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TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 58S

STRENGTH TESTS

6

U.S. DEPARTMENT OF COMMERCE

National Bureau of Standards
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TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

FEB 2 7 1980

lci0C p c c jut.

QC-L0D

f 1 W i J

i^n^i

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

Report No. 58S

STRENGTH TESTS

R. G. Powell

TAPPI-NBS Research Associate

Collaborative Testing Services, Inc.

J. Horlick

Office of Testing Laboratory Evaluation Technology

Office of Engineering Standards

National Engineering Laboratory

NBSIR 79-1375 U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

INTRODUCTION

Reports 58S and 58G comprise the fourth set of reports

for the 78-79 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#

Notes and comments to 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#

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

or the reports in general® contact Robert G® Powell or

Jeffrey Horlick on 301/921-2946#

Jeffrey Horlick, Administrator

NBS-TAPPI Collaborative Reference Program

Office of Testing Laboratory Evaluation Technology

June 8® 1979
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, depending 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 Simtmary 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.

ii
i ii

iv

15

8

1 1 14

21

23

26

29

32

34

36

38

40

43

46

49

52

53

55

57

60

TABLE GF CONTENTS

Analyses In This Report

Intro duct Ion

Description of Program

Metric Conversion Table

Key to Tables and Graphs

10-1 Bursting Strength - Up to 45 psi

10-2 Bursting Strength - Up to 45 psi. Air Clamps

1 1-1 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

30-2 Folding Endurance, MIT type, log (base 101

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 Sing Crush

Summary

Diagram of Elmendorf tear testers, deep cutout vs« no cutout

Analyses In The G Report

40-1 Air Resistance, Gurley Gil 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 KAN Ink Absorption

57-

1 pH, Cold Extraction

57-2 pH, Hot Extraction

60-1 Gpacity, White (89%) Backing

60-2 Gpacity, Paper Backing, B A L type

60-3 Gpacity, 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 degree

90-1 Thickness (Caliper)

95-1 Gramoage (Basis Weight)

ill
TABLE OF CONVERSION FACTORS TO METRIC (SI) UNITS

Physical

Quantity

To Convert

From To

Multiply

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/m .1751

lb/ 0.5 in. kN/m .3502

lb/15 mm kN/m .2965

kg/ 15 mm 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 pN*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 mil pm 25.40

iv
KEY TO TABLES AND GRAPHS

MEAN -

GRAND MEAN - (GR. MEAN)

SD OF MEANS - (SD MEANS)

The average of individual TEST DETERMINATIONS.

The number of TEST DETERMINATIONS in the

mean is given in the upper right corner of

the first table (TEST D.) and again at the

bottom of this table.

The average of the individual laboratory

MEANS, excluding laboratories flagged

(see column F) with an X, # , or +. The

GRAND MEAN is given in US customary units

and, where applicable, in SI metric units.

The standard deviation of the laboratory

MEANS about the GRAND MEAN ; an index of the

among-laboratory precision.

DEV -

N. DEV -

SDR -

AVERAGE SDR -

R. SDR -

The deviation or difference of the laboratory

MEAN from the GRAND MEAN.

The normal deviate or ratio of the DEV to

the SD OF MEANS; an indication of the degree

of divergence of the laboratory MEAN from

the GRAND MEAN. A N. DEV of more than 2 or less than -2 may indicate that the

participant is not following the procedure

considered standard for this analysis.

The standard deviation of repeated measurements

;

that is, of individual test determinations

about their MEAN.

The average of the individual laboratory

SDR's; an index of the within- laboratory

precision of repeated measurements

.

The relative standard deviation of repeated

measurements ; that is , the ratio of the SDR

to the AVERAGE SDR: an indication of the

ability of a participant to repeat his measurements relative to the average ability. The

greater the number of TEST DETERMINATIONS the

closer the R. SDR should be to unity. If R. SDR

is outside the limits given below, the participant may not be following the procedure considered

standard for this analysis:

1
No. of test

Determinations

Lower limit

for R. SDR

Upper limit

for R. SDR

3 0.09 2.58

5 0.27 2.06

8 o.Uo 1.77

10 0.1+6 1.67

15 0.56 1.53

20 o.6i 1.1+5

25 0.65 1.39

VAR - Code for instrument type or variation in

condition, see second table.

F - Flag , with following meaning

+ - Excluded from grand means because VAR

non-standard for this analysis

# - Excluded because data were not understood or because of a non-coded variation reported by

the laboratory . (See NOTES following Table 1

for each method.)

M - Excluded because data for one sample are missing

X - Excluded because plotted point would fall

outside of the 99% error ellipse, (see

below for explanation of Graph ) * - Included in grand means but plotted point

falls outside of the 95% error ellipse.

The participant should take this as a warning

to reexamine his testing procedure

S - Included in grand mean but only after

omission of one of more 'wild' values;

that is, test determinations more than 3

times AVERAGE SDR from the laboratory's

MEAN. Not more than 20$ of the test determination

may be excluded in this manner without

rejecting the laboratory.

0 - Included in grand mean and inside 95% error

ellipse.

COORDINATES - Distances along major and minor axes of error ellipse. If special additive or concurrent model of the measuring process

applies to this method, the distance along

the minor axis represents the random error within a laboratory while that along the

major axis also includes a systematic

laboratory component of error.

2
95% ELLIPSE -

AVG R. SDR -

Graph -

Lengths of the major and minor axes of

the ellipse and the angle that the major

axis makes with the horizontal axis.

Average of the R. SDR for the two samples;

an indication of the laboratory's precision

of repeated measurements.

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% ctf 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 TAPP I - 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 vising 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. 58 S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS TlO-1 TABLE 1 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS'-76, BURSTING STRENGTH OF PAPER - PERKINS MODEL C SAMPLE PRINTING SAMPLE PRINTING TEST D„ B 15 LAB K37 75 GRAMS PER SQUARE METER J 87 76 GRAMS PER SQUARE METER

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

LI 2 1 26*58 -1. 13 -.57 .90 .49 17.77 .44 .35 • 82 O 75 IOC 0 LI 2

1

LI 3 1 22*73 -4.98 -2.50 2.40 1. 32 14.93 -2. 39 -1.90 1.28 1. 18 IOC « L 1 3

1

LI 34 29*20 1.49 .75 1.61 . 88 16. 87 -.46 -.36 .83 .77 IOC 0 L 1 34

Li 50 27*20 -•51 -.26 1.73 • 95 18.33 1.01 .81 .93 .90 IOC 0 L 1 50

LI 53 28* 17 .46 .23 2.14 1. 17 17.57 • 24 .20 • 96 • 89 IOC 0 LI 53

Li 5 8 27*80 .09 .05 2.33 1.27 16.33 -.99 -.79 1.35 1.24 IOC 0 L 158 L167 26.23 -1.48 -.75 1.13 .62 16. 80 -.52 -.42 .73 .67 IOC 0 L 1 67

Li 83 27.63 -.08 -.04 1.48 .81 17.77 .44 .35 .90 . 83 IOC 0 LI 83

Li 9 i 23. 80 -3.91 -1.97 1.39 • 76 14. 13 -3.19 -2.54 1.0 1 .93 IOC * LI 91 L207 27.33 -.38 -. 19 2.30 1. 26 17.20 -• 12 -. 10 .86 .80 IOC 0 L207

L212 28.30 • 59 .30 2.43 1.33 17.83 • 51 .41 1.11 1.03 1 oc 0 L212 L223A 31.33 3.62 1 .62 1.45 .79 20.57 3.24 2. 59 1.30 1 . 20 1 oc * L2 23A L225 28.23 • 52 .26 1.72 .94 I 8.30 .98 .78 1.49 1.37 1 OC 0 L225

L232 27.90 • 19 .10 2.25 1.23 17.43 • 1 1 .09 1.07 .99 IOC 0 L232 L237A 27.00 -•71 -.36 1.07 . 58 16.73 -.59 -.47 .70 .65 IOC 0 L237A

L237B 26.80 -•91 -.46 • 94 .51 17. 93 .61 .49 • 59 .55 1 OC 0 L237B

L24 3 26.67 -1.04 -.52 1.57 . 86 18.90 1.56 1. 26 .83 .76 IOC 0 L243

L248 26.21 -1. 50 -.76 2.03 1. 1 1 18.38 1.05 .84 1. 1 8 1.09 a oe 0 L248 L249 28.43 .72 .36 2.34 1.28 17.80 .48 .38 1.29 a. 19 IOC 0 L249

L261 26.60 -1. I 1 -.56 1.76 • 97 17. 03 -•29 -.23 1.09 1.01 1 oc 0 L261 L264 28.93 1.22 .61 1.10 .60 16.33 -.99 -.79 .82 .75 IOC 0 L264 L268 29.63 1.92 .97 1.75 .96 18.50 1. 16 .94 • 89 .82 1 oc 0 L268

L27 8 25.53 -2. 18 -1 .09 1.47 . 80 15.47 -1. 86 -1.48 • 97 .90 10C 0 L278

L279 27.30 -.41 -.21 2.19 1.20 1 7. 10 -.22 -.18 1.13 1.04 IOC 0 L279

L299 32.77 5.06 2.54 2.78 1. 52 1 8.67 1.34 1. 07 1.52 1.40 IOC 0 L299 L305 29.33 1.62 .82 1.60 .68 17.00 -.32 -.26 1.35 1.25 IOC 0 L305

L31 1 30. 13 2.42 1.22 2.17 1. 19 18.20 .88 .70 1.31 1.21 IOC 0 L31 1 L312 27.35 -. 36 -.18 1 .36 .74 17. 13 -.20 -. 16 .53 .49 IOC 0 L312

L315 29.97 2.26 1.13 2.70 1.48 18.70 1.38 1. 10 1.03 .95 IOC 0 L315

L32 1 32. 80 5.09 2.56 2.88 1. 58 17.40 .08 .06 2.18 2.01 IOC * L321 L326 25.50 -2.2 1 -1.11 2.28 1. 25 17.23 -.09 -.07 1. 10 1.02 IOC 0 L326

L33 0 25.81 -1.90 -.95 1.59 .87 16. 39 -.94 -.75 1.39 1. 28 IOC 0 L330

L331 51.37 23.66 11.89 2.55 1.39 37.07 19.74 15.75 2* 57 2.37 1 OC u L331 L333 26. 80 -.91 -.46 4.63 2. 53 16.47 -.86 -.68 2.59 2.39 IOC 0 L333 L339 15.97 - 11. 74 -5.90 • 40 • 22 10.67 -6.66 -5.31 .75 .69 1 OC tt L339

L344 28.70 .99 .50 2.23 1. 22 15.23 -2.09 -1.67 1.16 1.07 1 oc 0 L344

L356 26. 20 -1.51 -.76 1.25 .68 17.60 .28 .22 1.50 1.38 1 OC 0 L3 56 L358 28. 16 • 45 .23 1.37 • 75 16.50 -.82 -. 66 1.02 .94 IOC 0 L358

L36 0 27.37 -.34 -.17 .79 .43 18.90 1.58 1.26 • 91 .84 IOC 0 L360 L390 28.33 .62 .31 1.53 • 84 17.97 .64 .51 .64 .59 IOC 0 L390

L56 8 28. 00 .29 . 15 1.61 .99 17.87 • 54 .43 1.46 1. 35 IOC 0 L568

L59 9 27. 34 -•37 -. 19 1.42 • 78 18. 17 . 85 .68 .65 .79 IOC 0 L599

L684 26.00 -1.71 -.86 1 .88 1. 03 14.77 -2.56 -2. 04 1. 13 1.05 1 oc 0 L6 84

GR. MEAN - 27.71 PSI GRAND MEAN - 17.32 PSI TEST DETERMINATIONS - 15 SD MEANS - 1.99 PSI SD OF MEANS - 1.25 PSI 41 LABS IN GRAND MEANS AVERAGE SDR - 1.83 PSI AVERAGE SDR - 1.08 PSI

GR. MEAN 191.1 KILePASCAL GRAND MEAN • 1 19.4 KILOPASCAL

Li 28 27.80 .09 .05 1.52 . 83 18. 87 1.54 1.23 • 99 .91 10B L 1 28 L219 27.22 -.49 -.25 2.40 1*31 17.07 -.25 -.20 1.32 1.22 1 OT L219

L242 29. 72 2.0 1 1.01 2.14 1.17 19.75 2.43 1.94 1.24 1.15 10T L242 L250L 26.78 -.93 -.47 1.72 • 94 18. 51 1.19 • 95 .77 .71 ION L250L

L251 25.86 -1. 85 -.93 1.44 • 79 18. 17 .85 • 68 1.83 1.69 iov L251 L269 31.73 4.02 2.02 1.79 O' 00 • 22.33 5.01 * o o 1.59 1.47 10A L269 TOTAL NUMBER OF LABORATORIES REPORTING - 49

Best values: K37 27.5 + 3.7 psl

J87 17.4 + 2.2 psl

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

331, 339.

5
REPORT NO. 58S TAPP I COLLABORATIVE REFERENCE PROGRAM ANALYSIS TiO-1 TABLE 2 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTH OF PAPER - PERKINS MODEL C

FEBRUARY 1979

LAB MEANS C00RD INATES AVG CODE F K37 J87 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L339 U 15.97 10.67 -13.44 -1.21 .45 IOC BURSTING STRENGTH UP 70 45 PSI, PERKINS c. MANUAL CLAMP

L13 1 o 22.73 14. 93 -5.52 -.12 1.25 IOC BURSTING STRENGTH UP T0 45 PSI, PERKINS c. MANUAL CLAMP

L19 1 * 23.80 14. 13 -4. 88 -1.29 • 84 IOC BURSTING STRENGTH u? T0 45 PSI, PERKINS c. MANUAL CLAMP

L3 26 0 25.50 17.23 -2.05 .63 1. 13 IOC BURSTING STRENGTH UP TO 45 PSI. PERKINS C. MANUAL CLAMP

L27 8 0 25.53 15.47 -2.75 -.79 .85 IOC BURSTING STRE .GTH UP TO 45 PSI. PERKINS C, MANUAL CLAMP

L330 o 25.81 16.39 -2. 1 1 -.07 1.08 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L251 25.86 18. 17 -1.33 1.54 1.24 10V BURSTING STRENGTH UP TO 45 PSI, L*W, MANUAL CLAMP, 20C.65* RH L684 0 26.00 14.77 -2.61 -1.62 1.04 IOC BURSTING STRENGTH UP TO 45 PSI. PERKINS c. MANUAL CLAMP

L356 6 26.20 17.60 -1.26 .88 1.03 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L24 8 0 26.21 18.38 -.93 1.58 1.10 10E BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 6 7 0 26.23 16. 60 -1.57 .14 .65 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 2 1 0 26.58 17.77 -.65 .87 • 62 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L26 1 O 26.60 17.03 -1. 13 .20 .99 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L243 0 26.67 18.90 -. 30 1.87 • 81 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L250L 26.78 18.51 -.36 1.47 . 83 ION BURSTING STRENGTH UP TO 45 PSI. LHOMARGY, MAN •CLAMP, 20C , 65 %RH

L333 0 26.80 16. 47 -1.18 -.40 2. 46 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L237B 0 26.80 17.93 -. 58 .93 • 53 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L23 7A 0 27.00 16. 73 -.89 -.24 .62 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

LI 5 0 0 27.20 18. 33 -.05 1.13 • 92 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L219 27.22 17.07 -.55 -.02 1.27 1 0 T BURSTING STRENGTH UP TO 45 PSI, L^W, MANUAL CLAMP

L279 0 27.30 17. 10 -.47 -.03 1.12 IOC BURSTING STRENGTH UP TO 45 PSI , PERKINS c. MANUAL CLAMP

L20 7 0 27.33 17.20 -.39 .04 1.03 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L599 0 27.34 18. 17 .01 .93 .78 IOC BURSTING STRENGTH UP T0 45 PSI , PERKINS c. MANUAL CLAMP

L312 0 27.35 17. 13 -.41 -.03 o 6 1 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L360 0 27.37 18.90 o 34 1.58 • 64 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

LI 83 0 27.63 17.77 • 11 .44 • 82 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 2 8 27.80 18. 87 .72 1.37 • 87 10B BURSTING STRENGTH UP TO 45 PSI, PERKINS fl. MANUAL CLAMP

Li 58 0 27.80 16.33 -.33 -.94 1 • 26 1 oc BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L232 0 27.90 17.43 • 22 .02 1.11 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L56 8 0 28.00 17. 87 o 49 .38 1.17 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L358 0 28. 16 16.50 .07 -.93 • 85 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 53 0 28.17 17.57 • 52 .03 1. 03 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L22 5 0 28.23 18. 30 • 88 .67 1. 16 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L212 0 28.30 17. 83 .75 .22 1.18 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L39 0 0 28.33 17. 97 .83 .33 .71 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L24 9 0 28.43 17. 80 . 86 . 14 1.24 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L344 0 28.70 15.23 • 04 -2.31 1. 15 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L26 4 0 28.93 16. 33 • 71 -1.41 .68 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

Li 3 4 0 29.20 16. 87 1. 17 -1.03 .83 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L305 0 29.33 17.00 1.35 -.96 1.06 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L268 0 29.63 18.50 2.24 .28 .89 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L242 29.72 19.75 2.84 1.38 lo 16 10T BURSTING STRENGTH UP TO 45 PSI , L*W, MANUAL CLAMP

L31 5 0 29.97 18. 70 2.62 .32 1.22 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L31 i 0 30. 13 18. 20 2.57 -.20 1.20 1 OC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L223A fi- 31.33 20. 57 4.64 1.46 • 99 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L269 31.73 22.33 5. 73 2.90 1.22 10 A BURSTING STRENGTH UP TO 45 PSI. PERKINS A. MANUAL CLAMP

L2S 9 0 32.77 18.67 5. 16 -.86 1.46 IOC BURSTING STRENGTH UP TO 45 PSI , PERKINS C, MANUAL CLAMP

L32 1 * 32.80 17.40 4.67 -2.03 1. 80 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L331 tt 51.37 37.07 29.70 8.21 1. 88 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP GMEANS : 27.71 17.32 1.00 95* ELLIPSE: 5.51 2.52 WITH GAMMA 24 DEGREES

6
KILQPflSCRL

100

1

10

120

130

140

150

160

170

BURSTING STRENGTH M0DEL C

SAMPLE K37 = 27.7 PSI SAMPLE J87 = 17.3 PSI

SAMPLE K37 = 191 K I L0PASCAL SAMPLE J87 = 119 K I L0PASCAL

PSI

I

1 1 1 1 1 1 1 1 1

! 140 150 160 170 180 190 200 210 220 230 240

KIL0PRSCRL

7
REPORT Nflo 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS TIO-2 TABLE 1 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTH OF PAPER - PERKINS MODEL C-A OR C WITH AIR OR HYDRAULIC CLAMPS

SAMPLE PRINTING SAMPLE PRINTING TEST D.

15 LAB K37 75 GRAMS PER SQUARE METER J 87 76 GRAMS PER SQUARE METER

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

L100 27.82 .56 .27 1 *30 .70 19.02 1.40 .73 1,09 1.03 10D 0 L100

LI 05 26.40 — . 86 -.41 4.95 2.65 13.93 -3.68 -1.90 1 • 53 1.45 10D e LI 05

LI 06C 26.93 -•32 -.16 .68 .47 1 8. 40 .78 .41 • 63 .60 10D 0 L106C

LI 1 8 27.87 .61 .29 1.73 .92 19.70 2. 08 1. 08 1*02 .96 10D e LI 18

LI 2 2 25.60 -1.66 -.60 2. 13 1.14 17. 87 .25 .13 1 • 06 1.00 1 OF 0 L122

LI 25 24.40 -2.86 -1.38 3.08 1.65 14.23 -3.38 -1.75 1.25 1.18 10D o LI 25

LI 4 1 27.59 • 34 .16 1.74 .93 18.34 • 72 .37 1*04 .99 10D e L141

LI 4

29.40 2« 14 1.03 1 9 59 .85 18.80 1.16 .61 1«01 .96 10D o LI 48

LI 57 28.90 1.64 .79 1.75 .94 19.93 2.32 1.20 .50 .47 10D 6 LI 57

LI 59 24.08 -3. 17 -1.53 1.37 .73 16. 10 -1.51 -.78 1 • 09 1.03 10D 0 LI 59

LI 62 27.80 • 54 .26 1.08 . 58 16.00 -1.62 -. 83 • 85 .80 10D 0 L162

LI 6 3 27.80 • 54 .26 2.80 1. 49 17.20 -•42 -.21 1.24 1. 17 10D 0 LI 63

LI 66 31.30 4. 04 1.95 1. 59 . 85 19.77 2.15 1. 11 1.08 1.02 10D 0 LI 66

LI 85 30.60 3.34 1.61 1.39 .74 19.63 2.02 1.04 .90 .05 10D 0 LI 85 L190C 25.73 -1.52 -.73 1.53 .82 17. 13 -.48 -.25 1 • 06 1.00 10D 0 L190C

L190R 27.33 • 08 .04 2.02 1.08 18.20 .58 . 30 • 94 .89 10D 0 L190R

LI 926.99 -.26 -.13 1.10 .59 1 8.96 1 • 34 .69 • 68 .64 10D 0 LI 94 L226B 28.23 .98 .47 2.70 1. 44 18.57 .95 .49 1*18 1. 11 10D 0 L226B

L226C 29.80 2.54 1 .23 1.28 .68 18.73 1.12 . 58 1.27 1.20 10D 0 L226C

L233 26.42 -.84 -.40 1.79 .95 17.79 .17 .09 • 78 .74 10D 0 L233

L24 1 28.20 • 94 .46 1.76 .94 19.25 1.64 . 85 1 9 00 .95 10D 0 L24

L255 26.27 -.99 -.48 .96 .51 1 8. 80 1.16 .61 • 86 .81 10D 0 L2S5

L257A 27.00 -.26 -.12 1.77 .95 1 8.53 • 92 .47 1 • 25 1.18 10D 0 L257A

L257B 27.93 .68 .33 1.16 .62 18.27 .65 .34 • 88 .84 10D 0 L257B

L257C 28.27 1.01 .49 lo 58 .84 18.27 .65 .34 1« 10 1.04 10D 0 L257C

L262 28.00 • 74 .36 1.63 .87 18.67 1.05 . 54 1. 19 1. 13 10D 0 L262

L27 5 24. 15 -3. 1 1 -1.50 2.23 1. 19 13.92 -3.70 -1.91 1,39 1.31 10D 0 L275

L2 8 0 28.43 1. 1 8 .57 2.16 1. 15 19.59 1.98 1.02 1.03 .97 10D 0 L2 80

L2 85 30.73 3.48 1.68 2.65 1.42 16.87 -.75 -.39 1.11 1.05 10D « L285

L30 9 29.67 2.41 1.16 2.95 1.57 18. 19 .58 .30 1.44 1. 36 10D 0 L309

L352 25. CO -2.26 -1.09 • 89 .48 16. 63 -.98 -.51 • 67 .63 10D 0 L352 L563 22.86 -4.39 -2.12 1.47 .79 14. 26 -3.36 -1.74 1.48 1.40 10U 0 L563

L56 7 24.07 -3.19 -1.54 2.34 1.25 15.73 -1.88 -.97 • 86 .82 10D 0 L567

L575 28.94 1.68 .81 2.27 1.21 19. 55 1.93 1.00 1.15 1.09 10D 0 L575

L58 1 26. 80 -.46 -.22 3.05 1.63 17.07 -.55 -.28 1*49 1.41 1 OD 0 L581 L587 27.80 .54 .26 1.47 .79 17.90 • 28 .15 1.06 1.00 10D 0 L587

L652 23.33 -3.92 -1.89 3.01 1.61 11.97 -5.65 -2.92 1 • 04 .99 1 OD » L652

GR. MEAN 27.26 PSI GRAND MEAN - 17.62 PSI TEST DETERMINATIONS * 15 SD MEANS • 2. 07 PSI SD 6F MEANS * 1.93 PSI 37 LABS IN GRAND MEANS

GR, MEAN AVERAGE

187.9 KILOPASCAL

,87 PSI GRAND MEAN AVERAGE SDR 121.5 KILOPASCAL

1.06 PSI TOTAL NUMBER OF LABORATORIES REPORTING

Best values: K37

J87 27.3

17.7

3.3 psi

2.5 psi

8
REPORT NO. 58S TAPP1 COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T10-2 TABLE 2 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS-76. BUfiSTING STRENGTH 0F PAPER - PERKINS MODEL C -A <0R C WITH AIB 0B LAB MEANS C00RDINA7ES AVG CODE F K37 J87 MAJOR MINOR R. SDR VAR PROPERTY— -TEST INSTRUMENT * CONDITIONS

L563 0 22.66 14.26 -5. 51 .48 1.09 I0U BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

L652 • 23.33 11.97 -6.70 -1 .53 1.30 10D BURSTING STRENGTH UP TO 45 PSI. PERKINS CA

L567 0 24.07 15.73 -3.62 .76 1.03 10D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 59 0 24.06 16. 10 -3.36 1 .02 .88 I0D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

L275 O 24. 15 13.92 -4. 79 -.64 1.25 10D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 2 5 e 24.40 14. 23 -4.39 -.58 1.41 10D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

L3 52 e 25.00 16.63 -2.33 .79 .56 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 22 0 25.60 17.67 -1.05 1.30 1.07 1 OF BURSTING STRENGTH UP TO 45 PSI, PERKINS 13. 1 L190C 0 25.73 17.13 -1.45 .67 .91 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA L255 0 26.27 16.80 .07 1.54 .66 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 05 0 26.40 13. 93 -3. 1

-2.15 2.05 I0D BURSTING STRENGTH UP TO 45 PSI. PERKINS CA

L233 0 26.42 17.79 -.50 .69 .85 1 0 D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

L50 1 0 26.80 17.07 -.71 -.10 1.52 1 OD BURSTING STRENGTH UP TO 45 PSI. PERKINS CA L106C 0 26.93 16.40 .29 .80 .53 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 94 0 26.99 18.96 .71 1.17 .61 1 OD BURSTING STRENGTH UP TO 45 PSI, PBRKINS CA L257A 0 27.00 18. 53 .43 . 85 1.06 10 D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 9 OP 0 27.33 16.20 .45 .38 .99 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 4 1 0 27.59 18.34 .74 .31 .96 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

L567 0 27.60 17.90 . 59 -.16 .89 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 63 0 27.60 17. 20 . 12 -.67 1.33 1 OD BURSTING STRENGTH UP TO 45 PSI. PERKINS CA

LI62 0 27.80 16. 00 -.69 -1.56 .69 10D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 00 0 27.82 19.02 1.36 .66 .86 10D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 1 0 0 27.87 19.70 1.86 1.13 .94 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA L257B 0 27.93 18. 27 .94 .02 .73 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

L262 0 26.00 18.67 1.26 .28 1.00 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

L24 1 0 26.20 19.25 1.80 .57 .94 10 D BURSTING STRENGTH UP TO 45 PSI. PERKINS CA L226B 0 26.23 18. 57 1.36 .04 1.28 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA L257C 0 26.27 18. 27 1. 19 -.20 .94 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA L20O 0 28.43 19.59 2.20 .67 1.06 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 57 0 28.90 19.93 2.78 .61 .70 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

L57 5 0 26.94 19.55 2.55 .29 1.15 10D BURSTING STRENGTH UP TO 45 PSI. PERKINS CA

LI 4 0 0 29.40 18.80 2.38 -.57 .91 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA L309 0 29.67 18. 19 2. 17 -1.20 1.47 1 OD BURSTING STRENGTH UP TO 45 PSI. PERKINS CA

L226C 0 29.60 18.73 2. 63 -.89 .94 1 OD BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 05 0 30.60 19.63 3. 83 -.76 .79 1 OD BURSTING STRENGTH UP TO 45 PSI

PERKINS CA L205 * 30.73 16. 87 2.07 -2.90 1.23 10D BURSTING STRENGTH UP TO 45 PSI, PERKINS CA

LI 66 0 31.30 19.77 4.44 -1. 13 .94 1 OD BURSTING STRENGTH UP TO 45 PSI. PERKINS CA GMEANS

27.26 17.62 1.00 95* ELLIPSE: 6.87 2.62 KITH GAMMA - 42 DEGREES

HYDRAULIC CLAMPS

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C. AIR CLAMP

1. CLAMP , TRANSDUCER

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C. AIR CLAMP

OR C, AIR CLAMP

OB C, AIR CLAMP

OR C, AIR CLAMP

OR C. AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C. AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OB C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C, AIR CLAMP

OR C. AIR CLAMP

OR C, AIR CLAMP

9
KIL0PRSCRL

100

1

10

120

130

140

150

160

170

BURSTING STRENGTH, MODEL C-fl

o

CD

O

CD

O

rSAMPLE K37 = 27.3 PSI

SAMPLE K37 = 188 K I L0PASCAL

SAMPLE J87 = 17.6 PSI

SAMPLE J87 = 121 K I L0PASCAL

140 150 160 170 180 190 200 210 220 230 240

KIL0PRSCRL

10
REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS Hl-1 TABLE 1 BURSTING STRENGTH, HIGH RANGE, PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTH 6F PAPER - PBRSINS MODEL C OR C-A

SAMPLE PRINTING

LAB H41 151 GRAMSi PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SBR L100 53. 5 -1.0 -.54 2.8 1.03

LI 03 57*2 2.7 1.51 1.7 • 65

LI 07 57.2 2.7 1 .4 8 3.9 1.44

LI 1 8 56.9 2.4 1 .32 2.2 .84

LI 22 53.0 -1.5 -.84 3.4 1.25

LI 28 54.7 . 1 .08 2.3 .66

LI 4 1 54.7 . 1 .08 3.2 i. 19

LA 48 57.5 2.9 1.63 2.6 • 97

LI 59 51.2 -3.3 -1.84 2.4 . 90

LI 70 54.7 . 1 .08 3.4 1.27

LI 82 54.8 .3 . 16 2. 1 .77

L2I 8 55.3 .a .43 3.9 1. 44

L232 49.3 -5.3 -2.90 3.4 1.28 L237A 54.1 -.4 -.21 2.4 .88

L2.37B 56.2 1.7 .93 1.3 .47

L23 8A 56.4 1.9 1.03 2.4 .88 L243 53.3 -1.2 -.65 2.7 1.02 L24 8 52.8 -1.7 -.92 3.0 1. 10 L27 8 51.9 -2.6 -1.43 2.7 .99 L279 56.3 1.8 1.C0 2.7 1.01 L280 55.9 1.4 .76 2.4 • 9A L33 0 54.0 -.6 -.31 2.4 .91

L33 1 35.3 -19.3 - 10.64 1.2 .46

L333 55.7 1.2 .67 3.2 1. 17 L344 55. 4 .9 .51 1.6 .60

L356 55.2 .7 .40 2. 1 . 77 L56 7 53.7 -.8 -.45 2.8 1.03 L575 54.8 .3 .15 2. 8 1. 04

L5 8 1 52.4 -2. 1 -1.17 3.4 1.27

L59 9 55.0 .5 .26 3.7 1.38 L604 52.2 -2.3 -1.28 3.7 1.37 L622 50.7 -3.9 -2.14 2.7 1.01 L65 0 55.5 .9 .52 2.3 .84

L6 5 I 62.7 8. 1 4.50 3.7 1. 38

L6 8 0 52.3 -2.3 -1.24 2.7 .99

GR. MEAN • 54.5 PSI GRAND MEAN

SD MEANS - 1.8 PSI SB OF MEANS AVERAGE SDR * 2.7 PSI

GR. MEAN - 375.9 KILOPASCAL GRAND MEAN

L242 58.0 3.5 A • 93 2.3 .86

L25 0L 51.9 -2.7 • I • 47 1.7 .62

L25 1 58.3 3. 8 2 . 09 3.3 1.25 L290 58. 1 3.6 2 • 00 2.2 . 83 L393 55.9 1.3 .75 2.6 .95

L394 67. A 12.5 6.94 4. 1 1.51 L565 7.2 -47.3 - 26. 16 .3 .10

L570 56.9 2.3 1.30 2.0 .74

L576 57.7 3.2 A. 78 2.5 .93 TOTAL NUMBER OF LABORATORIES REPORTING • 44

Best values: H41 54+3 psl

B56 38+3 psi

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

232, 331.

