TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

*

g.

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 59S

STRENGTH TESTS

U.S. DEPARTMENT OF COMMERCE

National Bureau of Standards
NBS COLLABORATIVE REFERENCE PROGRAMS

TAPPI Paper and Board (6 times per year)

Bursting strength

Tearing strength

Tensile breaking strength

Elongation to break

Tensile energy absorption

Folding endurance

Stiffness

Air resistance

Grammage

Smoothness

Surface pick strength

K & N ink absorption

pH

Opacity

Blue reflectance (brightness)

Specular gloss, 75°

Thickness

Concora (flat crush)

Ring crush

FKBG-API Containerboard (48 times per year)

Mullen burst of linerboard

Concora test of medium

MCCA Color and Appearance (4 times per year)

Gloss at 60°

Color and color difference

CTS Rubber (4 times per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

CTS Thermal Insulation Materials (2 times per year)

19 test methods for thermal insulation materials covering:

thermal properties; strength properties; dimensions, stability,

and density properties; fire properties; and properties of

vapor barriers

ASTM Cement (2 times per year)

Chemical (11 chemical components)

Physical (8 characteristics)

AASHTO Bituminous

Asphalt cement (2 times per year)

Cutbacks (once a year)

NBS Collaborative Reference Programs

A05 Technology Building

National Bureau of Standards

Washington, DC 20234

Rev. 3/79
TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

FEB 2 7 1980

not 9\ce. -ClA'c.,

€D

U5(o

c , ^

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

Report No. 59S

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 79-1802 U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

INTRODUCTION

Reports 59S and 59G comprise the tilth 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®

Motes 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

MBS-TAPPI Collaborative Reference Program

Office of Testing Laboratory Evaluation Technology

July 27, 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 Summary Report, Showing the Data from all Participants, is also prepared. In

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

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

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

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

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

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

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

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

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

ii
TABLE ©F CONTENTS

Analyses In This Report

PAGE

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

Introduction

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

11-

1 Bursting Strength - Up to 100 psi

15-1 Tearing Strength - Deep Cutout

17-1 Tearing Strength - No Cutout

19-

1 Tensile Breaking Strength - Packaging Papers

20-

1 Tensile Breaking Strength - Printing Papers. CRE

20-2 Tensile Breaking Strength - Printing Papers, pendulum

25-

1 Tensile Energy Absorption - Packaging Papers

26-

1 Tensile Energy Absorption - Printing Papers

28-

1 Elongation to Break - Packaging Papers

29-

1 Elongation to Break - Printing Papers

30-

1 Folding Endurance. MIT type

30-2 Folding Endurance. MIT type, log (base 10)

35-

1 Stiffness. Gurley

36-

1 Stiffness. Taber

49-

1 Surface Pick Strength. IGT

50-

1 Surface Pick Strength. Wax

91-1 Concora (Flat Crush)

96-1 Ring Crush

Summary

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

Analyses In The G Report

40-1 Air Resistance. Gurley 6il 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 Opacity, White (69%) Backing

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

60-3 Opacity, Paper Backing, Elrepho type

65-1 Blue Reflectance (Brightness), Directional

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

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

75-1 Specular Gloss, 75 degree

90-1 Thickness (Caliper)

95-1 Grammage (Basis Weight)
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/m

2

14.59

in. -lb/ in.

2 J/m2 175.1

kg-m/m2 J/m2 9.807

Bending stiffness g« cm yN*m 98.07

Flat-crush strength (Concora) lb N 4.448

Ring-crush (TAPPI) lb N 4.448

(ISO) lb/6.00 in. kN/m 0.0292

Thickness mil ym 25.40

iv
KEY TO TABLES AND GRAPHS

MEAN - 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.

GRAND MEAN -

(GR. MEAN)

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.

SD OF MEANS - (SD MEANS)The standard deviation of the laboratory

MEANS about the GRAND MEAN ; an index of the

among-laboratory precision.

DEV - The deviation or difference of the laboratory

MEAN from the GRAND MEAN.

N. DEV - 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. AN. DEV of more than 2 or less than -2 may indicate that the

participant is not following the procedure

considered standard for this analysis

.

SDR - The standard deviation of repeated measurements

;

that is, of individual test determinations

about their MEAN.

AVERAGE SDR - The average of the individual laboratory

SDR's; an index of the within-laboratory

precision of repeated measurements

.

R. SDR - . 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 0.40 1.77

10 0.46 1.67

15 0.56 1.53

20 0.6l 1.45

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 parti cipant 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% cf

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)

REPL CRP -

REPL TAPPI -

REPEAT -

REPROD -

Best values

In addition to several quantities already defined

above the summary shows the following values for

each test method:

The number of replicate test determinations used

in this Collaborative Reference Program.

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.

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

TAPPI reproducibility, a measure of the be tween

laboratory precision of a test result.

Given at the end of Table 1 for each method for

which sufficient information is available. These

best values are estimates based on a careful

examination of all data, both current and past,

with special attention to results obtained by the

National Bureau of Standards and other recognized

reference laboratories in this and other countries.

All participants using equipment that is standard

for the analysis should be able to achieve results

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

shown along with the best values

.

4
RfcHORT Nfl. 59 S TAPPI C8LLAB0RATI VE REFERENCE PROGRAM APRIL 1979 ANALYSIS 110* 1 TABLE 1 BURSTING STRENGTH, PSI TAPPI STANDARD T403 6S-76, BURSTING STRENGTH OF PAPER • PERKINS MODEL C SAMPLE PRINTING SAMPLE PRINTING TEST D* '* 15 LAB JS7 76 GRAMS PER SQUARE METER J40 85 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 16,77 -.75 -.62 I. 28 1. 13 27. 60 -1.96 •1.02 1. 24 .76 IOC 0 LI 21

LI 3 1 14,73 -2.79 -2.31 1.71 1.52 24. 53 -5.03 -2.62 2.17 1. 32 IOC » L 1 3

1

LI 34 17,80 .28 .23 .77 .69 32.27 2.70 1.41 1.53 .93 IOC 0 L 1 34

LI 5 0 18,90 1.38 1.15 1.34 1. 19 30.20 .64 .33 .96 .58 IOC 0 L 1 50

LI 53 17, 10 -.42 -.35 1.20 1. 06 28. 67 -.90 -.47 1.36 .83 IOC 0 LI 53

Li 58 17,33 -. 19 -. 15 1.45 1. 28 29.33 -.23 -. 12 1.95 1. 19 IOC 0 L 1 58

LI 6 7 17.70 .18 . 15 .59 .52 27.40 -2.16 -1. 13 .85 .52 ioc 0 L 1 67

LI 83 17,37 -.15 -. 13 .79 .70 28. 10 -1.46 -. 76 1.66 1.01 IOC 0 L 1 83

LI 9 1 13.87 -3.65 -3.03 .77 .68 28. 10 -1.46 -.76 1.74 1.06 IOC tt L 1 9

1

L2C3A 16.67 -.85 -.71 . 86 .76 29. 10 -.46 -.24 1.45 . 88 IOC 0 L203A

L203B 16. 10 -1.42 -1.18 1.31 1. 16 31.30 1.74 .91 2.16 1.31 1 OC 0 L2 03B L2C7 18.03 .51 .43 lo 20 1. 07 29.29 -.27 -.14 1.19 .72 IOC 0 L207

L212 17. 10 -.42 -.35 1.11 .98 27. 87 -1.70 -.89 1.73 1.05 1 OC 0 L2 12 L22 3A 20.08 2.56 2.12 1.68 1. 49 30. 10 .54 .28 1.17 .71 IOC 0 L2 23A

L22 5 17.50 -.02 -.02 .96 . 85 30.53 .97 .51 1 o 27 .77 1 OC 0 L225

L232 13.90 -3.62 -3.00 1.20 1. 06 26.60 -2.96 - 1.55 1.66 1.01 1 OC * L232

L237A 16.80 -.72 -.60 .73 .64 29.80 .24 . 12 1.03 .63 1 OC 0 L237A

L237B 17.57 .05 .04 .56 . 50 2 8.57 -1.00 -.52 .92 .56 1 OC 6 L237B

L243 17.87 .35 .29 1.04 .92 28.63 -.93 -.49 .81 .49 1 OC 0 L243

L24 8 18.83 1.31 1.09 1.20 1. 06 29. 30 -.26 -. 14 1.23 .75 10E 0 L243

L249 17.92 .40 .33 1.21 1. 07 29.97 .40 .21 1.51 .92 IOC 0 L249

L261 18.69 1.17 .97 1.03 .92 29.90 .34 .18 1.38 .84 IOC 0 L261 L264 17.47 -.05 -.04 .83 .74 33.00 3.44 1.79 1.20 .73 IOC 0 L264

L26 8 18.40 .88 .73 1.24 1. 10 30. 33 .77 .40 1.72 1.04 IOC 0 L268

L27 8 16.47 -1.05 -.87 1.03 .91 2 8. 07 -1.50 -.78 1.91 1.16 IOC 0 L278

L279 18.05 .53 .44 1.20 1. 06 29.03 -.53 -.28 1.85 1. 13 IOC 0 L279 L299 19.07 1.55 1.28 1.62 1.44 32.57 3.00 1. 57 1.67 1.01 ioc 0 L299

L305 18.00 .48 .40 .76 .67 28. 90 -.66 -.35 1.82 1. 1

1

IOC 0 L3C5

L31 1 18. 10 .58 .48 1.23 1. 09 31.70 2.14 1. 11 1.54 .94 IOC 0 L31 1 L312 18.75 1 q 23 1.02 .94 .83 31.84 2.28 1.19 1.21 .74 IOC 0 L312

L321 18.60 1.08 .90 1.79 1. 59 33.40 3.84 2.00 1.93 1.17 IOC 0 L3 21 L326 17. 10 -.42 -.35 .87 .77 29.03 -.53 -.28 2.00 1.22 IOC 0 L326

L330 17.47 -.05 -.04 1.00 . 89 31.85 2. 29 1. 19 3.40 2.07 IOC 0 L330

L33 1 17.47 -.05 -o 04 1.51 1.33 29.40 -.16 -. 09 1.30 .79 10Y 0 L331 L333 17.87 .35 .29 2.50 2.22 26.93 -2.63 -1.37 4.23 2.57 IOC 0 L333

L339 10.40 -7.12 -5.91 .51 .45 16.00 -13.56 -7.08 .00 .00 IOC H L339

L34 4 17.33 -.19 -. 15 1.22 1. 08 28.97 -.60 -.31 1.89 1. 15 IOC 0 L344

L356 18.51 .99 .82 .73 .65 26.90 -2.66 -1.39 2.20 1.34 IOC 0 L3 56 L358 16. 83 -.69 -.57 .72 .64 29.97 .40 .21 .82 .50 IOC 0 L358

L36 0 18.30 .78 .65 1.19 1.06 29.33 -.23 -. 12 1.58 .96 IOC 0 L360

L390 17.80 .28 .23 1.32 1. 17 32.03 2.47 1.29 1.83 1.11 IOC 0 L390

L56 8 18. 17 .65 .54 .96 .85 29.63 .07 .04 2.24 1.36 IOC 0 L568

L599 17.62 .10 .08 .90 .79 29.70 . 14 .07 1.89 1. 15 IOC 0 L599

L684 16.70 -.82 -.68 1.00 . 88 27.73 -1.83 -.96 1.79 1.09 IOC 0 L6 84 L696 18. 15 .63 .53 1.36 1.21 33.35 3.79 1.98 2.00 1.22 IOC 0 L696

GKe MEAN 17.52 PSI GRAND MEAN * 29.56 PSI TEST DETERMINATIONS • 15 SD MEANS ’ 1.21 PSI SD OF MEANS - 1.92 PSI 44 LABS IN GRAND MEANS

AVERAGE SDR • 1.13 PSI AVERAGE SDR • 1.64 PSI

GR« MEAN * 120.8 KIL0PASCAL GRAND MEAN - 203.8 K IL0PASCAL

LI 28 17.47 -.05 -.04 .83 .74 29.80 .24 .12 1.08 .66 10B Ll 26 L242 19.78 2.26 1.87 1*14 1. 01 31,81 2.25 1. 17 1.11 .68 10T L242

L25 0L 17.16 -.36 -.30 1.22 1.08 27.31 -2.26 •1. 18 1.47 .89 ION L250L

L269 21,93 4.41 3.66 1.67 1.48 33.13 3, 57 1.86 2.07 1.26 10A L269 TOTAL NUMBER OF LABORATORIES REPORTING • 49

Best values: J87 17.7 + 2.2 psl

J40 29.7 + 3.1 psi

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

5
REPORT NO. 5 9S TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS T10-1 TABLE 2 BURSTING STRENGTB. PSI

APRIL 1979

TAPPI STANDARD T403 OS-76, BURSTING STRENGTH OF PAPER - PERKINS MODEL C LAB MEANS COORDINATES AVG

CODE F J87 J40 MAJOR MINOR R. SDR VAR PROPERTY— -TEST INSTRUMENT—-iCONDITIONS

L339 0 1 0.40 16. 00 >15.26 1.35 .22 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LL 9

1

* 13.87 28.10 -2.76 2.81 .87 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L23 2 « 13.90 26.60 -4. 13 2.20 1.04 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

LI 31 * 14.73 24.53 -5.72 .64 1.42 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L2 03B 0 16.10 31.30 1.06 1.98 1.24 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L27 8 0 16.47 28.07 -1.79 .40 1.03 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L20 3A 0 16.67 29.10 -.76 .61 .82 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L684 0 16.70 27.73 -2.01 .05 .99 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 2

1

0 16.77 27.60 -2. 10 -.06 .94 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L237A 0 16.80 29. 80 -.06 .75 .64 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP L3S8 0 16.83 29.97 .11 .79 .57 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 53 0 17. 10 28. 67 -.99 .04 .94 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L21 2 0 17o 10 27.87 -1.73 -.27 1.01 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L326 0 17.10 29.03 -.65 .18 .99 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L250L 17.16 27.31 -2.22 -.53 .98 ION BURSTING STRENGTH UP TO 45 PSI. LHOMARGY,, MAN.CLAMP, 20C,65*RH

L344 0 17.33 28.97 -.62 -.06 1.12 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L 1 5 8 0 17.33 29. 33 -.28 .08 1. 23 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

LI 83 0 17.37 28. 10 -1.41 -.42 . 85 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 28 17.47 29. ee .20 . 14 .70 10B BURSTING STRENGTH UP TO 45 PSI, PERKINS B. MANUAL CLAMP

L33 1 0 17.47 29.40 -. 17 -.01 1.06 10Y BURSTING STRENGTH UP TO 45 PSI, PERKINS C, M .CLAMP, TRANSDUCER

L330 0 17.47 31.85 2.09 .93 1.48 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L-264 0 17.47 33.00 3. 15 1.37 .73 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L22 5 0 17.50 30. 53 .89 .39 .81 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L237B 0 17.57 28.57 -.90 -.43 .53 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L599 0 17.62 29.70 . 16 -.04 .97 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 67 0 17.70 27.40 -1. 93 -1.00 .52 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L39 0 0 17.80 32.03 2.39 .69 1.14 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

LI 3 4 0 17.80 32.27 2.60 .78 .81 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L243 0 17.87 28.63 -.73 -o 68 .71 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L333 0 17.87 26.93 -2.30 -1.33 2.40 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP L249 0 17.92 29.97 .53 -.22 .99 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L305 0 18.00 28.90 -.43 -.70 .89 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L207 0 18.03 29.29 -. 05 -.58 .89 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L279 0 18.05 29.03 -.29 -.69 1.09 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

1-31 1 0 18. 10 31.70 2. 19 .29 1.01 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L696 0 18. 15 33.35 3. 74 .87 1.21 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L568 0 18. 17 29.63 .31 -.57 1.11 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L36 0 0 18.30 29.33 .09 -.81 1.01 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L268 0 18.40 30.33 1.05 -.52 1. 07 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L3 56 0 18.51 26.90 -2. 08 -1.94 .99 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L321 0 18.60 33.40 3.96 .48 1.38 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L261 0 18.69 29.90 .76 -.95 .88 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L312 0 18.75 31.84 2. 58 -.26 .79 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

L248 0 18.83 29.30 .26 -1.31 .90 1 OE BURSTING STRENGTH UP TO 45 PSI, PERKINS C. MANUAL CLAMP

LI 50 0 1 8.90 30.20 1. 12 -1.03 .89 1 OC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L299 0 19.07 32.57 3.37 -.27 1.23 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS C, MANUAL CLAMP

L24 2 19.73 31.81 2.94 -1.22 .84 10T BURSTING STRENGTH UP TO 45 PSI, L*W, MANUAL CLAMP

L223A 0 20.08 30. 10 1.48 -2.16 1. 10 IOC BURSTING STRENGTH UP TO 45 PSI, PERKINS c. MANUAL CLAMP

L269 21.93 33.13 4. 99 -2.70 1.37 10A BURSTING STRENGTH UP TO 45 PSI, PERKINS A. MANUAL CLAMP

GMEANS: 17.52 29. 56 1.00 95* ELLIPSE: 5. 22 2.55 WITH GAMMA - 67 DEGREES
KIL0PRSCRL

160

170

180

190

200

210

220

230

240

250

BURSTING STRENGTH MODEL C

SAMPLE J87 = 17.5 PSI SAMPLE J40 = 29.6 PSI

SAMPLE J87 = 121 K I L0PASCAL SAMPLE J40 = 204 KILOPASCAL

PSI

I 1 1 1 1 1 T T

1 1

; 70 80 90 100 1 10 120 130 140 150 160 170

KIL0PRSCRL

7
REPORT NO. 59 S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T10-2 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#

-1 15 LAB J87 76 GRAMS PER SQUARE METER J40 85 GRAMS PER SQUARE METER

C6DE MEAN BEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB L100 19.68 1.77 1.30 1.16 .98 31.87 2.30 1.31 1. 14 .71 1 CD 0 LI 00

LI 05 11.63 -6.28 -4,59 1.81 1.54 23.37 -6.20 -3.51 1.49 .93 10D X L105 L106C 16.73 .02 .60 1.03 .88 29. 07 -.50 -.28 1.58 .98 10D 0 L106C

LI 15 18.63 .72 .53 1.29 1.09 31.03 1.47 . 83 1.91 1.19 10D 0 LI IS LI 1 8 19.33 1,42 1.04 .90 .77 28. 63 -.93 -.53 1.09 .68 10D 6 LI 18

LI 22 16. 00 -1.91 -1.40 .76 .64 26.73 -2.83 -1.60 1.49 .92 1 OF 0 LI 22

LI 2 5 16.00 -1.91 -1.40 1.89 1.61 29.67 .10 .06 2. 16 1. 34 10D 0 L125

L 1 4 1 17.90 -.01 -.01 .93 .79 28.30 -1.26 -.71 1.77 1. 10 10D e L141

LI 4 8 18.53 .62 .46 1.36 1. IS 29.53 -.03 -.02 1.64 1.02 10D 0 LI 48 L157 18.97 1.06 .77 1. 36 1. 15 31.13 1.57 .89 1.85 1.15 10D 0 LI 57

LI 59 16.83 -1.08 -.79 1.74 1.48 26. 82 -2.74 -1.55 1. 15 .71 10D 0 LI 59

LI 62 15.60 -2.3 1 -1.69 1.72 1.47 28.27 -1.30 -.73 2.31 1.44 10D 0 L 162

LI 63 17. 57 -.34 -.25 1.57 1.33 29.30 -.26 -. 15 1.16 .72 10D 0 L163

L166 19.03 1.12 .82 1. 16 .98 3 2.23 2.67 1.51 1.45 .90 10D 0 LI 66

LI 76 19. 53 1.62 1.19 .52 .44 31.07 1.50 .85 1.10 .68 1CD 0 LI 76 H 85 19.47 1.56 lo 14 .83 .71 29. 80 .24 . 13 1.52 .95 10D 0 L 1 85

LI 9 0C 16.93 -.9 8 -.71 1.27 1.08 27.90 -1.66 -.94 1.67 1.04 10D 0 L190C

L217 18.33 .42 .31 1.05 .89 29.00 -.56 -.32 1,60 1.00 10F 0 L217 L226B 18. 02 . 1 1 .08 1.10 .93 29.27 -.30 -. 17 1.96 1.22 1 CD 0 L226B

L226C 15.89 -2.02 -1.48 1.23 1. 04 27.92 -1.64 -.93 1.79 1.11 10D 0 L2 26C L233 17.96 .07 .05 1.39 1.18 29.45 -.12 -.07 1.61 1.00 10D 0 L233

L24 1 18.84 .93 .68 1.29 1, 09 31.73 2.17 1.23 1.84 1. 14 10D 0 L24 1 L2S5 16.67 -1.24 -.91 .49 .41 26.67 -2.90 -1.64 1.18 .73 10D 0 L255

L2 57A 18.53 .62 .46 .92 .78 30.93 1.37 .78 1.79 1.11 1 CD 0 L257A

L257B 18.20 .29 .2| 1.32 1.12 31.47 1.90 1.08 2.07 1.28 10D 0 L257B

L257C 18.67 .76 .55 1.40 1. 19 31.67 2.10 1. 19 1. 1 1 .69 10D 0 L257C

L262 18.03 .12 .09 .85 .73 3 0. 23 .67 .38 1.92 1. 19 10D 0 L262 L275 16.03 -1.68 -1.37 1.07 .91 26.69 -2.88 - 1.63 2.43 1.51 10D 0 L275

L280 20.03 2.12 1.56 1.28 1. 09 31.14 1.58 .89 1.39 .87 10D 0 L2 80 L285 16.47 -1.44 -1.06 1.68 1.43 32.63 3.07 1.74 1.93 1.20 10D X L285 L309 19.46 1.55 1. 14 1.07 .91 32. 86 3.30 1.87 1.37 .85 1 OD 0 L309

L34 1 18.27 .36 .26 .70 .60 28.87 -.70 -.39 1.51 .94 10D 0 L341 L352 164. 47 1 46.56 107.27 10.72 9. 1 1 252. 53 222.97 126.29 11.69 7.27 1 OD ft L352 L563 14.09 -3.81 -2.79 1.79 1.52 26.47 -3.09 -1.75 2.52 1.56 10U « L563 L567 18. 41 .50 .36 2.05 1.75 30.07 .50 .29 1.03 .64 1 OD 0 L567

L57 5 17.18 -.73 -.53 1.37 1. 17 27.87 -1.69 -.96 1. 26 .78 1 OD 0 L575

L56 1 17. 13 -.78 -.57 .99 .84 29.93 .37 .21 2.63 1.64 1 OD 0 L581 L652 12.20 -5.7 1 -4.18 1.35 1. 14 26.47 -3.10 -1.75 1.72 1.07 1 OD * L6 52 L68 8 18. 31 .40 .29 .82 31.09 1. 52 .86 1.21 .75 1 OD 0 L688

GR. MEAN • 17.91 PSI GRAND MEAN - 29.56 PSI TEST DETERMINATIONS - 15 SD MEANS * 1.37 PSI SD 6F MEANS - 1.77 PSI 35 LABS IN GRAND MEANS AVERAGE SDR • 2.18 PSI AVERAGE SDR - 1*61 PSI

GR. MEAN - 123.5 KILOPASCAL GRAND MEAN - 203.8 KILOPASCAL TOTAL NUMBER OF LABORATORIES REPORTING “ 39

Best values: J87 18.0 + 2.0 psi J40 29.6 + 2.4 psi

Data from the following laboratories appear to be

off by a multiplicative factor: 352.

Data from the following laboratories were omitted

from the grand means because the tests were performed

in ambient conditions: 652.

8
REPORT NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T10-2 TABLE 2 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS-76. BURSTING STRENGTH OF PAPER - PERKINS MODEL C-A OR C LAB MEANS COORDINATES

C6DE F J87 J40 MAJOR MINOR

LI 05 X 1 1 .63 23.37 -8.69 1.49 L652 * 12.20 26.47 -5.84 2.84

L563 « 14.09 26. 47 -4.74 1.30

LI 62 0 15.60 28.27 -2.40 1.12

L2 26C 0 15.89 27.92 -2.51 .69

L 1 25 0 16.00 29.67 -1.03 1.6 1 LI 22 0 16.00 26. 73 -3.41 -.10

L27 5 0 16.03 26.69 -3.43 -.15 L285 X 16.47 32. 63 1.66 2.96

L25 5 0 16.67 26.67 -3.08 -.68

LI 5

9

0 16.83 26.82 -2. 66 -.72

LI9 0C 0 16.93 27.90 -1.92 -.18

L58 l 0 17. 13 29.93 -.15 .85 L575 0 17. 18 27.87 -1.80 -.39

L 1 63 0 17.57 29.30 -.41 .13

L l 4 1 0 17.90 28.30 -1.03 -.73

L233 0 17.98 29.45 -.05 -.13

L2 26B 0 18.02 29.27 -. 16 -.26

L26 2 0 18.03 30.23 .62 .29

L2 57B 0 18.20 31. 47 1.72 .87 L341 0 18.27 28.87 -.36 -.70

L68 8 0 18.31 31.09 1.47 .57

L217 0 18.33 29. 00 -.21 -.67

L567 0 18.41 30.07 .70 -. 1 1 L257A 0 18.53 30. 93 1.48 .29

L 1 4 8 0 18.53 29.53 .34 -.52

LI 1 5 0 18.63 31.03 1.62 .27

L2 57C 0 18.67 31.67 2.15 .61

LI 06C 0 18.73 29.07 .08 -.96

L24 1 0 18.84 31.73 2.31 .51

LI 57 6 18.97 31. 13 1. 69 .06

L 1 66 0 19.03 32.23 2.83 .64

LI 1 8 0 19.33 28. 63 .07 -1.69 L309 0 19.46 32.66 3.58 .66

LI 85 0 19.47 29. 80 1. 10 -1.13

LI 76 0 19.53 31.07 2. 17 -.44 L100 0 19.68 31. e7 2.91 -.10

L2 6 0 0 2 0.03 31.14 2.52 -.8 1 L3 52 * 164.47 252. £3 266.61 10.81 GMEANS: 17.91 29.56

95* ELLIPSE: 5.48 1.92

AVG

R, SDR VAR PROPERTY—-TEST INSTRUMENT—

1.23 10D BURSTING STRENGTH UP TG 45 PSI

1.11 10D BURSTING STRENGTH UP Tfl 45 PSI 1.54 10U BURSTING STRENGTH UP Tfl 45 PSI

1. 45 10D BURSTING STRENGTH UP TG 45 PSI

1.08 10D BURSTING STRENGTH UP T6 45 PSI

1.47 10D BURSTING STRENGTH UP Tfl 45 PSI .78 1 OF BURSTING STRENGTH UP TG 45 PSI

1.21 10D BURSTING STRENGTH UP TG 45 PSI

1.32 10D BURSTING STRENGTH UP TG 45 PSI

. 57 10D BURSTING STRENGTH UP TG 45 PSI

1. 10 10D BURSTING STRENGTH UP Tfl 45 PSI 1.06 10D BURSTING STRENGTH UP TG 45 PSI 1.24 10D BURSTING STRENGTH UP TG 45 PSI

.97 10D BURSTING STRENGTH UP TG 45 PSI

1.03 10D BURSTING STRENGTH UP TG 45 PSI .95 10D BURSTING STRENGTH UP TG 45 PSI

1.09 10D BURSTING STRENGTH UP TG 45 PSI 1.08 10D BURSTING STRENGTH UP TG 45 PSI

.96 10D BURSTING STRENGTH UP TG 45 PSI

1.20 10D BURSTING STRENGTH UP TG 45 PSI .77 10D BURSTING STRENGTH UP TG 45 PSI .78 10D BURSTING STRENGTH UP TG 45 PSI .94 1 OF BURSTING STRENGTH UP Tfl 45 PSI 1.19 1 OD BURSTING STRENGTH UP TG 45 PSI .95 10D BURSTING STRENGTH UP TG 45 PSI

1.09 10D BURSTING STRENGTH UP TG 45 PSI

1.14 1 OD BURSTING STRENGTH UP TG 45 PSI .94 1 OD BURSTING STRENGTH UP TG 45 PSI .93 1 OD BURSTING STRENGTH UP TG 45 PSI

1. 12 1 OD BURSTING STRENGTH UP TG 45 PSI

1.15 10D BURSTING STRENGTH UP TG 45 PSI .94 1 OD BURSTING STRENGTH UP TG 45 PSI .72 1 OD BURSTING STRENGTH UP TG 45 PSI .88 1 OD BURSTING STRENGTH UP TG 45 PSI .83 1 OD BURSTING STRENGTH UP TG 45 PSI .56 10D BURSTING STRENGTH UP TG 45 PSI .85 1 OD BURSTING STRENGTH UP TG 45 PSI .98 1 OD BURSTING STRENGTH UP TG 45 PSI

8. 19 1 OD BURSTING STRENGTH UP TG 45 PSI

1.00 WITH GAMMA - 54 DEGREES

WITH AIR OR HYDRAULIC CLAMPS

CONDITIONS

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIK CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS C, H. CLAMP, TRANSDUCER

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C. AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C. AIR CLAMP

PERKINS C. H. CLAMP, TRANSDUCER

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

PERKINS CA OR C, AIR CLAMP

9
KIL0PRSCRL

160

170

180

190

200

210

220

230

240

_ CO

Q_

BURSTING STRENGTH » MODEL C-fl

SAMPLE J87 = 17.9 PSI SAMPLE J40 = 29-6 PSI

SAMPLE J87 = 123 K [ L0PASCAL SAMPLE J40 = 204 KIL0PASCAL

80 90 100 1 10 120 130 140 150 160 170

KILOPRSCRL

10
REPORT N6. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS Tll-1 TABLE 1 BURSTING STRENGTB, HIGH RANGE, PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTB OF PAPER - PERKINS MODEL C OR C-A

APRIL 1979

SAMPLE BROWN KRAFT SAMPLE KRAFT TE ST D. 15 LAB B56 76 GRAMS PER SQUARE METER K30 123 GRAMS PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB LlOO 4 1*0 2.4 1.32 2. 8 .96 61.7 2.7 1.02 3.5 .82 i ID 0 LlOO

LI 03 41.7 3. 0 1.68 1.9 .65 61.6 2.6 .98 1.8 .42 i iC 0 L 1 03

LI 07 41*0 2.3 1.29 3. 1 1. 07 60.8 1.8 .67 2.9 .69 1 1C 0 L 107

LI 16 39.4 . e .43 1.9 .65 56.8 -2.2 -. 83 2. 1 .49 1 ID 0 LI 18

LI 22 35.9 - 2 . e -1.55 2.3 .79 56.5 -2.6 -.97 5.2 1.24 1 IF 0 LI 22

LI 28 40.3 1.7 .93 1.3 .45 61.

