TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 51S

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

Retroref lect ivity

Rubber (4 times per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

ASTM Textiles (3 times per year)

Flammability (FF3-71 and FF5-74)

ASTM Cement (2 times per year)

Chemical (11 chemical components)

Physical (8 characteristics)

AASHTO Bituminous

Asphalt cement (2 times per year)

Cutbacks (once a year)

let

saa3

Collaborative Reference Programs

B360 Polymer Building

National Bureau of Standards

Washington, D.C. 20234
TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

Report No. 51

S

STRENGTH TESTS

R. G. Powell

TAPPI-NBS Research Associate

Collaborative Testing Services, Inc.

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

Laboratory Evaluation Technology Section

Standards Application and Analysis Division

Institute for Applied Technology

NBSIR 78-1336

U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

INTRODUCTION

Reports 51S and 51G comprise the third set of reports for the

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

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

tests which measure other properties will receive only the G

report

.

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

familiarizing themselves with the International System of

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

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

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

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

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

Notes and comments for individual laboratories and "Best Values"

applicable to a particular method are given following Table 1

for each method. See page 4 of this report for an explanation

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

provisional values included with the samples to detect serious

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

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

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

or Jeffrey Horlick on 301/921-2946.

Edwin B. Randall, Jr., Administrator

TAPPI Collaborative Reference Program

Laboratory Evaluation Technology Section

March 28, 1978
TAPPI-NBS COLLABORATIVE REFERENCE PROGRAM

BACKGROUND AND PURPOSE

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

Paper Industry established a collaborative reference program to provide a participating

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

comparison with that of other laboratories.

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

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

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

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

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

HOW THE PROGRAM WORKS

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

may enter the program at any time.

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

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

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

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

values should be known to the operator.)

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

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

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

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

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

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

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

recognized reference laboratories in this and other countries.

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

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

these values for each test method.

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

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

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

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

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

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

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

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

Repeatability and Reproducibility Statements such as Contained in ASTM, TAPPI 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.
PAGE

i

ii

iv

15

8

11

14

19

21

24

27

30

33

36

38

41

44

47

50

53

55

58

60

63

TABLE OF CONTENTS

Analyses In This Report

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 Oil type

40-

2 Air Resistance, Sheffield type

41-

1 Air Resistance, Gurley Mercury type

44-

1 Smoothness, Parker Printsurf

45-

1 Smoothness, Sheffield type

45-2 Smoothness, Bekk type

47-1 Smoothness, Bendtsen type

56-

1 K & N Ink Absorption

57-

1 pH, Cold Extraction

57-2 pH, Hot Extraction

60-1 Opacity, White (89%) Backing

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

60-3 Opacity, Paper Backing, Elrepho type

65-1 Blue Reflectance (Brightness) , Directional

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

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

75-1 Specular Gloss, 75°

90-1 Thickness (Caliper)

95-1 Grammage (Basis Weight)

iii
TABLE OF CONVERSION FACTORS TO METRIC (SI) UNITS

Physical

Quantity

Bursting strength

Tearing strength

Tensile strength

Tensile energy absorption

Bending stiffness

Flat-crush strength (Concora)

Ring-crush (TAPPI)

(ISO)

To Convert

From To

Multiply

by

psi kPa 6.895

kg/cm2 kPa 98.07

bar kPa 100.00

g mN 9.807

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

ft-lb/ft

2 J/m2 14.59

in. -lb/ in.

2 J/m2 175.1

kg-m/m

2 J/m2 9.807

g* cm ViN*m 98.07

lb N 4.448

lb N 4.448

lb/6.00 in. kN/m 0.0292

Thickness mil ym 25.40
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 o.Uo 1.77

10 0 .46 1.67

15 0.56 1.53

20 0.6l 1.1+5

25 0.65 1.39

VAR - Code for instrument type or variation in

condition, see second table.

F - Flag, with following meaning: + - Excluded from grand means because VAR

non-standard for this analysis

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

the laboratory. (See NOTES following Table 1

for each method.)

M - Excluded because data for one sample are missing

X - Excluded because plotted point would fall

outside of the 99% error ellipse, (see

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

falls outside of the 95% error ellipse.

The participant should take this as a warning

to reexamine his testing procedure

S - Included in grand mean but only after

omission of one of more 'wild' values;

that is, test determinations more than 3

times AVERAGE SDR from the laboratory's

MEAN. Not more than 20% of the test determination

may be excluded in this manner without

rejecting the laboratory.

0 - Included in grand mean and inside 95% error

ellipse

.

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

applies to this method, the distance along

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

major axis also includes a systematic

laboratory component of error.

2
95% ELLIPSE -

AVG R. SDR -

Graph -

Lengths of the major and minor axes of

the ellipse and the angle that the major

axis makes with the horizontal axis.

Average of the R. SDR for the two samples;

an indication of the laboratory's precision

of repeated measurements.

For each laboratory the MEAN for the second

sample is plotted against the MEAN for the first

sample, with each point representing a laboratory.

The horizontal and vertical lines are the GRAND

MEANS. The dashed line is drawn at 45°.

The solid sloping line, which may or may not

lie close to the 45° line, is along the major

axis of the error ellipse. The ellipse is drawn

so that , on the average, it will include 95% ctf the points representing the laboratories.

Plotted symbols are as explained above

(under F), except that an 'S' is plotted as an 'O'. A participant whose plotted point

falls outside of the ellipse should carefully

reexamine the testing procedure he is

following

.

The graph is plotted with an ellipse when there

are 20 or more laboratories in the analysis.

When there are 10 through 19 laboratories in

the analysis the graph is plotted but the ellipse

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

plotted.

The International System of Units (SI) is used on

the plots wherever possible to aid participants

in familiarizing themselves with SI. Grand means

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

supplementary scales in SI units are drawn along

the axes allowing the reader to compare means and

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

3
Summary - (At end of

report)

REPL CRP -

REPL TAPP I -

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 betweenlaboratory 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
REPORT NO. 51 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY tc?P ANALYSIS T10-1 TABLE l BURSTING STRENGTH. PSI TAPPI STANDARD T403 OS- 76. BURSTING STRENGTH OF PAPER - PERKINS MODEL C SAMPLE PRINTING SAMPLE PRINTING TFST D. - 1 5 LAB H62 77 GRAMS PER SQUARE METER H39 84 GRAMS PER SQUARE MFTER

CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R . SDR VAR F I AB

LI 07 15.20 -1.73 -1 .22 1 . 01 . 91 32.80 -2,74 -1.24 3.12 1 .46 IOC 0 LI 07

L 1 2 1 16.26 -.67 -.47 1.11 • 99 35.32 -.2? -.10 1.96 .92 1 OC 0 LI ?1 ti 31 15.20 -1 . 73 -1 .22 1.42 1.27 31 .13 -4.40 -2. 00 2.39 1 .12 1 OC 0 LI 71

Lt 34 16.67 -.26 -.18 .82 . 73 35.27 -.27 -.12 1.44 .67 1 OC 0 LI 34

LI 50 17.07 .14 .10 1 .94 1 . 74 36.97 1.43 .65 2.38 1 .11 1 OC 0 LI 50

LI 53 17.33 .41 . 29 1 .23 1.10 35.57 .03 .01 1.62 • 76 10c 0 LI 53

LI 58 16.43 -.50 -.35 1.16 1 • 04 NS DATA RFPSRTED F SR SAMPLE H39 1 OC M LISP

LI 62 1 3. 67 -3. 26 -2.29 1.68 1 • 50 29.80 -5.74 -2.61 3.91 3 .83 1 OC * LI 6?

LI 67 17.57 . 65 . 45 . 62 . 56 35.67 .1 3 . 06 •

"* 6 . 35 1 OC 0 1 1 67

LI 83 16.07 -. 86 -.61 1 • 41 1. 26 31.70 -3.84 -1 .74 2.35 1 .10 1 OC 0 LI 9?

LI 91 16.83 -.09 -.07 1.18 1.05 36.07 . 24 2.08 .97 1 OC 0 LI c 1 L2 03A 15.23 -1.69 -1 . 19 1 .19 1 . 06 35.83 .30 .14 2.58 1 • 21 10 c 0 L2C3A L203B 15.27 -1 . 66 -1.17 1 . 33 1.19 36.98 1 .45 .66 3.36 1 .50 1 OC 0 L2 03 h L2 07 19.43 2.51 1 . 76 .80 .71 37.87 2.33 1 .06 1 .9 9 .9? 10 c c> 1207

L21 2 17.63 . 71 . 50 1 . 29 1.15 35.40 -.14 -.06 2.98 1 .40 1 oc 0 L? 1 2

L2 2 3 A 19.68 2.75 1 .94 1.20 1.07 43.17 7.63 3.47 1.68 .79 1 OC * L c ? 3A L225 18.27 1.34 .94 1.15 1. 03 37.20 1 .66 .76 2.02 .95 IOC 0 L?T6 L232 17.00 . 07 .05 1 . 34 1. 20 35.70 .16 .07 2.40 1 .13 ICC 0 L£7? L237A 17.00 . 07 .05 .76 . 68 36.67 1.13 .51 .90 .42 3 OC 0 L2 37A

L2 37B 17.60 .67 • 47 .74 . 66 36.93 1.40 • 64 1.10 .52 ICC 0 L r 2’B

L243 18.37 1 . 4* 1.01 1 . 08 • 96 35.40 -•14 -.06 2.1 9 1 .02 10 c 0 L247

L2 4 8 1^.01 . 09 . 06 1 . 04 .93 36.37 .83 .38 1.96 .91 1C F e L2 8 L249 15.03 -1.89 -1 . 33 • 61 . 55 32.91 -2.63 -1 .20 1.20 • 56 1 oc 0 L 2 49

L261 16.37 -.56 -.39 .71 . 64 33.27 -2.27 -1 .03 1.83 . 96 1 oc H L263

L2 64 16.93 • 01 . 00 .96 . 86 35.40 -.14 -.06 1.40 .66 1 oc f» LT 64

L279 16. 15 -.77 -.54 .98 • 87 35.63 .1 o . 04 J . 38 .65 1 oc 0 L?7C L299 18.33 1 .41 . 99 1 .36 1 . 22 38.47 2.93 1 .33 2. 1 5 1 .01 1 oc 0 L299

L305 16.67 *.26 -.18 1.11 1 . 00 38.37 2.83 1 . 29 1.62 .76 : oc 0 1305

L311 17.63 . 71 . 50 1.51 1. 35 37.43 1 .90 .86 2.26 1 . 06 1 or r> L?1 1 L31 2 18.33 1 .41 .99 .72 . 65 34.67 -.8^ -.40 2.0? .95 1 oc H L? 1 ?

L31 5 19.79 2. 86 2.01 1 .56 1 . 39 36.97 1 .43 • 65 4.03 1 • 89 10 c 0 L716

L3 21 17.27 • 34 .24 1.27 1.13 33.50 -2.04 - .93 3.67 1 .7? 1 oc 0 L721 L322 17.49 .56 . 39 1.10 .98 38.33 2.80 1 .27 2.64 1 .24 10c f\ l 322 L326 16.63 -.29 -.21 1.26 1.13 35. 9"* .43 .20 1 .86 .87 1 oc f* L 3 2 6 L330 17.57 • 65 . 45 .90 . 81 38.22 2.68 1 .22 2.25 1 .05 1 oc 0 L37 0

L3 31 17.27 . 34 . 24 1.16 1 . 04 37.00 1 .46 .67 3. 30 1 .54 1 oc 0 L331 L333 14.80 -2. 13 -1 . 50 1 .08 . 97 32.87 -2.67 -1 .21 2.39 1 • 12 ICC 0 L7 ^3 L339 15.30 -1.63 -1 . 14 1.14 1. 02 35.03 -.51 -.23 2.1 6 1 .01 1 oc r L 5 39 L34A 13.90 -3. 03 -2.13 .97 . 87 32.43 -3.10 -1 .41 1.60 .75 IOC ft l 344 L355 18.19 1 . 27 . 89 1.67 1 . 49 34.92 -.62 -.28 1.63 .76 1 oc 0 t *>56

L358 15.80 -1.13 -.79 .92 . 82 30.70 -4. 84 -2.20 2.28 1 . 0^ 1 oc 0 L35 8 L360 17.50 . 57 .40 . 85 .76 34.95 -.58 -.27 2.73 1 .29 2 OC 0 1.36 0 L39 0 17.1 3 • 21 • 14 1 .41 1.26 36.40 . 86 .39 1 . ’C • 61 1 cc 0 L39 0 L561 20.53 3.61 2.54 1.43 1. 28 39.23 3.70 1 .68 2.30 1 .08 10 c 0 L56

1

L563 10.86 -6. 07 -4.27 1 . 06 • 95 30.37 -5.17 -2.35 1.25 .58 1 oc X L567

L56 8 18.29 1.37 .96 1.11 . 99 37.09 1 .56 .71 3.07 1 .44 3 OC 0 L56e

L599 17.79 . 87 .61 . 83 • 74 37.52 1 .98 .90 1 .46 .68 1 00 0 LS99

L6 01 16.37 -.56 - .39 1.15 1 . 03 3^.23 1 .69 • 77 1 .85 • 0"* 1 oc 0 L6 01

GR. MEAN • 16.93 PSI GRAND MEAN 35.54 PSI TEST DETERMINATIONS • 15

SD MEANS • 1.42 PSI SD 0F MEANS 2.20 PSI 45 LABS IN GRAND MF ANS AVERAGE SDR • 1.12 PSI AVERAGF SDR • ?.’ 3 PSI

GR. MEAN • 116.7 KILSPASCAL GRAND MEAN 245.0 KILAPASCAl

LI 28 17.73 • 81 • 57 • 80 .M 36,27 .73 .33 2.28 1 .07 1 OB L128

L2 4 c 18.61 1 • 68 1.18 • 81 . 72 37.26 1 .83 .83 1 .fra .77 IOT L2A?

L2ti 19.48 2. 55 1.79 .90 . 81 36.83 1 .29 .5° 1 . Pfr . 87 1 ov L?EI L269 20.47 3. 54 2.49 1.52 1

.

36 37.67 2.1? .97 1 .33 .62 I 0 A L2frS L4 8 4 16.80 -.13 -. 09 1.13 1 . 01 34.93 - .60 -.2"> 2.23 1 • 04 1 OM La 84 TOTAL NUMBER OF LABORATORIES REPORTING - 53

Best Values: H62 17.0 + 2.3 psi

H39 35.7 + 2.8 psi

The following laboratories were omitted from the grand means because of extreme test results: 223A.

5
REPORT Nd. ?1S TAPPI COLLABORATIVE REFERFNCE PROGRAM ANALYSIS T10-1 TABLE 2 BURSTING STRENGTH, PST TAPPI STANDARD T403 OS-76, BURSTING STRENGTH OF PAPER = PERKINS MODEL C

JANUARY 5 9-B

COORDINATES AVG CODE F H62 H39 MAJOR MINOR R. SDR VAR PROPERTY- --TEST INSTRUMENT--- CONDITIONS

L56 3 X 1 0.86 30.37 -7.43 2. 89 . 77 IOC BURSTING STRENGTH UP TO 45 PSI , PFRKINS C, MANUAL CLAMP

LI 6 2 « 13. 6^ 29.80 -6. 60 .15 1.67 IOC BURSTING STRENGTH UP TO 45 PSI , PERKINS c. MANUAL CLAMP

L344 O 13.90 32.43 -4.17 1 . 19 .81 IOC BURSTING STRENGTH UP TO 45 PSI , PERKINS c. MANUAL CLAMP

L3 3 3 0 14.80 32.87 -3.36 .61 1 . 04 IOC BURSTING STRFNGTH UP Tfl 45 PSI , PERKINS c. MANUAL CLAMP

L2 49 o 15.03 32.91 -3. 21 .42 .56 1 oc BURSTING STRENGTH UP TO 45 PSI , PERKINS c. MANUAL CLAMP

LI 07 o 15.20 32.80 -3.23 .22 1.18 IOC BURSTING STRENGTH UP TO 45 PST , PERKINS C, MANUAL CLAMP

LI 31 o 15.20 31.13 -4.70 -.57 1.20 IOC BURSTING STRENGTH UP Tfl 45 PSI , PERKT NS C. MANUAL CLAMP

1203 A 0 15.23 35.83 54 1.63 1.13 IOC BURSTING STRENGTH UP TO 45 PSI , PERKINS C, MANUAL CLAMP

L2 03B fl 15.27 36.98 • 48 2. 15 1 . 38 IOC BURSTING STRENGTH UP Tfl 45 PSI , PERK 1 NS C, MANUAL CLAMT

L339 o 15.30 35.03 -1 . 22 1 . 19 1.02 IOC BURSTING STRFNGTH UP Tfl 45 PSI , PERKINS c. MANUAL CLAMP

L358 0 15.80 30. 70 -4.79 -1.30 . 95 IOC BURSTING STRENGTH UP Tfl 45 PSI , PERKINS c. MANUAL CLAMP

LI 83 a 1 6.07 31 . 70 -3.79 -1 . 06 1.18 IOC BURSTING STRFNGTH UP Tfl 45 PSI , PFRKINS c. MANUAL CLAM?