SAMPLE BROWN KRAFT TEST D.’ as B56 76 GRAMS PER SQUARE METER

MEAN DEV N® DEV SDR R. SDR VAR F LAB

39.9 1,3 .57 2. 1 .71 1 AD 6 Li 00 40.9 2.3 A. 04 1.8 .60 A AC 0 L 1 03 43.0 4.4 1.97 4.9 1.60 1 1C 0 L ?. 07 39.8 1.2 .56 2.7 .90 A AD 0 LA 18 37.9 -.7 -.32 2.9 .94 A IF 0 LI 22 38.7 . 1 .07 1.5 .49 A ID 0 LIES

36.9 -1.7 -.74 2.8 .92 1 AD 0 L 1 4 1 40.9 2.3 A. 02 3.2 1.05 A AD 6 LI 48 35.2 -3.4 -A. 51 3.0 ,99 A AD 0 LI 59 43.8 5.2 2.32 3.2 1.06 1 AC « LI 70 40.3 1.7 .75 2.2 .73 1 AD 0 LI 82 38.0 -.6 -.26 3.0 .97 A AD 0 L218

27. 1 -11.5 -5. 12 3.9 1.28 A AC a L232

41.8 3.2 1.44 3.2 1.05 1 AC 0 L237A

38.9 .3 . 13 1.9 .63 A 1C 0 L237B

39.2 .6 .27 3. 9 1.30 A AY 0 L238A

37.2 -1.4 -.62 3. 1 1.04 l AC 0 L243

37.8 -.8 -.35 2.7 .90 A IE 0 L24 8 36.8 -1.6 -.81 2.8 .91 1 AC 0 L278

38.0 -.6 -.25 4.2 1.39 A AC 0 L279 40.0 1.4 .65 3.3 1.10 A ID 0 L2 80 37.5 -1. 1 51 3.6 1 .19 A AC 0 L330

40.4 1.8 .81 1.0 .33 1 AC ft L331 38.4 -.2 -. 08 5.4 1.80 1 1C 0 L333

38.0 -.6 -.28 3. 0 .99 1 1C 0 L344 38.2 -.4 -. 19 2.0 .67 1 AC 0 L356

36.3 -2.3 - 1. 01 3.4 1.13 AID 0 L567

39.9 1.3 .58 3.9 1.27 A ID 0 L575

33.5 -5. 1 -2. 26 2.7 .91 1 AD 6 L581 39.2 .6 .27 3.2 1.04 1 1C 0 L5 99 35.0 -3.6 -1.59 4.5 1 .48 1 1C 0 L604

36.3 ”2.3 -1.02 2.3 .75 1 IE 0 L622

40.5 1.9 .84 2.5 .83 1 ID 0 L650

45.3 6.7 2.99 2.8 .92 1 AD X L65

1

37. 1 -1.5 -.68 2.1 .70 A ID 0 L6 80 38.6 PSI TEST DETERMINATIONS • 15 2.2 PSI 32 LABS IN GRAND MEANS AVERAGE SDR » 3.0 PSI 266.0 KILOPASCAL

41.2 2.6 1. 18 2.9 .95 A IT L242 37.7 -.9 -.42 2.5 .82 A AN L250L

40.2 1.6 .73 3.9 1,29 1 IV . L251 42.9 4.3 1.94 3. 1 1.02 1 AA L290

39.6 1.0 .45 2.2 .74 1 AH •» L393

51.5 12.9 5.76 4.0 1.31 A AH . L394

5.3 -33.3 -14.89 .4 .13 A AT L565

39. 1 .5 • 21 2.8 ,92 A 19 L570

41.6 3.0 1.33 2.6 . 86 A IP L5 76

11
REPORT N0. S8S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS Tll-1 TABLE 2 BURSTING STRENGTH. HIGH RANGE. PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTH OF PAPER - PERKINS MODEL C OR C-A COORDINATES AVG CODE F H41 B56 MAJ0K MIN0R E. SDR VAR PR6PERTY-- -TEST INSTRUMENT—

CONDITIONS

L565 7.2 5.3 -54.8 18.6 .11 1 IT BURSTING STRENGTH 40 • too PSI , L-W, MANUAL CLAMP

L331 H 35.3 40.4 -9.9 16.6 .39 11C BURSTING STRENGTH 40 - 100 PSI, PERKINS c. MANUAL CLAMP

L2.32 * 49.3 27.1 -12.3 -2.5 1.28 UC BURSTING STRENGTH 40 - 100 PSI, PERKINS C. MANUAL CLAMP

L622 0 50.7 36.3 -4. 1 1.8 .88 HE BURSTING STRENGTH 40 - 100 PSI, PERKINS C. MANUAL CLAMP

LI 59 e 5 1.2 35.2 -4.7 .7 .95 11D BURSTING STRENGTH 40 - 100 PSI, PERKINS CA, AIR CLAMP

L250L 51.9 37.7 -2.3 1.6 .72 1 1

BURSTING STRENGTH 40 . 100 PSI, LH0MARGY,, MAN. CLAMP,, 20C,< L27 8 0 51.9 36. 8 -3.0 1.0 .95 11C BURSTING STRENGTH 40 - 100 PSI, PERKINS c. MANUAL CLAMP

L604 0 52. 2 35.0 -4.2 -.2 1.42 HC BURSTING STRENGTH 40 - 100 PSI, PERKINS C. MANUAL CLAMP

L68 0 0 52.3 37.1 -2.6 .9 .85 1 ID BURSTING STRENGTH 40 - 100 PSI. PERKINS CA. AIR CLAMP

L5 81 0 52.4 33.5 -5.3 -1.3 1.09 1 ID BURSTING STRENGTH 40 - 100 PSI, PERKINS CA. AIR CLAMP

L24 8 0 52.8 37.8 -1.6 .9 © o o 11E BURSTING STRENGTH 40 - 100 PSI, PERKINS c. MANUAL CLAMP

LI 22 O 53.0 37.9 -1.5 .8 1.10 11F BURSTING STRENGTH 40 L243 O 53.3 37.2 -1.8 .1 1.03 11C BURSTING STRENGTH 40 L100 0 53.5 39.9 .5 1.5 .87 11D BURSTING STRENGTH 40 L567 0 53.7 36.3 -2.3 -.7 1.08 11D BURSTING STRENGTH 40

• 100 PSI. PERKINS C. H. CLAMP, TRANSDUCER

- 100 PSI, PERKINS C. MANUAL CLAMP

- 100 PSI. PERKINS CA, AIR CLAMP

- 100 PSI, PERKINS CA, AIR CLAMP

L330 O 54.0 37.5 -1.2 -.2 1.05 11C BURSTING STRENGTH 40 - 100 PSI, L237A 0 54.1 41.8 2.4 2.2 .97 11C BURSTING STRENGTH 40 - 100 PSI,

LI 7 0 « 54.7 43.8 4.3 2.9 1.16 11C BURSTING STRENGTH 40 - 100 PSI,

LI 4 1 0 54o 7 36.9 -1.2 -1.1 1.05 HD BURSTING STRENGTH 40 - 100 PSI,

LI 28 0 54.7 38.7 .2 -.0 .68 11D BURSTING STRENGTH 40 - 100 PSI,

PERKINS C, MANUAL CLAMP

PERKINS C, MANUAL CLAMP

PERKINS C, MANUAL CLAMP

PERKINS CA, AIR CLAMP

PERKINS CA, AIR CLAMP

L575 0 54.8 39.9 1.2 .6 1.16 11D BURSTING STRENGTH 40

LI 82 0 54.8 40.3 1.5 .8 .75 11D BURSTING STRENGTH 40 L599 0 55.0 39.2 .8 -.0 1.21 11C BURSTING STRENGTH 40 L356 0 55.2 38.2 .1 -.8 .72 11C BURSTING STRENGTH 40 L218 0 55.3 38.0 -.0 -1.0 1.21 11D BURSTING STRENGTH 40

100 PSI, PERKINS CA, AIR CLAMP

100 PSI. PERKINS CA. AIR CLAMP

100 PSI, PERKINS C, MANUAL CLAMP

100 PSI.

ICO PSI, PERKINS C, MANUAL CLAMPPERKINS CA, AIR CLAMP

L344 0 L650 0 L333 0 L393

L2 8 0 0

55.4 38.0 .0 -1.1 .79 11C BURSTING STRENGTH 40 55.5 40.5 2.1 .3 .84 11D BURSTING STRENGTH 40 55.7 38.4 .6 -1.1 1.49 11C BURSTING STRENGTH 40

55. 9 39.6 1.6 -.5 .85 11H BURSTING STRENGTH 40

55. 9 40.0 2.0 -.3 1.01 11D BURSTING STRENGTH 40

100 PSI, PERKINS C, MANUAL CLAMP

100 PSI, PERKINS CA, AIR CLAMP

100 PSI, PERKINS C, MANUAL CLAMP

100 PSI, PERKINS AH, HYDRAULIC CLAMP

100 PSI. PERKINS CA, AIR CLAMP

L237B 0 56.2 38.9 1.2 -1.2 .55 11C BURSTING STRENGTH 40 L279 0 56.3 38.0 .6 -1.8 1.20 11C BURSTING STRENGTH 40 L238A 0 56.4 39.2 1.6 -1.2 1.09 11Y BURSTING STRENGTH 40

L57 0 56.9 39.1 1.8 -1.6 .83 11H BURSTING STRENGTH 40

LI 1 8 0 56.9 39.8 2.4 -1.2 .87 11D BURSTING STRENGTH 40

100 PSI. PERKINS C, MANUAL CLAMP

100 PSI, PERKINS C, MANUAL CLAMP

100 PSI, PERKINS CA, AIK CLAMP

100 PSI, PERKINS AH, HYDRAULIC CLAMP

100 PSI, PERKINS CA, AIR CLAMP

LI 07 0 57 . 2 43.0 5.1 .4 1.52 11C BURSTING STRENGTH 40

LI 03 0 57.2 40.9 3.5 -.8 .62 11C BURSTING STRENGTH 40

LI 4 8 0 57.5 40.9 3.6 -1.0 1.01 11D BURSTING STRENGTH 40 L576 57.7 41.6 4.3 -.8 .90 IIP BURSTING STRENGTH 40

L242 58.0 41.2 4.2 -1.3 .91 11T BURSTING STRENGTH 40

100 PSI, PERKINS C, MANUAL CLAMP

100 PSI, PERKINS C, MANUAL CLAMP

100 PSI, PERKINS CA, AIR CLAMP

100 PSI, PERKINS LC. MANUAL CLAMP

100 PSI, L-W, MANUAL CLAMP

L290 58.1 42.9 5.6 -.4 .92 11A BURSTING STRENGTH 40 - 100 PSI.

L251 58.3 40.2 3.5 -2.1 1.27 11V BURSTING STRENGTH 40 - 100 PSI, L651 X 62.7 45.3 10.2 -2.7 1.15 11D BURSTING STRENGTH 40 - 100 PSI, L394 67.1 51.5 17.8 -2.6 1.41 11H BURSTING STRENGTH 40 - 100 PSI.

PERKINS A, MANUAL CLAMP

L-W, MANUAL CLAMP, 20C.6S* RH PERKINS CA. AIR CLAMP

PERKINS AH, HYDRAULIC CLAMP

GMEANS: 54.5 38.6

95* ELLIPSE:

1.00 WITH GAMMA 53 DEGREES

12
KIL0PASCAL

220

240

260

280

300

320

BURSTING STRENGTH, HIGH RANGE

SAMPLE H 4 1 = 54.5 PSI SAMPLE B56 = 38.6 PSI

SAMPLE H41 = 376 K I L0PASCAL SAMPLE B56 = 266 K I L0PASCAL

PSI

i

1 1 1 1 1 1 1 1 i

1 r

330 350 370 390 410 430

KIL0PRSCRL

13
REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T15-1 TABLE 1 TEARING STRENGTH, GRAMS

TAPPI STANDARD 1414 TS-65. ANY MAKE ELMENDORF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

SAMPLE BOND LAB Ees 79 GRAMS PER SQUARE METER

C0DE MEAN DEV N. DEV SDR R. SDR

L100 39.47 -.28 -.14 • 72 .59

Li 03 39.20 -.55 -.28 • 77 .63

LI 05 41.33 1.59 .81 2.79 2.29

LI 07 41.07 1.32 .68 2.37 1.95

LI 1 8 38.00 -1.75 -.89 • 93 .76

LI 2 1 37.73 -2.01 1 • oCJ 1.28 1.05

LI 22 39.95 .20 .10 1.08 . 88

LI 24 39.80 .05 .03 1.48 1.21

LI 26 39.40 -.35 -.18 1. 12 .92

LI 2 8 40.00 .25 .13 1.07 .88

LI 3 1 40.40 .05 .33 1.55 1.27

LI 34 42. 13 2.39 1.22 1.30 1.07

LI 3 9 42.00 2.25 1.15 1.07 . 88

LI 4 1 37.93 -1. 81 -.93 1.10 .90

LI 4 3 43.33 3.59 1.84 1.59 1.30

LI 45 38.53 -1.21 -.62 1*19 .97

LI 4 8 40.67 .92 .47 .72 .59

LI 50 55.13 15.39 7.88 .52 .42

LI 5 1 49.20 9. 45 4.84 2. 24 1.84

LI 53 40. 13 .39 .20 • 92 .75

LI 57 39.07 -.68 -.35 • 96 .79

LI 58 37.33 -2.41 -1.24 2.09 1.72

L 1 59 44.37 4.63 2.37 8.93 7.32

LI 62 39.87 .12 .06 1.41 l. 15

LI 63 33.33 -6.41 -3.29 1.88 1.54

LI 66 39.80 .05 .03 .77 .63

LI 6 7 40. 40 .65 .33 1.55 1.27

LI 7 0 35.53 -4.2 l -2. 16 1.41 1.15

LI 73B 38.93 -.81 -.42 .70 .58

LI 82A 39.40 -.35 -.18 1.68 1.38 L182T 41.80 2.05 1.05 .94 .77

LI 83 39.53 -.2 1 -. 1 1 .92 .75

LI 85 42.40 2.65 1.36 1.06 .87

LI 8

9

40.53 .79 .40 • 83 .68 L190C 37.47 -2.28 -1.17 .92 .75

L190R 38.93 -.81 -.42 1 .62 1.33

LI 9 1 43.20 3.45 1.77 1.26 1.04

LI 94 44.23 4.49 2.30 2.40 1.96

L2 06 40.40 .65 .33 1.18 .97

L207 49.44 9.69 4.97 5.09 4. 17

L21 1 39.00 -.75 -.38 2.24 1.83 L212 42.67 2.92 1 .50 3.27 2.68

L213 40.87 1.12 .57 1.25 1. 02 L2I9 41 .07 1.32 .68 1.28 1. 05 L223 41.33 1.59 .81 1.04 . 86 L225 41.53 1.79 .92 1.30 1.07 L226B 20.20 -19.55 - 10.01 .59 .48 L226C 38.00 -1.75 -.89 1.31 l. 07 L228 38.13 -1.61 -• e3 • 52 .42 L230 37.00 -2.75 -1.41 .65 .54

L232 40. 13 .39 .20 2.88 2. 36 L233 43.47 3.72 1.91 .92 .75 L236 39.23 -.51 -.26 1 .08 .89 L237A 39.33 -.41 -.21 1.63 1.34 L237B 39.93 . 19 .10 1.10 .90 L238A 38.13 -1.61 -.83 1.13 .92

L24 I 4 1.20 1.45 .74 1.21 .99 L243 38.87 -.88 -.45 1.13 .92

L24 4 40.53 .79 .40 • 64 .52

L24 8 42.50 2.75 1.41 .92 .75 L249 42.87 3. 13 1.60 1.53 1.26

L25 4 37.73 -2.01 -1.03 1.49 1.22

L25 5 40.00 .25 . 13 .85 .69 L257A 40.80 1.05 .54 1 .26 1.04 L257B 41.07 1.32 .68 1.28 1. 05

SAMPLE

B96 HEAT91 GRAMS

SET OFFSET BOOK

PER SQUARE METER

TEST D.' 15 MEAN DEV N.DEV SDR R. SDR VAR F LAB

45.44 -1.54 • 62 .41 15M 0 LI 00 44.27 -2.71 -.95 • 96 .63 15T 0 LI 03 47.87 .89 .31 2.67 1.75 15T 0 LI 05 48.80 1.82 .64 2.70 1.78 15T 6 LI 07 46.00 -.98 -.34 1.69 1.11 15T 6 LI 18

44. 13 -2.84 -1.00 l. 19 .78 15T 0 Li 21 47.09 • 12 .04 1.33 . 88 1 5C G L 1 22 45.33 -1.64 -.58 1.45 .95 15T G L 1 24 46.73 -•24 -.09 2.02 1.32 15T G LI 26

45. 33 -1*64 -.58 • 82 .54 15T G L128 49.73 2.76 .96 1.98 1.30 15A G LI 31 49.80 2.82 .99 1.21 .79 15C G L 1 34 53.40 6.42 2.25 1.35 .89 15T * LI 39 44.93 -2.04 -. 72 1.58 1.04 15T 0 L 1 4

1

47.20 • 22 .08 1.15 .75 15T * L 1 43

45. 87 -1.11 -.39 1.60 1.05 15T 0 LI 45

46. 47 -.51 -. 18 1.46 .96 1ST 0 L 1 48 63.87 16.89 5.91 • 92 .60 1 5T ft L 1 50 58.60 11.82 4. 14 2.37 1.55 15C 0 LI 5

1

45.53 -1.44 -.51 1.36 .89 15C 0 LI 53 43.60 -3.38 -1. 18 1.35 .69 15T 0 L 1 57 47.60 • 62 .22 2.64 1.73 1 5R 0 L 1 58

57. 29 10.32 3.61 10.47 6.67 15L X LI 59 45.07 -1.91 -.67 1.03 .68 15T 0 LI 62 39.00 -7.98 -2.79 1.07 .70 1ST *• LI 63

45. 07 -1.91 -.67 1.10 .72 15T 0 LI 66

49. 07 2.09 .73 1.03 .68 1 5C 0 L 1 67

44. 93 -2.04 -.72 1.28 .84 15T * L 1 70

44. 13 -2.84 -1.00 .83 .55 15T 0 L173B

48.87 1.89 .66 1 o 92 1.26 1 5A 0 L182A

50. 13 3. 16 1.10 1*77 1.16 1 5T 0 LI 82T

46. 40 -.58 -.20 1.24 .82 1 5T 0 LI 83 48. 80 1.82 .64 .86 .57 1ST 0 LI 85 48.33 1.36 .47 1.23 .81 15T 0 LI 89 43.67 -3.31 -1. 16 • 82 .54 15T 0 L190C

44.60 -2.38 -.83 1.59 1.05 15C 0 LI 90R 50.80 3.82 1.34 1.66 1.09 15T 0 LI 91 51. 17 4. 19 1.47 • 82 .54 1ST 0 LI 94

46. 80 -.18 -.06 .86 .57 1ST 0 L206

50.96 3.98 1.39 4.84 3. 17 15R X L207

44. 87 -2.11 -.74 1*46 .96 15R 0 L21

1

58.53 11.56 4.04 8.02 5. 26 15T 0 L212 50.40 3.42 1.20 1.35 .89 1ST 0 L213

47.60 • 62 .22 2.03 1.33 15L 0 L2 19 48.49 1.52 .53 1.41 .93 15R 0 L223 50.40 3.42 1.20 • 91 .60 15T 0 L225 24.44 -22.54 -7. 89 2.28 1.49 1ST 4 L226B

45.60 -1.38 -.48 1 • 35 .89 15T 0 L226C

43.00 -3.98 -1.39 1.25 .82 15T 0 L228

43. 80 -3. 1 8 -1. 1 1 1.32 .87 15R 0 L230

45.73 -1.24 -.44 1.98 1.30 1ST 0 L232 50.00 3.02 1. 06 1.41 .93 15T 0 L233 46.33 -.64 -.23 1.63 1.07 1ST 0 L236

48. 00 1.02 .36 1.89 1.24 15T 0 L237A

49.47 2.49 .87 1. 13 .74 15T 0 L237B

44.20 -2.78 -.97 1.37 .90 1ST 0 L238A

49. 87 2.89 1.01 1.19 .78 15T 0 L24

1

46.73 -•24 -.09 1.44 .94 15T 0 L243

46.47 -•51 -. 18 1.25 .82 15C 0 L244 50.32 3.34 1.17 1.26 .83 1 5J 0 L248 48.87 1.89 .66 2.24 1.47 1ST 0 L249

46. 00 -.98 -.34 1.69 1.11 1ST 0 L254 45.80 -1.18 -.41 • 77 .51 1 5T 0 L255

50.93 3.96 1.38 1.28 .84 15C 0 L257A

50.40 3.42 1.20 1.55 1.02 15C 0 L257B 14
REPORT NO. 50S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS 115-1 TABLE 1 TEARING STRENGTH , GRAMS

TAPPI STANDARD 1414 TS-65, ANY MAKE ELMEND0RF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

SAMPLE BOND

LAB Ees 79 GRAMS PEE SQUARE METER

CODE MEAN DEV N. DEV SDR R. SDR L257C 40.40 .65 .33 i • 35 1. 1 1 L259 43.93 4. IS 2.15 1.16 .95

L261 38.73 -1.01 -.52 .80 .65

L26 2 39.00 -.75 -.38 . 65 • 54 L264 40.00 .25 . 13 2.62 2. 15 L268 39.40 -.35 -.18 .74 .60

L273 36.33 -3. 41 -1.75 1.88 1. 54 L27 5 39.93 .19 .10 1.03 . 85 L27 8 39.47 -.28 -. 14 .92 .75 L279 38.67 -1.08 -.55 1.11 .91 L280 39. 13 -.61 -.31 . 83 .68

L281 37.20 -2.55 -1.30 1.1 5 .94 L285 36.33 -3.41 -1.75 1.35 1. 1 0 L28 8 38.01 -1.73 -.89 1.12 .92

L29 0 41. 13 1. 39 .71 .83 .68

L29 1 40.73 .99 .51 2.05 1.68

L29 9 39.07 -.68 -.35 1.10 .90

L305 40.33 .59 .30 1.99 1.63

L3 0 9 40.20 .45 .23 1. 1 5 • 94

L31 1 40.27 .52 .27 1.03 .85 L312 38. 73 -1.01 -.52 .96 .79 L315 41.47 1.72 .88 1.25 1.02

L32 1 39.47 -.28 -. 14 2.07 1,69 L324 39.87 .12 .06 1.60 1.3 1 L328 38.37 -1.38 -.71 1.71 1.40

L331 25.93 -13.81 1 • o CD 2,22 1.82 L336 39.53 -.21 -.11 1 .06 .87

L344 40.80 1.05 .54 1.01 .83

L34 5 40.27 .52 .27 1.58 1.29 L352 40.95 1.20 .61 .96 .79

L35 8 42.53 2.79 1 .43 .83 .68

L36 0 40.73 .99 .51 .92 .76

L37 6 36.40 -3.35 -1.71 1.59 1.31 L382 49. e7 10.12 5.18 7.87 6.45

L388 42.87 3. 12 1.60 1.60 1.31 L390 37.87 -1.88 -.96 1.41 1. 15 L396M 38.20 -1.55 -.79 .77 .63

L44 2 40. 13 .39 .20 1.19 .97

L55 4 45.40 5.65 2.90 1.35 1. 1 1 L557 37.20 -2.55 -1.30 • 77 .63

L55 8 39.60 -.15 -.07 1.12 • 92 L559 40.07 .32 . 16 1.03 . 85 L562 37.73 -2. 01 -1.03 1.44 1. 18 L565 39.33 -.41 -.21 1.95 1. 60 L566 37.73 -2.01 -1.03 1 .28 1. 05 L567 59. 73 19.99 10.24 1.44 1.18 L57 4 46.27 6.52 3.34 1.49 1.22 L57 5 40.42 .67 .35 1.26 1. 03 L576 44.87 5. 12 2.62 2.75 2. 25 L58 0 38.00 -1.75 -.89 .76 .62

L58 1 40. 04 .29 .15 .73 • 60 L587 36.67 -3.08 -1.58 • 98 . 80 L596 10.80 -28.95 -14.83 1.70 1.39 L597 40.27 .52 .27 • 70 .58

L59 9 39.87 .12 .06 1.55 1.27 L600 42.00 2.25 1. 15 • 93 • 76 L604 48.27 8.52 4.37 1.49 1.22

L6 06 40.93 1. 19 .61 1 .03 • 85 L62 2 59.73 19.99 10.24 6.84 5.61

L62 6 38.40 -1.35 -.69 1.24 1.02

L65 1 8.53 -31.21 -15.99 • 52 .42 L652 35.07 -4.68 -2.40 2.25 1. 85 L654 35.60 -4.15 -2.12 .83 ,68 L670 45. 73 5.99 3,07 1.16 • 95 L679 38. 80 -.95 -.48 .68 .55