1

2.0 .77 2.5 .59 1 ID 0 LI 28 L141 37. 8 -.9 -.50 2.2 .77 60. 1 1. 1 .40 4.4 1.05 1 ID 0 L141 L148 39.9 1.2 .67 3.0 1. 06 59.9 .9 .34 5.7 1.34 1 ID 0 L148

LI 59 35.8 -2.9 -1.60 3.0 1.03 56.0 -3. 0 -1. 14 4.0 .95 1 ID 0 LI 59

LI 7 0 37.3 -1.3 -.74 2.4 .85 62.6 3.6 1.35 3. 1 .74 1 1C 0 L 1 70

LI 76 40.9 2.3 1.26 2.6 .89 65.0 6.0 2. 25 3.4 .80 1 ID 0 LI 76

LI 82 38.9 .2 . 1 1 5.0 1.74 60.9 1.9 .72 4.4 1.05 1 ID 0 LI 82 L21 8 39.5 .e .44 3.3 1. 16 58.3 -.7 -.27 3.0 .71 1 ID 0 L218

L232 40.3 1.7 .93 4.4 1.52 52.2 -6.8 -2.57 6.3 1.50 1 1C X L232

L23 7A 39.0 .4 .20 1.7 .59 63.4 4.4 1.65 2.7 .65 1 1C 0 L237A

L237B 39.0 .3 . 17 1. 1 .40 59.4 .4 .14 2.0 .48 1 1C 0 L237B

L23SA 35.6 -3. 1 -1.70 3.3 1. 16 57. 1 -1.9 -.73 6.6 1.55 1 1Y 0 L238A

L243 38.4 -.3 -. 16 2.2 .78 55.9 -3.1 - 1. 19 3.2 .74 1 1C 0 L243

L248 36.5 -2.2 -1.21 5.0 1.73 58.2 -.9 -. 33 4. 1 .96 1 IE 0 L248

L278 37.4 -1.3 -.70 2.8 .99 56.2 -2.9 - 1. 08 7.2 1.70 1 1C e L278

L279 39.7 1. 1 .60 3.6 1.25 62.2 3.2 1.20 7.3 1.72 1 1C © L279

L28 0 41.6 3.2 1.75 2.8 .97 64.2 5.2 1.97 4. 1 .96 1 ID 0 L2 80 L294 38.4 -.3 -.15 3.0 1.05 58.2 -.8 -.32 3,3 .79 1 1C 0 L294

L303 38.8 .2 .09 2.8 .98 57.5 -1.6 -. 59 3.7 .87 11C 0 L303

L33 0 39.1 .5 .26 3.4 1. 18 58.9 -. 1 -. 04 5.4 1.29 1 1C 0 L330 L33 1 38.3 -.4 -.22 2.9 1.01 58.0 -1.0 -.39 4.5 1.07 1 1G 0 L331 L333 38.2 -.5 -.26 4.9 1.71 60.8 1.8 .67 5.0 1.18 1 1C 0 L333

L334 41.0 2.3 1.29 3. 1 1.08 60.4 1.4 .52 3.5 .82 1 ID 0 L334

L344 37.9 -.8 -.44 3.5 1.22 57.5 -1.5 -.58 5,3 1.24 1 1C 0 L344

L356 36.7 -1.9 -1.07 2.3 .79 55.9 -3.2 -1.20 5.9 1.40 1 1C 0 L356 L565 36.4 -.3 -.16 1.2 .41 60.2 1.1 .43 2.4 .57 1 ID 0 L565

L567 40.8 2. 1 1.18 2.3 . 80 60.3 1.8 .68 3.9 .93 1 ID 0 L567 L575 38.8 o 1 .05 3.7 1.27 57.9 -1. 1 -.43 4.9 1. 15 1 ID 0 L575

L581 39.3 .7 .37 2.6 .90 55.4 -3.6 -1.37 5.2 1.23 1 ID 0 L5 61 L599 40. 2 1.5 .85 3. 8 1.31 59.5 .4 . 16 5. 8 1.37 1 1C 0 L599

L604 35.3 -3.3 -1.85 2.0 .70 56.2 -2.8 -1.07 4. 1 .97 1 1C 0 L604

L62 2 36.5 -2. 1 -1.18 3.2 1.12 53.6 -5.4 -2. 04 4.9 1. 15 1 IE 0 L6 22 L65 0 36.0, -2.6 -1.46 3.5 1.21 55.7 -3.4 - 1.27 4.2 1.00 1 ID 0 L6 50 L651 4 0© 4 1.7 .96 4.3 1. 49 58.0 -1.0 -.39 5.5 1.30 1 ID 0 L651 L68 0 36.9 -1.8 -1.00 2.4 .84 59.9 .9 .34 4.3 1.02 1 ID 0 L6 80

GR. MEAN 38.7 PSI GRAND MEAN - 59.0 PSI TEST DETERMINATIONS - 15 SD MEANS • 1.8 PSI SD OF MEANS - 2.6 PSI 39 LABS IN GRAND MEANS

AVERAGE SDS - 2.9 PSI AVERAGE SDR - 4. 2 PSI

GR. MEAN 266.6 KIL6PASCAL GRAND MEAN * 407.0 KIL0PASCAL

L24 2 42.4 3.7 2.07 2.7 .93 61.0 2.0 .76 5.3 1.26 1 IT L242 L250L 36.6 -2. 1 -1. 15 2.0 .69 55. 1 -3.9 -1.49 4.2 .99 1 IN L250L

L29 0 47.6 8.9 4.95 2.9 1. 02 64. e 5.8 2. 18 3. 8 .89 1 1A L290

L393 38.5 -. 1 -• C7 3.5 1.21 59.0 -.0 -.01 4.0 .95 1 1H L393

L394 50.3 11.6 6.43 1.4 .50 65. 8 6.8 2.56 2.5 .60 1 1H L394 L57 0 39.7 1. 1 .59 2.1 .71 59.5 .4 . 16 3.5 .83 1 1H L570

L576 39.6 1. 1 .63 2.3 .80 61.7 2.7 1.01 4.7 1.10 IIP L576

L593 41.1 2f* 1.33 3.8 1.31 65.3 6.2 2.35 6.7 1.59 1 1J L593 TOTAL NUMBER OF LABORATORIES REPORTING - 40

Best values: B56 K30

3 psl

4 psl

11
F

0

0

000

0

0

0

6

00

006

0

0

00

0

0

0

000

0

0

6

6

00

0

X000

0

0

0

0

0

N0. 59S TAPPI C0LLAB0RATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS Til-1 TABLE 2 BURSTING STRENGTB. HIGH RANGE, PSI TAPPI STANDARD 1403 0S-76, BURSTING STRENGTH 0F PAPER - PERKINS MODEL C 08 C-A COORDINATES AVG

B56 K30 MA JO R MINOR B 0 SDR VAR PROPERTY TEST INSTRUMENT- --CONDITIONS

35.3 56.2 -4.1 1.5 . 84 1 1C BURSTING STRENGTH 40 too PSI, PERKINS C, MANUAL CLAMP

35. 6 57. 1 -3.2 1.7 1.36 11 Y BURSTING STRENGTH 40 - too PSI, PERKINS CA, AIR CLAMP

35. 8 56.0 -4.0 1.0 .99 1 ID BURSTING STRENGTH 40 • 100 PSI, PERKINS CA, AIR CLAMP

35. 9 56.5 -3.6 1.2 1.01 1 IF BURSTING STRENGTH 40 - 100 psi,:PERKINS C:, H. CLAMP, TRANSDUCER

36.0 55.7 -4.2 .6 1. 1 1 1 ID BURSTING STRENGTH 40 - 100 PSI . PERKINS CA, AIR CLAMP

36.5 58.2 -1.8 1.5 1.34 1 IE BURSTING STRENGTH 40 - 100 PSI , PERKINS C, MANUAL CLAMP

36. 5 53.6 -5.7 -.8 1.14 1 IE BURSTING STRENGTH 40 - too PSI, PERKINS C, MANUAL CLAMP

36.6 55. 1 -4.4 1 .84 1 1 N BURSTING STRENGTH 40 - 100 PSI. LHOMARGY, MAN. CLAMP, 20C.65SRH

36o 7 55.9 -3.7 . 1 1.09 1 1C BURSTING STRENGTH 40 - 100 PSI. PERKINS C. MANUAL CLAMP

36.9 59.9 -.1 2.0 .93 1 ID BURSTING STRENGTH 40 - 100 PSI, PERKINS CA, AIR CLAMP

37.3 62.6 2.5 2.9 .79 11C BURSTING STRENGTH 40 - 100 PSI. PERKINS C, MANUAL CLAMP

37. 9 56.2 -3.1 -.3 1.34 1 1C BURSTING STRENGTH 40 - 100 PSI , PERKINS C, MANUAL CLAMP

37.8 60. 1 .5 1.3 .91 11 D BURSTING STRENGTH 40 - 100 PSI , PERKINS CA, AIR CLAMP

37.9 57.5 -1.7 1 1. 23 1 1C BURSTING STRENGTH 40 - 100 PSI, PERKINS C, MANUAL CLAMP

38.2 60. e 1.3 1.3 1.44 1 1C BURSTING STRENGTH 4© - 100 PSI. PERKINS C, MANUAL CLAMP

38.3 58.0 -1. 1 -.2 1.04 1 1G BURSTING STRENGTH 40 - 100 PSI, PERKINS C, W. CLAMP. TRANSDUCER

38.4 60.2 .8 .8 .49 1 ID BURSTING STRENGTH 40 • 100 PSI, PERKINS CA, AIR CLAMP

38.4 55.9 -2.9 -1.3 .76 11C BURSTING STRENGTH 40 • 100 PSI. PERKINS C, MANUAL CLAMP

38.4 58.2 -.9 -.2 .92 UC BURSTING STRENGTH 40 • 100 PSI. PERKINS C. MANUAL CLAMP

38. 5 59.0 -.1 * 1 1.08 1 1H BURSTING STRENGTH 40 - 100 PSI, PERKINS AH, HYDRAULIC CLAMP

38.8 57.9 -1.0 -.6 1.21 l ID BURSTING STRENGTH 40 . 100 PSI, PERKINS CA, AIR CLAMP

38.8 57.5 -1.3 -.9 .92 UC BURSTING STRENGTH 40 - 100 PSI , PERKINS C, MANUAL CLAMP

38.9 60.9 1.8 . 8 1.39 I1D BURSTING STRENGTH 40 - 100 PSI, PERKIN3 CA, AIR CLAMP

39,0 59.4 • 5 *• i .44 1 1C BURSTING STRENGTH 40 - 100 PSI , PERKINS C, MANUAL CLAMP

39.0 63.4 4.0 1.8 .62 1 1C BURSTING STRENGTH 40 • 100 PSI. PERKINS C, MANUAL CLAMP

39. 1 58.9 . 1 -.5 1.23 1 1C BURSTING STRENGTH 40 • 100 PSI. PERKINS C, MANUAL CLAMP

39. 3 55.4 -2.8 -2.4 1.06 1 ID BURSTING STRENGTH 40 - 100 PSI, PERKINS CA, AIR CLAMP

39. 4 56. 8 -1.5 -1.8 .57 1 1 D BURSTING STRENGTH 40 - 100 PSI. PERKINS CA, AIR CLAMP

39.5 58,3 -.2 -1.0 .93 1 ID BURSTING STRENGTH 40 - 100 PSI, PERKINS CA, AIR CLAMP

39.7 59.5 .9 -.7 .77 1 1 H BURSTING STRENGTH 40 - 100 PSI, PERKINS AH, HYDRAULIC CLAMP

39.7 62.2 3.3 .6 l.«9 1 1C BURSTING STRENGTH 40 - 100 PSI. PERKINS C. MANUAL CLAMP

39.8 61.7 2.9 .3 .95 1 IP BURSTING STRENGTH 40 - too PSI, PERKINS LC, MANUAL CLAMP

39.9 59.9 1.4 -.6 1.20 1 ID BURSTING STRENGTH 40 - 100 PSI. PERKINS CA. AIR CLAMP

40.2 59.5 1.1 -1.1 1.34 1 1C BURSTING STRENGTH 40 - 100 PSI, PERKINS C, MANUAL CLAMP

40.3 61.1 2.6 -. 5 .52 1 ID BURSTING STRENGTH 40 - 100 PSI

,

PERKINS CA, AIR CLAMP

40.3 52.2 -5. 1 -4.8 1.51 lie BURSTING STRENGTH 40 - 100 PSI, PERKINS C, MANUAL CLAMP

40. 4 58.0 -. 1 -2.0 1.40 1 ID BURSTING STRENGTH 40 - 100 PSI, PERKINS CA, AIR CLAMP

40.8 60.6 2.6 -1.0 .87 UD BURSTING STRENGTH 40 - 100 PSI . PERKINS CA, AIR CLAMP

40. 9 65.0 6.3 .9 .85 1 ID BURSTING STRENGTH 40 - 100 PSI, PERKINS CA. AIR CLAMP

41.0 60.4 2.3 -1.4 .95 1 ID BURSTING STRENGTH 40 - 100 PSI, PERKINS CA, AIR CLAMP

41.0 60.8 2.7 -1.2 . 88 1 1C BURSTING STRENGTH 40 - 100 PSI, PERKINS C, MANUAL CLAMP

41.0 61.7 3.5 -.8 .89 1 ID BURSTING STRENGTH 40 - 100 PSI, PERKINS CA, AIR CLAMP

41. 1 65.3 6.6 1.0 1.45 1 1 J BURSTING STRENGTH 40 - 100 PSI. PERKINS JUMBO, HAND DRIVEN

41.7 61.6 3.8 -1.4 .54 1 1C BURSTING STRENGTH 40 - 100 PSI, PERKINS C, MANUAL CLAMP

41.8 64.2 6.1 -.2 .97 1 ID BURSTING STRENGTH 40 - 100 PSI. PERKINS CA. AIR CLAMP

42.4 61.0 3.6 -2.3 1. 10 1 IT BURSTING STRENGTH 40 - 100 PSI. L*W # MANUAL CLAMP

47. 6 64.8 9.4 -5.0 .96 1 1 A BURSTING STRENGTH 40 - 100 PSI , PERKINS A, MANUAL CLAMP

50.3 65.8 11.6 -6. 8 .55 1 IH BURSTING STRENGTH 40 - 100 PSI. PERKINS AH, HYDRAULIC CLAMP

38.7 59.0 1.00 95% ELLIPSE: 7.6 3. 2 SITH GAMMA - 60 DEGREES

12
KIL0PRSCRL

340

360

380

40D

420

440

460

480

BURSTING STRENGTH, HIGH RRNGE

- CO

Q_

SAMPLE B56 = 38-7 PSI SAMPLE K30 = 59.0 PSI

SAMPLE 856 = 267 KIL0PASCAL SAMPLE K30 = 407 KILOPASCAL

PSI

200 220 240 260 280 300 320

KIL0PRSCRL

13
REPORT N«1. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 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 HEAI SET OFFSET BOOK SAMPLE PRINTING TEST D#

1 15 LAB B96 91 GRAMS PER SQUARE METER GO 1 116 GRAMS PER SQUARE METBR CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

L100 47,4 .3 .11 .6 .39 86.9 1.5 .36 1.2 .44 15M 0 LlOf

LI 03 46.9 -.2 -.07 1.0 .60 84.9 -.5 -.11 2.0 .71 1ST 0 Ll 03

LI 05 47.8 .7 .27 1.3 .82 87.9 2.5 .59 2.0 .74 15T 0 Ll 05

LI 07 48.3 1.2 .46 2.4 1.48 91.7 6.4 1.50 3.2 1. 17 1ST e L107

LI 1 5 45. 1 -2.0 -.82 1.8 1. 12 81.9 -3. 5 -. 82 2.7 .97 15C e Ll 15

li i a 46. 1 -1.0 -.42 1.2 .76 84.4 -.9 -.22 2. 3 .85 1ST G Ll 18 Ll 2 1 43.7 -3.4 -1.39 1.5 .93 82. 1 -3.3 -.77 2.0 .72 1 5T G Ll 2

1

LL 22 41.5 -5.6 -2.25 1.0 .64 79.7 -5.6 -1.31 2.7 .98 15C 0 Ll 22

Ll 24 46.7 -© 4 -.15 1.7 1.07 85.5 . 1 .03 2.6 .93 15T 0 Ll 24

Ll 28 46. 8 -.3 -.13 1.4 • 66 87.0 1.7 .39 1.9 .68 15T 0 Ll 28

Ll 3 1 50.9 3.8 1.54 2.0 1.23 86.9 1.6 .37 2. a 1.03 15A 0 L13I

Ll 34 52.6 5.5 2.21 1.4 .84 93.2 7.9 1.85 2.4 . 86 15C 0 Ll 34

Ll 39 48.3 1.2 .49 1.6 .99 84.4 -.9 -.22 1.7 .63 1ST 0 Ll 39 L14 1 46. 4 -.7 -.29 1.4 . 84 82.3 -3. 0 -.71 3. 5 1. 29 15T 0 L 1 41

Ll 43 45. 5 -1.6 -.66 3. 5 2. 16 81.5 -3. 8 -. 89 3.5 1.29 15T 0 Ll 43

Ll 45 9.9 -37. 2 - 14.96 .3 . 16 20.0 -65.3 - 15. 35 .5 .20 1ST * Ll 45

Ll 4 8 50.4 3.3 1.32 1.4 .84 89.5 4. 1 .97 1.8 .64 1ST 0 L148

Ll 50 44.7 -2.4 -.99 1.0 .61 83.5 -1.8 -.43 2.4 .89 15T 0 Ll 50

Ll 5 1 63.8 16.7 6.71 2. 1 1. 29 103. 1 17. 8 4. 18 2. 1 .77 15C X Ll 51

Ll 53 47. 1 -.0 -.02 1.2 .72 88. 1 2.8 .66 3.0 1. 1 1 15C 0 Ll 53

Ll 57 44.7 -2.4 -.96 1.4 .90 83.9 -1.5 -.35 2.9 1.06 1ST 0 L 1 57 L156 47.5 .4 . 14 2.2 1.37 82.9 -2.4 -.57 4. 1 1.51 15T 0 L158

Ll 59 49.5 2.4 .96 2.7 1.66 79.3 -6. 0 -1.42 2.7 .99 15L * Ll 59 L162 47. 1 -.0 -.02 1.3 . 80 88. 1 2.8 .66 3.0 1.08 1ST 0 L162 L163 44. 4 -2.7 -1.09 1.5 .91 82.7 -2.7 -.63 3.6 1.32 15T 0 L163

Ll 66 46. 1 -1.0 -.42 1. 1 .69 85.7 .4 . 09 2.0 .72 1ST 0 Ll 66

Ll 67 49.7 2.6 1.05 2.0 1. 23 89.7 4.4 1. 03 2. 3 .82 1 SC 0 LI67

Ll 70 45.9 -1.2 -.50 1.0 .62 76.9 -6.4 - 1. 51 1.0 .38 15T 0 Ll 70 L173B 48.5 1.4 .54 1.1 .66 86.9 1.5 . 36 2.0 .71 1ST 0 L173B

Ll 76 47.2 . 1 .03 1.3 .79 89. 1 3.7 . 88 2.9 1. 06 1 5T 0 Ll 76 L182A 48.9 1. 8 .70 2.4 lo 47 80.2 -5. 1 -1.21 5.6 2.05 1 5A 0 Ll 82A

Ll 82T 50. 3 3.2 1.29 1.4 . 87 90.2 4.9 1. 14 3. 1 1. 1 1 15T 0 Ll 82T

Ll 83 46.2 -.9 -.37 1.3 .82 87.2 1.9 .44 2.9 1.04 1ST 0 L 1 83

Ll 8 5 46. 4 -.7 -.29 .6 .39 84.9 -.4 -. 10 2.7 .99 1ST 0 L 1 85

Ll 89 47. 1 .0 .01 1.3 .81 89.0 3.7 .86 2.5 .91 1ST 0 L 1 89

L19 0C 46. 7 4 -. 18 1. 2 .73 81.7 -3.7 -. 86 2.7 .97 1ST 0 Ll 90C

Ll 9 1 46.3 -.8 -.34 2.0 1.23 82. 1 -3.2 -.75 3.2 1. 19 1ST 0 L191 L195 43.6 -3.5 -1.41 1.7 1.07 85.6 .3 • 06 2.6 .96 ISC 0 Ll 95 L2C6 47.3 .2 .09 1.3 .80 87.3 1.9 .45 3. 1 1. 12 1ST 0 L206

L207 49.6 2.5 1.02 1.5 .92 86.9 1.6 .37 2.2 .80 15R 0 L207

L21 1 46. 1 -1.0 -.40 2.2 1.35 81.2 -4. 1 -.97 1.9 .68 15R 0 L21

1

L21 2 46. 8 -.3 -. 13 1.8 1. 1 1 87.7 2.4 .56 5.3 1.95 1 5T 0 L212 L213 49.7 2.6 1.05 1.5 .93 80.5 -4.8 -1. 13 2. 1 .75 15T 0 L2I3

L217 48.4 1.3 .53 3. 1 1.90 87.5 2.2 .51 4.7 1.71 1ST 0 L217 L223 48.6 1.5 .61 1. 1 .67 88.0 2.7 .63 2.4 .87 1SR 0 L223

L226C 45.6 -1.5 -.61 2.3 1. 44 84.3 -1.0 -.23 2. 1 .78 1ST 0 L2 26C L228 45,6 -1.5 -.61 2.2 1.35 81.8 -3. 5 -.83 2.7 .98 15T 0 L228

L230 43.6 -3.5 -1.41 1.3 . 83 80.6 -4.8 -1. 12 4. 1 1.49 1 5R 0 L230 L232 46.0 -1. 1 -.45 2.0 1. 25 86.0 .7 . 15 2. 1 .78 1ST 0 L232

L233 46.7 -.4 -. 15 1.2 .72 87.3 2.0 .47 2. C .74 15T 0 L233 L236 50.9 3. 8 1.51 1.6 .97 88.7 3.3 .78 4.4 1.61 1ST 0 L236

L237A 46.3 -.8 -.32 1.0 .61 86.2 .9 .20 1.5 .54 1ST 0 L237A

L237B 48. 1 1.0 .41 1.2 .74 89.9 4.5 1. 06 1.6 .57 15T 0 L237B

L238A 44.5 -2.6 -1.04 1.5 .91 82. 1 -3.2 -.75 2.7 .97 15T 0 L238A

L241 46. 8 -.3 -. 13 .9 .59 90.7 5. 3 1. 25 1.2 .45 1ST 0 L24I L242 48. 2 1. 1 .44 1.4 . 88 88.3 2.9 .69 1.8 .67 1 5U 0 L242

L243 47. 1 -.0 -.02 1.8 1.09 85. 1 -. 2 -. 05 2.9 1.04 15T 0 L243

L244 47 0 9 .8 .33 1.8 1. 09 91.1 5.7 1.35 1.9 .68 15C 0 L244 L248 49.2 2.0 .82 1.2 .73 86.7 1.4 .32 2.3 . 86 153 0 L248

L249 46.7 -.4 -.18 3. 1 1.92 80.7 -4.7 - 1. 10 4.0 1.47 1ST 0 L249 L254 47. 1 -.0 -.02 1.3 . 80 89. 1 3.7 . 88 3. 8 1.38 15T 0 L254

L255 46.5 -.6 -.23 .7 .46 83. 1 -2. 2 -.52 2.4 .86 1ST 0 L255 L257A 48.3 1.2 .46 1.3 . 80 78.9 -6. 4 -1.51 2.4 .87 15C 0 L257A L257B 48.7 1.6 .62 1.6 1.02 78. 7 -6.7 -1.57 2.5 .90 15C • L257B

L257C 47.6 .5 . 19 1.5 .97 79.1 -6.3 - 1.47 2.4 .87 15C 0 L257C

14
REPORT NO. 59

S

APRIL 1979

LAB CODE

L259

L261

L26 2 L264

L26 8 L273

L275

L277

L278 L279

L2 8 0 L28 1 L285

L288

L290

L291 L299

L303

L305

L309

L31 1 L312

L321 L324

L328

L33 1 L334

L344 L345

L352

L35 8 L360

L372 L376

L382 L368

L390 L396M

L44 2 L554

L557

L558

L559

L562

L565

L566

L567 L574

L575 L576

L580

L581 L596 L597

L599

L600

L6 04 L606

L6 1 8 L622

L6 26

L651 L652

L654

L670

TAPP I COLLABORATIVE REFERENCE PROGRAM 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 HEAT SET OFFSET BOOK SAMPLE

B96 91 GRAMS PER SQUARE METER GO 1 MEAN DEV N. DEV SDR R. SDR MEAN

51.7 4.6 1.86 2.2 1.34 78.8

45.0 -2. 1 -.85 1.2 .74 83.2 46.5 -.6 -.23 1.5 .94 87.0 47.2 c 1 .03 2.7 1. 69 81.3 44.7 -2.4 -.99 1.4 .90 84.5

50.8 3.7 1.48 2.9 1.81 91.3

49.3 2.2 .86 1.5 .93 92.4 40.7 -6.4 -2.59 1.2 .77 74.5 48.0 .9 .36 1.3 . 82 86.8 48.6 1.5 .60 2. 1 1.31 86.7

46. 4 -.7 -.29 1.4 .84 81.4

45.6 -1.5 -.61 1.1 .66 89.0 39.3 -7.8 -3.13 2.4 1. 46 77. 1 48.7 1.6 .65 1.8 1. 14 87.2 49.2 2. 1 .64 2.2 1.38 86.7

50.0 2.9 1. 16 1.6 1.03 90.4 46.5 -.6 -.23 1.4 . 88 86.7 48.4 1.3 .52 2.0 1.24 87.3 47.2 . 1 .03 1.3 .79 95.5

48.3 1.2 .46 1.7 1.04 86.3 45.3 -1.8 -.74 1.7 1.07 84.5

48.4 1.3 .52 3.4 2. 12 79.2 49.2 2. 1 .84 6.5 4.06 93.6 46.7 -.4 -.15 1.3 . 80 81.7

46.2 -.5 -.37 2.2 1.36 85.4 43.6 -3.5 -1.41 2.5 1.56 80.3 43.7 -3.4 -1.36 1.6 .98 80.8

69. 1 22. 0 8.83 7.0 4.34 111.9 49.0 1.9 .76 1.3 .82 89. 1 52.0 4.9 1.96 1.2 .73 95.8 54.9 7.8 3. 12 2.0 1. 22 95.8

46. 8 -.3 -.11 .8 .52 83.9

47.2 .0 .01 .6 .40 82.3 45.7 -1.4 -.58 1.8 1. 10 85. 1 51.4 4.3 1.72 1.6 1.02 92.7