L279 o 16.15 35.6 3 -.28 .73 .76 1 oc BURSTING STRENGTH UP Tfl 45 PSI , PERKINS c. MANUAL CLAMP

LI 21 0 16.26 35.32 -.51 .49 .95 IOC BURSTING STRFNGTH UP TO 45 PSI , PERKINS c. MANUAL CLAMP

L6 01 0 16.37 37.23 1 .22 1 .30 .95 IOC BURSTING STRENGTH UP TO 45 PSI , PERKT NS c

,

MANUAL CLAMP

L261 0 16.37 33.27 -2.26 -.58 .75 1 oc BURST ING STRENGTH UP TO 45 PSI , PFRKINS c. MANUAL CLAMP

LI 58 M 16.43 1 . 04 IOC BU RST I NG STRENGTH UP TO 45 PSI , PFRKTNS c. MANUAL CLAM*

L2 26 0 16.63 35.97 .24 . 46 1 . 00 IOC BURSTING STRENGTH UP TO 45 PSI , PFRKINS C, MANUAL CLAMP

LI 3 4 0 16.67 35.27 -.36 . 10 .70 IOC BURSTING STRENGTH UP TO 45 PST , PERKINS C, MANUAI CLAMP

L3 05 0 16.67 38.37 2.37 1 . 57 . 88 IOC BURSTING STRENGTH UP TO 45 PSI , PERKINS c. MANUAL CLAM'*

L404 16.80 34 . 93 -.59 -.17 1.03 1 0 M BURSTING STRENGTH UP TO 45 PSI , RFGMED MT/MflT, MANl AI CLAMP

LI 91 o 16.83 36.07 .42 • 34 1 .01 IOC BURSTING STRENGTH UP TO 45 PSI , PERKINS c. MANUAL CLAMP

L264 o 16.93 35.40 -. 12 -. 07 .76 1 oc BURSTING STRFNGTH UP TO 45 PSI , PERKT NS c. MANUAL CLAMP

L2 3 2 fl 17.00 35.70 . 1 8 . 01 1.16 1 oc BURSTING STRENGTH UP T« 45 PSI , PFRKINS c. MANUAL CLA MF L237A e 17.00 36.67 2.03 . 47 .55 1 oc BURSTING STRENGTH UP TO 45 PSI. PFRKINS c. MANUAL CLAMP

L248 o 1 7.01 36.37 .77 .32 .92 1 OE BURSTING STRFNGTH UP TO 45 PSI , PERKINS C, MANUAL CLAMP U 50 0 17.07 36 . 9"* 1.32 . 56 1.43 1 oc BURSTING STRENGTH UP TO 45 PSI , PFRKINS c. MANUAL CLAMT

L39 0 0 17.13 36.40 . 86 . 23 .93 IOC BURSTING STRENGTH UP TO 45 PSI , PFRKINS C, MANUAL CLA MF L321 0 1^.27 33.50 -1 . 63 -1 . 27 1 .43 IOC BURSTING STRFNGTH UP TO 45 PSI , PERKINS C, MANUAL C L A M n L3?l o 1 7 • 27 37.0 0 1 . 45 . 40 1.29 IOC BURST ING STRFNGTH UP TO 45 PSI , PERKINS c. MANUM CLAMP

1153 0 1 7.33 35.57 .22 - .34 .93 IOC PU RST ING STRENGTH UP TO 45 PSI , PFRKINS C, MANUAL CLAMP

L322 0 1 7.49 38.33 2.73 . 84 1.11 IOC BU RST ING STRENGTH UP TO 45 PSI , PFRKTNS c. MANUAL CLAMP

L360 0 1

_r .50 34.95 -.24 -.78 1 .02 IOC BURSTING STRENGTH UP TO 45 PSI , PE RKI NS c. MANUAL C LAM * L330 0 17.57 3e. 22 2.67 .71 .93 1 oc BURST ING STRENGTH UP TO 45 PSI , PERKINS C, MANUAL Cl AMP

LI 67 fl 17.57 35.67 • 42 -.51 .46 IOC BURSTING STRFNGTH UP TO 45 PSI , PFRKI NS c. MANUAI CLAMP

L237B fl 17.&0 36.93 1 . 55 . 07 . 59 1 oc BURSTING STRENGTH UP TO 45 PSI , PF RK I NS c. MANUAL CLAM*

1212 fl 17.63 35.40 • 21 -.69 1.27 1 oc BURSTING STRFNGTH UP Tfl 45 PSI , PERKT NS c. MANUAL Cl AMP

L31 1 H 17.63 37.4 3 2.00 • 26 1.20 IOC BURSTING STRENGTH UP Tfl 45 p«= I , PERKT NS C, MANUAL CLAMP

1128 17.73 36.27 1 .03 -.36 . 89 1 OB BURSTING STRFNGTH UP TO 45 PST , PFRKINS B, MANUAL CLA MP L599 fl 17.79 37.52 2.1 6 • 18 .71 1 oc BURSTING STRENGTH UP Tfl 45 PST , PERKINS c. MANUAL CLAMP

L355 o 18.19 34.92 . 06 -1 .41 1.13 1 OC BURSTING STRFNGTH UP Tfl 45 PST . PFRKTNS c. MANUAL CLA MP L225 fl 1 8. 2^ 37.20 2.10 -.39 .99 IOC BURSTING STRFNGTH UP Tfl 45 PSI , PERKINS c. manual CLAMP

L56 8 fl 18.29 37.09 2.02 - . 46 1 .22 IOC BURSTING STRFNGTH up Tfl 45 PSI , PF RK T NS c. MANUAL CLAMP

L299 fl 18.33 38.47 3.25 .15 1.11 IOC BURSTING STRENGTH UP Tfl 45 PSI , PFRKINS C. MANUAL CLAMP

L31 2 rt 1 8.33 34. 67 -.10 -1 .65 .80 IOC BURSTING STRENGTH UP Tfl 45 PSI , PFRKI NS C, MANUAL CIAMP

L243 0 18.37 35.40 .56 -1 .33 . 99 IOC BURSTING STRENGTH UP Tfl 45 PSI , PERK INS C. MANUAL. CLAMP

L2 4 2 1 8.61 37.36 2.40 -.61 .75 1 OT BURSTING STRENGTH UP TO 45 PSI , L»W , MANUAL CLAMP

L207 o 19.43 37.87 3.24 -1 . 10 .82 IOC BURSTING STRENGTH UP Tfl 45 PSI , PFRKI NS C. MANUAL CLAMP

L25 1 19.48 36.83 2.35 -1 .63 .84 1 0 V BURSTING STRFNGTH UP Tfl 45 PSI , L*W, MANUAL CLAMP. 20C

,

6 5% L223A ft 1 9.68 43.17 6.02 1 .20 .93 IOC BURSTING STRENGTH UP TO Afl PSI . PERKT NS C, MANUAI CLAMP

L31 5 o 19.79 36.9 7 2.62 -1 . 84 1.64 IOC BURSTING STRENGTH UP TO 45 PSI , PERKINS C. MANUAL CLAMP

L269 20.47 37.67 3.56 -2.10 .99 1 0 A BURSTING STRFNGTH UP Tfl 45 PSI , PERKINS A. MANUAL CLAMP

L561 o 20.53 39.2 3 4.97 -1 . 42 1.18 IOC BU RST I NO STRENGTH UP TO 45 PSI , PERKINS C. MANUAL CLAMP

GMFANS

16.93 35.54 1 .00 95% ELLIPSE: 6.28 2.39 WITH GAMMA • 61 DEGRFLS

6
KILOPRSCRL

190

210

230

250

270

290

BURSTING STRENGTH

,

MODEL C

SAMPLE H62 = 16.9 PSI SAMPLE H39 = 35.5 PSI

SAMPLE H62 = 117 KILOPASCAL SAMPLE H39 = 245 KILOPASCAL

PSI

i

1 1 1 1 1 1 1 1 r1

1 60 70 80 90 110 130 150 170

KIL0PRSCRL

7
REPORT N0. 51 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY IS'fi ANALYSIS T10-2 TABLE 1 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTH 0F PAPER - PERKINS MODEL C-A AR C WITH A I R 0R HYDRAULIC CLAMPS

SAMPLE PRINTING SAMPLE PRINTING TFST D. - 1 5 LAB H62 77 GRAMS PER SQUARE METER H39 84 GRAMS PER SQUARE METER

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

LI 00 18.13 • 41 .51 1 .16 1 . 00 36.63 .50 .34 1.47 .73 1 OD A LI 00

LI 1 5 17.39 -. 33 -.40 1 • 08 . 93 37.73 1 .60 1.10 1 .60 . 80 10D A LI 15

LI 18 18.73 1.01 1.26 .99 . 85 35.43 -.70 -.48 1.50 .75 100 A 1118

LI 2 2 18.93 1. 22 1.51 1.16 1.01 37.00 .87 .59 1 .96 .98 1 OF A LI 22

LI 25 13.67 -4. OS -5.01 2.74 2. 38 35.87 -.27 -.18 5.78 2 • 88 1 OD * LI 25

LI 41 17.75 . 03 . 04 1 .62 1 .40 36.47 . 33. .23 1 .42 .71 1 OD A LI 41

LI 4 8 18.60 .89 1.10 1.18 1.03 37.87 1 .73 1 .19 1 .68 • 64 1 OD A LI 46

LI 57 18.83 1.12 1 . 39 1.53 1.33 37.60 1 .47 1 .00 2.77 1 .38 1 OD A LI 57

LI 5 9 14.49 -3. 23 -3.99 .78 . 68 30.50 -5.63 -3.86 l .75 • 87 1 OD X L! 59

LI 63 17.20 -. 51 -.63 1.40 1.21 35.10 -1 .03 -.71 2.81 1 • 40 1 0 D A LI 6?

LI 66 16.73 -. 98 -1 .21 1 .22 1 . 06 33.97 -2.17 -1.48 2.27 1.13 1 on A LI 66

LI 76 18.80 1 . 09 1 .35 1 .01 . 88 37.07 .93 • 64 1.98 . 99 1 OD A LI 76

LI 85 18.57 . 85 1 . 06 .98 . 85 36.70 .57 . 39 2.09 1 . 04 1 OD A LI 85

LI 90C 16.67 -1 . 05 -1.29 1.37 1.19 35.23 - .90 -.62 2.22 1.10 1 OD a LI 90C

LI 90 R 18.20 . 49 . 60 1 . 05 .91 37.17 1 .03 .71 1.71 • 85 lor A LI c OR

LI 94 18.43 .72 . 89 1 .04 .90 36.31 .17 .12 1.26 .63 1 OD A LI 94

L21 7 17.37 -. 35 -.43 • 69 . 60 34.20 -1 .93 -1 .32 2.11 l . 05 1CD fi L? 3 7 L2 2 4 17.87 . 15 . 19 1.41 1. 22 38.87 2.73 1 .87 2.39 1.19 1 OD A L2 2 4 L226B 17.70 -.01 -.01 1.03 . 89 36.31 .18 .1 2 1.54 • 77 1 OD A L226B

L226C 18.00 . 29 . 36 1 .77 1.54 38.07 1.93 1 .32 3.34 1 .66 1 OD A L226C

L2 3 3 17.37 -. 35 -.43 1 . 03 . 89 33.65 -2.48 -1 .70 1.16 • 56 1 OD A L23?

L241 18.94 1 .23 1 .52 1.24 1 . 08 34.87 -1 .27 -.87 1 .06 .97 1 0 D A L241 L255 17.1 4 -.57 -.71 .76 • 67 33.33 -2.80 -1 .92 1 .65 . 8? 20D A L255 L257A 17.67 -.05 -.06 1 . 40 1.21 36.20 .07 .05 2.46 1 .22 1 0 D 0 I.257A L257B 17.87 .15 .19 1 .68 1 . 46 36.13 -.00 -.00 1.55 • 77 1 OD A L257B

L257C 18.13 • 42 . 52 1 .19 1 . 03 36.47 .33 • 23 1 .^3 .86 1 OD ( L257C

L262 17.67 -.05 -.06 • 82 . 71 36.47 .33 • 2 3 1.97 • 98 1 OD A L2 62 L275 16.51 -1.21 -1.49 1 .52 1 . 32 37.80 1 .67 1 .14 3.47 1 • T 3 1 CD A L2 ”5 L280 18.73 1 • 02 1 . 26 1.04 . 90 36.65 .52 .36 2.00 .99 1 OD A I 260 L285 16.83 -.88 -1.09 1 . 29 1.12 38.17 2.04 1 .40 2.83 1 .41 1 OD A L2 8S L309 16.45 -1.27 -1 .57 1.15 1 . 00 34.52 -1.61 -1.11 2.58 1 .28 1 OD A L? 09 L341 17.70 -.01 -.01 .84 . 34.30 -1.83 -1.26 1 . 32 • 66 1 CD A L3 4

1

L352 16.27 -1.45 -1.79 .58 . 50 33.38 -2.75 -1 . 89 2.39 1.19 1 OD A L? 5 2 L370 17.13 -.58 -.72 1 . 06 .92 34.83 -1.30 -.89 1 .71 . 85 1 OD A t 3 "*8 L5 6 7 16.07 -1.65 -2. 04 1 .36 1.18 36.80 .67 .46 1.74 . 87 1 OD A L567

L575 18.37 .66 .82 • 64 . 55 36.59 .46 .31 2.25 1.12 1 OD A L

C 7C L5 8

1

17^30 -.41 -.51 1.22 1 • 06 35.40 -.73 -.50 2.26 1.1? 1 OD A T 581 L587 17.60 -.11 -.14 1.00 . 87 37.53 1.40 .96 1 .?? • 61 1 OD A L 56 7

GR . MEAN • 17.71 PSI GRAND MEAN • 36.13 PSI TEST DETERMINATIONS • l c SD MEANS • .81 PSI SD AF MEANS • 1 .46 PSI 35 LARS IN GRAND MF AN S AVERAGE SDR • 1.15 PSI AVERAGE SDR 2.01 PSI GR. MEAN - 122.1 KILAPASCAL GRAND MEAN • 249.1 KTLAPASCAL

L337 15.20 -2.51 -3.11 • 77 . 6

T 33.33 -2.80 -1 .92 1 .41 • 70 1 OR L"7 37 TOTAL NUMBER OF LABORATORIES REPORTING * 39

Best Values: H62 18.0 + 1.4 psl

1139 36.1 + 2.1 psi

The following laboratories were omitted from the grand means because of extreme test results: 125.

8
REPORT NO. 5| S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 19^8 ANALYSIS T10-2 TABLE 2 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS-76. BURSTING STRENGTH OF PAPER - PERKINS MODEL C-A OR C WITH AIR OR HYDRAULIC CLAMPS

LAB MEANS ct>0 RUINATES

CODE F H62 H39 MAJOR MINOR

1125 » 1 3.67 35.87 -1 .28 3.85

LI 59 X 14.49 30.50 -6. 27 1 .70 L337 1 5.20 33.3 3 34 1.72

L5 6 7 o 1 6. 07 36.80 .23 1 .76 L352 o 16.27 33.38 -3. 03 .70 L309 0 16.45 34.52 -1 • 88 .82 L275 o 16.51 37.80 1 . 31 1.59

L! 9 0C o 16.67 35.23 -1.14 .78

LI 66 0 16.73 33.97 -2.34 . 40 L285 o 16.83 38.17 1.75 1 .37 L370 0 17.13 34 . 83 -1 .40 • 23 L255 0 17.14 33. 3 3 -2.85 -. 15

LI 63 0 17.20 35.10 -1.13 .23

L501 0 17.30 35.40 -.81 .21 L233 0 17.37 33.65 -2.49 -.29

L21 7 0 1 7.37 34.2 0 -1.96 -.15

LI 15 o 1 7. 39 37.75 1 .47 .72

L56 7 o 1 7.60 37. 53 1 . 33 . 46 L262 o 1 7.67 36.47 .31 . 1 3 L257A 0 17.67 36.20 .05 . 06

L 3 4

1

0 17.70 34.30 -1.78 -.45 L226B o 1 7.70 36.31 . 1 7 . 06

LI 4 1 0 17.75 36.47 . 33 . 05 L224 0 17.87 38. 87 2.68 .54 L257B o 1 7.87 36.1 3 • 04 -.15 L226C 0 1 8.00 38.