SAMPLE

B96 HEAT SET 0FFSET BOOK

91 GRAMS PER SQUARE METER TEST D. • 15 MEAN DEV N.DEV SDR R. SDR VAR F LAB 50.40 3.42 1.20 2,03 1.33 I5C 0 L257C

54.00 7.02 2.46 1.31 . 86 15T G L259

47. 13 • 16 .05 1.25 .82 1ST G L261 45.67 -1.31 -.46 1.45 .95 15T G L262

47.47 .49 . 1? 1,41 .92 15T G L264

44. 53 -2.44 86 • 92 .60 15T G L268

46.20 -.78 -.27 1,66 1.09 1 5T « L273

45.60 -1.38 -.48 1.68 1.10 15T 0 L275 45.47 -1.51 -o 53 1.60 1.05 15T G L278

46. 47 — ,51 -. 18 1.73 1.13 15T G L279

46.60 -.38 -.13 1.12 .74 15L G L280

42. 00 -4.98 -1.74 1.31 . 86 1 5T G L281

44. 47 -2.51 -.88 1.51 .99 15T G L285

46. 36 -.62 -.22 1,38 .90 1 5Q G L288

49.60 2.62 .92 lo 1 8 .78 1 5T G L290

48.93 1.96 .68 1,39 .91 15A G L29

1

47.07 .09 . 03 1,16 .76 15T G L299 47.93 • 96 .33 2.09 1.37 15T G L305 49.27 2.29 . 80 1.16 .76 I5T G L309

45.47 -1.51 -.53 2.07 1.36 15T G L31 1

44. 40 -2.58 -.90 2.20 1.44 15T G L312

47. 40 .42 . 15 1.55 1.02 1 5T G L3 2 5 48.53 1.56 .54 2.07 1.36 15T G 132 2 47.60 .62 .22 1.06 .69 15T G L324 42.07 -4.91 -1.72 1.10 .72 15T G L328

17. 37 -29.61 10.37 1,25 .82 15T ft L331 46.00 -.98 -. 34 1,60 1.05 1 5T G L336

46. 13 -.84 -.30 1,77 1. 16 15C G L344

47. 87 .89 .31 5.01 3.29 15T 0 L345

48.32 1 .34 .47 .95 .62 15C G L352 52.00 5.02 1.76 1.51 .99 15T G L358 48.20 1.22 .43 1. 19 .78 15T G L360

46.00 -.98 -.34 2. 10 1.38 15T «• L3 76 58.93 11.96 4. 18 7.36 4.83 1 5T tt L362

44.60 -2.30 -.83 1.06 .69 15T X L388

46. 07 -.91 -.32 2.46 1.62 15T G L390

45.00 -1.98 -.69 1.81 1.19 15T G L396M

49.40 2.42 . 85 2,20 1.44 15R G L4 42 56.40 9.42 3.30 2.26 1.48 15C * L554

45. 40 -1.58 -.55 1.99 1.31 15T G L557

44. 80 -2.18 -.76 1.26 .83 1ST G L558

48. 27 1.29 .45 1.67 1.09 15T G L5 59 43.47 -3.51 -1.23 1.55 1.02 15T G L562

44. 80 -2. 18 -.76 1,62 1.20 15T G L565

45. 33 -1.64 -.58 1,23 .81 1 5T G L566 62.93 15.96 5.59 2.63 1.73 1 5C * L567 47.73 .76 .26 1.67 1.09 15T X L574

48. 01 1.03 .36 1.33 .88 1 5L e L575 55.60 8.62 3.02 1.55 1.02 i 5T «• L576 42.27 -4.71 -1.65 1.22 . 80 1 5T G L580 46.69 -.28 -.10 1.71 1.12 15Q G L581

42. 40 -4.58 -1.60 1.88 1.24 1 5T G L5 87 12.00 -34.98 - 12.24 1.77 1.16 15T n L596 46.27 -.71 -.25 1,83 1.20 15T G L5 97 47.80 • 82 .29 1.66 1.09 15T G L5 99

51. 60 4.62 1.62 1.55 1.02 15T G L600 47.33 .36 .12 1.63 1.07 1ST X L6 04 46.53 — o 44 -. 16 1.19 .78 1ST G L6 06 68.27 21.29 7.45 2.37 1.56 1ST 0 L622

46. 00 -.98 -.34 1.65 1.08 15L G L626

10. 13 -36.84 - 12.90 .35 .23 15T 0 L651 36.93 -10.04 -3.52 4.33 2.85 1 5C X L652

42. 13 -4.84 -1.70 .99 .65 15T G L654

6 1.20 14.22 4.98 6.68 4.38 15T rtf L670

46.20 -.78 -.27 1.42 .94 15T 0 L679

15
REPORT NO. 58S TAPPI CO LLAB6RAT I VE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS 115-1 TABLE 1 TEARING STRENGTH, GRAMS

TAPPI STANDARD 1414 TS-65, ANY MAKE ELMEND0RF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

SAMPLE BOND SAMPLE HEAT SET OFFSET BOOK TEST D. 15 LAB E85 79 G SAMS PER SQUARE METER B96 91 GRAMS PER SQUARE METER

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

L6 80 38* 27 •1.48 -.76 a. 03 .35 44.53 -2.44 -. 86 1.60 1.05 1ST 0 L6 80 L684 38.07 — 1 *68 -.86 1.10 • 90 41.93 -5.04 1.77 1.67 1.09 1 5T © L6 84 L68 8 42« 00 2.25 1.15 1.31 1.07 52.67 5.69 1.99 1.63 1.07 15T 6 L686

L692 39.47 -.28 -.14 1.64 1.35 46.47 -.51 -.18 2.39 1.57 15T 0 L692

GR. MEAN - 39.75 GRAMS GRAND MEAN * 46.98 GRAMS TEST DETERMINATIONS 15

SJ> MEANS - 1.95 GRAMS SD OF MEANS - 2. 86 GRAMS 117 LABS IN GRAND MEANS AVERAGE SDR - 1.22 GRAMS AVERAGE SDR • 1.52 GRAMS

GR. MEAN 389.8 MI LLINEWTON GRAND MEAN - 460.7 MILLINEWTON

L24 2 46.36 6.61 3.39 .89 .73 52.79 5.62 2.04 2.86 1.88 150 L242

L25 0L 43.99 4.25 2. ia 1.35 1. 1 1 52.90 5.92 2.07 1.64 1.07 15B L250L

L25 1 40.47 • 72 .37 1.46 1.19 51. 13 4. 16 1.45 3.09 2.03 15K L251 L610 38. 20 -1.55 -.79 1.15 .94 45. 93 -1.04 -.37 1.62 1.07 15E L6 10 TOTAL NUMBER OF LABORATORIES REPORTING • 138

Best values: E85 40+3 grams

B96 47+4 grams

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

150, 151, 212, 331, 382, 567, 622, 670.

Please see the diagram on the inside of

the back cover of this report which shows

how to distinguish between an Elmendorf

tear tester with DEEP CUTOUT and an older

tester with NO CUTdUT.

Data from the following laboratories appear to be

off by a multiplicative factor: 226B, 596, 651.

16
F

ft

ft

ft

ft*

X

*aa

*

-a- a

aa

a

a

a

aa

a

a

a

aa

a

a

aa

a

a

a

a

a

a

a

a

aa

a

a

a

aa

a

a

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a

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a

N6# 58S TAPPI CaLLABaRATI VE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T 15- 1 TABLE 2 TEARING STRENGTH, GRAMS

TAPPI STANDARD 1414 TS-65 fl ANY MAKE ELMENDORF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

MEANS COORDINATES AVG

E85 B9 6 MAJOR MINOR R. SDR VAR PROPERTY 'TEST INSTRUMENT-*—CONDITIONS

8.53 10. 13 -4 7. 82 6.73 .33 15T TEARING STRENGTH, STANDARD, THWI NG-EL\JEND6PJF( SCALE TO 100 i 10.60 12.00 -45. 03 5.81 1.23 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO ICO i 20.20 24.44 -29.49 4.50 .99 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 25.93 17.37 -32.41 -4. 12 1.32 31 5 T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO 100 5 33<> 33 39.00 -AO. 17 1.17 1.12 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100) 35.07 36.93 -10.99 -1.40 2.35 1 5C TEARING STRENGTH, STANDARD, TBWI NG-ELMENDORF ( W,.AIR CLAMP)

35.53 44.93 -3. 98 2.47 1.00 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 35.60 42. 13 -6.31 .52 • 66 I.5T TEARING STRENGTH, STANDARD, THWXNG- ELMENDORFt SCALE TO ICO ) 36.33 44. 47 -3. 95 1.55 1.05 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO ICO ) 36.33 46. 20 -2. 48 2.47 1.31 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 36.40 46.00 -2.61 2.31 1.34 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 » 36.67 42.40 -5. 52 . 16 1.02 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 > 37.00 43. 80 -4. 15 .63 .70 15R TEARING STRENGTH, STANDARD, THU ING-ELMENDeSF, DIGITAL READOUT

37.20 45. 40 -2.69 1 .3 1 .97 15T TEARING STRENGTH, STANDARD. THWING-ELHEND0HF< SCALE T0 100 ) 37.20 42.00 -5.57 -.50 ,90 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFI SCALE T0 100 ) 37.33 47.60 -.76 2.37 1,72 15R TEARING STRENGTH, STANDARD. THWING-ELWENDORF, DIGITAL READOUT

37.47 43. 67 -4. 02 . 16 .64 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO ICO ) 37.73 44. 13 -3.48 .18 .91 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO ICO ) 37.73 45.33 -2.47 .82 .93 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 37.73 43.47 -4. 04 -.17 1.10 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 ! 37.73 46. 00 -1.90 1.18 1. 16 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 37.87 46. 07 -1.77 1.10 1.39 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 > 37.93 44.93 -2.70 .44 .97 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 38.00 42. 27 -4. 92 -S .04 .71 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 38.00 45.60 -2. 10 .74 .98 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO ICO ) 38.00 46.00 -1.76 .95 .53 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 i 38.01 46.36 -1. 45 1. 14 .91 1 5Q TEARING STRENGTH, STANDARD, THWING-ELMENDORF „ AIR CLAMP, DIGITL

38.07 4 1.93 -5. 16 -1.27 1.00 15T TEARING STRENGTB, STANDARD, THWING-ELMENDORFi SCALE TO ICO ) 38. 13 44.20 -3. 21 -.12 .91 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO 100 > 38® 13 43.00 -4.22 -.76 .62 15T TEARING STRENGTH, STANDARD, THWING-ELMEND6RF( SCALE TO ICO ) 38.20 45.93 -1.71 .75 1.00 I5E TEARING STRENGTH, STANDARD. THWING-ELMENDSRF.AMBIENT C0ND. 38.20 45.00 -2.50 .25 .91 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 > 38.27 44. S3 -2. 86 -.05 .95 15T TEARING STRENGTH, STANDARD, THWING-ELMEND6RF( SCALE TO 100 ) 38.37 42. 07 -4. 89 -1.45 1.06 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 38.40 46.00 -1. 55 .62 1.05 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

38.53 45© 67 -1. 59 .43 1.01 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO 100) 38.67 46.47 -1.01 .64 2. 02 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO 100 3 38.73 44 o 40 -2.72 -.52 1.12 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO ICO ) 38.73 47. 13 -.41 .94 .74 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 38.80 46. 20 -1. 16 .3e .74 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 » 38.87 46. 73 -.68 .61 .93 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO 100 t 38.93 44.60 -2. 44 -. 58 1.19 15C TEARING STRENGTH, STANDARD, THWI NG-ELMENDORF ( W«, AIR CLAMP ) 38.93 44. 13 -2. 84 -.83 . 56 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 39.00 45.67 -1.51 -.07 .74 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO ICO ) 39.00 44. 87 -2. 18 -.50 1.39 15R TEARING STRENGTH, STANDARD, THWING-ELMEND6RF, DIGITAL READOUT

39.07 47.07 — • 29 .62 .83 15T TEARING STRENGTH, STANDARD. THHING—ELMEND0SFC SCALE TO 1O0 ) 39.07 43.60 -3. 22 -1.23 .84 15T TEARING STRENGTH, STANDARD. THWING-ELMEND0BF( SCALE TO 100 ) 39. 13 46.60 -.65 .32 .71 15L TEARING STRENGTH, STANDARD. L0RENTZ-WETTRES

39.20 44. 27 -2. 58 -.59 .63 15T TEARING STRENGTH, STANDARD, TBWING-ELMEND6SF< SCALE TO 100 ) 39.23 46.33 -.82 .09 .98 15T TEARING STRENGTH, STANDARD, THWING— ELMEND0RF1 SCALE TO ICO ) 39.33 44. 80 -2. 06 -.81 1.40 15T TEARING STRENGTH, STANDARD, THWING-ELMEND6RF4 SCALE TO ICO ) 39.33 48. 00 .64 .89 1.29 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF1 SCALE TO 100 ) 39.40 48. 87 1.41 1.30 1.32 15A TEARING STRENGTH, STANDARD, APPITA

39.40 46. 73 -•39 .16 1.12 15T TEARING STRENGTH, STANDARD, TBWING-ELMEND0RF1 SCALE TO 100 ) 39.40 44. 53 -2.25 -1.01 .60 15T TEARING STRENGTH, STANDARD, THWING-ELMEND6RFJ SCALE TO 100 ) 39.47 46. 47 -.58 -.04 1.46 15T TEARING STRENGTH, STANDARD, THWING-EL'1END0SF4 SCALE TO 100 5 39.47 45.44 -1.45 -.58 .50 15M TEARING STRENGTH, STANDARD, T. N. MIRFIELD1 APPITA-ELMEND0SF ) 39.47 48.53 1. 17 1.07 1.52 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO 100 8 39.47 45.47 -1.43 -.57 .90 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORFi SCALE TO 100 ) 39.53 46.40 -.60 -.13 .78 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 39.53 46.00 -.94 -.34 .96 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 ) 39.60 44.80 -1.92 -1.04 .87 15T TEASING STRENGTH, STANDARD, THW I NG-ELMENDORFi SCALE TO 100 ) 39.80 45.33 - 1 © 36 -.92 1,08 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 > 39.80 45. 07 -1.59 -1.07 .68 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 ) 39.67 47© 80 • 76 .34 1.18 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFi SCALE TO 100 )

17
REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS 115-1 TABLE 2 TEARING STRENGTH, GRAMS

TAPPI STANDARD 1414 TS-65, ANY MAKE ELMEND6RF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG CODE F E85 B96 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

Li 62 0 39.87 45.07 -1. 55 -1. 12 .92 15T TEARING STRENGTH, STANDARD8 THWING-ELMENDORF! SCALE TO ICO ) L324 0 39.87 47.60 .59 .23 1.00 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) Lc 5 0 39.93 45.60 -1.07 -.89 o 9 8 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF< SCALE TO 100) L237B 0 39.93 49.47 2. 20 1.17 .82 15T TEARING STRENGTH, STANDARD, THWI NG-EL <ENDORF! SCALE TO 100 ) Li 2 2 0 39.95 47. 09 • 20 -.11 .88 15C TEARING STFBNG'"'7 , STANDARD, THWING-ELMENDORF ( W. AIR CLAMP

)

L264 0 40.00 47.47 .55 .05 1. 54 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF< SCALE TO 100 ) L255 0 40.00 45. 80 -.86 -.84 .60 15T TEARING STRENGTH, STANDARD, THW ING-ELMEND0RF( SCALE TO 100 ) LE 2 8 0 40.00 45. 33 -1.26 -1.09 .71 15T TEARING STRBNGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) L561 0 40.04 46.69 -.08 -.40 .86 15Q TEARING STRENGTH, STANDARD, THWING-ELMENDORF, A IR CLAMP .DIGITL

L559 0 40.07 48.27 1.26 .42 .97 15T TEAMING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 )

L23 2 0 40.13 45.73 -• 85 -.99 1.83 15T TEARING STRENGTH, STANDARD, THWING-ELMENDOSF( SCALE TO 100 ) Li 53 0 40. 13 45.53 -1.02 -1.10 .82 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF ( W. AIR CLAMP

)

L442 0 40. 13 49.40 2.25 .97 1.21 15R TEARING STRENGTH, STANDARD, THWING-ELMENDORF, DIGITAL READOUT

L309 0 40.20 49.27 2. 16 .84 .85 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L597 0 40.27 46.27 -.32 -.82 .89 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 )

L34 5 0 40.27 47.87 1.03 .03 2.29 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L31 i 0 40.27 45.47 -1.00 -1.25 1.10 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100) L30 5 0 40.33 47.93 1. 12 .01 1.50 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100) L206 0 40.40 46. 80 • 20 -.65 .77 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L 1 6 7 0 40.40 49.07 2. 12 .56 .97 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF ! W, AIR CLAMP)

L257C 0 40.40 50.40 3.24 1.27 1.22 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF ! W. AIR CLAMP

)

L131 0 40.40 49.73 2.68 .92 1.29 15A TEARING STRENGTH, STANDARD. APPITA

L575 0 40.42 48.01 1 o 23 -.02 .95 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L251 40.47 51. 13 3. 90 1.6 1 1.61 15K TEARING STRENGTH, STANDARD, LORENTZ-WETTRES, 20 c. 65* RH L244 0 40.53 46. 47 -oOl -.94 .67 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF < W, AIR: CLAMP

)

L 1 89 0 40.53 48.33 1. 57 .06 .75 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L 1 48 0 40.67 46.47 • 06 -1.05 .78 15T TEASING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L36 0 0 40.73 48. 20 1. 56 -.18 .77 JL5T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L29 1 0 40.73 48. 93 2.18 .2 1 1.30 15A TEASING STRENGTH, STANDARD, APPITA

L257A 0 40.80 50.93 3.91 1.22 .94 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF < W. AIR CLAMP

)

L344 0 40.80 46. 13 15 -1.34 1.00 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF 1 W. AIR CLAMP

)

L21 3 0 40.67 50.40 3.49 .88 .95 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L606 0 40.93 46. 53 .26 -1.24 .81 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100) L352 0 40.95 48.32 1.78 -.30 .71 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF ! W. AIR CLAMP

)

L219 0 41.07 47.60 1.23 -.78 1.19 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L25 7B 0 41.07 50.40 3. 60 .71 1.03 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF < W. AIR CLAMP

)

Li 07 0 41.07 48. 80 2.25 -.14 1.86 15T TEARING STRENGTH. STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L29 0 0 41. 13 49.60 2.96 .23 .73 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L241 0 41.20 49. 87 3.22 .31 .88 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L223 0 41.33 48. 49 2. 13 -.53 .89 15R TEARING STRENGTH, STANDARD, THWING-ELMENDORF, DIGITAL READOUT

Li 0 5 0 41.33 47.87 1.60 -.87 2.02 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L3 15 0 41.47 47.40 1.28 -1.23 1.02 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L225 0 41.53 50.40 3. 85 .31 .83 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO ICO ) L182T 0 41.80 50. 13 3. 76 -.05 .97 15T TEARING STRENGTH, STANDARD, THWING-ELMBNDORF! SCALE TO ICO ) L688 0 42.00 52.67 6. 01 1.13 1.07 15T TEARING STRENGTH, STANDARD. THWING-EL 4END0RF! SCALE TO 100 ) L600 0 42.00 51.60 5. 1 1 .56 .89 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L i 39 * 42.00 53.40 6.63 1.52 .88 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L i 34 0 42. 13 49. 80 3. 66 -.5 1 .93 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF (W, AIR CLAMP)

L i 85 0 42.40 48. 80 2.96 -1.27 .72 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L24 8 0 42.50 50.32 4. 30 -.55 .79 1 5 J TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L358 0 42.53 52.00 5.73 .32 .84 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF< SCALE TO 100 ) L212 ft 42.67 58.53 1 1.33 3.70 3.97 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L388 X 42.87 44. 60 -.35 -3.9 1 1.00 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L249 0 42.87 48. 87 3.27 -1.64 1.36 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) Li 9 1 0 43.20 50.80 5.08 -.68 1.06 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) Li43 * 43.33 47.20 2. 10 -2.92 1.03 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L233 0 43.47 50.00 4. 54 -1.53 .84 15T TEARING STRENGTH, STANDARD , THWING-ELMENDORF! SCALE TO 100 ) L259 0 43.93 54.00 8. 17 .21 .91 15T TEARING STRENGTH, STANDARD. THWING-ELMENDORF! SCALE TO 100 > L250L 43.99 52.90 7.27 -.43 1.09 15H TEARING STRENGTH, STANDARD, LH0MARGY, 20 C, 65% RH

L 1 94 0 44. 23 51. 17 5. 94 -1.56 1.25 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L i 59 X 44.37 57. 29 11. 19 1.59 7. 10 15L TEARING STRENGTH, STANDARD , LORENTZ-WETTRES

L576 * 44.87 55.60 10. 02 .27 1.63 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L554 * 45.40 56.40 10.99 .25 1.30 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF (W,i AIR CLAMP

)

L67 0 ft 45.73 61.20 15.22 2.53 2.67 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L57 4 X 46.27 47 3 73 4. 12 -5. 1 1 1.16 1ST TEARING STRENGTH, STANDARD. THWING-ELMENDORF! SCALE TO 100 )

18
REPORT NO. 58S TAFPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T1S-1 TABLE 2 TEARING STRENGTH, GRANS

TAPPI STANDARD T414 TS-65, ANY MAKE ELMENDORF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG

CODE F E85 B9 6 NAJ6S MINOS R, SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L24 2 46.36 52.79 8.45 -2© 49 1.30 15U TEASING STRENGTH, STANDARD, AUSTRALIAN OPT. CO. L604 X 48.27 47.33 4. 85 -7.02 1.15 15T TEARING STRENGTH, STANDARD, THW I NG- ELMENDORF! SCALE TO ICO)

L 1 5 1 ft 49.20 58. 80 15.04 -1.69 1.70 15C TEARING STRENGTH, STANDARD, THWING-ELMENDOHF 1W.AIR CLAMP ) L207 X 49.44 50.96 8.54 -6o 07 3.6 7 15R TEARING STRENGTH, STANDARD, THW I NG-ELMENDORF .DIGITAL READOUT

L382 # 49.87 58.93 15. 51 -2. 18 5.64 1ST TEARING STRENGTH. STANDARD, THWING-ELMENDORFl SCALE TO ICO )

LI 5 0 ft' 55.13 63. 87 22.49 -4.00 .51 15T TEARING STRENGTH, STANDARD, THW ING-ELMENDOKF< SCALE TO 100 ) L622 ft 59.73 68. 27 28.67 -5.54 3.58 15T TEARING STRENGTH, STANDARD, TBWING-ELMENDORF< SCALE TO 100 ) L567 # 59.73 62. 93 24. 16 -8.39 1. 45 15C TEARING STRENGTH, STANDARD, THWI NG-ELMENDORF < W.AIR CLAMP

GMEANS 39.75 46.98 1.00 95% ELLIPSE: 8.28 2.40 WITH GAMMA - 57 DEGREES

19
MILLINEWT0N

360

380

400

420

440

460

480

500

520

540

560

TERR I NG STRENGTH, DEEP CUT0UT

SAMPLE E85 = 39.7 GRAMS SAMPLE B96 = 47-0 GRAMS

SAMPLE E85 = 390 M I LL I NENT0N SAMPLE B96 = 461 M I LL I NEWT0N

GRAMS

i

1 r———i1 1 1 1 1 1 1 280 300 320 340 360 380 400 420 440 460 480

MILLINEWT0N

20
REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T 17- 1 TABLE 1 TEARING STRENGTH, GRAMS

TAPPI STANDARD T414 TS-65, THWING-ELMENDORF WITHOUT DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

SAMPLE PRINTING SAMPLE PRINTING TEST D. 15 LAB J42 86 GRAMS PER SQUARE METER K49 105 GRAMS PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N .DEV SDR R. SDR VAR F LAB

LI 06 65*9 1.6 .64 2.7 .94 128.5 8. 1 1.60 13.6 2.07 17N 0 LI 06

LI 22 63*9 — . 4 -• 15 2. 5 .87 125.2 4.8 .95 6.2 .95 17N 0 LI 22

LI 4 8 67.5 3.3 1.30 1. 8 .62 1 18.4 -2.0 -.39 2.6 .40 17N o L l 48 L23 1 65.2 1.0 .38 3.6 1.26 121.5 1. 1 .21 4.3 .66 17N 6 L231 L234 66*1 1.9 .74 2.3 .82 121.6 1.2 .24 6.4 .97 17N 0 L234

L26 7 106*5 42.2 16.67 19.0 6. 70 130.5 10.2 2. 01 11.7 1.78 17N tf L267

L26 9 66.0 i.a .69 2.2 .79 122. 1 1. 8 .35 8.0 1.22 17N 0 L269

L30 1A 65.3 1.0 .40 1.8 . 63 N6 DATA REPORTED FOR SAMPLE K49 17N M L30 1 L301B 63.3 -.5 -.36 2.2 .77 1 16.0 -4.4 -. 87 3.7 .56 17N 0 L301B

L308 66. 3 2.0 .80 6.4 2.25 126.7 6.3 1.24 7.3 1. 11 17N o L308 L326 59.7 -4.5 -1.78 3.0 1.06 1 15.5 -4.9 -.97 10.4 1.58 17N o L3 26 L339 60.5 -3.7 -1.47 2.2 .78 1 15.7 -4.6 -.92 5. 3 .81 I7M 0 L339

L393 62.3 -2.0 -.78 2.4 .84 1 13. 1 -7.3 1.45 4.4 .67 17N 0 L393

GR« MEAN - 64.

GRAMS GRAND MEAN - 120.4 GRAMS TEST DETERMINATIONS - 15 SD MEANS - 2.5 GRAMS SD 6F MEANS - 5. 1 GRAMS 1 1 LABS IN GRAND MEANS AVERAGE SDR • 2. 8 GRAMS AVERAGE SDR - 6.6 GRAMS

GR. MEAN - 630.1 MILLINEWTON GRAND MEAN •1180.5 MILLINEWTON

L372 59.3 -4.9 -1.95 2.0 «70 1 12.9 -7.4 1.47 4.2 o 64 17X . L372 TOTAL NUMBER OF LABORATORIES REPORTING - 14

Best values: J42 65 grams

K49 120 grams

The following laboratories were omitted from the grand means because of extreme test results: 267. Data from the following laboratories were given X

codes and omitted from the grand means because the tests were made on DEEP CUTOUT tear testers: 372.