SI. 5 4.4 1.78 2.3 1.41 72.3

52. 1 5.0 2.02 2. 1 1. 29 96.5 49.5 2.4 .95 1.3 .81 82.8 49.3 2.2 .86 1.9 1.21 87.2 61.0 13. 9 5.58 2.5 1. 56 88.2 43.5 -3.6 -1.47 1.4 . 88 84.9 43.0 -4. 1 -1.66 1.0 .62 80. 1 43.9 -3.2 -1.28 1.0 .60 86.7 42.5 -4.6 -1.84 1.2 .74 80.8

44. 1 -3.0 -1.20 1.4 . 85 78.7

45.0 -2. 1 -.85 1. 1 .67 77.6

46.4 -.7 -.29 1.5 .97 85.5 47.2 . 1 .03 2.0 1.23 82.4 47.3 .2 .08 .9 . 59 85. 1 53.2 6. 1 2.45 2.7 1.69 93.9 46.7 -.4 -.18 1.2 .73 85.7 46.4 -.7 -.28 1.6 1. 02 85.7

1 1. 8 -35.3 -14.21 1.4 . 86 21.3

46. 1 -1.0 -.40 1.4 . 88 84.3 46.7 -.4 -.15 1.6 1.01 89.0 49.9 2.8 1.1 1 1.4 . 85 87.3

5 0.9 3. 8 1.54 2.6 1.62 820 1 47.7 .6 .22 1.3 . 80 86. 8 46. 8 -.3 -. 13 1.7 1.03 84.4 70.5 23.4 9.42 3. 1 1.91 95. 1

50. 1 3. 0 1.19 1.4 .90 84.3

46. 4 -.7 -.29 1.4 .84 76.3 47.7 .6 .25 2.9 1.79 87.7 43.6 -3.5 -1.41 1.5 .96 80. 5 49.0 1.9 .76 1.3 .78 73.5

PRINTING TEST D. - IS 116 GRAMS PER SQUARE METER

DEV N. DEV SDR R. SDR VAR F LAB

-6.5 -1.54 3.5 1. 29 1ST X L259

-2. 1 -.50 1.9 .68 15T 0 L261

1.7 .39 2.5 .90 15T 0 L262

-4.0 -.94 2.9 1. 06 15T 0 L264

-.6 -. 19 2.9 1.05 15T 0 L268

6. 0 1.41 2.7 .98 15T 0 L273

7.1 1.66 3.0 1.08 15T 0 L275

-10.8 -2. 54 3.7 1.36 15T * L277

1.5 .34 2.8 1.02 15T 0 L278

1.4 . 33 3.0 1.10 15T 0 L279

-3.9 —c 93 2. 4 . 88 1 5L 0 L2 80 3.7 . 86 2.4 .89 1ST 0 L281 -8.3 - 1.94 3. 1 1. 13 15T * L285

1.9 .44 3.4 1.26 1ST 0 L288

1.4 .33 2.4 .87 15T 0 L290

5. 1 1. 19 2.7 .98 15A 0 L291

1.3 .31 4. 1 1.50 15T 0 L299

2. 0 .47 2.6 .96 15L 6 L303

10. 1 2.38 1.8 .64 1ST * L305

.9 .22 2.7 .99 15T 0 L309

-.8 -. 19 3. 8 1.39 15T 0 L311

-6. 1 -1.44 3. 1 1. 13 15T 0 L312

8.3 1.94 15. 3 5.58 15T 0 L321 -3.6 -. 85 1.8 .65 15T 0 L324

. 1 c 01 2.2 . 80 15T 0 L3 28

-5. 1 -1. 19 2.3 .83 1 5T 0 L331 -4.5 - 1. 07 2.7 1.00 15T 0 L334

26. 5 6.23 4.0 1.47 15C * L344

3. 8 .89 2.7 1.00 15T 0 L345

10.5 2. 47 2.3 .82 15C * L352

10.5 2.46 1.8 .66 1ST «• L358

-1.4 -.33 2.7 .97 15T 0 L360

-3.0 -.71 1. 1 .41 15T 0 L372

-.3 -, 06 2. 1 .77 15T 0 L376

7.3 1.72 4. 8 1.75 1 5T 0 L382

-13.0 -3o 06 2.5 .91 1ST X L388

11.1 2.61 3. 1 1. 13 15T * L390

-2.5 -.60 2.5 .90 15T 0 L396M

1.9 .44 2.8 1.01 15R 0 L4 42 2.9 .67 6.0 2. 19 15C X L554

-.4 -o 10 3.0 1. 10 15T 0 L557

-5.3 -1.24 2.4 .89 15T 0 L558

1.3 .31 1.6 .58 1 5T 0 L559

-4.5 -1.07 3.6 1.32 15T 0 L562

-6.7 -1.57 2.0 .71 1ST 0 L565

-7.7 -1. 82 2. 0 .74 1 5T 0 L566

.1 . 03 2.6 o 93 15C 0 L567

-2.9 -.69 2.4 . 88 15T 0 L574

-.2 -.05 1.3 .49 15L 0 L5 75

8. 5 2. 00 2.5 .91 15T -» L576

.4 .09 1.3 .49 1 5T 0 L580

.4 . 09 4.4 1.61 15Q 0 L581

-64. 1 -15.06 1.4 .52 15T * L596

-1. 1 -.25 2.4 .87 15T 0 L597

3.7 . 86 3.3 1. 19 15T 0 L5 99

2.0 .47 2. 7 .98 1ST 0 L600

-3.2 -.75 3. 1 1.12 1ST « L604

1.5 .34 2.2 .82 15T 0 L606

-.9 -.22 2.4 .88 1ST 0 L618

9.8 2.30 6.7 2.43 15T ft L622

-1.0 -.24 3. 0 1.08 15L 0 L626

-9. 1 -2. 13 2.5 .91 15T * L651

2.4 .56 3. 8 1.40 15C ft L652

-4.8 -1.13 2.4 . 88 1 5T 0 L6 54

-1 1. 8 -2.77 1.8 .64 15T X L6 70 15
REPORT NO. 59 S TAPPI COLLABORATIVE REFERENCE PROCRAB APRIL 1979 ANALYSIS T15-1 TABLE 1 TEARING STRENGTH, CRABS

TAPPI STANDARD T414 T9-65, ANY MAKE ELMENDORF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

SABPLE HEAT SET OFFSET BOOK SABPLE PRINTING TEST D. • 15 LAB B96 91 GRAMS PER SQUARE METER

CODE MEAN DEV N. DEV SDR R. SDR L676 46.4 -.7 -.29 1.7 1. 05 L679 48.9 1.8 .73 1.2 .76

L68 0 45.9 -1.2 -.50 1.6 1.00 L684 45. 1 •2.0 -.82 1.0 .64

L6 65 50.0 2.9 I. 16 1.5 .94 L692 48.5 1.4 .57 2.4 1.49 L696 44.9 -2.2 -.88 2.3 1. 40

L69 8 42. 2 -4.9 -1.98 l.a 1. 13

GR. MEAN * 47. 1 GRAMS GRAND BEAN

SD MEANS • 2.5 GRAMS SD OF MEANS AVERAGE SDR • 1.6 GRAMS

GR. MEAN * 462.1 MILLINEHTON GRAND MEAN

Lt 26 46.7 -.4 -.18 1.6 .99

L225 49.7 2.6 1 o 05 1.7 1. 04 L226B 49. 1 2.0 .81 1.4 .85

L250L 55. 8 8.7 3.49 lo 6 1.00

LAI 0 63.9 16. 8 6.74 19.9 12. 42

L66 6 50.9 3. 8 1.54 2.6 1.62 L697 44. 2 -2.9 -1.17 1.3 .82 TOTAL NUMBER OF LABORATORIES REPORTING • 145

Best values: B96 47+4 grams

G01 85+7 grams

The following laboratories were omitted from the grand means because of extreme test results: 344,

622.

G01 1 16 GRAMS PER SQUARE METER

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

81.5 -3. 8 -.89 2.5 .90 1ST O L676

87.4 2. 1 .48 2. 4 .89 15T 0 L679

85. 1 -.3 -.06 2.6 .95 1ST 0 L6 90 86.9 1.6 .37 1.3 .47 1 SL 0 L684

86. 1 .8 .19 2.2 .80 1 ST 0 L685

85.4 . 1 .01 2.5 .91 1 5T 0 L692

85.6 .3 .06 2.5 .92 1ST 0 L696

84.4 -.9 -.22 2.7 .98 15L 0 L698

85.3 GRAMS TEST DETERMINATIONS • 15 4.3 GRAMS 128 LABS IN GRAND MEANS AVERAGE SDR - 2.7 GRAMS

836.9 MILLINEWTON

88.9 3.5 . 83 2. 7 .97 1SV LI 26 90.9 5. 6 1.31 2.3 .82 1 5 V L225

88.6 3.3 .77 3.1 1.14 1 5V L226B

93.0 7.7 1. 80 2.4 .88 15H L250L

66.3 -19.1 4.4 8 21.9 7.97 I5E L6 10

92. 1 6. 8 1.60 3.0 1.08 15V L688

86.3 1.0 .24 3.0 1.09 15X L6 97

FU.«. ••• th« dUgrM on 4h« inaid* <of tha back covar of this report ohlch shoos

how to dlotlotuloh batvaan an Blaondorf

taar taatar aith DEEP CUTOUT and an oldar

taatar aith MO CUTOUTo

Data from the following laboratories appear to be

off by a multiplicative factor: 145, 596. Data from the following laboratories were omitted

from the grand means because the tests were

performed in ambient conditions: 652. Data from the following laboratories appeared

to be off by a multiplicative factor: 126,

225, 226B, 688. Code 15V was assigned temporarily

to put in a factor of 2.

16
F

**

*

*•0

0

0

0

00

000

0

0

0

0

0

0

0

00

00

0

0

0

0

0

0

00

0

0

0

00

0

0

0

00

0

0

0

*0

000

0

0

0

0

0

000

0

0

00

0

NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T15-1 TABLE 2 TEARING STRENGTH, GRAMS

TAPPI STANDARD T414 TS-65, ANY MAKE BLMEND0RF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

MEANS COORDINATES AVG

B96 GO 1 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT- --CONDITIONS

9.9 20.0 -74. 8 7.8 .18 15T TEARING STRENGTH. STANDARD, THWING-ELMENDOBFC SCALE TO 100 ) 11.8 21.3 -72.9 6.6 .69 1ST TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) 39o 3 77. 1 -10.7 3. 8 1.30 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RP( SCALE T0 100 ) 40. 7 74.5 -12.5 1.6 1.07 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 ) 41. 5 79.7 -7.4 2.9 .81 15C TEARING STRENGTH, STANDARD, THWING—ELMEND0RF ( W,, AIR CLAMP

)

42.2 84.4 -2.8 4. 1 1.06 15L TEARING STRENGTH, STANDARD, L0RENTZ-WETTRES

42. 5 80. 8 -6. 0 2.4 1.03 1ST TEARING STRENGTH, STANDARD, THWING- ELMEND0RF< SCALE TO 100 ) 43. 0 80. 1 -6.5 1.7 .76 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) 43. 5 84.9 -1.8 3.2 .99 1ST TEARING STRENGTH, STANDARD, THWING- ELMEND0RF< SCALE TO 100 > 43.6 80.5 -5.8 1.3 .92 15T TEARING STRENGTH, STANDARD, THWING- ELMENDORF( SCALE TO 100 ) 43.6 80.3 -6. 1 1.2 1.20 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF< SCALE T0 100 ) 43.6 85.6 -1.2 3.3 1.02 15C TEARING STRENGTH, STANDARD, THWI NG-ELMEND0RF ( W a, AIR CLAMP ) 43.6 80.6 -5. 8 1.3 1. 16 15R TEARING STRENGTH, STANDARD, THWI NG- EL MEN DORP, DIGITAL READOUT

43.7 82. 1 -4.4 1.8 .83 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORF( SCALE TO ICO ) 43. 7 80.8 -5.5 1.3 .99 15T TEARING STRENGTH, STANDARD, THWING- ELMENDORF! SCALE TO 100 ) 43.9 66.7 -. 1 3.4 .59 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 44. 1 78.7 -7.3 o 1 .78 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 ) 44. 2 86.3 -.2 3. 1 .95 15X TEARING STRENGTH, STANDARD: GIVE INSTRUMENT MAKE, MODEL

44.4 82.7 -3.5 1.4 1. 1 1 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE T0 100 ) 44. 5 82. 1 -4.0 1. 1 .94 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) 44.7 83.5 -2.6 1.5 .75 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T0 100 ) 44. 7 84.5 -1.7 1.9 .98 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF< SCALE TO 100 ) 44.7 83.9 -2.3 1.6 .98 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO ICO ) 44.9 85.6 -.6 2. 1 1. 16 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) 45.0 77.6 -7.9 -1.2 .70 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 45.0 83.2 -2.8 1. 1 .71 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) 45. 1 86.9 .6 2.5 . 56 15L TEARING STRENGTH, STANDARD, L0RENTZ-WETTRES

45. 1 81.9 -4.0 .5 1. 05 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF < W., AIR CLAMP ) 45. 3 84.5 -1.5 1.4 1.23 15T TEARING STRENGTH. STANDARD, THWING-ELMENDORF( SCALE TO 100 ) 45. 5 81.5 -4.2 -. 0 1.73 15T TEARING STRENGTH. STANDARD, THWING-ELMENDORF( SCALE TO 100 ) 45.6 89.0 2.7 2.9 .78 1ST TEARING STRENGTH, STANDARD, THWING- ELMENDORF( SCALE TO ICO ) 45.6 81.8 -3.9 -.0 1. 16 1 5T TEARING STRENGTH, STANDARD, THWING-EL MEND0RF! SCALE TO 100 ) 45.6 84.3 -1.5 1.0 1. 11 15T TEARING STRENGTH, STANDARD, THWING- ELMEND0RF( SCALE TO 100 ) 45. 7 85. 1 -.8 1.2 .94 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 45.9 85. 1 -.8 1.0 .97 15T TEARING STRENGTH, STANDARD, THWING-EL 1END0RF( SCALE TO 100 )

45. 9 78.9 -6.4 -1.4 . 50 1 5T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46. 0 86. 0 .2 1.3 1.01 1ST TEARING STRENGTH, STANDARD, THWING-ELMEND0RF< SCALE TO 100 ) 46. 1 84.4 -1.3 .6 .81 1ST TEARING STRENGTH. STANDARD, THWING-ELMEND0RF< SCALE TO 100 ) 46. 1 85.7 -. 1 1. 1 .70 15T TEARING STRENGTH. STANDARD, THWING-ELMENDORF! SCALE TO IOC ) 46. 1 84.3 -1.4 .5 .87 15T TEARING STRENGTH, STANDARD, THWING- ELMEND0RF< SCALE TO 100 )

46. 1 81.2 -4.2 -.8 1.0 1 15R TEARING STRENGTH. STANDARD, THWI NG-ELMEND0RF, DIGITAL READOUT

46. 2 85.4 -.3 .9 l.C 3 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO ICO ) 46.2 87.2 1.3 1.6 .93 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) 46.3 82. 1 -3.3 -.5 1.21 15T TEARING STRENGTH, STANDARD, THWI NG- ELWEND0RF< SCALE TO 100 ) 46. 3 86. 2 .5 1. 1 .57 1ST TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) 46.4 81.5 -3. 8 -.9 .98 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFt SCALE TO 100 ) 46. 4 76.3 -8.6 -3.0 . 88 15T TEARING STRENGTH. STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46. 4 85.5 -.2 .7 .95 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF ( W. A IF CLAMP ) 46.4 82.3 -3.0 -.6 1.07 15T TEARING STRENGTH, STANDARD, THWI NG-ELMENDORF( SCALE TO 100 ) 46.4 84.9 -.7 .5 .69 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46.4 81.4 -3.9 -.9 *86 15L TEARING STRENGTH, STANDARD, L0RENTZ-WETTRES

46,4 85.7 . 1 .6 1.32 15Q TEARING STRENGTH, STANDARD, THWING-ELMENDORF .AIR CLAMP', DIGITL

46. 5 86.7 1.0 1. 1 1.19 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46. 5 87.0 1.3 1.2 .92 15T TEARING STRENGTH. STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46. 5 83. 1 -2.3 -.4 .66 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46.7 88.9 3.0 1. 8 .98 15V TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 )X2

46. 7 65.7 .2 .6 .61 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46.7 81.7 -3.5 -1. 1 . 85 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46.7 80.7 -4.5 -1.5 1.70 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46o 7 89.0 3.2 1.8 1. 10 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46.7 85.5 -.0 .4 1.00 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46. 7 87.3 1.7 1.2 .73 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46.7 81.7 -3.5 -1. 1 .73 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO ICO ) 46. a 87.0 1.4 1.0 .77 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) 46. 8 84.4 -1.0 -. 1 .96 15T TEARING STRENGTH. STANDARD, THWING-ELMENDORF! SCALE TO ICO )

17
REPORT NO* 59S TAPP I COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T15-1 TABLE 2 TEARING STRENGTH. GRAMS

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

LAB MEANS COORDINATES AVG CODE F B96 GO 1 MAJOR MINOS R. SDR VAR PROPERTY—-TEST INSTRUMENT CONDITIONS

L241 0 46* 8 90.7 4.7 2.4 .52 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFC SCALE TO 100 ) L212 0 46. 8 87.7 2.1 1.3 1.53 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100) L360 0 46. 8 83.9 - 1.4 -.3 .75 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORFC SCALE TO ICO ) L103 o 46.9 84.9 -.5 -.0 .66 1ST TEARING STRENGTH, STANDARD „ THWI NG- EL 4ENB0RF4 SCALE TO 100 ) LI 62 0 47. 1 88. 1 2.5 1.2 .94 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 ) L243 0 47.1 85. 1 -.2 -.0 1.07 15T TEARING STRENGTH, STANDARD, THWI NG-ELMBND0RF< SCALE TO 100 ) L254 0 47. 1 89. 1 3.4 1.5 1.09 15T TEARING STRENGTH, STANDARD, THWI NG- ELMENDORF! SCALE TO 100 ) LI 53 0 47. 1 88. 1 2.5 1.2 .92 15C TEARING STRENGTH, STANDARD, T HW I NG-ELMENDORF 1 W. AIR CLAMP)

LI 8 9 0 47. 1 89.0 3.4 1.5 . 86 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L372 0 47.2 82. 3 -2.7 -1.2 .40 15T TEARING STRENGTH, STANDARD, THWING- ELMENDORF! SCALE TO 100 )

L26 4 o 47. 2 81.3 -3.6 -1.7 1.37 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L57 4 6 47.2 82.4 -2.7 -1.3 1.05 1ST TEARING STRENGTH, STANDARD. THWING-ELMEND0RF! SCALE TO 100 ) LI 76 6 47.2 89. 1 3.4 1.4 .93 15T TEARING STRENGTH, STANDARD, THWING- ELMENDORF! SCALE TO 100 ) L305 » 47.2 95.5 9.3 4. 0 .72 15T TEARING STRENGTH, STANDARD, TBWING- ELMENDORF! SCALE TO 100 > L575 e 47. 3 85. 1 -.1 -.3 .54 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L206 6 47.3 87.3 1.8 .6 .96 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 > L100 0 47.4 86.9 1.5 .4 .42 15M TEARING STRENGTH, STANDARD, T. M, MIRFIELD! APPITA-ELMENDORF 1 LI 58 0 47.5 82.9 -2. 1 -1. 3 1.44 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L2S7C 0 47.6 79. 1 -5.6 -3.0 .92 ISC TEARING STRENGTH, STANDARD, THWING-ELMENDORF 1 W,.AIR! CLAMP)

L6C6 0 47.7 86.8 1.6 . 1 .81 15T TEARING STRENGTH, STANDARD. THWING-ELMENDORF! SCALE TO 100 ) L652 * 47. 7 87.7 2.4 o 4 1. 59 15C TEARING STRENGTH, STANDARD, THWI NG-ELMBND0RF 1 W, AIR! CLAMP)

L10 5 0 47. 8 87.9 2.6 .4 .78 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L244 0 47.9 91. 1 5.6 1.6 .89 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF 1 W,i AIR! CLAMP)

L27 8 0 48.0 86.8 1.7 -.2 .92 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L237B 0 48. 1 89.9 4.6 . 9 .65 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L242 o 48.2 88.3 3.1 .2 .78 15U TEARING STRENGTH, STANDARD, AUSTRALIAN OPTo CO. L257A 0 48. 3 78.9 -5.4 -3.6 .83 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF (W,, AIR! CLAMP

)

L309 0 48.3 86.3 1.3 -.7 1.01 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) LI 07 0 48.3 91.7 6.3 1.5 1.32 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) LI 39 0 48.3 84.4 -.4 -1.5 .81 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO ICO ) L303 0 4 8.4 87.3 2.3 -.4 1.10 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L312 0 48. 4 79. 2 -5. 1 -3.6 1.62 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L217 0 48.4 87.5 2.5 -.3 1. 81 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L173B O 4 8. 5 86.9 1.9 -.6 .69 15T TEARING STRENGTH, STANDARD, THWI NG-ELMEND0RF! SCALE TO 100 ) L692 0 46.5 85.4 .6 -1.3 1. 20 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L279 0 48.6 86.7 1.9 -. 8 1.20 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L223 o 48.6 88.0 3.1 -.3 .77 15R TEARING STRENGTH, STANDARD, THWING-ELMENDORF, DIGITAL READOUT

L257B • 48.7 78.7 -5.5 -4. 1 .96 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF ! W,, AIR CLAMP 1 L28 8 0 48. 7 87.2 2.4 -.7 1. 20 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L182A 0 48.9 80.2 -4. 0 -3.7 1.76 1 5A TEARING STRENGTH, STANDARD, APPITA

L679 0 48.9 67.4 2.6 -.8 .83 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L345 0 49.0 89. 1 4.2 -.2 .91 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L670 X 49.0 73.5 -10. 1 -6. 5 .71 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L22 6B 49. 1 88.6 3.8 -.5 .99 15V TEARING STRENGTH, STANDARD, THWING- ELMENDORF! SCALE TO 100 )X2 L24 8 0 49.2 86,7 2.1 -1.3 .79 15 J TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L321 0 49. 2 93.6 8.4 1.4 4. 82 1 5T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L290 0 49. 2 86.7 2.1 -1.3 1.12 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L27 5 0 49.3 92.4 7.3 « 9 1.01 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L442 0 49.3 87. 2 2.8 -1.2 1. 1

1

15R TEARING STRENGTH, STANDARD, THWING-ELMENDORF, DIGITAL READOUT

L396M 0 49.5 82.8 -1.4 -3.2 . 85 1 5T TEARING STRENGTH, STANDARD, TH* I NG- ELMEN D0RF( SCALE TO 100 )

LI 59 « 49.5 79. 3 -4.6 -4.6 1. 32 15L TEARING STRENGTH, STANDARD, L6RENTZ- WETTRES

L207 0 49.6 86.9 2.4 -1.7 . 86 15R TEARING STRENGTH, STANDARD, THWING-ELMENDORF, DIGITAL READOUT

L225 * 4 9.7 90.9 6.2 -.2 .93 15V TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T6 100 )X2 L167 0 49. 7 89.7 5. 1 -.6 1.03 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF < W, AIR: CLAMP)

L213 0 49.7 80.5 -3.4 -4. 3 .84 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T0 100 ) L600 0 49.9 87.3 2.9 -1.7 .91 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T0 100 ) L685 0 50.0 86. 1 1.9 -2.3 .87 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T0 100 ) L291 0 50. 0 90.4 5.8 -.6 1.00 15A TEARING STRENGTH, STANDARD, APPITA

L626 0 50. 1 84.3 .3 -3. 1 .99 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L182T 0 50.3 90.2 5.7 -1.0 .99 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T6 100 )

LI 48 0 50.4 89.5 5. 1 -1.3 .74 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T0 100 ) L273 0 50.8 9 1.3 7.0 -1.0 1.40 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T0 100 ) L2 36 0 50.9 88.7 4.6 -2. 1 1. 29 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T0 100 ) L66 6 50.9 92. 1 7.8 -.8 1.35 15V TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T0 100 )X2

Li 31 0 50.9 86.9 3.0 -2.9 1. 13 15A TEARING STRENGTH, STANDARD, APPITA

IS
REPORT NO. 59 S TAPP I COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T15-1 TABLE 2 TEARING STRENGTH, GRAMS

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

LAB MEANS COORDINATES AVG CODE F B96 GO 1 MAJOR MINOR R. SDR VAR PROPERTY—-TEST INSTRUMENT CONDITIONS

L604 * 50.9 82. 1 -1.4 -4.8 1.37 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 ) L382 6 51. 4 92.7 a. 4 -1.0 1.39 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO IOC ) L388 X 51. 5 72.3 -1 0. 1 -9.3 1.16 1ST TEARING STRENGTH. STANDARD, THWING- ELMENDORF! SCALE TO 100 ) L259 X 51. 7 78.8 -4.1 -6.9 1.32 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFC SCALE TO 100 ) L352 * 52.0 95.8 11.6 -.2 .78 15C TEARING STRENGTH. STANDARD, THWING-ELMENDORF (W.AIR CLAMP

)

L390 * 52e 1 96.5 12.2 -. 1 1.21 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO ICO ) L134 6 52. 6 93.2 9.4 -1.9 . 85 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF (W.AIR CLAMP

)

L576 • 53.2 93.9 10.3 -2. 1 1.30 15T TEARING STRENGTH, STANDARD, THWING- ELMENDORF! SCALE TO ICO ) L358 » 54.9 95.8 12.7 -2.9 .94 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORFl SCALE TO 100 ) L250L 55. 8 93.0 10.5 -4.9 .94 15H TEARING STRENGTH, STANDARD, LHOMARGY, 20 C, 65* RH L554 X 61.0 88.2 8.2 -11.6 1. 88 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF (W.AIR CLAMP > LI 5

1

X 63.8 103. 1 23.0 -a. i 1.03 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF (W.AIR CLAMP ) L6 1 0 63.9 66.3 -10.7 -23.0 10.20 15E TEARING STRENGTH, STANDARD, THWING-ELMBNDORF, AMBIENT COND. L344 * 69. 1 111.9 33. 1 -9.4 2.91 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF (W.AIR CLAMP

)

L622 * 7 0.5 95. 1 18.4 -17.5 2.17 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) GMEANS: 47© 1 85.3 1.00 95* ELLIPSE: 11.4 4.5 WITH GAMMA • 66 DEGREES

19
MILLINE

WT

0

N

700

750

800

850

900

950

1000

TEARING STRENGTH, DEEP CUTOUT

SAMPLE B96 =47-1 GRAMS SAMPLE G01 = 85-3 GRAMS

SAMPLE B96 = 462 M I LL I NEWTON SAMPLE G01 = 837 M I LL I NEWTON

350 400 450 500 550 600

MILLINEWT0N

20
REPORT N6. 59S TAPPI COLLABORATI VE REFERENCE PROGRAM APRIL 1979 ANALYSIS 117-1 XaBLE 1 TEARING STRENGTH, GRAMS

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

SAMPLE PRINTING

LAB K49 105 GRAMS PER SQUARE METER

CODE MEAN DEV NoDEV SDR R. SDR

L 1 22 113.7 -3.1 -.44 4. 8 . 85

LI 4 8 124. 1 7.3 1.05 4.8 .84

L23 1 119.7 2.9 .42 2.8 .49

L26 7 126.4 9.6 1.37 5.4 .95 L269 120. 8 4.0 .57 5.5 .96 L301A 111.1 -5.7 -.62 4.2 .74 L301B 109.6 -7.2 -1.03 7.5 1.31

L3 0 8 126. 8 10.0 1.43 1 0. 6 1.89 L326 110.3 -6.5 -.94 5.5 .97

L339 108.3 -8.5 -1.22 4.9 . 86

L341 122.7 5.9 .84 2.7 .47

L393 114. 1 -2.7 -.38 6.6 1.15

GR# MEAN - 116.8 GRAMS GRAND MEAN

SD MEANS - 7. 0 GRAMS SD OF MEANS

AVERAGE SDR - 5.7 GRAMS

GR 0 MEAN •1 145.5 MILLINEWTON GRAND MEAN

LI 06 130.9 14.1 2.02 4.4 • 77

L234 117.6 .6 .11 6.2 1 « 09 TOTAL NUMBER OF LABORATORIES REPORTING - 14

Best values: K49 116 grams K20 144 grams

The following laboratories were omitted from the grand means because of extreme test results: 341.