0

7 1 .94 • 21

LI 00 0 18.13 36.63 . 59 -.20

L257C 0 18.13 36.47 .43 -.32

LI 9 OR e 18.20 37.17 1.12 -.21 L575 0 18.37 36.59 • 61 -.52

LI 94 0 18.43 36. 31 .35 - .65

LI 85 0 l 8.57 36.70 .76 -.68

LI 4 0 0 1 8.60 37. 87 1.90 -.42

LI 1 8 o 1 8.73 35. 43 -.42 -1.16

L2 8 0 0 18.73 *6. 65 .76 -.86

LI 76 0 18.80 37.07 1.18 -.82

LI 5^ 0 18.83 37.60 1.70 -.71

LI 22 0 18.93 3^.00 1 .15 -.96

L ? 4 1 0 1 8.94 34 . 87 -.92 -1 .51 GMEANS : 17.71 36.1 3 95% ELLIPSE: 3. 89 1 .92

AVG

R. SDR VAR PR0PERTY---TE ST INS5TR1 2.63 1 0 D BURSTING STRENGTH UP TO

• 78 10D BURSTING STRENGTH UP TO

. 69 10H BURSTING STRENGTH UP TO 1.02 1 0 D BURSTING STRENGTH UP TO

.84 1 0 D BURSTING STRENGTH UP TO

1 .14 10D BURSTING STRENGTH UP TO

1 .52 1 OD BURSTING STRENGTH UP TO 1.15 1 0 D BURSTING STRENGTH UP TO 1.09 1 0 D BURSTING STRENGTH UP TO

1.26 1 0 D BURSTING STRENGTH UP TO

.88 10D BURSTING STRENGTH UP TO

• 75 1 0 D BURSTING STRFNGTH UP TO

1.31 1 0 D BURSTING STRENGTH UP TO

1 . 09 1 OD BURSTING STRENGTH UP TO

.74 1 OD BURSTING STRFNGTH UP T0

. 83 1 OD BURSTING STRENGTH UP TO

.87 1 0 D BU RSTING STRENGTH UP TO .74 1 0 D BURSTING STRENGTH UP TO

.84 10D BURSTING STRENGTH UP TO

1.22 1 0 D BURSTING STRFNGTH UP TO

.69 1 0 D BURSTING STRENGTH UP TO .83 1 OD BURSTING STRENGTH UP TO

1 . 06 1 0 D BURSTING STRFNGTH UP TO 1.20 1 OD BU RSTING STRENGTH UP TO 1.12 10D BURSTING STRENGTH UP TO

1 .60 10D BURSTING STRENGTH UP TO

. 87 1 OD BURSTING STRENGTH UP TO

.94 1 0 D BURSTING STRFNGTH UP TO

. 08 1 OD BURSTING STRENGTH UP TO

.83 1 0 D BURST ING STRENGTH UP TO

.77 1 0 D BURSTING STRENGTH UP TO

.95 1 0 D BURSTING STRENGTH UP TO

.93 1 0 D BURSTING STRENGTH UP TO .80 1 0 D BURSTING STRFNGTH UP TO

.95 1 0 D BURST ING STRENGTH UP TO

.93 1 0 D BURSTING STRFNGTH UP TO 1.35 1 0 D BU RSTING STRFNGTH UP TO

.99 10 F BURSTING STRENGTH UP TO

1 .03 1 0 D BURSTING STRENGTH UP TO

1 .00 WITH GAMMA • 75 DEGREES

NT- - -CONDI T I ON

S

45 PSI . PERKINS CA OR c. AIR CLAMP

45 PSI , PERKT NS CA OR C, AIR CLAMP

45 PSI, PERKINS AH. HYDRAULIC CLAMP

45 PSI , PFRKI NS CA OR c. AIR CLAMP

45 PSI , PERKINS CA 0 R C. AIR CLAMP

*5 PSI , PERKINS CA OR C, ATR CL * M P 45 PSI , PERKINS CA OR C, AIR CLAMP

45 PSI . PFRKINS CA OR C, ATR CLAMP

45 PSI , PERKINS CA OR ATR CLAMP

45 PSI , PERKINS CA OR C, ATP CLAMP

45 PSI , PE RK T NS CA OR C. AIR CLAMP

45 PSI , PERKINS CA OR C. ATR CLAMP

45 PSI. PERKINS CA OR C, AIR CLAMP

45 PSI . PERKINS CA OR C, AIR CLAMP

45 PSI , PFRKINS CA OR C. AIR CLAMP

45 PSI , PERKINS CA OR c. AIR CLAMP

45 PSI . PERKINS CA OR C, ATP CLAMP

45 PSI , PERKINS CA OR C. AIR CLAMP

45 PSI , PERKINS CA OR c. AIR CLAMF

45 PSI , PERKINS CA OR C, AIR CLAMP

45 PSI , PERKINS CA OR C, AIR CLAMP

45 PSI . PERKINS CA OR C, AIR CLAMP

45 PSI , PERKINS CA OR C, AIR CLAMP

45 PST , PERKINS CA OR c. AIR CLAMP

a 5 PSI , PFRKINS CA OR C, ATR clamp

45 PSI , PERKINS CA OR C, AIR CLAMP

45 PSI . PERKI NS CA OR C. A IR CLAMP

45 PSI , PERKINS CA 0 P C. AIR CLAMP

45 PSI , PFRKINS CA OR c. AIR CL AMP

45 PSI , PERKINS CA OR C, AIR CLAMP

45 PSI , PARKINS CA OR C. AIR CLAMP

45 PSI , PERKINS CA OR c. AIM CLAMP

45 PST , PERKINS CA OR C. ATR CLAMP

45 PSI , PERKINS CA OR AIR CLAMP

45 PSI , PFRKT NS CA OR C, AIR CLAMP

45 PSI , PFRKINS CA OR C, AIR CLAMP

45 PSI , PFRKINS CA OR C. AIR CLAMP

45 PSI , PERKINS C » H[.CLAMP .TRANSDUCE

45 PSI , PF RK I NS CA OR C. AIR CLAMP

9
KIL0PRSCRL

220

230

240

250

260

270

280

BURSTING- STRENGTH. MODEL C-R

SAMPLE H62 = 17.7 PSI SAMPLE H39 = 36.1 PSI

SAMPLE H62 = 122 K I L0PASCAL SAMPLE H39 = 249 K I L0PASCAL

PSI

i 1 1 1 1 1

1 90 100 1 10 120 130 1 40 150

KIL0PRSCRL

10
REPORT NO. £13 TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY IS’S ANALYSIS Tll-1 TABLE 1 BURSTING STRBNGTH, HIGH RANGE. PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTH OF PAPER - PF REINS MODEL C OR C-A

SAMPLE PRINTING SAMPLE KRAFT TEST D.'• 15 LAB H40 1S1 GRAMS PER SQUARE METER H07 147 GRAMS PER SQUARE METER

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

L100 5 3. 8 -.5 -.26 l .9 .71 70.3 -3. 3 -.74 6.0 .88 1 ID 6 LI 00

LI 03 55.3 1 .

0

.52 2.1 . 80 75.1 1 .

4

.32 4.0 .59 IIC 0 LI 03

LI 07 56.7 2. 4 1.24 4.2 1. 59 76.7 3.0 .68 9.8 I .44 lie 0 LI 07

LI 1 0 53. 6 -.8 -.40 3.2 1.22 77.2 3.5 .80 6. 6 .97 1 1 D 8 LI 18

LI 22 55. i .7 .38 2.7 1.02 71.5 -2.1 -.48 4. 5 .66 1 IF 6 LI 22

Li 2

8

56.5 2.1 1.11 3.2 1.24 72.9 -. 8 -.18 6. 7 .98 1 ID 6 Lt 20

LI 4 1 55.4 1 . 1 .57 2.7 1.04 74.8 1 . 1 .25 8. 3 1 .22 1 ID 0 LI 41

LI 48 56.1 1.7 .90 3.2 1.22 77.6 3.9 .89 6. 7 .98 1 ID 0 LI 48 U 59 50.

1

-4. 3 -2.21 2. 3 . 88 65.3 -8.4 -1 .88 6.4 .95 1 ID 0 LI 59

LI 70 54.8 . 5 .24 .9 . 35 69.0 -4.6 -1 . 04 2.4 . 35 1 1C 0 LI 70

LI 74 62.2 7.9 4.08 1 .6 .60 74.9 1.3 • 29 4.9 .72 1 ID X LI 74

LI 76 55.1 . 8 .41 3. 7 1.40 67.5 -6. 1 -1 .37 5.0 .74 1 ID 6 LI ^6

Li 02 55.9 1 .

6

. 83 2.5 .95 77.5 3.9 .87 6.0 . 88 1 ID 0 LI 8? L21 0 56.6 2.3 1 .19 3.8 1.46 75.1 1 .

5

.33 6.4 .94 1 1 D 0 L218

L2 3 2 54.1 -. 2 -.12 3.3 1.27 69.0 -4.6 -1 .04 9.9 1 .45 lie 0 L2 12 L237A 54.5 . 1 . 07 1 .4 .52 78.9 5. 3 1.19 4. 1 .61 lie 0 L237A

L237B 56. 1 1.7 .90 1.2 . 47 78.2 4.5 1 .02 3.1 .45 1 1C 0 L237B

L2 3 8A 51 .2 -3. 1 -1.61 3.3 1.25 74.1 . 4 • 10 8.2 1.21 11 Y 0 I238A

L243 53.0 -1.4 -.71 2.8 1.08 74.0 . 4 .09 6.5 .96 1 1C 0 L2A3 L248 55. 1 . 7 .37 2.4 . 93 71 .7 -1.9 -.43 7.2 1 . 06 1 IE 0 L248

L27 3 51.3 -3. 1 -1.59 1 .4 .55 75.4 1.7 .39 3. 8 .56 UC 0 L273

L2 79 55. 8 1.5 .76 1.9 .74 79.2 5. 5 1.25 4.3 .64 lie 0 L2**9 L280 54. 3 .0 . 01 2. 8 1.08 76.2 2.6 .50 6.2 .91 1 ID 0 L280

L294 56.2 1.9 .97 2.2 . 85 NO DATA REPORTED FOR SAMPLE H07 lie M L294

L3 0 3 51.4 -3.0 -1.54 1.9 .73 65.0 -8.7 -1 . 95 6.5 .96 1 1C 0 L3C3 L330 56.2 1.9 .99 2.6 .9 + 76.4 2. 8 .62 6.3 .94 1 1C 0 L330

L331 56.1 1 .

8

.93 3.5 1.33 77.7 4. 0 .90 Q. 3 1 .23 1 1C 0 L331

L3 3 3 52.6 -1.7 -.90 3.6 1.37 68 . -5. 0 -1.12 6.8 1 .01 lie 0 L333

L3 3 4 56.6 2. 2 1.16 1 .+ . 66 72.9 -.7 -.16 10.

1

1.49 1 ID 0 L324 L344 54.7 . 4 .19 1.8 . 68 76.8 3. 1 .71 8. 7 1 .28 1 1C 0 L344 L356 54.2 -.1 -.07 2.9 1.12 75.8 2.1 .47 9.0 1.33 lie 0 L356

L362 50.7 -3.7 -1 .90 2.5 .95 60.4 -13.2 -2.97 6. 2 .91 1 ID * L36 ? L378 54.2 -.1 -.07 3.2 1. 21 74.6 1.0 .22 11.5 1.70 1 1 D 0 L37e

L392 51.0 -3.3 -1.73 2. 6 . 99 72.8 -.9 -.19 5.9 . 87 lie 0 L392 1565 52.8 -1.5 -.78 1.5 . 59 70.7 -2.9 -.65 3.5 .52 1 1 D 0 L565

L567 53.9 -.4 -.21 2.6 1.00 78.5 4.8 1 .08 8. 7 1 .28 1!D 0 L567

L575 57.3 3.0 1 . 54 4.0 1 . 51 79.1 5.4 1 .22 10.3 1.5? 1 ID 0 L5 75 L604 53.9 -.4 -.22 2.9 1.10 74.6 1.0 .21 9.7 1 .4-* 1 1C 0 L6 04

OR. MEAN 54.3 PSI GRAND MEAN • 73.7 PSI TEST DETERMINATIONS • 15

SD MEANS 1.9 PSI SD 0F MEANS • 4.5 PSI 36 LABS IN GRAND MEANS

AVERAGE SDR - 2.6 PSI AVERAGE SDR • 6.9 PSI GR . MEAN • 374.6 KILOPASCAL GRAND MEAN • 507.8 KIL0PASCAL

L242 57. 8 3. 5 1.60 2.1 . 82 77.3 3.6 .62 5.1 .75 1 IT 124?

L251 50.4 -3.9 -2. 03 2.6 .97 69.2 -4.4 -1 .00 6. 8 1 .01 11V I 251 L393 56.9 2.5 1.31 2.9 1.11 78.4 4.

7

1 .07 5.3 .78 11H • L393

L394 64.4 10.1 5.22 2.2 . 84 88.0 14.3 3.22 3. 0 .44 UH * L394 L570 54.7 . 3 .17 2.4 .93 72.5 -1.1 -.25 7. 2 1.07 1 1H L570

L576 57.3 2.9 1.52 2.5 .95 79.6 6. 0 1.34 5. 0 .74 IIP LS76

L593 57.7 3.4 1.76 3. 3 1.24 77.5 3.9 .87 8. 6 1.27 11J L593 TOTAL NUMBER OF LABORATORIES REPORTING • 45

Best Values: H40 55+3 psi

HO 7 74 + 6 psi

11
REPORT NO. SIS TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS Tll-1 TABLE 2 BURSTING STRENGTH, HIGH RANGE, PSI TAPPI STANDARD T403 OS- 76, BURSTING STRENGTH OF PAPER - PERU NS MODEL C OR CA

JANUARY IS"*©

COORDINATES AVG

CODE F H40 H07 MAJ0B MINOS R. SDR VAR PROPERTY-- -TEST INSTRUME>

LI 59 0 50.1 65.3 -9.2 1 • 8 .91 11D BURSTING STRENGTH 40 . 100

L251 50.4 69.2 -5.3 2.6 .99 11V BURSTING STRENGTH 40 - 1 00 L36 2 « 50.7 60.4 -13.7 -.1 .93 1 1 D BURSTING STRENGTH 40 - 100 L392 0 51 .

0

72.8 -1.7 3.0 .93 lie BURSTING STRENGTH 40 - 1 00 L230A 0 51 .

2

74.1 -.4 3.1 1.23 11Y BURSTING STRENGTH 40 “ 1 00

L273 o 51.3 75.4 . 8 3.4 .55 lie BURSTING STRENGTH 40 . 1 00 L303 0 51.4 65. 0 -9.2 . 5 .85 lie BURSTING STRENGTH 40 - 1 00 L333 0 52.6 68.7 -5. 3 .3 1 .19 UC BURSTING STRENGTH 40 - 1 00 L565 0 52.8 70.7 -3.2 • 6 .55 11 D BURSTING STRENGTH 40 - 1 00 L243 o 53.0 74.

0

-.0 1 .4 1.02 11C BURSTING STRENGTH 40 - 1 00

LI 1 8 0 53.6 77.2 3.2 1 .7 1.10 11 D BURSTING STRENGTH 40 • 1 00

LI 00 0 53.8 70.3 -3.3 • .4 .79 11 D BURSTING STRENGTH 40 - 100

L6 0 4 o 53.9 74.6 . 8 .7 1 .27 UC BURSTING STRENGTH 40 - 100 L56 7 0 53.9 78.5 4.5 1 .7 1.14 11D BURSTING STRENGTH 40 - 100 L232 0 54,1 69.0 -4.8 -1.0 1.36 UC BURSTING STRENGTH 40 - 1 00 L378 0 54.2 74.6 .9 ,4 1.45 UD BURSTING STRENGTH 40 • 1 00

L3 5 6 0 54.2 75.0 2.0 .7 1.22 UC BURSTING STRENGTH 40 - 100

L2 80 0 54. 3 76. 2 2.5 .7 1.00 UD BURSTING STRENGTH 40 - 1 00 L237A 0 54.5 78.9 5.1 1.3 .56 UC BURSTING STRENGTH 40 - 1 00 L57 0 54.7 72.5 -1 .0 -.6 1.00 UH BURSTING STRENGTH 40 - 1 00 L344 0 54.7 76.8 3.1 .5 .98 UC BURSTING STRENGTH 40 • 1 00

LI 7 0 0 54.8 69.0 -4.3 -1.7 .35 UC BURSTING STRENGTH 40 • 100 L248 0 55. 1 71.7 -1.6 -1 .2 .99 HE BURSTING STRENGTH 40 - 100

LI 22 0 55.1 71 .5 -1.8 -1.3 . 84 1 1 F BURSTING STRENGTH 40 - 1 00

LI 76 0 55. 1 67. 5 -5.7 -2.4 1.07 UD BURSTING STRENGTH 40 - 100

LI 03 0 55.3 75.1 1 .6 - .6 .70 UC BURSTING STRENGTH 40 . 1 00

LI 41 0 55.4 74. 8 1.4 -.8 1.13 UD BURSTING STRENGTH 40 - 1 00 L279 o 55.8 79.2 5. 7 • 1 .69 UC BURSTING STRENGTH 40 - 1 00

LI 82 0 55.9 77.5 4.2 -.5 .91 1 1 D BURSTING STRENGTH 40 - 1 00

LI 4 8 0 56.1 77.6 4.3 -.6 1.10 UD BURSTING STRENGTH 40 - 1 00 L237B 0 56. 1 78.2 4.9 - .4 .46 UC BURSTING STRENGTH 40 • 1 00 L331 o 56. 1 77.7 4 .4 -.6 1.28 UC BURSTING STRENGTH 40 - 1 00 L294 M 56.2 .es UC BURSTING STRENGTH 40 - 100 L330 0 56.2 76.4 3.2 -1 .1 .95 UC BURSTING STRENGTH 40 - 100

LI 28 o 56.5 72.9 -.2 -2.3 1.11 1 1 D BURSTING STRENGTH 40 - 1 00

L3 34 0 56.6 72.9 -.1 -2.3 1.07 1 1 D BURSTING STRENGTH 40 . 1 00

L2 1 8 0 56.6 75.1 2.1 -1.0 1.20 11 D BURSTING STRENGTH 40 - 100

Li 07 0 5S.7 76.7 3.6 -1 .5 1.51 UC BURSTING STRENGTH 40 - 1 00 L39 3 56.9 78.4 5.3 -1 . 1 .95 1 1 H BURSTING STRENGTH 40 - 100 L57 6 57.3 79.6 . 6.6 -1 .2 . 84 1 1 P BURSTING STRENGTH 40 - 100 L575 0 57. 3 79. 1 6.1 -1 .4 1.52 UD BURSTING STRENGTH 40 . 1 00 L59 3 57.7 77.5 4.7 -2.2 1.25 11 J BURSTING STRENGTH 40 - 1 00 L242 57.8 77. 3 4.4 -2.3 .78 11T BURSTING STRENGTH 40 - 1 00

LI 74 X 62.2 74.9 3.4 -7.2 .66 11 D BURSTING STRENGTH 40 - 1 00 L394 64.4 80.0 16.6 -5.7 .64 UH BURSTING STRENGTH 40 • 1 00 GMFANS: 54.3 73.7 1.00 95% ELLIPSE: 12.0 3.9 WITH GAMMA • 74 DEGREES