Please see the diagram on the inside of the back cover of this report which shows

how to distinguish between an Elmendorf

tear fester with DEEP CUTOUT and an older

tester with NO CUTOUT*

REPORT NO* 5 8 S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T17-1 TABLE 2 TEARING STRENGTH, GRAMS

TAPPI STANDARD T414 TS-65, T BRING—ELMENDORF WITHOUT DEEP CUTOUT IS STANDARD FOR THIS ANALYSI

S

LAB MEANS COORDINATES AVG CODE F J42 K49 MAJOR MINOR E.SDR VAR PROPERTY—-TEST INSTRUMENT- CONDITIONS

L372 59.3 1 12.9 -8.7 2. 1 .67 17X TEARING STRENGTH, NO CUT OUT : GIVE INSTRUMENT MAKE, MODEL

L3 26 0 59.7 1 15.5 -6.2 2.5 1.32 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L339 a 60.5 1 15.7 -5.6 1.9 .79 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L39 3 0 62.3 1 13. 1 -7.5 -.7 .75 17N TEARING STRENGTH, NO CUT OUT. THWI NG-ELMENDORF

L30 IB o 63. 3 1 16.0 -4.4 -.7 .67 17N TEARING STRENGTH, NO CUT OUT. THWI NG-ELMENDORF

LI 22 0 63.9 125.2 4.4 2.0 .91 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L231 0 65.2 121.5 1.3 -.5 .96 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L301A M 65.3 .63 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

LI 06 0 6 5.9 128.5 8. 1 1.3 1.50 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L26 9 0 66. 0 122. 1 2.2 -1.0 1.00 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L234 0 66. 1 121.6 1.8 -1.3 .90 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L30 8 o 66.3 126.7 6.6 .3 1.68 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L 1 4 8 0 67.5 118.4 -.7 -3. 8 .51 17N TEARING STRENGTH, NO CUT OUT. THWI NG-ELMENDORF

L26 7 * 106.5 130.5 24. 1 -36. 1 4.24 17N TEARING STRENGTH, NO CUT OUT. THWING-ELMENDORF

GMEANS: 64.2 120.4 1.00 95% ELLIPSE: 16.5 5.7 WITH GAMMA - 69 DEGREES

21
MILLINEWT0N

1

050

1

50

1

250

1350

TEARING STRENGTH , N0 CUT0UT

SAMPLE J42 = 64.2 GRAMS SAMPLE K49

SAMPLE J42 = 630

LO

CO

O

CO

LO

CNJ H

CO

21

CL

QL

CL)

O

OJ

M I LL I NEWTON SAMPLE K49

J l I m + , X . « NOT IN GRAND MEANS

'st' ^ ANALYSIS T17-1

LU

CL

2=

CC

CO

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120.4 GRAMS

1181 M I LL I NEWTON

I 1

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o H

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+ O

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SAMPLE J42

45 50 55 60 65 70

GRAMS

75 80 85

450 5CK) 550 600 650 700 750 800

MILLINEWT0N

22
RE PART NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T19-1 TABLE 1 TENSILE BREAKING STRENGTH, KILONEWTONS PER METER - PACKAGING PAPER

TAPPI STANDARDS T404 0S-76 AND T494 0S-7O, TENSILE BREAKING STRENGTH, PENDULUM AND CRE TYPES

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 20 LAB J01 98 GRAMS PEE SQUARE METER J16 149 GRAMS PER SQUARE MBTER C0DE MEAN DEV N. DEV SDR R« SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB L100 5.4 1 -.18 -.59 .18 .84 8. 89 .07 .18 .17 ,58 19E 0 L100

LI 06 4.99 -.60 -1.94 .31 1.46 6.62 -2.20 -5.49 ,43 1.42 19A ft LI 06

LI 07 5.59 -.00 -.01 .24 1. 14 9.01 .20 .49 .35 1. 16 19A 0 L 1 07

LI 22 5.40 -.19 -.62 .13 .61 8.56 -.25 -.63 .22 .73 19A 0 L 1 22

LI 26 5.50 -.10 -.31 .29 1.39 8.73 -.08 -. 19 .27 .92 19A 0 LI 26

LI 5 1 5. 06 -.53 -1.70 .21 1.01 8.32 -.49 - 1.22 .25 . 85 19A 0 LI 51

LI 53 5.76 .17 .54 .22 1. 03 9.01 .20 .50 .35 1.15 19P 0 LI 53

LI 57A 5.92 .32 1.05 .17 • 79 9. 02 .21 .52 .26 .86 19P 0 L157A

LI 571 5.52 -.08 -.24 .36 1. 70 8. 15 -.66 -1.65 .31 1.03 19A « L 1 57

L167 5. 84 .25 .81 .11 .50 9.27 ,46 1.16 .36 1.20 19G e L 1 67

LI 821 5.29 -.31 -.99 .19 • 91 8.26 -.55 -1.37 .35 1.16 19D o L 1 82

LI82L 5.39 -.20 -.65 .15 .73 8.41 -.40 -.99 .25 . 84 19T 0 LI 82L L20 7 5.28 -.31 -1.01 .16 .76 8.72 -o 09 -.23 .30 .99 19A a L207

L219 5.36 -.24 -.76 .20 .94 e.3i -.50 -1.25 .29 .97 19E 0 L2 19 L22 5 5.70 . 1 1 .36 .20 • 94 8.90 .09 .23 .21 ,72 19P 0 L225 L234L 5.64 .04 . 14 .19 .91 8.62 -.19 -.47 .29 .97 19P 0 L2 34L L237A 5.69 .10 .32 .23 1.10 8. 84 .02 . 06 .35 1.18 19Q 0 L237A L237B 5. 73 . 14 .44 .24 1. 14 9.07 .26 .64 .20 .68 19A 0 L2-37B L23 8A 5.46 -. 13 -.42 .20 .96 8.68 -. 13 -.32 .35 1.17 19T 0 L238A

L243 5.37 -.23 -.73 .10 .46 8.45 -.36 -.89 .22 .74 1 9A 0 L243 L257A 5.79 .20 .64 .16 .78 9.28 .47 1. 18 .24 .79 19P 0 L257A L257C 5.73 . 14 ,45 .14 .65 9.07 .26 .65 .38 1.29 19P 0 L257C

L264A 5.55 -. 05 -. 15 . 16 .74 8.83 .02 .05 .27 .89 1 9A 0 L264A

L264P 5.47 -.13 -.40 .36 1.69 9. 01 .20 ,49 .35 1. 17 19P 0 L264P

L26 5 5.27 -.33 -1.05 .12 . 58 8.71 -.10 -.25 .19 .62 19A 0 L265

L26 7 5.30 -.29 -.95 .14 .68 8. 54 -.28 -.69 .32 1.06 19A 0 L267

L26 8A 5.41 -.18 -.58 .24 1. 15 9.03 .22 , 54 .22 .72 19A 0 L268A L268P 5.77 .17 .56 .17 • 79 9.36 .55 1.37 . 16 .52 1 9P 0 L268P

L27 3 5.50 -.09 -.29 .23 1. 09 8.67 -.14 -.35 .35 1.16 19P 0 L273 L280 4.84 -.75 -2.42 .42 1.98 7.69 -1.12 -2. 80 .57 1.91 19G * L280

L2 81 5.91 .31 1.01 .14 .66 9. 13 .32 .79 .21 .71 19G 0 L28A L305 5.78 .19 .62 .24 1.13 8.68 -.13 -.33 .15 .50 19V 0 L305

L312 5.95 .35 1.14 .14 .68 9.28 .47 1. 18 .28 .93 19D 6 L312

L32 4 5.40 -.20 -.63 . 19 . 88 8.55 -.26 -.66 .29 .98 19A 0 L324

L336 5.62 . 03 .10 .21 1.01 8.89 .08 . 21 .28 . 9S 19G 0 L336 L356 5.63 .04 .12 .32 1.52 9. 15 .34 . 86 .39 1.29 19P 0 L356

L562 6. 10 . 50 1.62 .28 1.33 9.39 .57 1.43 .30 1.28 19P 0 L562 L565 5.92 .32 1.04 .33 1. 55 8.89 .08 .20 .20 .68 19T 0 L565

L56 8 6.08 .4e 1 .55 .21 .98 8.99 .18 .44 .62 2.07 19P 0 L568

L57 5 5.33 -.27 -.86 .29 1. 37 8.37 -.44 -1. 10 .39 1.29 19G 0 L575 L576 5.44 -. 15 -.49 .20 • 94 8.33 -.48 -1. 19 .23 .77 19A 0 L5 76

L5 80 5.74 .15 .47 .18 . 88 9.09 .28 .70 .34 1. 14 19G 0 L580

L581 5.93 .34 1.08 .19 .90 NO DATA REPORTED FOR SAMPLE J16 19A M L5 81 L604 5. 14 -.45 -1.45 .36 1.70 8.23 -.58 -1*44 .63 2. 11 19A 0 L604

L6 06 5.75 .15 .50 .29 1.36 9.04 .23 • 57 .26 .93 19P 0 L6 06

L6 1 0 5.08 -.52 -1.66 .26 1.24 8. 23 -.58 -1.45 .36 1.20 19A 0 L6 10 L622 6. 16 .57 1.84 .19 • 92 9.49 .68 fi e 69 .39 1. 29 190 0 L622 L650 5. 94 .35 1.13 .22 1. 04 9.30 .49 1. 23 .30 1.02 19G 0 L650

L6 52 6.30 .71 2.29 .21 .98 9. 56 .75 1 • 87 .34 1. 15 19A 0 L652 L684 6.02 .43 1.37 .36 1.71 9. 18 .37 • 93 .29 .96 19G 0 L6 84

L6 8 9 5. 24 -.35 -1.13 .17 .83 8.54 CVJ • -•67 .20 ,67 19A 0 L6 89

GR, MEAN • 5.59 KIL0NEWT0N/M GRAND MEAN - 8.81 KILO NEWTON/M TEST DETERMINATI0NS - 20

SD MEANS ° .31 KIL0NE*T0N/M SD 0F MEANS * .40 KILONEWTON/M 49 LABS IN GRAND MEANS AVERAGE SDR * .21 K I L0NEWT0N/M AVERAGE SDR » .30 K I LO NEWTON/M

GR. MEAN a 31.94 LB/INCH GRAND MEAN 50.32 LB/INCH

L250I 4.79 -.80 -2*59 .17 .79 7.42 -1.39 - 3* 48 .25 .85 19L . L250I

L251 4.32 -1.27 -4*09 .44 2.09 7.42 - 1 • 39 -3.47 .41 1 o 37 191 L251 TOTAL NUMBER OF LABORATORIES REPORTING * S3

Best values: J01 5.6 + 0.5 kilonewton per meter

J16 8.8 + 0.6 kilonewton per meter

The following laboratories were omitted from the grand means because of extreme test results: 106.

23
REPORT NO® 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY ANALYSIS T 19- 1 TABLE 2 TENSILE BREAKING STRENGTH, KI LO NEWTONS PER METER - PACKAGING PAPER

TAPPI STANDARDS T404 OS-76 AND T494 0S-7O, TENSILE BREAKING STRENGTH, PENDULUM AND CSE TYPES

LAB MEANS COORDINATES AVG CODE F JOi J16 MAJ6B MIN0B B. SOB VAR PROPERTY TEST INSTRUMENT CONDITIONS

L251 4«3 2 7.42 -1.87 .19 1.73 191 TENSILE STRENGTH, PACKAGING PAPER. CRB, 20C, 65* RH L250I 4# 79 7.42 -1.60 -. 19 .82 19L TENSILE STRENGTH, PAv^&AG I pJG PAPER, CfiE, 20 C , 65* R] L28 0 « 4 © 84 7.69 -1.35 -. 06 1.95 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CEE t Li 06 ft 4.99 6.62 -2.12 -.83 1.44 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) Li 5 1 O 5.06 8.32 -.71 .13 .93 19A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CEE )

L61 0 o 5.08 8.23 -.77 .07 1.22 19A TENSIi-E STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) L6 04 0 5. 14 8.23 -.73 .02 1.91 1 9A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (ORE ) L689 0 5.24 8.54 -.42 .12 .75 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE ) L26 5 0 5.27 8.71 -.28 .20 .60 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE ) L207 0 5.28 8.72 -.26 .19 .88 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CEE)

Li 8 20 5.29 8.26 -.62 -.08 1.03 19D TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE)

L267 0 5.30 8.54 -.40 .07 .87 19 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE)

L57 5 0 5.33 8.37 -.51 -.05 1.33 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL { CRE ) L2i 9 o 5.36 8.31 -.54 -. 1 1 .95 19E TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE)

L24 3 0 5.37 8.45 -.42 -.03 .60 19A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CRE )

LI 82L 0 5.39 8.41 -.44 -.08 .78 19T TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L324 0 5.40 8.55 -.33 -.00 .93 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) Li 22 0 5.40 8.56 -.32 .00 .67 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) L100 0 5.41 8. 89 -.05 .19 .71 19E TENSILE SIRENGTH, PACKAGING PAPER, LOAD CBLL ( CRE ) L268A 0 5.41 9.03 . 06 .27 .93 19A TENSILB STRENGTH, PACKAGING PAPER, LOAD CBLL ( CRE ) L576 0 5.44 6. 33 -.47 -.16 .86 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE) L238A 0 5.46 8.68 -. 18 .03 1.06 19T TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L264P 0 5.47 9.0i .08 .22 1.43 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

Li 26 0 5.50 8.73 -. 12 .03 1.15 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE ) L273 0 5.50 8.67 -.17 -.01 1.13 19P TENSILE STRENGTH. PACKAGING PAPER, PENDULUM TESTER

Li 571 fi- 5.52 8.15 -.58 -.33 1.37 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE) L264A 0 5.55 8. 83 -.01 .05 .81 19 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE)

L107 0 5.59 9.01 .16 .12 1.15 19A TENSILE STRENGTH. PACKAGING PAPER, LOAD CELL ( CRE ) L336 0 5.62 8. 89 .09 .02 .98 19G TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL (CRE)

L3 56 0 5.63 9.15 .30 . 17 1.40 1 9P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L234L 0 5.64 8.62 -. 13 -. 15 .94 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER L237A 0 5.69 8. 84 . 08 -.07 1.14 19Q TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L225 0 5.70 8.90 . 14 -.03 .83 19P TENSILE STRENGTH. PACKAGING PAPER. PENDULUM TESTER L237B 0 5.73 9.07 .29 .05 .91 1 9 A TENSILE STRENGTH. PACKAGING PAPER, LOAD CELL ( CRE ) L257C 0 5.73 9.07 .29 .04 .97 19P TENSILE STRENGTH. PACKAGING PAPER, PENDULUM TESTER L580 0 5.74 9.09 .31 .05 1.01 19G TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CRE ) L6 06 0 5.75 9.04 .28 .01 1.14 19P TENSILE STRENGTH. PACKAGING PAPER. PENDULUM TESTER

Li 53 0 5.76 9.01 .26 -.01 1.09 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L26 8P 0 5.77 9.36 .54 .19 .65 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L30 5 0 5.78 8.68 .01 -.23 .61 19V TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TBSTER

L2 57A 0 5.79 9.28 . 50 .12 .79 19P TENSILE STRENGTH, PACKAGING PAPER, PBNDULUM TESTER

Li 6 7 0 5.84 9.27 .52 .07 .85 19G TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL (CRE ) L2 8 i 0 5.91 9. 13 .44 -.06 .69 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CBLL ( CRE ) L565 0 5.92 8. 89 .26 -.21 1.12 19T TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

LI 57A 0 5.92 9.02 . 36 -.14 .63 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L581 M 5.93 .90 1 9A TENSILE STRENGTH, PACKAGING PAPER, LOAD CBLL (CRE)

L650 0 5.94 9.30 .60 .01 1.03 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) L31 2 0 5.95 9.28 .59 -.00 .81 19D TENSILE STRBNGTH, PACKAGING PAPER, LOAD CBLL ( CRE ) L684 0 6.02 9.18 .55 -.12 1.33 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CBLL ( CRE ) L568 0 6.08 8.99 .43 -.28 1.52 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L562 0 6. 10 9.39 .76 -.06 1.30 1 9P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER L622 0 6. 16 9.49 . 88 -.05 1.11 190 TENSILE STRENGTH, PACKAGING PAPER. PENDULUM TESTER

L6 52 0 6.30 9.56 1.03 -.12 1.07 19 A TENSILE STRBNGTH. PACKAGING PAPER, LOAD CBLL ( CRE ) GMEANS : 5.59 8.81 1.00 95% ELLIPSE: 1.25 .34 WITH GAMMA - 53 DEGREES

1979

24
KIL0NE

WT0N/M

TENSILE STRENGTH, PACKAGING PAPERS

SAMPLE J01 = 5.59 K I L0NEWT0N/M SAMPLE J16 = 8.81 K I L0NEWT0N/M

SAMPLE JOl = 31.9 LB/INCH SAMPLE J16 - 50.3 LB/INCH

24 26 28 30 32 34 36 38

LB/INCH

25
REPORT N0, 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T20-1 TABLE 1 TENSILE BREAKING STRENGTH, KILO NEWTON S PER METER

TAPPI STANDARD T494 0S-7O, TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. 20 LAB J71 76 GRAMS PER SQUARE METER K39 75 GRAMS PER SQUARE METER CODE MEAN DEV N. DEV SDK R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

Li 0 0 3,71 .03 .16 .13 .68 4.73 -.24 -.95 .14 .61 20E e Li 00

LI 0 5 3*69 .OX .06 .19 1.25 5.02 .05 . 18 .39 1.74 20A 6 L i 05

LI 1 8 3.75 .07 .41 .11 • 72 4.87 -.11 -.42 .21 .94 20A 8 Li 16

LI 2 2 3.67 -.01 -.07 .12 . 80 5.02 . 04 . 15 .14 .64 20A e Li 22 L124C 3.60 -.05 -.53 .20 i.37 4*72 -.26 -1.01 .27 1.20 20A 6 L124C

LI 25 3.85 .17 1.03 .21 1 • 4 4 5.44 .46 1.81 .31 1.41 20C a L 1 25

LI 3 1 3.75 .07 .43 .15 1. 00 5.20 .22 .85 .18 .79 20E 0 Li 31 L141T 3.55 -.13 -.83 .12 . 63 4. 64 -.14 -.55 .25 1. 14 20A 0 Li 4 i T

LI 43 3.94 .25 1.58 .15 1« 02 5.24 .26 1.01 .24 1.09 20E 0 Li 43

LI 4 8 3.65 -.03 -.20 .14 • 91 4. 89 -.09 -.35 .15 .66 20A G L 1 48

L 1 59 3.66 -.03 -. 16 .15 1*03 5. 06 .08 .32 .23 1. 04 20A G Li 59

LI 63 3.96 • 2e 1.73 .13 • 85 5.22 .25 .96 .22 .98 20D 0 Li 63

LI 6 7 3.85 .17 1.07 .21 1.44 5.34 .36 1.42 .25 1. 14 20G 0 Li 67

LI 8 5 3.57 -.11 -.69 .14 • 96 4.73 -.25 -.98 .37 1.64 20C 0 L i 85

LI 9 OR 3.71 .03 .19 .08 .55 4.77 -.21 -.82 .21 .96 2 OA 0 L190R

Li 94 3.44 -.24 -1.50 .18 1.21 4.64 -.34 - 1.34 .23 1.04 20A 0 L 1 94 L223B 3.72 .04 .24 .10 .66 5.07 .09 .35 .22 .99 20A 0 L223B L226C 3.39 — • 2S -1.79 .29 1. 92 4.57 -.41 -1.58 .24 1.07 20C 0 L2 26C L230 3.56 -.13 -.78 .11 .75 4.93 -.05 -.20 .12 .56 200 0 L230

L243 3.63 -.05 -.32 .09 • 62 4. 84 -.14 -.55 . 16 .72 20A 0 L243 L255 3.54 -.14 -.87 .15 1. 01 4.81 -.17 -.66 .22 .99 20A 0 L255

L26 0 3.56 -.13 -.78 .12 . 80 4.95 -.03 -.11 .15 .66 20A 0 L260

L261 3.76 .08 .51 .18 1.19 5. 16 .18 .70 .19 .86 20A 0 L261 L27 8 3.62 -.07 -.41 .15 • 98 5. 07 .09 .37 .22 .99 20A 0 L278

L29 1 3.62 -.07 -.41 .18 1.18 4.59 -.39 -1.52 .26 1.15 20A 6 L29

L309 3.62 -.07 -.41 .12 • 61 4.77 -.21 -. 83 .30 1.32 20E G L309

L31 5 3.41 -.28 -1.72 . 14 • 93 4.65 -.33 -1.28 .28 1.24 2 OA 6 L3 15 L325 3.49 -.20 -1.21 .11 • 77 4. 80 -.18 -.70 .23 1.03 20E 0 L325

L32 8 3.77 .05 .53 .38 2. 55 5. 54 .56 2. 19 .29 1.28 20A « L328

L331 3.98 .30 1.83 .15 .99 5.07 .10 .38 .29 1.28 20A » L331

L33 3 3.84 .15 .96 . 1 1 .77 5.03 .05 .20 .18 .81 20A a L333

L344 3. 73 .05 .29 .20 1.34 5. 10 . 12 .46 .31 1.38 20A o L344

L352 3.44 -.25 -1.53 .16 1.09 4. 14 -.84 -3.27 .22 .98 2OA X L352 L356 3.57 -. 1 1 -.69 .12 . 83 4. 87 -.11 -.42 .20 . 88 20A e L356

L36 0 3.39 -.25 -1.81 .13 . 86 4.63 -.35 -1.35 .21 .96 20B e L360 L390 3.96 .27 1.71 .11 .71 5. 26 .28 1.09 .18 . SO 20A 0 L390 L442 3.73 .04 .27 .07 • 46 4.94 -.04 -. 14 .09 .42 20G 0 L442

L557 3.65 -.04 -.23 .16 1.10 4.76 -.22 -. 85 .19 . 86 20 A 0 L557 L558 • 75 -2.93 - 18.19 .07 • 44 .98 -4.00 - 15.63 .06 .27 20A * L558

L55 9 3. 63 -.05 -.30 .12 • 83 4.93 -.04 -.18 .19 .83 20A 0 L559

L563A 3.58 -.10 -.61 .25 1.70 5.02 .04 . 17 .39 1.75 20A a L563A

L563B 4. 13 .44 2.76 .15 .98 5.77 .79 3. 08 .22 .97 20A « L563B

L567 3.65 -.03 -.21 .24 1.60 5.09 . 1 1 .44 .22 1.00 20A © L567

L574 3. 73 .05 .32 .15 1. 03 5.02 .04 . 17 .21 .92 20A O L574 L575 3.57 -.1 1 -.68 .14 • 95 4.79 -.19 -.74 .21 .93 200 0 L575 L587 3.88 .20 1.22 .13 • 88 5.27 .30 1. 16 .23 1.02 20A 0 L587

L592 3.67 -.01 -.05 .16 1.06 4.99 .02 . 06 .19 .84 20A 0 L592

L616 2.76 -.93 -5. 74 .10 . 68 3.65 -1.33 -5. 19 .16 .74 20D ft L616

GR. MEAN - 3.68 KI L0NEWTON/M GRAND MEAN • 4.98 KIL0NEWT0N/M TEST DETERMINATIONS - 20 SD MEANS - • 16 K I L0NEWT6N/M SD OF MEANS • .26 KIL0NEWT0N/M 45 LABS IN GRAND MEANS

AVERAGE SDR - .15 KIL0NEWT0N/M AVERAGE SDR - .22 KIL0NEWT0N/M

GR. MEAN -12.422 LB/15 MM GRAND MEAN - 16.788 LB/15 MM

L 1 39 3.63 -.05 -.31 .1 1 .71 4. 74 -.24 -. 94 .20 .88 20H Li 39

L21 1 11.19 7.50 46*54 .89 5.99 12. 95 7.97 31. 16 1.15 S. 17 201 L21 i L250I 3. 13 -.55 -3.40 .11 .77 4.21 -.76 -2.98 .22 .96 20L L250I

L25 1 3.21 -.47 -2.94 .45 3.0 1 4. 19 -.79 -3.07 .22 1.00 201 L251 TOTAL NUMBER OF LABORATORIES REPORTING - 52

Best values: J71 3.7 + 0.2 kilonewton per meter

K39 4.9 + 0.3 kilonewton per meter

The following laboratories were omitted from the grand means because of extreme test results: 616.

Data from the following laboratories appear to be

off by a multiplicative factor: 558.

26
REPORT NO* 58S TAPP I COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T20-1 TABLE 2 TENSILE BREAKING STRENGTH* KILO NEWTON S PER METER

TAPPI STANDARD T494 0S-7O, TENSILE BREAKING PROPERTIES OF PAPER <& PAPERBOARD < CONSTANT RATE

LAB CODE F MEANS

J71 K39 CG6EDINATES

MAJ6E MINSK AVG

R® SDK VAR PROPERTY-— -TEST INSTRUMENT CONDITIONS

L55 8 * • 75 .98 -4.93 .57 .36 20 A TENSILE STRENGTH* PRIMARILY PRINTING PAPERS, L616 2*76 3.65 -1.61 .15 .71 20D TENSILE STRENGTH* PRIMARILY PRINTING PAPERS, L250I 3* 13 4.21 -.94 .10 .67 20L TENSILE STRENGTH, PRINTING PAPER, CRE, 20 C, L25 1 3*21 4. 19 -.92 .02 2.01 201 TENSILE STRENGTH, PRINTING i PAPER, CRE, 20 C, L36 0 o 3.39 4. 63 -.45 .08 .91 20 B TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L226C o 3.39 4. 57 -.50 .05 1.49 20C TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L3I5 0 3.41 4.65 -.42 .08 1.08 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L352 X 3.44 4. 14 -. 85 -.20 1.04 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS.

LI 94 0 3.44 4.64 -.42 .04 1.13 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L32 5 0 3.49 4. 80 -.25 .08 .90 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L255 0 3.54 4. 81 -.22 .04 1.00 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L141T 0 3.55 4. 84 -. 19 .05 .98 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L26 0 0 3.56 4. 95 -.09 .10 .73 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L23 0 0 3.56 4.93 -. 1 1 .08 .65 200 TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 85 0 3.57 4.73 -. 27 -.03 1.30 20C TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L356 0 3.57 4. 87 -. 15 .04 .86 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L57 5 o 3.57 4. 79 -.22 .00 .94 20 G TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L563A o 3.58 5.02 -.01 .11 1.72 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L i 24C e 3.60 4.72 -.27 -.05 1.28 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L29 1 0 3.62 4.59 -.37 -. 13 1.16 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L278 o 3.62 5. 07 . 05 .10 .99 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L309 0 3 n 62 4.77 -.22 -.05 1.07 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L243 0 3.63 4. 84 -. 15 -.02 .67 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 39 3.63 4.74 -.23 -.07 .79 20H TENSILE STRENGTH, PRINTING PAPER, CRE, SHORT L559 0 3.63 4.93 -. 06 .02 .83 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L557 0 3.65 4. 76 -.21 -.08 .98 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L56 7 0 3.65 5.09 .08 .09 1.30 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 48 0 3.65 4. 89 -.09 -.02 .79 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 59 0 3.66 5.06 . 06 .06 1. 04 20A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, L122 0 3.67 5.02 . 03 .03 .72 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L592 0 3.67 4.99 .01 .02 .95 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 05 0 3.69 5.02 .04 .01 1.49 2 0A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

Li 00 0 3.7 1 4.73 -.20 -. 14 .74 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 9 OR 0 3.71 4.77 -.17 13 .76 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L223B 0 3.72 5.07 . 10 .01 .82 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L442 0 3.73 4. 94 -.01 -.06 .44 20 G TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L34 4 0 3.73 5. 10 . 13 .02 1.36 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L57 4 0 3.73 5.02 . 06 -.02 .98 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 18 0 3.75 4. 87 -. 06 -.11 .83 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

Li 3 1 0 3.75 5. 20 .22 .05 .90 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L26 I 0 3.76 5. 16 .20 .02 1.03 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L32 8 * 3.77 5.54 .53 .20 1.92 20A TENSILE STRENGTH, PRIMARILY PRINTING FAPERS, L333 0 3.84 5. 03 . 12 -.11 .79 2 0 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 2 5 0 3.85 5.44 .48 .09 1.43 20C TENSILE STRENGTH, PRIMARILY PRINTING PAPERS.

LI 67 0 3.85 5. 34 .40 .03 1.29 20G TENSILE STRENGTH, PRIMARILY PRINTING PAPERS.

L587 o 3.88 5.27 . 36 -.02 .95 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L I 43 0 3.94 5. 24 . 35 -.09 1.05 20 E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L39 0 0 3.96 5. 26 .38 -.10 .76 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 63 0 3.96 5. 22 . 35 -.12 .92 20D TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L331 * 3.98 5.07 .23 -.21 1.14 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L563B * 4. 13 5.77 .90 .00 .98 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS.