SAMPLE KRAFT TEST D. - 15 K20 123 GRAMS PER SQUARE METER

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

138.5 -4.6 -•51 7.3 1.08 17N e L 1 22 156.5 13.4 1.51 5.2 .77 17N e L 1 46

1 50.5 7.4 • 83 5.9 . 86 17N o L231

152.3 9.2 1. 03 9. 1 1.34 17N 6 L267

147.5 4.4 .49 7.8 1. 15 17N a L269

145.5 2.4 • 26 7.8 1. 15 17N o L30 1 A 139.9 -3.2 -. 36 5.0 .74 17N 6 L301B

148.4 5.3 • 59 7.5 1. 10 17N 0 L308

132.7 -10.4 1. 17 5.0 .73 17N 0 L326

131.5 -11.6 1.30 6.0 .89 17N 6 L339

180.4 37.3 4. 18 5.4 .79 17N u L341

13 0.9 -12.2 1.36 8. 1 1. 19 17N 0 L393

143.1 GRAMS TEST DETERMINATIONS - 15

8 e 9 GRAMS 1 1 LABS IN GRAND MEANS AVERAGE SDR - 6. 8 GRAMS

1403.4 MILLINEWTON

163.2 20. 1 2. 25 2*9 • 43 17V LI 06 152.3 9.2 a. 03 6. 8 1.01 17V L234

Please see tbs diagram on tbe 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 CUTOUT*

Data from the following laboratories appeared

to be off by a multiplicative factor: 106,

234. Code 17V was assigned temporarily to put in a factor of 2.

REPORT NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T17-1 TABLE 2 TEARING STRENGTH, GRAMS

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

LAB CODE F MEANS

K49 K20 COORDINATESMAJOR MINOS AVG

fi. SDR VAR PROPERTY TEST INSTRUMENT- —CONDITIONS

L339 0 108.3 131.5 -14.4 -.0 .87 17N TEARING STRENGTH, NO CUT OUT. THWI NG-ELMENDORF

L30 IB 0 109,6 139.9 -6.9 3.9 1.03 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L326 0 1 10. 3 132.7 -12.3 -.9 • 85 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L30 1A 0 11 1. 1 145.5 -1.5 6. 0 .94 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

LI 22 0 1 13.7 138.5 -5.5 -.2 .96 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L393 0 114. 1 130.9 -11.4 -5. 1 1.17 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L234 117.6 152.3 7.8 4, 8 1.05 17V TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF! MULT

L231 0 119.7 150.5 7.7 2. 1 . 68 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L269 0 12 C0 8 147.5 5.9 -.6 1. 06 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L341 * 122.7 180.4 33.5 17. 5 .63 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

LI 48 0 124. 1 156.5 15.2 2. 1 .80 17N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L267 0 126.4 152.3 13. 1 -2.3 1. 14 17N TEARING STRENGTH. NO CUT OUT, THWI NG-ELMENDORF X30 8 6 126. a 148.4 10.2 -4.9 1.49 1 7N TEARING STRENGTH. NO CUT OUT, THWING-ELMENDORF

L106 130.9 163.2 24.6 .6 .60 17V TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF! MULT GMEANS: 116.8 143.1 95* ELLIPSE: n n • OJ 10.5

1.00 WITH GAMMA • 53 DEGREES

21
MILLINE

WT0N

1150

1250

1350

1450

1550

1650

TEARING STRENGTH, N0 CUTOUT

SAMPLE K49 =117. GRAMS SAMPLE K20

SAMPLE K49 = 1146 M I LL I NEWTON SAMPLE K20

143. GRAMS

1403 MILLINEWTON

CO

z:CL

QL

CJD

o

rLDCD

o

CD

LD

LD

O

LDLD

O

LDCO

O

CO

LD

CO

O

CO -

Q +.X.# NOT IN GRAND MEANS

CM^ ANALYSIS T17-1

Q_

CL

CO

O

©

©

©

©

©

LD

©

©

©

©

©

SAMPLE K49

85 90 95 100 105 110 115 120 125 130 135 140 145 150

GRAMS

I I I I 850 900 950 1000

i i i i i i i i 1100 1200 1300 1400

MILLINEHT0N

22
REP0ET NO. 59S TAPP I COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS 119-1 TABLE 1 TENSILE BREAKING STRENGTH, KILONEWTONS PER METER - PACKAGING PAPER

TAPPI STANDARDS T404 OS-76 AND T494 OS-70. TENSILE BREAKING STRENGTH, PENDULUM AND CRE TYPES

SAMPLE PRINTING SAMPLE PRINTING TEST • • rv> o LAB J 1

6

149 GIANS PEE SQUARE METER K3 2 105 GRAMS PER SQUARE METER

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

LI 06 8.50 -.29 -.91 .33 1.02 8.29 -.51 -1.79 .47 1.03 19A 0 LI 06 H 07 .90 -7.89 -24.52 .06 .19 . 89 -7.91 -27. 84 .07 . 16 19A * LI 07

LI 2 2 8.43 -.37 -1. 14 .29 .91 8.52 -.29 -1.01 .43 .94 19A 0 LI 22

LI 26 8.49 -.30 -.93 .26 .79 e.75 -.05 -. 19 .32 .70 19A 0 LI 26 L15 1 8. 83 .03 . 10 .46 1.42 8.26 -.54 - 1.90 .23 .50 19A * LI 51

LI 5 3 9.09 . 3C .93 .33 1.00 8.98 .18 .62 .58 1.27 19P 0 LI 53 L157A 9.06 .26 .82 .32 .98 8.76 -.05 -. 16 .47 1.04 19P 0 L157A

LI 571 8.80 .00 .01 .25 .78 7.64 -1.17 -4.11 .40 .87 19A X LI 57

1

L167 9.44 .65 2.01 .28 .87 9.26 .46 1.60 .30 .66 19G 0 L167

LI 821 8.38 -.41 -1.27 .29 .89 8.57 -.23 -.81 .36 .78 19 D © LI 821 L182L 8.48 -.32 -.99 .34 1.04 8.57 -.23 -.82 .50 1.09 19T 0 L182L

L207 9.17 .37 1.16 .27 .82 8.71 -.09 -.33 .34 .74 19A 0 L207 L217P 9.09 .30 .92 .42 1. 28 8.97 .17 .59 .26 .57 19 P 0 L217P

L22 5 8.90 .10 .31 .24 .73 9. 16 .35 1.24 .36 .80 19P 0 L225

L23 4L 8.62 -.18 -.55 .25 .77 8.60 -.20 -.71 .35 .77 19P 0 L234L

L237A 8.67 -.12 -.39 .31 .96 8.96 .15 . 54 .22 .49 190 0 L237A

L237B 9.23 .43 1.35 .34 1.06 9.52 .71 2.51 .60 1.32 1 9A 0 L237B

L238A 8. 85 .06 .18 .33 1. 02 So 98 . 17 .61 .53 1.16 19T 0 L238A

L243 8.48 -.31 -.98 .22 .68 8.69 -.11 -.39 .40 .87 19A 0 L243

L257A 8.92 .13 .39 .21 .65 8.74 -.07 -. 23 .30 .65 19P 0 L257A

L257C 8.99 .20 .62 .29 .91 8.69 -. 1 1 -.39 .32 .69 19P 0 L257C

L264A 8.73 -.06 -.19 .30 .94 8.90 .10 .34 .38 .84 19 A 0 L264A

L264P 9.08 .28 .88 .33 1.02 9.09 .28 .99 .39 .87 19P 0 L264P

L26 5 8.66 -.13 -.41 .32 .99 8.71 -.09 -.33 .56 1.23 1 9A 0 L265

L267 8.47 -.33 -1.02 .36 1 . 10 8.77 -.04 -. 13 .39 .86 19A 0 L267

L26 8A 9.45 .66 2.04 .33 1.00 9.34 .54 1.89 .58 1.26 19A 0 L268A

L26 8P 9.04 .25 .76 .22 .67 9.02 .22 .77 .63 1.38 19P 0 L268P

L273 8.75 -.04 -.13 .27 .82 8.78 -.02 -.07 .52 1. 14 19P 0 L273

L2 80 8.25 -.54 -1.69 .30 .91 8.59 -.21 -. 75 .46 1.00 19G 0 L280

L281 8.95 .16 .49 .26 .80 8.76 -.05 -. 17 .39 .85 19G 0 L281 L305 8.70 -.09 -.29 .17 .51 8.73 -.07 -.26 .27 .58 19V 0 L305

L312 8.55 -.23 -.76 .47 1.46 8.51 -.29 -1.03 .43 .94 19D 0 L312 L324 8.62 -.18 -.55 .23 .72 8.83 .03 .09 .54 1.18 1 9A 0 L324 L334 9. 16 .36 1.13 .30 .92 9.08 .27 .96 .52 1. 13 1 9P 0 L334 L356 8.89 .09 .29 .49 1. 50 8.66 -.14 -.49 .72 1.58 19P 0 L356 L562 9. 36 .57 1.76 .45 1. 38 8.61 -.20 -.70 .51 1 . 12 19P * L562

L565 8.67 -.13 -.40 .21 .66 8.83 .03 .09 . 16 .36 19T 0 L565

L56 8 9.00 .21 .64 .29 .90 8. 86 .06 .21 .59 1.30 19P 0 L568

L575 8.47 -.32 -.99 .34 1.05 8.66 -.15 -.52 .58 1.27 19G 0 L575

L576 8.88 .09 .27 .20 .62 8. 88 .08 .28 .55 1.21 19A 0 L576

L580 8. 74 -.05 -.15 .32 .98 8.36 -.44 -1.55 .43 .94 19G 0 L580

L581 8.96 .16 .51 .41 1.26 9.41 .61 2. 14 .45 1.00 19A 0 L581 L582 7.84 -.95 -2.95 .27 .83 8.24 -.56 -1.98 .50 1.10 19A * L582

L604 8.32 -.48 -1.48 .78 2.40 7.73 -1.07 -3.77 .96 2. 12 19A X L6 04 L606 8.85 .05 . 17 .23 .71 8. 83 .02 .07 .56 1.24 19P 0 L6 06 L610 8.42 -.37 -1.15 .32 .99 8. 54 -.26 -.91 .46 1.01 19A 0 L6 10 L622 8. 89 .09 .29 .38 1. 17 e.75 -.05 -.18 .46 1.01 196 0 L622

L650 9.01 .22 .67 .36 1.11 9. 10 .30 1.06 .49 1.07 19G 0 L650

L652 9.67 .67 2.71 .42 1.29 9.65 .84 2. 97 .49 1.07 19A * L652

L676 8.83 .04 .11 .68 2. 10 9.20 .40 1.39 .61 1.33 19A 0 L676

L6 84 8.48 -.31 -.96 .89 2.73 8.75 -.05 -. 19 .82 1.81 19* 0 L6 84

GR. MEAN 8.79 KI L0 NEST0N/M GRAND MEAN • 8.80 KIL0 NEWTON/M TEST DETERMINATIONS * 20 SD MEANS • .32 K I L6 NEWTON/M SD 0F MEANS • .28 KIL0NEWT0N/M 47 LABS IN GRAND MEANS

AVERAGE SDR • .32 KIL0NEWT0N/M AVERAGE SDR • .46 KIL0NEWTON/M

GR. MEAN • 50.22 LB/INCH GRAND MEAN • 50.28 LE/INCH

L250I 7.56 -1.23 -3.82 .23 .71 7.67 -1.13 -3.98 .26 • 56 19L L250I TOTAL NUMBER OP LABORATORIES REPORTING • 52

Best values: J16 8.8 + 0.5 kilonewtons per meter

K32 8.8 + 0.5 kilonewtons per meter

Data from the following laboratories appear to be

off by a multiplicative factor: 107.

Data from the following laboratories were omitted

from the grand means because the tests were

performed in ambient conditions: 652. 23
F

0

**0

X

06

0

00

0

00

0

0

0

06

0

0

0

0

0

0

0

X

«•0

0

0

o0

0

0

0

0

0

6

0

0

00

0

00

00

0

*

0

0

#

i:

NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL ANALYSIS IS 9- 1 TABLE 2 TENSILE BREAKING STRENGTH, KILONEWTONS PER METER - PACKAGING PAPER

TAP PI STANDARDS T404 0S-76 AND T494 OS-70, TENSILE BREAKING STRENGTH, PENDULUM AND CRE TYPES

MEANS C80RDINATES AVG

J 16 K32 MAJOR MINOR R © SB R VAR PROPERTY—

-TEST INSTRUMENT—’-CONDITIONS

.90 , 89 -11. 12 -1.08 ,18 19A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CRE ) 7.56 7.67 -1.67 -.09 .64 19L TENSILE STRENGTH, PACKAGING PAPER. CRE, 20 C, 65% 1 7,84 8. 24 -1. 09 .17 .97 1 9 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) 8,25 8. 59 -.56 .18 .96 19G TENSILE STRENGTH, PACKAGING PAPER, L6AD CELL ( CRE ) 8.32 7. 73 -1. 05 -.52 2.26 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL < CRE ) 8.38 8.57 46 .08 .84 19D TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CRE

)

8.42 8. 54 -.45 .04 1.00 19A TENSILE STRENGTH, PACKAGING PAPER, L0AD CELL ( CRE ) 8,43 8.52 -.46 .01 .92 1 9A TENSILE STRENGTH, PACKAGING PAPER, L0AD CELL ( CRE ) 80 47 8.77 28 . 18 .98 19 A TENSILE STRENGTH, PACKAGING PAPER, L0AD CBLL ( CRE > 8.47 8.66 -.34 .09 1. 16 19G TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL { CRE ) 8.48 8.57 39 .02 1.06 19T TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8.48 8.69 -.31 .11 .78 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL < CRE ) 8.48 8.75 -.27 e 16 2.27 19* TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) 8.49 8.75 27 .15 .74 1 9A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) 8,50 8. 29 55 -.21 1.02 1 9A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CEE ) 8.55 8.51 38 -.07 1.20 19D TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE)

8,62 8. 83 12 .13 .95 19A TENSILE STRENGTH, PACKAGING PA PER, LOAD CELL ( CRE ) 8.62 8.60 26 -.04 .77 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8.66 8.71 16 .01 1.1

1

1 9A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CRE ) 8.67 8.83 08 .10 .51 19T TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8 0 67 8.96 .00 .20 .73 19Q TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8.70 8.73 12 .00 .55 19V TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8,73 8.90 .02 .11 .89 1 9A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE > 8.-'4 8.36 -.32 -.31 .96 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) 8.75 8. 78 -.05 .01 .98 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8.80 7.64 -.74 -.90 .83 1 9A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE)

8.83 8.26 -.32 -.44 .96 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) 8.83 9. 20 .28 .28 1.72 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) 8.85 8. 83 . 05 -.02 .97 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8.85 8. 98 o 15 .10 1.09 19T TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8.88 3.88 . 12 .0 1 .91 19 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE

)

8.89 8. 75 . 04 -. 10 1.09 196 TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8.89 8.66 -.02 -. 17 1. 54 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TBSTER

8.90 9. 16 .30 .21 .77 1 9 P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

8.92 8.74 . 06 -® 13 .65 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTES

8.95 8.76 .09 14 .82 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL (CRE)

8.96 9.41 .51 .36 1.13 19A TENSILE STRENGIH, PACKAGING PAPER, LOAD CELL ( CRE ) 8.99 8.69 .08 -.21 . 80 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

9.00 8.86 .20 -.09 1.10 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

9.01 9. 10 .36 .09 1.09 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE

)

9.04 9.02 .33 .01 1.02 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

9.06 8.76 .17 -.20 1.01 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TBSTER

9.08 9.09 .40 .04 .94 19P TENSILE STRBNGTfl, PACKAGING PAPER, PENDULUM TESTER

9.09 8.97 .34 ». 06 .93 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

9.09 8.98 .34 -.05 1. 14 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

9. 16 9.08 .46 -.02 1.02 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

9. 17 8.71 .23 -.31 .78 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) 9.23 9,52 .79 .27 1. 19 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE

)

9.36 8.61 .31 -.51 1.25 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

9.44 9.26 .79 -.06 .76 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CBLL ( CRE

)

9.45 9.34 . 85 -.00 1. 13 1 9A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE

)

9.67 9.65 1.21 .10 1.18 1 9A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) 8.79 8. 80 1.00 95% ELLIPSE; 1. 00 .46 WITH GAMMA - 39 DEGREES

RH

1979

24
TENSILE STRENGTH , PACKAGING PAPERS

c-~ LD

CD

ID

LDLD

LD

CD

ID

CM

LD

JZ *—

i

CJ LD \ O

CD ld

CD

M"

CO

MCD

•'tf"

LD

MMSAMPLE J 1 6 = 8.79 K [ L0NEWT0N/M SAMPLE K32 = 8.80 K [L0NEWT0N/M

SAMPLE J 1 6 = 50.2 LB/INCH SAMPLE K32 = 50.3 LB/INCH

44 45 46 47 48 49 50 51 52 53 54 55 56 57

LB/INCH

25
REPORT N0» 59 S TAFPI C0LLAB0RATI VE REFERENCE PR0GRAM APRIL 1979 ANALYSIS 720-1 TABLE 1 TENSILE BREAKING STRENGTH, KIL6NEWT0NS PER METER

TAPPI STANDARD T494 6S-70, TENSILE BREAKING PROPERTIES 6F PAPER & PAPERBOARD < CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE HEAT SET OFFSET B00K TEST D. ' 20 LAB K39 75 GRAMS PER SQUARE METER G03 76 GRAMS PER SQUARE METER

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

Li 00 4.35 -.34 -1.83 ,39 1.63 2. 97 -.22 -1.34 .16 1.09 20E 0 LI 00 L105 4.7S “. 14 -.48 .56 2.34 3,22 .03 .16 .14 .93 20A 0 LI 05

Li I 5 4*86 -.03 -.12 .15 .64 3, 13 -.06 -.37 • 15 1.03 20D 0 LI IS me 4.89 — ,00 -.01 .21 .07 3. 12 -.07 ",42 . 1 1 .77 20A 0 LI 18 L122 4* 89 -.01 -.02 .18 .75 3. 13 -.07 -.39 . 14 .94 20A 0 L122 L124C 4*27 “.62 -2. 1

0

.55 2.32 3.11 -.09 -.52 • 12 . 82 20A • LI24C

Lias 5* 02 . 13 .43 .31 1.29 3*22 .03 • 10 . 14 ,96 20C 0 Lias

1131 4*96 .09 .20 c 26 1.09 3.20 .01 .07 .21 1.41 201 e Ll 31

Li 4 i T 6*02 .13 ,44 ,30 1.26 3.19 -.00 -.00 • 14 .97 20A 0 LI 4 IT

!Li 43 s.ss .66 2.25 .23 .99 3*64 .45 2.66 • 14 .95 201 a Ll 43

LI 48 4 * 86 -.03 -.11 .16 *75 2.98 -.22 -1.29 • 11 ,77 20A 0 Ll 48

LI 59 4.83 -.06 -.22 .22 .93 3. 10 -.10 -.57 .17 1.17 20A 0 Ll 69 L163 5*08 .19 .64 .26 1.08 3.27 .08 .45 .15 1.01 20D 0 Ll 63

LI 6? 5,56 .67 2.29 .13 .74 3. 59 .40 2.39 .11 .75 20G 0 Ll 67

Li 85 4.97 .08 .27 .20 .85 3.25 .05 .33 .12 .82 20C e Ll 85 L223B 4,99 .10 .33 .18 .70 3. 10 -.09 -.56 .23 1.56 20A o L223B

L22 6C 4,57 -.32 -1.08 .33 1.40 3.08 1 1 -.66 .22 1.54 20C o L226C

L230 4*98 .09 .32 .14 .58 3.24 .04 .26 .12 .81 200 0 L230 L243 4.89 -.01 -.02 .10 .81 3. 15 -.05 -.27 *11 .75 20A 0 L243

L255 5, 15 .26 .90 .24 1.00 3,24 .05 .29 .13 .92 20A 0 L255

L260 4,90 *01 .03 .17 .72 3.20 .01 .04 .10 .67 20A 0 L260

L261 5* IS .26 .88 .27 1. 15 3.37 .17 1.03 .20 1. 35 20A 0 L261 L278 5,09 .20 .69 .21 .89 3.30 . 1 1 .65 .15 1.04 20A 0 L278

L291 4.74 -.15 -.53 .15 .64 2.98 -.21 -1.25 .19 1.29 20A 0 L291 L309 4.27 -.62 -2.10 .27 1.14 2.98 -.21 -1.24 .17 1. 14 20E 0 L309 L325 4.99 . 10 .34 .23 .96 3.05 -.15 -.87 .17 1. 14 20E 0 L325

L328 4*87 -.02 -.06 .20 . 85 3.07 -.12 -.72 .22 1.48 20A 0 L328

L331 5, 13 .24 .81 .33 1. 39 3.51 .32 1.90 .20 1.35 2 0A 0 L331 L333 5.06 .16 .56 .24 1.00 3.27 .07 .43 . 1 1 .76 20 A 0 L333

L344 5,06 .17 .59 .31 1.31 3.24 .05 .29 . 1 1 .73 20 A 0 L344 L352 4.06 -.83 -2.83 .39 1.66 2.85 -.35 -2.06 . 14 .98 20A a L352 L356 4.78 -.12 -.39 .32 1.36 3. 16 -.04 -.22 . 15 1.04 20A 0 L356

L360 4.92 .03 . 1 1 .25 1.06 3.30 *11 .66 .15 1.04 20B 0 L360

L390 4.96 .07 .22 .30 1.26 3. 24 .05 .28 . 16 1.09 20A 0 L390

L442 4.90 .01 .03 .10 .43 3.27 .06 .45 .11 .74 20G 0 L4 42 L557 4. 89 -.00 -.00 .21 .87 3.23 .04 .22 .09 .61 20A 0 L557

L55 8 .94 -3.95 -13.43 .03 . 14 .67 -2.52 -1 5. 03 .03 .23 20 A • L556

L55 9 5. 13 .24 .82 .11 .48 3.25 .06 .35 . 1 1 .72 20A 0 L559 LS63A 4.28 -.61 -2.08 .36 1. 52 2.76 -.44 -2.60 .19 1.29 20A a L563A

L563B 1,94 -2.95 -10.04 .38 1.60 1.49 -1.70 - 10. 14 .07 .45 20A * L563B

L567 4. 86 -.03 9 ® O 10 .15 .64 3. 15 -.05 -.28 .13 .88 20A 0 L567

LS74 4.94 .05 .17 .19 .82 3.27 .08 .48 .14 .96 20A 0 LS74 L575L 4.99 .10 .33 .23 .98 3. 17 -.02 14 .10 .70 20G 0 L575L

L592 4.83 -.06 -.21 .16 .66 3.22 .03 .17 . 1 1 .72 20A 0 L592

L61 8 4.82 -.07 -.25 .34 1. 44 3.31 .12 .69 .23 1.56 20A 0 L618

L69 8 5. 13 .24 ,83 .27 1.15 3.42 .23 1.34 . 1 1 .78 20E 0 L698

GR® MEAN " 4. 89 KXL8NEVT0N/M GRAND MEAN - 3. 19 K IL0NEWT0N/M TEST DETERMINATIONS - 20

SD MEANS • .29 KIL0NEWT8N/M SD OF MEANS -

. 17 K IL0NEWT0N/M 44 LABS IN GRAND MEANS

AVERAGE SDR - .24 KIL0NEWT0N/M AVERAGE SDR * .15 KILONEWTON/M

GR© MEAN -16,496 LB/15 MM GRAND MEAN - 10.770 LB/15 MM

L139 5.02 .13 .45 .24 1.02 3.25 .06 . 36 . 13 .91 20 H L139

L21 1 13.94 9.05 30.78 1.26 5.30 9. 67 6.67 39.75 .94 6.43 201 L211 L250I 4,33 -.56 -1.91 .14 .60 2.69 -.50 -2.98 .09 .61 20L L250I TOTAL NUMBER OF LABORATORIES REPORTING - 49

Best values: K39 4.9 + 0.6 kilonewton per meter

G03 3.2 + 0.3 kilonewton per meter

Data from the following laboratories appear to be

off by a multiplicative factor: 558, 563B.

26
RE PART NO. 59S TAPP I COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T20-1 TAHLE 2 TENSILE BREAKING STRENGTH. KI LA NEWTONS PER METER

TAPPI STANDARD T494 63-70, TENSILE BREAKING PR6PERTIBS 6F PAPER A PAPERB6ARD ( CONSTANT RATE LAB CODE F MEANS

K39 G 03 COORDINATESMAJOR MINOS AVG

R. SDR VA8 PROPERTY TEST INSTRUMENT— --CONDITIONS

L558 * • 94 .67 -4.67 -.43 . 19 20 A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS,

L563B * 1.94 1. 49 -3.40 -. 16 1.03 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L352 * 4.06 2.85 -.90 .07 1.32 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L124C * 4.27 3.11 -.59 .21 1.57 2 OA TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L309 0 4.27 2.98 -.64 .10 1. 14 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. L563A * 4.26 2.76 -.74 -. 1 1 1.40 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L2 5 0I 4.33 2. 69 -.73 -.19 .61 20L TENSILE STRENGTH, PRINTING PAPER, CRE, 20 C, LlOO 0 4.35 2.97 -.58 .05 1.36 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L226C 0 4.57 3. 08 -.33 .05 1.47 20C TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L29 1 0 4.74 2.98 -.23 -.12 .97 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS.

LI 05 0 4.75 3.22 -. 11 .09 1.63 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L3S6 0 4.70 3. 16 -. 12 .02 1.20 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L618 0 4.82 3.31 -. 01 .14 1 o 50 2 OA TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 59 0 4.83 3. 10 -. 10 -.06 1.05 2 OA TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L592 0 4.83 3.22 -.04 .05 .69 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 15 0 4.86 3. 13 -. 06 -.04 .84 20D TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 4 8 0 4.86 2.98 -. 13 -.18 .76 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L567 0 ”4.86 3. 15 -. 05 -.03 .76 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. L32e O 4.87 3. 07 -. 07 -.10 1.17 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. L243 0 4.89 3. 15 -. 03 -.04 .78 20A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS,

LI 2 2 0 4.39 3. 13 -. 03 -.06 .85 20A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS,

LI 18 0 4.89 3. 12 -.04 -.06 .82 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. L557 0 4.89 3.23 .02 .03 .74 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L442 0 4.90 3.27 .04 .06 .58 2 OG TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L26 0 0 4.90 3.20 .01 .00 .69 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L36 0 0 4.92 3.30 .08 .08 1.05 20 B TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, L574 0 4.94 3.27 . 08 .05 .89 20A TENSILE STRENGTH, PRIMARILY PR INTI NC PAPERS,

L39 0 0 4.96 3.24 . 08 .01 1. 19 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 85 0 4.97 3.25 .09 .01 .84 2 OC TENSILE STRENGTH, PRIMARILY PRINTING PAPERS.

L13 1 0 4.98 3.20 c 08 -.03 1.25 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L23 0 0 4.98 3. 24 . 10 -.00 .70 206 TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L223B 0 4.99 3. 10 .04 -.13 1. 17 2 OA TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. L575L 0 4.99 3.17 .07 -.06 .84 20G TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L325 0 4.99 3.05 . 02 -.18 1.05 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 25 0 5.02 3.22 . 13 -.03 1.13 20C TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L14 IT 0 5.02 3. 19 . 12 -.06 1.11 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 39 5.02 3.25 .15 -.01 .96 2 OB TENSILE STRENGTH, PRINTING PAPER, CRE, SHORT L333 0 5.06 3.27 .16 -.01 .88 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L344 0 5o 06 3.24 . 16 -.04 1.02 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 63 0 5.08 3.27 .20 -.02 1.04 20D TENSILE STRENGTH. PRIMARILY PRINTING PAPERS,

L278 0 5.09 3.30 .23 .00 .96 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS.