PSI. PERKINS CA, AIR CLAMP

PSI, L*W, MANUAL CLAMP , 20C,65% RR PSI. PFRKINS CA, AIR CLAMP

PSI, PERKINS C. MANUAL CLAMP

PSI, PFRKINS CA, AIR CLAMP

PSI, PERKINS C, MANUAL CLAMP

PSI, PERKINS C, MANUAL CLAMP

PSI, PERKINS C. MANUAL CLAMP

PSI, PERKINS CA, AIR CLAMP

PST. PFRKINS C. MANUAL CLAMP

PSI, PERKINS CA. AIR CLAMP

PSI. PERKINS CA, AIR CLAMP

PSI. PERKINS C, MANUAL CLAMP

PSI, PERKINS CA, AIR CLAMP

PSI, PERKINS C, MANUAL CLAMP

PSI. PERKINS CA, AIR CLAMP

PST, PERKINS C. MANUAL CLAMP

PSI. PERKINS CA, AIR CLAMP

PST, PERKINS C, MANUAL CLAMP

PSI, PERKINS AH. HYDRAULIC CLAMP

PSI, PERKINS C. MANUAL CLAMP

PSI, PERKINS C, MANUAL CLAMP

PST. PERKINS C, MANUAL CLAMP

PSI. PFRKINS C. R. CLAMP, TRANSDUCER

PST. PERKTNS CA. ATR CLAMP

PSI, PERKTNS C. MANUAL CLAMP

PSI, PERKINS CA, AIR CLAMP

PSI, PERKINS C, MANUAL CLAMP

PSI. PERKINS CA, AIR CLAMP

PSI. PERKINS CA, ATR CLAMP

PSI. PERKINS C, MANUAL CLAMP

PSI, PERKTNS C. MANUAL CLAMP

PSI, PERKINS C. MANUAL CLAMP

PSI, PERKINS C, MANUAL Cl AMP PSI. PERKINS CA, AIR CLAMP

PSI, PFRKINS CA. AIR CLAMP

PSI. PERKTNS CA. AIR CLAMP

PSI. PFRKINS C, MANUAL CLAMP

PSI, PERKINS AH. HYDRAULIC CLAMP

PST, PERKTNS LC. MANUAL CLAMP

PSI, PERKINS CA, AIR CLAMP

PSI. PERKTNS JUMBO, HAND DRIVFN

PST. L^W, MANUAL CLAMP

PSI, PERKT-NS CA. ATR CLAMP

PSI, PFRKINS AH, HYDRAULIC CLAMP

12
KIL0PASCRL

400

440

480

520

560

600

BURSTING STRENGTH, HIGH RRNGE

SAMPLE H40 = 54.3 PSI SAMPLE H07 = 73.7 PSI

SAMPLE H40 = 375 K I L0PASCAL SAMPLE H07 = 508 K I L0PASCAL

PSI

2^0

T 3?0T 3IdOT 4^0

T 4T0

' 4^0

KIL0PRSCRL

13
RFPART

LAB CADE

LI 00

LI 03

LI 07

LI 1 5

LI 1 8

LI 21 LI 2

2

LI 24

LI 26

L 1 28

LI 3 4

LI 3 9

LI 4 1 LI 4 5 LI 48

LI 50

LI 5

1

LI 53

LI 57

LI 5 8

LI 59

LI 62

LI 6 3

LI 66

LI 6 7 1170

LI 73

B

Li 74 S

LI 7 6

LI 8? A

LI 82T

LI 83

LI 85

LI 89

LI 90C

LI 90R

L 1 9 1 LI 94

LI 95 L206

L207

L21 1 L21 2 L21 3 L21 7 L223

L224

L225

L2 26B L226C

L2 2 8 L232

L233

L236

L2 3 L237B

l 23 8 A L2 41 L243

1244 L248

124 9 1254

L255

L25 7A

N0. 51S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1^8

ANALYSIS T15-1 TABLE 1 TEARING STRENGTH, GRAMS

TAPPI STANDARD T414 TS-65. ANY MAKE EL MENDARF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

SAMPLE

H21 106 GRAMS PRINTINGi PER SQUARE METER

SAMPLE

E10 70 GRAMS WRITING

PER SQUARE METF.R TFS r D. • 1 5 MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DFV SDR R. SDR VAR F L Kb

63.0 -1.4 -.35 1 .8 • 84 52.7 -4. 5 -1.35 1 .

0

.67 1 5 M e LI OC 62.3 -2.1 -.53 1.3 . 63 57.9 . 7 .22 1.2 . 84 15T a LI 03 67.7 3.3 . 86 4.9 2.29 58.1 .9 . 28 4.

5

7 , 08 1ST 0 LI 0-

59. 8 -4.6 -1.19 1.6 . 77 55.6 -1.6 - . 47 1 .

4

.97 1 5C A LI 15 63.1 -1 .

3

-.32 1.6 • 77 f 4.7 -2.5 - .75 1.0 .67 1 £ T A LI 1 8

65. 1 . 7 .17 2.5 1.17 59.6 2.4 .71 1.4 . 93 15T A LI 23 63.5 - . 9 -.24 1.8 . 86 57.0 -.2 -.06 1 .0 .69 2 5C e LI 22 63.7 - .7 -.17 1.7 . 78 56.3 -.9 -.28 1.0 15T A LI 24 66.9 2.5 .64 1.5 . 68 58.5 1.3 . 38 1 . o . 68 1 5T A LI 26 64.1 -.3 -.07 1.4 • 64 58.6 1 • 4 .41 . 8 .57 1ST 0 LI 28 72.3 7.9 2. 03 1.6 • 74 63.3 6.1 1 .80 1.9 1 .30 1 5T A 1134

66. 8 2.4 .62 1.9 • 89 58.5 1 .3 .38 1 .

2

. 81 15T A LI 63.3 -1 . 1 -.29 2. 4 1.13 56.7 - . 5 -.16 1 .

2

. 84 1 5T A LI 41 55. 2 -9.2 -2.36 3. 8 1 • 80 53.2 -4. 0 -1 .19 2.6 1.78 1ST > T 2 45 61.9 -2.5 -.65 1.9 • 90 56.8 -.4 -.12 2.7 1 .85 1 5T A LI 48 54.6 -9.8 -2.52 1 .3 • 61 52.2 -5. 0 -1 .48 1 .5 1 • 04 1 5T » LI 50

78. 1 13.7 3.53 2.5 1.17 68.5 11.3 3.36 1 .

4

.93 1 5 C Y 1.1 51 65.1 . 7 .19 1.7 • 79 57.9 . 7 .2? 1 .

4

.98 15C 8 LI 53 62.9 -1 .

5

-.39 1.8 . 85 55.4 -1 .

8

-.53 1.2 .81 1 5 T A LI 57

64.

4

. b . 00 2.2 1. 01 58.7 1 .

5

.43 2. 8 1 .91 15R A LI 58

69. 2 4 .

8

1 .25 1.7 . 80 58.6 1 • 4 • 40 2.2 1 .53 1 5L A LI 59 62.7 -1.7 - . 44 1.4 . 68 55.9 -1.3 -.39 1 • 2 . 80 15T A LI 62 61.5 -2.9 -.74 2.5 1.19 55.3 -1 .

9

-.57 1 • 6 l • 08 1 5T A LI 63 63.5 -.9 -.22 1.7 . 79 56.6 -.6 -.ie 1 .

4

. 93 15T A LI 66 67.3 2.9 . 76 1.6 • 77 60.9 3.7 1 . 09 2.0 1 . 34 15C A 1.16 7

67.

0

2.6 .67 . 4 . 1 8 59.1 1 .

9

• 55 . 3 . 1 8 1 5T A LI 64.2 -.2 -.05 1.2 . 57 60.9 3.7 1.11 1.2 .80 1 5 T A LI 738 54.9 -9.5 -2.43 2. 8 1. 32 50.7 -6.5 -1 .94 2 . c 1 • 98 1 5 T A LI 74 S 66.4 2. 0 . 52 3. 3 1.55 57.7 . 5 .16 3 .

0

• *M 1 5T A L! “*6 61.7 -2.7 -.70 2. 2 1.01 51.7 -5.5 -1 .62 1 .

4

.68 1 5 A a LI 82 A 65.6 1 .2 .31 2.4 1.12 57.4 . ? . 06 1 .

7

1.15 2 5T A LI 82T

64. 2 -.2 -.05 2. 3 1 . 07 57.5 . 3 • 08 1 .

4

.96 1 5T A LI 8? 66.7 2.3 . 59 3. 0 1 . 40 56.1 -1 • 1 -.32 1 .

3

• 89 1ST A LI 95 66.3 1.9 . 50 1.8 • 84 55.1 -2.1 -.63 1 • 2 • 84 1 5T r LI 99 62.3 -2. 1 -.55 2. 1 . 99 54.3 -2.9 -.87 . 6 .41 1ET A I 1 90C 62.4 -2.0 -.51 1 .

2

. 55 55.9 -1 . ? -.38 1 .

3

.91 15C A LI c OR 74.9 10.5 2 • 7 1 2.0 . 93 52.6 -4.6 -1.36 ?. ? 1 . 50 1 T 0 » ici 64. 8 . 4 . 1 0 1 .8 . 83 57.9 . 7 .22 , 6 .41 1 e T A 1.1 94 67.7 3.3 . 86 1 .

7

. 78 55.3 -1 .9 - • c 5 1.2 • 84 1 SC rt I 1 95

67. 3 2.9 .75 1.7 . 81 61.5 4.

3

1 .27 3.6 1.11 1 6P p. 1.206 70.3 5.9 1 . 51 2.0 .96 44 .

8

-12.4 -3.68 2.3 1 . 66 1 C R 0 l ?c6 3.7 -.7 -.17 2.6 1. 30 57.7 .5 . 1 6 1 . 5 1 . 05 1 C P A L2S 1 59.9 -4.5 r 1 • 1 5 2.4 1.13 54.7 -2.5 -.76 1 . 2 • 84 1ST P L? 1 ? 66.5 2.1 . 55 1 • 2 . 56 58.9 1.7 .51 1.0 .71 1 5T A L? 1 3 62.

8

-1.6 -.41 1.7 . 78 55.0 -2.2 -.66 1.0 1ST P L217 65.7 1 .3 .33 2.5 1.16 56.2 -1 .

0

-.31 1 • 0 . 70 1 5 R A L 2 2 3 60.5 -3.9 - .99 1 . 8 . 85 52.5 -4. 7 -1 .38 1 . 0 .68 1 5T O L224 75.6 11.2 2.88 1 .4 . 66 63.1 5.9 1 .76 . 8 . 57 1ST c 1.2 25 64.8 . 4 . 1 0 2.0 .92 56.0 -1 . 2 -.76 1.5 1 .03 1ST A I.226B 63.

1

-1 .3 -.34 2.9 1 . 37 56.0 -1.2 -.36 2. 0 1 .37 1 5T A L226C. 59.3 -5.1 -1.32 2.2 1 . 01 53.0 -4.2 -1 .25 1 . ? . 92 1ST O 1.2 r 8 62.1 -2.3 -.58 2.8 1 . 30 55.1 -2.1 -.63 1 .

0

. 2 5T A L? 3? 69.1 4.7 1 .22 i . e . 85 63.2 6. 0 ! .78 3 . 4 .97 1ST P T.2 33 57.3 -7.1 -1.83 2.9 1 . 36 49.6 -7.6 -2.26 1 . 8 1 . 22 25T P 1.2 36 67.2 2 . 8 .^2 1.7 . 78 61 . 1 3.9 1.15 5 . 5 1 . 02 1ST A L2 3"*

A

66.

0

1 . 6 • 41 1.3 • 61 58.5 1 • 3 .39 1 . 2 . 91 1 5T A L217,p 57.9 -6. 5 -1.68 1.4 . 66 52.9 -4. 3 -1 .27 1 . 3 . 89 1 5 T A L 2 38 A 69.7 5.3 1 . 37 2.7 1.27 69.6 12.4 3.68 1.5 . 99 15T X L2M

65.7 1 .

3

. 34 2.5 1.17 56.3 -.9 -.26 1.7 1.18 15T A L243 67.8 3. 4 • 88 2. 1 1 • 01 57.1 -. 1 -.04 2. 3 1.54 2 5C A L244 67.7 3.3 • 84 1.3 .62 56.4 -. 8 -.25 1 • 2 . 81 1 5 J A I 8 67.7 3.3 .84 1.7 .81 60.6 3. 4 1 . 01 1 • 1 . 77 1 5T A l c 65.5 1 . 1 .28 1.8 . 83 58.5 4 . 3 . 39 1 . 6 1 . 09 15T 0 L2‘ 4 64.7 .3 . 07 2. 0 . 91 55.9 -1 • 3 -.40 1 . 6 1 . 09 15T A L255

65. 7 1 . 3 • 34 1 • 8 . 86 59.3 2.1 .63 2.6 1 .77 1 5C A L2 5 7 A 14
RFP0RT N0 • C 1S T> PP I C0LLAB0RATI VE RFPERENCE PR0GRAM JANUARY 1970 ANALYSIS T15-1 TABLE 1 TEARING STRFNGTH, CRAMS

TAPPI STANDARD T414 TS-65, ANY MAKE FLMEND6RF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

SAMPLE PRINTING SAMPLE WRITING TEST D. - 15 LAB H21 106 GRAMS PER SQUARE METER El 0 70 GRAMS PER SQUARE METER

C0DE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

L257B 66.9 2.5 .65 2.3 1.06 57.9 . 7 .20 1.6 1 . 09 1EC 0 L257P

L257C 65. 3 .9 . 24 1.8 • 84 57.7 • 5 .16 1 .1 . 02 1 EC 0 1. 2 5 7

L259 70. 1 5.7 1 .46 2.2 1.01 64.1 6.9 2.06 1.0 , 68 15T 0 L? 59

L2 61 63.2 -1.2 -.31 2.5 1.15 56.0 -1.2 -.36 1 .

.90 1?T 0 L261 L262 62.6 -1.8 -.46 .9 . 43 56.7 -.5 -.16 .9 .62 1 5T 0 L262

L264 65. 1 .7 .17 4.1 1 • 94 48.0 -9.2 -2.73 6. 0 4.14 1 ET X L? 64 L273 65.7 1 .

.34 1.7 .78 65. 1 7.9 2.33 1.0 .66 1ET X L273

L275 68.5 4. 1 1 . 07 2.6 1 .21 58.1 # o .26 1 .

. 84 15T 0 L275

L277 58.

-5. 6 -1.44 1.5 . 69 51.3 -5.9 -1 .74 2. 1 1 .43 15T 0 1.2 77 L278 69.9 5.5 1 . 43 3. 4 1 . 58 61 .7 A. 5 1 .32 2. 3 1 .57 1 5T 0 L2 7

L279 63.2 -1 .

-.31 5.4 2.53 53.9 -3. 3 -.99 2. 1 1 .41 15T 0 L2 79 L280 68. 4 4.0 1 .03 1 • 1 . 49 55.6 -1.6 -.47 .9 .62 15L 0 L280

L281 64 .

- .4 -.10 1 .9 . 90 59.9 2.7 .8! 1.9 1 .28 1 5T 0 L281 L285 62. 1 -2.3 -.58 5.2 2.44 55.1 -2. 1 -.61 1 .

1.12 1 ST 0 1285

L288 70.6 6.2 1.61 1 .9 . 89 63. 1 5.9 1 .75 1 . 3 . 86 ISO 0 L288

L291 r 62.

-2.1 -.55 1.3 . 60 54.7 -2.5 -.73 1.3 .91 16A 6 L?9! L299 67.3 2.9 .74 2.2 1 • 02 60.9 3.7 1.11 1.9 1 .33 1ST 8 L?99

L303 53. 0 -11.4 -2.93 1.9 . 87 50.5 -6.7 -1 .98 1 .

. 89 1 EL * L30? L305 64.3 - . 1 -.03 1.2 . 57 61 .0 3. 8 1.13 1 . 1 • 7? If T 0 1.7 C 5 L309 63.9 -.5 -.14 4.5 2. 09 58. 1 . 9 .28 1 .

1 . 09 1 ST 0 L309

L31 1 65.4 1 .

. 26 4. 3 2.03 56.5 -. 7 -.22 1 . 1 . **7 1ST 8 L31 1 L31 2 62.7 -1.7 -.44 2.5 1.16 58.7 1 .

.43 1.2 . 84 1ST 0 L31 > L31 5 61.3 -3. 1 -. 80 1.6 .76 54.1 -3.1 -.91 2. 6 l .79 1ST 0 1.3 1 5 L3 21 57. 7 -6.7 -1.71 1 .

. 86 57.1 -.1 -.04 1.0 .71 1 ET « T.32-1 L328 65.2 . 8 • 21 1.9 . 89 52.6 -4.

-1 .36 1.7

\ 1.18 1ST ft L328

L331 54.5 -9.9 -2.55 2.9 1 . 35 46.5 -10. 7 -3. 1 6

1 . fl .57 1 ET » L331 L334 61 .9 -2.5 -.65 1.3 .61 54.9 -2.3 -.69 1.8 1 .21 1 5T 0 L3?a L336 65.0 • 6 .16 1 .5 .71 56.9 -. 3 -.10 .63 1ST 6 L336

L344 60. 1 -4.3 -1.10 2.3 1 . 09 53.6 -3. 6 -1.07 1.9 1 .29 1 EC 0 L34A

L34 5 59.7 -4.7 -1 .20 3.2 1. 50 53.6 -3. 6 -1.07 2.0 l .39 1ST 0 L345

L352 66. 5 2.2 .55 2.2 1 • 02 58.9 1 .7 .40 1 . 1 .73 1 EC e L 352 L360 67.2 2.8 .72 .7 . 34 60.7 3.5 1 .04 1 . S 1 • 04 1ST 8 L 36 0 L36 2 62.6 -1 .

-.46 1.3 . 61 56.6 -.6 -.18 ! . 5 .99 1 ET 0 L362 L376 64. 7 .3 . 07 1.0 . 46 60.2 3.0 .80 1.6 1.10 1 ET 0 L376

L37 8 65.6 1 .2 .31 1.3 .61 57.7 • 5 .16 1 . 7 . 80 1ST e L378

L382 67.

2.9 .76 1.9 .90 60.1 2.9 .87 .9 .63 1 =T 0 L382 L390 61.8 -2.6 -.67 3.3 1.53 55.6 -1 .6 -.47 1 .

.93 1ST 0 L 390

L392 64.9 • 5 • 14 6. 0 2. 81 56.0 -1.2 -.36 2.0 1 .37 1ST 0 L392 L396M 65.0 • 6 • 16 1.6 • 77 58.3 1 • 1 .34 1 . 1 .76 1ST 0 L3 96M

1442 72.2 7.8 2.00 2.1 • 98 66.7 9.5 2.81 1 . 7 1.18 ; sr * L*4? L484 69.0 4.6 1.19 2.2 1 . 05 60.5 3. 3 .99 1.8 1 .21 1 ST 0 1.4 84 L554 72.5 8.1 2. 09 2. 1 .97 64.4 7.2 2.13 . 7 .50 1 EC 0 L254

L56

66. 5 2. 1 . 55 3.8 1.76 65.0 7. 8 2.31 1.6 1 .10 1ST • L5 61 Lb 6 2 59.4 -5.0 -1 . 30 1.5 • 70 53.7 -3.5 -1.03 1 . 1 .76 1 ET 0 L56? L565 65.0 .6 .16 2.0 .95 56.8 -.4 -.12 1 . 1 .74 1ST 0 L5SS

L56 6 68. 1 3.

