 -4.1 -.81 6.3 1 . 07 120.5 -7.4 -1.18 9.5 .97 45S 0 L396M

L554 102.9 -2.0 -.40 5.7 .97 135.9 7.9 1.25 6. 7 .69 45S 6 L554

L561 111.7 6.7 1 .32 7.9 1 . 36 126.3 -1.6 -.26 8. 8 .90 45S 0 L561

L571 108.7 3.7 .73 6.4 1.09 137.0 9.0 1.43 8.0 .82 45S 0 L571

L5 75 105.4 .5 . 09 4.7 .81 128.3 . 4 . 06 13.0 1.34 45S 0 L575

L587 101 .3 -3.6 -.71 5. 8 .99 125.7 -2.3 -.36 8. 0 .82 4 5S 0 L587

L597 103.6 -1.3 -.26 5.2 . 89 125.5 -2.4 -.39 10.6 1.09 45S 0 L597

L600 108.6 3.7 .72 5.0 .85 134.3 6.3 1.00 6.9 .71 45S 0 L600

L602 101 .4 -3.5 -.70 3.3 . 56 114.4 -13.6 -2.15 4.4 .45 45S 0 L602

L607 125.0 20.1 3.94 4.1 .70 143.7 15.8 2.50 6.2 .64 45S X L607

GR« MEAN - 104.9 SHEFF. UNITS GRAND MBAN • 128.0 SHBPF. UNITS TEST DETERMINATIONS • 15

SD MEANS - 5.1 SHEFF • UNITS AVERAGE SDR • SD 0P MBANS - 6.3

5.9 SHEFP . UNITS

SHBFP. UNITS AVBRAGE SDR - 9.791 LABS IN GRAND

SHBPF. UNITS MEANS

L174 215.5 110.5 21.73 5.5 TOTAL NUMBER OF LABORATORIES REPORTING - .94 94 226.7 98.8 15.64 6.0 .61 4 5 R LI 74

Be9t Values: E36 105 + 8 Sheffield units

B91 128 + 10 Sheffield units

15
REP0RT N0. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T45-1 TABLE 2 SMOOTHNESS, SHEFFIELD UNITS

LAB MEANS C00SD

]

CODE F E36 B91 MAJOR

L221 * 93,0 122.4 -11 ,6 L223 0 93.9 118.9 -13.9

L290 0 95.1 114.0 -17.1 L226B 0 97.4 117.1 -13.2

LI 66 0 97.5 119.3 -11.3

L321 * 97.7 112.0 -17.2

L211 0 97.7 120.9 -10.0

L21 3 0 99.3 126.9 -4.2

L3 49 0 99.4 120.3 -9.4

L2 8 8 0 99.5 127.2 -3.9

LI 32 0 99.5 131.7 -.3

LI 2 6 0 99.5 125.7 -5.1

L2 61 0 99.7 124.9 -5.5

LI 2 3 0 99. 8 126.9 -3.9

LI 50 0 100.0 121.0 -8.5

L2 3 3

*• 100. 2 137. 7 5.0

LI 95 0 100.2 121.5 -8.0 L257A 0 100.3 121.

4

-8.1

L31 8 0 100.5 123.1 -6.5

L390 0 100.5 130.0 -1.0

L31 7 0 100.7 124.1 -5.6 L396M 0 100.6 120.5 -8.4

L3 70 0 101.0 120.7 -8.2

L2 49 0 101.3 12 5.8 -3.9

L5 87 0 101.3 125. 7 -4.0

LI 2 5 0 101.3 121.0 -7.8

L6 0 2 0 101.4 114. 4 -13.0

L360 0 102. 0 121.5 -7.0

LI 59 0 102. 1 130. 1 -.0

LI 1 5 0 102.3 131.

0

.9

LI 2 4 0 102. 6 121.9 -6.3

L2 78 0 102.7 130.8 1.0 L554 0 102.9 1 35. 9 5.2

L3 7 8 0 103. 1 127. 4 -1.6

LI 90C 0 103.3 129.2 . 0

LI 3 4 0 103.3 128.5 -.6

L281 0 103.3 125.7 -2.8

L382 0 103.6 119.2 -7.9

L5 9 7 0 103. 6 125. 5 -2.7

L2 75 0 103.7 131.3 2.0

LI 76S 0 103. 8 130.3 1 .2 L230S 0 103.9 129.0 .2

LI 67 0 104. 3 127. 0 -1 .1 L255 X 104.7 111.4 -13.5

LI 83S 0 104.7 127.7

L341 0 104.8 122.1 -4 .

8

LI 00 0 105.0 127.7 -.2

L575 0 105.4 128.3 • 6 L326 0 105.5 124.0 -2.9

LI 0 8 0 105.5 125.9 -1.3

L2 97 0 105.7 130.7 2.6

L291 S 0 105.7 130.6 2.5

L232S 0 106.0 131.7 3.6

L3 66 0 106. 2 126.4 -.5

LI 52 0 106. 5 135.2 6.7

LI 21 0 106.5 124.9 -1 .5

L2 5 4 0 106.5 133.9 5.7

L32 0 0 106. 6 128.5 1 • 4 L301 0 106.7 125.4 -1 .1 L26 0 0 106.7 130.3 2.9

L31 2 0 106.7 120.5 -5.0

L30 8 0 106.9 133.3 5.4

LI 73 B 0 107. 0 122. 3 -3.3

LI 2 2 0 107.2 129.3 2.4

LI 57 0 107.3 135. 6 7.5

SHEFFIELD TESTER IS STANDARD

AVG MINOR S. SDR VAR PROPERTY6.3 1.10 45S SM00THNESS.

3.5 1.07 45S SM00THNESS,

-.3 .98 45 S SM00THNBSS,

-.3 .89 45S SM00THNESS,

.9 1.17 45 S SM60THNESS, -3.6 .88 45 S SM00THNESS,

1.7 1.18 45S SM00THNESS,

3.9 .98 45S SMOOTHNESS,

-.1 1.01 45S SMOOTHNESS,

4.0 1.04 45 S SMOOTHNESS,

6.6 1.14 45 S SMOOTHNBSS,

3.0 1.02 45S SMOOTHNESS,

2.4 .95 45S SMOOTHNESS,

3.5 .81 45S SMOOTHNESS,

-.1 1.36 45 S SMOOTHNBSS,

9.6 1.03 45 S SMOOTHNESS,

.0 1.07 45 S SMOOTHNESS,

-.1 1.04 45S SMOOTHNESS,

.7 .98 45 S SMOOTHNESS.

4.8 1.33 45S SMOOTHNESS,

1.1 1.13 45S SMOOTHNESS,

-1.1 1.02 45S SMOOTHNBSS.

-1.1 .64 45S SMOOTHNESS.

1.7 1.05 45S SMOOTHNBSS,

1.5 .91 45S SMOOTHNESS,

-1.2 1.22 45S SMOOTHNESS. -5.2 .50 45 S SMOOTHNESS,

-1 .

5

. 84 45 S SMOOTHNESS,

3.6 1.15 45 S SMOOTHNESS.

3.9 1.00 45 S SMOOTHNBSS.

-1 .7 .99 45 S SMOOTHNBSS.

3.5 1.30 45S SMOOTHNESS.

6.3 .83 45S SMOOTHNBSS,

1.2 1.12 45 S SMOOTHNESS,

2.0 1.40 45S SMOOTHNESS,

1.6 .77 45 S SMOOTHNESS.

-.0 .97 45S SMOOTHNESS,

-4. 1 1.11 45S SMOOTHNESS.

-.4 .99 45S SMOOTHNESS.

3.0 1.31 45S SMOOTHNBSS,

2.3 1 .01 45S SMOOTHNESS.

1.5 1.05 45 S SMOOTHNESS.

-.1 .58 45S SMOOTHNESS.

-9.6 .47 45 S SMOOTHNESS,

.0 .91 45S SMOOTHNESS,

-3.3 .82 45 S SMOOTHNESS.

-.2 .91 45S SMOOTHNESS.

-.2 1 .07 45 S SMOOTHNESS. -2.8 . 88 45S SMOOTHNESS. -1.7 .82 4 5 S SMOOTHNESS,

1.0 1.05 45S SMOOTHNESS,

1.0 .81 45S SMOOTHNESS.

1.3 1.05 45 S SMOOTHNESS,

-1.9 .88 45 S SMOOTHNESS,

3.1 .65 45S SMOOTHNBSS,

-3.0 1.17 45 S SMOOTHNESS.

2.2 1.16 45 S SMOOTHNESS.

-1.0 .77 45 S SMOOTHNESS.

-2.9 .63 45S SMOOTHNBSS,

.0 .58 45 S SMOOTHNESS,

-5.9 .81 45 S SMOOTHNESS.

1 .

5

.87 45S SMOOTHNBSS,

-5.0 .90 45S SMOOTHNESS,

-1.0 1.22 45S SMOOTHNESS,

2.6 .91 45S SMOOTHNBSS,

FOR THIS ANALYSIS

-TEST INSTRUMENT- --CONDITIONS

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEPPIBLD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD SHBFFIBLD

SHBFFIBLD

SHBFFI ELD

SHEFFI BLD SHEFFIELD

SHEFFIELD

SHBFFI BLD SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEPFI ELD SHEFFIELD

SHEPFI BLD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEPFI BLD

SHEFFI BLD SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFI BLD SHBPF I ELD SHEFFIELD

SHBFFIBLD SHEFFIELD

SHEFFIELD

SHEFFIELD SHEPPIBLD

SHEFFIELD

SHEFFIELD

16
REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T45-I TABLE 2 SMOOTHNESS. SHEFFIELD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG CODB F E36 B91 MAJOR MINOR R. SDR VAR PROPERTY-* -TBST INSTRUMBNT--*-C6NDITiaNS

L372 a 107.4 127.5 1.0 -2.3 1.27 45S SMOOTHNESS, SHEFFIELD

LI 14 a 107.7 130.1 3.4 -.9 .95 45S SMOOTHNESS, SHEFFIELD

LI 62 a 107.7 133. 3 5.9 1.0 . 80 45S SMOOTHNBSS, SHBPFI ELD

L228 a 107. 8 125. 4 -.4 -3.8 1.25 45S SMOOTHNBSS, SHEFFIELD

L203 a 108. 1 131.

3

4.6 -.5 1.36 45S SMOOTHNESS, SHEFFIELD

L600 a 108.6 134.3 7.2 .8 .78 45S SMOOTHNESS, SHEFFIELD

L571 a 108.7 137.0 9.5 2.3 .96 45S SMOOTHNESS, SHEFFIELD

LI 2 8 a 108.8 126.7 1.2 -3.9 .93 45S SMOOTHNBSS. SHEFFIELD

LI 90R a 108. 8 129.9 3.8 -2.0 1.27 45S SMOOTHNBSS, SHEFFIELD

L35 2 a 108.8 127.1 1.6 -3.6 1.13 45 S SMOOTHNESS, SHEFFIELD

LI 39S a 1 08.9 129. 7 3.7 -2.2 .87 45 S SMOOTHNESS, SHEFFIELD

L323 a 109.3 133.3 6.9 -.4 1.18 45S SMOOTHNESS, SHEFPIBLD

L241 a 109.3 128.0 2.6 -3.5 .75 45S SMOOTHNESS, SHEFFIELD

L262 • 109.4 143.5 15.1 5.6 .73 45 S SMOOTHNESS. SHEFFIELD

L342 a 109.5 134.9 8.3 .5 .82 45S SMOOTHNESS, SHBPFI ELD L257B a 109. 6 128.9 3.5 -3.2 1.28 45S SMOOTHNESS. SHEFFIELD

L231 a 110.4 140.3 13.1 2.9 1.23 45S SMOOTHNESS, SHBPFI BLD L376 a 110.4 131.1 5.7 -2.6 .91 45 S SMOOTHNESS, SHEFFIELD

LI 4 8 a 111.0 130.9 6.0 -3.1 1.07 45S SMOOTHNESS, SHEFFIELD

L561 a 111.7 126.3 2.7 -6.4 1.13 45S SMOOTHNBSS, SHEFFIELD

L257C a 112.9 130.

3

6.5 -5.0 1.13 45S SMOOTHNESS, SHEFFIELD

L259 a 113.8 137.3 12.8 -1.6 1 .08 45 S SMOOTHNESS. SHEFFIELD

L22 4 a 114.5 132. 1 9.0 -5.3 .75 45S SMOOTHNBSS. SHEFFIELD

L27 7 a 115. 1 141 .5 16.9 -.1 .96 45S SMOOTHNBSS. SHBFFI BLD

LI 58 a 116.0 137.0 13.8 -3.6 1.30 45S SMOOTHNBSS, SHEFFIELD

LI 07 * 118.7 142.0 19.4 -2.8 1.24 ,45S SMOOTHNESS. SHEFFIELD

LI 53 » 118.9 141.7 19.3 -3.1 1.23 45S SMOOTHNESS, SHEFFIELD

L607 X 125.0 143.7 24.6 -6.8 .67 45S SMOOTHNESS, SHEFFIELD

LI 74 215.5 226.7 145.0 -30.6 .78 45 R SMOOTHNESS, SHEFFIELD. NtfN» STANDARD INSTRUMENT

GMEANS

:

104.9 128.0 1.00 95* ELLIPSE! 18. 8 7.7 WITH GAMMA - 53 DEGREES

17
SHEFF

.

UNITS

1

10

1

15

120

125

130

135

140

145

150

SMOOTHNESS , SHEFFIELD

SAMPLE E36 = 105. SHEFF. UNITS SAMPLE B91 = 128. SHEFF. UNITS

18
REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T45-2 TABLB t SMOOTHNESS , BEES SECONDS

TAPPI SOOGBSTBD METHOD T479 SU-71 . SMOOTHNESS OF PAPBR ( BEKE METHOD)

LAB SAMPLE

B36 WRITING

72 GRAMS PER SQUARE METER

SAMPLB

B91 HBAT

76 GRAMS SET OPFSBT BOOK1 PER SQUARB METER TBST D. -' 15 C0DB MEAN DEV N. DEV SDR R. SDR MEAN DBV N. DEV SDR R. SDR VAR F LAB

LI 39B 47.6 2.3 .84 5.2 1.14 50.5 4.3 .87 7.1 1.09 45K 0 LI 39

B

LI 62 41.0 -4.3 -1.62 4. 8 1.03 35.5 -10.7 -2.16 5.4 .84 45K 0 LI 62

LI 76 35.1 -10.2 -3.81 5.9 1.29 26.7 -19.5 -3.91 3. 5 .54 45K ft LI 76

LI 62 K 46.3 1 .0 .37 3.0 .65 51.4 5.2 1 .04 5. 8 .89 45K 0 LI 82

E

LI 90C 46.2 .9 .32 5.5 1.19 46.6 .4 .08 5. 6 .87 45K 0 L190C

L230B 48.7 3.4 1.26 3.9 .85 46.7 .5 .10 7.0 1 .07 45K 0 L230B

L232B 41.5 -3.8 -1.42 3.5 .77 41.4 -4.8 -.96 6.8 1 .04 45 K 0 L232B

L243K 43.9 -1.4 -.53 3.9 .84 48.4 2.2 .44 5.3 .81 4SK 0 L243E L291K 47.4 2.0 .75 6.1 1.32 46.1 -.1 -.01 7.2 1.12 45K 0 L291E

L58I 45.4 .1 .02 5.6 1 .22 49.2 3.0 .60 8.3 1.28 45K 0 L581

GR. MEAN * 45.3 BEKK SECONDS GRAND MEAN - 46.2 BEKK SECONDS TEST DETERMINATIONS - 15

SD MEANS - 2.7 BEKK SECONDS

AVERAGE SDR - SD OF MBANS - 4.6 BEEE SBCONDS

5.0 BBKK SECONDS

AVERAGE SDR

9 LABS IN GRAND

• 6.5 BBEE SBCONDS MBANS

LI82G 141.7 96 • 3 35.89 11.9 2.57 102.7 56.5 11.35 12.5 1.93 43B L1B2G

L250M 45.7 .4 .14 4.3 • 94 61.1 14.9 2.99 11.4 1.76 45L L250M

L251 43.5 -1 .8 -.68 3.3 .71 42.4 -3. 8 -.77 5.1 .78 45L L251

L3 8 8 680.4 635.0 236.59 90.0 19. 49 500.8 454.6 91.35 63. 8 9.82 45H • L388 TOTAL NUMBER OF LABORATORIES REPORTING • 14

Best Values: E36 45 Bekk seconds

B91 47 Bekk seconds

The following laboratories were omitted from the grand means because of extreme test results: 176.

REPORT NO. 52G TAPPI COLLABORATI VB REFERENCE PROGRAM MARCH 1978 ANALYSIS T45-2 TABLE 2 SMOOTHNESS , BEEE SECONDS

TAPPI SUGGESTED METHOD T479 SU-71 , SMOOTHNESS OF PAPBR ( BEEE METHOD)

LAB MEANS COORDINATES AVG

CODE F E36 B91 MAJOR MINOR R. SDR VAR PROPERTY—

-TEST INSTRUMENT- —C0NDITI0NS

LI 76 ft 35.1 26.7 -21 .9 1.4 .92 45 K SMOOTHNESS. BEKK

LI 6 2 0 41.0 35.5 -11.6 -.4 .93 45K SMOOTHNESS, BEKK L232B 0 41.5 41.4 -5.9 1.5 .90 45 K SMOOTHNESS, BEKK

L251 43.5 42.

4

-4.2 .1 .75 45L SMOOTHNESS, BEKK. 20 C, 65% RH L243E 0 43.9 48.4 1 .4 2.2 .83 45 K SMOOTHNESS, BEKK

L581 0 45.4 49.2 2.7 1.2 1.25 45K SMOOTHNESS, BEKK L250M 45.7 61.1 13.7 5.7 1.35 45L SMOOTHNESS, BEKK. 20 C. 65% RH L190C 0 46. 2 46.6 .7 -.6 1.03 45K SMOOTHNESS, BEKK

LI 82 E 0 46.3 51 .4 5.1 1.2 .77 45 K SMOOTHNESS, BEKK

L291 E 0 47.4 46.1 . 8 -1 .9 1.22 45K SMOOTHNESS, BEKK L139B 0 47.6 50.5 4.9 -.3 1.11 45 K SMOOTHNBSS, BEKK L230B O 48.7 46.7 1 .9 -2.9 .96 45K SMOOTHNESS, BEKE L192G 141.7 102.7 90.9 -64.8 2.25 45H SMOOTHNBSS, GURLBY 0IL FL0TATI0N

L388 GMEANS

:

680.4 45.3500.8

46.2

674.5 -393.6 14.66

1.00

45H SMOOTHNESS, GURLBY 0IL FL0TATI0N

95% ELLIPSE: 17.8 5.5 WITH GAMMA • 65 DBGRBES

19
REPORT NO* S2G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T47-1 TABLB 1 SMOOTHNESS, BENDTSBN

SAMPLE WHITING SAMPLE HEAT SBT 0FPSBT BOOK TEST D. "1 10 LAB E36 72 GRAMS PBR SQUARE METER B91 76 GRAMS; PER SQUARE MBTBR

C0DB MEAN DEV N. DEV SDR R. SDR MEAN DBV N. DEV SDR R.SDR VAB F LAB

LI 00 101 .7 .2 .14 7.9 .76 111.7 -10.0 -1.13 8.9 .65 47B e» LI 00

LI 76 103.6 2.1 1.69 3.7 .35 107.2 -14.5 -1.63 4.4 .32 47B e LI 76

LI 82B 101.6 .1 .06 8.2 .79 119.0 -2.7 -.31 11.3 .82 47B 0 LI 82 B L236 115.5 14.0 11.40 15.5 1.49 147.2 25.5 2.86 14.7 1.07 47B 9 L2 36 L242 99.9 -1.6 -1.33 13.8 1.33 124.2 2.5 .28 11.2 .81 47B 0 L242 L243B 101.2 -.3 -.27 19.9 1.92 130.5 8.8 .98 20.8 1.52 47B 0 L243B

L244 100.1 -1.4 -1.16 10.0 .96 120.6 -1.1 -.13 19.9 1.45 47B 0 L244

L280 63.8 -17.7 -14.46 12.0 1.16 142.1 20.4 2.29 31.6 2.30 47B 9 L280

L333 101 .4 -.1 -.10 9.5 .92 131 .0 9.3 1.04 19.4 1.41 47 B 0 L333

L484 102.7 1.2 .96 10.1 . 97 129.8 8.1 .90 14.0 1.02 47 B 0 L4 84

G8« MEAN • 101.5 ML/MI

N

GRAND MEAN - 121.7 ML/MIN TEST DBTBRMINATIONS • 10 SD MEANS - 1.2 ML/MIN SD OF MEANS • 8.9 ML/MIN 8 LABS IN GRAND MEANS AVBRAGE SDR • 10.4 ML/MI N AVERAGE SDR - 13.7 ML/MI

N

TOTAL NUMBER OF LABORATORIES REPORTING - 10

Best Values: E36 101 milliliter per minute

B91 122 milliliter per minute

The following laboratories were omitted from the grand means because of extreme test results: 236,

280.

REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T47-1 TABLB 2 SMOOTHNESS, BBNDTSEN

LAB MEANS COORDINATES A VO C6DB F B36 B91 MAJOR MINOR R. SDR VAR PROPERTY-

-TEST INSTRUMENT—CONDITIONS

L2 80 9 83. 8 142.1 -21,3 -16.6 1.73 47B SMOOTHNESS, BBNDTSBN, WG 150 L242 0 99.9 124. 2 •2 • 5 -1.5 1.07 47 B SMOOTHNESS. BENDTSBN, WG 150

L2 44 0 100.1 120.6 1 .1 -1.5 1 .21 47B SMOOTHNESS, BENDTSBN, WO 150 L243B 0 101.2 130. 5 -8.8 .1 1.72 47 B SMOOTHNBSS. BENDTSBN, WG 150 L333 0 101.4 131.0 -9.2 .4 1.16 47 B SMOOTHNESS. BENDTSBN, WO 150

LI 82

B

0 101.6 119.0 2 • 6 -.1 .81 47 B SMOOTHNBSS. BBNDTSBN. WG 150

LI 00 0 101.7 111.7 10.0 -.4 .70 47 B SMOOTHNESS, BBNDTSEN, WG 150

L4 84 0 102.7 129.8 -8.0 1.6 1.00 47 B SMOOTHNBSS. BBNDTSBN, WG 150

LI 76 0 103.6 107.2 14.6 1.3 .34 47 B SMOOTHNESS, BENDTSBN. WG 1 50

L2 3 6 * 115.5 147.2 -24.7 15.3 1.28 47B SMOOTHNESS, BBNDTSEN. WG 150 GMBANS

:

101.5 121.7 1 .00 95* ELLIPSE: 30.9 3.9 WITH GAMMA *-86 DEGRBES

20
REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1970 ANALYSIS T56-1 TABLE 1 KAN INK ABSORPTION

LAB SAMPLE

H80 84 GRAMS

PRINTING

PER SQUARE METER

SAMPLE

H58 106 GRAMS PRINTING

PER SQUARE METER TEST D. • 4 CODE MEAN DEV N.DEV SDR R. SDR MEAN DBV N.DEV SDR R. SDR VAR F LAB

LI 2 6 62.4 -3.6 -.72 .5 . 85 60.6 -3.8 -.68 .3 • 61 56K 0 LI 26

LI 49 £8.0 -e. o -1.60 .0 • 00 56.7 -7.6 -1.39 .5 1.17 56K 0 LI 49

LI 8 2 64.8 -1 .1 -.23 .5 .97 63.1 -1.3 -.24 .2 • 40 56K 0 LI 82

L21 3 72.6 6.6 1 .33 1.0 1.94 71.2 6.9 1.25 .7 1.53 56K 0 L213

L2 77 71 .5 5.5 1.12 .6 1.07 68.5 4.1 .75 .6 1 . 35 56K 0 L277

L2 7 8 67.4 1.4 .28 .7 1.21

L291 68.5 2.6 .52 .7 1.33

L339 26.6 -39.4 -7.93 .2 .37 L388 62.5 -3.5 -.70 .3 .62

GR. MEAN • 66.0 K 4 N UNITS GRAND MEAN

SD MEANS - 5.0 K 4 N ONUS SD OF MEANS AVERAGE SDR - .5 K A N UNITS TOTAL NUMBER OF LABORATORIES REPORTING - 9

Best Values: H80 66 K & N units

H58 64 K & N units

The following laboratories were omitted from the grand means because of extreme test results: 339.

69.5 5. 1 .93 • 2 .43 56K 0 L278

67.1 2. 8 .51 .2 .56 56K 0 L291 26.7 -37.6 -6.85 .5 1.17 56K ft L339

58.1 -6.2 -1.13 . 8 1.97 5 6 K 0 L388

64.4 KAN UNITS TEST DETERMINATIONS - 4 5.5 KAN UNITS 8 LABS IN GRAND MEANS AVERAGE SDR - .4 K A N UNITS

REPORT NO. 52G TAPPI COLLABORATI VE REFERENCE PROGRAM MARCH 1978 ANALYSIS T56-1 TABLE 2 KAN INK ABSORPTION

LAB MEANS COORDINATES AVG

CODE F H8C H58 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST I N STRUMENT-- -C0NDI T I ON

S

L339 * 26.6 26.7 -54.3 4.1 .77 56 K INK ABSORPTION. KAN INK TEST

LI 49 0 58.0 56.7 -11.0 . 8 . 58 56 K INK ABSORPTION, KAN INK TEST

LI 26 0 62.4 60.6 -5.2 • 2 .73 56 K INK ABSORPTION, KAN INK TEST

L388 0 62.5 58.1 -6.9 -1.6 1.29 56 K INK ABSORPTION, KAN INK TEST

LI 82 0 64.

8

63.1 -1 .

7

-.0 .69 56 K INK ABSORPTION, KAN INK TEST

L2 7 8 0 67.4 69.5 4.

8

2.4 .82 56 K INK ABSORPTION, KAN INK TEST

L291 0 68. 5 67.1 3.

8

-.1 .94 56K INK A 8S0RPTI ON, KAN INK TEST L277 0 71.5 68.5 6.8 -1.4 1.21 56 K INK ABSORPTION, KAN INK TEST

L21 3 0 72.6 71.2 9.5 -.3 1.73 56K INK ABSORPTION, KAN INK TEST GMEANS 66.0 64.4 1.00 95% ;ELLIPSE: 25.3 4.3 WITH GAMMA - 48 DEGREES

21
REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALTSIS T57-1 TABLE i HYDROGEN ION CONCENTRATION (PH). COLD

TAPPI STANDARD T509 OS-77

MARCH 1978

SAMPLE

J17 PRINTING

93 GRAMS PER SQUARE METER

SAMPLE

J61 PRINTING

86 GRAMS PER SQUARE MBTER TEST D. *

C0DB MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

L17 4C 5.040 • 275 1.52 .055 1.06 5.240 -.382 -8.16 .055 • 86 57F 9 L174C L182C 4. 720 -.045 -.25 .045 .67 5.640 • 018 .39 .055 .86 57D 0 LI 82C L251C 4.674 -.091 -.50 .034 .65 5.556 -.066 -1 .40 • 042 • 66 57P 0 L251C

L328 4.550 -.215 -1.19 .050 .97 5.590 -.032 -.68 .089 1.40 57M O L328

L356 4. 860 .095 .53 .020 .39 5.662 • 040 .86 • 044 • 69 57V 0 L356

L484A 5.020 .255 1 .41 .110 2.12 5.660 .038 .82 • 089 1 .40 57Y 0 L4 84A

GR . MEAN • 4.765 PH UNITS GRAND MEAN * 5.622 PH UNITS TEST DETERMINATIONS - 5 SD MEANS - .181 PH UNITS SD OF MEANS - .047 PH UNITS 5 LABS IN GRAND MEANS AVBRAGE SDR • .052 PE UNITS AVERAGE SDR - .064 PH UNITS

L44 2 4. 093 -.672 -3.72 .072 1.39 4.845 -.776 1 o> 0* o .174 2.72 570 L442 TOTAL NUMBER OF LABORATORIES REPORTING

Best Values: J17 4.7 pH units

J61 5.6 pH units

The following laboratories were omitted from the grand means because of extreme test results: 174C.

REPORT NO. 520 TAPPI COLLABORATI VB REPBRBNCE PROGRAM MARCH 1978 ANALYSIS T57-1 TABLE 2 HYDROGEN ION CONCENTRATION (PH), COLD

TAPPI STANDARD TS09 OS-77

LAB MEANS COORDINATES AVG

C0DB F J17 J61 MAJOR MINOR R. SDR VAR FROPERTT--— TEST INSTRUMENT-—CONDITIONS

L442 4.093 4.845 -.812 -.628 2.06 57Q PH, HOT, W.G.PTB

L3 2 8 0 4.550 5.590 -.217 .011 1.18 57 M PH. COLD. BBCKMAN ZBROMATIC

L251C 0 4.674 5.556 -.102 -.046 .66 57 P PH. COLD. RADIOMBTBR TYPE PH M64

LI 82C 0 4.720 5.64 0 -.040 .027 . 86 57 D PH. COLD, RADIOMBTBR TYPE PH M 28

L3 5 6 0 4.860 5.662 .1 01 .021 .54 57V PH. COLD, BBCKMAN BZPANDOMATIC

L484A 0 5.020 5.660 .258 -.013 1.76 57T PH. COLD, BECKMAN MODBL H2

LI 74C * 5.040 5.240 .194 -.428 .96 57 F PH. COLD, FISHER ACCUMET MODBL 220 GMEANS

:

4.765 5.622 1 .00 95% ELLIPSB: .930 .151 WITH GAMMA • 11 DBORBES

22
REPORT N5. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978

ANALYSI

S

TS7-2 TABLE 1 HYDROGEN ION CONCENTRATION (PH), HOT

TAPPI STANDARD T435 OS-77 SAMPLE PRINTING SAMPLE PRINTING TEST D. • 5 LAB J17 93 GRAMS PBR SOUARE METER J61 86 GRAMS PER SOUARE METER

COD £ MEAN DEV N.DEV SDR R. SDR MEAN DBV N.DEV SDR R. SDR VAR F LAB

LI 2 8 4.20 -.18 -1.27 .00 .00 4.86 -.28 -1.18 .05 .56 57L o LI 28

LI 31 4.56 .18 1.23 .15 2.14 5.34 .20 .85 .13 l . 36 57L n LI 3 1 LI 6 2 4.27 -.11 -.77 .04 . 58 4.88 -.26 -1.09 .03 . 33 57C 0 LI 6

2

LI 74H 5.16 ,78 5.40 .13 1 . 89 5.28 .14 .60 .13 1 .33 57G tt LI 74

H

LI 82H 4.34 -.04 -.30 .05 . 77 5.08 -.06 -.25 . 04 .45 57E 0 LI 82 H

L3 3 $ 4.39 .00 .02 .06 .90 5.25 .11 .47 .15 1 .97 57C 0 L334 L484B 4.54 .16 1.09 • 11 1.61 5.42 .28 1.19 .13 1 .33 S7Z 0 L4 84 b

GR. MEAM - 4.38 PH UNITS GRAND MEAN - 5.14 PH UNITS TEST DETERMINATIONS - 5 SD MEANS - .14 PH UNITS SD OF MEANS - .24 PH UNITS 6 LABS IN GRAND MEANS AVERAGE SDR • .07 PH UNITS AVERAGE SDR • .10 Pi UNITS TOTAL NUMBER OF LABORATORIES REPORTING - 7 Best Values: J17 4.4 pH units J61 5.2 pH units

The following laboratories were omitted from the grand means because of extreme test results: 174H.

REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1979 ANALYSIS T57-2 TABLE 2 HYDROGEN ION CONCENTRATION (PH). HOT

TAPPI STANDARD T435 OS-77

LAB MEANS C00RD INATFS AVG CODE F J17 J61 MAJOR MINOR a. SDR VAR PROPERTY- - - TEST INSTRUMENT- --CONDITIONS

LI 2 8 0 4.20 4. 86 -.33 .02 • 28 57L PH. HOT, L*N

LI 6 2 0 4.27 4. 88 — .2 9 -.04 .46 57C PH. HOT. CORNING MODEL 12 RESEARCH METER

LI 82

H

0 4.34 5.08 -.07 . 01 .61 57E PH, HOT. RADIOMETER TYPE PH M 28

L3 3 4 0 4.39 5.25 . 1 0 .05 1 . 43 57 C PH, HOT, CORNING MODEL 12 RESEARCH METER

L484B 0 4.54 5.42 .32 .01 1.47 57Z PH, HOT. BECKMAN MODEL H2

LI 51 0 4.56 5.34 . 26 -.05 1.75 57 L PH. HOT, L»N

LI 74H 4 5.16 5.28 .52 -. 60 1.61 57G PH, HOT, FISHER ACCUMFT MODEL 220 GMEANS

:

4.38 5.14 1 .00 95% ELLIPSE: 1.14 .16 *ITH GAMMA • 59 DEGREES

23
REP0RT Nr*. 52C MARCH 15^8

LAB C0DB

LI 05

Li 0 8

LI i 5

Li 18

Li 2 1

LI 22

Li 23

Li 24

Li 25

Li 31

Li 2 2

LI 3 4 Li 3 6

L2 3 9

LI 4 8

H

Li 50

LI 52

Li 53

Li 57

Li 5 8

Li 59

Li 6 2 Li 6 6

Li 72

Li 73A

LI 82

Li 83

LI 90C

LI 90 R L2 0 b

L21 OB

L21 OD

L21 IS

L21 3 L223B

L2 2 5 L22 6B

L228

L2 30 L233B L236B

L2 3QA

L241

L2 4 3 L254

Lc 3 5 L259

L2 6 1 L262 L275

L2 7 8 L281 L288

L301 L30 8

L3i 5 L31 7 L31 8 L3 2 3 L326

L3 2 8 L3 3 3 L339

L341 L349

TAPPI C0LLAB0RATIVE REFERENCE PROGRAM ANALYSIS T60-1 TABLE 1 OPACITY (89% REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75. OPACITY OF PAPER (15 DEG • /DIFFUSE , ILLUMINANT A) • BAL TYPE SAMPLE

E50 OFFSET PRINTING

96 GRAMS PER SQUARE METER

SAMPLE

H51 91 GRAMS PRINTINGPER SQUARE METFR TEST D. • 10 MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAfc F LAB 92.58 .29 .51 .93 1.80 91 .17 . 99 1 .80 .93 2. A3 60H 8 LI 05 92.58 .29 .51 .39 .76 90.30 .12 • 21 .27 .72 609 8 LI C 8 93.05 .76 1.34 .43 .64 90.71 .53 .96 .29 .76 6 0 B 0 LI 15 92.02 -.27 -.49 • 68 1.32 90.81 .63 1.15 • 22 .58 60B 0 LI 1 8 92.20 -.09 -.17 .90 1.76 90.50 .32 .58 • 26 .68 60 B 0 LI 21

91 . 84 -.45 -.81 .67 1.30 90.07 -.11 -.21 .37 .97 6 OD e LI 22 92.28 -.01 -.02 .79 1 . 54 89.96 -.22 -.41 .42 1.10 60% 0 LI 23

91 .99 -.30 -.54 .72 1 • 40 89.60 -.58 -1.06 .42 1 . 09 60B « LI 2

4

92.53 .24 • 42 • 51 . 99 89.75 -.A3 -.79 .42 1.10 60b o LI 25 92.02 -.27 -.49 .30 .59 89.57 -.61 -1.12 .31 .80 6GR 0 LI 31

91 .80 -.49 -.88 .52 1.01 89.75 -.43 -.79 .35 .91 60S 0 Li 32 93.54 1.25 2.22 .23 • 4 5 91.33 1.15 2.09 .29 .76 6 OB o LI 34 92.95 .66 1.17 .53 1 . 02 90.13 -. 05 -.10 • 21 . 5 A 60 H e LI 36 92.39 .10 .17 .46 . 89 89.90 -.28 -.52 • 22 .58 60R 6 LI 39 92.02 -.27 -.49 .27 . 53 90.27 .09 • 16 .45 1.17 60 H 0 LI 48b 92.75 .46 .81 .49 .94 90.35 .17 .31 .41 1 .07 60S 0 LI 50 92.69 .40 .70 .49 .95 90.39 .21 .38 .32 .85 60B 0 LI 52 90.86 -1.43 -2.55 .74 1.43 88.00 • IM CO -3.99 • 62 1.62 60B X LI 5 3 92.95 • 66 1.17 .60 1.16 90.60 .42 .76 .46 1 .20 60b 0 LI 57

93. C6 .77 1 • 36 .67 1.31 90.23 .05 • 09 .39 1.02 60D 0 Li 50

92.80 .51 .90 .25 .48 90.25 .07 .12 • 22 .58 6 0 R 0 LI 59 92.88 .59 1 .04 .23 . 45 90.93 .75 1 • 36 .33 . 85 60% 0 LI 6

2

9i .72 -.57 -1.02 • 46 .90 88.76 -1.42 -2.60 .32 . 82 60B • M 66 92.72 .43 .76 .49 .95 90.48 . 30 • 54 .26 .68 6CB 0 Li 72

91 .67 -.62 -1.11 .64 1.25 89.78 -.40 -.74 .23 .61 60 B 0 LI 73

A

92.6 0 • 31 .54 .46 . 89 89.60 -.38 - .70 .42 1.10 6CB 0 Li 82 92.22 -.07 -.13 .28 • 55 90.20 • 02 .03 .27 .70 60 3 0 LI 83 92.90 • 61 1.08 .39 .77 90.12 -.06 -.11 .34 .88 60 B 0 LI 90C 92.92 .63 1.11 .36 . 71 90.14 -.04 -.08 .38 1 .00 6 OB 0 LI 90

R

92.50 • 21 . 37 .41 . 79 89.92 -.26 - .48 .36 .93 60B 0 L206 92.70 .41 .72 .49 . 95 90.27 • 09 .16 .35 .92 6CB 0 L210B

92.61 • 32 .56 .51 • 98 90.02 -.16 -.30 .35 .92 60 D 0 L210D

92 .12 -.17 -.31 .45 .87 89.69 -.49 -.90 • 31 . 80 60 R 0 L211S

92.39 .10 .17 .51 . 99 90.53 .35 • 63 .68 1.78 60B 0 L21 3 92 .87 .58 1 .02 • 19 . 37 90.21 .03 .05 .26 .68 609 0 L2e IB

93.10 .81 1 .43 .70 1.36 91 .45 1.27 2. 31 • 60 1.58 60 B 0 L? 25 93.03 .74 1 .31 .76 1.48 90.46 .28 • 51 .35 .91 60 B 0 L226B