L331 0 5.13 3.51 .36 .17 1.37 2OA TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L5 59 o 5.13 3.25 .24 -.06 .60 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L69 8 0 5. 13 3.42 .32 .09 .96 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L261 0 5.15 3.37 .31 .04 1.25 20A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS. L255 0 5.15 3. 24 .26 -.08 .96 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L143 * 5.55 3. 64 .79 .09 .97 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

LI 67 0 5.56 3.59 .78 .05 .75 20G TENSILE STRENGTH, PRIMARILY PRINTING PAPERS,

L21

1

13.94 9. 87 11.10 1.78 5.86 201 TENSILE STRENGTH, PRINTING PAPER, CRE 20 c. GMEANS

4.89 3.19

95% ELLIPSE: .64 .22

1.00 WITH GAMMA - 27 DEGREES

6F ELONGATION)

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

LOAD CELL (CRE)

LOAD CELL (CRE)

65% RH 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 (CRE) LOAD CELL (CRE) LOAD CELL ( CRE

)

LOAD CELL (CRE) 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)

65% RH

27
KIL0NEWT0N/M

TENSILE STRENGTH , CRE TYPE

SAMPLE K39 = 4.89 K I L0NEWT0N/M SAMPLE G03 = 3-19 K t LGNEWT0N/M

SAMPLE K39 = 16.5 LB/15 MM SAMPLE G03 = 10.8 LB/15 MM

KIL0NEUT0N/M

r r

1 1 1 1 1 1 13 14 15 16 17 18 19 20

LB/15 MM

28
REPORT NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T2 0-2 TABLE 1 TENSILE BREAKING STRENGTH, KILO NEWTON 9 PER METER

TAPPI STANDARD 1404 OS-76, TENSILE BREAKING STRENGTH OF PAPER AND PAPERBOARD < PENDOLUM-TYPE TESTER)

LAB

SAMPLE

K39 75 GRAMS PRINTING

PEE SQUARE METER

SAMPLE

G03 HEAT SET OFFSET BOOK76 GRAMS PER SQUARE METER TEST D. - 20 C0DE MEAN DEV N, DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI 03 SoOO -.00 -.01 .15 .59 3. 29 -.02 -.07 .12 .74 20R 0 Li 03

LI 2 1 5,29 .28 1.03 .26 1.05 3.25 -.05 -.20 .16 .99 20 P * L i 2 i L124P 4. 83 -.18 -.64 .28 1. 14 3. 29 -.01 -.05 . 16 .99 20P e L124P

LI 2

6

5,00 -.01 -.03 .21 .82 3.32 .01 .05 . 14 . 86 20T 0 Li 28

Li 4 8 4,88 -. 12 -.44 .20 .79 3. 19 -.12 -.46 . 16 1.00 20P 6 Li 46

Li 58 4,33 -.67 -2.43 .18 .70 2.69 -.61 -2.41 .15 .96 20T 0 L i 58

LI 62 4,75 -.26 -.93 .23 .93 3. 16 -.14 -.57 .16 1.02 20* 0 Li 62 LI82L 4.88 -.12 -.45 .29 1. 17 3. 13 -.17 -.69 .10 .60 2 OT 0 L182L

LI 89 5.13 .12 .44 .23 .92 3.42 . 12 .45 .15 .95 20R 0 Li 89

Li 9 1 P 5. 08 .08 .30 .22 .87 3.32 .01 .05 .11 .69 20P 0 L191P

Li 95 4,94 -.06 -.22 .32 1.28 3.27 -.04 -. is .24 1.53 20R 0 Li 95

L2 i 2 4,98 -.02 -.07 .24 .94 3.26 -.05 -.19 .21 1.32 20R 0 L212

L21 3 4.51 -.49 -1.78 .32 1.30 2.96 -.35 -1.36 .16 1.02 20T 0 L213

L2 i 8 5.12 .12 .42 .20 .81 3.21 — o 09 -.37 .08 .53 20P 0 L218

L233 5.06 .06 .21 .21 .84 3.35 .05 . 19 .14 .87 20Q 0 L233

L24 i 5.28 .27 1.00 . 12 .49 3.28 -.02 -.09 . 1 1 .72 20R 0 L24

1

L24 2 4. 83 -.17 -.62 .22 .87 3.07 -.23 -.91 .17 1.09 20Y 0 L242

L24 9 5.05 .04 .16 .30 1.22 3.34 .03 .13 .19 1.21 20P 0 L249

L259 5.34 .33 1.21 .24 .97 3.57 .27 1.05 .09 .55 20P 0 L259

L262 5. 15 .15 .53 .22 .87 3.44 .13 .52 .15 .96 20R 0 L262

L27 5 4.68 -.32 -1. 18 .28 1. 10 3.02 -.28 -1.11 .18 1.11 20 R 0 L275

L279P 5.31 .31 1.13 .46 1.85 3.81 .51 2.00 .27 1.69 20P 0 L279P

L285 4.e3 -.17 -.62 .31 1.23 3.47 . 16 .64 .31 1.98 20P * L285

L29 0 4.99 -.01 -.03 .23 .91 3.48 .18 .70 . 16 1.03 20P 0 L290

L31 i 4.89 -.11 -.39 .24 .97 3. 27 -.03 -. 12 .14 .89 20V 0 L31 i L32 i 4. 17 -.83 -3.03 .39 1.57 2.51 -. 80 -3. 13 . 14 .90 20Q *• L321 L330 5. 16 .16 .57 .19 .75 3. 34 .03 . 13 .16 .99 20P 0 L330 L356 5. 09 .09 .32 .49 1.98 3.30 -.00 -. 00 .23 1.47 20P 0 L356

L376 5. 14 .14 .49 .23 .91 3.30 -.01 -. 02 .22 1.37 20P 0 L376

L393 5.30 .29 1.07 .17 .68 3. 52 .22 .85 .18 1. 10 20P 0 L393

L554 5.55 • 55 1.99 .21 .82 3. 86 .56 2. 18 .14 .91 20P 0 L554

L556 5.31 .31 1.11 .23 .94 3.64 .33 1.31 .18 1.11 20P 0 L556

L57 i 1. 15 -3.85 - 13.97 .05 .21 .77 -2.53 -9. 94 .04 .25 20P U L571 L565 5.21 .21 .76 .30 1.20 3.43 • 13 .51 .14 .86 20V 0 L585 L599 4.87 -. 13 -.48 .35 1. 40 3. 19 -.11 -.45 .22 1.40 20V 0 L599

L626 5.06 .06 .21 .24 .94 3.42 .12 .46 .10 .63 20T 0 L626 L680 4.97 -.03 -.12 .25 .99 3.40 .09 .37 . 14 .91 20R 0 L6 80 L692 5. 15 .15 .54 .26 1. 05 3.51 .20 .79 .15 .92 20P 0 L692

GRo MEAN * 5.00 KILONEWTON/M GRAND MEAN • 3.30 KILONEWTON/M TEST DETERMINATIONS - 20 SD MEANS

GR« MEAN

• . 28 •16.e75

KILONEWTON/M

AVERAGE SDR - LB/ 15 MM

SD OF MEANS - .25 KILONEWTON/M

GRAND MEAN -

.25

11.146

K I LO NEWTON/

M

AVERAGE SDR LB/15 MM

- . 16 37 LABS IN GRAND KILONEWTON/M

MEANS

TOTAL NUMBER OF LABORATORIES REPORTING * 38

Best values: K39 5.0 + 0.4 kilonewton per meter

G03 3.3 + 0.4 kilonewton per meter

Data from the following laboratories appear to be

off by a multiplicative factor: 571.

29
REPORT NO. 59S 1APPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T20-2 TABLE 2 TENSILE BREAKING STRENGTH, KIL0NEWT0NS PER METER

TAPPI STANDARD T404 0S-76, TENSILE BREAKING STRENGTH 6F PAPER AND PAPERB0ARD ( PENDULUM- TYPE TESTER)

LAB MEANS C00 RDINATES AVG

CODE F K39 G03 NAJ0B MINOS E.SDB VAR PROPERTY TEST INSTRUMENT CONDITIONS

L57 1 » io 15 .77 -4® 55 .73 .23 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L321 * 4* 17 2.51 -1® 15 -.03 1.24 20Q TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 58 0 4.33 2. 69 -.91 -.00 .83 20T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L2 13 0 4.5 a 2.96 -.59 .07 1. 16 20T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L27 5 0 4.68 3.02 -.43 .0 1 1.11 20R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 62 0 4.75 3. 16 -.29 .07 .98 20* TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LA24P 0 4.83 3. 29 -. 14 .11 1.06 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L285 « 4.83 3.47 -.02 .23 1.60 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L24? 0 4.83 3.07 -.28 -.06 .98 20 Y TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LS99 0 4.87 3. 19 -.18 .01 1.40 20V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI82L 0 4.88 3. 13 -.21 -.04 .89 20T TENSILE STRENGTH. PRIMARILY PRINTING PAPERS. PENDULUM TESTER

LI 48 0 4.ee 3. 19 -o 17 -.00 .89 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L3i l 0 4.89 3.27 -.10 .05 .93 20V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 9 5 0 4.94 3.27 -.07 .01 1.40 2 OR TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L68C 0 4.97 3.40 . 04 .09 .95 20R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L212 0 4.98 3.26 -.05 -.02 1. 13 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L29 0 0 4.99 3. 48 .11 .14 .97 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 28 0 5.00 3.32 . 00 .02 .84 20T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

Li 03 0 5.00 3.29 -.01 -.01 .66 20R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L249 0 5.05 3.34 e 05 -.00 1.21 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. PENDULUM TESTER

L626 0 5.06 3.42 . 12 .05 .79 20 T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L233 0 5.06 3.35 e 08 -.00 .85 20Q TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

Li 9 a p 0 5.08 3.32 .07 -.05 .78 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L356 0 5.09 3.30 . 06 -.06 1.72 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L2 i 8 0 5.12 3.21 .02 -.15 .67 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 89 0 5.13 3.42 . 17 .00 .94 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L376 0 5.14 3.30 . 10 -.10 1.14 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L262 0 5. 15 3.44 .20 -.00 .91 20R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L69 2 0 5. 15 3.51 .25 .05 .99 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L33 0 0 5. 16 3.34 . 14 -.08 .87 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L585 0 5.21 3.43 . 24 -.04 1.03 20 V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L24 1 0 5. 28 3.28 . 19 -.20 .60 20R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

Li 2

1

4 5.29 3.25 . 18 -.23 1.02 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L393 0 5.30 3. 52 .36 -.04 .89 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L556 0 5.31 3.64 .45 .04 1.02 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L279P 0 5.31 3.81 .57 . 17 1.77 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L259 0 5.34 3. 57 .43 -.03 .76 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L554 0 5.55 3.86 .78 .04 .87 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

GMEANS

:

5.00 3. 30 1.00 95* ELLIPSE: .94 .23 WITH GAMMA - 42 DEGREES

30
TENSILE STRENGTH » PENDULUM TYPE

o

o

m

o

oo

z:LD

o

\

an

_j

o

o

o

CD

O

00

SAMPLE K39 = 5-00 KILONEWT0N/M SAMPLE G03

SAMPLE K39 = 16-88 LB/15 MM SAMPLE G03

3.30 K I L0NEWT0N/M

11.15 LB/15 MM

KIL0NENTON/M

14.0 —i

1 1 1 1 1 1 1 1

1 1 15.0 16.0 17.0 18.0 19.0 20.0

LB/15 MM

31
REPORT NO. 59

S

TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T25-1 TABLE 1 TENSILE ENERGY ABSORPTION, JOULES PEE SQUARE METER - PACKAGING PAPER

TAPPI STANDARD T494 0S-70. TENSILE BREAKING PROPERTIES OF PAPER & PAPERBOARD (CONSTANT RATE OF ELONGATION 1

LAB

SAMPLE

J 1

6

PRINTING

149 GRAMS PER SQUARE METER

SAMPLE

K32 105 GRAMS PRINTING

PER SQUARE METER TEST D. • 20

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

LI 06 128.4 4,3 .27 15.3 1.18 74.2 -7.6 -.62 12.5 1.16 25F O LI 06

LI 22 139.4 15. 3 .97 52.4 .95 85.0 3.2 .26 7.8 .73 2SP 0 L122

LI 26 130.7 6.6 .41 1 1.6 .89 82.0 .2 .02 8. 1 .75 2SG 0 LI 26

LI 5 1 131.5 7.4 .47 9.4 .72 91.6 9.8 .80 9.0 . S3 25F 6 LI 5

1

LI 62 118.8 -5.2 -.33 8.7 .67 71.5 -10.3 -. 84 9.8 .91 2 SB 6 L182

L237B 139.0 14. 9 .94 13.3 1.02 102.7 20.9 1.71 24. 8 2.31 2SH 6 L237B

L243 124.6 .5 .03 7.4 .57 75.5 -6.3 -.52 8.2 .76 25Z 0 1.243 L250 111. 4 -12.7 -.eo 5.3 .40 64.3 -17.5 -1.43 3.7 .35 25A 0 L250 L264 117. 1 -7.0 -.44 1 1.7 .90 76.9 -4.9 -.40 8.9 .83 25F 6 L264

L26 7 133.3 9.2 .58 13.0 .99 80.2 -1.6 -.13 7.7 .72 25F 6 L267

L26 8 146.9 22.8 1.44 IP.0 .77 92.2 10,4 .85 15. 1 1.41 25B 0 L268

L273 127,6 3.5 .22 10.9 .84 87.7 5.9 .48 12.3 1. 15 25F 0 L273 L280 111.2 -12.9 -.81 10. 5 .81 74.2 -7.6 -.62 8.3 .77 25B O L280

L312 150.0 26. 0 1.63 22. 1 1.69 103.3 21. 5 1.76 12.4 1. 16 25J 0 L312 L580 99.4 -24.7 -1.55 13.0 1. 00 58.9 -22.9 -1.87 6.3 .58 25C 0 L580

1,6 04 101.6 -22 0 5 -1,41 24.4 1.87 92.6 10.9 .89 16.4 1.53 25A 0 L604 L676 98.6 -25.5 -1.65 22.5 1.73 77.5 -4.2 -.35 1 1.3 1.05 25F 0 L676

GR. MEAN 124. 1 JOULES/SQ M GRAND MEAN 81.8 JOULES/SQ M TEST DETERMINATIONS - 20 SD MEANS • 1 5o 9 JOULES/SQ M SD OF MEANS

AVERAGE SDR 13.0 JOULES/SQ M GR. MEAN * 8.501 FT. LB/SC FT GRAND MEAN TOTAL NUMBER OF LABORATORIES REPORTING * 17

Best values: J16 124 + 25 joules per square meter

K32 82 + 21 joules per square meter

* 12.3

• 5.602

JOULES/SQ M AVERAGE SDR - FT.LB/SQ FT

10.7

17 LABS IN JOULES/SQ GRAND

M MEANS

REPORT NO. 59 S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 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 HATE OF ELONGATION)

LAB MEANS COORDINATES AVG CODE F J 16 K3 2 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L676 0 9e # 6 77.5 -23.5 10.8 1.39 25F TENSILE ENERGY ABS. , PACKAGING PAPER, LI ME/FLAT JAWS

L580 6 99© 4 58.9 -33.3 -5. 1 .79 25C TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/LINE JAWS

L6 04 6 1 0 1© 6 92.6 -12.5 21.6 1.70 25A TENSILE ENERGY ABS. .PACKAGING PAPER, FLAT/FLAT JAWS

L280 0 1 1 1© 2 74. 2 -14.9 1.0 .79 2 5B TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS L250 0 1 1 !• 4 64. 3 -20.4 -7.3 .38 25A TENSILE ENERGY ABS. .PACKAGING PAPER, FLAT/FLAT JAWS

L264 0 117© 1 76.9 -8.5 1 . 86 25F TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS

L 1 82 0 1 18© 8 71.5 -10. 1 -5.6 .79 25B TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS

L243 0 1 24© 6 75.5 -3.1 -5. 5 .66 25Z TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/LINE JAWS

L27 3 0 127.6 87.7 6.2 2.9 .99 25F TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS

LI 06 0 128© 4 74.2 -.7 -8.7 1. 17 25F TENSILE ENERGY ABS. .PACKAGING PAPER. LINE/FLAT JAWS

LI 26 0 130.7 82.0 5.5 -3.5 .82 25G TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/LINE JAWS

LI 5 1 0 131.5 91.6 11.7 4.0 .78 25F TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/FLAT JAWS

L267 0 133. 3 80.2 6.8 -6.5 .86 25F TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS L237B 0 139.0 102.7 24. 1 9.0 1.67 25H TENSILE ENERGY ABS. .PACKAGING PAPER, 2-PIN STRAIN GAGE

L122 0 139. 4 85.0 14.5 -5.9 .84 25P TENSILE ENERGY ABS. .PACKAGING PAPER, PATTERNED FLAT JAWS L26 8 0 146.9 92.2 24.7 -4.2 1.09 25B TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS

L312 0 150.0 103.3 33.6 3.3 1.43 25J TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS

GMEANS

:

124. 1 81.8 1.00

95% .ELLIPSE: 51.6 22.4 WITH GAMMA 34 DEGREES

32
T -E -A . , PACKAGING PAPERS

CD

CO\

CD

Li_

SAMPLE J 1 6 = 124.

SAMPLE J 1 6 = 8.5

JOULES/SQ M FT. LB/SQ FT

SAMPLE K32 = 82.

SAMPLE K32 = 5.6

JOULES/SQ M FT. LB/SQ FT

CD •

GO -

O

CD -

LO -

O

coh

o

o

o

o

CD S

CO

CO ^

LJ-I S'

CD

~D

ro -

cm -1

o

o

CD

O

LD

O-"3-

O

CO

^ + , X . » NOT IN GRAND MEANS

CO^

ANALYSIS T25-1

Q_

CE

CO

©

© O

O

O

O

O

O

0 O

O

O

O

O

(D O

SAMPLE J 16

60 70 80 90 100 110 120 130 140

J0ULES/SQ M

150 160 170 180

8 9

FT. LB/SQ FT

10

I

1

1

12

33
REPORT NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T26-1 TABLE 1 TENSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PRINTING PAPER

TAPPI STANDARD T494 6S-70, TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD { CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE HEAT SET OFFSET BOOK TEST I>. * 20 LAB K39 75 GRAMS PER SQUARE METER G03 76 GRAMSi PER SQUARE METER

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

LI 1 5 54.4 .0 .00 4.0 .73 32.0 .7 .23 1.9 .57 26C O Ll 15

Li i e 56, 1 1.7 .33 6.2 1.14 31.4 .1 .04 3.7 1.13 26B 0 Ll 18 L121 87.6 33.2 6.5S 14. 1 2.60 47.6 16.3 5.15 14.5 4.40 26D * L121 L122 62. 1 7.8 1.54 6.7 1.24 35.3 3.9 1.25 4.1 1.24 26L 0 L122

LI 39 55,4 1. 1 .21 6.6 1.22 32.0 .6 .20 4.0 1.22 26H 0 L139

LI 59 56.4 2.0 .39 5.6 1.03 32.0 .7 .21 4.8 1.45 26F 0 Ll 59

Ll 63 55.3 .9 .17 5.6 1 .03 32.2 .9 .29 3.2 .95 26J 0 L 1 63 L167 55.6 1.3 .25 1.8 .32 35.9 4.6 1.46 1.1 .33 26D 0 Ll 67

li es 51.7 -2.7 -.53 6.2 1.14 31.5 .2 • 06 3.6 1.08 26C 0 Ll 85 L21 1 55.5 1. 1 .22 8.7 1.60 30. 1 -1.2 -.39 4.3 1.31 26Z 0 L21

1

L250 52.2 -2.2 -.44 3.5 .64 28.0 -3.3 -1.04 2. 2 .66 26A 0 L250 L255 57. 1 2.7 .54 7.0 1.28 30.5 -.8 -.25 4.2 1.28 26P 0 L255 L309 41.7 -12.7 -2.51 8.4 1. 53 28.9 -2.4 -.76 5.3 1.59 26J * L309 L356 60.7 6.3 1.25 6.3 1.15 32. 1 .8 .25 4.5 1.37 26A 0 L356

L39 3 52. 1 -2.3 -.45 2.9 .53 29.5 -1.8 -.58 3.0 .89 26V 0 L393

L442 59.5 5. 1 1.02 2.7 .50 37.4 6. 1 1.92 2.1 .65 26B O L442

L567 46.0 -8.4 -1.67 5.8 1.07 23.0 -8.4 -2.64 2.7 .82 26A 0 L567 L575 57.9 3.5 .70 7.0 1.29 31.7 .4 . 12 2.9 .87 26A 0 L575 L592 49.2 -5. 1 -1.02 6.0 1. 10 30. 1 -1.2 -. 37 3.9 1.19 26H O L592

GR. MEAN 8 54.

4

J601ES/SQ M GRAND MEAN - 31.3 J6ULES/SQ M TEST DETERMINATIONS - 20

SD MEANS • 5.0 JOULES/SQ M SD OF MEANS - 3.2 JOULES/SQ M 16 LABS IN GRAND MEANS AVERAGE SDH • 5.4 J6ULES/SQ M AVERAGE SDR - 3.3 JOULES/SQ M GR, MEAN 2.726 FT* LB/ SQ FT GRAND MEAN “ 2.146 FT.LB/SQ FT

TOTAL NUMBER OF LABORATORIES REPORTING « 19

Best values: K39 54+8 joules per square meter

G03 31+5 joules per square meter

Data from the following laboratories appear to be

off by a multiplicative factor: 121.

REPORT NO, 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T26-1 TABLE 2 TENSILE ENERGY ABSORPTION, JOULES PEE SQUARE METER - PRINTING PAPER

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

LAB MEANS COORDINATES AVG CODE F K39 G03 MAJOR MINOR R. SDR VAR PROPERTY—-TEST INSTRUMENT CONDITIONS

L309 « 41*7 28.9 -12.3 3. 8 1.56 26J TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/FLAT JAWS

L567 6 46* 0 23.0 -11.3 -3. 5 .95 26A TENSILE ENERGY ABS. .PRINTING PAPERS, FLAT/FLAT JAWS

L592 a 49*2 30. 1 -5.1 1.4 1.14 26H TENSILE ENERGY ABS. , PRINTING PAPERS. 2-PIN STRAIN GAGE

Ll 85 a 51*7 31.5 -2.3 1.4 1.1 1 26C TENSILE ENERGY ABS. .PRINTING PAPERS, LINE/LINE JAWS

L39 3 a 52* 1 29.5 -2.9 -.6 .71 26V TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/FLAT JAWS

L250 a 52*2 28.0 -3.5 -1.9 .65 26A TENSILE ENERGY ABS. .PRINTING PAPERS, FLAT/FLAT JAWS

Ll 15 a 54* 4 32.0 .3 .6 .65 26C TENSILE ENERGY ABS. , PRINTING PAPERS, LINE/LINE JAWS

L163 a 55* 3 32.2 1.2 .4 .99 26 J TENSILE ENERGY ABS. .PRINTING PAPERS, LINE/FLAT JAWS

Ll 39 a 55*4 32.0 1.2 . 1 1.22 26 H TENSILE ENERGY ABS. .PRINTING PAPERS, 2-PIN STRAIN GAGE

L21 1 a 55.5 30. 1 .4 -1.6 1.46 26Z TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/LINE JAWS

Ll 67 a 55*6 35.9 3.3 3.5 .33 26D TENSILE ENERGY ABS. .PRINTING PAPERS, 2-PIN STRAIN GAGE

Ll 1 8 a 56* 1 31.4 1.5 -.7 1. 13 26E TENSILE ENERGY ABS. .PRINTING PAPERS, FLAT/FLAT JAWS

L159 a 56*4 32.0 2. 1 -.3 1.24 26F TENSILE ENERGY ABS. .PRINTING PAPERS, LINE/FLAT JAWS

L255 a 57. 1 30.5 2.0 -2.0 1.28 26 P TENSILE ENERGY ABS. .PRINTING PAPERS. PATTERNED FLAT JAWS

L575 a 57*9 31.7 3.3 -4.3 1.08 26 A TENSILE ENERGY ABS. .PRINTING PAPERS. FLAT/FLAT JAWS

L44 2 a 59*5 37.4 7.4 3.0 . 58 26 B TENSILE ENERGY ABS. .PRINTING PAPERS, LINE/FLAT JAWS

L356 a 6 0*7 32. 1 5.9 -2.2 1.26 26A TENSILE ENERGY ABS. .PRINTING PAPERS, FLAT/FLAT JAWS

Ll 2 2 a 6 2* 1 35.3 8.7 1 1. 24 26L TENSILE ENERGY ABS. .PRINTING PAPERS, PATTERNED FLAT JAWS

Ll 2 1 n 97.6 47.6 37.0 -1. 1 3. 50 26D TENSILE ENERGY ABS. .PRINTING PAPERS, 2-PIN STRAIN GAGE

GMEANS: 54*4 31.3 1.00 95% .ELLIPSE: 15.6 5.6 WITH GAMMA - 27 DEGREES

34
T.E.fl PRINTING PAPERS

CD

CO\

CD

•^r

co

o

co

CD

c\j

<M

c\j

OD

SAMPLE K39 = 54. J0ULES/SQ M SAMPLE G03 = SAMPLE K39 = 3.73 FT.LB/SQ FT

LD

o

LDCO

CD

CO\

CO

LU

CD

~D

O

CO

LD

CvJ

O

(XI

LD

I _L

(T) + .X.* NOT IN GRAND MEANS

CO

<43 ANALYSIS T26-1

LjJ

I CL_ CL

CO

-0- ©<§©

-©-

O

* o

o

©

SAMPLE G03

J l

31 . J0ULES/SQ M 2.15 FT. LB/SO FT

©

©

©

©

©

©

©

SAMPLE K39

35 40 45 50 55 60

J0ULES/SQ M

65 70 75

i r 2.6

i i 3.0 3.4 3.8 4.2

FT.LB/SQ PT

4 .6

35
I

REPORT NO. 59 S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T28-1 TABLE 1 ELONGATION TO BREAK, PERCENT - PACKAGING PAPER

TAPPI STANDARD T494 6S-70, TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD {CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. -' 20 LAB J 16 149 GRAMS PER SQUARE METER K32 105 GRAMS PER SQUAFE METER

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

LI 06 2.37 .12 .52 .27 1.60 1.69 .13 .64 .17 1. 14 2 8B 6 LI 06

LI 22 2.42 .17 .75 .14 .81 1.61 .05 .26 .08 .53 28P 6 Li 22

LI 26 2. 24 -.01 -.02 .13 .78 1.49 -.07 -.34 .09 .65 28C 0 LI 26

LI 5

1

2.38 .13 .56 .30 1.81 1.94 .38 1.85 .23 1.62 28B 0 LI 5

1

LI 82 2.08 -.16 -.71 .08 . 48 1.36 -.20 -.96 *11 .79 28B 0 LI 82

L243 2. 15 -.10 -.4 1 .08 .47 1.39 -.17 -.83 .09 .64 28C 0 L243

L264 2.09 -.15 -.67 .19 1. 12 1.45 -.10 -.50 .11 .73 2 8B 0 L264 L265 2.04 -.21 -.92 .15 .88 1.46 -.10 -.47 .13 . 88 28 A 0 L265

L267 2. 23 -.02 -.09 .17 1.02 1.45 -.11 -.54 .11 .77 26B 0 L267

L26 8 2.45 .21 .89 .12 .71 1.66 .11 .52 .16 1.08 28B 0 L268

L2 8 0 2.07 -.17 -.75 .12 .69 1.46 -.09 -.45 .08 .56 28B 0 L280

L31 2 2.78 .53 2.29 .28 1.68 2. 04 .49 2.35 . 1 1 .73 2 SB 0 L3 1

2

L324 2.07 -.18 -.78 .13 .77 1.44 -. 12 -.57 .09 .65 28P 6 L324 L580 1. 84 -.40 -1.75 .16 .97 1.30 -.25 -1.22 . 18 1.24 28C 0 L5 80 L58 1 2. 05 -.19 -.84 .17 1.03 1.49 -.07 -.33 .12 .81 28A 0 L581

L582 2.50 .25 1.08 .00 .00 1.44 -.12 -.58 .46 3. 17 2 8A 0 L582

L676 2.45 .20 .86 .37 2. 18 1.80 .24 1.17 .15 1.03 28B 0 L676

GR„ MEAN • 2. 25 PERCENT GRAND MEAN • 1. 56 PERCENT TEST DETERMINATIONS - 20 SD MEANS • .23 PERCENT SD OF MEANS “ .21 PERCENT 17 LABS IN GRAND MEANS

AVERAGE SDR - .17 PERCENT AVERAGE SDR -

. 14 PERCENT

LI 53 2.80 .55 2.38 .18 1*07 2.08 • 53 2.55 .08 .56 28Q L 1 53 TOTAL NUMBER OF LABORATORIES REPORTING - 18

Best values: J16 2.2 + 0.3 percent

K32 1.5 + 0.3 percent

REPORT NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T28-1 TABLE 2 ELONGATION TO BREAK, PERCENT - PACKAGING PAPER

TAPPI STANDARD T494 0S-70, TEN3ILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS COORDINATES AVG CODE F J 16 K3 2 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L58 0 6 1 • 64 1.30 -.47 .07 1.11 28C ELONGATION, PACKAGING PAPER, LOAD CELL. LINE/LINE JAWS

L265 0 2® 0 4 1.46 -.23 .07 .88 28A ELONGATION, PACKAGI NG PAPER, LOAD CELL. FLAT/PLAT JAWS

L58I 6 2o 05 1.49 19 .08 .92 28A ELONGATION, PACKAGING PAPER, LOAD CELL. FLAT/FLAT JAWS

L324 0 2. 07 1.44 -.21 .03 .71 28P EL0NGATI0N, PACKAGING PAPER, LOAD CELL, PATTERNED FLAT JAWS

L280 6 2.07 1. 46 19 .04 .63 28B ELONGATION, PACKAGING PAPER, LOAD CELL. LINE/FLAT JAWS

LI 82 0 2.03 1.36 25 -.04 .64 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