.96 3.6 1 . 68 61.7 4. 5 1 .34 2.8 1 .93 1 ET 0 L566

L56 T 66.0 1 .6 .41 2. 4 1.12 59.1 1 .9 .55 1.5 ! .02 1 EC 0 L567

L576 69.4 5.0 1 .29 2.6 1.21 58.7 1.5 .45 1 .

. 80 1ST 0 1576

L50O 62.9 -1.5 -.38 1.4 • 67 55.9 -1.3 -.38 1 .

. 80 1ST 0 L580

L58 1 68.1 3.7 .96 1.8 . 84 60.1 2.9 .87 1 . 2 .85 150 0 L581

L5 8 7 61.6 -2.8 -. ^2 2. 2 1 . 01 58.1 . 9 .28 1.2 .81 1ST 0 I 587

L598 62.4 -2.0 -.51 2.0 .95 52.8 -4,4 -1 .30 1 .7 1.13 i e r 0 T.596 L599 69.5 5. 1 1.32 3. 5 1.66 60.9 3.7 1.11 1 . 4 .95 1 5T 0 L599

L6 0 0 64.3 -. 1 -.03 1.5 • 70 57.6 , 4 .1 ? 1.4 • 93 1ST 0 T.6 00 L606 62.4 i IU o -.51 2.7 1.26 56.3 -.9 -.28 1.3 .91 1 ft 0 L606

GR. MEAN m 6 4.4 GRAMS GRAND MEAN 57.2 GRAMS TP ST1 DETERMINATIONS 1? SD MEANS m 3.9 GRAMS SO OF MEANS 3.4 GRAMS 1 14 LABS IN GRAND MEANS

AVERAGE SDR • 2.1 GRAMS AVERAQF SDR • 1.5 GRAMS

GR. MEAN * 631.5 MILLINEWTGN GRAND MEAN • 561.0 MIL LT NEWT0N

L230 61 .4 -3.0 -.78 2.5 1.18 54.1 -3. 1 -.93 1.4 .95 1 5V L2 "<0 L242 72.5 8.1 2.08 2.2 1 . 03 66.4 9. 2 2.73 1.6 1 .09 1 5U L2 ?. L251 63.5 -. 9 -.22 1.1 . 53 56.0 -1.2 -.36 1.3 .90 15K L7 1 L301 64.5 . 1 . 04 2. 1 . 97 56.7 -.5 -.16 1.5 1 . 0 ? 1 5X L3C1 L57S 66.

1.7 .45 2.4 1.10 55.1 -2.1 -.61 1.0 . 68 15V L5 75 L610 64.7 .3 .07 2.5 1.16 57.7 . 5 .16 2. 3 1 .54 15E L61 0 TOTAL NUMBER OF LABORATORIES REPORTING

Best Values: H21 65+7 grams

E10 57+5 grams

The following laboratories were omitted from the grand

mear s because of extreme test results: 191, 207. Data from the following laboratories appeared to be off

by a multiplicative factor: 575. Code 15V was assigned

temporarily to put in a factor of 2.

15

Please see the diagram on the inside of the back

cover of this report which shows how to distinguish

between an Elmendorf tear tester with DEEP CUTOUT

and an older model tester with NO CUTOUT.
REPORT NO. 51 S TAPPI COLLABORATIVE REFERFNCE PROGRAM JANUARY 1 <•-><? ANALYSIS T15-1 TABLE 2 TEARING STRENGTH. GRAMS

TAPPI STANDARD T41 4 TS-65, ANY MAKE ELMENDORF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG

CODE F H21 F 1 0 MAJOR MINOR R. SDR VAR P ROPE RTY---TEST INSTRUMENT- --CONDITIONS

L303 * 53. 0 50.5 -13.0 2.2 . 88 15L TEARING STRENGTH, STANDARD. LO RENTZ-WFTTRF

S

L331 * 54. 5 46.5 -14.5 -1 .8 .96 1ST TEARING STRFNGTH, STAND ARD, THW TNG- EL MEN D0RFC SCALF TO 1 00 ) LI 50 54.6 52.2 -10.7 2.5 .82 15T TEARING STRENGTH, STANDARD.THWING-ELMEND0RFC SCALE T 0 1 00 ) LI 74S 0 54.9 50.7 -11.4 1 • 1 1 .65 15T TEARING STRENGTH, STANDARD, THWTNG-EL <END0RF< SCALE T0 3 00 ) LI 45 * 55. 2 53.2 -9.6 2.8 1 .79 1 5 T TEARING STRENGTH, STANDARD, THWING-EL MEND0RF( SCALF TO 3 00 > L236 0 57. 3 49.6 -10.3 -1 .3 1 . 29 15T TEARING STRENGTH, STANDARD, THWING-EL 4END0RFI SCALE T0 100 ) L321 «• 57.7 57.1 -5.2 4.2 . 78 15T TEARING STRENGTH, STANDARD, THWING-EL MEND0RFC SCALE TO 100)

L238A. 0 57.9 52.9 -7.7 .9 .77 15T TEARING STRFNGTH , STANDARD, TP WING- EL <END0RF( SCALE TO 100 ) L277 0 58. 8 51 .

3

-8.

1

-.9 1 . 06 15T TEARING STRENGTH, STAND / RD,THWTNG-F.LMEND0RF( SCALF TO 1 00 ) L228 0 59.3 53.0 -6.6 . 1 .91 1ST TEARING STRENGTH, STANDARD, THWTNG-EL 4END0RF( SCALE TO 1 00 )

L5 6 2 0 59. 4 53.7 -6.

1

.6 .73 15T TEARING STRENGTH, STANDARD. THW I NG-EL MEND0RF( SCALF Tr 3 00 ) L3 4 5 o 59.7 53.6 -5.9 .2 1 . 44 15T TEARING STRENGTH, STANDARD , THW I NG- FL MENDORP< SCALF T0 : oo ) 1.1 1 5 0 59.8 55. 6 -4.6 1.7 . 8 7 15C TEARING STRENGTH, STANDARD. THWI NG-FL 4END0RF (W. AT ^ Cl AMP > L21 2 0 59.9 54. 7 -5.0 .9 .99 15T TEARING STRENGTH, STANDARD. THWING-ELMEND0RF( SCALF TO 3 00)

L34 4 0 60.1 53.6 -5.6 -.0 1.19 15C TEARING STRENGTH. STANDARD, THWI NO- FL 4END0 RF (W. A T F CLAMP

)

L224 0 60.5 52.5 -6.0 -1 . 1 .76 1 5 T TEARING STRENGTH. STAND ARD, THW I NG- ELMENDORF! SCALE TO 1 00 ) L31 5 0 61 .

3

54.1 -4.4 -.3 1 .28 15T TEARING STRENCTH, STANDARD, THWING-EL (END0RK SCALF TO 1 00 ) L230 61 .

4

54.1 -4.3 -.4 1.06 15V TEARING STRENGTH, STANDARD , TPW I NG— FL MEN DOR F( SCALE TO 100 >x? Liei 0 61 .

5

55.3 -3.4 .4 1.13 15T TEARING STRENGTH, STANDARD, THWING-EL MFND0RF! SC AIT TO 1 oo ) L587 0 61 .

6

58.1 -1 .5 2.5 .91 1ST TEARING STRENGTH, STANDARD, THWING-EL 4FND0RF! SCALE TO 1 00 >

11 82A 0 61.7 51.7 -5.6 -2.4 1 .00 1 5 A TEARING STRENGTH. STANDARD, APPITA

L390 0 61.8 55.6 -3.0 . 4 1.23 15T TEARING STRENGTH, STANDARD, THWTNG-EL'€FNDORF( SCALF 3 00 ) LI 4 8 0 61.9 56.

8

-2.2 1 .3 1 . 38 1 5T TEARING STRENGTH, STANDARD, THW I NG- EL MEN D0RF( SCALF TO 3 OO ) L334 0 61.9 54.9 -3.4 -.2 .91 1 5T TEARING STRFNGTH, STANDARD, THWING-ELMENDORF( SCALF T0 100 ) L285 0 62. 1 55. 1 -3.1 -.1 1 .78 15T TEARING STRENGTH. STANDARD, THWING-EL MENDORF! SCALF TO 3 00 ) L232 0 62.

1

55.1 -3.1 -.2 1.00 15T TEARING STRENGTH, STANDARD, THWI NG-FL MEN D0RFC SCALE T 0 100 ) L291 0 62.3 54. 7 -3.2 - . 5 .76 1 5 A TEARING STRENGTH, STANDARD, APPITA

LI 99C 0 62.

3

54.3 -3.5 -.9 . 7 0 1 5T TEARING STRENGTH, STANDARD, THWING-EL MEND0RF( SC ALF TO 1 00 ) LI 03 0 62.3 57.9 -1 . 1 1 .9 • 7 3 15T TEARING STRENGTH, STAND ARD, THWING-FL 4END0RF! SCALF T O 1 00 ) L606 0 62.

4

56.3 -2.1 .6 1 .09 15T TEARING STRENGTH, STAND A RD, TRWING-FLMEND0RF( SCALE TO 100 ) L596 0 62.4 52.8 -4 .

4

-2.1 1 • 04 1 5T TFARING STRENGTH, STANDARD, THWING-FL CENDORF( SCAL* TO 100 ) 11 90R 0 62.4 55.9 -2.3 . 3 .73 1 5C TEARING STRENGTH, STANDARD, THWI NG-FLMENDORF <W. AIR CLAMP ) 1362 0 62.6 56.6 -1 .

8

.7 .80 15T TEARING STRFNGTH, STANDARD, THWI NG-FL MEND0RF< SCALE TO 3 00)

L2 6 2 0 62.6 56. 7 -1 .

7

. 7 .52 15T TEARING STRENGTH. STANDARD. THWTNG-EL4FND0RF( SCALE TO 100 ) L?1 2 0 62.7 58.7 - . 4 2.2 1 . 00 15T TEARING STRENGTH, STANDARD. THW I NG-FL MEND0RF( SCAl F TO 1 00 )

LI 6 2 0 62.7 55.9 -2.1 . 1 .74 1 5T TEARING STRENGTH, STANDARD, THW I NG-FL MEN DOR FC SCALF TO 1 0 n ) L21 7 0 62 .

8

55.0 -2.7 -.7 •

*T 4 1ST TEARING STRENGTH. STANDARD, THW INC -EL 4FN D0 RF( SCALE TO 1 OO ) LI 57 0 62.9 55.4 -2.3 - .4 • 83 15T TFARING STRENGTH, STANDART, THWING-EL I^NDORFC SCALF TO 100)

L5 8 0 0 62.9 55.9 -1 .9 -.0 .73 15T TEARING STRFNGTH, STANDARD, THWING-FLMF.ND0RF( SCAl T TH 1 00 ) LI 00 0 63.0 52.7 -4 .

0

-2.6 .76 1 5 M TEARING STRENGTH, STANDARD. T. M. MI RFI FL D< APP IT A- r.LMFN*'0 RF ) L226C 0 63. 1 56.0 -1 .8 - . 1 1 ,37 1 5T TEARI NG STRENGTH, STAND ARD, THW I NG - EL MFND0RFC SCALE TO 3 00 ) LI 1 8 0 63. 1 54.7 -2.6 -1.1 .72 1ST TEARING STRFNGTH, STANDARD. THWING-EL fENDORF! SCAl*7 TO 2 00 ) L279 0 6 3.2 53.9 -3. 1 -1.8 1 .97 15T TEARING STRENGTH , STAND ARD, THW TNG- EL MEN D0RF( SCALF TO 3 00 ) L26

1

0 63. 2 56.

0

-1 .

7

- • 2 1 .02 1 5T TEARING STRENGTH, STANDARD, THWING-FLMFNDORF( SCALE TO 1 00 ) LI 4 1 0 63. 3 55. 7 -1 .

2

. 3 .99 1 5T TEARING STRFNGTH, STANDARD, THW INC- ELMENDORF! SCALF TO 1 00 )

LI 2 2 0 63. 5 57.0 - . o .4 .78 15C TEARING STRENGTH, STANDARD. TH WT NG- ELMENDORF (W. A TR CLAMP

)

L251 63. 5 56.0 -1 . 4 — . 4 . 71 1 5 K TFARING STRFNGTH, STANDARD, L0RC NT7 -WETTRFS , 20 C, 65% RH

LI 66 0 63. 5 56.6 -1 .

0

. 1 . 86 1ST TEARING STRE NGTF

,

STAND A RD, TH WI NG-EL MEN DOR F( SCALF TO 100)'

L21 1 0 63. 7 57.7 -.2 • 8 1.17 1 5 R TEARING STRENGTH, STAND ARD, THWING-FL MEN DOR F, DIGITAL REA I>0UT LI 24 0 63.7 56.3 -1.1 -.3 •

"T 4 1ST TEARING STRENGTH, STANDARD, THWING-El MEND0RFI SCALT TO 100) L309 0 63.9 58.1 . 2 1 . 1 1 . 59 1 5T TFARING ST RF NOTH. STANDARD, THWING-EL MENDORF! SCALF TO 100 ) L281 0 64. 0 59.9 1 .5 2.3 1 . 09 1 5T TEARING STRENGTH, STANDARD, THWTNG-EL MEND0RF! SCALF TO 100 ) LI 2 8 0 64. 1 58.6 . 7 1.2 .60 1 5T TEARING STRENGTH. STANDARD, TP W I NG- ELMEND0 RF! SCALF TO 100 ) LI 83 0 64.

2

57. 5 . 0 . 3 1 .01 1ST TEARING STRFNGTH. STANDARD. THW I NG- EL MFND0RF! SCAL! TO 100 ) LI 73B 0 64. 2 60.9 2. 3 3. 0 .68 1ST TEARING STRENGTH, STANDARD. THWING-EL 4FND0RF( SCALF TO 100)

L6 0 0 0 64.3 57.6 . 2 • 4 .81 15T TFARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) L305 0 64. 3 61 .

0

2.3 3. 0 .65 15T TEARING STRFNGTH, STANDARD, THWI NG- EL MFN DOR F< SCALF TO 1 oo ) LI 58 0 64.4 58.7 m c 1 . 1 1 . 46 1 5 R TEARING STRENGTH, STAKI> ARD, THW I NO-EL MENnARF, DIGITAL READOUT

L30

1

64. 5 56. 7 -.2 -.5 1 • 00 1 5 X TFARING STRENGTH, STANDARD: GIVE INSTRUMENT MAKF , MODFL

L61 0 64.7 57.7 . 6 . 2 1 . 35 15E TEARING STRFNGTH, STANDARD, THWI NG- EL «ENDf>RF , AMB I ENT CrtSD. L376 0 64.7 60.2 2.1 2.1 . 78 1 5 T TFARING STRENGTH, STANDARD, TH W T NG- EL MEN D0RF( SCALE TO 100 ) L255 0 64.7 55.9 -.6 -1 .2 1 .00 1ST TEARING STRENGTH, STANDARD, THW I NG-EL MEN D0RF< SCALE TO 1 00 » LI 94 0 64.

8

57.9 . 8 .3 .62 1ST TEARING STRENGTH, STAND ARD, THWI NG-EL MENDORFC SCALE TO IOC 1 L226B 0 64.8 56.0 - • 5 -1.2 .98 1 5 T TEARING STRENGTH, STANDARD, THWING-EL MENDORF! SCAl

E

TO 100 ) L39 2 0 64.9 56.0 - • 4 -1 .3 2.09 1 5 T TEARING STRENGTH, STANDARD, THWING-EL MEND0RF( SCALF TO 100 )

16
RE PORT N0. SIS TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 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

C0DE F H21 E10 MAJ0R MINOR R. SDR VAR PR0PERTY---TEST INSTRUMENT---C0NDI TI0NS

L565 0 65. 0 56.8 • 2 -.7 .85 1 5T TEARING STRENGTH. STANDARD , THW I NG-EL MEND0RF( SCALE T0 1 00 > L396M 0 65.0 58.3 1.2 .5 .77 1 5 T TEARING STRENGTH, STANDARD, THWI NG-EL *FND0RF< SCALE TO 100 ) L336 0 65. 0 56.9 .2 -.6 .67 15T TEARING STRENGTH, STANDARD, THWING-EL *CEND0RF( SCALE T0 100 ) LI 2 1 0 65. 1 59.6 2.1 1 .4 1.05 15T TEARING STRENGTH, STANDARD, THWING-EL 4END0RFC SCALE TO ! 00 > L264 X 65. 1 48.0 -5.4 -7.5 3.04 1 5 T TEARING STRENGTH, STANDARD, THWING-EL <FND0RF( SCALE T0 1 00 )

LI 53 0 65. 1 57.9 1 .