92 .77 .48 . 85 .50 . 98 89.77 -.41 -.75 .38 .89 6 OH 0 L2 2 8 92.90 .61 1 .08 .42 . 81 90.54 .36 .65 .31 .82 60B 0 L23C

92 .70 .41 .72 .75 1 .46 90.30 • 12 • 21 .35 .91 60 B 0 L233B

91 .88 -.41 -.74 .84 1.63 89.40 -.70 -1 .43 .63 1 .55 6 OB 0 L236B

92.24 -.05 -.1C .35 . 68 89.06 -1.12 -2.05 .30 .99 60 R » L238A

93.04 . 75 1.33 .57 1.11 90.76 .58 1.05 .55 1 . AA 6 OB 0 L24

1

92 .47 . 1 8 • 31 • 52 1 • 00 90.30 • 12 • 21 . *2 1.09 60 B 0 L243

92.10 -.19 -.34 .42 • 81 90.00 -.18 -.33 .19 .51 60H 0 L254 92.25 -.04 -.09 .27 . 53 90.28 • 10 .18 .25 .65 60B P L255

9 2.64 .35 • 62 . 34 .67 90.57 • 39 .71 .34 .89 60 B 0 L259 93.49 1.20 2.13 • 51 .98 91 .30 1.12 2.04 .39 1.03 6 Ob 0 L261

92 .42 .13 • 22 .21 • 41 89.99 -.19 -.35 • 11 .29 6 0 R 0 L262

92 .66 .37 .65 • 28 . 54 90. 34 • 16 .29 .16 .43 60 R 0 L275

91 .32 -.97 -1 .73 .40 • 94 89.91 -.27 -.50 .30 .99 60 B 0 L273

92.29 -.00 -.01 • 62 1 .20 90. 04 -.14 -.26 .30 . 77 60D 0 L281 92.78 .49 • e6 • 51 • 99 90.79 • 61 1.11 .34 .90 60 D 0 L288

91 .91 -.38 -.68 .42 • 82 89.56 -.62 -1.14 • 24 .62 60B 0 L301

92 .30 • 01 • 01 .49 . 95 90.42 .24 .43 .43 1.12 60H 0 L308

93 .01 .72 1 .26 • 41 • 79 90.35 .17 .31 .33 .87 60 D 0 L315 92.58 .29 .51 .53 1 • 04 90. 83 .65 1 .18 .74 1 .92 60 B 0 L317

92. CO -.29 -.52 .62 1.21 90.10 -.08 -.15 .39 1 .03 6 0 B 0 L318

92 .48 • 19 .33 .68 1 . 33 90.39 • 21 .38 • 33 . 86 60% 0 L323 92.36 .07 .12 .55 l.O^ 91.25 1 . 07 1.95 .36 .93 6 0 B 0 L326

91 . 30 -.99 -1.77 .62 1 • 60 88.60 -1 .58 -2 . 89 .46 1 .20 6 0 B • L3c

91 .92 -. 37 -.66 .96 1 • 88 90.05 -.1 3 -.24 .76 1 .99 60 B 0 L2i

91 .35 -. 94 -1 .68 .78 1. 52 89.80 -.38 -.70 1.25 3.26 60B 0 L3LV

90 .24 -2.05 -3.65 .33 • 64 88.77 -1 .41 -2.58 • 21 . 55 60 R X L341

92 .45 .16 .28 .40 • 77 90.40 • 22 • 40 • 31 .81 60D 0 L349 24
REPORT NO. S2G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1976 ANALYSIS T60-1 TABLE 1 OPACITY (89% REFLECTANCE BACKING) IN PBRCENT

TAPPI STANDARD T42S OS-75. OPACITY OF PAPER (15 DBG. /DIFFUSE. ILLUMINANT A) - BAL TYPE SAMPLE 0FPSBT PRINTING SAMPLB PRINTING TEST D. • 10 LAB E50 96 GRAMS PBR SQUARE METER H51 91 GRAMS PER SQUARE METER

C0DB MEAN DEV N. DBV SDR R. SDR MEAN DBV N. DEV SDR R. SDR VAR F LAB

L352 91 .20 -1.09 -1.94 .29 . 56 89.47 -.71 -1.30 .27 .71 6 OR 0 L352

L3 5 4 91 .00 -1.29 -2.30 .47 . 92 89.60 -.58 -1.06 .52 1 .34 6 OB 0 L354

L366 91 .90 -.39 -.70 .74 1.43 90.02 -.16 -.30 .49 1.29 6 0 B 0 L366

L3 7 8 92.53 .24 .42 .29 .57 91 .28 1.10 2.00 .38 1.00 6 OD 0 L37Q

L390 91 .79 -.50 -.90 .60 1.17 89.95 -.23 - . 43 .49 1.26 60B 0 L390 L5C2D 91 .50 -.79 1 <* 0 .58 1.12 89.97 -.21 -.38 .36 .93 60D 0 L502D

L502H 92.39 • 10 .18 • 41 . 80 90.83 .65 1.18 .40 1.04 60B 0 L502H

L502R 91 .78 -.51 -.91 .36 .70 90.27 • 09 .17 .29 .76 60 R 0 L502R

L523 91.64 -.65 -1.16 .34 . 66 89.99 -.19 -.35 .38 .99 6 0 R 0 L52 3 L543 91 .31 -.98 -1.75 .46 . 90 89.49 -.69 -1.27 .44 1.15 60D 0 L543

L561 91 .40 -.89 -1.59 .70 1.36 90.00 -.18 -.33 .47 1 . 23 60B 0 L561

L581 92.03 -.26 -.47 .56 1.09 90.62 • 44 .80 .34 .89 60B 0 L581 L587 91 .86 -.43 -.77 .58 1.12 90.37 .19 .34 .34 .89 60 B 0 L587

L592 91 .51 -.78 -1.39 .51 . 99 89.40 -.78 -1.43 .14 .37 60 W 0 L592

L594 92.07 -.22 -.40 .56 1.08 90.27 • 09 .16 .18 .48 60D 0 L594

L597 91 .50 -.79 -1 .41 .97 1.89 90.10 -.08 -.15 .84 2.20 6 0 B 0 L597

L59 9 92.35 .06 .10 .53 1.03 90.45 .27 .49 .37 .96 60 B 0 L599

L602 91 .40 -.89 -1.59 .38 • 74 89.23 -.95 -1.74 .23 .60 60 B 0 L602

L60 8 93.72 1.43 2.54 .44 .86 92.21 2.03 3.70 .33 .87 60 D X L608

GR. MEAN • 92.29 PERCENT GRAND MEAN - 90.18 PERCENT TEST DETERMINATIONS - 10 SD MEANS - .56 PERCENT SD 0F MEANS - .55 PERCENT 81 LABS IN GRAND MEANS

AVBRAGE SDR - .51 PERCENT AVBRAGE SDR • .38 PERCENT

LI 00 92.14 -.15 -.27 .35 . 67 90.46 .28 .51 .28 .72 60E LI 00

L2 2 4 93.10 . 81 1 .43 .32 .61 90.95 . 77 1.40 .55 1 .43 6 OP L224

L232 92.35 • 06 .10 .53 1 . 03 88.40 -1.78 -3.26 .57 1 .48 60P L2 32 L236E 92.69 .40 .70 .32 .63 90.32 .14 .25 .39 1 . 01 60E L236E

L2 4 9 92 .76 .47 .83 • 46 .89 90.49 .31 .56 .30 .78 60P L249

L2 5 6 92 .47 • 18 .32 .46 .90 90.21 .03 .05 .29 .76 60N L256

L260 92.45 .16 .28 .37 .72 89.70 -.48 -.88 • 26 .67 60P L260

L2 7 7 8.70 -83.59 -148.61 1 .06 2.06 10.70 -79.48 -1 45.15 1.83 4.76 6 OP L277

L3 0 9 91 .72 -.57 -1.02 .29 . 56 88.89 -1.29 -2.36 .27 .70 60 A L309

L31 2 91.20 -1.09 -1 .54 .35 .68 89.20 -.98 -1 . 80 .59 1.53 60P L312

L31 4 92.74 .45 .79 .46 .90 90.82 .64 1.16 .40 1 . 05 60T L31 4 L3 8 8 91 .10 -1.19 -2.12 .52 1.00 89.15 -1.03 -1.89 .63 1 .63 6 0 P L388 TOTAL NUMBER OF LABORATORIES REPORTING - 96

Best Values: E50

H51 92.3 + 0.9 percent

90.2 + 1.0 percent

25
REPORT NO. 520 TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T60-1 TABLE 2 OPACITY ( 89% REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75. OPACITY OP PAPER <15 DBG. /D IFF USB. ILLOMINANT A) - B4L TYPB

LAB MEANS COORDINATES AVG CODE F E50 H51 MAJOR MINOR R. SDR VAR PROPERTY— -TEST INSTRUMENT—CONDI TIONS

L277 8.70 10.70 -115.35 .48 3.41 60P OPACITY < WHITB BACKING ). PHOTOVOLT

L341 X 90.24 88.77 -2.46 .40 .59 60B OPACITY < WHITE BACKING), THWING-ALBBRT ( FORMERLY SRL ) LI 53 X 90.66 88.00 -2.55 -.58 1.53 60B OPACITY < WHITE BACKING), BADSCH LOMB

L354 0 91 .00 89.60 -1.34 .47 1.13 60 B OPACITY < WHITE BACKING), BACISCH * LOMB

L388 91 .10 89.15 -1 . 58 .08 1 .32 60 P OPACITY ( WHITE BACKING), PHOTOVOLT

L352 6 91.20 89.47 -1.2 8 .24 .63 60 R OPACITY < WHITE BACKING), THWINQ-ALBBRT ( PORMERLY SRL ) L31 2 91 .20 89.2 0 -1.47 . 05 1.10 60 P OPACITY < WHI TB BACKING), PHOTOVOLT

L328 * 91.30 88.60 -1.81 -.46 1.40 60B OPACITY < WHITE BACKING), BAUSCH LOMB

L543 0 91.31 89.49 -1.19 .18 1.02 60D OPACITY < WHITE BACKING), DI ANO/BHL

L278 0 91.32 89.91 -. 89 .48 .97 60B OPACITY < WHI TB BACKING), BADSCH * LOMB

L339 0 91 .35 89.80 -.95 . 38 2.39 60 B OPACITY ( WHITE BACKING), BADSCH - LOMB

L60 2 0 91.40 89.23 -1.30 -.07 .67 60 B OPACITY ( WHITE BACKING ), BADSCH • LOMB

L561 0 91.40 90.00 -.77 .49 1.29 60B OPACITY ( WHITE BACKING), BADSCH LOMB

L59 7 0 91 .50 90.10 -.63 .49 2.04 60B OPACITY < WHI TB BACKING), BADSCH * LOMB

L502D 0 91.50 89.97 -.71 .40 1.02 60 D OPACITY < WHITE BACKING), DI ANO/BNL

L592 0 91 .51 89.4 0 -1.11 -.02 .68 60 W OPACITY < WHI TE BACKING), HOYGBN. DIGITAL

L523 0 91 .64 89.99 ” . 61 .31 .82 60R OPACITY ( WHITE BACKING ), THW I NG- ALBERT ( FORMBRLY SRL > Li 7 3 A. 0 91 .67 89.78 -.73 .14 .93 60B OPACITY < WHI TE BACKING ), BADSCH LOMB

L309 91 .72 88.89 -1.31 -.54 .63 60 A OPACITY ( WHITE BACKING ), ZEISS BLRBPH0. PILTBR 4. 86% BACKING

Li 6 6 * 91 .72 88.76 -1.40 -.63 .86 60B OPACITY < WHI TE BACKING ), BADSCH * LOMB L502R 0 91 .78 90.27 -.31 .42 .73 60 R OPACITY < WHITE BACKING ), THW I NG- ALBERT ( FORMBRLY SRL ) L39 0 0 91 .79 89.95 -. 52 .18 1 .22 60 B OPACITY < WHITB BACKING), BADSCH LOMB

Li 3 2 0 91.80 89.75 — . 66 .03 .96 60 B OPACITY ( WHI TE BACKING ), BADSCH LOMB

LI 22 0 91.84 90.07 -.41 .23 1.13 60 D OPACITY < WHITB BACKING), DIAN0/BNL

L5B 7 0 91.86 90. 37 -.18 .44 1.00 60 B OPACITY ( WHITB BACKING ), BADSCH LOMB

L2 3 5B 0 91 .88 89.4 0 -. 84 -.28 1.64 60 B OPACITY (WHITB BACKING), BADSCH LOMB

L366 0 91 .90 90.02 -.40 .15 1.36 60 B OPACITY < WHITE BACKING ), BADSCH * LOMB

L301 0 91 .91 89.56 -.71 -.18 .72 60 B OPACITY < WHITB BACKING), BADSCH LOMB

L33 3 0 91 .92 90.05 -.36 .16 1 .93 60 B OPACITY < WHITB BACKING ), BADSCH * LOMB

Li 2 4 0 91 .99 89.6 0 -.62 -.21 1 .25 60B OPACITY < WHITE BACKING ), BADSCH * LOMB

L3i 8 0 92.00 90.10 -.27 .14 1.12 60 B OPACITY < WHITB BACKING ). BADSCH LOMB

Li 1 8 0 92.02 90.81 .24 .64 .95 60 B OPACITY < WHI TB BACKING ), BADSCH LOMB

Li 4 8H 0 92.02 90.27 -.14 .25 .85 60 B OPACITY ( WHITE BACKING ), HDYGEN

Li 31 0 92.02 89.57 -.62 -.25 .69 60 R OPACITY ( WHITE BACKING ), THWING-ALBBRT ( PORMERLY SRL)

L581 0 92.03 90.62 .11 .50 .99 60 B OPACITY < WHITE BACKING ), BADSCH LOMB

L59 4 0 92.07 90.27 -.10 .22 . 78 60D OPACITY < WHITE BACKING ), DIAN0/BNL

L2 54 0 92.10 90.00 -.27 .00 .66 60 H OPACITY < WHI TB BACKING ), HDTGBN

L21 1 S 0 92.1 2 89.69 -.47 -.24 .83 60 R OPACITY < WHITE BACKING), THWING-ALBBRT ( FORMBRLY SRL > Li 0 0 92.14 90.46 .08 .31 .70 60B OPACITY < WHI TE BACKING ), ZEISS BLREPH0, PMY-C(IO) FILTER

Li 21 0 92.20 90.50 .15 .29 1.22 60 B OPACITY < WHITB BACKING ), BADSCH LOMB

LI 8 3 0 92.22 90.20 -.04 .06 .63 60 B OPACITY < WHITB BACKING ), BADSCH LOMB

L238A * 92.24 89. 06 -.82 -.77 .84 60 R OPACITY < WHI TE BACKING ), THWING-ALBBRT ( FORMBRLY SRL ) L255 0 92.25 90.20 .04 .10 .59 60B OPACITY < WHITE BACKING ), BADSCH LOMB

Li 2 3 6 92.28 89.96 -.16 -.15 1.32 60 W OPACITY < WHITE BACKING ), HDYGEN. DIGITAL

L2 8

1

0 92.29 90.04 -.10 -.10 .99 60 D OPACITY < WHI TB BACKING ), DI ANO/BNL

L308 0 92.30 90.42 .17 .17 1.03 60 H OPACITY < WHITB BACKING ), HUYOBN

L232 92.35 88.40 -1 .19 -1.33 1.25 60 P OPACITY < WHITB BACKING ). PHOTOVOLT

L5 9 9 0 92.35 90.45 .23 .15 1.00 60 B OPACITY < WHI TE BACKING ), BAUSCH LOMB

L326 0 92.36 91 .25 .79 . 72 1 .00 60B OPACITY < WHITE BACKING ). BADSCH * LOMB

Li 39 0 92.39 89.90 -.13 -.27 .73 60 B OPACITY < WHI TB BACKING ), BADSCH LOMB

L2i 3 0 92.39 90.53 .31 .18 1.39 60 B OPACITY < WHITE BACKING ), BADSCH LOMB

L502H 0 92.39 90.83 . 52 .40 .92 60 B OPACITY < WHITB BACKING ), BADSCH - LOMB

L262 0 92.42 89.99 -.04 -.23 .35 60R OPACITY < WHITB BACKING ), THWING-ALBBRT ( FORMBRLY SRL ) L260 92.45 89.70 -.22 -.46 .69 60 P OPACITY < WHITE BACKING ), PHOTOVOLT

L349 0 92.45 90.40 .26 .05 .79 60D OPACITY < WHI TE BACKING ), DI ANO/BNL

L243 0 92.47 90.30 .21 -.04 1.05 60 B OPACITY < WHITE BACKING ), BADSCH LOMB

L256 92.47 90.21 .15 -.10 .83 60 N OPACITY ( WHI TE BACKING ), HUNTER

L323 0 92.48 90.39 .28 .02 1.10 60 W OPACITY < WHITE BACKING), HDYGEN, DIGITAL

L2 0 6 0 92.50 89.92 -.03 -.33 . 86 60B OPACITY < WHI TB BACKING ), BADSCH LOMB

Li 2 5 0 92.53 89.75 -.13 -.48 1.04 60 H OPACITY ( WHITE BACKING ), HDYGEN

L378 0 92.53 91.28 .93 .63 .78 60D OPACITY (WHITB BACKING ), D I ANO/BNL

Li 0 5 0 92.58 91.17 .89 .51 2.11 60H OPACITY < WHI TE BACKING ), HDYGEN

L31 7 0 92.58 90. 83 .65 .27 1.48 60 B OPACITY ( WHI TB BACKING ), BADSCH LOMB

Li 0 8 0 92.58 90.30 .29 -.11 .74 60B OPACITY ( WHI TE BACKING ), BADSCH LOMB

Li 82 0 92.60 69.80 -.04 -.49 1.00 60 B OPACITY ( WHITB BACKING ), BADSCH LOMB

26
REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MiRCH 1978 ANALYSIS T60-1 TABLB 2 OPACITY (89* REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T42S OS-75, OPACITY OF PAPER (15 DEG. /DIFFUSE , ILLUMINANT A) =• B4L TYPB

LAB MEANS COORDINATES AVG

CODE F E50 H51 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST I NSTRUMENT---CONDI TI0NS

L21 OD a 92.61 90.02 .12 -.34 .95 60 D OPACITY ( WHITB BACKING ), DI AN0/BNL

L259 0 92.64 90. 57 .52 .04 .78 60 B OPACITY ( WHITB BACKING ), BAUSCH LOMB

L275 0 92.66 90.34 .37 -.14 .48 60 R OPACITY ( WHITB BACKING ), THWING-ALBBRT ( PORMERLY SRL ) L236E 92.69 90.32 .38 -.18 .82 60E OPACITY ( WHITE BACKING ), ZEISS BLREPHO, FMY-C(IO) FILTER

LI 52 0 92.69 90.39 .43 -.12 .90 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB L233B 0 92.70 90.30 .37 -.20 1.19 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L21 OB 0 92.7 0 90 .27 .35 -.22 .94 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

LI 7 2 0 92.72 90.48 .51 -.08 .82 60B OPACITY ( WHITB BACKING ), BAUSCH LOMB

L3I 4 92.74 90.82 .76 .15 .98 60 T OPACITY < WHITE BACKING ), SMALL SPHERE C0L0R EYE

Li 50 0 92.75 90.35 .45 -.20 1.01 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L249 92.76 90.49 • 55 -.10 .83 60 P OPACITY ( WHITE BACKING ), PHOTOVOLT

L2 2 8 0 92.77 89.77 .06 — • 63 .98 60 H OPACITY ( WHITB BACKING ), HUYGEN

L288 0 92.78 90.79 . 77 .10 . 95 60D OPACITY ( WHITE BACKING ), DIANO/BNL

LI 59 e 92.80 90.25 .41 -.30 .53 60R OPACITY ( WHI TE BACKING ), THWING-ALBERT (FORMERLY SRL ) L223B 0 92. 87 90.21 .43 -.38 .52 60B OPACITY ( WHITE BACKING ), BAUSCH L0MB

LI 62 0 92.88 90.93 .94 .13 .65 60 W OPACITY ( WHITE BACKING), HUYGBN, DIGITAL

LI 90C 0 92.90 90.1 2 .39 -.47 .82 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L2 3 0 a 92. 90 90.54 . 68 -.16 .81 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

Li 9 OR 0 92.92 90.14 .42 -.46 .85 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

LI 3 6 0 92.95 90.13 . 44 -.49 .78 60H OPACITY C WHITE BACKING ), HUYGEN

Li 57 0 92.95 90.60 .76 -.15 1.18 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L31 5 e 93.01 90.35 .63 -.38 .83 60D OPACITY ( WHI TE BACKING ). DIANO/BNL

L226B 0 93.03 90.46 .72 -.31 1.19 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L24i 0 93.04 90.76 . 94 -.10 1.27 60B OPACITY ( WHI TE BACKING ), BAUSCH LOMB

Li 15 0 93.05 90.71 .91 -.14 . 80 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

Li 58 0 93.06 90.23 .59 -.50 1.16 60 D OPACITY ( WHITE BACKING ), DIANO/BNL

L225 0 93.10 91 .45 1.46 .36 1.46 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L2 2 4 93.1 0 90.95 1.11 -.00 1.02 60 P OPACITY ( WHITE BACKING ), PHOTOVOLT

L261 0 93.49 91 .30 1.64 -.02 1 .01 60 B OPACITY ( WHI TE BACKING ). BAUSCH LOMB

Li 3 4 0 93.54 91.33 1.69 -.03 .60 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L60 8 X 93.72 92.21 2.43 . 48 .87 60D OPACITY ( WHITE BACKING ), DIANO/BNL

GMEANS : 92.29 90.1 8 1.00 95% ELLIPSE: 1.78 .84 WITH GAMMA 43 DEGREES

27
PERCENT

89.0

90.0

91-0

92.