L264 0 2.09 l. 45 -. 18 .02 .92 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

L243 0 2.15 1.39 -.18 -.07 .55 23C ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/LINB JAWS

L267 0 2. 23 1. 45 -.09 -.07 .89 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

Li 26 0 2.24 1.49 -.05 -.05 .71 28C ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/LINE JAWS

L 1 06 0 2.37 1.69 . 18 .02 1.37 2 8B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

LI 5 1 0 2.38 1.94 .35 .20 1.71 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

Li 22 0 2.42 1.61 „ 17 -.07 .67 28P ELONGATION, PACKAGING PAPER, LOAD CELL, PATTERNED FLAT JAWS

L676 0 2.45 1. 80 .31 .05 1.60 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

L26 8 0 2.45 1.66 .23 -.05 .90 28B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

L582 0 2.50 1.44 . 1 1 -.26 1. 58 28A ELONGATION, PACKAGING PAPER. LOAD CELL, FLAT/FLAT JAWS

L31 2 0 2.78 2. 04 .72 .02 1.20 2 8B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

LI 53 2.80 2.08 .76 .04 .82 280 ELONGATION, PACKAGING PAPER, PENDULUM, PATTERNED FLAT JAWS

GMEANS: 2.25 1. 56 1.00 95* ELLIPSE: .83 .27 WITH GAMMA - 41 DEGREES 36
PERCENT

EL0NGATI0N T0 BREAK • PACKAGING PAPER

SAMPLE J 1 6 = 2.25 PERCENT

i i i L SAMPLE K32 = 1 .56 PERCENT

i i i L

C\J

C\J o

C\J

03

CD

^ + . X . » NOT IN GRAND MEANS

CO

ANALYSIS T28-1

LU

Q_

CL

CO

©

©

©

©

©

+©

CJ

o

CD

O

©

CL

cd^d

©

© ©

©

SAMPLE J 16

1.4 1.6 1.8 2.0 2.2 2.4

PERCENT

2.6 2.8 3.0 3.2

37
REPORT NO. 59

S

TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T29-1 TABLE 1 ELONGATION TO BREAK. PERCENT - PRINTING PAPER

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

SAMPLE PRINTING SAMPLE HEAT SET OFFSET BOOK TEST I>. - 20 LAB K39 75 GRAMS PER SQUARE METER G03 76 GRAMS; PER SQUARE METER

CODE MEAN DEV N.DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB HOO 1.480 -.230 *1.53 .207 1.38 1.280 -.221 -1.41 .120 .92 29A 0 L100

LI 05 1.337 -.373 -2.43 .219 1.46 1.100 -.401 -2.56 .126 .96 29A O LI 05

LI 18 1. 095 . 185 1.23 . 112 .75 1.691 • 190 1.21 .129 .98 29A 0 LI 18 L121 1.657 -.053 -.35 . 169 1. 13 1.387 -.114 -.73 .271 2.08 29D 0 LI 2

1

L122 1.949 .239 1.58 . 150 1.00 1.686 • 185 1. 18 .127 .97 29P 0 L 1 22

L141T 1.680 -.030 -.20 .177 1. 18 1.464 -.037 -.24 .108 .83 29D 0 L141T

LI 85 1.646 -.064 -.43 . 133 .89 1.510 .009 .06 .130 1.00 29C o LI 65 L255 1. 705 -.005 -.04 . 126 .84 1.445 -.056 -.36 .134 1.03 29P 0 L255

L27 8 1.715 .005 .03 . 099 .66 1.425 -.076 -.49 .141 1.08 29A o L278

L309 1. 766 .056 .37 . 199 1.33 1.722 .221 1.41 .177 1.36 29A 0 L309

L344 1.739 .029 . 19 . 166 1.10 1.564 .063 .40 .084 .64 29A 0 L344 L356 1. e46 . 136 .90 . 131 .87 1. 523 .022 . 14 .149 1.14 29A 0 L356

L442 1.802 . 092 .61 .096 .64 1.608 . 107 .68 .081 .62 29B 0 L442

L567 1. 822 .112 .74 e 132 .88 1. 573 .072 .46 .103 .79 29A 0 L567

L57 5 1.792 » 082 .54 . 136 .91 1.529 .027 .18 .094 .72 29A 0 L575

L592 1.568 142 -.94 . 162 1.08 1.407 -.094 -.60 .164 1.25 29D 0 LS92

L69 8 1.675 -.035 -.24 . 133 .89 1.605 . 104 .66 .083 .63 29C o L698

GR. MEAN - 1.710 PERCENT GRAND MEAN " 1.501 PERCENT TEST DETERMINATIONS r\> o SD MEANS - .151 PERCENT SD OF MEANS * . 157 PERCENT 17 LABS IN GRAND MEANS

AVERAGE SDR -

. 150 PERCENT AVERAGE SDR • .131 PERCENT

L242 2. 180 .470 3* 12 . 180 1. 20 2. 130 .629 4.01 .145 1.11 29R L242

L62 6 1.620 — . C90 -•60 e 158 1. 05 1.340 -.161 -1.03 .094 .72 29R L626 TOTAL NUMBER OF LABORATORIES REPORTING • 19

Best values: K39 1.7 + 0.3 percent

G03 1.5 + 0.3 percent

REPORT NO. 59 S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T29-1 TABLE 2 ELONGATION TO BREAK, PERCENT - PRINTING PAPER

TAPPI STANEARD T494 05-70, TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS COORDINATES AVG CODE F K39 G03 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT— -C0NDITI0NS

LI 05 0 1.337 1. 1 00 -.548 -.007 1.21 29A EL0NGATI0N, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

LI 00 0 1.480 1.280 -.319 .014 1. 15 29A EL0NGATICN, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L59 2 0 1.568 1.407 -.166 .038 1. 17 29D EL0NGATI0N, PRINTING PAPERS, LOAD CELL, 2-PIN STRAIN GAGE

L626 1.620 1.340 -. 179 -.046 .89 29R EL0NGATI0N, PRINTING PAPERS, PENDULUM, FLAT/FLAT JAWS

LI 85 0 1.646 1.510 -.038 .053 .94 29C EL0NGATI0N, PRINTING PAPERS, LOAD CELL, LINE/LINE JAWS

LI 2 1 0 1.657 1.387 -. 1 19 -.04 1 1.60 29D EL0NGATI0N, PRINTING PAPERS, LOAD CELL, 2-PIN STRAIN GAGE

L69 8 0 1.675 1.605 .051 .097 .76 29C EL0NGATI0N, PRINTING PAPERS. LOAD CELL, LINE/LINE JAWS

LI 4 IT 0 1.680 1.464 048 -.004 1.00 29D ELONGATION, PRINTING PAPERS, LOAD CELL, 2-PIN STRAIN GAGE

L255 0 1.705 1.445 044 -.035 .93 29P ELONGATION, PRINTING PAPERS, LOAD CELL, PATTERNED FLAT JAWS

L27 8 0 1.715 1. 425 -.052 -.056 .87 29 A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L34 4 0 1.739 1.564 .065 .022 .87 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L309 O 1.766 1.722 .198 .113 1.34 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L575 0 1.792 1. 529 .076 -.040 .82 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L442 O 1.802 1.608 . 141 .007 .63 29B ELONGATION, PR INTING PAPERS, LOAD CELL, LINE/FLAT JAWS

L567 0 1.822 1. 573 .129 -.031 .84 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L356 0 1.846 1.523 . 1 10 -.083 1.0 1 29 A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

LI 1 8 0 1.895 1.691 .265 -.003 .87 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

LI 22 0 1. 949 1.686 .298 -.045 .99 29P ELONGATION, PRINTING PAPERS, LOAD CELL, PATTERNED FLAT JAWS

L242 2. 180 2.130 .779 .094 1. 16 29R ELONGATION, PRINTING PAPERS, PENDULUM, FLAT/FLAT JAWS

GMEANS: 1.710 1.501 1.00 95* ELLIPSE: .591 . 148 WITH GAMMA » 46 DEGREES

38
PERCENT

ELONGATION TO BREAK , PRINTING PAPER

SAMPLE K39 =1.71 PERCENT

I I I I L SAMPLE G03 = 1 .50 PERCENTi i i i

o

CM

CD

0D

e'-

er)

LO

p-j + .X.* NOT IN GRAND MEANS

CD& ANALYSIS T29-1

LU

_J

Q_

CE

CO

O

J2_

O

O ©

O

O O

CD ©

CD

CM

O

O

C O

(D

CD

O

SAMPLE K39

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
I

REPORT NO. 59 S TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS T30-1 TABLE 1 FOLD ING ENDURANCE (MIT), DOUBLE FOLDS

TAPPI STANDARD T51 1 SU-69

APRIL 1979

LAB

SAMPLE

B88 HEAT SET OFFSET BOOK

88 GRAMS PER SQUARE METER

SAMPLE

A92 MOVE ENVELOPE PAPER

75 GRAMS PER SQUARE METER TEST D. - 15 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

L100M 33.5 •15.4 -.95 16.2 . 32 20.9 -9.6 -1.51 5.9 .57 30M 0 L100M

L100N 35.5 -13.5 -.83 14.2 .72 22.3 -8.2 -1.29 6.4 .62 30N 0 L100N

LI 05 49. 1 . 1 .01 20.6 1.05 25.9 -4.6 -.72 7.2 .70 30M 0 LI 05

LI 1 8 52. 1 3.2 . 19 16.0 .81 29.3 -1.3 -.20 1 1.0 1.07 30D 0 LI 18 LI 2 1 35.0 -14.0 -.86 10.6 .54 30.3 -.3 -.05 14.3 1.39 30M 0 L121

LI 22 71.4 22.4 1.38 56. 0 2.84 36.5 5.9 .92 13. 4 1.30 30M 0 LI 22

LI 24 37.9 -11.1 -.68 7.3 .37 27.5 -3. 1 -.48 7.2 .70 30N 0 L 1 24

LI 50 40.8 -8.2 -.50 1 8.3 .93 29.8 -.8 -. 12 9. 8 .95 30M 0 LI 50

LS 58 27.3 -21.7 -1.33 12.9 .65 20.0 -10.6 -1.65 10.0 .97 30N 0 LI 58

LI 59 68.3 19.4 1.19 1 1.3 .57 36.5 6.0 .93 1 1.9 1. 16 3 ON 0 LI 59

LI 62 25. 1 -23. e -1.46 12.3 .62 26.9 -3.6 -.57 13.2 1.28 3 0M 0 L162

LI 63 47.9 -1.0 -. 06 24.7 1. 25 26.9 -3.6 -.57 9.7 .94 30N 0 L163

LS 76 52.5 3.5 .21 19. 0 .96 43.2 12.6 1.98 21. 9 2. 13 3 ON • LI 76

LI 82M 62.5 13.5 .83 28. 5 1.44 38. 1 7.6 1. 19 17.0 1.65 30M 0 L182M

LI 85 72.0 23.0 1.41 38. 8 1.96 37.7 7.2 1. 12 10.0 .98 30N 0 LI 85

LI 9 0C 54.5 5.6 .34 13. 5 .68 36.3 5.7 .89 6.0 .58 SON 0 L190C

L212 52.9 4. 0 .24 7.9 .40 34.7 4. 1 .64 11.3 1.10 30M 0 L212

L22 3F 79,2 3 0.2 1.85 29.6 1.50 37.5 6.9 1.08 11.5 1.11 30M 0 L2 23F L230 41.4 -7.6 -.47 15.7 .80 31.3 .7 . 11 9.6 .94 30N 0 L230 L232 74.9 25. 9 1.59 28, 8 1. 46 41.7 11.2 1.7S 12.7 1.23 SON 0 L232 L236 46.7 -2.3 -. 14 15. 5 .79 31.7 1.1 . 17 11. 8 1.15 30N 0 L236

L238A 48. 1 -.e -.05 9.7 .49 27.7 -2.8 -.44 12. 5 1.22 3 ON 0 L238A

L23 8B 36.3 -12.7 -.78 10.3 .52 28.5 -2. 1 -.33 9.4 .92 30D e L238B

L24 3 76.8 27. 8 1.71 34. 9 1.77 33.3 2.7 .42 8.9 .87 30D 0 L243 L254 41.9 -7.0 -.43 37.2 1.88 23.7 -6. 8 - 1. 07 11.7 1.14 30M o L254

L262 36.5 -12.4 -.76 12.9 .65 26.3 -4.3 -.67 9.4 .91 30M o L262

L27 5 87.5 38.5 2.36 34. 1 1.73 37.5 7.0 1.09 18.3 1.77 30M 0 L275

L278 28.5 -20. 5 -1.26 1 1.6 .59 27.3 -3.3 -.52 7.8 .76 30C 0 L278

L279 38.8 -1 0.2 -.62 16.6 .64 28.3 -2.2 -. 35 13.4 1.30 30N 0 L279

L2 85A 39. 7 -9.2 -.57 16.6 .84 32.3 1.8 .28 8.7 .84 30N 0 L285A

L2 85B 31.5 -17.4 -1.07 15.6 .79 31. 1 .5 .08 9. 1 . 88 30N 0 L285B

L299 28.5 -20.4 -1.25 13.6 .69 21.5 -9. 1 -1.42 6.9 .67 30M 0 L299 L320 40.3 -8.7 -.53 23.6 1.20 25.2 -5.4 -. 84 10.5 1.02 30N 0 L320

L32 1 84.7 35.7 2.19 41.4 2. 10 36.7 6. 1 .96 8.9 . 86 SOM o L3 21 L326N 30.0 -19. 0 -1.16 18o 8 .95 24.8 -5. 8 -.90 9.6 .93 30N 0 L326N

L339 23.8 -25.2 -1.54 7.7 .39 17.5 -13. 1 -2. 05 4.9 .47 30N 0 L339 L376 37.9 -11.0 -.68 21.0 1.07 26.3 -4.2 -.66 8.0 .78 30N o L376

L388 53.7 4. 8 .29 21. 1 1.07 34.6 4.0 .63 10.6 1.03 30N 0 L388

L39 0 49.3 .4 .02 18.3 .92 31.5 .9 .14 8. 8 .86 SON 0 L390 L393 49. 1 . 1 .01 14. 1 .72 24.3 -6.2 -.97 4.6 .44 30M 0 L393 L396M 61.5 12.6 .77 21.0 1. 06 43.0 12.4 1.95 17.9 1.74 3 ON 0 L396M

L56 5 58. 3 9.3 .57 24. 1 1. 22 40.0 9.4 1. 48 12.6 1.22 3 ON 0 L565 L567 45.3 -3.6 -.22 2 0. 1 1. 02 31.3 .8 . 12 13.4 1 . 30 3 ON 0 L567 L589 5So 3 6.4 .39 16.9 . 86 35.3 4.7 .74 11.2 1.09 30N 0 L589 L599 55.9 7.0 .43 2 0.5 1.04 32.0 1.4 .23 11.9 1. 16 30C 0 L599

L622 108.3 59. 3 3.64 68. 5 3.47 41.2 10.6 1.66 16.8 1.63 30M X L622

L67 0 53.3 4.3 .26 7.9 .40 20.8 -9.8 - 1.53 4.3 .42 30N 0 L670

GR. MEAN • SD MEANS - 49.0 DOUBLE FOLDS

16.3 DOUBLE FOLDS

AVERAGE SDR

GRAND MEAN * SD OF MEANS * 19.7 DOUBLE FOLDS

30.6 DOUBLE FOLDS

6.4 DOUBLE FOLDS AVERAGE SDR •

TEST DETERMINATIONS - 15 46 LABS IN GRAND MEANS

,3 DOUBLE FOLDS

L182S 50© 7 1.8 . 1 1 27. 1 1.37 36.3 5. 8 .90 12.3 1. 19 30S L182S

LI 9 OD 15©6 -33.4 -2.05 6.9 .35 30.4 -.2 -. 02 1 1.6 1.13 30S L190D

L280 39© 6 -9.4 -.58 23. 1 1. 17 31.7 1.1 . 17 11.4 1.11 30E * L280 L326S 25 © 6 -23.2 -1.42 5.4 .27 23.7 -6. 8 - 1. 07 8.3 .81 30S L3 26S L396S 13. 1 -35.9 -2.20 5.4 .27 24.3 -6.2 -.97 15.7 1.53 30T L396S

TOTAL NUMBER OF LABORATORIES REPORTING - Best values: B88 50 double folds

A92 30 double folds

The following laboratories were omitted from the grand means because of extreme test results: 105, 190C, 232, 622.

The ISO ( IotarnatloDtl 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

•a in the past. Please see page 43 of this report for a demonstration of this proposal.

40
REPORT NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T30-1 TABLE 2 FOLDING ENDURANCE (MIT), DOUBLE FOLDS

TAPPI STANDARD T51 1 SU-69 LAB MEANS COORDINATES AVG

CODE F E88 A9 2 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT-—CONDITIONS

L39 6S 13. 1 24.3 -36.2 4.6 .90 30T FOLDING ENDURANCE, SCHOPPEH, TMI L190D 15.6 30.4 -31.9 9.7 .74 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

L339 0 23.8 17.5 -27.9 -5. 1 .43 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 6 2 0 25. 1 26.9 -23.9 3.6 .95 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN L326S 25.8 23.7 -24.2 .3 .54 3 OS FOLDING ENDURANCE, SCHOPPER, LEIPZIG

L 1 5 8 0 27.3 20.0 -23.9 -3.7 .81 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L27 8 0 26.5 27.3 -20.6 2.9 .67 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

L299 0 28.5 21.3 -22.2 -2.7 .68 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN L326N 0 30.0 24. 8 -19.8 . 1 .94 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L28 5B 0 31.5 31. 1 -16.5 5.6 .84 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L100M 0 33.5 20.9 -17.6 -4.6 .69 30 M FOLDING ENDURANCE, MIT. WITH CENTRIFUGAL FAN

LI 2 1 0 35.0 30.3 -13.4 3. e .96 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

LI 0 ON 0 35.5 22.3 -15.3 -3.9 .67 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L238B 0 36.3 28.5 -12.8 1.7 .72 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HEATING

L262 0 36. 5 26.3 -13.2 -.4 .78 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

LI 2

4

0 37.9 27.5 -11.5 . 3 .54 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L376 0 37.9 26.3 -11.8 -. e .92 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L279 0 38. 8 28.3 -10.4 .9 1.07 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L2 8 0 39o 6 31.7 -8.6 3.8 1. 14 30 K FOLDING ENDURANCE, KOHLER-MOLIN

L2 8 5

A

0 39.7 32.3 -8.3 4.4 .84 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L32 0 0 40.3 25.2 -9.9 -2.6 1. 11 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 50 0 4 C. 8 29.8 -8.0 .94 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L23 0 0 4 1.4 31.3 -7.0 2.9 .87 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L25 4 0 4 1.9 23. 7 -8.7 -4.4 1.51 3 0M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L567 0 45.3 31.3 -3.3 1.8 1.16 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L236 0 46.7 31.7 -1.9 1.7 .97 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 63 0 47. 9 26.9 -2.1 -3.2 1. 10 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L2 38A 0 48. 1 27.7 -1.6 -2.5 .85 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L393 0 49. 1 24.3 -1.8 -6. 0 .58 3 0M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

LI 0

5

0 49. 1 25.5 -1.3 -4.4 .87 30M FOLDING ENDURANCE, MIT. WITH CENTRIFUGAL FAN

L39 0 0 49.3 31.5 .6 .6 .89 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN L182S 5C.7 36.3 3.4 5. 0 1.28 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

LI 1 8 0 52. 1 29.3 2.6 -2.2 .94 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HEATING

Li 76 * 52.5 43.2 7.1 11.1 1. 54 3 ON FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L21 2 0 52.9 34.7 5.0 2.8 .75 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L67 0 0 53. 3 20.8 1.2 -10.6 .41 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L38 8 0 53.7 34.6 5.7 2.5 1.05 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI90C 0 54.5 36.3 7.0 3. 8 .63 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L56 9 0 55. 3 35.3 7.5 2.6 .97 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L599 0 55.9 32.0 7. 1 -.7 1. 10 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

L56 5 0 58.3 40.0 11.7 6. 3 1.22 30 N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L396M 0 61.5 43.0 15.7 8.2 1.40 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 82M 0 62.5 33. 1 15. 1 3.3 1.55 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

Li 59 0 68. 3 36.5 20.3 .0 .87 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 22 0 7 1.4 36.5 23,2 -1.0 2.07 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L I 8 5 0 72.0 37.7 24. 1 . 1 1.47 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L232 0 74.9 41.7 28.0 3.0 1.35 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L243 0 76.8 33.3 27.4 -5.6 1.32 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HEATING

L223F 0 79.2 37.5 30.9 -2.3 1.31 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L32 1 0 84.7 36.7 35.9 -4,7 1.48 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L27 5 0 87.5 37.5 38.8 -4.7 1.75 30M FOLDING ENDURANCE, MIT. WITH CENTRIFUGAL FAN

L622 X 106.3 41.2 55.8 -7.3 2.55 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

GMEANS

49.0 30.6 1.00 95* ELLIPSE: 43.6 10.6 WITH GAMMA - 17 DEGREES

41
DOUBLE

FOLDS

FOLDING ENDURANCE ( MIT

)

SAMPLE B88 = 49. DOUBLE FOLDS SAMPLE A92 = 31. DOUBLE FOLDS

DOUBLE FOLDS

42
EEP0RT N0. 5SS TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T30-2 TABLE 1 FOLDING ENDURANCE ( MIT

DATA IS LOGt BASE 10) OF THE DOUBLE FOLD MEASUREMENT

SAMPLE BEAT SET OFFSET BOOK SAMPLE WOVE ENVELOPE PAPER TEST D. - 15 LAB Bse 88 GRAMS PEE SQUARE METER A92 75 GRAMS PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI 0 0M 1.48 -.15 -.98 .20 1. 13 1.30 -.15 -1.64 . 13 .85 30M 0 L100M

L100N 1.52 -.12 -.74 .17 .95 1.33 -.12 -1.34 .12 .84 30N 0 L100N

L 1 05 1.65 .01 .07 .22 1.24 1.40 -.06 -.61 . 1 1 .75 30M 0 LI 05

LI 16 1.70 .06 .41 .13 .73 1.44 -.02 -.17 .15 1.02 30D 0 LI 18 L121 1.52 -.11 -.70 .14 .75 1.44 -.02 -.19 .19 1. 32 30M o LI 2

L122 1. 75 .1 1 .71 .31 1.72 1.54 .08 .85 .15 1.02 30M 0 LI 22

LI 24 1.57 -.06 -.41 .08 .45 1.42 -.03 -.35 .12 .79 30N 0 LI 24

LI 50 1. 57 -.06 -.41 .19 1.06 1.45 -.00 -.04 . 14 .92 30M e LI 50

LI 58 1.39 -.24 -1.56 .20 1. 13 1.26 -.20 -2. 10 .18 1.23 3 ON 0 L 1 58

LI 59 1. 83 .19 1.24 .07 .37 1. 54 .08 .91 .14 .95 3 ON o LI 59

LI 62 1.35 -.28 -1.80 .21 1. 16 1.39 -.07 -.77 .20 1.36 30M 6 L162

LI 63 1.63 -.01 -.06 .23 1. 26 1.41 -.05 -.55 . 15 .99 30N O L163

LI 76 1. 70 .06 .40 .14 .78 1.59 . 13 1.41 .21 1.40 30N O LI 76 L182M 1.76 .13 .81 .17 .93 1. 54 .09 .92 . 19 1.28 30M 0 L182M

LI 85 i.ei .10 1,12 .20 1.10 1.56 .10 1. 12 .12 .81 30N 0 LI 85

L190C 1.72 .09 .57 .11 .59 1,55 .10 1.03 .08 .52 30N e L190C

L212 1.72 .ce .54 .06 .35 1.52 .06 .67 .14 .92 30M 0 L212 L223F 1.87 .24 1.53 .14 .80 1. 55 .10 1.04 .14 .94 30M 0 L223F

L230 1.59 -.05 -.30 .17 .92 1.47 .02 . 18 .14 .96 30N 0 L230

L232 1.84 .21 1.33 .17 .94 1. 60 .14 1.54 . 14 .94 3 ON 0 L232 L236 1.65 .01 .08 .14 .79 1.47 .02 . 16 .16 1.09 30N 6 L236

L238A 1.67 .04 .25 .08 .47 1.41 -.05 -.49 . 16 1.08 30N 0 L238A

L236B 1.54 -.09 -.58 .12 .68 1.43 -.03 -.33 .17 1.16 30D 0 L238B

L243 1.85 .21 1.36 .19 1.03 1.51 .05 .53 .12 .83 30D e L243

L254 1.44 -.19 -1.21 .43 2.39 1.33 -. 13 - 1.40 .21 1.45 30M 0 L254 L262 1.54 -.10 -.63 .16 .88 1.40 -.06 -.66 . 14 .98 30M 0 L262

L27 5 1.91 .27 1.74 .18 1.02 1.53 .07 .80 .20 1.34 30M 0 L275

L27 8 1.43 -.2 1 -1.34 .16 .88 1.42 -.04 -.41 .12 .84 30C 0 L278

L279 1.54 -.09 -.58 .22 1. 19 1.41 -.04 -.47 .18 1.25 30N 0 L279 L285A 1.56 -.0 8 -.48 .20 1. 09 1.49 .04 .39 .12 . 83 30N 0 L285A

L285B 1.44 -.20 -1.26 .26 1.43 1.48 .02 .21 .12 .79 30N 0 L285B

L29 9 1.41 -.23 -1.44 .21 1. 15 1.31 -.15 -1.59 . 15 .99 30M 0 L299

L320 1.53 -.10 -.66 .27 1.46 1.37 -.09 -. 95 .17 1.16 3 ON 0 L3 20 L321 1.89 .26 1.64 .17 .95 1. 55 .09 1.02 .11 .73 30M 0 L321

L32 6N 1.41 -.23 -1.46 .25 1. 39 1.37 -.09 -. 96 .15 1.03 30N 0 L326N

L339 1.35 -.28 -1.79 . 14 . 80 1.23 -.23 -2.48 .12 .82 30N 0 L339

L37 6 1.53 -.10 -.65 .20 1. 1 1 1.40 -.06 -.61 ,14 .95 30N 0 L376

L38 8 1.70 .06 .41 .17 .94 1.52 .06 .64 . 15 1.01 30N 0 L388

L39 0 1.66 .03 . 18 .17 .96 1.48 .02 .26 .13 . 86 30N 0 L390 L39 3 1.67 .04 .24 .14 .75 1.38 -.08 -.84 .08 .56 30M 0 L393 L396M 1.76 .13 .82 .16 .69 1.60 .14 1. 54 .17 1. 18 30N 0 L396M

L56 5 1.73 .10 .62 .18 .99 1.58 . 12 1.34 .14 .92 30N 0 L565

L567 1.62 -.02 -.10 .19 1.04 1.46 .00 .02 . 19 1.27 30N 0 L567 L589 1.72 .09 .55 .15 .83 1.53 .07 .76 .13 .91 30N 0 L589

L59 9 1.72 .09 .55 .16 .87 1.48 .02 .24 .15 1.02 30C 0 L599

L622 1.94 .31 1.98 .31 1.68 1.58 .13 1.36 .17 1.17 30M 0 L6 22 L670 1.72 .09 .56 .06 .35 1.31 -.15 -1.59 .09 .62 30N X L670

GR. MEAN - 1.63 L0G( 10 ) FOLD GRAND MEAN - 1.46 L0G( 10 ) FOLD TEST DETERMINATIONS - 15 SD MEANS - . 16 L6G( 10

FOLD SD OF MEANS - .09 LflG( 10 ) FOLD 46 LABS IN GRAND MEANS

AVERAGE SDR .18 L0G( 10 ) FOLD AVERAGE SDR - . 15 L6G( 10 ) FOLD

L182S 1.66 .03 .17 .19 1.05 1.54 .08 .84 .16 1.08 30S L182S

L190D 1. 15 -.49 -3.11 .21 1.17 1.45 -.01 -.07 .18 1.21 30S L190D

L280 1.54 -.10 -.63 .24 1.31 1.48 .02 .23 .14 .93 30K L280 L326S 1.40 -.23 -1.48 .09 .48 1.35 -.11 -1.15 .16 1.05 30S L326S

L396S 1.08 -.55 -3.54 .18 1.01 1.31 -.15 -1.58 .27 1.80 30T L396S

TOTAL NUMBER OF LABORATORIES REPORTING • 52 The ISO ( Iattrnotional Standards Organization) ia pro- posing that MIT folding endurance bo reported as the Logarithm (to the base 10) of the double fold instead

of the double fold as in the past*

Raw data

(Folding number

in double folds)

log ( base 10)

of raw data

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.