0

. 1 . 89 15C TEARING STRENGTH, STANDARD, THWI NG-FL 4END0RF (W. AIR CLAMP

)

L32 8 * 65. 2 52.6 -2.3 -4.0 1.03 15T TEARING STRENGTH, STANDARD , THW I NG-EL MEND 0RF( SCALE T0 1 00 ) L257C 0 65.3 57.7 1 • 1 -.2 .93 15C TEARING STRENGTH, STANDARD, THWI NG-ELMEND0RF ( W. AIR CLAMP

)

L31 1 0 65. 4 56. 5 . 3 -1.2 1 . 40 1 5T TEARING STRENGTH, STANDARD , THWI NG-EL MEND0RFC SCALE Te 100 ) L254 0 65. 5 58.5 1.7 .3 .96 1 5T TEARING STRENGTH, STANDARD, THWI NG- ELMEND0 RFC SCALE T0 100 > L182T 0 65. 6 57.4 1 .1 -.6 1.13 1 5 T TEARING STRE NGTH, STANDARD, THWING-EL 4FND0RFC SCALE T0 100 ) L37 9 0 65. 6 57.7 1 • 3 -.4 .70 15T TEARING STRENGTH, STANDARD, THWING-EL 4END0RFC SCALE T 0 1 00 ) L22 3 0 65.7 56.2 .3 -1.6 .93 1 5 R TEARING STRENGTH, STANDARD, THWING-EL 4END0RF, DIGITAL READ0UT

L243 0 65. 7 56.3 .5 -1 .5 1.17 15T TEARING STRENGTH, STANDARD, THWI NG-EL vfEND0RF( SCALE T0 1 00 ) L257A 0 65.7 59.3 2.4 .8 1.31 15C TEARING STRENGTH, STANDARD, THWI NG-EL 4END0RF <W. AIR CLAMP*

L27 3 X 65. 7 65.1 6.1 5.2 .72 15T TEARING STRENGTH, STANDARD, THW I NG-EL vfEND0RF( SCALE TO 100 ) L237B 0 66. 0 58.5 2. 1 -.0 .71 15T TEARING STRENGTH, STANDARD, THWING-EL MEN D0 RFC SCALE T0 1 00 > L567 0 66. 0 59.1 2.4 .4 1.07 15C TEARING STRENGTH, STANDARD, THWI NG-ELMEND0RF (W. AIR CLAMP * L575 66. 1 55.1 .0 -2.7 .89 15V TEARING STRENGTH, STANDARD, THWING-ELMEND0RFC SCALE T0 100 )X?

LI 89 0 66.3 55.1 • 1 -2.9 .84 1 5 T TEARING STRENGTH, STANDARD, THWING-ELMFND0RFC SCALF T0 1 00 >

LI 76 0 66. 4 57.7 1 .9 -.9 1.13 15T TEARING STRENGTH, STANDARD, THWING-EL MEND0RFC SCALE T0 1 00 ) L56

1

* 66.5 65.0 6.7 4.6 1.43 15T TEARING STRENGTH, STANDARD, THWT NG-EL IEND0RFC SCALE T 0 100)

L21 3 0 66.5 58.9 2.8 -.1 .63 15T TEARING STRENGTH, STANDARD, THWING-EL MEN D0RFC SCALE T0 100 > L352 0 66.5 58.9 2.7 -.1 .88 15C TEARING STRENGTH, STANDARD, THWI NG-EL *C END0RF (W. AIR CLAMP * LI 85 0 66.7 56.1 1 .1 -2.3 1.15 15T TEARING STRENGTH, STANDARD, THWING-EL MEND0RFC SCALE TO 100 *

LI 39 0 66.8 58.5 2.7 -.6 .85 15T TEARING STRENGTH, STANDARD, THWING-EL 4END0RFC SCALE T0 100 ) LI 26 0 66.9 58.5 2.7 -.6 .68 15T TEARING STRFNGTH, STANDARD, THWI NG-EL vCEND0RF( SCALE T0 100 > L257B 0 66.9 57.9 2.4 -1.1 1.07 15C TEARING STRENGTH, STANDARD, THWI NG-EL MEND0RF ( W. AIR CLAMP * LI 70 0 67.0 59. 1 3.2 -.2 .18 15T TEARING STRENGTH, STANDARD, THW I NG- EL MEND0RFC SCALE TO 100 * L36 0 0 67.2 60.7 4.4 .9 .69 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RFC SCALF TO 100 * L237A 0 67.2 61 .

1

4.6 1 .2 .90 15T TEARING STRENGTH, STANDARD, THWING-EL MEN D0 RFC SCALE TO 100)

L 299 0 67.3 60.9 4.6 1 .0 1.18 1 5 T TEARING STRENGTH, STANDARD, THWING-EL MEND0RFC SCALE T0 100 ) L206 0 67. 3 61.5 5.0 1 .4 .96 1 5R TEARING STRENGTH, STANDARD, THWING-ELMEND0RF, DIGITAL READ6UT

LI 67 0 67.3 60.9 4.6 .9 1 .05 15C TEARING STRENGTH, STANDARD, THWI NG-EL 4HND0RF (W. AIR CLAMP

)

L382 0 67. 3 60.1 4.1 .4 .76 15T TEARING STRENGTH, STANDARD, TH W I NG-EL MEND0RFC SCALE TO 100) L248 0 67.7 56.4 2.0 -2.7 .71 1 5 J TEARING STRENGTH, STANDARD, L0 RENT Z-WETT RES L249 0 67.7 60.6 4.7 .5 .79 1 5T TEARING STRFNGTH, STANDARD, TH WT NG-EL MEND0RFC SCALF TO 1 00 ) LI C7 0 67.7 58.

1

3.2 -1 .4 2.69 1 5 T TEARING STRENGTH, STANDARD, THWING-ELMEND0RFC SCALE TO 100 ) LI 95 0 67. 7 55.3 1.4 -3.6 .81 15C TEARING STRENGTH, STANDARD, THWI NG-EL IEND0RF (W. MR CLAMP

)

L24 4 0 67. 8 57.1 2.5 -2.3 1 . 27 15C TEARING STRENGTH, STANDARD, THW I NG -EL MEND0RF (W, AIR CLAMP

)

L58 1 0 68. 1 60.1 4.8 -.2 .85 15Q TEARING STRENGTH, STANDARD, THWING-EL IEND0RF, AIR CLAMP , DIGITL

L566 0 68. 1 61 .

7

5.8 1 . 1 1.80 15T TEARING STRENGTH, STANDARD, THWI NG-ELMEND0RFC SCALF TO J 00 ) L280 0 68.4 55.6 2.0 -3.8 .56 15L TEARING STRENGTH, STANDARD, L0RENTZ-WETTRES

L275 0 68. 5 58. 1 3.7 -2.0 1.02 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RFC SCALF TO 1 00 ) L484 0 69.

0

60.5 5.7 - .4 1.13 15T TEARING STRENGTH. STANDARD, THW I NG-EL MEND0 RFC SCALE TO 100 ) L233 0 69. 1 63.2 7.5 1.5 .91 15T TEARING STRENGTH, STANDARD, THWI NG-EL MEND0RPC SCALE TO 100 ) LI 5 9 0 69.2 58.6 4.6 -2.1 1.17 1 5 L TEARING STRENGTH, STANDARD, L0RENTZ-WETTRFS

L57 6 0 69. 4 58.7 4.

8

-2.0 1 .00 15T TEARING STRENGTH, STANDARD, THWING-EL MEND0RFC SCALE T0 1 00 ) L599 0 69.5 60.9 6.3 -.4 1.30 15T TEARING STRFNGTH, STANDARD, THWI NG-EL MEND0RFC SCALE TO 100 ) L24

1

X 69.7 69.6 12.1 6.

1

1.13 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 1 00 ) L27 8 0 69. 9 61 .7 7.1 -.1 1 . 57 15T TEARING STRENGTH, STANDARD, THWI NG-EL MFND0RFC SCALE TO 100 ) L259 0 70. 1 64.1 8.8 1 .7 .84 15T TEARING STRENGTH, STANDARD, THWING-EL MEN D0 RFC SCALF TO 100) L207 * 70.3 44.8 -3.5 -13.3 1.26 1 5R TEARING STRFNGTH, STANDARD, THWING-EL IFND0RF, DIGITAL RE AD0UT

L288 0 70. 6 63.1 8.6 .5 • 88 15Q TEARING STRENGTH, STANDARD, THWING-EL IEND0RF, AIR CLAMP .DIGITL

L442 * 72.2 66.7 12.1 2.3 1.08 15R TEARING STRFNGTH, STANDARD, THWING-EL MEND0RF, DIGITAL READ0VT

LI 34 0 72.3 63.3 9.9 -.4 1 .02 1ST TEARING STRENGTH, STANDARD, THWING-EL MFND0RFC SCALE TO 100 ) L242 72.5 66.4 12.1 1.8 1 .06 1 5 U TEARING STRENGTH, STANDARD, AUSTRALIAN 0PT • C0

.

L554 0 72.5 64.4 10.9 .3 .74 15C TEARING STRENGTH, STANDARD, THWT NG-ELMEND0RF (W. AIR CLAMP

)

LI 91 * 74.9 52.6 5.1 -10.3 1.22 1 5T TEARING STRENGTH, STANDARD, THWI NG-EL MEND0RFC SCALE TO 1 00 ) L225 * 75. 6 63.1 12.4 -2.7 .61 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 )

LI 5 1 X 78. 1 68.5 17.8 -.2 1.05 15C TEARING STRENGTH, STANDARD, THWI NG-ELMEND0RF (W. AIR CLAMP

)

GMFANS : 64. 4 57.2 1 .00 95% ELLIPSE: 12.2 3.9 WITH GAMMA - 40 1DEGREES

17
(1ILLINENT0N

420

440

460

480

500

520

540

560

580

600

620

640

660

680

700

TERR I NG STRENGTH, DEEP CUTOUT

SAMPLE H21 = 64. GRAMS SAMPLE E10 = 57. GRAMS

SAMPLE H21 = 631 M I LL I NEWTON SAMPLE E10 = 561 MILLINEWTON

500 520 540 560 580 600 620 640 660 680 700 720 740 760

MILLINEWT0N

IS
REPORT NO. 51 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 19^8 ANALYSIS T17-1 TABLE 1 TEARING STRENGTH. GRAMS

TAPPI STANDARD T4 1 4 TS-65. THW ING- ELMEN DO RF WITHOUT D3EP CUTOUT IS STANDARD FOR THIS ANALYSIS

SAMPLE BROWN KRAFT

LAB E32 74 GRAMS! PER SQUARE METER

C6DE MEAN DEV N. DEV SDR R. SDR

LI 2 2 84. 5 -1 .6 -.43 2.2 .90

LI 4

8

85. 9 -.2 -.05 2.4 .99 L174N 78.4 -7.7 -2.04 2.9 1.19

L231 86.3 • 3 . 07 1.9 . 78 1234 89.5 3.4 .90 2. 1 . 84

L267 93. 7 7.7 2 . 04 4.3 1 . 73 L269 88.

8

2.7 .73 2.5 c 99

L301 82.

8

-3.3 -.87 2. 8 1.13 L308 87. 3 1.2 . 32 1.7 . 69 L324 86.9 .9 .23 2.9 1.18

L326 80.7 -5.4 -1 .43 1 .9 . 76 L339 73.8 -12.2 -3.26 2.0 .81 1341 86. 0 -.1 -.02 2.3 .92 L366 87. 7 1 .7 .44 2.7 1.10 L372 86.5 .4 • 1 1 2.0 .79

GR. MEAN GRAMS GRAND MEAN

SD MEANS - 3.8 GRAMS SD 0F MEANS AVERAGE SDR • 2.5 GRAMS

GR. MEAN - 844.0 MILLINEWT0N GRAND MEAN L604 64.

4

-21 .7 -5.76 3.5 1.57 TOTAL NUMBFR OF LABORATORIES REPORTING • 16

Best Values: E32 85+7 grams

E63 78+6 grams

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

SAMPLE KRAFT ENVEL0PE TEST D. • 1 5 E63 75 GRAMS PER :SQUARF METER

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

77.3 -1 .

0

-.28 2.1 .95 1 7N 0 LI 2? 78.1 -. 2 -.05 4.0 1 .77 17N ft MAS

71.2 -7. 1 -2.1 0 2. 2 1 . 00 1 7 N 0 LI '’AN 82.2 3.9 1.16 2.4 1 .07 17N ft L231 79.6 1 .3 .39 2.3 1.03 17N ft L2 3A

84.0 5. 7 1 .70 2.1 .96 1 7N ft T 267

80.0 1.7 .51 2. 1 .96 17V 0 L269 76.2 -2.1 -.62 1.7 .76 17N 0 L301 79.9 1 • 6 .49 2.6 1.18 1 7N ft L208

80.4 2. 1 .63 2.2 .97 1 7N ft L32 A 72.7 -5. 6 -1.65 1.7 .77 1~N ft L 326 64.9 -1 3. 4 -3.96 2.0 . 89 1 7N ft L3 39 78. 1 -. 2 -.07 2. 0 .90 17V ft L3A1 77.3 -1 .

0

-.28 2. 8 1 .25 17N ft L366

78.9 .6 . 1 7 1.0 .43 1 7N ft L2 72 78.3 GRAMS TEST DETERMINATIONS - l c 3.4 GRAMS 14 LABS IN GRAND MEANS

AVE RAGE SDR * 2 • ? GRAMS

767.7 MILLINEWTON

67.9 -10.4 -3. 09 1.9 . 86 1 T 6 04

Please see the diagram on the inside of the back

cover of this report which shows how to distinguish

between an Elmendorf tear tester with DEEP CUTOUT

and an older model tester with NO CUTOUT.

Data from the following laboratories were given X codes and omitted from the grand means because the tests were made on DEEP CUTOUT tear testers: 604.

REPORT NO. 51 S TAPPI COLLABORATIVE REFERENCE PR0GRAM JANUARY 1978 ANALYSIS T17-1 TABLE 2 TEARING STRFNGTH, GRAMS

TAPPI STANDARD T41A TS-65, THW I NG- EL MEN DO RF WTTH0UT DEEP CUT0UT IS STANDARD F0R THIS ANALYSIS

LAB CODE F MEANS

E32 E63 COORDINATESMAJOR MINOR

AVG

R. SDR VAR PROPERTY— -TEST INSTRUMENT- --CONDI TIONS

L604 64.4 67.9 -23.1 6.5 1.21 17X TEARING STRENGTH, Nft CUT OUT : GIVE INSTRUMENT MAKE L339 tt 73. 8 64.9 -18.0 -1 .9 .85 17N TEARING STRENGTH, NO CUT OUT. THWI NG-ELMENDORF

LI 74N ft 78.

4

71 .

2

-10.4 -.2 1.10 17N TEARING STRFNGTH, NO CUT OUT, THWING-ELMENDORF

L326 ft 80. 7 72.7 -7 .

7

-.6 . 76 1 7N TEARING STRFNGTH, NO CUT OUT , THWI NG-EL MENDORF

L301 ft 82. 8 76.2 -3.8 .6 .94 1 7 N TEARING STRENGTH, NO CUT OUT , THWI NG-ELMENDORP

LI 22 ft 84.5 77.3 -1 .

8

. 3 .93 1 7N TEARING STRENGTH, NO CUT OUT, THWI NG -ELMENDORF

LI 4 8 ft 85.9 78.1 -. 3 • 0 1 . 38 17N TEARING STRENGTH, NO CUT OUT. THW INC- ELMENDORF

L 34

1

ft 86. 0 78. 1 -.2 - . 1 .91 17N TEARING STRENGTH, NO CUT OUT. THWI NG-ELMENDORF

L2 31 ft 86.3 82.2 2.6 2. 8 .92 17N TEARING STRENGTH, NO CUT OUT, THWI NG- FLMPNDft RF L372 0 86.5 78.9 . 7 . 2 .61 17N TEARING STRENGTH, N'l CUT OUT, THWI NG-EL MENDORF

L324 0 86.9 80.4 2.0 1 .0 1.08 17N TEARING STRENGTH, NO CUT OUT , THWING-ELMENDORF

L30 8 0 87. 3 79.9 2.0 .4 .94 17N TEARING STRFNGTH, NO CUT OUT , THWI NG-ELMENDORF

L366 0 87. 7 77.3 • 6 -1 .8 1.18 17N TEARING STRENGTH, NO CUT OUT. THWI NG- ELMENDORF

L269 ft 88. 8 80.0 3.2 -.5 .98 1 7 N tearing STRENGTH, NO CUT OUT, THWING-ELMENDORF

L234 0 89.5 79.6 3.4 -1.3 .93 1 7 N TEARING STRENGTH, NO CUT OUT, THWING-ELMENDORF

L267 0 93. 7 84.0 9.5 -.8 1.34 1 7 N TEARING STRENGTH. NO CUT OUT, THWI NG-EL MENDORF

GMF ANS

86.1 95% : 78.3

ELLIPSE: 14.3 3.2

1 .00 WITH GAMMA - 41 ;DEGREES

19
MILLINE

WT0.N

640

660

680

700

720

740

760

780

800

820

840

860

880

900

TERRING STRENGTH, N0 CUT0UT

SAMPLE E32 = 86.

SAMPLE E32 = 844

GRAMS

M I LL I NEWTON

SAMPLE E63 = 78.