0PRCITY, B£L TYPE, 89X BROKING

SAMPLE E50 = 92.3 PERCENT SAMPLE H51 = 90.2 PERCENT

PERCENT

28
REPORT MARCH 1978 NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T60-2 TABLE 1 OPACITY (PAPER BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75, OPACITY OF PAPER (15 DBG. /DI FFUSE. I LLUMINANT A) - BAL TYPE SAMPLE OFFSET PRINTING

LAB E50 96 GRAMS PER SQUARE METER

COPS MEAN DEV N.DBV SDR R. SDR

LI 1 5 92.89 -.42 -.71 .33 . 66

LI 18 92.44 -.87 -1.46 .73 1 . 44

Li 82 B 94.19 . 86 1.48 • 31 .61 L190C 93.73 .42 .70 • 32 .64

LI 90R 93.67 .36 .60 .45 .90 L236B 93.81 .50 .84 .70 1 • 40 L245 93.46 .15 .25 .49 . 97 L502D 93.49 .18 .31 .45 . 89 L502H 92 .98 -.33 -.55 .56 1.11

L54 3 92.44 -.87 -1 .46 .69 1 . 38

GR. MEAN - 93.31 PERCENT GRAND MEAN

SD MEANS - .59 PERCENT SD OP MEANS

AVERAGE SDR - .50 PBRCENT

TOTAL NUMBER OF LABORATORIES REPORTING - 10

Best Values: E50 93.3 percent

H51 91.8 percent

SAMPLE PRINTING TEST D. -

1 0 H51 91 GRAMS PER SQUARE METER

MEAN DEV N . DEV SDR R. SDR VAR F LAB 92.14 .23 .58 .23 .60 60C 0 LI 15

91 .75 -.16 -.39 .25 .66 6 OC 0 LI 18 92.84 .93 2.31 .66 1 .75 6 OC 0 LI 82 B 91.56 -.35 -.86 .31 . 82 6 OC 0 L190C

91 .88 -.03 -.07 .30 .81 60C 0 L190R

91.74 -.17 -.41 .64 1.69 60C 0 L236B

91.89 -.02 -.04 .26 .68 60C 0 L243 92.15 .25 .61 .46 1.21 60V 0 L502D

91 .73 -.17 -.43 .32 .84 60C 0 L502H

91.38 -.53 1.31 .35 .93 60V 0 L543

91.91 PERCENT TBST DETERMINATIONS - 10 .40 PERCENT 10 LABS IN GRAND MEANS AVERAGB SDR - .38 PERCENT

REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T60-2 TABLE 2 OPACITY (PAPER BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75, OPACITY OF PAPER (15 DEG. /DI FFUSE. I LLUMINANT A)

MARCH 1978

BAL TYPE

LAB MEANS COORDINATES AVG CODB F B50 H51 MAJOR MINOR R. SDR VAR PROPERTY-- -TBST INSTRUMENT- —CONDI TI«

LI 1 8 0 92.44 91 .75 -.85 .26 1.05 60C OPACITY ( PAPER BACKING ). BAUSCH - LOMB

L543 0 92.44 91.38 -1.02 -.07 1.15 60V OPACITY ( PAPER BACKING). DIAN0/BNL

LI 1 5 0 92.89 92.14 -.27 .40 .63 60 C OPACITY ( PAPER BACKING ). BAUSCH LOMB

L502H 0 92 .98 91.73 -.37 -.01 .98 60C OPACITY ( PAPER BACKING ). BAUSCH LOMB

L2 43 0 93.46 91 .89 .13 -.08 .82 60C OPACITY ( PAPER BACKING), BAUSCH LOMB

L502D 0 93.49 92.1 5 . 28 .14 1 .05 60V OPACITY ( PAPER BACKING). DIANO/BNL

LI 9 OR 0 93.67 91.88 . 31 -.19 .85 60C OPACITY ( PAPER BACKING), BAUSCH LOMB

LI 9 OC 0 93.73 91.56 .22 -.50 . 73 60C OPACITY ( PAPER BACKING ), BAUSCH LOMB L236B 0 93.81 91.74 .37 -.38 1.55 60C OPACITY ( PAPER BACKING ), BAUSCH LOMB

LI 82

B

0 94.19 92.84 1.21 .43 1.18 60 C OPACITY ( PAPBR BACKING). BAUSCH LOMB

GMEANS

:

93.31 91.91 1.00

95* ELLIPSE: 2.05 .98 WITH GAMMA - 26 DBGREES

29
PERCENT

0PRCITY, B£L TYPE. PAPER BACKING

SAMPLE E50 = 93.3 PERCENT

l i i SAMPLE H51 = 91 .9 PERCENT_l 1 I L

LOCO

CD

LO

CM

CO

LO

jC

LU

_l

CL

2=

CE

CO

+ . X .

#

NOT IN GRAND MEANS

ANALYSIS T60-2

O

0

0

tr

LO

CO

LOO

CO

0

O

0 0

0

SAMPLE E50

91-5 92.5 93.5

PERCENT

94.5 95.5

30
REPORT N6. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T60-3 TABLE 1 OPACITY (PAPER BACKING) IN PERCENT

TAPPI SUGGESTED MBTHOD T51 9 SU>-70 . DIFFUSE OPACITY OF PAPER - ILLUMINANT C , ELREPHO TYPE

SAMPLE 6FF SET PRINTING SAMPLE PRINTING TBST D. - 10 LAB E50 96 GRAMS PER SQUARE METER H51 91 GRAMS PER SQUARE MBTER

CODE MEAN DEV N.DBV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI 00 93.59 -.40 -1.40 . 36 1.27 92. 84 -.00 -.00 .27 1.16 60 J 0 L100

LI 50 94.16 .17 .57 .30 1.03 92.42 -.42 -1 .56 .21 .92 60J 0 LI 50

LI 82

E

94.29 .30 1 .02 • 21 . 73 92.60 -.24 -.89 .16 .71 60 J e LI 82E L233F 94 .26 .27 .92 • 22 .78 92.81 -.03 -.11 .30 1 .30 6 OF © L233P

L242 94 .20 .21 .71 .09 .33 93.20 .36 1.33 .19 . 84 6 0 J © L242

L244 94 .39 .40 1.37 .35 1.22 93.17 .33 1.21 .14 .61 6 OF © L244 L250T 94 .19 .20 .68 .24 . 83 92.88 .04 .15 .24 1 .06 6 0 J 0 L250T

L251 92 .93 -1.06 -3.68 .35 1.24 91 .04 -1.80 -6.64 .29 1.26 60F n L251

L360 93.84 -.15 -.54 .26 .91 92.77 -.07 -.26 .43 1 .88 60F 0 L360

L4 4 6 93.58 -.41 -1.42 .29 1.00 92.60 -.24 -.90 .30 1 .30 60 J 0 L446

L484 93.85 -.14 -.49 .37 1.30 93.29 .45 1.64 .22 .96 6 OF 0 LA 84 L502 93.92 -.08 -.27 .35 1.22 92. 59 -.25 -.92 .10 .45 60 J 0 L502

L575 93.66 -.33 -1.16 .39 1.38 92.93 . 09 .31 .19 .82 6 0 J 0 L575

GR. MEAN • 93.99 PERCENT GRAND MEAN - 92.84 PBRCENT TEST DETERMINATIONS - 10 SD MEANS - .29 PERCENT SD OF MBANS - .27 PERCENT 12 LABS IN GRAND MEANS AVBRAGE SDR .29 PERCENT AVERAGB SDR - .23 PERCENT

LI 76 78.52 -1 5.47 -53.62 .13 .46 75.33 1 S U1 • 64.59 .07 .29 60Z LI 76 L564 93.10 -. 89 -3.10 .88 3.07 89.60 -3.24 ° 1 1.95 .52 2.23 6 OQ L564 TOTAL NUMBER OF LABORATORIES REPORTING * 15

Best Values: E50 94.0 + 0.4 percent

H51 92.8 + 0.4 percent

The following laboratories were omitted from the grand means because of extreme test results: 251.

REPORT NO. 5 2G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 197B ANALYSIS T60-3 TABLE 2 OPACITY (PAPER BACKING) IN PBRCENT

TAPPI SUGGESTED METHOD T519 SU-70, DIFFUSE OPACITY OF PAPER - ILLUMINANT C, ELREPHO TYPE

LAB MEANS COORDINATES AVG

CODE F E50 H51 MAJOR MINOR R. SDR VAR PR8PBRTY-- -TEST INSTRUMENT-—CONDITIONS

LI 76 78.52 75.33 -22.28 -7.03 .38 60 Z 0PACITY ( PAPER BACKING ). MARTIN SHEETS

L2 51 ft 92.93 91.04 -1 . 84 -l .00 1.25 60 F OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY— C( 10 ) NO TRAP

L564 93.10 89.6 0 -2.44 -2.32 2.65 60 Q OPACITY ( PAPER BACKING ). PHOTOVOLT

L446 0 93.58 92.60 -.48 .00 1.15 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY-C( 10

)

FILTER

LI 0 0 0 93.59 92.84 -.35 • 21 1.22 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, PMY-C( 10

)

FILTER

L575 0 93.66 92.93 -.24 .25 1.10 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY-C< 10

)

FILTER

L360 0 93.84 92.77 -.17 .02 1.39 60 F OPACITY ( PAPER BACKING), ZBISS ELREPHO. PMY-C( 10 ) NO TRAP

L4 84 6 93.85 93.29 .11 • 46 1.13 60 F OPACITY ( PAPER BACKING), ZEISS ELREPHO. FMY-C( 10 ) NO TRAP

L502 © 93.92 92.59 -.20 -.17 .84 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY-C( 10 ) FILTER

LI SO 0 94.16 92.42 -. 08 -.45 . 98 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO. FMY-C( 10

)

FILTER

L2 5 0T 0 94.19 92.88 . 1 9 -.07 .94 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, PMY-C( 10 ) FILTER

L242 0 94.20 93.20 . 36 .20 .59 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY-C( 10

)

FILTER

L233F 0 94.26 92.81 .21 -.16 1 . 04 60 F OPACITY ( PAPER BACKING ), ZEISS ELREPHO, PMY-C( 10 ) NO TRAP

LI 82E 0 94.29 92.60 . 1 3 -.36 .72 60J OPACITY ( PAPER BACKING ), ZBISS ELREPHO, FMY— C( 10 ) FILTER

L2 44 0 94.39 93.17 .51 .08 .92 60 F OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY-C( 10 ) NO TRAP

GMEANS : 93.99 92.84 1.00 95% ELLIPSE: .90 .78 WITH GAMMA - 31 DEGREES

31
PERCENT

92.2

92.6

93-0

93-4

93-

0PRC I TY , ELREPH0 TYPE, PRPER BROKING

SAMPLE E50 = 93.99 PERCENT SAMPLE H51 = 92.84 PERCENT — 1 1 1 1—

oo LD

Q_

51

CE

CO

+ . X . « NOT IN GRAND MEANS

ANALYSIS T60-3

O

O

O

o

o

o

o

o o o

o

1 r 93.41 1 r 93.8 94.2

SRMPLE E50

-I 1 93.0 94.6 95.0

PERCENT

32
REPORT NO. 52G TAPPI COLLABORATIVE REPERBNCE PROGRAM MARCH 1978 ANALYSIS T65-1 TABLE 1 DIRECTIONAL BLUE REPLECTANCE IN PERCENT

TAPPI STANDARD T452 OS-77, 'BRIGHTNESS 1 ; MARTIN SWEETS < ACBT A GE ) IS STANDARD FOR THIS ANALYSIS

SAMPLE PRINTING SAMPLE PRINTING TEST D. 8 LAB H31 84 GRAMS PER SQUARE METBR H53 74 GRAMS PER SQUARE METER

C0D8 MEAN DEV N.DBV SDR R. SDR MEAN DBV N. DBV SDR R. SDR VAR F LAB

LI 08 80.99 -.08 -.29 .04 .21 68.35 . 06 .26 .18 .78 65M 0 LI 08

LI 2 2 81 .06 -.00 -.00 .09 . 54 68.05 -.24 -1.05 .33 1 .42 65N 0 LI 22

LI 3 2 60.64 -.43 -1.62 .12 .70 67.92 -.37 -1.60 .17 .73 65N 0 LI 32

Li 58 81.21 .15 .56 .16 .92 68.44 .15 . 64 .18 .81 65N 0 LI 58

Li 72 81 .05 -.01 -.05 .19 1.10 68.19 -.10 -.45 .19 .82 65 A 0 LI 72

LI 90C 81 .31 .25 .94 .1 0 .59 68.21 -.08 -.34 .16 .68 65 A 6 LI 90C

L2i 0 M 81 .40 .34 1.28 .09 .55 68.50 .21 .92 .25 1.10 65M 0 L210M

L21 ON 81 .22 .16 • 61 .21 1.22 68.52 .23 1.03 .17 .73 65N 5 L210N

L2i i 80.34 -.73 -2.76 .11 . 63 68.52 .23 1.03 .12 .51 65N U L211

L22 5 80.95 -.11 -.43 .67 3.94 68.62 .33 1.46 .18 .77 6SN 0 L225

L2 4 3 80.87 -.19 -.72 .07 .42 68.11 -.18 -.78 .20 . 86 65A 0 L243

L2 5 9 80.62 -.44 -1 .67 .15 . 88 68.06 -.23 -1.00 .37 1 .62 65 M ti L259

L27 5 80.97 -.09 -.34 .12 . 69 68.26 - . 03 -.12 .16 .70 65M 0 L275

L288 81 .49 .42 1.61 .10 .59 68.22 -.07 -.29 .23 .99 65N 0 L288

L308 81 .37 .31 1.18 .17 .99 68.69 .40 1.74 .14 .59 65N 0 L308

L3i 5 80.81 -.25 -.95 .21 1.24 67.95 -.34 -1.49 .28 1 . 24 65N 0 L315

L3 1 7 80.60 -.46 -1.76 .09 . 55 68.05 -.24 -1.05 .12 .52 65M 0 L31 7 L502 81 .02 -. 04 -.15 .22 1.30 68.25 -.04 -.18 .22 .98 65A 0 L502

L52 3 81 . 35 .29 1 .09 .12 .71 68.32 .03 .15 .50 2.19 65N 0 L523

L543 81.20 .14 .52 .36 2.13 68. 50 .21 .92 .37 1.62 65M 0 L543

L565 81.11 .05 .19 .12 . 74 68.57 .28 1.24 .20 . 87 65 A 0 L565

L59 8 82.09 1.02 3.89 .54 3.21 68.65 .36 1.57 .59 2.57 65M ft L598

GR. MEAN - 81.06 PERCENT GRAND MEAN - 68.29 PERCBNT TEST DETERMINATIONS - 8 SD MEANS - .26 PBRCENT SD OF MBANS • .23 PERCENT 20 LABS IN GRAND MEANS AVERAGE SDR - .17 PERCBNT AVERAGE SDR - .23 PERCENT

Li 05 81 .36 .30 1.13 .05 .31 67.64 -.65 -2 • 86 .18 . 77 65T LI 05

Li 761 82.04 .97 3.70 .15 . 89 68.09 -.20 -.89 .21 .92 651 LI 761

L21 3 81 .39 .32 1.23 .04 .21 67.96 -.33 -1 .44 .14 .62 65T L213

L2 2 3 81 .25 .19 .71 .05 . 32 67.94 -.35 -1.55 .09 .40 65G L223

L2 2 4 82.52 1.46 5.55 .09 . 53 68.62 . 33 1 .46 .13 .56 65H L224

L232 81 .94 .87 3.32 .18 1.05 68. 87 .58 2.56 .23 1.01 65P L232

L241 82.39 1.32 5.02 1 .03 6.11 71 .07 2.78 12.19 .15 .65 651 L24

1

L249 81 .02 -.04 -.15 .05 .27 68.96 .67 2.94 .09 .40 65P L24 9 L2 5 6 81 .26 .20 .75 .09 . 54 67.69 -.60 -2.64 .33 1 .45 65H L256

L260 81 .40 .34 1.28 .13 .78 70.05 1.76 7.70 .20 . 87 65P L260

L2 7 7 80 .00 -1.06 -4.04 .00 .00 68.00 -.29 -1.27 .00 .00 65P L277

L2 7 8 84.30 3.24 1 2.28 .19 1.10 71.85 3.56 15.58 .17 .74 65P L278

L3 01 80.99 -.08 -.29 .08 . 49 68.39 .10 .42 .20 . 89 65G L301

L3i 2 81 .56 .50 1.89 .32 1.90 70.56 2.27 9.94 .42 1.83 65P L31 2 L3 21 84.31 3.25 12.33 .37 2.20 80.50 12.21 53.44 .38 1 .65 65P L321

L3 2 8 81 . 86 . 80 3.03 .13 . 77 69.64 1 . 35 5.90 .31 1 .34 65P L328

L339 79.89 -1.18 -4.46 .17 1 . 02 69.59 1 . 30 5.68 .31 1 . 37 65P L339

L3 8 8 80.62 -.44 -1.67 .23 1.37 68.19 -.10 -.45 .26 1.13 65P L388

L562 84.47 3.41 12.95 .38 2. 28 73. 36 5.07 22.20 .23 1.02 65P L562

L564 80.62 -.14 -1.67 .52 3.07 69.00 .71 3.10 .00 .00 65P L564

L587 81.26 .20 .75 .05 . 31 67.70 -.59 -2.59 .14 .62 651 L587

L59

1

80.26 -.81 -3.06 .07 . 43 66.94 -1.35 -5.90 .11 .47 65H L591

L61 7 82.44 1.37 5.21 .32 1 . 90 69.56 1.27 5.57 .73 3.19 65P L617 TOTAL NUMBER OF LABORATORIES REPORTING * 45

Best Values: H31 81. 1 + 0.,4 percent

H53 68.,3 + 0.,3 percent

The following laboratories were omitted from the grand means because of extreme test results: 211,

598.