L21 1 11.19 12. 95 10.64 -2.57 5.58 201 TENSILE STRENGTH, PRINTING PAPER, CRE . 20 C, GMEANS: 3.68 4.98 95% ELLIPSE: .75 .21 1.00 WITH GAMMA “ 60 DEGREES

OF ELONGATION)

LOAD CELL ( CRE

)

LOAD CELL ( CRE D 65% RH 65% RH LOAD CELL ( CRE

)

LOAD CELL ( CRE LOAD CELL (CRE) LOAD CELL ( CRE

)

LOAD CELL (CRE) LOAD CELL ( CRE t LOAD CELL ( CRE

)

LOAD CELL (CRE)

LOAD CELL (CRE) LOAD CELL ( CRE

)

LOAD CELL (CRE) LOAD CELL ( CRE

)

LOAD CELL (CRE) LOAD CELL (CRE)

LOAD CELL (CRE)

LOAD CELL (CRE)

LOAD CELL (CHE) LOAD CELL ( CRE

)

LOAD CELL (CRE) TEST SPAN LOAD CELL (CRE) LOAD CELL (CRE) LOAD CELL ( CRE

)

LOAD CELL ( CRE > LOAD CELL (CRE)

LOAD CELL (CRE) LOAD CELL (CRE)

LOAD CELL ( CRE

)

LOAD CELL (CRE)

LOAD CELL (CRE) LOAD CELL (CRE)

LOAD CELL (CRE)

LOAD CELL (CRE)

LOAD CELL ( CRE

)

LOAD CELL (CRE)

LOAD CELL ( CRE

)

LOAD CELL (CRE)

LOAD CELL (CRE) LOAD CELL (CRE) LOAD CELL ( CRE

)

LOAD CELL (CRE)

LOAD CELL (CRE) LOAD CELL (CRE) LOAD CELL (CHE)

LOAD CELL (CRE) LOAD CELL ( CRE

)

LOAD CELL ( CRE

i

65% RH

27
TENSILE STRENGTH, CRE TYPE

o

o

CM

O

CD

O

CO

21 O

LO l>

CD

o

CO

o

LO

O

SAMPLE J71

SAMPLE J71

3.68 K I L0NEWT0N/M SAMPLE K39

12.42 LB/15 MM SAMPLE K39

4.98 KIL0NEWT0N/M

16.79 LB/15 MM

KIL0NEWT0N/M

I I

1

\

1 1 1 1 1 1 1 1 1

1 9.5 10.5 11.5 12.5 13.5 14.5 15.5

LB/15 MM

28
REPORT NO. 58S TAPPX COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T20-2 TABLE 1 TENSILE BREAKING STRENGTH, KILO NEWTONS PER METER

TAPPI STANDARD T404 OS-76, TENSILE BREAKING STRENGTH OF PAPES AND PAPERBOARD ( PENDULUM- TYPE TESTER)

SAMPLE PRINTING SAMPLE PRINTING TEST D. 20 LAB J71 76 GRAMS PER ,SQUARE METER K39 75 GRAMS PER :SQUARE METER CODE MEAN DEV N.DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI 03 3 # 94 .18 .99 .12 ,65 5.24 .20 .97 .17 .70 20S 0 LI 03

LI 08 4# 10 .34 1.87 .14 .77 5.33 .29 1.40 .29 1.23 2 OP 0 LI 08

LI 2 1 4 o O 1 .25 1.38 .19 1.10 5. 19 . IS .70 .12 .49 20P 0 LI 2

L124P 3# 65 -» 1 1 -.64 .20 1.12 5.09 .05 .23 .24 1.01 20P 0 L124P

LI 28 3.66 -. 1 1 -.61 .14 . 82 5. 05 .01 . 06 .23 .96 20T 6 Li 28 Ll*8 3.66 1 1 -.60 .14 .80 4.94 10 -.47 . 19 .78 2 OP 0 L 1 48

LI 5

8

345# 86 342.09 1912.63 6.33 35. 8 8 47 1 © 06 466.02 2244.48 18.18 76.59 2 OT 0 Li 58 L162 3# 84 .06 .42 .13 .74 4.79 -.25 -1.20 .14 .61 20* fr L 1 62 L182L 3# 62 -.15 -.65 .13 .71 4.90 -.14 -.67 .22 .94 20T 0 LI 82L

LI 89 3# 93 .17 .94 .15 . 87 5.44 .40 1.91 .28 1. 17 20R 0 LI 89 L191P 3. 78 .01 .07 .12 .66 4.88 -. 16 -.78 .15 .64 20P 0 LI 91P

L212 3.52 -.25 -1.39 . 16 .91 4.71 -.33 -1.59 .17 .74 20R 0 L2 12 L213 3.37 -.40 -2.23 . 19 1. 10 4.68 -.36 -1.73 .49 2.06 20T 0 L213

L2i 8 3.68 -.09 -.50 .12 .70 4. 99 -.05 -.26 .24 1.01 20P 0 L218

L23 3 3.56 -.2 1 -1.17 .16 .93 4.76 -.29 -1.37 .27 1.13 200 0 L2 33

L241 3.89 .12 .70 .23 1.30 5. 13 .09 .43 .21 .87 2 OR 0 L24 l L242 3.54 -.23 -1.29 .16 .92 4e 80 -.24 -1.18 .24 1.03 20Y e L242

L24 9 3.58 -.19 -1.04 .22 1.25 4.82 -.22 -1.07 .19 .79 20P 0 L249

L259 3.56 -.21 -1.16 .28 1. 58 4.93 -. 1

-.53 .20 .85 2 OP 0 L259 L262 3.76 -.00 -.02 .19 1.10 5.25 .21 1.01 .22 .93 20R 0 L262

L27 5 3.88 .12 .66 .20 1.14 5. 18 .14 .68 .24 1.01 20R 0 L275 L279P 3.90 .13 .75 .09 . 52 5. 15 . 1 1 .52 .41 i.74 2 OP 0 L279P L285 3.26 -.51 -2. 83 .08 .46 4. 16 -.88 -4.23 . 1 1 .46 20P tf L285

L29 0 3.70 -.06 -.36 .17 .97 5.00 -.04 18 .23 .96 20P 0 L290

L31 l 3.60 -.17 -.93 .16 .90 4. 82 -.22 - 1.06 .26 1.08 20V 0 L3 1 i

L321 3.16 -.61 -3.40 .16 .91 4.01 -1.03 -4.98 .23 .99 200 0 L321 L330 3.97 .20 1.13 .25 1.40 5.20 .16 .76 .27 1.16 20P 0 L3 3Q L356 3.93 .16 .91 .24 1.37 5. 19 . 15 .70 .24 1.00 20P 0 L356

L37 0 3.66 -.11 -.61 .15 .83 5.02 -.02 -.12 .20 .83 20P 0 L370 L376 3.72 1 9 © -.24 .22 1.25 4.90 -.14 -.67 .23 .95 20P 0 L376 L393 3.89 .12 .69 .14 .79 5. 26 .22 1.04 .26 1,09 20P 0 L393 L554 4.54 .77 4.30 .15 . 85 5.74 .70 3.38 .22 . 95 20P tt L554 L556 4. 10 .33 1.65 .15 . 88 5. 50 .46 2.22 .27 1.12 20P 0 L556 L585 3.89 .13 .72 .19 1.08 5.22 . 18 .86 .30 1.28 20V 0 L585

L59 9 3.68 -.09 -.48 .19 1. 10 4. 89 15 -.73 .27 1.13 20V 0 L599

L626 3. 79 .03 . 15 . 14 .79 4.92 -.12 -.60 .18 .76 20T 0 L6 26 L680 3. 72 -.05 -.25 .26 1.48 5.03 -.01 -.03 . 16 .67 20R 0 L6 80 L692 3.97 .21 1.15 .21 1.20 5.20 .16 .76 .21 .90 20P 0 L692

GR. MEAN 3.77 KI L43 NEW TON/M GRAND MEAN * 5.04 KIL0NEWT0N/M TEST DETERMINATIONS - 20

SD MEANS .18 KIL0NEWT0N/M SD GF MEANS • 21 KIL0NEWT0N/M 34 LABS IN GRAND MEANS AVERAGE SDR - .18 KIL0NEWT0N/M AVERAGE SDR - .24 KIL6NEWTeN/M

GR# MEAN •12.704 LB/15 MM GRAND MEAN - 17.001 LB/15 MM

TOTAL NUMBER OF LABORATORIES REPOSTING » 38

Best values: J71 3,7 + 0.3 kilonewton per meter

K39 5.0 + 0.3 kilonewton per meter

The following laboratories were omitted from the grand means because of extreme test results: 285,

321, 554.

Data from the following laboratories appear to be

off by a multiplicative factor: 158.

29
REPORT NO. 58S TAPP I COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T20-2 TABLE 2 TENSILE BREAKING STRENGTH, KILONEWTONS PER METER

TAPPI STANDARD T404 OS-76, TENSILE BREAKING STRENGTH eF PAPER AND PAPERBOARD (PENDULUM-TYPE TESTER)

LAB MEANS ceeBu:INA1ES AVG

CODE F J71 K39 UAJ3B MIN8R So SDK VAB PROPERTY TEST INSTRUMENT CONDITIONS

L32 i t* 3® i 6 4.01 -1. 18 -.20 .95 200 TENSILE STRENGTH, PRIMARILY PRINTING PAPEBS, PENDULUM TESTER

L2 65 tt 3 © 26 4. 16 -1.00 -.18 .46 20f> TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTES

L213 0 3.37 4.68 -.S3 .07 1.58 20T TENSILE STRENGTH. PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L2 1 2 6 3.52 4.71 -.41 -.02 .83 20B TENSILE STRENGTH, PBIMABILY PRINTING PAPEBS, PENDULUM TESTER

L24 2 0 3.54 4. 80 -.34 .02 .97 20Y TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L233 0 3.56 4.76 -.35 -.02 1.03 200 TENSILE STRENGTH, PBIMARILY PRINTING PAPEBS, PENDULUM TESTER

L2 59 0 3.56 4.93 -. 22 .09 1.22 20 P TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L249 0 3.58 4. 62 -.29 -.00 1.02 20 P TENSILE STRENGTH, PBIMABILY PRINTING PAPEBS, PENDULUM TESTER

L3 1

1

0 3.60 4. 82 -.28 -.01 .99 20V TBNSILE STRENGTH, PBIMABILY PRINTING PAPEBS. PENDULUM TESTER

L182L 0 3.62 4.90 -.20 .03 .82 20T TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L124P 0 3.65 5.09 -.04 .12 1.07 20P TENSILE STRENGTH, PBIMABILY PRINTING PAPEBS, PENDULUM TESTER

L37 0 0 3.66 5.02 -.09 .07 .83 20P TENSILE STRENGTH, PBIMABILY PRINTING PAPEBS, PENDULUM TESTER

LI 2 8 0 3.66 5.05 -. 06 .09 .89 20T TBNSILE STRENGTH, PBIMABILY PRINTING PAPEBS, PENDULUM TESTER

LI 4 8 0 3.66 4.94 -. 14 .02 .79 20P TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L218 0 3.68 4.99 -. 10 .03 .86 20P TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L599 0 3.68 4. 89 -. 17 -.03 1.12 20 V TBNSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L29 0 0 3.70 5.00 -.07 .02 .96 20P TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L6 8 0 0 3.72 5.03 -.03 .03 1.08 20 R TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L37 6 0 3.72 4.90 -. 13 -.06 1.10 20 P TENSILE STRENGTH. PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L26 2 o 3.76 5. 25 . 16 . 14 1.02 20R TENSILE STRBNGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L19 IP 0 3.78 4.88 -. 12 -. 1 1 .65 20P TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L626 0 3.79 4.92 -. 08 -.10 .77 20T TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

LI 62 * 3.84 4. 79 -. 14 -.22 .67 20* TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L27 5 o 3.88 5. 18 .18 .00 1.06 20 B TENSILE STRENGTH, PRIMAFILY PRINTING PAPERS, PENDULUM TESTER

L39 3 0 3.89 5. 26 .24 .04 .94 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPEBS, PENDULUM TESTER

L241 0 3.89 5. 13 . 15 -.04 1.09 20B TENSILE STRENGTH. PRIMAFILY PRINTING PAPERS, PENDULUM TESTES

L585 o 3.89 5.22 .22 .02 1. 18 20 V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L279P 0 3.90 5. 15 . 17 -.03 1.13 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L3 56 o 3.93 5. 19 .22 -.03 1.19 20P TENSILE STRENGTH, PBIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 89 0 3.93 5.44 .41 . 13 1.02 20 B TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

Li 03 0 3.94 5. 24 .27 -.01 .68 20B TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L330 0 3.97 5. 20 .25 -.05 1.28 20 P TENSILE STRENGTH. PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L69 2 0 3.97 5.20 .25 -.06 1.05 20 P TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

L 1 2 1 0 4.01 5. 19 .27 -.10 .80 20P TENSILE STRENGTH. PRIMARILY PRINTING PAPBRS, PENDULUM TESTER

L556 0 4. 10 5. 50 . S7 .04 1.00 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 0 8 0 4. 10 5.33 .44 -.07 1.00 20 P TENSILE STRENGTH, PBIMABILY PRINTING PAPEBS. PENDULUM TESTER

L554 * 4.54 5. 74 1.03 -. 14 .90 20 P TENSILE STRENGTH, PBIMABILY PRINTING PAPERS. PENDULUM TESTER

LI 58 * 345.86 471.06 576. 89 37.47 56.24 20 T TENSILE STRENGTH, PBIMABILY PRINTING PAPERS, PENDULUM TESTER

GMEANS

3.77 5.04 1.00 95% ELLIPSE: .69 .19 WITH GAMMA - 50 DEGREES

30
KIL0NEWT0N/M

TENSILE STRENGTH, PENDULUM TYPE

in

LO

SAMPLE J71

SAMPLE J71

3.77 K I L0NEWT0N/M SAMPLE K39

12.70 LB/15 MM SAMPLE K39

5.04 K I L0NEWT0N/M

17.00 LB/15 MM

10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0

LB/15 MM

31
REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T25-1 TABLE 1 TENSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PACKAGING PAPER

TAPPI STANDARD T494 0S-70, TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 20 LAB J01 98 GSAMSi PER SQUARE METER J16 149 GRAMS1 PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI 06 57. 1 -17.4 -1.87 11.1 1. 26 69.4 -49. 4 -2.35 7.8 .67 25F 0 LI 06

LI 22 86.4 13,9 1.50 7. 1 .81 142.3 23.5 1. 12 8.3 .72 2 5P o LI 22

LI 26 74.3 -.2 -.02 12. 9 1.46 125.8 7.0 .33 12.5 1.08 25G 0 LI 26

LI 51 68.6 -5.9 -.63 10.5 1.19 119®?. .2 .01 e.3 .72 25F 0 LI 5

LI 82 76.5 2.0 .21 7.8 . 88 i te.4 -.4 -.02 9.6 .83 25B 0 LI 82

L234A 69.1 -5.4 -.56 a. l .92 121.9 3. 1 .15 16.6 1.43 25H 0 L234A L237B 73.8 -.7 -.07 6. 1 .69 111.1 -7.7 -.37 7.6 .65 25H 0 L237B

L24 3 78.3 3. 8 .41 5.4 .61 121. 1 2.3 . 1 1 8.2 .71 25Z 0 L243

L250 72.4 -2. 1 -.23 6.6 .74 1 16. 1 -2.7 -.13 10.4 .90 25A o L250

L26 4 71.9 -2.6 -.28 6.7 .76 1 16. 1 -2.7 -.13 12. 3 1.06 25F 0 L264

L267 87.2 12.7 1.36 5.3 .60 135.2 16.4 .78 10. 1 .67 25F 0 L267

L26 8 75.3 .8 . 08 1 0.4 1. 18 150.9 32. 1 1. 52 8. 8 .76 25B «- L268

L273 84.0 9.5 1.02 10. 1 1. 14 127.6 8.8 .42 18. 0 1.56 25F 0 L273

L28 0 67.6 -6.9 -.75 18.5 2. 09 107.8 -11.0 -.52 22. 8 1.97 2 5B 0 L280 L312 91.9 17.4 1.87 5.8 .66 153.5 34.7 1.65 12.4 1.07 25J 0 L312

L5 80 71.0 -3. 5 -.38 9.4 1.06 100.7 -18. 1 -. 86 11.3 .97 25C 0 L580

L604 58. 1 -16. 4 -1.76 10.3 1.17 81.8 -37.0 -1.76 13. 8 1. 19 25A 0 L6 04 L669 75.6 1.1 . 12 8. 5 .96 1 19.9 1.0 .05 7. 1 .61 25F 0 L689

GR. MEAN - 74.5 J0ULES/SQ M GRAND MEAN • 118.8 J0ULES/SQ M TEST DETERMINATIONS - 20 SD MEANS 9.3 J0ULES/SC M SD OF MEANS - 21.1 JOULES/SQ M 18 LABS IN GRAND MEANS AVERAGE SDR - 8® 8 JOULES/SQ M AVERAGE SDR - 11.6 JOULES/SQ M GR. MEAN - 5.104 FT • LB/ SC FT GRAND MEAN - 8.138 FT.LB/SQ FT TOTAL NUMBER OF LABORATORIES REPORTING - 18

Best values: J01 75 + 16 joules per square meter

J16 119 + 37 joules per square meter

REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T25-1 TABLE 2 TENSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PACKAGING PAPER

TAPPI STANDARD T494 0S-70, TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS COORDINATES AVG CODE F JOl J 1 6 MAJOR MIN0R fi. SDR VAR PROPERTY TEST INSTRUMENT-- -CONDITIONS

L 1 06 0 57. 1 69.4 -52.4 -2. 1 .97 25F TENSILE ENERGY ABS® , PACKAGING PAPER. LINE/FLAT JAWS

L604 0 58. 1 81.8 -40.5 1.6 1.18 25 A TENSILE ENERGY ABS® , PAC KAGING PAPER, FLAT/FLAT JAWS

L2 80 o 67.6 107.8 -12.8 2.4 2. 03 25B TENSILE ENERGY ABS® , PACKAGING PAPER, LINE/FLAT JAWS

LI 5 1 o 68.6 1 19,1 -1.9 5. 5 .95 25F TENSILE ENERGY ABS® , PACKAGING PAPER, LINE/FLAT JAWS L234A 0 69. 1 121.9 .9 6.2 1.17 25H TENSILE ENERGY ABS® , PACKAGING PAPER, 2-PIN STRAIN GAGE

L580 0 71.0 100.7 -18. 1 -3.4 1.02 25C TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/LINE JAWS

L264 a 7 1 o 9 116. 1 -3.5 1.4 .91 25F TENSILE ENERGY ABS® .PACKAGING PAPER , L I NE/FLAT JAWS

L250 0 72.4 1 16. 1 -3.3 .9 .82 25A TENSILE ENERGY ABS® .PACKAGING PAPER .FLAT/FLAT JAWS

L23 7B 0 73.8 11 1. 1 -7.4 -2.2 .67 25H TENSILE ENERGY ABS® .PACKAGING PAPER, 2-PIN STRAIN GAGE

LI 26 0 74.3 125. 8 6.4 2.7 1.27 25G TENSILE ENERGY ABS® .PACKAGING PAPER, LINE/LINE JAWS

L26 8 « 75.3 150.9 30. 1 1 1. 1 .97 25B TENSILE ENERGY ABS® . PACKAGING PAPER, LINE/FLAT JAWS

L689 0 75.6 119.9 1.4 -.6 .78 25F TENSILE ENERGY ABS® .PACKAGING PAPER. LINE/FLAT JAWS

L 1 82 0 76.5 116.4 • 3 -2.0 .85 25B TENSILE ENERGY ABS® .PACKAGING PAPER, LINE/FLAT JAWS

L2 43 0 78.3 121. 1 3.6 -2.7 .66 25Z TENSILE ENERGY ABS® , PACKAGING PAPER, LINE/LINE JAWS

L273 0 84.0 127.6 11.7 -5.5 1.35 25F TENSILE ENERGY ABS® , PACKAGING PAPER, LINE/FLAT JAWS

L26 7 0 87.2 135.2 20.0 -5.7 .74 25F TENSILE ENERGY ABS® .PACKAGING PAPER. LINE/FLAT JAWS

LI 22 a 88. 4 142.3 27.0 -4. 3 .76 25P TENSILE ENERGY ABS® . PACKAGING PAPER, PATTERNED FLAT JAWS

L312 a 91.9 153. 5 38.6 -3.3 .87 25J TENSILE ENERGY ABS® .PACKAGING PAPER , LI NE/FLAT JAWS

GMEANS: 74.5 118.8 1.00 95% ELLIPSE: 62. 8 12.4 WITH GAMMA - 68 DEGREES

32
J0ULES/SG

M

T .E .R PRCKRGI NG PRPERS

SAMPLE JOl = 75.

SAMPLE JOl =5.1

J0ULES/SQ M FT.LB/SQ FT

SAMPLE J 1

6

SAMPLE J 1

6

1 19

8.1

J0ULES/SQ M FT.LB/SQ FT

CD

+ ,X ,n N0T IN GRAND MEANS

ANALYSIS T25-1

LJ

_J

Q_

x:

crCD

K

o

o

©

©

©

©

$

©

TT

c ©

©

©

©

SRMPLE JOl

"To" Too no 1*20 10 40 50 60 70 80 90 130 MO 150

J0ULES/SQ M

4 5 6 FT.LB/SQ FT

10

33
BEPORT NO. 58S TAPPI CO IXAB6RATI VE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS 126-1 TABLE 1 TENSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PRINTING PAPER

TAPPI STANDARD T494 OS-70, TENSILE BREAKING PROPERTIES OF PAPER 4 PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE PRINTING TEST I>•- 20 LAB J7 & 76 GRAMS PER SQUARE METER K39 75 GRAMS PER SQUARE METER

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

L 100 4 1*5 1.1 .27 2.7 .60 50.4 -4.0 -. 72 2.5 .43 26A 0 L 1 00

LI 1 6 43*5 3. 1 . 80 3.6 .81 56.2 1.7 .32 6.4 1.10 26E 0 LI 18

LI 22 45* 1 4.7 1.19 4.7 1.05 63.2 8. 8 1.58 7.3 1.26 26L 0 LI 22

LI 39 41*4 1.0 .25 3.9 .89 55.2 . 8 .14 5.9 1.02 26H 0 LI 39

LI 59 43*4 3.0 .75 5.8 1.31 62.3 '.9 1.42 7. 1 1.23 26F 0 L 1 59

LI 63 39*5 -.8 -.21 4.9 1. 10 51.1 -3.3 -.60 6.2 1.07 26J 0 LI 63

LI 6 7 38*5 -1.8 -.46 2. 1 .48 53.4 -1.0 -. 19 2.5 .44 26D 0 L 1 67

LI 85 36.0 -4.4 -1.11 4.7 1.05 50.7 -3.7 -.67 9. 1 1.57 26C 0 LI 85 L21 1 87.8 47.4 11.98 1 1.2 2.53 1 19.2 64. 8 1 1.70 14.7 2.54 26Z * L2 1

L250 38.4 -1.9 -.49 4.5 1.00 50.7 -3.7 -.67 6.0 1.04 26A 0 L250

L25 5 36.5 -3.9 -.99 5.0 1.12 51.5 -2.9 -.52 6.7 1.16 26P 0 L255 L309 41.8 1.4 .35 4. 1 .93 55.5 1.0 .18 7.3 1.26 26J 0 L309

L356 21.3 -19. 1 -4.82 2.2 .49 30.9 -23.5 -4.25 3. 1 .54 26A U L356

L393 39. 8 -.6 -. 14 3.0 .67 55.5 1.0 .19 4.8 .82 26V 0 L393

L442 51.2 io. e 2.74 3.0 . 68 67.0 12.6 2. 27 3.2 .56 26B 0 L442

L56 7 34.7 -S.7 -1.44 7.8 1.74 46.4 -8.1 -1.46 5.9 1.02 26A 0 L567

L57 5 39.0 -1.4 -.35 5.6 1.26 50.8 -3.6 -.66 5. 8 1.01 26A 0 L575

L567 38.7 -1.7 -.43 4.8 1. 09 57.2 2.8 .50 6.4 1.11 26C 0 L5 87 L592 37.6 -2.8 -.71 5. 5 1.23 48.3 -6.2 -1.11 5.2 .89 26B 0 L592

GR. MEAN - 40.4 JOULES/SC M GRAND MEAN - 54.4 JOULES/SQ M TEST DETERMINATIONS - 20

SD MEANS • 4.0 JOULES/SC M SD OF MEANS • 5.5 JOULES/SQ M 17 LABS IN GRAND MEANS AVERAGE SDR • 4.4 J0ULES/SQ M AVERAGE SDR • 5. 8 J 6ULES/SQ M GR* MEAN - 2.767 FT.LB/SQ FI GRAND MEAN • 3.729 FT.LB/SQ FT TOTAL NUMBER OF LABORATORIES REPORTING - 19

Best values: J71 41 + ft joules per square meter

K39 54+9 joules per square meter

Data from the following laboratories appear to be

off by a multiplicative factor: 211, 356.

REPORT NO. S8S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T26-1 TABLE 2 TENSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PRINTING PAPER

TAPPI STANDARD T494 0S-70, TENSILE BREAKING PROPERTIES OF PAPER 4 PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS COORDINATES AVG C0DE F J71 K39 MAJOR MINOR 5. SDR VAR PROPERTY TEST INSTRUMENT- --CONDITIONS

L356 U 21.3 30.9 -30.2 2.5 • 52 26 A TENSILE ENERGY ABS. .PRINTING PAPERS. FLAT/FLAT JAWS

L56 7 0 34.7 46.4 -9.9 . 1 1.38 26A TENSILE ENERGY ABS. .PRINTING PAPERS. FLAT/FLAT JAWS

L l 85 0 36.0 50.7 -5.6 1.5 1.31 26C TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/LINE JAWS

L255 0 36. 5 51.5 -4.6 1.6 1.14 26P TENSILE ENERGY ABS. .PRINTING PAPERS. PATTERNED FLAT JAWS

L592 0 37.6 48.3 -6.7 -1.2 1.06 26 H TENSILE ENERGY ABS. .PRINTING PAPERS. 2-PIN STRAIN GAGE

L250 0 38. 4 50.7 -4. 1 -.5 1.02 26 A TENSILE ENERGY ABS. .PRINTING PAPERS. FLAT/FLAT JAWS

L 1 6 7 0 38. 5 53.4 -1.9 .9 .46 26 D TENSILE ENERGY ABS. .PRINTING PAPERS. 2-PIN STRAIN GAGE

L587 0 38.7 57.2 1.3 3.0 1.10 26C TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/LINE JAWS

L575 0 39.0 50.8 -3. 8 -.9 1.13 26A TENSILE ENERGY ABS. .PRINTING PAPERS. FLAT/FLAT JAWS

LI 63 0 39.5 51.

-3.2 -1.2 1.08 26 J TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/FLAT JAWS

L393 0 39.8 55.5 .5 1.0 .75 26 V TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/FLAT JAWS

LI 39 0 41.4 55.2 1.2 -.4 • 96 26 H TENSILE ENERGY ABS. , PRINTING PAPERS, 2-PIN STRAIN GAGE

LlOO 0 41.5 50.4 -2.7 -3. 1 • 52 26A TENSILE ENERGY ABS. .PRINTING PAPERS, FLAT/FLAT JAWS

L309 0 41.8 55. 5 1.6 -.6 1.09 26J TENSILE ENERGY ABS. .PRINTING PAPERS, LINE/FLAT JAWS

LI 59 0 43.4 62.3 8.2 2. 0 1.27 26F TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/FLAT JAWS

LI 18 0 43. 5 56.2 3.2 -1.6 • 96 26 E TENSILE ENERGY ABS. .PRINTING PAPERS. FLAT/FLAT JAWS

LI 22 0 45. 1 63.2 9.9 1.1 1. 16 26L TENSILE ENERGY ABS. , PRINTING PAPERS. PATTERNED FLAT JAWS L442 0 51.2 67.0 16.5 -1.9 • 62 26 B TENSILE ENERGY ABS. .PRINTING PAPERS, LINE/FLAT JAWS

L21 1 H 87, 8 119.2 80.2 -2.6 2.54 26Z TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/LINE JAWS

GMEANS: 40. 4 54.4 1.00 95% ;ELLIPSE: 16.5 4.5 WITH GAMMA - 55 ]DEGREES

34
CD

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CD

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T =E =A = , PRINTING PAPERS

SRhPLE J71 = 40.