SAMPLE E63 = 768

GRAMS

M I LL I NEWTON

CO

<N

OO

CE qo Qd r- CO

m + . X . # NOT IN GRAND MEANS

CO

LJ ANALYSIS T 1 7- 1 LU

Q_

CE

CO

7D i

O

O

O ©

O

O

O

o O

©

©

©

SRMPLE E32

72 74 76 78 80 82 84 86 88 90 92 94 96 98 100

GRRMS

I 1 1 1 1 1 1 1 1 1 1 1 1 1 720 740 760 780 800 820 840 860 880 900 920 940 960 980

MILLINEWT0N

20
REPORT N0. SIS TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T19-1 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 KRAFT SAMPLE KRAFT ENVELOPE TEST D. 20 LAB H57 147 GRAMS PER SQUARE METER E63 75 GRAMS PER SQUARE METER

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

LI 07 10.10 -.30 -.79 .60 • 92 3.90 -.02 -.10 . 1 3 .71 1 9 A fl LI 07

LI 2

2

10.38 -.02 -.06 .59 .90 3.67 -.25 -1 .25 .19 1 •O'' 1 9 A fl LI 22

LI 26 10.44 • 04 • 12 .59 .90 3.80 -.12 -.58 . 15 . 86 1 9 A fl H 26

L 1 5 1 10.15 -.25 -.66 .62 .95 3.66 -.26 -1 .29 . 1 4 . 82 1 9 A fl LI 51 LI 5

3

10.74 .34 .90 .59 .91 3.95 .03 .15 .2? 1 .27 19P fl LI 53

LI 57A 10.50 • 1 0 .27 .55 . 84 4.03 • 1 1 .57 .19 1 . 09 19P fl L157A

LI 57 T 10.06 -.34 -.90 .79 1 . 20 3.85 -.07 -.35 .15 . 83 1 9 A fl LI 67

T

LI 6 7 10.97 . 57 1.53 .68 1 . 04 4.36 .44 2.22 .14 . 30 19G fl LI 6"

LI 7

4

10.33 -. 07 -.20 .69 1 . 05 3.64 -.28 -1 .41 .19 1 . 08 1 9 A fl LI 74

LI 821 10.09 -. 31 -.83 .61 .93 3.76 -.16 -.80 . 1 4 . 80 1 9 D fl l 1 821

LI 82L 9.92 -.48 -1 .28 .47 • 72 3.81 -.10 -.52 .19 1.10 19T fl LI 82

L

L207 10.01 -.39 -1.03 • 1 1 .16 3.76 -.16 -.78 .20 1.13 1 9 A fl L2C7

L217A 10.74 .34 .90 .52 .79 3.95 .03 .14 . 1 8 1 .02 19A fl L2 1 7 A L2 1 7 P 10.09 -. 31 -.81 .96 1.46 4.07 .16 .78 .21 1.19 1 9 P fl L21 7P L224 10.39 -.01 -.03 .79 1 • 21 4.18 .26 1 .30 • 2 1 .31 19 A fl 1.224

L22 5 10.49 .09 .23 .61 • 93 3.96 .04 .20 .22 1 .27 1 9P fl 12 2 5 L234L 10.43 . 03 • 07 .69 1 . 06 4 . 02 .1 0 .52 .16 .91 1 9 P fl L234 L L237A 10.54 .14 • 3 7 • 59 . 89 4.13 • 21 1 . 04 • 1

** . 96 1 9 Q fl L227A L237P 10.90 . 50 1 . 32 .67 1 • 02 4.11 .20 .99 .20 1.16 1 9 A fl L237P

L238A 10.36 -. 04 -.10 . 86 1 . 32 3.99 .08 .39 .23 1 . 33 19T fl L238A

L243 9.86 -.54 -1 .45 • 82 1 • 24 3.71 -.21 -1.07 • 12 .69 1 9 A fl L24? L257A 10.52 • 12 .32 .29 • 44 4.22 .30 1 .49 • 1 8 1 .02 1 9 P fl L25"A

L2 5 7 B 10.37 -.03 -.07 .67 1 • 02 4.05 .13 .66 .18 1 . 02 1 9P fl I.2F7R L257C 10.50 .10 .27 .74 1.12 4.05 .13 .67 .16 .93 1 9 P fl L267C

L264A 10.74 . 34 . 89 .67 1.03 3.28 -.64 -3.19 .24 1.36 1 9 A X L264A L264P 10.68 • 28 .75 .62 .95 4.02 . 1 0 .52 . 1 8 1 .00 1 9 P e L264P

L26 5 10.55 . 15 .40 .61 . 93 3.90 -.02 -.11 • 11 . 64 1 9 A 0 L265 L267 5.20 -5. 20 -1 3. 84 .32 . 49 3.72 -.20 -.99 .12 .•M 1 9 A 0 L26'* L273 11.11 .71 1.90 . 91 1.23 3.92 .00 .02 .30 1 .71 1 9 P a L 27? L280 9.34 -1 . 06 -2.82 .60 .91 3.67 -.25 -1 .25 .15 . 85 1 9G » T.2 80

L281 10.43 • 03 . 09 .63 • 96 3.86 -.05 -.26 . 1 8 1 . 03 1 9G ti L281 L305 1.87 -8.53 -22.72 .07 . 1 0 .74 -3.18 -15.92 .02 .11 1 9 P 0 L705

L31 2 10.51 • 1 1 .29 .71 1.09 3.96 .04 .20 . 1 3 . T 4 19P a L3S 2 L31 8 9.93 -.47 -1.25 .55 . 84 3.60 -.31 -1 .57 .14 .79 19G a L 3 1 8 L324 10.33 -.07 -.19 • 62 .95 3.56 -.36 -S .80 .20 1.13 1 9 A a L324

L33 4 10.41 .01 .03 .70 1 . 06 4.15 .24 1.18 .19 1 . 06 1 9 P a L3?4

L336 10.50 . 10 .27 .46 .70 3.71 -.20 -1 .02 .17 .95 19 G e L3?6

L3 5 6 11.05 .65 1 . 72 .65 . 99 4.21 .29 1 .47 .20 1.12 19F a L356

L392 10.45 . 05 . 14 .46 • 70 4.11 .19 .94 .16 .92 1 9 A a L392

L561 11.13 .73 1 .94 .88 1. 34 4.14 .23 1.14 .16 .93 19P a L561

L562 11.94 1 .54 4.10 .75 1.15 4.25 . 34 1.69 .16 . 86 19P 0 L5 62 L56 5 10.09 -.31 -. 83 .31 . 47 4.32 .40 1.99 .17 . 96 19T » 1565 L568 10.25 -.15 -.39 .91 1.39 3.99 • 07 .37 .15 . 83 19P a L568

L575 10.64 .24 .64 .64 • 97 3.71 -.21 -1 .06 .16 . 89 1 9D e L575

L57 6 10.49 .09 .25 .63 .96 3.77 -.15 -.76 .16 . 89 1 9 A a 15 76 L580 10.58 .18 .49 .81 1.24 3.7" -.14 -.72 .18 1.02 19C a I 680

L581 11.14 .74 1 .96 .94 1 . 43 3.98 .07 .33 .2? 1 .25 1 9A e L581

L5 82 10.09 -.31 -.81 .57 . 87 3.60 -.32 -1 .58 .19 1 . 09 1 9A a I 582

L6 04 9.76 64 -1

.

70 1 .05 1 . 60 3.92 -.00 -.00 .15 . 85 1 9 P a L604

L606 10.56 • 16 • 43 .57 . 87 3.92 .00 . 02 .16 .91 19P a L6 06 L610 9.88 -.5? -1 .37 .58 . 89 3.71 -.21 -1.03 .16 . 39 1 9 A a L61 0

OR. MEAN 10.40 KIL0NEWT8N/M GRAND MEAN 3.92 KUONEWTflN/M TTSr DETERMINATIONS • 20

SD MEANS .38 KILONEWTON/M SD OF MEANS .20 K I L fl NE WTON /M 47 LABS IN GRAND ME AN 8 AVERAGE SDR * .66 KIL"NFWTON/M AVERAGE SDR • .18 KTLflNFWTflV/M GR. MEAN 59.40 LB/INCH GRAND MEAN 22.37 LB/INCH

L251 9.90 -.50 -I .33 .63 . 96 3.69 -.23 -I .15 .15 • 84 151 Lset TOTAL NUMBER OF LABORATORIES REPORTING * 52

Best Values: H57 10.3 + 1.1 kilonewton per meter

E63 3.8 + 0.4 kilonewton per meter

The following laboratories were omitted from the grand means because of extreme test results: 267,

562.

Data from the following laboratories appear to have

been reported in incorrect units: 305. 21
REPORT NO. E1S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1^8

ANALYSIS T19-1 TABLE 2 TENSILE BREAKING STRENGTH, KILONEWTONS PER METER - PACKAGING PAPER

TAPPI STANDARDS T404 0S-76 AND T494 OS- 70, TENSILE BREAKING STRENGTH , PENDULUM AND CRE TYPFS

LAB MEANS COORDINATES AVG C0DE F H57 E63 MAjeR MINOR R. SDR YA R PROPERTY-- -TEST INSTRUMENT ---CONDITIONS

L305 tt 1.87 . 74 -9. 10 • 45 • 11 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L2 67 * 5.20 3.72 -5. 02 1 . 38 . 60 19A TENSILE STRENGTH. PACKAGING PAPFR, LOAD CELL ( CPF > L280 * 9.34 3.67 -1. 09 • 08 .88 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE > L604 0 9.-*6 3.92 “ • 61 • 19 1 .23 1 9 P TENSILE STRENGTH, PACKAGING PAPFR, PENDULUM TESTER

L24 3 0 9.86 3.71 • • 58 * * 04 • 97 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL < CRE )

L61 0 0 9.88 3.71 55 . 04 .89 1 9 A tensile STRENGTH, PACKAGING PAPER, LOAD CELL ( CRF ) L2 51 9.90 3.69 55 - . 07 .90 191 TENSILE STRENGTH. PACKAGING PAPER, CRE, 2 OC, 65* RH

LI 02L 0 9.92 3.81 49 . 05 .91 19T TENSILE STRENGTH, PACKAGING PAPFR. PENDULUM TESTER

L31 8 0 9.93 3.60 54 - . 16 .81 19G TENSILE STRENGTH. PACKAGING PAPFR, LOAD CELL ( CRF ) L207 0 10.01 3. 76 -• 42 * * 03 .65 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CPF )

LI 571 0 10.06 3.85 34 . 04 1 .02 1 9 A tensile STRENGTH, PACKAGING PAPER, LOAD CELL ( CRF ) LI 821 0 10.09 3.76 35 - . 06 . 86 19D TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRF ) L565 * 10.09 4.32 18 . 47 .72 19T TBNSILE STRENGTH, PACKAGING PAPFR, PENDULUM TESTER

L582 0 1 0.09 3.60 39 - . 21 .96 1 9 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRF ) L21 7P 0 10.09 4.07 -• 24 * 24 1 .33 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

LI 07 0 10.10 3.90 29 07 .81 1 9 A TENSILE STRENGTH, PACK AG ING PAPER, LOAD CELL ( CRF > LI 51 0 10.15 3. 66 32 - . 17 .88 1 9 A TENSILE STRFNGTH, PACKAGING PAPFR, LOAD CELL ( CRE ) L56 0 0 1 0.25 3.99 12 . 12 1 .11 1 9 P TENSILE STRENGTH, PACKAGING PAPFR, PENDULUM TESTE R

LI 74 0 10.33 3.64 16 - . 25 1 .07 1 9 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CEIL ( CRF ) L324 0 1 0.33 3.56 -• 18 * * 32 1 .04 1 9 A TENSILE STRFNGTH, PACKAGING PAPER, LOAD CELL ( CRF ) L238A 0 ! 0.36 3.99 01 # 08 1 .32 19T tensile STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L2 57B 0 1 0.37 4.05 . 01 . 13 1 • 02 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

LI 22 0 10.38 3.67 10 - . 23 .99 1 9 A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL C CRF ) L224 0 1 0.39 4.18 . 07 . 25 1 .26 1 9 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CPLL ( CPE > L33 4 0 1 0.41 4.15 * 08 • 22 1 .06 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L2 3 4L 0 10.43 4.02 06 09 .98 1 9 P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L2 81 0 1 0.4 3 3.86 . 01 - . 06 1 .00 1 9G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRF > LI 2 6 0 1 0.44 3.80 . 01 - . 12 . 88 1 9 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL C CPF ) L392 0 10.45 4.11 . 11 . 16 .81 1 9 A TENSILE STRENGTH, PACKAGING PAPFR, LOAD CELL C CRF ) L2 2 5 0 1 0.49 3.96 • 10 * 01 1 .10 1 9 P TPNS I LE STRENGTH, PACKAGING PAPER, PENDULUM TESTFR

L576 0 1 0.49 3.77 # 04 . * 17 .93 1 9 A TENSILE STRENGTH. PACKAGING PAPER, LOAD CELL i CRF > L257C 0 1 0.50 4.05 . 14 . 10 1 .03 1 9 P TENSILE STRFNGTH, PACKAGING PAPER, PFNDULUM TESTFP

LI 57

A

0 1 0.50 4. 03 • 13 . 00 .97 19P TENSILE STRENGTH, PACKAGING PAPFR, PENDULUM TESTFR

L33 6 0 1 0.50 3.71 . 04 - • 23 . 82 19G TENSILE STRENGTH. PACKAGING PAPFR, LOAD CELL < CRF > L312 0 1 0.51 3.96 * 12 * 01 .91 1 9 D TENSILF STRFNGTH. PACKAGING PAPFR, LOAD CELL ( CRE ) L257A 0 10.52 4.22 # 20 # 25 .73 1 9 P TENSILE STRFNGTH. PACKAGING PAPFR, PENDULUM TESTFR

L237A 0 1 O.f 4 4.13 • 20 • 16 .93 190 TFMSILE STRENGTH. PACKAGING PAPER. PFNDULUM TE STF

R

L2e 5 0 1 0.55 3.90 • 14 - • 07 .78 1 9 A TENSILE STRFNGTH, PACKAGING PAPER, LOAD CFLL ( CRT ) L606 0 1 0.56 3.92 • 16 - • 04 . 89 1 9 P TENSILE STRENGTH. PACKAGING PAPFR, PENDULUM TESTER

L58 0 0 1 0.58 3.77 * 1 3 * * 19 1 .13 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRF )

L5 75 0 10.64 3.71 16 - # 27 .93 1 9 D TENSILE STRENGTH, PACKAGING PAPFR, LOAD CELL < CRF ) L26 4P 0 10.68 4 . 02 • 30 • 01 .98 1 9 P TENSILE STRFNGTH, PACKAGING PAPER, PFNDULUM TESTFR

L264A X 1 0.74 3. 28 • 1 3 - • 71 1 .19 1 9 A TENSILE STRENGTH. PACKAGING PAPER, LOAD CELL < CRE > L21 7 A 0 10.74 3.95 • 33 - . 00 .90 1 9 A TENSTLE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRF. ) LI 53 0 1 0.74 3.95 * 33 * * 07 1 .09 1 9 P TENSILE STRENGTH. PACKAGING PAPFR, PENDULUM TESTFR

L237B 0 1 0.90 4.1 1 53 # 04 1 .09 1 9 A TENSILF STRENGTH, PACKAGING PAPFR, LOAD CFLL ( CRE ) LI 67 0 1 0.97 4. 36 • 68 . 25 .92 19G TENSILE STRFNGTH, PACKAGING PAPFR, LOAD CELL C CRF ) L35 6 0 1 1.05 4. 21 • 70 • 08 1 .05 1 9 P TENSILE STRFNGTH, PACKAGING PAPFR, PENDULUM TESTER

L2 73 0 11.11 3.92 • 68 - • 21 1 .47 1 9P TENSILE STRFNGTH, PACKAGING PAPER, PENDULUM TESTFR

L5 61 0 11.13 4.14 * 76 * * 00 1 • 1 4 19P TENSILE STRFNGTH, PACKAGING PAPER, PENDULUM TESTFR

L5 81 0 11.14 3.98 . 72 • . 16 1 .34 1 9 A TFNSILE STRENGTH, PACKAGING PAPFR, LOAD CELL C CRF ) L562 • 11.94 4.25 1. 57 * * 14 1 .00 19P TENSILF STRENGTH, PACKAGING PA PT R , PFNDULUM TESTER GMFANS

1 0.40 3.92 1 .00 95* ELLIPSE: 1. 00 • 43 WITH GAMMA - 17 DEGREES

22
KIL0NE

WT0N/M

TENSILE STRENGTH, PflCKRGING PRPERS

SAMPLE H57 = 10.40 K I L0NEWT0N/M SAMPLE E63 = 3.92 K I L0NEWT0N/M

SAMPLE H57 = 59.4 LB/INCH SAMPLE E63 = 22.4 LB/INCH

52 54 56 58 60 62 64 66

LB/INCH

23
REPORT NO. SIS TAPPI COLLABORATIVE REFERENCF PROGRAM JANUARY 19’8 ANALYSIS T20-1 TABLE 1 TENSILE BREAKING STRENGTH, KILONEWTONS PER METER

TAPPI STANDARD T49A OS-70, TENSILE BREAKING PROPERTIES OF PAPER t PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. 20 LAB JO 3 73 GRAMSi PER SQUARE METER J 07 85 GRAMS PER SQUARE METFR

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

LI 00 3.72 -.01 -.08 .25 1.41 6.21 • o -.35 .50 1 .61 20E fl 1.1 00

LI 1 5 3.88 .15 .84 .14 .78 6.40 • 1 1 .40 .18 .57 2 OD O 1115

LI 1 8 3.63 -. 1 0 -.57 .19 1.10 6.16 -.13 -.55 .29 .94 20 A fl LI 3 8

LI 2 2 3.68 -.05 -.29 • 22 1.27 6.11 -.18 -.77 .27 • 85 20 A fl LI ?2

LI 24C 3.62 -.11 -.63 .16 . 90 5.91 -.38 -1 .63 .27 . 86 20 A fl LI ?4C

LI 2

5

4.01 .28 1 .53 .17 .97 6.68 .40 1 .69 .49 1 .56 ?0C fl LI 25

LI 31 3.80 . 06 . 35 .20 1.14 6.12 -.16 -.70 • 38 1 .21 20F fl LI 3

1

LI 41 T 3.60 -.14 -.74 .17 . 98 6.11 -.18 -.77 .34 1 .09 20 A 0 LI 41 T

LI 4 3 4.37 • 64 3.48 .19 1 • 09 7.85 1 .56 6.66 .37 1.18 20E 0 LI 4?