33
V

REP9BT NO. 520 TAPP I COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T65-1 TABLE 2 DIRECTIONAL BLUB REFLECTANCE IN PBRCBNT

TAPPI STANDARD T452 OS-77, 'BRIGHTNESS 1 ; MARTIN SWBBTS ( ACBT A GE > IS STANDARD POR THIS ANALYSIS

LAB MEANS COORDINATES AVG

C0DB F H31 H53 MAJOR MINOR R. SDR VAR PROPERTY---TBST INSTRUMENT-—CONDITIONS

L339 79.69 69.59 -.11 1.75 1.20 65P BLUB RBFLBCTANCB ( DIRECTIONAL), PHOTOVOLT

L277 80.00 68.00 -1.01 .43 .00 65 P BLUE REFLECTANCE C DIRECTIONAL), PHOTOVOLT

L59

1

30.26 66.94 -1.47 -.55 .45 65H BLUB RBFLBCTANCB ( DIRECTIONAL). HtJNTER

L2 1

1

* @0.3 4 68.52 -.42 .64 .57 65 N BLUB RBFLBCTANCB < DIRECTIONAL ), DIANO/MARTIN \SWBETS. S-4

L31 7 0 80.60 60.05 -.51 .10 .54 65M BLUE REFLECTANCB ( DIRBCTIONAL), MARTIN SWBETS ( GE ). S-i

L3 8 8 80.62 68. 19 -.41 .19 1.25 65P BLUE RBFLECT ANCE ( DIRBCTIONAL ), PHOTOVOLT

L259 0 80.62 68.06 -.49 .09 1.25 65M BLUB REFLECTANCE ( DIRBCTIONAL). MARTIN SWBETS ( GE ). s-i L564 80.62 69.00 .10 .83 1.53 65 P BLUB REFLECTANCE < DIRECTIONAL ), PHOTOVOLT U 3 2 0 80.64 67.92 -.56 -.02 .72 65N BLUB RBFLBCTANCB ( DIRECTIONAL ), DIANO/MARTIN SWEBTS, S-4

L31 5 0 80.81 67.95 -.41 -.11 1.24 65N BLUE RBFLBCTANCB ( DIRBCTIONAL). DIAN 1 /MARTIN SWEETS, S- 4

L243 0 80.87 68.11 -.26 -.02 .64 65 A BLUB REFLECTANCB ( DIRECTIONAL ). MARTIN SWBBTS ( ACBT

)

• S* 2 L22 5 0 80.95 68. 62 .12 .33 2.36 65N BLUE RBPLBCTANCE ( DIRBCTIONAL), DIANO/MARTIN SWEBTS, S-4 L275 0 80.97 68.26 -.05 .03 . 69 65 M BLUE RBFLBCTANCB ( DIRBCTIONAL ), MARTIN SWBBTS (GB), S-i

Li 08 0 80.99 60.35 -.02 .09 .49 65M BLUB RBFLECTANCB ( DIRBCTIONAL), MARTIN SWBBTS < GE ), s-i L301 80.99 68.39 .00 .12 .69 65G BLUB RBFLBCTANCB ( DIRBCTIONAL), GARDNBR

L249 81 .02 68.96 . 39 .55 .34 65P BLUB RBFLBCTANCB ( DIRECTIONAL), PHOTOVOLT

L502 0 81 .02 68.25 -. 06 -.01 1.14 65 A BLUE RBFLECTANCB ( DIRECTIONAL ), MARTIN SWBETS ( ACBT).S-2

Li 72 0 81 .05 60.19 -.07 -.07 .96 65 A BLUB RBFLBCTANCB ( DIRECTIONAL), MARTIN SWBBTS ( ACBT) • S- 2 Li 2 2 0 81.06 68.05 -.15 -.19 .98 65N BLUB REFLECTANCB ( DIRBCTIONAL ), DIANO/MARTIN SWEETS. S-4 L565 0 81 .11 60.57 .22 .19 .80 65 A BLUE REFLECTANCB ( DIRBCTIONAL). MARTIN SWBETS ( ACBT), S- 2

L543 0 81.20 68.50 .24 .08 1.87 65M BLUE RBFLBCTANCB ( DIRECTIONAL), MARTIN SWBBTS ( GE ). S-i

Li 58 0 81.21 68.44 .21 .02 .86 65 N BLUE REFLECTANCB ( DIRECTIONAL), DIANO/MARTIN SWEETS. S-4 L210N 0 81.22 68.52 .27 .08 .97 65N BLUE RBFLBCTANCB ( DIRBCTIONAL ). DIANO/MARTIN SWBETS, S-4 L223 81.25 67. 94 -.07 -.39 .36 650 BLUB RBPLECTANCB ( DIRBCTIONAL ), GARDNBR

L587 81.26 67.70 -.21 -. 59 . 46 651 BLUB REPLBCTANCE < DIRECTIONAL ), HDNTBR D25D2A

L256 81 .26 67.69 -.22 -.60 1.00 65 H BLUE REFLECTANCE ( DIRECTIONAL), HUNTER

Li 9 DC 0 81.31 68.21 .15 -.22 .63 65 A BLUB RBFLBCTANCB ( DIRECTIONAL), MARTIN SWBETS (ACBT).S-2 L523 0 81 .35 68. 32 .25 -.15 1.45 65N BLUB REFLECTANCE ( DIRBCTIONAL), DIANO/MARTIN SWBETS, S-4

Li 05 81.36 67. 64 -.17 -.70 .54 65 T BLUB REFLECTANCB ( DIRBCTIONAL). HUNTER D2SD2M

L3O0 0 81.37 68.69 .49 .12 .79 65 N BLUE REFLECTANCB ( DIRECTIONAL ), DIANO/MARTIN SWEBTS. S-4

L21 3 81 .39 67.96 .05 -.46 .41 65T BLUB RBPLECTANCB ( DIRECTIONAL ), HUNTER D2SD2M

L2i OM 0 81.40 68. 50 .39 -.05 .82 65M BLUB RBFLBCTANCB < DIRBCTIONAL). MARTIN SWBBTS (GE). s-i L260 81.40 70.05 1.36 1.17 .83 65 P BLUB REFLECTANCE ( DIRECTIONAL ). PHOTOVOLT

L288 0 81 .49 68. 22 .29 -.32 .79 65 N BLUE RBPLBCTANCE ( DIRECTIONAL ), DIANO/MARTIN SWBBTS, S-4

L31 2 81.56 70.56 1.80 1.47 1 .86 65 P BLUB REFLECTANCE ( DIRBCTIONAL ), PHOTOVOLT

L328 81 .86 69.64 1.46 .56 1.06 65 P BLUE REFLECTANCB ( DIRECTIONAL ). PHOTOVOLT

L232 81 .94 60.87 1.05 -.09 1.03 65 P BLUE RBFLBCTANCB ( DIRBCTIONAL ), PHOTOVOLT

Li 761 82.04 60.09 . 64 -.77 .91 651 BLUB REFLBCT ANCB ( DIRBCTIONAL ), HUNTER D25D2A

L59 8 * 82.09 68. 65 1.02 -. 36 2.89 65k BLUE REFLECTANCB < DIRBCTIONAL), MARTIN SWBETS (GE). S-l L241 82.39 71.07 2.77 1.35 3. 38 651 BLUB RBPLBCTANCE ( DIRBCTIONAL), HUNTBR D25D2A

L61 7 82.44 69. 56 1.87 .14 2.54 65 P BLUB RBFLECTANCE < DIRECTIONAL). PHOTOVOLT

L2 2 4 82.52 68.62 1.35 -.65 .54 65H BLUE RBPLECTANCB ( DIRECTIONAL ), HUNTBR

L278 84.30 71.85 4.75 .77 .92 65 P BLUB REFLECTANCE < DIRECTIONAL ), PHOTOVOLT

L32 i 84.31 80.50 10.14 7.53 1.93 65 P BLUB RBFLBCTANCB ( DIRBCTIONAL ). PHOTOVOLT

L562 84.47 73.36 5. 83 1.85 1.65 65 P BLUE RBFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

GME AN3

:

81 .06 68.29 1.00 95% ELLIPSE: . 86 .41 WITH GAMMA - 38 DBGRSES

34
PERCENT

BLUE REFLECTRNCE , DIRECTI0NRL

SAMPLE H31 = 81.06 PERCENT SAMPLE H53 = 68-29 PERCENT

PERCENT

35
REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T65-2 TABLE 1 DIFFUSE BLUE REFLECTANCE IN PERCENT (GLOSS TRAP)

TAPPI SUGGESTED METHOD TS25 SU-72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D.«' 8 LAB H31 64 GRAMS PER SQUARE METBR H53 74 GRAMS PER SQUARE MB TER CODB MBAN DEV N. DEV SDR R. SDR MEAN DBV N. DBV SDR R. SDR VAR F LAB

LI 00 81 .68 >.03 -.04 .06 1.02 67.76 -.16 -.18 .18 .87 65F 0 LI 00

LI 21 81 .74 .04 .05 .05 .81 67.99 .07 .08 .21 1.04 65K 0 LI 21

LI 3 6 82.18 .48 .59 .10 1.57 63.24 .32 .35 .18 .88 65F 0 LI 36

LI 50 80.66 -1.05 -1.29 .05 .79 65.89 -2.03 -2.21 .49 2.42 65Q 6 LI 50

LI 70 81.37 -.33 -.41 .05 .73 67.89 -.04 -.04 .10 .49 65B 0 LI 70

LI 82 81.61 -.09 -.11 .05 .74 67. 80 -.12 -.13 .24 1.16 65F 0 LI 82

L21 OK 82.65 .95 1.17 .06 .93 69.81 1 . 89 2.05 .23 1.14 651 0 L210K

L236 81.31 -.40 -.49 .05 .73 67.33 -.59 -.64 .16 .79 6SE e L236

L242 81.18 -.52 -.64 .09 1.47 67.27 -.65 -.71 .18 . 88 65F o L242 L250T 81 .66 -.04 -.05 .05 .74 68.34 .42 .46 .16 .80 65P 0 L250T

L280 81 .64 -.07 -.08 .15 2.32 68.12 .19 .21 .29 1.40 65Q 0 L280

L32 5 81.82 .11 .14 .09 1.41 67.93 .00 .00 .15 .72 65F a L325

L349 83.93 2.23 2.75 .05 .84 69.56 1.63 1.77 .19 .93 65K • L349

L362 80.56 -1.15 -1.42 .05 .73 67.09 -.83 -.90 .15 .’73 65K 0 L362

L445 81 .39 -.32 -.39 .02 .28 67.64 -.29 -.31 .18 .89 65F 0 L446 L502A 80.77 -.93 -1.15 .09 1.34 66.92 -1.00 -1.09 .26 1 .30 65B 0 LS02A

L573 82.76 1.06 1.30 .05 . 82 68.98 1.05 1.14 .15 .74 65F 0 L573

L575 81 .78 .07 .09 .04 . 56 68.07 .15 .16 .16 .76 65F 0 L575

GR. MEAN - 81.71 PERCENT GRAND MEAN * 67.92 PERCBNT TBST DETERMINATIONS - 8 SD MEANS - .81 PERCENT SD 8F MEANS • .92 PERCBNT 18 LABS IN GRAND MEANS AVERAGB SDR • .06 PBRCENT AVERAGE SDR - .20 PERCBNT

L289 82.70 .99 1.23 .05 . 84 68.82 .90 .98 .13 .63 656 L289 L502B 81 . 53 -.17 -.21 .04 .64 67.68 -.25 -.27 .35 1.72 65L L502B

L5 02C 81 .20 -.50 -.62 .01 .17 67.06 -.87 -.94 .21 1.05 65Y L502C

TOTAL NUMBER OF LABORATORIES REPORTING 21

Best Values: H31

H53 81.5 + 1.1 percent

67.9 + 1.7 percent

36
REPORT NO. 52G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T6S-2 TABLE 2 DIFFUSE BLUE REPLBCTANCE IN PERCENT (GLOSS TRAP)

TAPPI SUGGESTED METHOD T525 SU-72. BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DSG. OBSERVATION)

LAB MEANS COORDINATES AVG

CODE F H31 H53 MAJOR MINOR R. SDR VAR PROPERTY---TBST INSTRUMENT-—C0NDITI0NS

L362 0 80.56 67.09 -1 . 38 .32 .73 65K DIFFUSE REFLECTANCB. ELREPH0

,

GL.TRAP. MGO ( ZEISS ) BASE

LI 50 0 80.66 65.89 -2.22 -.54 1 .61 650 DIFFUSE REFLECTANCE, BLREPH0, GL. TRAP, ZEISS ABSOLUTE BASE L502A 0 80.77 66.9 2 -1 . 37 .05 1 .32 65 B DIFFUSE REPLBCTANCE, ELREPH0

,

GL.TRAP. NBS ABS0LUTE BASE

L2 4 2 0 81.18 67.27 -.84 -.03 1.17 65F DIFFUSB REFLBCTANCB, ELREPH0

,

GL.TRAP, NRC-PTB ABSOLUTE BASE

L502C oo

<v o 67. 06 -.98 -.19 .61 65 Y DIFFUSE RBFLECTANCB, ELREPH0. GL.TRAP, NBS AB30LUTB, FMZC

L236 0 81 .31 67.33 -.71 -.09 .76 65 K DIFFUSB REFLECTANCE, ELREPH0, GL.TRAP. MGO ( ZEISS ) BASE

LI 7 0 0 81 .37 67.89 -. 24 .23 .61 65 B DIFFUSE REFLECTANCE. ELREPH0

,

GL.TRAP. NBS ABSOLUTE BASE

L446 0 81 .39 67.64 -. 42 .05 . 58 65 F DIFFUSE RBFLECTANCB. ELREPH0

,

GL.TRAP, NRC-PTB ABSOLUTE BASE

L502B 81 .53 67.68 -.30 -.03 1.18 65L DIFFUSE REFLECTANCE. ELREPH0

,

GL.TRAP. NBS ABSOLUTE, FMZA

LI 82 0 81.61 67 .80 -.15 -.01 .95 65 F DIFFUSE REFLECTANCE , BLRBPH0, GL.TRAP. NRC-PTB ABSOLUTE BASE

L2 8 0 0 81 .64 68.12 .10 .18 1.86 650 DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP, ZEISS ABSOLUTE BASE L250T 0 81 .66 68.34 .29 .31 .77 65F DIFFUSB REPLECTANCB, ELREPH0. GL.TRAP, NRC-PTB ABSOLUTE BASE

LI 0 0 0 81 .68 67.76 -.14 -.08 .94 65F DIFFUSB REFLBCTANCB. ELREPH0

,

GL.TRAP, NRC-PTB ABSOLUTE BASE

Li 21 0 81 .74 67.99 • 06 .02 .93 65K DIFFUSE RBFLECTANCB, ELREPH0. GL.TRAP, MGO ( ZEISS ) BASE

L575 0 81.78 68.07 • 16 .04 .66 65F DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP, NRC-PTB ABSOLUTE BASE

L325 0 81.82 67.93 . 07 -.08 1 .07 65 F DIFFUSE RBFLECTANCB. ELREPH0

,

GL.TRAP, NRC-PTB ABSOLUTE BASE

Li 36 0 82.18 68.24 .55 -.15 1.23 65F DIFFUSE REFLECTANCE, ELREPH0. GL.TRAP, NRC-PTB ABSOLUTE BASB

L21 OK 0 82.65 69.81 2. 05 .52 1.04 65K DIFFUSE REFLECTANCE, ELREPH0

,

GL.TRAP, MGO ( ZEISS ) BASE

L289 82.70 68.82 1.33 -.16 .73 650 DIFFUSE REFLECTANCE. ELREPH0. GL.TRAP, SPECIFIC CALIBRATION

L573 0 62.76 68.98 1.49 -.11 .78 65F DIFFUSE REPLECTANCE, ELREPH0

,

GL.TRAP, NRC-PTB ABSOLUTE BASE

L349 * 83.93 69.56 2.69 -.61 .88 65K DIFFUSE REFLECTANCE, ELREPH0

.