SAMPLE J71 = 2.77

J0ULES/SQ M FT.LB/SQ FT

SAMPLE K39

SAMPLE K39

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J0ULES/SQ M FT.LB/SQ FT

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50 55 60

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2=4 2=8 3.2

FT=LB/SQ FT

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3=6 4=0

35
REPORT NO. 58S TAP P I COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T28-1 TABLE 1 ELONGATION TO BREAK. PERCENT - PACKAGING PAPES

TAPPI STANDARD T494 0S-70. TENSILE BREAKING PROPERTIES OF PAPER 4 PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D>• * 20 LAB JOl 98 GEAMS PER SQUARE METER J 1

149 GRAMS PER iSQUARE METER CODE MEAN DEV N. DEV SD5 R. SDR MEAN DEV N .DEV SDR R. SDR VAR F LAB

LlOO 2*095 -.021 16 .094 .54 2.005 -.151 -.63 .069 .53 28A e LlOO

06 1*930 -« 186 -1.45 .313 1. 80 1.610 -.546 2.27 .121 .94 28B 0 LI 06

LI 2

2.335 .219 1.70 • 129 .74 2.464 .308 1.28 .087 .68 28P 0 L 1 22

L 1 26 1*946 -. 170 -1.32 .2 12 1.22 2.096 -.060 -.25 .136 1.06 28C 0 LI 26 1151 1*960 -. 156 -1.22 .221 1.27 2* 120 -. 036 -.15 .22 8 1.78 28B 0 LI 51

LI 82 2.075 -.04 1 -.32 • 133 .77 2. 1 10 -.046 -.19 .091 .71 28B 0 LI 82 L243 2.090 -.026 -.20 .110 .64 2. 1 18 -.038 -. 16 .088 .69 2 8C 0 L243

L264 2.220 .104 .81 .242 1.39 2.100 -.056 -.23 . 169 1.31 28B 0 L264

L26 5 2. 197 .081 .63 .118 .68 2.209 .053 .22 .083 .64 2 8A 0 L265

L26 7 2.269 . 153 1.19 . 086 .50 2.271 • 115 .48 .099 .77 28B 0 L267

L268 2.045 -.071 -.55 .206 1. 19 2. 500 .344 1.43 • 145 1.13 28B 0 L268

L280 2.089 -.027 -.21 .306 1.77 2.099 -.057 -. 24 .273 2. 13 2 8B 0 L280

L312 2.290 .174 1.35 . 107 .62 2.610 .454 1. 89 • 148 1. 15 2 8B 0 L312

L32 4 2.005 -.111 -.87 • 136 .78 2. 1 10 -.046 -. 19 . 107 . 83 28P 0 L324 L336 2.292 • 176 1.37 .219 1.26 2.332 .176 .73 .117 .91 28A 0 L336

L580 2.055 -.061 -.48 . 196 1. 13 1.620 -.336 1.40 . 132 1.03 28C 0 L580

L56 l 2.069 -.047 -.37 . 160 .92 NO DATA REPORTED FOR SAMPLE J 16 2 8A M L581

L6 89 2.060 -.036 -.28 . 120 .69 2.060 -.076 -.32 .089 .70 2 8B 0 L6 89

GR * MEAN • 2.116 PERCENT GRAND MEAN - 2.156 PERCENT TEST DETERMINATIONS - 20

SD MEANS - .128 PERCENT SD ep MEANS .240 PERCENT 17 LABS IN GRAND MEANS

AVERAGE SDR -

. 173 PERCENT AVERAGE SDR • . 128 PERCENT

L153 2.650 .534 4. 16 .185 1.07 2.615 .459 1.91 • 150 1.17 2 8Q L153

TOTAL NUMBER OF LABORATORIES REPORTING * 19

Best values: J01 2.12 + 0.18 percent

J16 2.16 + 0.35 percent

REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T28-1 TABLE 2 ELONGATION TO BREAK, PERCENT - PACKAGING PAPER

TAPPI STANDARD T494 OS-70, TENSILE BREAKING PROPERTIES OF PAPER 4 PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS COORDINATES AVG C0DE F JOl J 1 6 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST INSTRUMENT CONDITIONS

Li 00 1.930 1.610 -.576 -.034 1.37 2 8B ELONGATION, PACKAGING PAPER. L0AD CELL, LINE/FLAT JAWS

LI 26 0 1.946 2.096 -.120 • 134 1. 14 28C ELONGATION, PACKAGING PAPER. L0AD CELL, LINE/LINE JAWS

L 1 5 1 0 1.960 2. 120 -.092 • 131 1.53 28B ELONGATION, PACKAGING PAPER. L0AD CELL, LINB/FLAT JAWS

L324 0 2.005 2. 110 -.085 .085 • 81 28P ELONGATION, PACKAGING PAPER, L0AD CELL, PATTERNED FLAT JAWS

L268 0 2.045 2.500 .292 . 196 1.16 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

L580 0 2.055 1.820 -.334 -.070 1.08 28C ELONGATION, PACKAGING PAPER, L0AD CELL. LINE/LIME JAWS

L581 M 2.069 n 92 28A ELONGATION. PACKAGING PAPER, L0AD CELL. FLAT/FLAT JAWS

LI 82 0 2. 075 2. 1 10 -.058 .02 1 .74 28B ELONGATION, PACKAGING PAPER. L0AD CELL, LINB/FLAT JAWS

L689 0 2.060 2.080 -.084 . C 05 • 69 28B ELONGATION, PACKAGING PAPER, L0AD CELL, LINE/FLAT JAWS

1*280 0 2.089 2.099 -.063 .004 1.95 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

L24 3 0 2.090 2. 1 18 -.045 • 010 .66 28C ELONGATION, PACKAGING PAPER, L0AD CELL. LINE/LINE JAWS

LlOO 0 2.095 2.005 -. 148 -.038 • 54 28A ELONGATION, PACKAGING PAPER, LOAD CELL, FLAT/FLAT JAWS

L26 5 0 2. 197 2.209 .079 -.055 . 66 28A ELONGATION, PACKAGING PAPER, LOAD CELL. FLAT/FLAT JAWS L264 0 2.220 2. 100 -.013 -.117 1.35 2 8B ELONGATION, PACKAGING PAPER. LOAD CELL, LINE/FLAT JAWS

L267 0 2.269 2.271 .165 -.098 .64 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

L312 0 2.290 2.610 .4 66 • 010 • 89 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

L336 0 2.292 2.332 .22 9 -.096 1.09 26A ELO NGATI ON, PACKAGI NG PAPER, LOAD CELL, FLAT/FLAT JAWS

LI 22 0 2.335 2. 464 .368 -.066 • 71 28P ELONGATION, PACKAGING PAPER. LOAD CELL, PATTERNED FLAT JAWS

LI 53 2.650 2.615 .626 -.32 1 1. 12 28Q ELONGATION, PACKAGING PAPER. PENDULUM. PATTERNED FLAT JAWS GMEANS

2. 116 2. 156 1.00 95* ELLIPSE: .720 .255 WITH GAMMA - 67 DEGREES

36
PERCENT

EL0NGRT I 0N T0 BREAK, PACKAGING PAPER

SAMPLE JOl =2.12 PERCENT

1 i i SAMPLE J 1 6 = 2.16 PERCENT —i 1 i L

CO

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ANALYSIS T28-1

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1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2-8 3.0

PERCENT

37
REPORT NO® 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T29-1 TABLE 1 ELONGATION TO BREAK, PERCENT - PRINTING PAPER

TAPPI STANDARD T494 0S-7Q, TENSILE BREAKING PROPERTIES OF PAPES A PAPERBOARD ( CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D." 20 LAB J71 76 GRAMS PEE SQUARE METES K39 75 GRAMS PER SQUARE METER

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

LI 00 1,640 .027 . 15 . 082 • 59 1.630 -.080 -.4 y .057 .44 29A e L100

• 5 1.312 -.300 -1.67 . 197 1.41 1.475 -.235 1.44 . 180 1.39 29A 6 L 1 05

LI 1 8 1.687 .075 .42 .098 • 71 1. 73* - 021 . 13 • 125 .96 2 9A e LI 18

LI 22 1.780 . 167 .93 . 120 . 86 1 .Bf 3 ,174 1. 07 .143 1.10 29P e Li 22 L14 IT 1.566 -.046 -.26 .142 1. 02 t r. - 9 -.031 19 . 165 1.27 29D e L141T

Li 85 1. 504 -.108 -.60 . 157 1. 13 1 o 643 -.067 -.41 . 160 1.24 29C e LI 85 L190R 1.680 .067 .37 .090 .65 1 o 773 .063 .39 • 154 1. 19 29A 0 L190R

L255 1. 564 -.049 -.27 . 136 • 98 1 . 689 -.020 -. 12 .129 .99 29P a L255

L27 8 1.213 -.399 -2.22 . 130 • 93 1.390 -•320 1.97 • 107 .83 29A © L278

L309 1. 840 .227 1.26 .114 . 82 1.895 • 185 1. 14 „ 141 1.09 29A 6 L309

L34 4 1.612 -.000 -.00 . 157 i. 13 1.669 -.041 -.25 . 164 1.26 29A 0 L344

L356 1.735 . 122 .68 . 121 • 87 1.896 .186 1. 15 • 128 .99 29A 0 L356

L442 1.95 1 .338 1.88 .095 • 68 1.993 .284 1.74 .060 .47 29B 0 L4 42 L56 7 1.684 . 072 .40 .236 1.70 1.866 . 156 .96 .125 .96 29A 0 L567

L575 1. 642 .029 .16 . 166 1.20 1.658 -.052 -.32 .117 .90 29A 0 L575

L5 8 7 1.475 138 -.77 . 137 • 99 1 o 685 -.025 -. 15 • 109 .84 29C 0 L587

L592 1.529 -.082 -.46 .184 1.33 1.509 -.201 1.23 • 141 1.08 29D 0 L592

GR® MEAN • 1.613 PERCENT GRAND MEAN - 1.710 PERCENT TEST DETERMINATI6NS - 20

SD MEANS - e 180 PERCENT SD 6F MEANS • . 163 PERCENT 17 LABS IN GRAND MEANS

AVEEAGE SEE *

. 139 PERCENT AVERAGE SDR *

. 130 PERCENT

L242 2.080 .467 2.60 . 154 1.1 1 1.905 . 195 1.20 . 1 10 • 85 29R L242

L626 1.665 . 052 .29 . 127 .91 1.775 • 065 .40 . 107 . 83 29R L626

TOTAL NUMBER OF LABORATORIES REPORTING - 19

Best values:’ J71 1.69 + 0.31 percent

K39 1.70 + 0.28 percent

REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T29-1 TABLE 2 ELONGATION TO BREAK, PERCENT - PRINTING PAPER

TAPPI STANDARD T494 OS-70, TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS COORDINATES AVG C0DE F J71 K39 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L27 8 0 1.213 1.390 -.511 .029 .88 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

LI 05 0 1.312 1. 475 -.380 .026 1.40 29A ELONGATION, PR INTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L587 0 1.475 1.685 -.1 19 .074 • 91 29C ELONGATION, PRINTING PAPERS, LOAD CELL, LINE/LINE JAWS

LI 85 0 1.504 1.643 -.125 .023 1. 18 29C ELONGATION, PR INTING PAPERS. LOAD CELL. LINE/LINE JAWS

L59 2 0 1*529 1. 509 -.196 -.094 1.21 29D ELONGATION. PR INTING PAPERS, LOAD CELL. 2-PIN STRAIN GAGE

L255 0 1. 564 1.689 -.050 .018 .99 29P ELONGATION. PRINTING PAPERS, LOAD CELL. PATTERNED FLAT JAWS

L14 IT 0 1.566 1.679 -.055 .008 1. 15 29 D ELONGATION, PRINTING PAPERS, LOAD CELL, 2-PIN STRAIN GAGE

L34 4 0 1.612 1.669 -.028 -.030 1.19 29A ELONGATION. PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L100 0 1.640 1.630 -.033 -.077 • 52 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L575 0 1.642 1.658 -.013 -.058 1.05 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L626 1.665 1.775 • 082 • 014 • 87 29 R ELONGATION, PRINTING PAPERS, PENDULUM, FLAT/FLAT JAWS

LI 9 OR 0 1.680 1.773 .092 .002 • 92 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L56 7 0 1.684 1.866 • 158 .066 1.33 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

LI 1 8 0 1.687 1.731 .070 -.034 . 83 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L356 0 1.735 1.896 .215 .057 • 93 29A ELONGAT ION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L 1 22 0 1. 780 1.883 .240 .018 • 98 29P ELONGATION, PRINTING PAPERS, LOAD CELL, PATTERNED FLAT JAWS

L309 6 1.640 1.895 .293 -.014 • 95 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L442 0 1 o95 1 1.993 .441 -.015 • 57 29B ELONGATION. PR INTING PAPERS, LOAD CELL, LINE/FLAT JAWS

L242 2.080 1.905 .478 -.167 • 98 29R ELONGATION, PRINTING PAPERS. PENDULUM, FLAT/FLAT JAWS GMEANS: a. 613 1.710 1.00 95% ELLIPSE: .666 .134 WITH GAMMA • 41 DEGREES

38
PERCENT

EL0NGAT I 0N T0 BREAK , PRINTING PAPER

SAMPLE Jll : I .61 PERCENT

I I I I I SAMPLE K39 = 1.71

i __i PERCENT

CO

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COCO

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+ , X , » N0T IN GRAND MEANS

CO^ ANALYSIS T29-1

LU

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SRMPLE J71

0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1-7 1-8 1-9 2.0 2-1 2-2 2.3

PERCENT

39
REPORT NO. 5QS TAFPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T30-1 TABLE 1 FOLDING ENDURANCE (MIT), DOUBLE FOLDS

TAPPI STANDARD T51 1 SU-69

SAMPLE OFFSET PRINTING SAMPLE HEAT SET OFFSET BOOK TEST D. 1 5 LAB B69 94 GRAMS PER SQUARE METER B88 88 GRAMS PER SQUARE METER

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

T 100M 75. -106. -1.35 19. .32 42. -5. -. -0 12. .69 30M O L 1 00 M

0 0 N 85. -96. -1.22 19. .32 42. -5. -.31 17. .92 30N 0 LI 00N

LI 0 5 157. -24. -.30 42. .72 40. -7. -.40 20. 1.11 30M 0 LI 05

LI 1 8 201. 20. .26 51. .87 ' 7 . 0. .01 19. 1.06 30D O LI 18

LI 2 1 2 13. 32. .41 41. .70 5. 18. 1. 10 22. 1.21 30M 0 LI 21

LI 22 246. 66. .83 122. 2.08 74. 27. 1.61 25. 1.37 3 0M o L 1 22

LI 24 248. 67. .es 108. 1. 84 68. 21. 1.24 33. 1.83 30N e LI 24

LI 5 0 232. 51. .65 76. 1. 29 42. -5. -.31 18. 1.00 30M 0 LI 50

LI 5 8 64. -117. -1.49 42. .72 19. -28. -1.70 12. .66 30N e L 1 58

LI 59 237. 56. .72 65. 1.11 48. 1. . 08 19. 1.03 30N e LI 59

L162 153. -28. -.35 49. . 83 39. -8. -.50 18. 1.02 30M 0 L 1 62 L163 144. -37. -.47 73. 1. 25 38. -9. -.56 18. 1.02 30N 0 L 1 63 L182M 350. 169. 2.15 96. 1.64 72. 25. 1.48 30. 1.67 30M e L182M

LI 85 256. 75. .95 70. 1. 19 59. 12. .72 26. 1.42 30N 0 LI 85 L190C 283. 102. 1.29 85. 1. 45 45. -3. -. 15 15. .82 30N 6 L190C

L212 271. 90. 1.14 88. 1.50 56. 9. .53 22. 1.20 30M O L2 12 L223F 291. 111. 1.40 64. 1.09 62. 15. .88 16. .91 30 M 0 L223F

L23 0 171. -10. -.12 52. . 88 41. -6. -.34 18. 1.01 3 ON 0 L230 L232 306. 125. 1.58 96. 1.65 119. 72. 4. 31 34. 1.90 30N X L232

L236 118. -63. -.80 41. .70 34. -13. -.76 9. .49 30N 0 L236 L238A 167. -14. -.18 61. 1. 05 37. -10. -.58 21. 1. 15 3 ON 0 L238A

L23 8B 180. -0. -.01 44. .75 37. -10. -. 58 20. 1.12 30D 0 L238B

L24 3 330. 149. 1 .90 101. 1.72 59. 12. .69 23. 1.28 3 0D 0 L243

L25 4 87. -94. -1.19 73. 1.24 24. -23. -1.38 9. .51 30M o L254

L262 165. -15. -.19 36. .62 47. 0. .02 21. 1. 15 30N o L262

L27 5 179. -2. -.02 33. .56 51. 4. .22 21. 1.18 30N o L275

L27 8 96. -85. -1.08 46. .78 15. -32. -1.92 5. .27 30C 0 L278

L27 9 226. 45. .58 65. 1.10 45. -2. -. 11 17. .96 30N 0 L279

L2 85A 146. -35. -.45 53. .91 S3. 6. .37 20. 1.12 30N 0 L285A L285B 179. -1. -.02 47. . 80 55. 7. .45 21. 1.18 30N 0 L285B L299 68. -112. -1.43 29. .49 25. -22. -1.34 11. .64 3 ON 0 L299

L32 0 89. -91 . -1.16 38. .65 24. -24. -1.40 9. .48 30N 0 L320

L32 1 356. 175. 2.22 1 09. 1. 86 94. 47. 2.78 22. 1.23 30M • L321 L326N 57. -123. -1.57 18. .31 30. -17. -1.00 14. . 80 30N 0 L326N L339 65. -1 16. -1.47 15. .26 18. -29. -1.71 5. .28 3 ON 0 L339

L376 117. -63. -.81 44. .75 34. -13. -.78 13. .72 30N o L3 76 L38 8 194. 13. .17 53. „ '.0 60. 12. .74 23. 1.25 30N 0 L388

L39 0 149. -32. -.41 67. 1.14 48. 1. . 08 19. 1.04 3 ON 0 L390

L393 114. -67. -.85 32. . 54 28. -19. -1. 13 14. . 80 30M 0 L393

L396M 234. S3. .67 87. 1. 49 63. 16. .97 19. 1.08 30N 0 L3 96M

L565 255. 75. .95 119. 2.04 61. 14. .81 19. 1.04 30N 0 L565

L56 7 125. -56. -.71 52. .90 64. 17. 1.03 26. 1.45 30N * L567

L589 192. 11. . 14 50. .85 43. -4. -. 26 18. .98 30N 0 L589 L599 211. 30. .39 1 16. 1.98 64. 17. 1.03 24. 1.33 3 0C 0 L599

L62 2 520. 339. 4.3 1 309. 5.28 177. 130. 7.73 133. 7.39 30M X L522

L67 0 178. -2. -.03 32. .55 59. 12. .71 21. 1. 19 30N o L670

GR* MEAN • 181. DOUBLE FOLDS GRAND MEAN - 47. D6UBLE F0LDS TEST DETERMINATIONS - 15 SD MEANS - 79. DOUBLE FOLDS SD OF MEANS - 17. DOUBLE FOLDS 44 LABS IN GRAND MEANS AVERAGE SDR - 59. DOUBLE FOLDS AVERAGE SDR - 18. DOUBLE FOLDS L182S 179. -2. -.02 45. .77 43. -4. -.24 17. .92 30S L182S

L190D 133. -47. -.60 42. .71 41. -6. -.35 18. .98 30S . L190D L280 77. -103. -1.31 29. .50 24. -23. -1.38 10. .55 30 K L280 L326S 32. -149. -1.89 12. .21 27. -20. - 1.21 11. .60 30S L326S L396S 181. 0 . .00 43. .74 61. 14. . 81 24. 1.33 3 0T L396S

TOTAL NUMBER OF LAB 6 EAT OR IES REPORTING - 5 1 Best values: B69 200 double folds

B88 50 double folds The ISO (International Standards Organization)

is proposing that MIT folding endurance be reported as the logarithm (to the base 10) of

the double fold instead of the double fold

as in the past* Please see page 43 of this report for a demonstration of this proposal*

40
REPORT NO. 58S TAPP X COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T30-1 TABLE 2 FOLDING ENDURANCE (MIT). DOUBLE FOLDS

TAPPI STANDARD TS1 1 SU-69 LAB CODE F MEANS

B69 B8 0 COORDINATESMAJOR MINOR L326S 32. 27. -150. 5. L326N 0 S7. 30. •124. 4.

LI 5 8 0 64. 19. -120. -a. L339 0 65. 18. -119. -9. L299 0 68. 25, -115. -3.

L100M 0 75. 42. -106, 13. L260 * 77. 24. - 106. -5, L100N 0 85, 42. -96. 11. L2S4 0 87, 24. -96. -7, L32 0 0 89. 24, -94, -8.

1270 0 96. 18. -89, -17. L393 0 1 14. 28, -69. -7, 1376 0 117. 34, -65, -2. L236 0 118. 34. -64, -2. 1867 * 125. 64. -82, 26. L190D 133. 41. -48, 2.

Li 03 0 144. 3 8. -38, -3,

L28SA 0 146. 03. *34, 12, L390 0 149, 48, -31. 7, L162 0 153. 39, -29, -4.

L108 0 !§7» 40, -24, -3, L262 0 165. 47. *1 i. 3. LI38A 0 167. 37, -13, -7, L230 0 171. 41, -II. -4, L670 0 178, 09, -o. 12.

L273 0 179, il. -1, 4, L182S * 179. 43, -2, *4,

L2§§8 0 179. 80. -0, 8, L23§8 0 180, 37, -2, -10, L396S * 101. 61, 2. 13, L389 0 192, 43, 10, -6, L388 0 194, 60, 13, 10,

LI 10 0 201. 67. go. -3,

L399 0 ill. 64. 33, 12, LI i i 0 213, 68, 38, 13, 1279 0 226, 4§, 44, *10, L130 0 232. 42, 49, s 16, L396M 0 234, 63. 83, 7, List 0 237, 40, 36, »§, Llgg 0 246* 74, 69, 13,

L124 0 241, 68, 69, 9, L§6§ 0 gss. 61, 76, 1, LI §3 0 2§6, §9. 76, -1 . LgJg 0 271, §6, 99, -6,

L198C 0 2§3, *§, 199, —20,

LgglP 0 g®l

,

6g, 111, -4 C Lg§2 s 306, 119. 133, 50e LgA3 0 339, 5 9 0 149. -14,

Li §2M 0 330, 72, 171, -4,

L§gl * 336 e 94. 180, 16, L#ii * §20, 177, 336, 70,

6MI4N§i til* 95*

47, ELLIPSE 5 20§, 26,

AVG

R. SDR VAR PROPERTY TEST INSTRUMENT-—CONDITIONS

.41 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

.56 3 ON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

.69 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

.27 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

.56 3 ON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

.50 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

.52 30K FOLDING ENDURANCE, KOHLER- MOL IN .62 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

.88 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

.57 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

.53 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

,67 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

,73 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

• 60 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

1.17 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

« 85 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

1. 14 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

1.02 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

1.09 30 N FOLDING endurance. MIT, NO CENTRIFUGAL FAN

,93 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

,92 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN .88 3PN FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

1.10 3QN FOLDING ENDURANCE, MIT, NO CENTRIFUGAL PAN

,95 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

,87 30N folding ENDURANCE, MIT, NO CENTRIFUGAL FAN

,87 30 N folding ENDURANCE, MIT, NO CENTRIFUGAL FAN

.88 308 folding ENDURANCE, SCHOPPER, LEIPZIG

.99 30 N folding endurance, MIT, NO CENT PIFUOAL FAN

,94 300 folding endurance, MIT, MODIFIED DRIVE TO REDUCE HEATING

1,04 30T folding endurance. SCHOFPIR, TMI

.91 30 N folding endurance, MIT, NO centrifugal FAN

1,07 30 N folding endurance. MIT, NO CENTRIFUGAL FAN

,96 300 folding endurance, MIT, MODIFIED DRIVE TO REDUCE HEATING

1,63 306 folding endurance, MIT, CIRCULATING FAN IN CEILING

,96 30W folding endurance. MIT, WITS CENTRIFUGAL FAN

1.03 30 N FOLDING insurance. MIT, NO CENTRIFUGAL FAN

1,15 30M FOLDING endurance, MIT, WITH CENTRIFUGAL FAN

1,29 30 N folding endurance, MIT, NO CENTRIFUGAL FAN

1.07 30N folding endurance. MIT, NO CENTRIFUGAL FAN

1,73 30M folding endurance. MIT, WITH CENTRIFUGAL FAN

1,83 30 N folding endurance. MIT, NO CENTRIFUGAL FAN

1,34 30N FOLDING endurance, MIT. NO CENTRIFUGAL FAN

1.31 30N folding endurance, MIT, NO CENTRIFUGAL FAN

1,33 30M folding endurance. MIT, WITH CENTRIFUGAL FAN

1.13 30.N folding endurance, MIT, NO CENTRIFUGAL FAN

1,00 30 M folding endurance. MIT, WITH CENTRIFUGAL PAN

1.78 30 N folding endurance. MIT, NO CENTRIFUGAL FAN

1.50 300 folding ENDURANCE, MIT, MODIFIED DRIVE TO SEDUCE HEATING

1.66 30M folding endurance. MIT, WITS CENTRIFUGAL FAN

1,34 3pM folding ENDURANCE, MIT, WITH CENTRIFUGAL FAN

6,33 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

1,06

with GAMMA 9 9 degrees
DOUBLE

F

0

L

D

:

OO

150

200

250

300

350

400

450

500

FOLDING ENDURRNCE ( MIT

SAMPLE B69 = 181. DOUBLE FOLDS SAMPLE B88 = 47. DOUBLE FOLDS

DOUBLE FOLDS

42
REP0RT NO# 58

S

TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS T30-2 TABLE 1 FOLDING ENDURANCE (MIT) DATA IS LOG( BASE 1 0 ) OF TflE DOUBLE FOLD MEASUREMENT

FEBRUARY 1979

SAMPLE 0FFSET PRINTING SAMPLE HEAT SET 6FFSET B60K TEST D. ' 15 LAB B69 94 GRAMS PER SQUARE METER B88 88 GRAMS PER SQUARE METER

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

LI 00M i # 86 -.34 -1.46 .10 .61 1.60 -.02 -. 12 .14 .72 30M 6 L100M

LI 0 ON 1*92 -.26 -1.22 . 1 0 .60 1. 59 -.03 -.17 .16 .84 3 ON 0 L100N

LI 05 2# 18 -.01 -.06 .12 .70 1. 56 -.07 -.36 .22 1.17 30M 0 L 1 05

LI 1 8 2# 29 .09 .41 .1 1 .64 1.64 .01 .07 .17 .92 30D 0 LI 18

LI 2 1 2.32 .12 .53 o 10 .59 1 o 80 .17 . 83 .13 .71 30M e L 1 2

1

LI 22 2.32 . 13 .56 .28 1.66 1. 64 .22 1. 07 . 16 .84 30M e LI 22

LI 24 2.35 . 15 .65 .23 1. 36 1.77 .14 .71 .25 1.35 3 ON 0 LI 24

LI 50 2.35 .15 .65 .13 .79 1.59 -.04 -.20 .16 .93 30M 0 LI 50

LI 58 1*72 -.48 -2.09 .29 1.74 1.20 -.43 -2. 12 .25 1.31 3 ON e L 1 58

LI 5 9 2.36 . 15 .71 .12 .73 1.66 . 03 . 15 . 16 . 83 30N 0 Li 59

LI 6 2 2. 16 -.04 -.15 . 15 . 93 1.53 -.10 -.49 .25 1.35 30M 0 L 162

LI 63 2.11 -.09 - © 38 .21 1. 26 1.54 -.09 -.44 .18 .94 30N 0 Li 63 L182M 2.53 .33 1.44 .13 .78 1. 82 .20 .97 .17 .90 30M 0 L182M

LI 85 2. 39 . 19 • 65 .13 .79 1.73 . 1 1 .52 .19 1.02 30N 0 LI 85 L190C 2.43 .23 1 .02 .14 . 85 1.62 -.01 -.03 .17 .91 30N 0 L190C

L212 2.41 .2 1 .92 .16 .94 1.72 .09 .44 .17 .92 30M 0 L2 12 L223F 2.45 .26 1.12 .10 .62 1.78 .15 .73 .12 .64 30M a L223F

L23 0 2.22 .02 .08 . 13 .78 1.58 -.05 -.25 .19 1.02 30N 0 L230 L232 2.46 .26 1.15 .16 .97 2.06 .43 2. 13 .13 .71 30N 0 L232

L236 2.05 -.15 -.64 .14 . 86 1. 52 -. 1 1 -.53 .12 .64 30N a L236

L23 8A 2.18 -.02 -.07 .23 1.37 1.50 -.13 -.64 .27 1.43 30N 0 L238A

L23 6B 2.24 .05 • 20 .12 .71 1.51 -. 1 1 -.57 .24 1. 26 30D 0 L238B

L243 2.50 .30 1.32 .13 .81 1.73 .11 .52 .19 1.00 30D 0 L243 L254 1.81 -.39 -1.68 .35 2. 10 1.35 -.28 -1.39 .17 .92 30M 0 L254 L262 2.21 .01 .05 .10 .62 1.63 .01 .03 .21 1.10 30N 0 L262

L27 5 2.25 .05 .22 .08 .48 1.67 .04 .20 . 19 1.01 30N 0 L275

L27 8 1 .93 -.27 -1.16 .23 1.36 1.15 -.48 -2.37 .15 .77 30C * L278

L279 2.34 . 14 .60 .14 .84 1.63 -.00 -.00 . 16 . 85 30N 0 L279 L285A 2. 13 -.07 -.29 .19 1. 1 1 1.70 .07 .35 .16 . 85 30N 0 L285A

L285B 2.23 .03 . 15 .17 1.03 1.69 .06 .32 .23 1.20 3 ON 0 L285B L299 1.78 -.42 -1.82 .25 1. 52 1.35 -.28 - 1. 40 .21 1.12 30N 0 L299 L320 1.89 -.30 -1.32 .26 1.53 1.34 -.28 - 1.40 . 16 .85 30N 0 L320

L32 1 2.53 .34 1.46 . 13 .79 1.96 .33 1.65 .11 .56 30M 0 L32

1

L326N 1.74 -.46 -2.00 . 14 . 84 1.41 -.21 -1.06 .27 1.46 30N 0 L326N L339 1.80 -.40 - 1.73 .11 .67 1.24 -.38 -1.90 .14 .73 30N 0 L339

L376 2.03 -. 16 -.72 .20 1.22 1.50 -.13 -.64 .18 .95 30N 0 L376

L388 2. 27 .08 .33 .12 .73 1. 74 .11 .55 .19 1.03 30N 0 L388

L390 2. 13 -.07 -.29 .20 1.20 1.65 .03 .13 .17 .91 30N 0 L390

L393 2.04 -. 16 -.69 .13 .80 1. 40 -.23 -1. 12 .21 1.12 30M 0 L393 L396M 2.34 .14 • 62 .17 1. 04 1.78 .15 .75 .15 .78 30N 0 L396M

L565 2. 35 .15 . 66 .25 1.51 1.75 .12 .61 .19 1.0 3 30N 0 L565 L567 2.04 -.16 -.68 .27 1.63 1.80 .17 . 85 .29 1.56 30N 0 L567

L589 2. 27 .07 • 31 .11 .68 1.60 -.03 -. 15 .18 .93 30N 0 L5 89 L59 9 2.26 .07 • 29 .24 1.43 1.78 .16 .78 .15 .77 30C 0 L599

L622 2.64 .44 1.92 .28 1.68 2. 12 .49 2.42 .38 2.02 30M 0 L6 22

L67 0 2. 24 .05 • 21 .08 .47 1.74 .12 .58 .16 . 85 30N 0 L670

GR# MEAN 2.20 L0G( 10

)

FOLD GRAND MEAN - 1.63 L0G< 10 ) FOLD TEST DETERMINATIONS - 15 SD MEANS - .23 L0G< 10 ) FOLD SD OF MEANS -

• 20 L6G< 10 ) FOLD 46 LABS IN GRAND MEANS AVERAGE SDR - .17 L0G( 1 0 ) FOLD AVERAGE SDR - .19 L0G( 10

)

F6LD L182S 2. 24 .04 . 18 . 13 • 78 1.61 -.02 -. 10 . 16 .83 30S L182S L190D 2. 11 -.09 -.39 .13 . 80 1. 58 -.05 -.24 . 18 .97 30S L190D

L28 0 1.86 -.34 - 1.48 .18 1. 06 1.34 -.28 - 1.40 .17 .93 3 OK L280 L326S 1.46 -.72 -3. 13 .17 • 99 1.39 -.23 -1.16 .17 .93 30S L326S L396S 2.24 .05 .21 .11 .66 1.74 .12 .58 .20 1.08 30T L396S