207

166

151 332

260

137

199 230

2. 32 2.22

2. 18 2,52

2.41

2. 14 2.30

2.36

210 2.31 mean of logs

"Folding endurance"

mean of raw data
REPORT N6. 59

S

TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS *130-2 TABLE 2 FOLDING ENDURANCE (MIT 5 DATA IS LOG< BASE 10) OF TUB DOUBLE FOLD MEASUREMENT

LAB MEANS COORDINATES

CODE F B66 A9 2 MAJOR MINOR L396S loOS 1.31 -.56 .13

LI 9 OD 1.15 1.45 -.43 .22

LI 62 0 1.35 1.39 -.28 .07

L33 9 0 1.35 1. 23 -.36 -.07

LI 58 0 1.39 1.26 -.31 — .06 L326S . 1.40 1.35 -.25 .02 L326N 0 1.41 1.37 -.24 .03 L299 0 1.41 1.31 -.27 -.02

L27 8 a 1.43 1.42 -.20 .07 L285B a 1.44 1. 48 -. 16 .11 L2S4 a 1.44 1.33 -.23 -.02

LI 0 OM a 1.48 1.30 -.21 06

LI 0 ON 0 1.52 1.33 16 -.05

LI 2 1 a 1.52 1.44 -.11 .04

L32 0 a 1.53 1.37 -. 13 -.03 L376 a 1.53 1.40 12 -.00

L280 1.54 1. 48 08 .07 L262 a 1 . 54 1.40 12 -.01 L23 8B a 1.54 1.43 -.10 .02 L279 0 1.54 1.41 10 .00 L285A a 1.56 1.49 -.05 .07

LI 24 a 1.57 1. 42 -.07 .00

LI 50 a 1.57 1.45 -.06 .03

L23 0 a 1.59 1.47 -a 03 .04 L567 a 1.62 1.46 -.01 .01 L163 a 1.63 1.41 -.03 -.04

LI 0 5 e 1.6 5 1.40 -.02 -.06 L236 a 1.65 1.47 .02 .01 L182S * 1.66 1.54 . 06 .06

L39 0 a 1 .66 1.48 .04 .01 L393 a 1.67 1.38 -. 00 -.09

L23 8A a 1.67 1.41 .01 -.06

LI 76 0 1.70 1.59 . 12 .09

LI 1 8 a 1.70 1.44 . 05 -.04 L388 a 1.70 1.52 .09 .02 L212 e 1.72 1.52 . 10 .02 L599 a 1.72 1. 48 .09 -.02

L589 a 1.72 1.53 . 11 .02 L67 0 X 1.72 1.31 .01 -.17

L19 0C a 1.72 1.55 . 12 .04

L56 5 a 1.73 1.58 . 14 .06

LI 22 a 1.75 1.54 . 14 .02 L182M a 1.76 1.54 . 15 .01 L396M a 1.76 1.60 . 18 .07

LI 85 a 1.61 1.56 .20 .01

LI 59 a 1.83 1.54 .21 -a 0 2 L232 0 1.84 1.60 .25 . 03 L243 a 1.85 1.51 .21 -.06 L223F e 1.87 1.55 .26 -.03

L32 1 a 1.89 1. 55 .27 -.04 L275 a 1.91 1.53 .28 -.06

L62 2 a 1.94 1. 58 .33 -. 04 GMEANS % 1.63 1. 46 95* ELLIPSE: .45 .12

AVG

H. SDR VAR PROPERTY TEST

1.40 30 T FOLDING ENDURANCE,

1.19 30S FOLDING ENDURANCE,

1.26 30M FOLDING ENDURANCE,

.81 30N FOLDING ENDURANCE,

1. 18 30N FOLDING ENDURANCE,

.77 30S FOLDING ENDURANCE,

1.21 30N FOLDING ENDURANCE,

1.07 30M FOLDING ENDURANCE,

.86 30C FOLDING ENDURANCE,

1.11 30N FOLDING ENDURANCE,

1.92 30 M FOLDING ENDURANCE,

.99 30M FOLDING ENDURANCE,

.89 30N FOLDING ENDURANCE,

1.03 30M FOLDING ENDURANCE,

1.31 3 ON FOLDING ENDURANCE,

1.03 30N FOLDING ENDURANCE,

1.12 30K FOLDING ENDURANCE,

.93 30M FOLDING ENDURANCE,

.92 30D FOLDING ENDURANCE,

1.22 30N FOLDING ENDURANCE,

.96 30 N FOLDING ENDURANCE,

.62 30N FOLDING ENDURANCE,

.99 30M FOLDING ENDURANCE,

.94 30N FOLDING ENDURANCE,

1. 15 30N FOLDING ENDURANCE,

1. 13 30N FOLDING ENDURANCE,

1.00 3 OM FOLDING ENDURANCE,

.94 30N FOLDING ENDURANCE,

1.07 30S FOLDING ENDURANCE,

.91 30N FOLDING ENDURANCE,

.65 30M FOLDING ENDURANCE,

.77 30N FOLDING ENDURANCE,

1.09 30N FOLDING ENDURANCE,

.87 30D FOLDING ENDURANCE,

.97 30N FOLDING ENDURANCE,

.63 30 M FOLDING ENDURANCE,

.94 30C FOLDING ENDURANCE,

.87 30N FOLDING ENDURANCE,

.48 30N FOLDING ENDURANCE,

.55 30N FOLDING ENDURANCE,

.96 30 N FOLDING ENDURANCE,

1.37 30M FOLDING ENDURANCE,

1. 10 30M FOLDING ENDURANCE,

1. 03 30N FOLDING ENDURANCE,

.96 3 ON FOLDING ENDURANCE,

.66 30 N FOLDING ENDURANCE,

.94 30N FOLDING ENDURANCE,

.93 30D FOLDING ENDURANCE,

.87 30M FOLDING ENDURANCE,

.84 30M FOLDING ENDURANCE,

1.18 30 M FOLDING ENDURANCE,

1.43 30M FOLDING ENDURANCE,

1 o 00 WITH GAMMA - 28 DEGREES

INSTRUMENT CONDITIONS

SCHOPPER, TMI SCHOPPER, LEIPZIG

MIT, WITH CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

SCHOPPER, LEIPZIG

MIT, NO CENTRIFUGAL FAN

MIT. WITH CENTRIFUGAL FAN

MIT, CIRCULATING FAN IN CEILING

MIT, NO CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN EOHLER-MOLIN

MIT, WITH CENTRIFUGAL FAN

MIT, MODIFIED DRIVE TO REDUCE HEATING

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

SCHOPPER, LEIPZIG

MIT, NO CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, MODIFIED DRIVE TO REDUCE HEATING

MIT, NO CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, CIRCULATING FAN IN CEILING

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, NO CENTRIFUGAL FAN

MIT, MODIFIED DRIVE TO REDUCE HEATING

MIT, WITH CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

MIT, WITH CENTRIFUGAL FAN

44
0101 (

01)001

FOLDING ENDURANCE ( NIT )

SAMPLE B88 = 1.63 L0GUO) F0LD SAMPLE A92 = 1.46 LOGC 1 0 ) E0LD

L0G(1O) E0LD

45
REPORT K0o 59 S TAP PI COLLABORATIVE REFERENCE PROGRAM APRIL 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)

LAB

SAMPLE

K4 1 PRINTING

60 GRAMS PER SQUARE METER

SAMPLE

J26 PRINTING

103 GRAMS PER SQUARE METER TEST D. - 10 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB L100 132.0 22.8 1.75 6.3 .88 268.0 24.0 1.45 12.7 1.04 35G 6 L100

LI 1 8 108.4 -.8 -.06 4.8 .68 224.2 -19.8 -1. 19 10.0 .61 35G 6 LI 18 LI 21 118.0 8. 8 .67 9.2 1.28 247.0 3.0 . 18 29. 8 2.43 35G 0 L121

LI 22 99.9 -9.3 -.72 8. 8 1.22 209.8 -34.2 -20 06 8.6 .70 35G 0 LI 22

LI 3 2 126.0 16. 6 1.29 9. 1 1.27 245o 0 1.0 . 06 10. 8 .88 350 0 LI 32

LI 39 108.9 -.3 -.02 3.6 .50 233.8 -10.2 -.61 15.6 1. 27 3 5G 0 L139

Li 4 8 110.2 1.0 .08 1.7 .24 243.6 -.4 -. 02 9.7 .79 35G 0 L 1 48

LI 53 105.9 -3. 3 -.26 7.4 1.03 243.0 -1.0 -.06 3.7 .30 35G 0 LI 53

LI 59 93.9 -15.3 -1.18 10.5 1.46 237.3 -6.6 -.40 28.5 2.32 35G 0 LI 59

L I 62 87.7 -21.5 -1.65 6.0 .84 225. 1 -18.9 -1.13 7.6 .62 35G 0 LI 62 L163 70.5 -38.7 -2.97 15. 2 2. 12 229.5 -14.5 -.87 30.3 2.47 35G * L163

L 1 83 117.2 8.0 .61 5.6 .79 258. 1 14. 1 .85 14.3 1.17 3 5G 0 LI 83

LI 9 0C 69.7 -39. 5 -3. 04 8.9 1.24 161.2 -82.8 -4.98 9.4 .76 35G * L 1 90C

L * 9 5 125.6 16.4 1.26 16.2 2.26 237.8 -6. 1 -.37 11.8 .97 35G 0 LI 95

L2 1 2 115.2 6. 0 .46 5. 1 .72 269.8 25. 8 1.55 9.7 .79 35G 0 L21

2

L213 112.6 3.4 .26 3.9 .54 232.0 » OJ • o -.72 13.2 1.08 35G 0 L213

L223 105. 1 -4. 1 -.32 4. 1 .57 239.9 -4. 1 -.24 5.4 .44 35G 0 L223

L232 118.4 9.2 .71 10.4 1.45 263.4 19.4 1. 17 10. 1 .83 35G 0 L232 L236 54.0 -55.2 -4.24 12.6 1.77 159.5 -84.5 -5.08 9.0 .73 35G * L236

L24 1 118.3 9. 1 .70 7. 1 .99 255.3 11.3 ,68 10.5 .86 35G 0 L241 L249 113.4 4.2 .32 8.4 1. 17 255.3 11.3 .68 12.8 1.05 35G 0 L249

L2S4 109. 4 .2 .01 7.8 1.10 217. 1 -26.9 -1.62 11.5 .94 35G 0 L254

L26 0 104.9 -4.3 -.33 5. 1 .71 251.3 7.3 .44 6. 8 .56 35G 0 L260

L26 8 96.4 -12.8 -.98 3.2 .45 201.4 -42.6 -2.56 8.5 .70 35G e L268

L285 67.4 -41.8 -3.21 6.2 .87 182.4 -61.6 -3.70 10. 1 .82 350 X L285

L291 115. 7 6.5 .50 10.0 1. 39 256. 1 12. 1 .73 16.7 1.36 35G 0 L291 L308 92.6 -16.7 -1.28 1 1. 5 1.60 238. 1 -5.9 -.35 12. 2 1.00 35G 0 L308

L321 117.8 8. 6 .66 9.5 1.33 234.9 -9.1 -.55 7.4 .60 35G 0 L321 L356 83.5 -25.7 -1.98 6.6 .91 240.6 -3.3 -.20 13.5 1.10 35G 0 L356

L376 1 18.6 9.4 .72 4.9 .68 257.5 13.5 .81 8.6 .70 35G 0 L376 L382 114.0 4.8 .37 6.9 .96 254.9 10.9 .66 12.9 1.05 35G 0 L382

L39 0 102.2 -7.0 -.54 8.6 1.21 241.8 -2.2 -.13 10.9 .89 35G 0 L390 L396 109.7 • 4 .03 3. 3 .46 245.9 2.0 .12 11.6 .95 35G 0 L396

L567 133.0 23. 8 1.83 12.5 1.75 259. 0 15.0 .90 16.0 1.30 35G 0 L567

L57 1 111.5 2.3 .18 4.7 .66 281.0 37,0 2. 23 24.2 1.98 35G 0 L571

L60 0 1 13.0 3. 8 .29 8.5 1. 19 247.5 3.5 .21 9.3 .76 35G 0 L6 00 L648 104.3 -4.9 -.38 6.2 .87 250. 8 6.9 .41 7.8 .64 35G 0 L648

L65 0 108.9 -.3 -.02 6. 0 .84 242.8 -1.2 -. 07 14.0 1. 14 35G 0 L650

L693 71.2 -3 8. 0 -2.92 7.0 .97 160.7 -83.3 -5. 01 9.7 .79 35G * L693

GR. MEAN 109.2 GURLEY UNITS GRAND MEAN * 244.0 GURLEY UNITS TEST' DETERMINATIONS " 10 SD MEANS - 13.

0

GURLEY UNITS SD 0F MEANS - 16.6 GURLEY UNITS 35 LABS IN GRAND MEANS AVERAGE SDR - 7.2 GURLEY UNITS AVERAGE SDR • 12.3 GURLEY UNITS TOTAL NUMBER OF LABORATORIES REPORTING 39

Best values: K41 110 + 20 Gurley units J26 240 + 30 Gurley units

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

693.

Data from the following laboratories appear to be

off by a multiplicative factor: 190C.

46
REPORT NO. 59 fi TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS 135- 1 TABLE 2 GURLEY STIFFNESS

RESULTS EXPRESSED IN STANDARD GURLEY UNITS; MILLIGRAMS FOR A 1X3 INCH SPECIMEN (ACTUAL LENGTH 3.5 INCHES)

LAB MEANS COORDINATES AVO C0DE F K41 J26 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST INSTRUMENT—-CONDITIONS

L236 ft 54.0 159.5 -100.9 1.7 1.25 35G STIFFNESS, GURLEY ( UNITS; MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

L285 X 67.4 182.4 -74.4 2.6 . 85 35G STIFFNESS, GURLEY ( UNITS; MG/1X3 -ACTUALLY 3.5- TEST PIECE)

L190C ft 69.7 161.2 -91.1 -10.7 1.00 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

LI 63 * 70.5 229.5 -32.9 25. 1 2.30 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PI ECE

)

L693 ft 71.2 160.7 -90.7 -12. 2 .88 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE)

L356 0 83.5 240.6 -16.5 20.0 1.01 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE)

LI 62 6 87.7 225. 1 -27.4 8. 2 .73 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L30 8 e 92.6 238. 1 -13. 8 11.0 1.30 35G STIFFNESS. GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

LI 59 0 93.9 237.3 -13.8 9.4 1.89 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

L268 0 96.4 20 1.4 -42.9 -1 1. 8 .57 35G STIFFNESS. GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

L 1 22 0 59.9 209.8 -33.9 -10.3 .96 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

L39 0 0 102.2 241.8 -5.6 4.7 1.05 35G STIFFNESS, GURLEY < UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L64 8 6 104.3 250.8 3.2 7.8 .75 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

L26 0 0 104.9 251.3 3.9 7.6 .63 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE ) L223 0 105. 1 239.9 -5.6 1.3 .51 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE)

Li 53 0 105.9 243.0 -2.6 2.3 .67 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

LI 1 8 6 108.4 224. 2 -17.2 -9.8 .74 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

L650 0 108.9 242.8 -1.2 -.4 .99 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

Li 3

9

0 108.9 233. 8 -8.8 -5. 1 .89 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE)

L254 0 105.4 217. 1 -22.6 -14.5 1.02 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

L396 0 105.7 245.5 1.9 .7 .70 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

LI 4 8 0 110.2 243.6 .2 -1.0 .51 35G STIFFNESS, GURLEY < UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

L57 I 0 1 1 1.5 281.0 32.6 17.8 1.32 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L213 0 1 12. 6 232.0 -8.3 -9.2 .81 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L600 0 113.0 247.5 5.0 -1.3 © 97 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L249 0 1 13.4 255.3 11.8 2.5 1.11 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L382 0 1 14.0 254.9 11.8 1. 8 1.00 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L21 2 0 1 15.2 269.8 25.0 8.7 .75 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L291 0 1 15.7 256. 1 13.7 1.0 1.38 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

Li 83 0 117.2 258. 1 16.2 .8 .98 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L321 0 117.8 234.9 -3. 1 -12. 1 .97 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE)

Li 2 i 0 118.0 247.0 7.2 -5.8 1.86 35G STIFFNESS. GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L24 i 0 1 18.3 255.3 14.4 -1.6 .92 35G STIFFNESS. GURLEY < UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

L232 0 118.4 263. 4 21.3 2.6 1.14 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L376 0 118.6 257.5 16.5 -.7 .69 35G STIFFNESS, GURLEY < UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L195 0 125.6 237.8 3.5 -17. 1 1.61 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L 132 0 126.0 24 5.0 9.8 -13.7 1.07 35G STIFFNESS. GURLEY < UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE)

L100 0 132.0 268.0 32.5 -6.5 .96 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE

)

L567 0 133.0 259.0 25.4 -12. 1 1.52 35G STIFFNESS, GURLEY ( UNITS: MG/ 1X3 -ACTUALLY 3.5- TEST PIECE) GMEANS

109.2 244.0 1.00 95* ELLIPSE: • * OO 25.9 WITH GAMMA - 57 DEGREES
GURLEY

UNITS

190

200

210

220

230

240

250

260

270

280

290

300

STIFFNESS, GURLEY

SAMPLE K41 = 109. GURLEY UNITS SAMPLE J26 = 244. GURLEY UNITS

48
REP0RT Ne. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS 136-1 TABLE 1 TABER STIFFNESS

TAPPI STANDARD 1489 OS-76, RESULTS EXPRESSED IN GRAM CENTIMETERS

LAB SAMPLEA77 205 GRAMS

INDEX

PER SGUARE METER

SAMPLE

J70 85 GRAMS PRINTING1 PER SQUARE METER

TEST D. * 10 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI OTA 28.31 .67 .27 1.52 .99 7.33 1.17 1.09 .25 .64 36T 0 L107A

LI 22 26.46 -1.18 -.48 1.23 .80 6. 86 .70 .65 .32 .81 36T 0 L122

LI 23 26.80 -.84 -.34 1.81 1. 1 8 5.90 -.26 -. 24 .68 2.22 36T 0 L 1 23

LI 26 27. 15 -.49 -.20 1.34 .87 4.42 -1.74 -1.63 .17 .43 36T 0 LI 26

LI 50 27.60 -.04 -.02 2.07 1.35 5.90 -. 26 -.24 .74 1.87 36T 0 LI 50

LI 58 3.12 -24.52 -9.86 .13 .09 50.47 44.31 4 1.33 3.39 8.59 36T 0 L156

LI 63 19.55 -8.09 -3.25 2. 19 1. 43 4.30 -1.86 -1.74 .35 .89 36T « L163

L173B 27.44 -.20 -.08 1.71 1. 11 6.62 .46 .43 .26 .66 36T 0 L173B

LI 82 27.63 -.01 -.01 1.42 .92 6.09 -.07 -.07 .47 1.19 36T 0 L182

L207 27.60 -.04 -.02 1.18 .77 7.44 1.28 1.20 .27 .67 36T 0 L207

L212 26.65 -.99 -.40 2.64 1.72 5. 94 -.22 -.21 .10 .25 36T 0 L2 12 L228 27.73 .09 .03 1.60 1.04 4.73 -1.43 -1.33 .17 .43 36T 0 L228

L230 35.20 7.56 3.04 2.20 1.44 8.60 2.44 2. 28 1.35 3.42 36T « L230

L236 27.es .24 .09 1.26 .82 5.01 -1.15 -1.07 .17 .43 36T 0 L236

L24 2 30.84 3.20 1.29 1.36 .89 7.98 1.82 1.70 1.04 2.63 36T 0 L242 L243 27.30 -.34 -. 14 1.23 .80 6,38 .22 .20 .18 .46 36T 0 L243

L260 27.75 .11 .04 .59 .38 6.25 .09 .08 .26 .67 36T 0 L260

L262 28.35 .71 .28 1.20 .79 7.05 .89 .83 .37 .94 36T 0 L262

L268 28.90 1.26 .51 .94 .61 6.30 .14 . 13 .35 .89 36T 0 L268

L281 28.64 1.00 .40 1.79 1. 17 6. 59 .43 .41 .27 .69 36T 0 L281 L290 30.40 2.76 1.11 1.71 1. 12 7.11 .95 .89 .82 2.08 36T 0 L29C L318 26.30 -1.34 -.54 1.76 1. 15 5. es -.31 -.29 .38 .96 36T 0 L318

L321 22.95 -4.69 >1.89 2.86 1.87 5.09 -1.07 -1.00 .67 1.70 36T 0 L321 L324 27.79 .IS .06 .98 .64 4.93 -1.23 -l. 15 .12 .29 36T 0 L324 L339 28.30 .66 .26 .75 .49 4.43 -1.73 - 1.61 .18 .45 36T 0 L339

L368 42. 15 14.51 5.83 2.00 1.31 25.50 19.34 16.04 1.31 3.33 36T 0 L388

L442 27.71 .07 .03 1.2S .81 6.79 .63 .59 .31 .79 36T 0 L442

L570 28.00 .36 .14 1.56 1.02 7.00 .84 .78 .82 2.07 36T 0 L5 70 L580 27. 70 .06 .02 .82 .54 6.10 -.06 -. 06 .32 .80 36T 0 L580

L651 28. 10 .46 .16 3.28 2. 14 5.60 -.56 -.52 .52 1.31 36T 0 L6 51 L69 2 26.63 -1.0 1 -.41 1.50 .98 6.04 -.12 -.11 .26 .66 36T 0 L6 92

GR, MEAN - 27,64 TABES UNITS

SD MEANS • 2,49 TABER UNITS AVERAGE SDR *

GRAND MEAN • 6. 16 TABER UNITS

SD OF MEANS • 1,07 TABER UNITS

1.53 TABER UNITS AVERAGE

TEST DETERMINATIONS * 10 29 LABS IN GRAND MEANS

SDR - .39 TABER UNITS

L250 25.04 -2.60 -1.05 1.54 1.01 T0TAL NUMBER OF LABORATORIES REPORTING " 32

6.51 .35 .33 .40 1.02 36U L250

Best values: A77 27.7 +4.0 Taber units

A70 6.1 +1.7 Taber units

The following laboratories were omitted from the grand means because of extreme test results: 158,

388.

49
REPORT NO. 59S TAPP I C0LLAB6RATI VE REFERENCE PROGRAM APRIL 1979 ANALYSIS 736-1 TABLE 2 TABER STIFFNESS

TAPPI STANDARD T489 OS-76, RESULTS EXPRESSED IN GRAM CENTIMETERS

LAB MEANS COORDINATES AVG CODE F A77 J70 MAJOR MINOR R.SDR VAR PROPERTY— -TEST INSTRUMENT--'

LI 58 # 3,12 50.47 -10.35 49.57 4.34 36T STIFFNESS, TABER

LI 63 * 19.S5 4,30 -8.28 .61 1.16 36T STIFFNESS, TABER

L321 0 22,9 5 5. 09 -4.80 e 36 1.78 36T STIFFNESS, TABER

L2 50 25,04 6.51 -2.38 1.10 1.02 36 0 STIFFNESS, TABER, 20 C. 65* RH L318 0 26,30 5. 85 -1.37 .10 1.05 36T STIFFNESS, TABER

LI 22 0 26,46 6,86 -.92 1.02 .81 36 T STIFFNESS, TABER

L692 0 26,63 6,04 -1.00 . 18 .82 36T STIFFNESS, TABER

L212 0 26,6 5 5,94 -1,01 .06 .98 36 T STIFFNESS, TABER

LI 23 0 26,80 5,90 -.86 .00 1.70 36T STIFFNESS, TABER

1126 0 27,15 4.42 -.99 -1.52 .65 36T STIFFNESS, TABER

L24 3 0 27,30 6, 38 -.26 .31 .63 36 T STIFFNESS, TABER L173B 0 27,44 6. 62 06 .50 .69 36T STIFFNESS, TABER

L2 07 0 27,60 7,44 .34 1.24 .72 36T STIFFNESS, TABER LI50 0 27,60 5,90 12 -.24 1.61 36T STIFFNESS, TABER

LI 62 0 27,63 6. 09 03 -.06 1.06 36T STIFFNESS, TABER

L58 0 0 27,70 6. 10 .04 -.07 .67 36 T STIFFNESS, TABER

L442 0 27,71 6.79 .25 .58 .80 36T STIFFNESS, TABER L228 0 27,73 4.73 -.34 -1.39 .74 36T STIFFNESS, TABER

L26 0 0 27,75 6.25 . 13 .05 .53 36T STIFFNESS, TABER

L324 0 27,79 4, 93 -.22 -1.22 o 47 36T STIFFNESS, TABER L236 0 27,88 5.01 1 1 -1.17 .63 36T STIFFNESS, TABER

L57 0 0 28,00 7.00 .59 .70 1.55 36T STIFFNESS, TABER

L651 0 28,10 5.60 .27 -.67 1.73 36T STIFFNESS, TABER

L339 0 28,30 4. 43 . 12 -1.85 .47 36T STIFFNESS, TABER L107A 0 28,31 7.33 .98 .92 .82 36T STIFFNESS, TABER

L26 2 0 28,35 7. 05 .94 .64 .86 36T STIFFNESS, TABER

L28I 0 28,64 6.59 1.08 .12 .93 36T STIFFNESS. TABER

L268 0 28.90 6.30 1.24 -.24 .75 36T STIFFNESS, TABER

L29 0 0 30.40 7. 11 2.91 .09 1.60 36T STIFFNESS, TABER

L242 0 30.84 7.98 3,60 .80 1. 76 36T STIFFNESS, TABER

L230 # 35,20 8.60 7.94 . 10 2.43 36T STIFFNESS, TABER

L388 e 42. 15 25. 50 19. 57 14.20 2.32 36T STIFFNESS, TABER GMEANS

27.64 6. 16 1.00 95* ELLIPSE: 6. 84 2.07 WITH GAMMA - 17 DEGREES

CONDITIONS

50
TABER

UNITS

STIFFNESS, TABER

SAMPLE A77 = 27-6 TABER UNITS SAMPLE J70 = 6.2 TABER UNITS

51
REPORT N0o 59 S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T49-I TABLE 1 SURFACE PICK STRENGTH, IGT

SAMPLE PRINTING SAMPLE PRINTING TEST r’ c

1' 4 LAB J93 89 GRAMS PER SQUARE METER J52 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 44©5 -13,5 — © 4 2 2. 0 o 67 53.2 -3.4 -o 12 i. e .48 4 90 0 L 1 22

LI 49 31,3 -26.7 -.83 2.6 .83 34.9 -21.7 -.74 3, 6 .95 49L 0 LI 49

LI @21 27,9 -30. 1 -.94 2.9 .94 29.6 -27.0 -.92 3.6 .96 490 0 LI 821 L190C 56,5 -1,5 -.05 2. 6 .86 60.7 4. 1 . 14 1.3 .33 49T 0 L190C

L207 74,5 16,5 ©51 3.4 1.11 43,2 -13.4 -.46 5. 1 1.35 491 0 L207

L242 44, 8 -13,2 -.41 ro o

CD o O © 57.0 .4 .01 10.0 2.66 49P 0 L242

L2 77 89,2 31,2 ,98 5. 6 1.81 81.7 25. 1 , 86 10.6 2.81 491 6 L277

L280 65,7 7.7 .24 2.1 .68 62.2 5. 6 . 19 1.4 .38 49U * L2 80 L291 99.0 41.0 1.28 2.1 .67 87.2 30.6 1, 04 1.3 .34 491 0 L291 L368 102.6 44, 6 1,39 6. 2 2, 03 108.0 51.4 1.75 .0 .00 4 9Q 0 L388

LS98 214,7 156. 7 4 ©89 15.1 4.92 215.2 158. 6 5.40 6.2 1.65 49W 0 L598

L643 9,7 -48. 3 -1.51 .5 ,18 10.4 -46.3 -1.58 .4 .12 491 0 L643

L651 203,2 145,2 4.53 .0 ,00 203.2 146.6 4*99 .0 .00 4 9F 0 L651

GS. MEAN • 58,0 KP CM/SEC GRAND MEAN • 56.6 KP CM/SEC TEST DETERMINATIONS • 4 S3 MEANS * 32,0 KP CM/SEC SD OF MEANS - 29.4 KP CM/SEC 10 LABS IN GRAND MEANS AVERAGE SDR • 3. 1 KP CM/SEC AVERAGE SDR • 3. 8 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: 280, 598, 651. The data from these

labs were converted to the common unit, cm/sec.