GL.TRAP, MGO ( ZEISS ) BASE

GMEANS

:

81.71 67.92 1.00 95% :ELLIPSE: 3.32 .76 WITH GAMMA - 49 DEGREES

37
PERCENT

65-0

66-0

67.0

68.0

BLUE REFLECTANCE, DIFFUSE, NITH TRAP

SAMPLE H31 = 81 .7 PERCENT

I I I I 1 L SAMPLE H53 = 67.9i i i PERCENT

1 L.

CD +.X.# NOT IN GRAND MEANS

in

3= ANALYSIS T65-2

CL

CO

o nr

©

©

©

©

+

*

©

1 r 78.5

©

©

©

SAMPLE H 3

1

79.5 80.5 81.5 82-5

PERCENT

83.5 84-5

38
REPORT NO. 52G TAPPI C0LLAB0RATI VE REFERENCE PROGRAM MARCH 1978 ANALYSIS T65-3 TABLE 1 DIFFUSE BLUE RBFLECTANCE IN PERCENT (NO GLOSS TRAP)

TAPPI SUGGESTED METHOD T525 SU-72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DBG. OBSERVATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 8 LAB H3I 84 GRAMS PBR SQUARE METER H53 74 GRAMS PER SQUARE METER

CODE MEAN DEV N. DEV SDR R. SDR MEAN D5V N. DEV SDR R. SDR VAR F LAB

LI 1 5 80.40 -1.20 -2.03 • 12 1.70 67.61 -1.28 -1 .90 .18 .95 65E 6 LI 1 5 LI 52 81 .55 -.04 -.07 .08 1 • 08 68.63 -.26 -.38 .19 1 .01 65E 0 LI 52

LI 57 81 .52 -.08 -.14 .05 .74 68.83 -.06 -.09 .14 .74 65E 0 LI 57

Li 6

1

81 .69 .09 .16 .08 1.13 69.35 .47 .69 .15 .78 65E 0 LI 61

Li 73 A 62.00 .40 .68 .09 1 . 32 69.32 .43 .64 • 22 1.14 65E 0 L173A

LI 94 81 .54 -.06 -.10 .04 . 50 68.87 -.02 -.03 • 22 1.14 65E 0 LI 94 L238A 81 .90 .30 .51 .08 1 • 08 69.20 .32 .47 .15 .76 65E 0 L238A

L244 82.42 .83 1.39 • 04 .52 69.15 • 26 .39 .20 1.07 65D 0 L244

L251 81.21 -.39 -.66 .09 1.32 68.46 -.43 -.64 .09 . 46 65E 0 L251 L255 82.67 1.07 1.80 .05 • 68 69.48 . 59 .88 .23 1.19 65D 0 L255

L350 81 .09 -.51 -.85 .05 .74 68.23 -.66 - .98 .14 .74 65E 0 L360

L38 4 81 .34 -.26 -.44 .05 .74 68.52 -.36 -.54 .09 .47 65S 0 L38*

L464 82.30 .70 1.19 • 16 2. 29 70.51 1 .62 2.41 .55 2.88 65E 0 L4 84 L502D 81.33 -.27 -.45 .05 . 66 68.33 -.56 -.83 .18 .94 65 W 0 L502D

L56 5 81 .01 -.59 -.99 .04 .51 68. 82 -.06 -.09 • 14 .73 65W 0 L565

GR. MEAN • 81.60 PERCBNT GRAND MEAN - 68.89 PERCENT TEST DETERMINATIONS - 8 SD MEANS - . 59 PERCENT SD OF MBANS - .67 PERCBNT 15 LABS IN GRAND MBANS AVERAGE SDR - .07 PERCENT AVERAGE SDR - .19 PERCENT

TOTAL NUMBER OF LABORATORIES REPORTING - 15

Best Values: H31 81.5 +

H53 68.7 +

0.9 percent

1.0 percent

REPORT NO. S2G TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T65-3 TABLE 2 DIFFUSE BLUE REFLECTANCE IN PERCENT (NO GLOSS TRAP)

TAPPI SUGGESTED METHOD TS25 SU-72. BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

LAB MEANS C00RDINA TES AVG

C0D 3 F H31 H53 MAJOR MINOR R. SDR VAR PROPERTY- - - TBST INSTRUMENT- --CONDITIONS

LI 15 0 80.40 67.61 -1 . 75 .08 1.32 65 E DIFFUSE REFLECTANCE, ELREPH0, NO TRAP, MGO ( ZEISS

)

BASE

L565 0 81 .01 68. 82 -.43 .40 • 62 65 W DIFFUSE REFLECTANCE, ELREPH0, NO TRAP, NBS MGO BASE

L350 0 81 .09 68.23 -. 83 -.05 .74 65B DIFFUSE REPLECTANCB, ELREPH0, NO TRAP, MGO ( ZEISS

)

BASE

L251 0 81.21 68. 46 -.58 • 02 .90 65E DIFFUSE REFLECTANCE, FLREPH0. NO TRAP, MGO ( ZEISS ) BASE L502D 0 81.33 68.33 -.60 -.16 .80 65 W DIFFUSE REFLECTANCE, BLREPH0, NO TRAP, NBS MGO BASE

L384 0 81 .34 68.52 -.45 -.04 .60 65 S DIFFUSE REPLECTANCB, BLREPH0

,

NO TRAP, A BSOL UTE- UNKNOWN

Li 57 0 81 .52 68.83 -.10 .02 . 74 65 E DIFFUSE REFLECTANCE, ELREPH0, NO TRAP, MGO ( ZEISS ) BASE

LI 9 4 0 81 . 54 68.87 -.05 .03 .82 65E DIFFUSE REFLECTANCE, ELREPH0, NO TRAP, MGO ( ZEISS ) BASE

LI 52 0 81 .55 68.63 -. 22 -.13 1 .04 65 B DIFFUSE REFLECTANCE, ELREPH0, NO TRAP, MGO ( ZEISS ) BASE

LI 61 0 81.69 69.35 • 41 .23 .95 65E DIFFUSE REFLECTANCE, ELREPH0, NO TRAP, MGO (ZEISS ) BASE L238A 0 81.90 69.20 • 44 -.02 .92 65 E DIFFUSE REPLECTANCB, ELREPH0

,

NO TRAP, MGO ( ZEISS ) BASE

LI 73

A

0 82.00 69.32 . 59 -.03 1.23 65E DIFFUSE REFLECTANCE, ELREPH0

,

NO TRAP, MGO ( ZEISS ) BASE

L484 0 82.30 70.51 1 . 69 .53 2.58 65 E DIFFUSE REFLECTANCB, ELREPH0, NO TRAP, MGO ( ZEISS ) BASE

L244 0 82.42 69.1 5 .74 -.45 . 79 65 D DIFFUSB REFLECTANCE, BLREPH0

,

NO TRAP, NRC- PTB ABSOLUTE

L255 0 82.67 69.48 1.15 -.42 .93 65 D DIFFUSE REFLECTANCB, ELREP30

,

NO TRAP, NRC- PTB ABSOLUTE

GMEANS 81.60 68.89 1 .00 95 % :ELLIPSE: 2.46 .74 WITH GAMMA 49 DEGREES

39
PERCENT

67.0

68.0

69.0

70.

BLUE REFLECTANCE, DIFFUSE, N0 TRAP

SAMPLE H31 = 81 .6 PERCENT

1 I I L SAMPLE H53 = 68.9 PERCENTL I 1 I

o

oo

0-) + , X . # N0T IN GRAND MEANS

LO

ANALYSIS T65-3

Q_

CE

CO

0

o

o o

o o

o

o

0

o

0

0

o

SAMPLE H31

79.5 80.5 81.5

PERCENT

82.5 83.5

40
REPORT NO. 52G TAPPI caLLABeRATI VE REFERENCE PROGRAM MARCH 1978 ANALYSIS T75-1 TABLE 1 SPECULAR GLasS AT 75 DBOREES. IN GL8SS UNITS

TAPPI STANDARD T480 OS-72. SPBCULAR GLOSS OF PAPER AND PAPERBOARD AT 7S DSGRBES

LAB SAMPLEJ23 PRINTING

116 GRAJtS PER SQUARE MBTBR

SAMPLE

HS5 PRINTING91 GRAMS PER SQUARE MB TER TEST D. '• 10 CODS MEAN DBV N. DEV SDR R. SDR MEAN DBV N. DBV SDR R. SDR VAR F LAB

LI 08 67.24 .63 .40 .64 .65 55.91 .28 .14 2.86 1.79 75H 5 LI 08

LI 21 66.97 .36 .23 .62 .62 54.36 -1.27 -.65 1.23 .77 75H 0 LI 21

LI 22 65.98 -.63 -.40 .62 .63 55.32 -.31 -.16 1 .64 1 .03 75H 0 LI 22

LI 2 8 63.90 -2.71 -1.72 1.52 1.54 52.80 -2.83 -1.44 1.69 1.06 75G 0 LI 28

LI BA 65.36 -1.25 -.79 .92 .93 53.01 •2.62 -1.33 1.97 1.23 75H 0 LI 34

LI 36 68.94 2.33 1.48 .66 .67 57.07 1.44 .73 1 .80 1.13 75G 6 LI 36

LI 49 66.60 -.01 -.00 .84 .65 57.50 1.87 .95 1 .90 1.19 75G 0 LI 49

LI 53 68.15 1.54 .96 1.49 1.51 59.25 3.62 1.84 1.38 .86 75G 0 LI 53

LI 6 2 70.59 3.98 2.53 .36 .36 61.77 6.14 3.12 1.31 .82 75G * LI 62

LI 66 68.00 1.39 .69 .82 . 83 60.30 4.67 2.37 .82 .52 75B • LI 66

LI 72 63.92 -2.69 -t.71 .62 .63 51 .58 -4.05 -2.06 1.19 .75 75H 0 LI 72

LI 73

A

66.69 .08 ,05 .82 . 83 55.60 -.03 -.02 1.41 . 88 75G 0 L173A

LI 82 66.36 -.25 -.16 1 .30 1.31 56.17 .54 .27 1.12 .70 75H 0 LI 82

LI 90C 66.50 -.11 -.07 .71 .72 55.00 -.63 -.32 1.56 .98 75G 0 L190C

LI 90 R 65.62 -.99 -.63 .61 .61 57.41 1.78 .90 1.82 1.14 75G 0 LI 90R

L206 65.95 -.66 • ,42 1.14 1.15 55.04 -.59 -.30 1.51 .95 75H 0 L2C6

L210 70.32 3.71 2,36 .99 1.00 57.63 2.00 1.02 1.67 1 .05 75H • L210

L21 1 67.33 .72 .6 .87 .88 56.40 .77 .39 1.69 1 .06 75H 0 L211

L21 3 67.08 .47 ,30 1.14 1.16 55.17 -.46 -.23 2.47 1.55 75H 0 L213

L22 3 67.25 .64 ,41 .89 .90 55.96 .35 .18 1 . 82 1.14 75H 0 L223

L230 63.75 -2. 86 -1 .62 1.01 1.02 53.36 -2.27 -1.15 1.37 . 86 75H 0 L230

L2 4 3 67.80 1.19 ,76 .79 .60 56.10 .47 .24 2.33 1.46 75 B 0 L243

L251 69.30 2.69 1.71 .82 .83 56.55 .92 .47 1.50 .94 75G 0 L251

L2 5 5 66.60 -.01 -.00 .64 .85 56.40 .77 .39 .97 .61 75H 0 L255

L2 5 6 66.80 .19 .12 1.10 1.12 55.14 -.49 -. 2S 1.47 .92 75H 0 L256

L2 59 67.53 .92 ,59 1 .06 1.09 57.35 1.72 .87 2.47 1.55 75H 0 L259

L262 67.80 1.19 .76 .79 .80 59.30 3. 67 1 . 86 1.16 .73 75K 0 L262 L277A 66.59 -.02 -.01 1 .08 1.09 55. 66 .03 .01 1.45 .91 75H 0 L277A

L277B 66.78 .17 .11 1.35 1.37 56.36 .73 .37 1.43 .90 75H 0 L2 77B

L27 8 66.74 .13 ,09 1.25 1.26 56.20 .57 .29 1.88 1.18 75G 0 L278

L27 9 65.00 -1.61 -l .02 1.63 i.ts 54.40 -1.23 -.63 2.41 1.51 75 G 0 L2 79 L291 63.93 -2.68 -1.70 1.03 1.04 52.36 -3.27 -1.66 2.02 1.27 75H 0 L291

L301 66.16 -.45 — , 26 . 88 .89 54.63 -1 .00 -.51 .48 .30 75H 0 L301

L31 5 63.60 -3.01 -1 ,91 1 .17 1.19 54.90 -.73 -.37 1.52 .95 75G 6 L315

L31 7 67.71 1.10 ,70 .80 .81 55.36 -.27 -.14 1.53 .96 75 H 0 L31 7

L32

1

66.30 -.31 -.19 1 .06 1.07 54.90 -.73 -.37 1.10 . 69 75G 0 L321

L32 3 65.83 -.78 -.49 1.09 1.10 54.50 -1.13 -.58 1 .71 1 .07 75H 0 L323

L328 65.41 -1.20 -.76 .74 .75 60.57 4.94 2.51 2.49 1.56 75H X L328

L3 3 9 55.89 -10.72 -6,82 3.04 3.08 50.76 -4.89 -2.49 1.12 .70 75P • L339

L3A9 65.42 -1.19 — .75 1.11 1.12 61.55 5.92 3.01 1.68 1 .05 75H X L349

L388 58.1 0 -8.51 -5,41 1.63 1.65 48.80 -6.83 -3.47 .71 .45 7 5P * L388

L396 65. 85 -.76 -.48 .67 .68 55.80 .17 .09 1 .30 .81 75G 0 L396

L4 56 66.46 -.15 -.09 .50 .51 54.41 -1.22 -.62 1.14 .71 75H 0 L456

L4 8 3 65.04 -1.57 -1.00 1 .20 1.21 54.05 -1.58 -.80 1 .30 .82 75H 0 L483 L502G 66.93 .32 .21 1.36 1.38 54. 80 -.83 -.42 .93 .58 75G 0 L502G L502H 67.68 1.08 .69 .77 .73 56.48 .85 .43 1.60 1.00 75H 0 L502H

L564 59.60 -7.01 -4,46 1 ,3S 1.37 49.20 -6.43 -3.27 1.69 1 .06 75P X L564

L573 64.00 -2.61 -1.66 1.15 1.17 52.70 -2.93 -1.49 2.31 1.45 75G 0 L573

L574 66.60 -.01 -,00 .97 .98 54.50 -1.13 -. 58 1.78 1.12 75G 0 L574

L583 65.68 -.93 -.59 1 .24 1.26 55.91 .28 .14 .84 .53 75H 0 L583

L587 68.10 1. 49 .95 1.10 1.11 55.20 -.43 -.22 .92 .58 75H 0 L587

L592 67.15 .54 .35 1.30 1.32 54.12 -1.51 -.77 2.23 1.40 75H 0 L592

GR. M B AN • 66.61 GLOSS UNITS grand mean - 55.63 GLOSS UNITS TEST DETERMINATIONS - 10 SD MEANS • 1.57 GLOSS UNITS AVBRAGE SDR

SD flF MEANS •

• .99 GLOSS UNITS

1.97 GLOSS UNITS AVBRAGE SDR • 1.60

47 LABS IN GLOSS UNITSGRAND MEANS

L250 65.50 -1.11 -.70 .82 ,83 52.85 -2.7 8 -1.41 .58 .36 75Q L250 L288 67.02 .41 .26 • 68 ,69 55.08 -.55 -.28 1 .64 1.03 751 L288 T8TAL NUMBER OF LABeRAT8RIES REPaRTING • 54

Best Values: J23 67+3 gloss units

H55 56+3 gloss units

The following laboratories were omitted from the grand means because of extreme test results: 339

388.

41
REPORT N6. S2G klABCB 1978

TAPP 1

TAPPI COLLABORATIVE REFERENCE ANALYSIS T75-1 TABLE SPECULAR GLOSS AT 75 DBGREES. IN STANDARD T480 OS-72. SPBCULAR GLOSS OF PAPERPROGRAM

2GLOSS UNITS

AND PAPERBOARD AT 75 DBGREES

LAB MEANS COORDINATES AVG

CODE F J23 H55 MAJOR MINOR R. SDR VAB PROPBRTY---TBST INSTRUMENT-—CONDITIONS

L339 ft 55.89 50.74 -10.32 5.68 1.89 75 P SPBCULAB GL0SS ( 75 DBGRBB ' • PHOTOVOLT

L388 ft 58.10 48. 80 -10. 56 2.75 1.05 75P SPBCULAR GL0SS ( 75 DBGRBE ' • PHOTOVOLT

L564 X 59.60 49.20 -9.34 1.79 1.21 75 P SPECULAR GL0SS ( 75 DBGRBE " * PHOTOVOLT

L3I5 0 63.60 54.90 -2. 38 1.98 1.07 75G SPECULAR GL0SS ( 75 DBGRBE GARDNER

L230 0 63.75 53.3 6 -3.53 .94 .94 75 H SPECULAR GL0SS ( 75 DEGREE " i HUNTER

LI 2 8 0 63.90 52.80 -3.69 .48 1.30 75 G SPECULAR GL0SS ( 75 DEGREE ' * GARDNBS

Li 72 0 63.92 51 . 58 -4.85 -.26 .69 75 H SPECULAR GL0SS ( 75 DBGRBE *

«

HUNTER

L291 0 63.93 52.36 -4.22 .20 1.15 75H SPBCULAR GL0SS < 75 DBGRBE * • HUNTER

L573 0 64.00 52.70 -3.91 .34 1.31 75 G SPBCULAR GL0SS < 75 DBGREE * * GARDNER

L279 0 65.00 54.40 -1.95 .55 1.58 75G SPBCULAR GL0SS ( 75 DBGREB GARDNBR

L4 83 0 65.04 54.05 -2.20 .31 1.01 75 H SPECULAR GL0SS < 75 DEGREE * * HUNTER

LI 3 4 0 65.36 53.01 -2.85 -.56 1.08 75H SPECULAR GL0SS ( 75 DBGREB ' & HUNTBR

L3 2 8 X 65.41 60.57 3.25 3.90 1.15 75 H SPBCULAR GL0SS <75 DBGREE " i HUNTER

L349 X 65.42 61.55 4.04 4.48 1.09 75H SPBCULAR GL0SS < 75 DBGRBE " • HUNTER

L2 50 65.50 52.85 -2. 89 -.77 .60 750 SPECULAR GL0SS < 75 DBGREE ' i PHOTOVOLT. 20 C. 655 RH

LI 90S 0 65.62 57.41 . 84 1.85 .88 75G SPECULAR GL0SS < 75 DEGREE " * GARDNER

L583 0 65.68 55.91 -.33 .91 .89 75 H SPECULAR GLOSS (75 DBGREE t B HUNTER

L323 0 65.83 54.50 -1.37 -.05 1.09 75H SPBCULAR GL0SS < 75 DBGREE ' B HUNTER

L396 0 65.85 55.80 -.32 .71 .74 75G SPECULAR GLOSS < 75 DBGREE * B GARDNBR

L2 0 6 0 65.95 55.04 -.87 .17 1.05 75H SPECULAR GLOSS < 75 DBGREE ' B HUNTER

Li 22 0 65.98 55.32 -.62 .32 .83 75 H SPBCULAR GLOSS < 75 DBGREE * B HUNTER

L301 0 66.1 6 54.63 -1.07 -.24 .60 75H SPBCULAR GLOSS < 75 DBGRBB * B HUNTER

L321 0 66.30 54.90 -.77 -.19 .88 75G SPBCULAR GLOSS <75 DBGRBB * B GARDNBR

Li 8 2 0 66.36 56.17 .29 .52 1.01 75H SPECULAR GLOSS < 75 DBGREE • B HUNTER

L456 0 66.46 54.41 -1.07 -.61 .61 75H SPBCULAR GLOSS < 75 DEGREE ' B HUNTER

L19 0C 0 66.50 55.00 -.57 -.29 .85 75G SPECULAR GLOSS < 75 DBGRBE * B GARDNER

L277A 0 66.59 55.66 .01 .03 1 .00 75 H SPECULAR GLOSS < 75 DBGRBE ' B HUNTER

L57 4 0 66.60 54.50 -.91 -.67 1.05 75G SPECULAR GLOSS < 75 DEGREB * B GARDNER

LI %9 0 66.60 57.50 1.50 1.12 1.02 750 SPECULAR GLOSS ( 75 DBGREE * B GARDNBR

L255 0 66.60 56.4 0 .61 .46 .73 75H SPBCULAR GLOSS < 75 DBGREB * • HUNTER H 73

A

0 66.69 55.60 .02 -.09 . 86 75 G SPECULAR GLOSS < 75 DEGREB * B GARDNBR

L278 0 66.74 56.20 .54 .23 1.22 75G SPECULAR GLOSS < 75 DBGRBE * • GARDNBR

L277B 0 66.78 56.36 . 69 .29 1.13 75 H SPBCULAR GLOSS < 75 DBGRBB * B HUNTBR

L2 5 6 0 66.80 55.14 -.28 -.45 1.02 75H SPECULAR GLOSS < 75 DBGRBE * B HUNTER L502G 0 66.93 54.80 -.47 -.76 .98 75 G SPECULAR GLOSS < 75 DBGRBB " B GARDNBR