TOTAL NUMBER OF LABORATORIES REPORTING - 51 The ISO (International Standards Organization) is pro- posing that MIT folding endurance be reported as the logarithm (to the base 10) of the double fold instead

of the double fold as in the past#

Analysis T30-1 in this report is the same as in the past with no changes# The analysis, T30-2, shows the data as the ISO proposes# This analysis uses the raw data reported for T30-1# The raw data are converted

to the logarithm (base 10) as shown in the example to the right, and then the mean of the converted data is calculated and reported as ISO folding endurance*. 43

Raw data (Folding number

in double folds)

207

166

151 332

260

137

199 230

210

log ( base 10) of raw data

2 e 32

2# 22

2# 16

2# 52

2 # 4

1

2# 14

2# 30

2. 36

2*31 mean of logs

'Folding cndurar.ee" mean of raw data
REP0RT N6. 58S TAPP I COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1 5 79 ANALYSIS T30-2 TABLE 2 FOLDING ENDURANCE (MIT) DATA IS LOG(BASE 10) OF THE DOUBLE FOLD MEASUREMENT

LAB

CODE F MEANS

B69 B88 COORDINATES

MAJOR MINOR AVG

R. SDR VAR PROPERTY-- -TEST INSTRUMENT—-CONDITIONS

L326S 1 © 48 i. 39 -.70 .29 .96 30S FOLDING ENDURANCE, SCHOPPER. LEIPZIG

L158 0 1.72 i. 20 -.64 -.01 1.52 3 ON FOLDING ENDURANCE, MIT, BG CENTRIFUGAL FAN L32oN e 1.74 i. 41 -.49 .14 1. 15 30N FOLDING ENDURANCE, MIT* NO CENTRIFUGAL FAN

L299 0 1.76 i. 35 SO .06 1.32 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L339 0 1.80 i. 24 -.55 -.03 . 70 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L254 0 1.81 i. 35 -.46 .04 1.51 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L28 0 1.86 34 -.44 .01 1.00 30K FOLDING ENDURANCE, KOHLER-MOLIN

LI 0 OM 0 1 .86 *

60 -.27 .20 .66 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L320 6 1.89 i. 34 -.41 -.02 1.19 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L 1 0 ON 0 1.92 i. 59 -.24 . 16 .72 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L27 8 «• 1.93 i. 15 -.51 -.19 1.06 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

L376 0 2.03 i. 50 -.21 .01 1.08 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L393 0 2.04 i. 40 -.27 -.07 .96 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L56 7 0 2.04 u 80 -.01 .23 1.60 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L236 0 2.05 i. 52 -. 16 .01 .75 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 9 OD 2. 1 1 i. 58 -.10 .02 .69 30S FOLDING ENDURANCE, SCHePPER, LEIPZIG

L 1 63 0 2.11 i. 54 -. 12 -.01 1. 10 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L2 85A 0 2.13 i. 70 -.00 .10 .98 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L390 0 2.13 i. 65 -.03 . 06 1.06 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L 1 62 0 2. 16 i. 53 -.09 -.05 1. 14 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN L238A 0 2.18 i. 50 -. 10 -.09 1.40 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 05 0 2.18 i. 56 -.06 -.05 .94 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L26 2 0 2.21 1. 63 .01 -.00 . 86 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L23 0 0 2.22 1. 58 -.02 -.05 .90 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L2 85B 0 2.23 1

69 . 07 .03 1. 12 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN L182S 2.24 1. 61 .02 -.04 .80 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

L23 8B 0 2.24 151 -.04 -.12 .98 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HEATING L670 0 2.24 1. 74 .11 .06 • 66 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L396S 2. 24 1. 74 . 1.06 .87 30T FOLDING ENDURANCE, SCHOPPER, TMI

L27 5 0 2.25 1. 67 . 06 -.00 .75 30N FOLDING ENDURANCE, MIT, N0 CENTRIFUGAL FAN L599 0 2.26 1. 78 . 15 .08 1.10 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

L589 0 2.27 1 . 60 .04 -.07 .80 30N FOLDING ENDURANCE, MIT, N0 CENTRIFUGAL FAN

L38 8 0 2.27 1. 74 . 13 .04 .68 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI i 8 0 2.29 1. 64 . 08 -.05 .78 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HEATING

LI 2 1 0 2.32 1

80 .20 .05 .65 30 N FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L 122 0 2.32 1. 84 .24 .08 1.25 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L279 0 2.34 t. 63 . 10 -.09 .84 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L3 9 6M 0 2.34 1. 78 .21 .02 .91 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 2 4 0 2.35 1. 77 .21 .01 1.36 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 50 0 2.35 1. 59 .09 -.13 .66 30N FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L56 5 0 2.35 1. 75 .20 -.01 1.27 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

LI 59 0 2.36 1. 66 . 14 -.06 .78 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 85 0 2.39 1

73 .22 -.05 .90 30 N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L2I 2 0 2.41 1. 72 .22 -.07 .93 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

LI 9 OC 0 2.43 1. 62 . 17 -. 16 .68 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L223F 0 2.45 I. 78 .29 -.05 .63 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L23 2 0 2.46 2. 06 .48 .16 .84 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L243 0 2.50 1 C 73 .30 -.12 .90 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HEATING

L18 2M 0 2.53 1. 82 . 38 -.07 .84 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L32 1 0 2.53 U 96 .47 .03 .67 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L62 2 0 2.64 2. 12 .65 .08 1.85 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

GMEANS: 2.20 1.63 95% ELLIPSE: .75 .23

1.00 WITH GAMMA - 40 DEGREES

44
FOLDING ENDURRNCE (MIT)

SAMPLE B69 = 2.20 L0G(1O) FOLD SAMPLE B88 = 1.63 L0G( 10) POLO

L0G( 10) FOLD

45
REPORT N0. 58S TAPPI COLLABORATIVE REFERENCE PR0GRAM FEBRUARY 1979 ANALYSIS T35-1 TABLE 1 GURLEY STIFFNESS

RESULTS EXPRESSED IN STANDARD GURLEY UNITS; MILLIGRAMS FOR A 1X3 INCH SPECIMEN (ACTUAL LENGTH 3.5 INCHES) SAMPLE PRINTING sample PRINTING TEST D. - 10 LAB K03 103 GRAMS PEP SQUARE METER K41 60 GRAMS PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R.SDG VAR F LAB

L10C 250.8 10.3 .75 9.5 .72 1 43# 0 32.0 2. S3 5.5 .76 35G 0 L100

LI i 3 240. 7 .2 . 02 8.3 .63 94.1 -16.9 - 1.34 7.9 1.08 35G e LI 18

LI 2

231.0 -9. S -.69 17.3 1.31 134.0 23.0 1.82 8.4 1.16 35G o LI 21

LI 22 219.2 -21.3 -1.54 27.4 2. 08 97.1 -13.9 -1.10 6.2 .86 35G o L122

LI 3 2 246.0 5.5 .40 11.7 .89 133.0 22.0 1.74 17.7 2.44 35G 0 LI 32

LI 39 227.5 -13. 0 -.94 1 1.9 .90 107.7 -3.3 -.26 5. 8 .80 35G 0 LI 39 L148 232.9 -7.6 -.55 13.5 1.02 1 10.8 -.2 -.02 6.3 .87 35G 0 LI 46

L 153 233.4 -7. 1 -.51 10.3 .79 104.0 -7.0 -.56 3. 8 .53 35G 0 LI 53 L159 269.5 29. 1 2.11 12.7 .96 1 13.6 2.5 .20 10.3 1.42 35G 0 LI 59 L162 237.6 — 2.

-.21 11.3 . 86 94.6 -16.5 - 1.30 5. 1 .71 35G 0 LI 62

LI 63 243.6 3. 1 .23 23.7 1.80 100.5 -10.5 -. 83 14.4 1.99 35G 0 L 1 63

LI 83 250.7 10.2 .74 1 0.6 .81 1 19.4 8.4 .66 8.2 1. 14 3 5G 0 LI 83

Li 90C 223.3 -17.2 -1.24 21.3 1. 62 95.0 -16.0 -1.27 2. 1 .29 35G 0 LI 90C

L21 2 248. 1 7.6 .55 17.0 1.29 1 13.5 2.5 .19 8.6 1.21 35G 0 L212

L223 231.1 -9. 4 -.68 9.7 .73 109.2 -1.8 -.15 7.1 .97 35G 0 L223

L232 261.20.6 1.50 10.0 .76 123.3 12.3 .97 6.3 .87 35G 0 L232

L236 23 1.8 -8.7 -.63 11.1 .84 93.5 -17.6 -1.39 6.5 .90 35G 0 L236

L24 1 247. 1 6.6 .48 13.9 1.05 123.9 12.9 1.02 3. 8 .53 35G 0 L241 L249 245.8 5.3 .39 1 8. 0 1.37 1 13.7 2.7 .21 4.0 .56 35G 0 L249

L25 4 213. 5 -27. 0 -1.96 9.9 .76 109.0 -2.0 -. 16 6.0 .83 35G 0 L254

L26 0 245. 1 4.6 .34 4.0 .30 96.8 -14.2 -1.13 4.6 .63 35G 0 L260

L26 8 230.2 -10.3 -.74 12. 1 . 92 110.4 -.6 -. 05 5.9 .81 35G 0 L268

L285 173.8 -66. 7 -4.84 9.4 .72 74.6 -36.4 -2.88 9.7 1.34 35G * L285

L291 241.1.3 .10 11. 1 .84 1 13.6 2.6 .20 4.6 .63 35G 0 L291

L30 8 233. 7 -6.8 -.49 15.6 1.18 95.2 -15.8 - 1.25 12.8 1.77 35G 0 L308

L321 272. 3 31.9 2.31 20. 6 1.57 1 17.5 6.4 .51 9.2 1.27 35G 0 L321 L356 234. 1 -6.4 -.46 16.2 1.23 87.0 -24.0 -1.90 5. 1 .71 35G 0 L356

L376 236. 2 -4.3 -.31 12.3 .94 1 13.0 2.0 . 16 3.7 .52 35G 0 L376

L382 269.8 29.4 2. 13 8.4 .64 1 19.4 8.4 .66 3.9 .54 35G 0 L382

L39 0 239. 1 -1.3 -.10 8.9 .67 1 12.0 1.0 .08 11.3 1.55 35G e L390 L396 230.4 -10. 1 -.73 15. 4 1.17 107.2 -3. 8 -.30 7.5 1.04 35G a L396

L56 7 283. 0 42. 5 3.09 11.6 .88 152.0 41.0 3.24 7.9 1.09 35G * L567

L60 0 251.6 11.1 .61 7.6 .58 1 17.8 6. 8 .54 9.2 1,27 35G 6 L600

L648 226. 0 -14.

-1.05 16.5 1.25 1 18.5 7.5 .59 11.3 1.56 35G 0 L648

L65 0 234. 8 -5.7 -.41 11.6 . 88 1 16. 8 5. 8 .46 4.6 .64 35G 0 L650 L693 245. 8 5.3 .38 8.2 .62 1 17.0 6. 0 .47 8.2 1. 14 35G 0 L6 93

GR. MEAN • 240.5 GURLEY UNITS GRAND MEAN - 111.0 GURLEY UNITS TEST DETERMINATIONS - 10 SD MEANS - 13.

GURLEY UNITS SD OF MEANS - 12.6 GURLEY UNITS 34 LABS IN GRAND MEANS AVERAGE SDR - 13.2 GURLEY UNITS AVERAGE SDR • 7.2 GURLEY UNITS L213 230.0 -10.5 -.76 11.0 • 84 1 14.8 3.8 .30 3. 8 .52 35H • L2 13 TOTAL NUMBER OF LABORATORIES REPORTING - 37

Best values: K03 240 + 27 Gurley units

K.41 110 + 17 Gurley units

The following laboratories were omitted from the grand means because of extreme test results: 567.

Data from the following laboratories appear to be off by a multiplicative factor: 285.

46
REPORT NO. 58 S TAPPI C6LLAB0RATI VE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T35-1 TABLE 2 GURLEY STIFFNESS RESULTS EXPRESSED IN STANDARD GURLEY UNITS: MILLIGRAMS FOR A 1X3 INCH SPECIMEN (ACTUAL LBNGTH 3.5 INCHES)

LAB MEANS cee HDINA1ES AVG CODE F K03 E41 MAJOR MINOR S, SDR VAR PROPERTY TEST INSTRUMENT—-CONDITIONS

L2 85 » 173.8 74.6 -74.8 13. 5 1,03 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE)

L254 0 213.5 1 09.0 -22.3 15. 4 .79 35G STIFFNESS, GURLEY c UNITS: MG/ 1X3 -ACTUALLY 3® 5- TEST PIECE)

L 1 22 0 219.2 97. 1 -25.3 2.5 1.47 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

L190C a 223.3 95.0 -23.4 -1.7 .95 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

L64 8 a 226. 0 118.5 -6.6 14. 9 1.41 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

LI 39 a 227.5 107.7 -12.2 5.5 .85 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L213 230. 0 114.8 -5.8 9.5 .6 3 35H STIFFNESS, GURLEY ( UNITS: MG/1X3 TEST PIECE), 20 C. 65* RH L268 a 230.2 110.4 -8.4 6. 0 .87 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L396 a 230.4 107. 2 -1 0.2 3.3 1.10 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) LI 2 1 a 231.0 134. 0 7.1 23.8 1.24 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L223 a 231. 1 109.2 -8.4 4.5 . 85 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3. 5- TEST PIECE)

L236 a 231.8 93.5 -17.8 -8. 2 .87 35G STIFFNESS. GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

LI 4 8 a 232.9 1 10.8 -6.0 4.6 .95 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

LI 53 a 233.4 104.0 -9.9 -1.0 .66 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L30 8 a 233. 7 95.2 -15.2 -8.0 1.43 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

L356 a 234. 1 87.0 -20.0 -14.7 .97 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3. 5- TEST PIECE ) L65 0 0 234.8 1 16.6 -.8 8.0 .76 35G STIFFNESS, GURLEY l UNITS: MG/IX3 -ACTUALLY 3. 5- TEST PIECE ) L376 a 236.2 113.0 -2.1 4.2 .73 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) LI 62 a 237.6 94.6 -12.6 -1 l. 0 .79 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

L39 0 a 239. 1 1 12.0 -.4 1.6 1.11 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

LI 1 8 a 24 C. 7 94.1 -10.5 -13. 3 . 36 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

L291 a 241.8 1 13.6 2.7 1.2 .74 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

LI 63 a 243.6 100.5 -4.2 -10. 2 1.90 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) L26 0 a 24 5. 1 96. 8 -5.3 -14. 0 .47 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) L693 a 245. 8 117.0 7.9 1.3 . 88 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) L249 a 245. 8 113.7 5.8 -1.3 .96 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) LI 32 a 246. 0 133.0 18. 1 13.6 1.67 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) L241 a 247. 1 123.9 13.2 5.8 .79 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L212 a 248. 1 113.5 7.5 -2.9 1. 25 35G STIFFNESS, GURLEY c UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) LI 83 a 25 C 0 7 1 19.4 13.2 . 1 .97 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE )

LI 0 0 a 250.8 143.0 28.1 1 8. 4 .74 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE)

L600 a 251.6 1 17. 8 12.9 -1.7 .93 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L232 a 261. 1 123.3 23.8 -3.4 .81 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) LI 5 9 a 269.5 1 13. 6 24.2 -16.3 1.19 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) L382 a 269.8 119.4 28. 1 -11. 9 .59 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) L321 a 272.3 1 17.5 28. 9 -15.0 1.42 35G STIFFNESS, GURLEY < UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L56 7 283.0 152.0 58.8 S. 1 .98 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) GMEANS : 240. 5 111.0 1.00 95% ELLIPSE: 40.9 26.5 flITK GAMMA - 38 DEGREES

47
GURLEY

UNITS

100

1

10

1

20

130

1

40

150

STIFFNESS, GURLEY

SAMPLE K03 = 240. GURLEY UNITS SAMPLE K 4 1 = 111. GURLEY UNITS

190 200 210 220 230 240 250 260 270 280 290

GURLEY UNITS

48
REPORT N0« 58S TAPPI COLLABORATI VE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T36-1 TABLE I TABER STIFFNESS

TAPPI STANDARD T489 OS-76, RESULTS EXPRESSED IN GRAM CENTIMETERS

SAMPLE CONVERTER KRAFT SAMPLE INDEX TEST D. - 10 LAB A65 155 GSAM3 PEE SQUARE METER A77 205 GRAMS PER SQUARE METER

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

L107A 286.7 260. 1 315.94 25.9 19.76 274.8 246.9 251.55 26.0 18.27 36T tt L107A

LI 22 26.0 -.6 -.70 .9 .72 27.4 -.5 -.54 1.4 .99 36T 0 LI 22

LI 23 25.2 -1.4 - 1.67 2.3 1.72 26.9 -1.0 - 1. 05 1.7 1.22 36T 0 LI 23

LI 26 26.7 . 1 .15 .8 .58 27. 3 -.6 -.59 1.8 1.27 36T 0 LI 26

LI 50 27.8 1.2 1.49 1.2 .94 29.0 1. 1 1. 09 1.4 1.00 36T 0 L 1 50

LI 58 28.0 1.4 1 .73 1.6 1.21 29.0 1. 1 1.09 1.3 .91 36T 0 L 1 58

LI 63 27. 8 1.2 1.49 1.4 1.05 30.2 2.3 2.36 . 8 .56 36T 0 L 1 63 L173B 25.9 -.7 -.82 .2 . 16 28.6 .7 .70 .3 . 18 36T 0 L173B

LI 82 26. 8 .2 .30 1.4 1. 05 27.6 -.3 -.32 1.4 1.01 36T 0 LI 82

L2 07 26. 3 -.2 -.30 1.2 .95 26.9 -1.0 -1.03 1.5 1.05 36T 0 L207 L212 26. 2 -.4 -.48 1.5 1. 12 28.5 .5 .54 1.3 .94 36T 0 L2 12 L22 8 27.0 .5 .58 2. 1 1.57 30.0 2. 1 2. 11 1.5 1.06 36T 0 L226

L230 27.2 .6 .76 .9 o 70 27.7 -.2 -.24 1.5 1.05 36T 0 L230 L236 24.8 -1.7 -2. 10 1.3 1.03 26.2 -1.7 -1.74 1.7 1. 17 36T 0 L236

L24 2 28.0 1.4 1.72 1.8 1.40 28.9 1.0 .99 .9 .64 36T 0 L242 L243 25. 8 -.7 -.88 1.3 1. 02 27.4 -.5 -.54 2. 1 1.51 36T 0 L243

L26 0 27. 1 .5 .64 .8 .62 28.0 . 1 . 12 2.0 1. 39 36T 0 L260

L26 2 26.7 .2 .21 1.0 .79 28.3 .4 .43 .9 • 66 36T 0 L262

L26 8 26. 1 -.4 -.52 1.2 . 88 27.7 -.2 -.24 .7 .47 36T 0 L268

L28 I 26. 8 . 2 .25 1.6 1.26 28.8 .9 .89 1. 1 .80 36T 0 L28

1

L290 25. 9 -.7 -.82 1.3 1.00 26.7 -1.2 - 1. 25 1.5 1.04 36T 0 L290

L31 8 25.9 -.7 -.85 1.4 1. 10 26.8 -1.2 -1.18 1.4 . 96 36T 0 L3 18 L321 26.0 -.6 -.70 1.7 1.33 27.2 -.7 -.69 2.2 1.54 36T 0 L321 L324 27.8 1.3 1.52 1.0 • 74 28.6 .7 .71 1.5 1.03 36T 0 L3 24 L33 9 50.7 24. 2 29.36 .6 .48 5 1.1 23.2 23.66 1.5 1.05 36T U L339 L388 40.8 14.2 17.28 3. 0 2.33 41.3 13.4 13.62 1.6 1. 10 36T H L388

L442 26.3 -.3 -.33 1.0 .73 27.9 -.0 -.01 1.3 .91 36T 0 L442

L5 7 0 27. 1 .5 .64 1.2 .91 27.9 -.0 -.03 1.7 1.17 36T 0 L570

L5 8 0 26. 4 -.2 -.21 1. 1 .82 28. 1 .2 . 17 1.9 1.30 36T 0 L5 60 L651 26.2 -.4 -.46 1.9 1. 43 27.0 -.9 -.95 1.4 1.00 36T 0 L651 L692 26.0 -.5 -.64 1.5 1. 16 27. 1 -.8 -. 80 1.7 1.17 36T 0 L6 92

GR • MEAN - 26.6 TABER UNITS GRAND MEAN - 27.9 TABER UNITS TEST DETERMINATIONS • 10 SD MEANS ’ • 8 TABER UNITS SD OF MEANS » 1.0 TABER UNITS 28 LABS IN GRAND MEANS

AVERAGE SDR - 1.3 TABER UNITS AVERAGE SDR - 1.4 TABER UNITS L250 25.4 -1.2 -1.43 1.4 1.09 25.6 -2.3 -2# 38 1.0 • 74 36U L250 TOTAL NUMBER OF LABORATORIES REPORTING - 32

Best values: A65 26.5 + 1.4 Taber units

A77 27.9 + 1.6 Taber units

Data from the following laboratories appear to be

off by a multiplicative factor: 107A, 339, 388.

49
REPORT NO. S8S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T36-1 TABLE 2 TABER STIFFNESS

TAPPI STANDARD 1489 OS-76, RESULTS EXPRESSED IN GRAM CENTIMETERS

LAB MEANS CC0RDINATES AVG

C0DE F A65 A7 7 MAJOR MINOR R. SDR VAR PB0PERTY---TES'

L23 6 0 24.8 26.2 -2.4 .3 1. 10 36T STIFFNESS, TAEER

LI 23 0 25. 2 26.9 -1.7 .4 1 • 47 36T STIFFNESS, TABER

L2 5 0 25.4 25.6 -2.6 -.5 • 91 36 U STIFFNESS, TABER, L243 0 25. 8 27.4 -.9 .2 1.26 36 T STIFFNESS, TABER

L31 8 0 25.9 26.8 -1.3 -. 2 1.03 36T STIFFNESS, TABER

L29 0 0 25. 9 26.7 -1.4 -.2 1.02 36 T STIFFNESS, TABER

L173B 0 25.9 28.6 . 1 1.0 • 17 36T STIFFNESS, TABER

Li 22 0 26. 0 27.4 -.8 . 1 . 85 36T STIFFNESS, TABER

L32i 0 26. 0 27.2 -.S .0 1*44 36T STIFFNESS, TABER

L692 0 26. 0 27.1 -.9 -. 1 1. 17 36T STIFFNESS, TABER

L26 8 0 26. 1 27.7 -.4 .2 .68 36T STIFFNESS, TABER

L212 0 26. 2 26.5 .2 .6 1.03 36T STIFFNESS, TABER

L651 0 26.2 27.0 -1.0 -.3 1.21 36T STIFFNESS, TABER

L442 0 26.3 27.9 -.2 .2 • 82 36T STIFFNESS, TABER

L207 0 26.3 26.9 -.9 -.4 1.00 36T STIFFNESS, TABER

L580 0 26.4 26.1 .0 .2 1.06 36 T STIFFNESS, TABER

Li 26 0 26.7 27.3 -.4 -.5 • 93 36T STIFFNESS, TABER

L262 0 26.7 28.3 .4 . 1 .73 36T STIFFNESS, TABER

L281 0 26.8 28.8 .8 . 4 1.03 36T STIFFNESS, TABER

Li 82 0 26. 8 27.6 -.1 -.4 1.03 36T STIFFNESS, TABER

L22 8 0 27.0 30.0 1.9 .9 1.32 367 STIFFNESS, TABER

L260 0 27. 1 28.0 .4 -.3 1.0 1 36T STIFFNESS, TABER

L57 0 0 27. I 27.9 .3 -. 4 1. 04 36T STIFFNESS, TABER

L230 0 27. 2 27.7 .2 -.6 .88 36T STIFFNESS, TABER

Li 63 0 27.8 30.2 2.6 .5 .80 36T STIFFNESS, TABER

Li 5 0 0 27.8 29.0 1.6 -.3 .97 36T STIFFNESS, TABER

L32 4 0 27.8 28.6 1.3 -.5 .88 36T STIFFNESS, TABER

L242 0 28. 0 28. 9 1.6 -.5 1.02 361 STIFFNESS, TABER

Li 58 0 28.0 29.0 1.7 -.5 1.06 367 STIFFNESS, TABER

L386 * 4 0. 8 41.3 19.3 -2.8 1.71 367 STIFFNESS, TABER

L339 0 50.7 51.1 33.2 -4.5 .77 367 STIFFNESS, TABER

L107A 0 286.7 274. 8 355.

0

-50.6 19.01 367 STIFFNESS, TABER GMEANS

26.6 27.9 1.00 95% ELLIPSE: 3.2 1.2 WITH GAMMA - 51 DEGREES

50
TRBER

UNITS

STIFFNESS, TRBER

SAMPLE A65 - 26.6 TABER UNITS SAMPLE A77 = 27-9 TABER UNITS

TRBER UNITS

51
REPORT NO. 58 S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T49-1 TABLE 1 SURFACE PICK STRENGTH, IGT

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 4 LAB J55 93 GRAMS PER SQUARE METER J93 89 GRAMS PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N .DEV SDR R. SDR VAR F LAB

LI 22 63.0 -83. 4 -.40 3.2 .87 55.3 -13.9 -.21 2.8 .39 49Q O LI 22

LI 49 72 1.2 574. e 2.79 .5 . 14 249.0 179.7 2.67 36.0 5.20 49L e LI 49

LI 5

8

298. 7 152.3 .74 9.5 2. 57 252.5 183.2 2.72 5.0 .68 49D * L 1 58

LI 821 22.9 -123.

5

-.60 1.0 . 27 32.8 -36.5 -.54 1.9 .26 49Q e LI 821

Li 9 OC 110.7 -35.7 -.17 4.6 1.24 34 * 2 -35.0 -.52 2. 1 .26 49T 0 L190C

L24 2 77.6 -68.9 -.33 7.0 1.91 22. 1 -47.2 -.70 3.7 .50 49P 0 L242

L24 3 82.5 -64.0 -.31 5. 1 1.38 67.7 •1,5 -.02 9.0 1.23 49T 8 L243 L280 113.6 -32.6 -. 16 3.6 .99 65.7 -3.6 -.05 6. 1 .84 49U * L260

L291 98.8 -47.6 -.23 1.7 .45 67.0 -2.3 -. 03 8.9 1.22 491 8 L291 L388 147.7 1*3 .01 . 1 .02 81.6 12.4 .18 4.4 .61 49Q 0 L368

L59 8 123.4 -23. 1 -.11 11.7 3.17 71.6 2.4 .03 1.7 .24 49P 0 L598 L643 16.6 -129.9 -.63 2.0 .55 11.3 -58.0 -. 86 .5 .07 491 0 L643

L65 1 400.0 253.5 1.23 .0 .00 276.2 207.0 3.07 2.5 .34 49F * L651

GS. MEAN - 146.5 KP CM/SEC GRAND MEAN • 69.3 KP CM/SEC TEST DETERMINATIONS - 4 SD MEANS • 206.1 KP CM/SEC SD OF MEANS - 67.3 KP CM/SEC 10 LABS IN GRAND MEANS

AVFRAGE SDR - 3.7 KP CM/SEC AVERAGE: SDR - 7.3 KP CM/SEC

TOTAL NUMBER OF LABORATORIES REPORTING - 13

Data from the following laboratories were omitted

from the grand means because no viscosity values

were reported: 158, 280.

Data from the following laboratories were omitted

from the grand means because the values were outside the range of the instrument: 651.

REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T49-1 TABLE 2 SURFACE PICK STRENGTH, IGT

LAB CODE F MEANS

J 55 J93 COORDINATES

MAJOR MINOR

AVG

R. SDR VAR PROPERTY---TEST INSTRUMENT--*-CONDITIONS L643 O 16.6 11.3 -141.4 -15. 8 • 31 491 SURFACE PICK STRENGTH, IGT. PIB FLUID

Li 8 21 0 22.9 32.8 -128.8 2.8 • 27 49 Q SURFACE PICK STRENGTH, IGT. IGT OIL

LI 22 0 63.0 55.3 -83. 7 12. 1 .63 49Q SURFACE PICK STRENGTH, IGT. IGT OIL L242 0 77.6 22. 1 -80.0 -24.0 1*21 49P SURFACE PICK STRENGTH, IGT, IGT OIL L243 6 82.5 67.7 -61.4 18.0 1.30 49T SURFACE PICK STRENGTH, IGT, I PC FLUID

L29 1 0 98. 8 67.0 -46. 1 12.3 .84 491 SURFACE PICK STRENGTH, IGT. PIB FLUID

L190C 0 1 10. 7 34.2 -44.7 -22. 5 • 76 49T SURFACE PICK STRENGTH, IGT. I PC FLUID

L28 0 « l 13. 8 65.7 -32.2 6.5 ,91 49 U SURFACE PICK STRENGTH, IGT. OIL

L59 8 0 123. 4 71.6 -21.3 9.3 1.70 49 P SURFACE PICK STRENGTH, IGT, IGT OIL

L388 0 147. 7 81.6 5.0 11.4 • 31 49Q SURFACE PICK STRENGTH, IGT, IGT OIL

LI 58 n 298.7 252.5 200.7 128.3 1.63 49D SURFACE PICK STRENGTH, IGT. INK L65 1 tt 400.0 276.2 304.4 120.2 • 17 49F SURFACE PICK STRENGTH, IGT, INK

LI 4

9

0 72 1.2 249.0 6 02.2 -3.3 2.67 49L SURFACE PICK STRBNGTH, IGT. PIB FLUID

GMEANS 146.5 69.3

95* ELLIPSE: 685. 1 49.4

1.00 WITH GAMMA - 17 DEGREES

52
REPORT NO. 58 S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T50-1 TABLE i SURFACE PICK STRENGTH , WAX NUMBER

TAPPI STANDARD T459 GS-75, SURFACE STRENGTB OF PAPER (WAX PICK TEST) SAMPLE PRINTING SAMPLE PRINTING TEST D." 5 LAB J55 93 GRAMS PBS SQUARE METER J93 89 GRAMS PER SQUARE METER

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

L 1 0 5 12.40 -•25 -.27 .55 1.06 9.00 15 -. 14 .00 .00 SOW 6 LI 05

LI 22 13.00 .35 .38 1.00 1.94 7.00 -2.15 2.02 .00 • 00 50W a LI 22

LI 5

8

13.00 .35 .38 .00 .00 9. 40 .25 . 23 .55 1 • 66 50B e LI 56

LI 62 13.00 .35 .38 .00 • 00 9.00 -. 15 -. 14 .00 • 00 50W 0 L162 L173A 12.20 -.45 -.48 • 45 .87 8. 40 -.75 -.71 .55 1.66 50W 6 L173A

L182W 12.80 • 15 • 16 .45 .87 9.00 -.15 -. 14 .00 • 00 sow a L182W

Li 83 13. 20 .55 .59 • 84 1.62 9.20 .05 .04 .45 1.35 5 OW a L 1 63 L213 13.40 .75 • 61 .55 1.06 1 0.00 . 85 .79 .00 • 00 sow a L213

L22 5 14.00 1.35 1.45 .00 . 00 9.20 . 05 • 04 .45 1.35 50W e L225

L22 8 10.40 -2.25 2.41 .55 1.06 7.20 -1.95 1. 83 .45 1,35 5 OW a L228

L23 0 12.40 -.25 -.27 .55 1.06 9.40 .25 .23 .55 1.66 50W a L230 L236 12.00 -.65 -.69 .00 .00 10.00 . 85 .79 .00 • 00 50W a L236

L24 3 10.80 -1.85 1.98 1.10 2. 13 8.40 -.75 -.71 .55 1 • 66 50W a L243 L285 13.00 .35 .38 .71 1.37 1 1.20 2.05 1.92 1. 10 3.31 50W a L2 8S L339 13.80 1.15 1.24 1.48 2.88 9.40 .25 .23 .55 1.66 50W a L339

L56 7 12.60 -.05 -.05 .55 1.06 10. 80 1.65 1.54 .45 1 • 35 50W a L567 L616 13.00 .35 .38 .00 .00 9.00 -.15 -. 14 .00 • 00 sow a L616

GR. MEAN • 12.65 WAX NUMBER GRAND MEAN - 9. 15 WAX NUMBER TEST DETERMINATIONS * 5 SD MEANS - .93 WAX NUMBER SD 6F MEANS - 1.07 WAX NUMBER 17 LABS IN GRAND MEANS

AVERAGE SDR - .52 WAX NUMBER AVERAGE SDR .33 WAX NUMBER

TOTAL NUMBER OF LABORATORIES REPORTING - 17

Best values: J55 12.7 + 1.6 wax number

J93 9.0 + 1.8 wax number

REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T50-1 TABLE 2 SURFACE PICK STRENGTH, WAX NUMBER

TAPPI STANDARD T459 OS-75, SURFACE STRENGTH OF PAPER (WAX PICK TEST)

FEBRUARY 1979

LAB CODE F MEANS

J55 J93 CeaRDINATESMAJ6S MINOR

AVG

R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L228 a 10.40 7. 20 -2. 90 .69 1.21 50W SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75 ) L243 a 10.80 8.40 -1.69 1.06 1.89 50W SURFACE PICK STRENGTH, WAX (TAPPI T459 6375 ) L236 a 12.00 10.00 .31 1.02 . 00 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 > L173A a 12.20 8« 40 -.87 -.08 1.26 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 ) L230 a 12.40 9. 40 • 06 .34 1.36 50 W SURFACE PICK STRENGTH, WAX (TAPPI T459 6375)

LI 0 5 a 12.40 9* 00 -.27 .11 .53 50W SURFACE PICK STRENGTH, WAX (TAPPI T459 6S75 ) L56 7 a 12.60 10® 60 1.31 1.00 1*21 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 6S75)

L182W a 12.80 9*00 -.04 -.21 .43 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 6S7S > L616 a 13.00 9. 00 . 08 -.38 .00 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 ) L2 85 a 13.00 1 1. 20 1. 87 .91 2e 34 SOW SURFACE PICK STRENGTH, WAX ( TAPPI T459 6S75 )

L12 2 a 13.00 7.00 -1.54 -1.54 • 97 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 6S7S ) LI 62 a 13.00 9.00 .06 -.38 .00 50 W SURFACE PICK STRENGTH, WAX (TAPPI T459 6S75 ) L158 a 13.00 9.40 • 41 -.14 • 83 sow SURFACE PICK STRENGTH, WAX (TAPPI T459 6S75 ) L 1 63 a 13.20 9. 20 .36 -.42 1.49 50W SURFACE PICK STRENGTH, WAX (TAPPI T459 6S75 ) L213 a 13.40 10.00 1. 13 -.12 .53 50W SURFACE PICK STRENGTH, WAX (TAPPI T459 0S7S ) L339 a 13.80 9.40 .87 -.79 2.27 50W SURFACE PICK STRENGTH, WAX (TAPPI T459 0375)

L22 5 a 14.00 9. 20 c 83 -1.07 .68 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 > GMEANS

12.65 9« 1

5

95% ELLIPSE: 3.35 2. 14 1.00 WITH GAMMA - 54 DEGREES

53
WAX

NUMBER

SURFACE PICK STRENGTH, HHX

SAMPLE J55 = 12.6 WRX NUMBER SAMPLE J93 =9.2 WAX NUMBER

1 I L. ^ + . X .

N0T IN GRAND MEANS

cn

“0 ANALYSIS T50-1

LlJ

I Q_

CL

CO

O

O

O

O

O O

Q ffl_

O

O

O O O

O

O

SAMPLE J55

1 r 8.5 9.0 9.5 10.0 1 1 .0 12.0 13.0 14.0 15.0 16.0

NAX NUMBER

54
REPORT NO* 58S TAPP I COLLABORATIVE REFERENCE PROGRAM ANALYSIS T91-1 TABLE 1 CONCORA (CORRUGATING MEDIUM TEST-CMT)

TAPPI STANDARD T809 OS-71

FEBRUARY 1979

SAMPLE BACKING

LAE E 8 8 98 GEAMS PEE SQUARE METES

CODE MEAN DEV N. DEV SDfi R« SDR

LI 82 136.4 9.0 1.61 6. 3 .77

L21 8 117.4 -10. 0 -1.78 9.4 1.16

L24 2 123.9 -3.5 -.63 4. 5 .55 L248 134. 4 7.0 1.25 e .2 1.00 L255 130.3 2.9 • 52 5.9 .73 L269 134. 8 7.4 1 .32 1 0.3 1. 26

L2 8 0 121.0 -6.4 -1.14 1 1.0 1. 35 L289 129.4 2.0 .36 7.4 • 91 L329 127.2 -.2 -.03 11.7 1. 44

L39 4 125.0 -2.4 -•43 3.9 .48

L621 126.

1

-1.3 -•23 5.2 .64 L622 123.2 -4.2 -•75 11.3 1.39 L650 127.0 — . 4 - c 07 10.9 1 • 34

GR. MEAN - 127.4 NEWTONS GRAND MEAN

SD MEANS - 5.6 NEWTONS SD OF MEANS AVERAGE SDR - 8.2 NEWTONS

GR* MEAN - 28.64 POUNDS GRAND MEAN TOTAL NUMBER OF LAB € RAT 0 B IE S REPORTING - 13

Best values: E88 130 + 8 newtons

E89 270 + 50 newtons

SAMPLE

E89 CORRUGATING MEDIUM

125 GRAMS PER SQUARE METER TEST D. - 10 MEAN DEV N.DEV SDR R. SDR VAR F LAB

306.4 36. 8 1.45 15.7 1.06 9 1

N

O LI 82 278.2 8.6 .34 19.3 1.31 9 1

A

0 L216 214.0 — 55. 6 -2. 19 6. 6 .45 9 IG 0 L24 2 286.5 17.0 .67 12.5 .85 91B 0 L248

231.3 -38.3 - 1.51 1 1. 1 .75 9 1 P 0 L255

274.0 4.4 . 17 17.7 1.20 9 1 P 0 L269 275.5 5.9 .23 15.5 1.06 91N 0 L280

255.3 -14. 3 -.56 12.4 .84 9 IP 0 L2 89 280.2 10.6 .42 15.6 1.06 9 i P 0 L329

264.7 -4*9 -.19 1 1.3 .77 9 1 P 0 L394 259.0 -10.6 -.42 16. 5 1.12 9 1 P o L6 2

1

282.0 12.4 .49 19.6 1.33 9 1

P

0 L622

297.4 27.8 1. 10 17.7 1.20 9 1 N <0 L650

269.6 NEWTONS TEST DETERMINATIONS - 1 < 25.3 NEWTONS 13 LABS IN GRAND MEANS AVERAGE SDR - 14*7 NEWTONS

60*60 POUNDS

REPORT NO. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T9 1 - 1 TABLE 2 CONCORA (CORRUGATING MEDIUM TEST-CMT ) TAPPI STANDARD T809 OS-71

FEBRUARY 1979

LAB MEANS COORDINATES AVG CODE F E88 E89 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT--—CONDITIONS

L21 8 0 1 17. 4 278. 2 8. 1 10,4 1.23 91 A FLAT CRUS B STRENGTH, CONCORA, INST RON

L2 80 0 121.0 275.5 5.6 6.7 1.20 91 N FLAT CRUSB STRENGTH, CONCORA, TMI/HXNDE A DAUCH

L622 0 123.2 282.0 12.2 4. 8 1*36 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L242 0 123.9 214*0 -55.7 .7 .50 9 1 G FLAT CRUSH STRENGTH, CONCORA, GAYDON FLAT CRUSH TESTER

L394 0 125.0 264.7 -5.0 2.2 .62 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L621 o 126. 1 259.0 -10.6 . 8 .88 9 1 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L65 0 0 127.0 297.4 27.8 1.8 1.27 91 N FLAT CRUSB STRENGTH, CONCORA. TMI/HINDE A DAUCH L329 © 127.2 280.2 10.6 .7 1.25 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH L289 0 129.4 255.3 -14. 1 -2. 8 .68 9 1 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH L255 0 130.3 231.3 -38. 1 -4.9 *74 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L24 8 0 134.4 286.

5

17.3 -6. 1 • 92 91 B FLAT CRUSH STRENGTH, CONCORA, INSTB0N L269 0 134. 8 274.0 4.8 -7. 1 1.23 9 1 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L 1 82 o 136.4 306 .4 37.2 -7. 1 • 92 9 1 N FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH GMEANS

127. 4 269.6 1.00 95% ELLIPSE: •

CD 16. 1 WITH GAMMA - 87 DEGREES

55
C0NC0RA ( CM

T

o

oo

LO

o

rLOCD

cn a O CD Z

ZD

CD

Q_

LD

LD

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LD

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LD . s)-

SAMPLE E88 = 127. NEWTONS

SAMPLE E88 = 28.6 POUNDS

O

^ - CDO

CsJ CDO

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coH

CsJ CO

z

CD O

1— CD- 3 CsJ LU

z

o

^

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CsJCsJ O

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SAMPLE E89 = 270. NEWTONS

SAMPLE E89 = 60.6 POUNDS

J i i i m +.X.« NOT IN GRAND MEANS

OD

OU ANALYSIS T9 1 - 1

crCO

G)

O

O

o

o

o

o

o

o

o

©

SAMPLE E88

20 40 60 80 100 120 140

NENT0NS

160 180 200 220

10 15 20 25 30

P0UNDS

35 40 45

56
REPORT N0. 58S TAPPI COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T96-1 TABLE l RING CRUSH (COMPRESSION RESISTANCE OF PAPERBOARD)

TAPPI STANDARD T818 OS-76 SAMPLE BACKING SAMPLE CORRUGATING MEDIUM TEST D. 10 LAB E88 98 GRAMS PEE SQUARE METER E89 125 GRAMS PER SQUARE METER

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

LI 0

169 0 9 53.8 3.28 10.4 1.20 290.5 101.3 3.88 14.5 .95 96P u L 1 07

LI 1 4 137.4 21.4 1.30 8. 0 .92 218.0 28.8 1.10 14.4 .94 96P O LI 14

LI 22 106. 1 -8. 0 -.49 18. 8 2. 16 165.9 -23.2 -.89 16. 1 1.05 96 P 0 LI 22

LI 24 106.3 -9. 8 -.60 9.5 1.09 164.6 -24.6 -.94 19.6 1.26 96P 0 LI 24

LI 26 NO DATA REPORTED FOR SAMPLE E88 168.6 -20.6 -.79 8.6 .56 96P M LI 26

LI 4 1 123.0 6.9 .42 10.2 1. 18 209.3 20. 1 .77 15.4 1.00 96P O LI 4 1 LI 57 131.2 15. 1 .92 9.7 1.11 230.9 41.7 1.60 11.4 .74 96 P 0 LI 57

LI 7 1 122.9 6.8 .42 e. i .70 197.8 8.7 .33 20. 1 1.31 96N 0 L 1 7 1 LI 82 127. 1 11.0 .67 9. 1 1.05 202. 1 13.0 .SO 22. 3 1.46 96N 0 LI 82

Li 9 1 114.3 -1.8 -.11 1 5. 1 1.74 187.3 -1.9 -. 07 17.6 1.15 96P a L l 9

L21 8 96.5 -19.6 1.19 9.7 1.12 179.5 -9.7 -.37 17.4 1.14 961 a L2 18 L234 88. 1 -28.0 1.71 9.8 1.13 146.8 -42.4 1.62 19. 1 1.25 96P 6 L234

L237 97.9 -18.2 1.11 4.2 .48 181.9 -7.2 -.28 20.6 1. 34 96P 0 L237 L242 139.5 23.4 1.43 12.8 1.47 2 06.0 16.9 .65 22. 1 1.44 96G •0 L242 L243 131.7 15.6 .95 8.7 1.00 216.2 27.0 1.03 16.7 1.09 96P 0 L243

L30 5 116.5 • 5 .03 9.6 1.10 176. 1 -13.0 -.50 10. 7 .70 96P o L305

L329 53. 4 -62.7 3.62 3.0 .34 93.0 -96.2 3.68 6.4 .42 96P i) L329

L333 89. 4 -26.7 1.62 3.4 .40 127.4 -61.7 2.36 5. 1 .34 961 0 L333

L336 105.9 -10.2 -.62 6.0 .70 163.9 -25.2 -.97 12.9 .84 96P O L336

L35 O 147. 2 31. 1 1 .90 9.2 1. 07 230.0 40.8 1.56 13.9 .91 96P 0 L350 L393 110.3 -5.8 -.35 6. 3 .96 202.4 13.2 .51 13.0 . 35 96P 0 L393

L553 139.2 23. 1 1.41 12.4 1.43 221.5 32.4 1.24 16.6 1.09 96P 0 L5 53 L562 113.0 -3. 1 -.19 6.4 .73 184. 1 -5.0 -. 19 16. 4 1.07 96P 0 L562

L570 NO DATA REPORTED FOR SAMPLE E88 149.9 -39.3 1.50 6.6 .43 96 P M L570

L61 0 127. 2 11. 1 .68 8.7 1.00 196.6 7.5 .29 14.6 .96 96P 6 L610

L62I 68.6 -27.5 1.67 3.4 .39 143.9 -45.3 1.73 9.2 .60 96P O L621 L649 118. 3 2.2 . 14 4.3 .SO 197.0 7.9 .30 10. 1 .66 96P 0 L649

L65 O 119.3 3.2 .20 9.5 1.10 194.0 4.9 . 19 20. 1 1.32 96N 0 L650

L663 105.0 -11. 1 -.68 5.2 .60 185.5 -3.7 -.14 8.9 .58 96P 0 L663

L6 86 114.2 -1.9 -. 1 1 7.5 . 86 189.3 • 2 .01 13. 8 .90 96N O L6 86

GR 0 MEAN - 116.1 NEWTONS GRAND MEAN - 189.1 NEWTONS TEST DETERMINATIONS - 10 SD MEANS 16.4 NEWTONS SD OF MEANS - 26. 1 NEWTONS 26 LABS IN GRAND MEANS AVERAGE SDR - 8.7 NEWTONS AVERAGE SDR - 15.3 NEWTONS

GR« MEAN - 26.10 POUNDS GRAND MEAN • 42.52 POUNDS

TOTAL NUMBER OF LABORATORIES REPORTING - 30

Best values: E88 110 + 30 newtons

E89 190 + 40 newtons

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

107, 329.

57
REPORT NO© 58S TAPP I COLLABORATIVE REFERENCE PROGRAM FEBRUARY 1979 ANALYSIS T96-i TABLE 2 RING CRUSH (COMPRESSION RESISTANCE OF PAPERBOARD)

TAPPI STANDARD T818 OS- 76 LAB MEANS COORDINATES AVG CODE F £88 E89 MAJOS MINOR 6. SDK VAR PROPERTY— -TEST INSTRUMENT-*

L57 0 M 149.9 .43 96 P RING CRUSB, TMI/HINDE A DAUCH

Li 26 M 168. 6 .56 96 P RING CRUSH. TMI/HINDE & DAUCH

L3 29 ft 53.4 93.0 -1 14.7 4.5 .38 96 P RING CRUSH. TMI/HINDE s. DAUCH L234 0 88. 1 146. 8 -50.7 2.3 1.19 96 P RING CRUSH. TMI/HINDE A DAUCH

L621 0 ee.6 143.9 -52.9 .3 .50 96 P RING CRUSH. TMI/HINDE A DAUCH

L333 0 89.4 127. 4 -66.7 -8.8 .37 961 RING CRUSH, INSTR6N

L21 8 6 96.5 179.5 -18.3 1 1.8 1. 13 961 RING CRUSH, INSTRON

L237 0 07.

9

181.9 -15.6 1 1.9 .91 96 P RING CRUSH, TMI/HINDE A DAUCH

L66 3 0 105.0 185.5 -8.8 7.7 .59 96P RING CRUSH, TMI/HINDE A DAUCH

L336 0 1 05.9 163.9 -26.9 -4. 2 .77 96P RING CRUSH, TMI/HINDE A DAUCH

Li 24 0 106.3 164.6 -26. 1 -4.2 1.19 96P RING CRUSH, TMI/HINDE A DAUCH

L 1 2 2 0 108. 1 165.9 -24.0 -5. 1 1.61 96 P RING CRUSH, TMI/HINDE A DAUCH L393 0 110.3 202.4 8.4 11.7 .90 96 P RING CRUSH, TMI/HINDE A DAUCH

L562 0 1 13.0 184. 1 -5.9 . 1 .90 96 P RING CRUSH, TMI/HINDE A DAUCH

L6 86 0 114.2 189.3 -.6 1.7 .88 96 N RING CRUSH, TMI/HINDE A DAUCH

L i 9 i e 1 14. 3 187.3 -2.5 .5 1.45 96P RING CRUSH, TMI/HINDE A DAUCH L305 0 116.5 176.1 -10.9 -7. 1 .90 96P RING CRUSB, TMI/HINDE A DAUCH L649 0 116.3 197.0 7.9 2. 1 .58 96 P RING CRUSH. TMI/HINDE A DAUCH

L65 0 0 1 19. 3 194.0 5.8 -.3 1.21 96N RING CRUSH, TMI/HINDE A DAUCH

LI 7 1 0 122.9 197.8 10.9 -1.4 1.01 96 N RING CRUSH, TMI/HINDE A DAUCH

L14 1 0 123.0 209.3 20.8 4.4 1.09 96 P RING CRUSH, TMI/HINDE A DAUCH

L 1 82 0 127. 1 20 2. 1 16.8 -2.8 1.25 96 N RING CRUSH, TMI/HINDE A DAUCH L610 0 127. 2 196.6 12. 1 -5.7 .98 96 P RING CRUSB, TMI/HINDE A DAUCH

Li 57 0 131.2 230.9 43.6 8.4 .93 96 P RING CRUSH, TMI/HINDE A DAUCH

L24 3 0 131.7 216.2 31.2 .5 1.05 96 P RING CRUSH, TMI/HINDE A DAUCH

Li i 4 6 137.4 218.0 35.7 -3.6 .93 96 P RING CRUSH, TMI/HINDE A DAUCH

L553 o 139.2 221. S 39.6 -3.3 1.26 96 P RING CRUSH, TMI/HINDE A DAUCH

L24 2 o 139.5 206.0 26.5 -11.5 1.46 96 G RING CRUSH, GAYDON FLAT CRUSH

L35 0 0 147.2 230.0 51.0 -5.8 .99 96 P RING CRUSH, TMI/HINDE A DAUCH

Li 07 * 169. 9 290.5 1 14.6 5. 8 1.08 96 P RING CRUSB, TMI/HINDE A DAUCH GMEANS: 116. 1 189.1 1.00 9S* ELLIPSE: 80.4 16.8 ITH GAMMA • 59 DEGREES

58
LDCD

O

CD

LD

LD

O

LD

LDdCOQ

Q_

LD

CD

CD

CD

LD

CXI

o

CXI

RING CRUSH

SAMPLE E88 = 116. NEWTONS SAMPLE E89 = 189. NEWTONS

SAMPLE E88 =26.1 POUNDS SAMPLE E89 = 42.5 POUNDS

5 10 15 20 25 30 35 40 4 5

POUNDS

59
REPORT Ne. 58 E TAPP I C61LABORATI VE REFERENCE PROGRAM FEBRUARY 1979

SUMMARY TABLE

SAMPLE GRAND SD UF AVER REPL LABS LABS REPL TEST METB0D CODE MEAN MEAN SOB CRP INCL PARTIC TAPPI REPEAT REPR8D BURSTING STRENGTH, MODEL C K37 27,71 1.99 1.83 15 41 49 10 1.60 5.59

T1 0-1 PS I J 87 17,32 1. 25 1.08 .95 3.52 BURSTING STRENGTH, MODEL C-A K37 27,26 2. 07 1.87 15 37 37 10 1.64 5. 82

Tl 0 — 2 PSI J 87 17,62 1. 95 1.06 .93 5.39 BURSTING STRENGTH, HIGH RANGE H41 54,5 1.8 2.7 15 32 44 10 2.4 5.2

Tl 1-1 PSI B56 38,6 2.2 3.0 2.7 6.4 TEARING STRENGTH, DEEP CUTOUT E85 39,75 1.95 1.22 15 117 138 10 1.07 5.44

T15-1 GRAMS B96 46,98 2.86 1.52 1.33 7.95 TEARING STRENGTB, NO CUTOUT J 42 64,2 2.5 2.8 15 1

1

14 10 2.5 7.2

Tl 7-1 GRAMS K49 120,4 5. 1 6.6 5.7 14.4 TENSILE STRENGTH, PACKAGING PAPERS J01 5, 59 .31 .21 20 49 53 12 .17 .87

T19-1 KILONEWTON/M J 1

6

8, 81 .40 .30 .24 1. 12 TENSILE STRENGTH, CUE TYPE J71 3,68 . 16 .15 20 45 52 12 . 12 .45

T20-1 KILONEWTON/M K39 4,98 .26 .22 .18 .72 TENSILE STRENGTH, PENDULUM TYPE J71 3,77 . IS .18 20 34 38 12 . 14 .50 T20-2 K I LO NEWTON/M K39 5, 04 .21 .24 . 19 .59

T.E,A.

,

PACKAGING PAPERS J01 74,5 9.3 8.8 20 18 18 12 7. 1 26.2

T25-1 JOULES/SC M J 1

6

118,8 21.1 11.6 9.3 58.6

T, E* A* , PRINTING PAPERS J71 40,4 4.0 4.4 20 17 19 12 3.6 11.2

T26-1 J0ULES/SG M K39 54, 4 5.5 5.8 4.6 15.6 EL0NGATI6N TG BREAK, PACKAGING PAPER JOl 2, 1 16 .128 .173 20 17 19 12 . 139 .366

T28-1 PERCENT J 16 2, 156 .240 . 128 . 103 .669 EL0NGATI6N TO BREAK, PRINTING PAPER J71 1,613 . 1 80 . 139 20 17 19 12 .111 .503

T29-1 PERCENT K39 1,710 .163 .130 . 104 .455 FOLDING ENDURANCE ( MIT ) B69 181, 79. 59. 15 44 51 10 51. 220. T30-1 DOUBLE FOLDS B88 47. 17. 18. 16. 47. FOLDING ENDURANCE ( MIT > B69 2,20 .23 .17 15 46 51 10 .15 .64 T30-2 LOG! 10 ) FOLD B88 1,63 .20 .19 .16 .57 STIFFNESS, GURLEY K03 240,5 13.8 13.2 10 34 37 10 11.5 38.2

T35-1 GURLEY UNITS K4 1 111,0 12.6 7.2 6.3 35.0 STIFFNESS, TABER A65 26,6 .8 1.3 10 28 32 5 1.6 2.6

T36-1 TABER UNITS A77 27.9 1.0 1.4 1.8 3.0 SURFACE PICK STRENGTH, IGT J55 146,5 2 06.

1

3.7 4 10 13 4 5. 1 571.0

T49-1 KP CM/SEC J93 69.3 67.3 7.3 10. 1 186.5 SURFACE PICK STRENGTH, WAX J55 12,65 .93 .52 5 17 17 5 .64 2.58

T50-1 WAX NUMBER J93 9. 15 1.07 .33 .41 2.95 CONCORA ( CMT ) E 88 127.4 5.6 8.2 10 13 13 10 7.1 15.5

T9 1 — 1 NEWTONS E89 269,6 25.3 14.7 12.9 70.2 RING CRUSH E88 116,1 16.4 8.7 10 26 30 10 7.6 45.5

T9 6- 1 NEWTONS E89 189, 1 26. 1 15.3 13.4 72.3

60
NBS-114A (REV. 9-78)

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO. TAPPI CRP 58S

3. Recipient's Accession No.

4. TITLE AND SUBTITLE

Technical Association of the Pulp and Paper Industry

COLLABORATIVE REFERENCE PROGRAM FOR PAPER

Report #58S

5. Publication Date June 8, 1979

7. AUTHOR(S)

R# G« Powell, J« Her lick

8. Performing Organ. Report No. NBSIR 79* 1 375

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, DC 20234

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, VA 22066

and Technical Association of the Pulp and

Paper Industry

13. Type of Report & Period Covered FINAL

15. SUPPLEMENTARY NOTES

| | Document describes a computer program; SF-185, FIPS Software Summary, is attached.

16. ABSTRACT (A 200-word or less factual summary of moat significant information. If document includes a significant bibliography or

literature survey, mention it here.)

Collaborative Reference Programs

tories with the means for checki

uniformity of their testing in c participating laboratories# An

grams is the provision of realis

the testing art. This is one of

averages for each participant, w variability, and other informal!

dards committees#

provide participating laborang periodically the level and

omparison with that of other

important by-product of the protic pictures of the state of

the periodic reports showing

ithin and between laboratory

on for participants and stan17. KEY WORDS (six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unlees a proper name;

separated by semicolons)

Collaborative reference program; Laboratory evaluation# Paper#

Precision# Reference samples. Testing calibration

18. AVAILABILITY Unlimited

XX For Official Distribution. Do Not Release to NTIS

! Order From Sup. of Doc., U.S. Government Printing Office, Washington, DC

20402, SD Stock No. SN003-003-

| | Order From National Technical Information Service (NTIS), Springfield, VA. 22161

19. SECURITY CLASS

(THIS REPORT)

UNCLASSIFIED

20. SECURITY CLASS

(THIS PAGE)

UNCLASSIFIED

21. NO. OF

PRINTED PAGES

67

22. Price

USCOMM-DC

This diagram is composed of two fullsize overlaid tracings. One tracing

was made from the Thwing-Elmendorf

tear tester with NO CUTOUT (old style).

The other tracing was made from the

Thwing-Elmendorf tear tester with

DEEP CUTOUT. The cross hatched area represents the metal removed from the

swinging sector when the deep cutout

(new) style was created.

DEEP CUTOUT instrument

is 5/8 inch across

NO CUTOUT instrument

is 1 1/4 inch across

Note shape of pendulum

sector with respect to

an imaginary line drawn

across the top of the

specimen clamp