REPORT NO© 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T49-1 TABLE 2 SURFACE PICK STRENGTH, IGT

LAB MEANS COORDINATES AVG CODE F J93 J 52 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L643 0 9.7 10.4 -66.9 -1.7 . 15 491 SURFACE PICK STRENGTH, IGT, PIB FLUID

LI 821 0 27.9 29.6 -40.4 .3 .95 49Q SURFACE PICK STRENGTH, IGT, IGT OIL

LI 49 0 31.3 34.9 -34.3 1.9 o 89 49L SURFACE PICK STRENGTH, IGT, PIB FLUID

LI 2 2 0 44.5 53.2 -12.3 6.6 .57 49Q SURFACE PICK STRENGTH, IGT, IGT OIL L242 0 44. 8 57.0 -9.5 9.2 1.78 49 P SURFACE PICK STRENGTH, IGT, IGT OIL

LI 90C 0 56.5 60.7 1.7 4. 1 .60 49T SURFACE PICK STRENGTH, IGT, I PC FLUID

L28 0 ft 6 5.7 62.2 9.5 -1. 1 .53 49U SURFACE PICK STRENGTH, IGT, OIL

L2 07 0 74.5 43.2 3.2 -21.0 1.23 491 SURFACE PICK STRENGTH, IGT, PIB FLUID

L277 0 89.2 81.7 40. 0 -2.4 2.31 491 SURFACE PICK STRENGTH, IGT, PIB FLUID

L29 1 0 99. 0 87.2 50. 9 -4.9 .51 491 SURFACE PICK STRENGTH, IGT. PIB FLUID L388 0 102.6 108.0 67.6 8.0 1.01 49Q SURFACE PICK STRENGTH, IGT, IGT OIL L65 I ft 203.2 203,2 206.0 10.7 .00 49F SURFACE PICK STRENGTH, IGT, INK

L59 8 ft 214.7 215.2 222.7 11.9 3.28 49 W SURFACE PICK STRENGTH, IGT, OIL

GMEANS

;

58. 0 56.6 1.00 95* ELLIPSE; 134.8 27.6 WITH GAMMA - 42 DEGREES

52
REPORT NO. 59 S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T50-1 TABLE 1 SURFACE PICK STRENGTH, WAX NUMBER

TAPFI STANDARD T459 OS-75. SURFACE STRENGTH OF PAPER < WAX PICK TEST)

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 5 LAB J93 89 GRAMS PER SQUARE METER J52 89 GRAMS PER SQUARE METER

C6DE MEAN DEV N. DEV SDR R. SDR MEAN DEV N# DEV SDR R. SDR VAR F LAB

LI 05 10.00 .76 .77 .00 .00 9.60 .51 • 58 • 55 1.37 5 OW e L 1 05

Li 22 9.00 -.24 -.24 .00 .00 N6 DATA REPORTED FAR SAMPLE J52 50W M LI 22

LI 58 9. 20 -.04 -.04 .45 1.45 9.60 .51 .58 .55 1.37 SOW 0 L158

Li 62 9.00 -.24 -.24 .00 .00 9.00 -.09 -.10 .00 .00 sow e L162 L173A 8.00 -1.24 -1.25 .00 . 00 7.60 -1.49 - 1.69 .55 1.37 sow 0 L173A

LI82W 9. 20 -.04 -.04 .45 1.45 9.40 .31 .35 .55 1.37 5 0W e L182W

LI 83 9.00 -.24 -.24 .00 .00 9.20 .11 . 13 .45 1.12 50W e LI 83

LI 9 5 9.40 .16 . 16 .55 1.78 9. 00 -.09 -. 10 .00 .00 50W 0 L195

L2 i 3 8.80 -.44 -.44 .45 1.45 9.00 -.09 -. 10 .00 .00 50W 0 L213

L225 11.60 2.36 2.38 .55 1.78 1 0.20 1.1 1 1.26 .64 2.09 50W • L225

L228 8.60 -.64 -.64 .55 1.78 7.80 -1.29 -1.46 .84 2.09 50W 0 L228

L230 8.60 -.64 -.64 .55 1.78 8.40 -.69 -.78 .55 1.37 50W 0 L230

L236 10.00 .76 .77 .00 .00 10.00 .91 1.03 .00 .00 50W 0 L2 36 L243 7,40 -1.84 -1.85 .55 1.78 7.60 -1.49 -1.69 .89 2.23 50W 0 L243 L285 25.40 16.16 16.31 5.77 18.70 24.20 15.11 17. 13 7.22 18.03 SOW * L285

L339 9.40 .16 . 16 .55 1.78 9.40 .31 .35 .55 1.37 50W 0 L339

L567 9.00 -.24 -.24 .00 . 00 9.00 -.09 -.10 .00 .00 50W e L567

L697 10.60 1.36 1.37 .55 1.78 1 0.60 1.51 1.71 .55 1.37 SOW 0 L697

GR. MEAN - 9. 24 WAX NUMBER GRAND MEAN - 9. 09 WAX NUMBER TEST DETERMINATIONS - 5 SD MEANS * .99 WAX NUMBER SD OF MEANS - .88 WAX NUMBER 16 LABS IN GRAND MEANS

AVERAGE SDR - .31 WAX NUMBER AVERAGE SDR - .40 WAX NUMBER

TOTAL NUMBER OF LABORATORIES REPORTING - 18

Best values: J93 9.0 + 1.5 wax number

J52 9.0 + 1.3 wax number

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

REPORT NO. 59

S

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS 150-1 TABLE 2 SURFACE PICK STRENGTH, WAX NUMBER

TAPPI STANDARD 1459 OS- 75, SURFACE STRENGTH OF PAPER (WAX PICK TEST) LAB MEANS COORDINATES AVG CODE F J93 J52 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L243 0 7.40 7.60 -2.36 .09 2.00 SOW SURFACE PICK STRENGTH. WAX ( TAPPI T459 0S75)

L173A 0 8.00 7,60 -1.91 -.30 .68 50W SURFACE PICK STRENGTH, WAX (TAPPI T459 0375 ) L23 0 0 8.60 8. 40 -. 93 -.10 1.57 sow SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75 ) L22 8 0 8.60 7.80 -1.33 -.55 1.93 sow SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75 ) L213 0 8.80 9. 00 -.39 .22 .72 sow SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75 ) L567 0 9.00 9.00 -. 24 .09 .00 sow SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75)

L162 0 9.00 9.00 -.24 .09 .00 sow SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 ) LI 83 0 9.00 9.20 -.10 .24 .56 sow SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 ) L122 M 9.00 .00 sow SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 ) L182W 0 9.20 9.40 . 18 .26 1.41 sow SURFACE PICK STRENGTH, WAX ( TAPPI T459 0975 ) L158 0 9.20 9.60 .21 .41 1.41 sow SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75 ) L339 0 9.40 9.40 .33 .13 1. 57 sow SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75 ) L195 6 9.40 9.00 .06 -.17 .89 sow SURFACE PICK STRENGTH, WAX ( TAPPI T4S9 0S75 ) L236 0 1 0.00 10. 00 1. 17 .18 .00 sow SURFACE PICK STRENGTH. WAX ( TAPPI T459 0S75 ) LI 05 0 10.00 9.60 .91 -.12 .68 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 ) L697 0 10.60 10.60 2.02 .24 1.57 sow SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75 ) L225 • 11.60 10. 20 2. 51 -.72 1.93 sow SURFACE PICK STRBNGTH. WAX ( TAPPI T459 0S75 ) L285 * 25.40 24.20 22. 12 .70 18.36 50 W SURFACE PICK STRENGTH, WAX (TAPPI T459 0S75 ) GMEANS

9.24 9. 09 1.00 95« ELLIPSE: 3.65 .88 WITH GAMMA - 41 DEGREES

APRIL 1979

53
WAX

NUMBER

SURFACE PICK STRENGTH, WAX

SAMPLE J93 = 9.2 WAX NUMBER SAMPLE J52 = 9.1 WAX NUMBER

o

CD

O

CD

o

r~

o

CD

^ + .X.# N0T IN GRAND MEANS

LD

~0 ANALYSIS T50-1

LU

Q_

z:CE

CO

C

C O

o

o

o

o

*

o o o

o

©

© ©

SAMPLE J93

5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0

WAX NUMBER

1 1 .0 12.0 13.0

54
REPORT NO« 59

S

TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS T91-1 TABLE 1 C0NC6RA ( CORRUGATING MEDIUM TEST-CMT)

TAPPI STANDARD T809 OS-71

APRIL 1979

SAMPLE CORRUGATING MEDIUM

LAB E90 125 GRAMS PER SQUARE METER

CODE MEAN DEV N. DEV SDR R. SDR

LI 76 292. 15. .57 17. 1. 11

LI 62 312. 35. 1.34 21. 1.38

L2I 8 249. -28. -1.09 11. .71 L242 235. -42. -1.60 6. .41 L240 307. 30. 1.14 23. 1.51 L255 238. -39. -1.49 12. .78 L269 283. 6. .24 24. 1.56 L28 0 284. 7. .27 15. .99

L289 248. -29. -1.13 12. .78

L32 9 281. 4. .16 21. 1.33 L394 263. -14. -.55 5. .31 L621 308. 31. 1.19 15. .98 L622 292. 15. .57 13. .64

L65 0 287. 10. .37 20. 1.32

GR« MEAN - 277. NEWTONS GRAND MEAN

SD MEANS - 26. NEWTONS SD OF MEANS AVERAGE SDR - 16. NEWTONS

GR« MEAN • 62. 29 POUNDS GRAND MEAN TOTAL NUMBER OF LABORATORIES REPORTING - 14

Best values: E90 280 + 40 newtons

E93 350 + 60 newtons

iMPLE E93 TUBE WINDING

133 GRAMS PER SQUARE METER TEST D. 1 0 MEAN DEV N. DEV SDR R. SDR VAR F LAB

345. 3. . 10 26. 1.64 9 IP O LI 76 391. 49. 1.52 18. 1. 14 9 IN o LI 82 314. -27. -o 85 14. .87 91A © L218

291. -50. -1.54 12. .73 9 1G 0 L242

383. 42. 1.30 28. 1.79 9 l B 0 L248

284. -56. - 1.78 12. .76 9 1 P a L255

356. 14. .44 13. .84 91P o L269

345. 3. . 1 1 20. 1.29 9 IN 0 L2 80 305. -37. -1. 14 14. .90 9 1

P

0 L289

356. 14. .44 20. 1. 28 91P e L329

333. -9. -. 27 5. .29 9 1

P

o L394

356. 15. .46 11. .71 9 1

P

0 L6 2 1 362o 21. .64 12. .75 9 1 P 0 L6 22 360. 19. .58 16. .99 9 IN 0 L650

342. NEWTONS TEST DETERMINATIONS - 10 32. NEWTONS 14 LABS IN GRAND MEANS AVERAGE SDR • 16. NEWTONS

76.77 POUNDS

REPORT NO. 59

S

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T91-1 TABLE 2 CONCORA (CORRUGATING MEDIUM TEST-CMT)

TAPPI STANDARD T809 OS-71

APRIL 1979

LAB MEANS COORDINATES AVG CODE F E90 E93 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT- -•CONDITIONS

L242 0 235. 291. -65. 1. .57 9 1 G FLAT CRUSH STRENGTH, CONCORA, GAYDON FLAT CRUSH TESTER L255 a 238. 284. -69. -6. .77 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH L289 0 248. 305. -47. 0. .84 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L21 8 0 249. 314. -39. 5. .79 91A FLAT CRUSH STRENGTH. CONCORA, INSTRON

L39 4 0 263. 333. -16. 6. .30 9 l P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L329 0 281. 356. 14. 6. 1.31 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH L269 0 283. 356. IS. 4. 1.20 91P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH L280 0 284. 345. 7. -3. 1. 14 91 N FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH L650 0 287, 360. 21. 4. 1. 15 91

N

FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

LI 76 0 292. 345. 12. -10. 1.37 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L622 0 292. 36 2. 25. 1. .80 91 P FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

L24 8 0 307. 383. 51. 3. 1.65 91B FLAT CRUSH STRENGTH, CONCORA, INSTRON

L62 1 0 308. 356. 31. -15. .64 91 P FLAT CRUSH STRENGTH, CONCORA. TMI/HINDE A DAUCH

LI 82 0 312. 391. 60. 3. 1.26 9 1 N FLAT CRUSH STRENGTH, CONCORA, TMI/HINDE A DAUCH

GMEANS: 277. 342. 1.00 95« ELLIPSE! 119. 18. WITH GAMMA - 51 DEGREES

55
P0UNDS

o

O H

LD

cx>

o

cn

LDco

o

CD

LDro

rLDCD

O

CD

LD

LD

O

LD

C0NC0RA ( CMT

)

SAMPLE E90 = 277- NEWTONS

SAMPLE E90 = 62-3 POUNDS

SAMPLE E93 = 342. NEWTONS

SAMPLE E93 = 76.8 POUNDS

o

M- -

O

CM

M"O

OM- o

CD M

COo

CD' CO CD CD

LU

o

•M- CDo

CM

CDO

CDO

CD- CMO

CD -\ CMO

M" - CM

on + .X.« NOT IN GRAND MEANS

CO

L*J ANALYSIS T9 1 - 1

Q_

CE

CO

O

o

o o

C5D O

O O

O

O

O

O

O

SAMPLE E90

160 180 200 220 240 260 280 300

NEWTONS

320 340 360 380 400

40 —r~ 45

i 50i 55i 60 65

POUNDS

—

r

- 70 75 80 85

56
REPORT NO. 59S TAPPI C0LLAB6RATI VB REFERENCE PROGRAM APRIL 1979 ANALYSIS T96-1 TABLE 1 RING CRUSH (COMPRESSION RESISTANCE OF PAPERBOARD)

TAPPI STANDARD T810 OS-76 SAMPLE CORRUGATING MEDIUM SAMPLE TUBE WINDING TEST D. • 10 LAB E90 125 GRAMS1 PER SQUARE METER E93 133 GRAMS PER SQUARE METER

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

LI 07 137. -51. •1.86 14. 1.06 179. -69. -1.94 10. .67 96P 0 LI 07

Li 1 4 221. 33. 1.19 8. .59 261. 12. .34 16. 1.05 96 P 0 LI 14 Li 22 173. -14. -.52 18. 1.41 226a -22. -.62 19. 1.25 96P 0 LI 22

LI 24 198. 10. .37 13. 1. 00 267. 18. .51 14. .92 96 P 0 LI 24

LI 26 176. -12. -.43 8. .64 225. -23. -.65 14. .90 96P 0 LI 26

L 1 4 1 191. 4. . 13 12. .90 241. -8. -.22 11. .74 96 P O L 1 4 1 LI 57 224. 36. 1.31 12. .96 291. 42. 1. 18 14. .92 96P 0 LI 57

Li 7 I 204. 16. .59 15. 1. 1 5 262. 14. .38 9. .58 96N 0 L171

Li 76 1 64 e -24. -.87 14. 1. 12 201. -48. -1.35 19. 1.27 96P 0 LI 76

Li 82 209. 21. .76 8. .59 276. 27. .76 18. 1.21 96N 0 LI 82

Li 9 i 198. 11. .39 25. 1. 90 261. 12. .35 27. 1.77 9 6P O LI 91 L21 8 189. 1. .05 21. 1.64 244. -5. -.13 16. 1.04 961 0 L218

L234 141. -47. -1.71 20. 1.52 205. -44. -1.23 18. 1.20 96 P 0 L2 34 L237 185. -2. -.08 7. a 56 251. 2. . 06 10. .68 96P 0 L237

L242 236. 48. 1.75 13. .97 2990 50. 1.41 10. .66 96G 0 L242 L243 229. 41. 1.48 16. 1.23 313. 64. 1.79 13. . 88 96P O L243

L303 197. 9. .33 11. . 85 265. 16. .45 14. .90 96N 0 L303

L305 172. -16. -.58 6. .49 2470 -2. -. 05 7. .44 96N 0 L305

L329 224. 36. 1.32 18. 1.36 315. 66. 1.86 15. 1.00 96P 0 L329

L333 1 10. -78. -2.83 5. . 36 142. -106, -2.98 4. .24 961 * L333

L350 203. 16. .56 10. .81 263. 14. .40 21. 1. 39 96 P 0 L350 L393 179. -9. -.32 15. 1. 17 249. -0. -„ 00 13. . 88 96P 0 L393

L553 212. 24. .89 19. 1. 48 289o 40. 1. 13 13. .89 96P 0 L5S3

L562 180. -8. -.28 10. .79 245. •4o -.10 33. 2. 20 96P 0 L562

L57 0 167. -21. -.74 5. .37 227. -22. -.61 11. .76 96 P 0 L570

L61 0 214. 26. .93 12. .90 248. * i O -.02 21. 1.40 96 P * L610

L6 17 180. -8. -.29 8. .61 258. 9. .25 20. 1.30 96P 0 L6 17 L621 195. 7. .26 18. 1.40 253. 4. . 11 18. 1. 18 96P 0 L621 L649 166. -22. -.79 6. .43 240. -8. -. 24 10. .67 96P 0 L649

L65 0 195. 7. .27 14. 1. 10 256. 8. .22 14. .94 96N 0 L650

L663 162. -25. -.92 14. 1.09 213. -36. -1.01 16. 1.07 96P 0 L663

L676 178. -10. -.37 10. .73 228. -20. -.57 13. . 83 96 P 0 L676

L666 189. 1. .03 14. 1.07 268. 19. .54 12. .82 96P 0 L686

GK« MEAN • 188. NEWTONS GRAND MEAN - 249. NEWTONS TEST DETERMINATIONS - 10 SD MEANS 28. NEWTONS SD OF MEANS - 36. NEWTONS 33 LABS IN GRAND MEANS

AVERAGE SDR - 13. NEWTONS AVERAGE SDR - 15. NEWTONS

GR« MEAN - 42.21 POUNDS GRAND MEAN * 55.90 POUNDS

TOTAL NUMBER OF LABORATORIES REPORTING - 33

Best values: E90 190 + 40 newtons

E93 250 + 60 newtons

57
REPORT NO. 59S TAPPI COLLABORATIVE REFERENCE PROGRAM APRIL 1979 ANALYSIS T96-1 TABLE 2 SING CRUSH (COMPRESSION RESISTANCE OF PAPERBOARD)

TAPPI STANDARD T818 OS-76 LAB MEANS COORDINATES

CODE F E90 E93 MAJOR MIN0E L333 » 1 1 0. 142. -132. “2.

LI 07 0 137„ 179. -86. — 1

.

L234 0 141. 205. -64. 11. L663 0 162. 213. -44. -2.

LI 76 0 164. 201. -53. -10. L649 0 166. 240. -20. 12. L570 0 167. 227. -30. 3. L30 5 0 172. 24 7. -1 1. 12.

LI 22 o 173. 226. -26. -2.

LI 26 0 176. 225. -26. -5. L676 0 178. 228. -22. -4. L393 0 179. 249. -5. 7. L617 0 180. 258. a. 12. L562 0 180. 245. "7. 4. L237 0 185. 25 1

.

0. 3. L6Q6 0 189. 268. 16. 11. L21 e 0 189. 24 4. -3. -4. L14 1 0 191. 241. -4. -7. L621 0 195. 253. 8. -3. L650 0 195. 256. 1 1. -1.

L303 0 197. 265. 18. 2.

LI 24 0 198. 267. 21. 3. LI 9 1 0 198. 261. 16. -1. L350 0 203. 263. 21. -4.

LI 7 1 0 204. 262. 21. -5.

LI 82 0 2 09. 276. 34. -0. L553 0 2 12. 289. 47. 5. L61 0 * 2 14. 248. 15. -21.

LI 1 4 0 221. 261. 29. -19.

LI 57 0 224. 291. 55. -3. L329 0 2 24. 315. 75. 11. L243 0 229. 313. 76. 6. L24 2 0 236. 299. 69. -8. GMEANS

;

188. 24 9. 95% ELLIPSE: 1 16. 21.

AVG

So SDR VAR PROPERTY 'TEST INSTRUMENT--

.30 961 RING CRUSH, I NSTR0N

.86 96 P RING CRUSH, TMI/HINBE & DAUCH

1.36 96P RING CRUSH, THI/HINDE & DAUCH

i.oe 96P RING CRUSH, TMI/HINDE & DAUCH

1. 19 96P RING CRUSH, TMI/HINDE A DAUCH

.55 96 P RING CRUSH, TMI/HINDE A DAUCH

.56 96P RING CRUSH, TMI/HINDE A DAUCH

.47 96 N RING CRUSH, TMI/HINDE A DAUCH

1.33 96P RING CRUSH, TMI/HINDE A DAUCH

.77 96 P RING CRUSH, TMI/HINDE A DAUCH

.78 96 P RING CRUSH, TMI/HINDE A DAUCH

1.03 96 P RING CRUSH, TMI/HINDE A DAUCH

.95 96 P RING CRUSH, TMI/HINDE A DAUCH

1. 50 96 P RING CRUSH, TMI/HINDE A DAUCH

.62 96 P RING CRUSH, TMI/HINDE A DAUCH

.95 96P RING CRUSH, TMI/HINDE A DAUCH

1.34 961 RING CRUSH, INSTRON

.82 96 P RING CRUSH, TMI/HINDE A DAUCH

1.29 96 P RING CRUSH, TMI/HINDE A DAUCH

1.02 96N RING CRUSH, TMI/HINDE A DAUCH

.87 96N RING CRUSH, TMI/HINDE A DAUCH

.96 96 P RING CRUSH, TMI/HINDE A DAUCH

1.84 96 P RING CRUSH, TMI/HINDE A DAUCH

1. 10 96P RING CRUSH, TMI/HINDE A DAUCH

o 87 96 N RING CRUSH, TMI/HINDE A DAUCH

.90 96N RING CRUSH, TNI/HI NDE A DAUCH

1. 18 96P RING CRUSH, TMI/HINDE A DAUCH

1.15 96P RING CRUSH, TMI/HINDE A DAUCH

.82 96P RING CRUSH, TMI/HINDE A DAUCH

.94 96 P RING CRUSH, TMI/HINDE A DAUCH

1. 18 96P RING CRUSH, TMI/HINDE A DAUCH

1.06 96 P RING CRUSH, TMI/HINDE A DAUCH

.82 96 G RING CRUSH, GAYDON FLAT CRUSH

lcOO WITH GAMMA * 52 DEGREES

-CONDITIONS

TESTER

58
POUNDS

RING CRUSH

LDCD

O

CD

LD

ro

o

LDCD

O

CD

LDLD

O

LD

LD

'3"

O>3-

LDOD

O

00

SAMPLE E90 = 188- NEWTONS

SAMPLE E90 = 42-2 POUNDS

SAMPLE E93 = 249. NEWTONS

SAMPLE E93 = 55.9 POUND

NENT0NS

I I I I I

1 1 1 1 1 1

1 15 20 25 30 35 40 45 50 55 60 65 70

POUNDS

59
REPORT NO. S9S TAP PI COLLABORATIVE REFERENCE PROGRAM APRIL 1979

SUMMARY TABLE

SAMPLE GRAND SD eF AVER REPL LABS LABS REPL

TEST METHOD CODE MEAN MEAN SDR CRP INCL PART I

C

TAPPI REPEAT REPR^D

BURSTING' STRENGTH, MODEL C J87 17. 52 1,21 1.13 15 44 49 10 .99 3. 39 T10-1 PSI J 40 29. 56 1 o 92 1.64 1.44 5. 37

BURSTING STRENGTH, MODEL C-A J 87 17.91 1.37 1.18 15 35 39 10 1.03 3. 83 T10-2 PSI J40 29, 56 1.77 1.61 1.41 4. 96

BURSTING STRENGTH, HIGH RANGE B56 38.7 1.8 2.9 15 39 48 10 2.5 5.2

Til -l PSI K30 59.0 2.6 4.2 3.7 7.6 TEARING STRENGTH, DEEP CUTOUT B96 47.1 2.5 1.6 15 128 145 10 1.4 6.9

T15-1 GRAMS GO 1 85.3 4.3 2.7 2.4 11.9 TEARING STRENGTH, NO CUTOUT K49 116.8 7.0 5.7 15 1 1 14 10 5.0 19.6 T17-1 GRAMS K20 143. 1 8.9 6.8 6.0 25.0 TENSILE STRENGTH, PACKAGING PAPERS J 16 8.79 ,32 .32 20 47 52 12 .26 .91 T19-I KIL8NEWTON/M K32 8.80 .28 .46 .36 . 82 TENSILE STRENGTH, CRE TYPE K39 4. 89 ,29 .24 20 44 49 12 .19 . 82 T20-1 KILONEWTON/M G03 3. 19 . 17 • 15 . 12 .47 TENSILE STRENGTH, PENDULUM TYPE K39 5, 00 .28 .25 20 37 38 12 .20 .77 T20-2 KILONEWTON/M G03 3.30 .25 .16 . 13 .71

T® E® A® . PACKAGING PAPERS J 16 124. 1 15.9 13.0 20 17 17 12 10.4 44.5

T25-1 JOULES/SC M K32 81 .8 12.3 10.7 8.6 34.4

T.EoA,, PRINTING PAPERS K39 54.4 5o 0 5.4 20 18 19 12 4.4 14.2 T26-1 JOULES/SC M G 03 31.3 3.2 3.3 2.6 8.9 ELONGATION TO BREAK, PACKAGING PAPER J 1

6

2.25 .23 .17 20 17 18 12 . 13 .65

T28-1 PERCENT K32 1. 56 .21 .14 . 12 . 58 ELONGATION TO BREAK, PRINTING PAPER K39 1.710 .151 . 150 20 17 19 12 . 120 .4 24 T29-1 PERCENT G03 1.501 .157 . 131 . 104 .440 FOLDING ENDURANCE (MIT) B88 49.0 16.3 19.7 IS 46 52 10 17.3 46.2

T30-1 DOUBLE FOLDS A92 30.6 6.4 10.3 9.0 18.5 FOLDING ENDURANCE ( MIT

)

B86 1.63 . 16 . 18 15 46 52 10 .16 .44 T30-2 LOG< 10 ) FOLD A92 1.46 .09 . 15 . 13 .27

STIFFNESS, CURLEY K4 1 109.2 13.0 7.2 10 35 39 10 6.3 36. 1 T35-1 GURLEY UNITS J26 244.0 16.6 12.3 10.7 46.0 STIFFNESS, TABER A77 27.64 2.49 1.53 10 29 32 5 1.90 7.02

T36-1 TABER UNITS J70 6. 16 1.07 .39 .49 2. 99 SURFACE PICK STRENGTH, IGT J93 58.0 32.0 3. 1 4 10 13 4 4.3 88.7

T49-1 KP CM/SEC J 52 56.6 29.4 3.8 5.2 81.3 SURFACE PICK STRENGTH, RAX J93 9.24 .99 .31 5 16 18 5 .38 2.75

T50-1 WAX NUMBER J52 9. 09 .88 .40 .50 2.44

CON CORA ( CMT ) E90 277. 26. 16. 10 14 14 10 14. 72. T9 1-1 NEWTONS E93 342. 32. 16. 14. 90. RING CRUSH E90 1 880 28, 13. 10 33 33 10 11. 76. T96-1 NEWTONS E93 249, 36 0 15. 13. 99.

60
NBS-114A (REV. 9-78)

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO. TAPPI CSP 59S

3. fiMptenfi Acces&jpri No.

4. TITLE AND SUBTITLE

Tochnical Aeflociation of the Pulp and Paper Industry

C6LLAB6BATI VE REFERENCE PROGRAM FOB PAPER

Beport 059S

5. Publication Date July 27, 1979

7. AUTHOR(S)

S* G* Powell, J# Horlick

8. Performing Organ. Report No. NBSIR 79-1802/?

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 leas tactual summary of moat significant information. If document includes a significant bibliography or

literature survey, mention it here.)

Collaborative Reference Programs provide participating laboratories with the aeans for checking periodically the level and

uniformity of their testing An comparison with that of other

participating laboratories* An important by-product of the programs is the provision of realistic pictures of the state off

the testing art* This is one of the periodic reports showing

averages for each participant, within and between laboratory

variability, and other information for participants and standards committees*

17. KEY WORDS (six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name;

separated by semicolons)

Collaborative reference prograa; Laboratory evaluation* Paper,

Precision; Reference samples. Testing calibration

18. AVAILABILITY Unlimited 19. SECURITY CLASS

(THIS REPORT)

21. NO. OF

PRINTED PAGES j XX For Official Distribution. Do Not Release to NTIS UNCLASSIFIED

67

1 1 Order From Sup. of Doc., U.S. Government Printing Office, Washington, DC

20402, SD Stock No. SN003-003-

20. SECURITY CLASS

(THIS PAGE)

22. Price

1i

1 I Order From National Technical Information Service (NTIS), Springfield, VA. 22161 UNCLASSIFIED ! USCOMM DC
.

5
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