Li 21 0 66.97 54.36 -. 80 -1.05 .70 75 H SPECULAR GLOSS <75 DBGRBE * B HUNTER

L288 67.02 55.08 -.20 -.66 .86 751 SPECULAR GLOSS < 75 DBGRBE * B HUNTER. 20 C. 655 EH

L2i 3 0 67.08 55.1 7 -.09 -.66 1.35 75H SPBCULAR GLOSS < 75 DBGREE HUNTBR

L592 0 67.15 54.1 2 -. 89 -1.34 1 .36 75 H SPECULAR GLOSS ( 75 DEGRBE ' B HUNTER

Li 08 0 67.24 55. 91 .60 -.34 1.22 75H SPECULAR GLOSS < 75 DBGREE * B HUNTER

L223 0 67.25 55.98 .66 -.31 1.02 75 H SPECULAR GLOSS < 75 DBGREE ' B HUNTER

L2i 1 0 67.33 56.40 1.05 -.12 .97 75 H SPBCULAR GLOSS < 75 DBGREE " B HUNTER

L2 5 9 0 67.53 57.3 5 1.93 .28 1 .32 75H SPECULAR GLOSS < 75 DBGREE * * HUNTER

L50 2H 0 67.68 56.48 1.32 -. 36 .89 75H SPBCULAR GLOSS < 75 DBGRBE HUNTBR

L3i 7 0 67.71 55. 36 .44 -1 .05 .89 75H SPECULAR GLOSS < 75 DBGREE HUNTER

L262 0 67.80 59.30 3.66 1.23 .76 75 X SPECULAR GLOSS < 75 DEGRBE GAERTNER ( l>C TYPE > L24 3 0 67.80 56.10 1 . 09 -.68 1.13 75 B SPECULAR GLOSS < 75 DBGREE " • BAUSCH LOMB

Li 6 6 • 68.00 60.30 4. 58 1.67 .67 75 B SPECULAR GLOSS < 75 DBGREE ' B BAUSCH LOMB

L587 0 68.10 55. 20 .54 -1.46 . 85 75H SPBCULAR GLOSS < 75 DBGREE * B HUNTBR

Li 53 0 68.15 59.25 3.82 .92 1.19 75 G SPECULAR GLOSS < 75 DEGREB * B GARDNBR

Li 3 6 0 68.94 57.07 2.55 -1.02 . 90 75 G SPECULAR GLOSS < 75 DBGRBE ' * GARDNER

L2 51 0 69.30 56.55 2.34 -1.62 . 89 75G SPBCULAR GLOSS < 75 DBGREE GARDNER

L21 0 * 70.32 57.63 3. 82 -1.79 1.03 75H SPECULAR GLOSS < 75 DBGREE HUNTER

Li 62 * 70.59 61 .77 7.30 . 46 .59 750 SPECULAR GLOSS < 75 DBGREE GARDNER

GMEANS

:

66.61 55.63 1.00 95% ELLIPSE: 6. 06 2.21 WITH GAMMA - 53 DBGRBES

42
GL0SS

UNITS

SPECULRR GL0SS , 75 DEGREE

SAMPLE J23 = 66.6 GLOSS UNITS SAMPLE H55. = 55.6 GLOSS UNITS

43
REPOST NO. 520 TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T90-1 TABLE 1 THICKNESS (CALIPER). THOUSANDTHS OF AN INCH TAPPI STANDARD T4U OS-76 SAMPLE PRINTING SAMPLE PRINTING TEST D. • 10 LAB H33 96 GBAMS PER SQDARB METBR J21 89 GRAMS PER SQUARE METER

C0DB MEAN DEV N.DEV SDR R. SDR MEAN DEV N. DEV SDR R.SDS VAR P LAB

LI 00 6.208 -.110 -1.09 . 073 .95 2.953 -.039 -.47 • 052 .91 90V © LI 00

LI 0 5 6.345 .027 .27 .049 .63 3.029 .037 .46 • 049 . 86 90T 0 LI 05

Li 18 6.528 • 210 2.10 • 068 . 88 3.142 .150 1.84 . 055 .97 90V 0 LI 18

LI 22 6.287 -.031 -.30 • 101 1.32 3.032 .040 .49 • 092 1.62 90V 0 LI 22

LI 23F 6.545 .227 2.27 • 101 1.31 3.105 .113 1.39 .090 1 . 58 90F 0 L123F

Li 2 5 6.300 -.018 -.17 • 110 1 . 43 2.900 -.092 -1.12 . 085 1 .49 90T 0 LI 25

Li 2 8 6.277 -.041 -.40 • 061 .80 2.988 -.004 -.05 .027 .48 90T 0 LI 28

Li 31 6.380 .062 .62 • 079 1.02 3.080 . 088 1.08 . 063 1 .11 90T 0 LI 31 Li 39 6.466 • 148 1.48 .063 .61 3.166 .174 2.13 .048 .85 90T 0 LI 39

Li 53 6.324 • 006 .06 • 066 .86 3.030 .038 .47 • 049 .87 90T 0 LI 53

Li 58 6.380 • 062 .62 .092 1.19 2.960 -.032 -.39 • 052 .91 90T 0 LI 58

Li 59 6.387 .069 .69 .037 .48 3.071 .079 .97 .031 .55 90T 0 LI 59

Li 62 6.274 -.044 -.43 .049 .63 2, 954 -.038 -.46 .044 .77 90D 0 LI 62

LI 66 6.233 -.085 -.84 .097 1.26 3.033 .041 .51 .072 1 .26 90T 6 LI 66 L173B 6.276 -.042 -.41 .055 .71 3.065 .073 .90 .063 1.10 90F 0 L173B

Li 74 6.110 -.208 -2.07 .166 2.16 2.830 -.162 -1.98 • 106 1.87 90T 0 LI 74

Li 82 6.245 -.073 -.72 • 046 .60 2.939 -.052 -.64 • 028 .49 90L 0 LI 82

Li 83 6.251 -.067 -.66 .059 .76 2.982 -.010 -.12 . 089 1 .57 90T 0 LI 83

LI 90C 6.140 -.178 -1.77 • 084 1.09 2.960 -.032 -.39 .070 1..23 90T 0 L190C L203A 6.310 -.008 -.07 .052 .67 2.805 -.187 -2.28 .055 .97 90T • L203A

L203C 6.310 -.008 -.07 .070 .91 2.965 -.027 -.33 .058 1 .02 90T 0 L203C

L21 3 6.460 .142 1 .42 .070 .91 3.030 .03 8 .47 • 048 .85 90T 0 L213

L22

1

6.430 • 112 1.12 . 059 .76 3.100 .108 1.32 .058 1.02 90T 0 L221

L2 2 3 6.440 .122 1.22 .075 .97 3.094 .102 1.25 . 059 1.04 90V 0 L2 2 3 L2 2 8 6.340 .022 .22 .094 1.21 2.970 -.022 -*27 .071 1.26 90T 0 L228

L233 6.430 .112 1.12 .134 1.73 3.060 .068 . 84 . 088 1 . 54 900 0 L233

L2 3 8A 6.426 .108 1.08 . 053 . 68 3.042 .050 .62 .058 1 .03 90T 0 L238A

L241 6.245 -.073 -.72 .093 1.20 3.070 .078 .96 • 082 1.45 90T 0 L241

L2 49 6.275 -.043 -.42 .032 .41 2.974 -.018 -.22 • 032 .57 90T 0 L249

L2 60 6.306 -.012 -.11 .032 .42 2.930 -.062 -.75 • 046 .81 90T 0 L260

L261 6.340 .022 .22 • 107 1.39 3.015 .023 .29 .085 1 .50 90T 0 L261

L2 62 6.250 -.068 -.67 .053 . 68 • 2.900 -.092 -1.12 .067 1.17 90T 0 L262

L291 6.440 • 122 1.22 .097 1.25 3.060 .068 .84 .052 .91 90T 0 L291

L29 7 6.325 .007 .07 .059 .76 2.975 -.017 -.20 .049 .86 90T 0 L297

L309 6.200 -.118 -1.17 • 082 1.06 2.850 -.142 -1.73 .071 1.25 90T 0 L309

L31 8 6. 280 -.038 -.37 .109 1 . 41 2.840 -.152 -1.86 • 052 .91 90T 0 L31 8 L323 6.100 -.21 8 -2.17 . 06 / . 86 2.780 -.212 -2. S9 .063 1.11 90T • L323

L324 6.240 -.078 -.77 .107 1.39 3.080 . 088 1.08 .063 1.11 90T 0 L324

L32 6 6.425 .107 1 .07 . 059 .76 3.075 . 083 1.02 • 042 .75 90T 0 L326

L32 8 6.290 -.028 -.27 • 120 1. 55 2.940 -.052 -.63 • 052 .91 90T 0 L328

L331 6.286 -.032 -.31 .056 .73 2.950 -.042 -.51 .040 .70 90T O L331 L339 6.165 -.153 -1.52 .133 1.73 2.925 -.067 -.82 • 086 1.51 90T 0 L339

L34

1

6.423 .105 1.05 .062 .61 2.972 *-.020 -.24 .020 .35 90T 0 L341 L352 6. 285 -.033 -.32 . 065 .84 3.020 .028 . 35 .026 .45 900 0 L352

L3 5 6 6.316 - .002 -.02 .070 .91 2.999 .007 .09 .033 .58 90T 0 L356

L358 6. 271 -.047 -.46 . 069 .90 2.967 -.025 -.30 . 045 .79 90T 0 L358

L372 6. 319 • 001 .01 .043 . 56 2.971 -.021 -.25 • 064 1.13 90T 0 L372

L3 76 6.440 • 122 1.22 . 070 .91 3.050 . 058 .71 . 053 .93 90T 0 L376

L378 6.215 -.103 -1.02 • 100 1.30 2.965 -.027 -.33 .078 1.38 90T 0 L378

L382 6.477 .159 1.59 • 082 1.07 3.127 .135 1.65 .051 .89 90T 0 L382

L390 6.261 - .057 -.56 • 040 . 52 3.019 .027 .33 . 054 .95 90T 0 L390

L442 6.429 .111 1.11 .065 . 64 3.101 .109 1 . 34 . 045 .79 90T 0 L442 L556 6. 269 -.049 -.48 .081 1 . 05 2.979 -.013 -.16 .040 .70 90T 0 L*56

L557 6.210 -.108 -1.07 .074 .96 2.960 -.032 -.39 .052 .91 90T 0 L557

L559 6.330 • 012 .12 .065 .84 2.940 -.052 -.63 • 046 .31 90 r 0 L559

L560 6.426 .108 1.08 .075 . 98 2.980 -.01 2 -.14 .028 .50 90T 0 L560

L5 61 6.300 -.018 -.17 .125 1.62 2.970 -.022 -.27 • 106 1.87 90T 0 L561 L567 6. 406 • 088 .88 • 044 . 56 3.067 .075 .92 . 049 .86 90V 0 L567

L574 6.139 -.179 -1.78 .076 .99 2.940 -.052 -.63 • 048 .85 90V 0 L574

L575 6. 231 -.087 -.86 .122 1 . 58 2.934 -.058 -.71 .037 .65 90T 0 L575

L581 6.410 .092 .92 .066 . 85 3.015 .023 .29 . 058 1 .02 90T 0 L581 L587 6. 260 -.058 — . 57 .084 1.09 2.860 -.132 -1.61 • 052 .91 90T 0 L587

GB. BEAN - 6.318 MILS GRAND MEAN - 2.992 MILS TBST DBTBRMINATIONS - 10

SD MEANS - . 100 MILS SD 0F MEANS - .082 MILS 62 LABS IN GRAND MBANS AVERAGE SDR -

• 077 MILS AVBRAGE SDR - .057 MILS

GB. MBAN -160.46 MICROMETER GRAND MEAN - 75.99 MICR0MBTBR 44
REPORT NO. 520 TAPPI COLLABOBATI VB REPBBBNCE PROGRAM MABCB 1978 ANALYSIS T90-1 TABLE 1 THICKNESS (CALIPER), THOUSANDTHS OP AN INCH TAPPI STANDABD T4I1 OS-76

LAB SAMPLB

H33 PRINTING

96 GRAMS PBB SQUARE METEB

SAMPLE

J21 89 GRAMS PRINTINGPEE SQUARE METEB TEST 10 CODE MBAN DEV N.DBV SDB B. SDR MBAN DBV N.DBV SDB R.SDB VAB F LAB

Lies 6.254 -.064 -.63 .068 . 88 2.942 -.050 -.61 .030 .54 90B • LI 85 L203B 6.200 -.118 -1.17 .170 2.20 2.920 -.072 -.88 .063 1.11 90C L203B

L2A20 6.328 .010 .10 .046 .60 3.006 .015 .18 .059 1 .04 900 L2420

L2A2P 6.312 -.006 -.06 .071 .93 3.053 .062 .76 .033 .59 90P L242P

L243 6.148 -.170 -1.69 .053 . 68 3.008 .016 .20 .040 .71 90S L243

L251 6.170 -.147 -1.47 .059 .77 2.935 -.056 -.69 .043 .76 90« L261

L32 2 6.190 -.128 •1.27 .137 1.78 2.940 -.052 -.63 .126 2.23 90U • L322

L330 6.170 -.148 -1.47 .106 1.37 3.000 .008 .10 .000 .00 90U L330

L344 6.450 .132 1 .32 .118 1.53 3.210 .218 2.67 .032 .56 90U L344

L39 6R 6.100 -.218 -2.17 .082 1.06 2.900 -.092 -1.12 .082 1 .44 90S L396M

L48A 6.118 -.199 -1.99 .086 1.11 2.850 -.141 -1.73 .074 1.30 90E L484

L5 62 6.337 .019 .19 .099 1.28 3.069 .077 .95 .084 1.49 90C L562

L564 6.150 -.168 -1.67 .097 1.26 2.950 -.042 -.51 .053 .93 90Y L564

L576 TOTAL 6.158 —.160 -1.59 .147 NUMBER OF LABO BA TO B I ES REPORTING • 1.90

76 3.006 .014 .17 .069 1 .21 90C L576

Best Values: H33 6.31 + 0.16 mils J21 2.99 + 0.14 mils

45
F

«-0

0

0

0

0

0

00

0

0

00

0

0

0

0

00

0

0

0

0

00

0

0

0

0

0

0

0

0

*

0

0

00

0

0

00

0

0

00

0

00

0

0

0

N0. 52G TAPPI C0LLAB0RATI VB REFERENCE PROGRAM MARCH 1970 ANALYSIS T90-1 TABLE 2 THICKNESS (CALIPBR). THOUSANDTHS 0F AN INCH TAPPI STANDARD T41 1 0S-76 MBANS COORDINATES AVG

H33 J21 MAJOR MIN0R R. SDR VAR PROPERTY— -TEST INSTRUMENT- —CONDITIONS

6.100 2.900 -.229 • 057 1.25 90S THICKNESS ( CALIPER ). SCH0PPBR , HAND DRIVBN 6.100 2.780 -.301 -.039 .99 90 T THICKNBSS ( CALIPER ). TMI. M0T0R DRIVEN

6.110 2.830 -.263 -•005 2.01 90T THICKNBSS ( CALIPBR ), TMI, M0T0R DRIVEN

6.118 2.850 -.244 • 006 1.20 90 B THICKNBSS ( CALIPBR ), SCH0PPBR . HAND DRIVBN

6.139 2.94 0 -.174 .066 .92 90V THICKNBSS < CALIPER ), TMI. M0T0R DRIVBN, DIGITIZED

6.140 2.960 -.161 .081 1.16 90T THICKNESS ( CALIPER ), TMI. M0T0R DRIVBN

6. 148 3.008 -.126 .115 .70 90S THICKNBSS ( CALIPBR ), SCH0PPE R , HAND DRIVEN

6.150 2.950 -.159 .067 1 .09 90 Y THICKNESS ( CALIPBR ), HEAP, HAND DRIVEN 6.158 3.006 -.119 .107 1.55 90C THICKNBSS ( CALIPER ), CADY. HAND DRIVEN 6.165 2.925 -.162 .038 1 .62 90 T THICKNESS ( CALIPER ), TMI, M0T0R DRIVBN

6.170 3.000 -.113 .095 .69 90U THICKNBSS < CALIPBR ), TMI. HAND DRIVEN 6.170 2.935 -.152 .043 .76 90 W THICKNBSS < CALIPBR), L W, M0T0R DRIVEN, 20 C. 65% RH 6.190 2.940 -.133 .035 2.00 90 U THICKNESS ( CALIPER ). TMI, HAND DRIVBN

6.200 2.920 -.137 .013 1.66 90 C THICKNESS ( CALIPBR ), CADY, HAND DRIVBN

6.200 2.850 -.179 -.043 1.15 90T THICKNESS < CALIPBR ), TMI, M0T0R DRIVEN 6.208 2.953 -.111 .035 .93 90V THICKNESS (CALIPER), TMI. M0T0R DRIVEN, DIGITIZED

6.210 2.960 -.105 .039 .93 90T THICKNESS ( CALIPBR ), TMI, M0T0R DRIVEN 6.215 2.965 -.098 .040 1.34 90 T THICKNBSS ( CALIPBR), TMI, M0T0R DRIVEN

6.231 2.934 -.104 • 006 1.12 90T THICKNESS ( CALIPBR ), TMI, M0T0R DRIVBN 6.233 3.033 -.043 .084 1.26 90T THICKNESS ( CALIPBR ), TMI , M0T0R DRIVBN 6.240 3.080 -.009 .117 1.25 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN 6.245 2.939 -.090 • 002 .54 90L THICKNESS ( CALIPER ), L W, M0T0R DRIVBN 6.245 3.070 -.011 .106 1.33 90 T THICKNESS ( CALIPBR ), TMI. M0T0R DRIVBN

6.250 2.900 -.109 -.033 .93 90 T THICKNESS ( CALIPBR ), TMI, M0T0R DRIVBN

6.251 2.982 -.059 .032 1.17 90T THICKNESS ( CALIPER ), TMI. M0T0R DRIVBN

6.254 2.942 -.081 -.002 .71 90B THICKNESS < CALIPBR ), AMTH0R, HAND DRIVEN

6.260 2.860 -.125 -.071 1 .00 90T THICKNESS ( CALIPBR ). TMI. M0T0R DRIVEN

6.261 3.01 9 -.029 .056 .73 90T THICKNBSS < CALIPBR), TMI. M0T0R DRIVEN

6.269 2.979 -.046 • 019 .87 90T THICKNESS ( CALIPBR ), TMI. M0T0R DRIVBN

6.271 2.967 -.052 • 008 .84 90T THICKNBSS ( CALIPER ), TMI, M0T0R DRIVBN

6.274 2.954 -.057 - .004 . 70 90D THICKNBSS ( CALIPER ), CADY, M0T0R DRIVEN 6.275 2.974 -.045 • on .49 90T THICKNESS < CALIPER ). TMI. M0T0R DRIVBN

6.27 6 3.065 .011 . 084 .91 90 F THICKNBSS ( CALIPER ), FEDERAL, M0T0R DRIVBN

6.27 7 2.988 -.035 • 021 .64 90T THICKNBSS ( CALIPBR ), TMI . M0T0R DRIVEN 6.280 2.840 -.121 -.099 1.16 90 T THICKNESS < CALIPBR ), TMI. M0T0R DRIVEN 6.285 3.020 -.009 • 042 .65 900 THICKNBSS ( CALIPBR >, EMVEC0, M0T0R DRIVEN 6.286 2.950 -.050 -.015 .72 90T THICKNBSS ( CALIPER ), TMI, M0T0R DRIVEN

6.287 3.032 -.000 .051 1.47 90V THICKNESS ( CALIPBR ), TMI. M0T0R DRI VBN, DIGITIZED

6.290 2.94 0 -.053 -.025 1 .23 90T THICKNBSS ( CALIPBR ), TMI. M0T0R DRIVEN

6. 300 2.900 -.069 -.063 1.46 90 T THICKNBSS < CALIPBR ). TMI . M0T0R DRIVBN 6.300 2.970 -.027 -.007 1.74 90T THICKNBSS ( CALIPBR ), TMI. M0T0R DRIVBN 6.3C6 2.930 -.046 -.042 .62 90 T THICKNES3 ( CALIPBR ). TMI . M0T0R DRIVBN

6.310 2.965 -.022 -.017 .96 90T THICKNESS ( CALIPBR ), TMI, M0T0R DRIVBN 6.310 2.805 -.118 -.145 .82 90 T THICKNBSS ( CALIPER ). TMI, M0T0R DRIVEN

6.31 2 3.053 .033 .053 .76 90P THICKNBSS ( CALIPBR ). MBSSMBR, M0T0R DRIVBN, ISO R534 6.316 2.999 .003 .007 .74 90T THICKNBSS ( CALIPBR ), TMI. MOTOR DRIVBN

6.319 2.971 -.Oil -.017 .85 90T THICKNBSS ( CALIPBR ), TMI, M0T0R DRIVEN 6.324 3.030 .028 .027 .87 90T THICKNBSS ( CALIPBR ), TMI, M0T0R DRIVBN 6.325 2.975 -.004 -.018 .81 90T THICKNBSS ( CALIPBR ). TMI. M0T0R DRIVBN 6.328 3.006 .017 .006 .82 900 THICKNBSS ( CALIPER >. MBSSMER, M0T0R DRIVBN, BS3983 6.330 2.940 -.021 -.049 .83 90T THICKNESS ( CALIPBR ). TMI. M0T0R DRIVBN 6.337 3.069 .062 .0 50 1 .38 90C THICKNESS ( CALIPBR >, CADY. HAND DRIVEN

6.340 3.01 5 .032 .005 1.45 90 T THICKNESS ( CALIPBR ), TMI, M0T0R DRIVEN

6.340 2.970 .005 -.031 1.24 90T THICKNBSS ( CALIPER ), TMI. M0T0R DRIVBN 6.345 3. 029 .044 .013 . 75 90T THICKNESS ( CALIPBR ), TMI , M0T0R DRIVBN 6.300 3.080 .103 .033 1.07 90T thickness ( CALIPER ), TMI. M0T0R DRIVBN

6. 38 0 2.960 .031 -.063 1 .05 90T THICKNESS ( CALIPER ), TMI , M0T0R DRIVBN 6.387 3.071 .103 • 022 .52 90T THICKNESS ( CALIPBR ). TMI. MOTOR DRIVBN

6.40 6 3.067 .116 .007 .71 90V THICKNESS ( CALIPER ). TMI, M0T0R DRIVEN. DIGITIZED

6.41 0 3.01 5 .088 -.037 .94 90 T THICKNBSS ( CALIPBR ), TMI, M0T0R DRIVBN 6.423 2.972 .073 -.079 .58 90T THICKNBSS ( CALIPBR ), TMI . M0T0R DRIVEN 6.425 3.075 .136 • 002 .76 90T THICKNESS ( CALIPER ), TMI. M0T0R DRIVBN

6.426 2.980 .080 -.074 .74 90T THICKNESS < CALIPBR ), TMI, M0T0R DRIVEN

6.426 3.042 .117 -.025 .86 90T THICKNBSS ( CALIPBR ), TMI . M0T0R DRIVEN

6.429 3.101 .155 • 021 .82 90T THICKNBSS ( CALIPBR ), TMI. M0T0R DRIVBN

46
REPORT NO. 520 TAPPI COLLABORATIVE REFERENCE PROGRAM MARCH 1978 ANALYSIS T90-1 TABLE 2 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T411 OS-76

LAB MEANS COORDINATES AVO

CODE F H33 J21 MAJOR MINOR R. SDR VAR PROPERTY- --TEST INSTRUMENT- --CONDITIONS

L233 0 6. 430 3.060 .131 -.013 1 .64 900 THICKNESS < CALIPER ), EMVECO, MOTOR DRIVEN

L2 2 1 0 6.430 3.100 .155 .019 .89 90T THICKNESS < CALIPER ), TMI . MOTOR DRI VEN L376 0 6. 440 3.050 .133 -.027 .92 90 T THICKNESS ( CALIPER ). TMI , MOTOR DRIVEN

L2 91 0 6.440 3.060 .139 -.019 1.03 90T THICKNESS ( CALIPER )» TM I , MOTOR DRIVEN

L223 0 6.440 3.094 .159 .009 1.00 90 V THICKNESS ( CALIPER ), TMI, MOTOR DRI VEN, DIGITIZED

L344 6.450 3.21 0 .237 .095 1 .04 90 U THICKNESS (CALIPER ), TMI , HAND DRIVEN

L21 3 0 6.460 3.030 .137 -.055 . 88 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

LI 39 0 6. 46 6 3.1 66 .223 .051 .83 90T THICKNESS ( CALIPER )» TMI . MOTOR DRIVEN

L382 0 6. 47 7 3.127 .209 .013 .98 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

LI 1 8 0 6.528 3.142 ,259 -.006 .92 90 V THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN, DIGITIZED

LI 2 3 P 0 6.545 3.105 ,850 -.046 1.45 90 F THICKNESS ( CALIPER >, FEDERAL. MOTOR DRIVEN GLEANS

:

6.31 8 2.992 1 .00 95% ELLIPSE: ,303 .124 WITH GAMMA - 36 DEGREES

47
MILS

THICKNESS ( CRL I PER )

SAMPLE H33 = 6.32 MILS SAMPLE J21 = 2.99 MILS

SAMPLE H33 = 160-5 MICROMETER SAMPLE J21 = 76.0 MICROMETER

MILS

i i 1

1 1 1 1 1 1 1 152 154 156 158 160 162 164 166 168 170

MICROMETER

48
RBP0RT N0 # 52

G

TAPPI C0LLAB0RATI VB RBFBRBNCB PROGRAM ANALYSIS T95-1 TABLE 1 GRAMMAGB (MASS PBR UNIT ARBA

)

TAPPI STANDARD T410 OS-60

MARCH 1970

LAB SAMPLE

D26 KRAFT BNVEL0PB

123 GRAMS PER SQUARB METER

SAMPLE D27 PRINTING PAPER

77 GRAMS PER SQUARE METER TEST D. 1 10 CODB MEAN DEV N. DEV SDR R. SDR MEAN DBV N. DEV SDR R.SDR VAR F LAB

LI 00 123.40 .05 .09 .52 .65 76.90 -.03 -.05 .37 .92 95C 0 LI 00

LI 21 123.88 .53 . 89 .94 1.19 70.15 1.14 1.79 .70 1.77 95B 0 LI 21

LI 62 121 .50 -1.85 -3.06 .53 .67 76.19 -. 82 -1.29 .21 .53 95K • LI 62

L21 3 123.68 .33 .55 .87 1.10 77.10 .09 .14 .35 .89 95F 6 L213

L2 3 3 142.30 18.95 31.47 1 .49 1.89 90. 00 13.79 21.71 .42 1 .06 9ST * L233

L2 4 9 123.10 -.25 -.41 .32 .40 76.62 -.39 -.62 .21 .54 951 0 L249

L2 8 0 123.48 .13 .22 .94 1.18 76.46 -.55 -.87 .39 .97 95T 0 L280

L297 124.00 .65 1.09 .00 .00 76. 07 -.14 -.23 .29 .72 95C 0 L297

L339 124.00 .65 1.09 .00 .00 77.00 .07 .11 .09 .23 95T 0 L339

L344 123.60 .25 .42 .24 .30 77.07 . 06 .10 .19 .47 95T 0 L344

L370 123.03 -.32 -.52 1.28 1.61 77.04 .03 .05 .39 .98 95B 0 L378

L557 123. 60 .25 .42 1 .43 1.80 77.20 .19 .30 .42 1.06 95 A 0 L557

L559 23.70 -99.65 -165.43 .31 .39 15.13 -61 .88 -97.41 .05 .12 95 A 4 LF59

L560 1 23.33 -.02 -.03 1 .01 1.27 76.53 -.48 -.76 .17 .43 95 A 0 L560

L561 123.24 -.11 -.17 1.61 2.03 70.47 1.46 2.30 1.26 3.17 95T 0 L561

L564 123.03 -.31 -.52 .77 .98 76.15 -.86 -1 .35 .27 .69 95E 0 L564

L597 124.72 1.37 2.28 2.17 2. 74 92.90 15.89 25.01 .00 .00 95C n L597

L61 6 123.31 -.04 -.06 1 .18 1.49 77.25 .24 .38 .47 1.17 95T 0 L616

GR. MEAN -123.35 G/SQ.METBR GRAND MEAN - 77.01 G/SO. METER TEST DETERMINATIONS - 11 SD MEANS - .60 G/9Q.MBTBR SD OP MBANS - . 64 G/SO.MBTBR 15 LABS IN GRAND MEANS AVERAGE SDR - .79 G/SO. METER AVERAOB SDR - .40 G/SQ.MBTER

TOTAL NUMBER OF LABORATORIES REPORTING - 10

Best Values: D26 123.4 + 0.6 grams per square meter

D27 77.0 + 1.0 grams per square meter

The following laboratories were omitted from the grand means because of extreme test results: 233,

597.

Data from the following laboratories appear to be

off by a multiplicative factor: 559.

49
REPORT NO. 52G TAPPI COLLABORATIVE RBFBRENCB PROGRAM ANALYSIS T95-1 TABLB 2 GRAMUAGB (MASS PBR UNIT ARBA

)

TAPPI STANDARD TAIO OS-68

MARCB 1978

LAB C0DB F MEANS

D26 D27 C00RDINATESMAJ0R MIN0R

AVG

R. SDR VAR PROPERTY----TEST INSTRUMBNT---C0NDITI0NS

L559 tt 23.70 15.13 -112.35 33.72 .25 95A BASIS WEIGHT ( GRAM MAGE >, CHANDLER PRICB PA PBR

LI 6 2 *• 121.50 76.19 -1.84 .84 .60 95 K BASIS WEIGHT ( GRAM MAGE ), WEIGHED AS RBCBIVBD

L3 7 a 0 123.03 77.04 -.19 .26 1.29 95E BASIS WEIGHT ( GRAM MAGE), GUI LL0TINB TYPE CUTTER

L564 0 123.03 76.15 -.85 -.33 .83 95E BASIS WEIGHT ( GRAMMAGE ), GUI LL0TINE TYPE CUTTBR

L2 4 9 0 123.10 76.62 -.46 -.08 .47 951 BASIS WEIGHT ( GRAMMAGB), INGBNT0 PAPER CUTTER

L561 0 123.24 78.47 1.02 1.04 2.60 95T BASIS WEIGHT ( GRAMMAGE >, TBMPLATE CUT

L616 0 123.31 77.25 .16 .18 1.33 95T BASIS WEIGHT (GRAMMAGE). TEMPLATE CUT

L5 6 0 0 123.33 76. 53 -.37 -.31 .85 95 A BASIS WBIGHT ( GRAMMAGB ). CHANDLER PRICB PAPER

LI 00 0 123.40 76.98 .01 -.06 .79 95 C BASIS WBIGHT (GRAMMAGE). CUTTING B0ARD

L2B0 0 123.48 76.4 6 -.32 -.47 1 .08 95T BASIS WBIGHT (GRAMMAGE). TBMPLATE CUT

L344 0 123.60 77.07 .21 -.15 .39 95T BASIS WBIGHT (GRAMMAGE), TEMPLATE CUT

L557 0 123.60 77.20 .31 -.07 1.43 95 A BASIS WEIGHT (GRAMMAGB). CHANDLER PRICB PAPBR

L213 0 123.68 77.10 .29 -.19 .99 95 F BASIS WBIGHT ( GRAMMAGB ), F0UR-SOUARB CUTTER

LI 21 0 123.88 78.15 1.21 .35 1.48 95 B BASIS WBIGHT ( GRAMMAGE ), C0NC0RA CUTTBR

L297 0 124.00 76.87 .33 -.59 .36 95 C BASIS WBIGHT (GRAMMAGE), CUTTING B0ARD

L3 3 9 0 124.00 77.08 .49 -.45 .12 95 T BASIS WEIGHT (GRAMMAGB), TEMPLATE CUT

L597 * 124.72 92.90 12.82 9.49 1 .37 95C BASIS WEIGHT (GRAMMAGE), CUTTING B0ARD

L2 3 3 H 142.30 90.80 22.88 -5.08 1.47 95T BASIS WEIGHT ( GRAMMAGE ), TEMPLATE CUT

GMEANS: 123.35 77.01 95% ELLIPSE: 2.12 1.34

1 .00 WITH GAMMA - 48 DEGREBS

50
G/SQ.

METER

75.0

76.0

77.0

78.0

79.

GRAMM AGE (MASS PER UNIT AREA)

SAMPLE D26 = 123.3 G/SQ. METER

i i i i SAMPLE D27 r 77.0 G/SQ. METER

i i i i i

+.X.# N0T IN GRAND MEANS

CM

- <=> ANALYSIS T95-1 -

LjJ CL

g

- CO

- O

c 0

© ©o o

©

O

O

c > ~©

* O

-

1 1 1 1 SAMPLE D26 —i

1 1 — 1 i

i

1 1 1 —i

1

1 i i 121.5 122.5 123.5 124.5 125.5

G/SQ. METER

51
BEP6RT N0. 52G TAPP I C0LLAB0RATI VE REFERENCE PROGRAM MARCH 1976

SUMMARY TABLE

SAMPLE GRAND SD OF AVER REPL LABS LABS REPL TEST METHOD CODE MBAN MEAN SDR CRP INCL PARTIC TAPPI RBPBAT REPR0D

AIR RESISTANCE, GURLEY H49 30.94 1.64 1.79 10 48 55 10 1.56 4.55

T40-1 GURLEY UNITS J45 12.22 .56 .84 .74 1 • 55

AIR RESISTANCE. SHEFFIELD H49 104.5 5.0 4.5 10 36 43 10 3.9 13.8

T40-2 SHEFF. UNITS J45 222.1 10.4 12.0 10.5 28.7

AIR RESISTANCE, GURLEY HG FLOTATION E64 510. 35. 98. 10 15 15 10 86. 97.

T4 1-1 SEC/10 CC E68 805. 66. 100. 87. 237. SMOOTHNESS, PARKER PRINTSURF E36 4.02 .14 .14 10 7 8 10 • 1 3 . 39 T44-1 MICRONS B91 4.27 .31 .19 .16 . 85 SMOOTHNESS, SHEFFIELD E3 6 104.9 5. 1 5.9 15 91 94 10 5.1 14 .4 T45-1 SHEFF. UNITS B91 128.0 6.3 9.7 8.5 18.2 SM0OTHNES S, BEKK B36 45.3 2.7 4.6 15 9 14 10 4.0 7.8 T45-2 BEKK SECONDS B91 46.2 5.0 6.5 5.7 14.2 SMOOTHNESS, B3NDTSEN E36 101.5 1.2 10.4 10 8 10 10 9. 1 3.4

T47-1 ML/M IN B91 121.7 8.9 13.7 12.0 24. 7 KAN INK ABSORPTION H80 66.0 5.0 . 5 4 8 9 4 .7 13.8

T56-1 KAN UNITS H58 64.4 5.5 .4 . 6 15.2

PH, COLD J17 4.765 .181 .052 5 5 7 2 .101 .507

T57-1 PH UNITS J61 5. 622 .047 .064 .125 . 1 62

PH, HOT J17 4.36 .14 .07 5 6 7 2 .14 . 41 T57-2 PH UNITS J61 5.14 .24 .10 .19 .67 OPACITY, BAL TYPE, 89% BACKING E50 92.29 .56 .51 10 81 96 5 .64 1.62

T60-1 PERCENT H51 90.18 .55 .38 .48 1.55

OPACITY, BAL TYPE, PAPER BACKING E50 93.31 .59 .50 10 10 10 5 .62 1.71 T60-2 PERCENT H51 91 .91 .40 .38 .47 1.17 OPACITY, ELREPHO TYPE. PAPER BACKING E50 93.99 .29 .29 10 12 15 5 .35 . 84 T60-3 PERCENT H51 92.84 .27 .23 .29 .78 BLUE REFLECTANCE, DIRECTIONAL H31 81 .06 .26 .17 8 20 45 6 .19 . 74 T65-1 PERCENT H5 3 68.29 .23 .23 .26 . 65 BLUE REPLECTANCE, DIFFUSE. WITH TRAP H31 81 .71 .81 .06 8 18 21 6 .07 2.25 T65-2 PERCENT H53 67.92 .92 .20 .23 2.55

BLUE REFLECTANCE, DIFFUSE, NO TRAP H31 81 .60 .59 .07 8 15 15 6 .08 1 .64 T65-3 PERCENT H53 68.89 .67 .19 .22 1 . 87 SPECULAR GLOSS, 75 DEGREE J23 66.61 1.57 .99 1 0 47 54 5 1.22 4.44

T75-1 GLOSS UNITS H55 55.63 1.97 1.60 1.98 5.63 THICKNESS (CALIPER) H33 6.31 8 .100 .07 7 10 62 76 10 .068 .278

T90-1 MILS J21 2.992 .082 .057 .050 .226 GRAMM AGE (MASS PER UNIT AREA) D26 1 23.35 .60 .79 10 15 18 3 1.27 1.98

T95-1 G/SO. METER D2 7 77.01 .64 .40 .64 1 . 84

52
NBS-114A (REV. 7-73)

U.S. DEPT. OF COMM. 1. PUBLICATION OR REPORT NO. 2. Gov Accession

BIBLIOGRAPHIC DATA No. SHEET TAPP I CRP 52G

4. TITLE AND SUBTITLE

3. Recipient’s Accession No.

Technical Association of the Pulp and Paper Industry

COLLABORATIVE REFERENCE PROGRAM FOR PAPER

Report #52G

5. Publication Date June 19, 1978

6. Performing Organization Code

7. AUTHOR(S) 8. Performing Organ. Report No. NBSIR 78-1341

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, D.C. 20234

10. Project/Task/Work Unit No. 7825578

11. Contract/Grant No.

12. Sponsoring Organization Name and Complete Address (Street, City, State, ZIP)

Collaborative Testing Services, Inc., 9241 Wood Glade Drive,

Great Falls, Virginia 22066; and Technical Association

of the Pulp and Paper Industry

13. Type of Report & Period Covered

Final

14. Sponsoring Agency Code

15. SUPPLEMENTARY NOTES

16. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant

bibliography or literature survey, mention it here.)

Collaborative Reference Programs provide participating laboratories with the

means for checking periodically the level and uniformity of their testing in

comparison with that of other participating laboratories. An important

by-product of the programs is the provision of realistic pictures of the state

of the testing art. This is one of the periodic reports showing averages for

each participant, within and between laboratory variability, and other information

for participants and standards committees.

17. KEY WORDS ("six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name; separated by semicolons)

Collaborative reference program; Laboratory evaluation! Paper; Precision;

Reference samples, Testing calibration.

18. AVAILABILITY \^2 Unlimited

[T For Official Distribution. Do Not Release to NTIS

|

1 Order From Sup. of Doc., U.S. Government Printing Office Washington, D.C. 20402, SD Cat. No. Cl 3

Order From National Technical Information Service (NTIS)

Springfield, Virginia 22151

19. SECURITY CLASS

(THIS REPORT)

UNCL ASSIFIED

20. SECURITY CLASS

(THIS PAGE)

UNCLASSIFIED

21. NO. OF PAGES

58

22. Price

USC OMM- DC 29042-P74