LI 48 3.86 .12 .68 • 21 1 • 21 6.52 .23 .99 .42 1 .35 2 0 A fl LI 48

1159 3.55 -.18 -.98 .25 1.41 6.04 -.25 -1.07 .45 1 .44 20 A o 1.1 59

LI 63 3.78 .04 .25 • 12 .70 6.37 .09 .37 • 21 • 66 20D fl LI 63

Li 67 4.25 . 52 2.86 .20 1.11 6.73 .44 1 .88 .52 1 .66 20G •• L! 67

LI 76 3.15 -.58 -3.16 .39 2. 1 8 5.32 — . 9 7 -4.1 2 .57 1 .83 20E X L? 76

LI 85 3.33 -.40 -2. 19 • 21 1.20 5.81 -.47 -2.02 .42 1 .34 20C fl 11 85

LI 90R 3.59 -.14 -.77 • 21 1.21 6.23 -.06 -.26 .32 1 .03 20A fl LI 90P

LI 9 4 3.64 -.09 -.50 .13 .75 6.20 -.09 - • 37 .19 .62 20 A fl LI 9 4 L206 3.39 -.34 -1 .88 • 28 1. 59 6.24 - .05 -.20 .28 . 89 20 A * 1.206 1223B 3.81 .08 .45 • 12 .67 6.55 .26 1.10 .21 .67 20 A fl L223B

L226C 3.77 .04 .22 .22 1.24 6.39 • 10 .44 .72 2.30 20C 0 L226C

L2 3 0 3.66 -.07 -.41 .13 .75 6. 08 -.20 -.86 .23 • 7 5 200 0 I ? 30

L2 4 3 3.69 -.04 -.21 • 18 . 99 6.23 -.06 -.25 .15 • 47 20 A fL2 43

L2 5 5 3.75 .01 • 08 .23 1.29 6.47 .18 .76 .35 1.13 20 A fl L255

L2 6 0 3.58 -.15 -.80 .17 .97 6.99 .71 3.01 .18 .57 20 A X 1.260 L261 3.36 -.38 -2. 06 . 1 5 • 88 6.14 -.15 -.64 .28 .89 2 0 A fl L 2 M

L278 3.6? -.1 2 -.63 .15 . 87 6. 13 -.15 -.66 .29 .93 2 0 A fl L2 78 L291 3.92 .19 1 .02 .39 2. 19 7.35 1 . 06 4.53 . 35 1.12 ? 0 A X L291 L309 3.91 . i e 1 .00 • 22 1.23 6.42 .13 .55 .36 1.17 2 OF fl L3 09 L31 5 3.69 -.04 -.21 • 18 1 • 04 6.25 -.04 -.15 . 29 .92 20 A fl L31 5 L31 8 3.50 -. 23 -1.27 • 13 • 74 6.00 -.28 -1 .21 .28 . 89 20G fl I 31 8 L32 8 3.75 .02 • 11 .17 . 97 6.58 .29 1.24 .26 • 82 20 A fl 1328

L3 21 3.67 -. 06 -.34 • 22 1.26 6.24 -.05 -.19 .32 1 .03 2 CA H L~31 L33 3 3.74 .01 . 03 .15 . 86 6.25 -.04 -.16 • 16 .50 PC A o L 3 32 L344 4.10 . 37 2. 01 .20 1.15 6.61 .33 1 .39 • 32 1 • 02 20A fl L344 L352 3.05 -.68 -3.74 .16 . 90 NO DATA REPORTED FOR SAMPLE J07 2 0 A M I 35?

L36 0 3.75 .02 .12 • 21 1.19 6. 10 -.19 -.79 .43 1 .37 2 OB fl L~ 60 L372 3.78 . 05 • 26 • 13 • 74 6. 15 -. 1 4 -.59 .28 . 89 20 A fl ! 372 L378 3.58 -. 1 5 -. 81 • 13 .72 6.10 -. 19 -.82 • 22 .72 2 0 A fl L 3 70 L39 0 3.73 .00 • 01 .20 1.12 6 . 46 .17 • 7 2 .31 .99 2 0 A fl L390

L4 4 2 3.75 • 02 • 12 .15 . 83 6.23 -.05 -.22 .18 • 56 20G fl I 442 L557 6.06 2.33 12.76 .17 • 97 10.34 4.06 17. 29 .33 1 . 07 2 OC 0 L557

L559 3.94 • 21 1.17 • 1 8 1 . 00 6, 76 .47 2.01 .30 .97 ‘ 20C fl L559

L5 6 0 6.61 2.88 1 5.79 .17 . 98 10.47 4.1 8 17.82 1.12 3.60 2 OC 0 1560

L5 61 .19 -3.55 - 19.45 • 01 .08 • 26 -6.03 - 25.70 .03 . 09 20 A 0 L56* L563A 3.18 -.55 -3.04 .32 1 . 83 4.84 -1.45 -6. 18 • 79 2.54 2 OA 0 L563A

L56 7 3.78 . 05 • 26 • 14 . 70 6.42 • 1 3 .56 .36 1.14 ?0A e L567

L574 3.86 • 13 .69 .13 .76 6.62 .33 1 .41 .35 1.11 20 A o L5 7 4 L57 5 3.74 • 01 .03 .14 . 62 5.89 -.40 -1.68 .52 1 .67 20D • L5 7 5 L587 3.76 . 03 • 16 • 11 . 63 NO DATA REPORTED FOR SAMPLF J 0

7

20 A M L-P7 L592 3.87 . 14 .77 • 16 . 88 6.41 .13 .54 • 22 .70 20 A fl L592

GR • MEAN - 3.73 KIL0NEWT6N/M GRAND MEAN • 6.29 KILONFWTON/M TEST DETFRMI NATIONS • ?0

SD MEANS • . 1 8 KILONEWTON/M SD OF MEANS • .23 KTLONEWTON/M 39 LABS IN GRAND Ml ANS AVERAGE SDR - .16 KILONEWTON/M AVERAGE SDR • .31 KILO NEWTON/M

GR. MEAN f\J CO <* LB/15 MM GRAND MEAN • 21.206 LB/15 MM

LI 39 3.62 -. 1 2 -.63 .17 .<>5 6.12 -. I 7 -.71 • 33 1 • 04 2 OH 11 39 L23

1

3.63 -.1 0 -.55 .25 1.44 6.38 . 09 . 37 .21 .66 2 OH L231 L25

1

3.63 -.1 0 -.57 .21 1.17 5.82 -.46 -1.97 .29 .93 2.01 L2f 1 TOTAL NUMBER OF LABORATORIES REPORTING - S3

Best Values: J03 3.7 + 0.3 kilonewton per meter

J07 6.2 + 0.4 kilonewton per meter

The following laboratories were omitted from the grand means because of extreme test results: 143, 563A.

Data from the following laboratories were received too late for proper processing and inclusion in the grand

means: 141

.

Data from the following laboratories appear to have been

reported in incorrect units: 557, 560, 561.

24
REPORT NS. SIS TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T20-1 TABLE 2 TENSILE BREAKING STRENGTH, KILONEWTONS PER METFR

TAPPI STANDARD T»94 OS-70, TENSILE BREAKING PROPERTIES OF PAPER l PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS COORDINATES AVG

C0DE F J 03 J07 MAJOR MINOR R. SDR VAR PROPERTY—-TE ST INSTRUMENT- --CONDITIONS

L561 0 . 19 .26 -6. 96 • # 64 .09 20 A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE ) L352 M 3.05 .90 20 A TENSILE STRENGTH, PRIMARILY PR INTI NG PAPERS, LOAD CFLL < CRE

LI 7 6 X 3.15 5.32 -1. IP - . 10 2.01 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( C RE > L563A 0 3.18 4 . 84 -1. 50 - . 40 2.18 20 A TENSILE STRENGTH, PRIMARILY PRTNTI NG PAPERS, LOAD CELL ( CRF ) LI 85 o 3.33 5.81 -• 62 • 05 1.27 20C TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL (CRE)

L26 1 0 3.36 6.14 34 22 .88 20 A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE ) L2C6 » 3.39 6.24 24 . 25 1 • 24 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE ) L31 8 0 3.50 6.00 37 • 02 .81 20G TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE)

LI 59 0 3.55 6.04 31 - . 00 1.42 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE)

L378 0 3.58 6.10 -• 24 • 01 .72 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE ) L260 X 3.58 6.99 # 49 , 53 . 77 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRF ) L190R 0 3.59 6.23 1 3 • 08 1.12 20A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CELL ( CRF ) LI 41 T 0 3.60 6.11 23 . 00 1 .03 20 A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE ) LI 39 3.62 6.12 20 - • 00 1 . 00 20H TENSILE STRENGTH, PRINTING 1PAPER, CRE. SHORT TEST SPAN

L278 0 3.62 6.13 19 • 00 .90 20 A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS. LOAD CELL ( CRF ) L124C 0 3.62 5.91 38 - # 13 .88 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. LOAD CELL ( CRE ) LI 1 8 0 3.63 6.16 17 • 01 1 .02 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRF )

I 251 3.63 5.82 - . 44 - • 19 1 . 05 20 I TENSILE STRENGTH, PRINTING PAPER, CRE . 20 C, 6 5% ]RH L231 3.63 6.38 • 01 • 1 3 1 .05 20 H TENSILE STRENGTH, PRINTING 1PAPER, CRE:, SHORT TEST SPAN

LI 94 0 3.64 6.20 •• 12 • 02 .69 20 A TENSILE STRENGTH, PRIMARILY PRINTI NG PAPERS. LOAD CFLL ( CRE ) L230 0 3.66 6.08 21 • 06 .75 200 TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE ) L33 1 0 3.67 6.24 07 • 02 1.15 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRF ) LI 2 2 0 3.68 6.11 1 8 - . 06 1 .06 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPFRS

,

LOAD CELL ( CRE ) L24 3 0 3.69 6.23 07 - . 00 .73 2 0 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRE ) L315 0 3.69 6.25 -• 05 • 01 .98 2 0 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. LOAD CELL ( CRE)

LI 00 0 3.72 6.21 07 . . 04 1.51 2 OE TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CELL (CRF)

L39 0 0 3.73 6.46 • 14 . 10 1.05 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRF ) L33 3 0 3.74 6.25 03 - • 03 .68 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRF ) L57 5 * 3.74 5.89 32 - • 24 1 .24 20D TENSILE STRENGTH, PRIMARILY PRINTING PAPFRS, LOAD CFLL ( CRE ) L255 0 3.75 6.4^ • 15 • 09 1.21 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPFRS, LOAD CELL ( CRE )

1.328 0 3.75 6.58 . 25 15 .89 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRE ) L36 0 0 3.75 6.10 14 - • 13 1 .26 20 B TENSILF STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRF ) L442 0 3.75 6.23 03 - • 05 .70 20G TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRE ) L5e7 M 3.76 .63 20 A TENSILE STRFNGTH, PRIMARILY PRINTING PAPERS. LOAD CELL ( CRE L226C 0 3.77 6.39 • 11 • 03 1 . 7*t 20C TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRE )

LI 6 3 0 3.78 6.37 1 0 01 .68 20 D TENSILF STRENGTH, PRIMARILY PR INTING PAPFRS, LOAD CELL ( CRF ) L56 7 0 3.78 6.42 • 13 • 04 .96 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRF ) L372 0 3.78 6.15 - . 08 - . 12 .82 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRF ) LI 31 6 3. 80 6.12 1 0 - • 15 1.18 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( C RE ) L22 3B 0 3.81 6.55 • 26 • 08 .67 20 A TENSILE STRFNGTH, PRIMARILY PRINTING PAPERS. LOAD CFLL ( CRE )

L 1 4 8 0 3.86 6.52 26 # 03 1 .28 20 A TFNSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE ) L574 0 3.86 6.62 • 34 . 09 .94 20 A TENSILE STRF NGTH

,

PRIMARILY PRINTING PAPERS. LOAD CFLL ( CRE ) L59 2 0 3 • 8 7 6.41 • 18 - • 04 .79 20 A TENSILE STRFNGTH

,

PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRE ) LI 15 0 3.88 6.40 • 18 - • 06 .68 20 D TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE ) L309 0 3.91 6.42 • 21 - • 07 1.20 20E TENSILE STRENGTH, PRIMARILY PR INTING PAPERS. LOAD CELL ( CRE ) L291 X 3.92 7.35 97 # 47 1 .65 20 A TFNSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRF)

L559 0 3.94 6.76 • 51 . 10 .99 20C TENSILF STRFNGTH, PRIMARILY PRINTING PAPERS, LOAD CFLL ( CRF ) LI 2 5 0 4.01 6.68 • 48 . 00 1.26 20C TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CELL ( CRF ) L344 0 4.10 6.61 • 48 - • 1

1

1 .08 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. LOAD CELL ( CRF ) LI 67 « 4.25 6.73 • 66 - • 17 1 .38 20G TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CEIL ( CRF )

L 1 4 3 0 4.37 7.85 1 • 64 40 1.13 20 E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE)

L557 0 6.06 10.34 4. 65 . 48 1.02 20C TENSILE STRFNGTH, PRIMARILY PRINTI NG PAPERS, LOAD CFLL ( CRE ) L56 0 0 6.61 10.47 5. 07 • 10 2.29 20C TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CFLL (CRE)

OMEANS

|

3.73 6.29 1.00

9*J* ELL I PSE

i

• 72 • 26 WITH GAMMA • SA !DEGREE S

25
TENSILE STRENGTH, CRE TYPE

SRMPLE J03 = 3.73 K I L0NEWT0N/M SAMPLE J07 = 6.29 K I L0NEWT0N/M

SAMPLE J03 = 12.58 LB/15 MM SAMPLE J07 = 21-21 LB/15 MM

o

C\J

o

COCM

O

C\J CM

O

ID -

CM CD

O

O

CM

O

CD

KIL0NEWT0N/M

I I I I

1 1 1 1 1 1 1 1

1 10.0 11.0 12.0 13.0 14.0 15.0

LB/15 MM

26
REPORT N0. SIS TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T20-2 TABLE 1 TENSILE BREAKING STRENGTH, KI LONE WTO NS PER METFR

TAPPI STANDARD T40A OS-76, TENSILE BREAKING STRENGTH OF PAPFR AND PAPERBOARD (PENDULUM-TYPE TESTER)

SAM PL

F

PRINTING SAMPLE PRINTING TF ST D. 20 LAB JO 3 73 GRAMS PER SQUARE METER J07 85 GRAMS PFR SQUARE METER

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

LI 0

3

3.88 • 1 1 .45 .19 • 92 6.29 -.03 -.07 .31 .88 2 OR O LI 0?

LI 0

0

3.27 -.51 -2.15 .11 . 56 7.04 .*M 1.54 . 34 .97 2 OP X 1 1 08

LI 2 1 3.72 -.06 -.27 .24 1.19 5.22 - 1.10 -2.38 .24 .69 20P X LI 21 LI24P 3.68 -.09 -.40 .23 1.10 6.23 -.1 0 -.21 . 37 1 . 03 2 OP O LI 24

P

L 1 2 8 3.90 • 12 .50 .14 • 70 6.37 .04 .09 .44 1 . 2 ? 5 0T 0 LI 20

LI 40 3. 70 -.08 -. 34 .27 1.33 6.07 -.26 -.56 .3? .91 2 0 P 0 LI 48

L 1 5 8 3.42 -.36 -1.54 .IS . 75 5.46 -.86 -l .86 .39 1 . 09 2 OT 0 LI 68

LI 6 2 3.91 .13 .55 .17 . 85 6.43 • 11 .24 .49 1.37 2 OT 0 LI 62

LI 82L 3.69 -.09 -.37 .17 . 81 6.20 -.12 -.27 .38 1 . 08 20T 0 LI 8?L

L 1 09 4.15 .37 1.55 .17 . 84 6.74 • 42 .90 • 44 1.23 20R r. L! 89

LI 91 P 4.00 . 22 .93 .21 1 • 04 6.36 .04 .09 • 39 1.09 POP 0 t 1 91 P

LI 95 5.04 1.26 5.37 1 .26 6.22 5.01 -1 .31 -2.83 1.33 3.72 20R * LI 95

L21 2 3.60 -. 18 -.77 .20 . 96 6.01 -.31 -.68 .25 .71 2 OR a L212

L21 3 3.48 -.30 -1.26 .27 1 . 31 6.19 -.13 -.28 .32 . 90 20T ft L21 3 L21 8 3.72 -.06 -.24 .10 . 4 7 6.43 • 1 1 .23 .32 • 89 2 0 P ft L21 8 L233 5.77 1 .99 8.44 .28 1 . 36 3.44 -2.89 -6.22 • 21 . 59 2 OQ 0 L23?

L241 .61 -2.97 -12.61 .05 .25 6.37 .04 .09 .27 .74 2 OR 0 L241 L242 3.66 -.12 -.49 .15 • 73 5.80 -.53 -1.14 .35 .97 2 0 Y ft L2 42 L249 3.76 -.02 -.08 .14 . 66 6.39 . 07 .15 .21 .59 2 OP ft L2 49 L25 4 3.53 -.25 -1.05 .17 . 81 6. 02 -.31 -.66 .22 .60 2 0 P a 1.254 L259 4.10 .32 1 .37 .27 1 . 33 7.03 • 7

1

1 .52 .19 .55 20P ft L259 L262 3.81 .04 .15 .11 .5? 6.41 .09 .20 . 31 . 88 20 R 0 L262 L275 3.42 -.36 -1 . 54 .28 1 . 35 5 . 89 - .44 -.95 .27 . 76 20R e L?**5 L2 79P 3.82 • 04 .16 .20 . 95 6.15 -.17 -37 .60 1 .68 20P 6 L?^9P

L285 3.26 -.52 -2.21 .25 1 • 20 4.97 -1 .35 -2.91 .19 . 53 2 0 P * 1285

L31 1 3.63 -.15 -.62 .25 1 .23 5.95 -.37 -.80 .31 . 38 20V ft L31 1 L3 21 3.68 -.10 -.42 .24 1.16 6.72 .40 .85 . 2” . 77 20V ft 1321 L322 2.32 -1.46 -6.19 . 46 2.23 7.04 .72 1.54 .56 1 .56 20 P a L322 L330 3.28 -. 50 -2.11 .60 2.93 7.35 1 . 02 2.20 .31 . 86 20P X L330

L3 3 7 4.04 .26 1.11 .17 .83 6.67 .35 .75 • 74 .94 20V ft 1.3 3 7

L356 3.97 .19 . 80 .15 .75 6.7-r .45 .96 .26 .72 20P ft L356

L362 3.88 • 10 • 41 .26 1.25 6.04 -.28 -.61 .56 1 .57 20 R ft L362

L3 7 0 4.18 . 40 1.70 .29 1 • 40 7.33 1.01 2.18 .28 . 78 20P ft L?70

L3 7 6 3.67 -.11 -.46 .27 1.30 6.07 -.26 -.55 .27 • 76 20P 0 L?76

L39 3 3.91 . 1 3 .54 .17 . 85 6.87 .54 1.17 .27 . 76 2 0 P ft L393

L48 4 3.58 -.20 - . 86 .21 1 • 04 6.00 -.33 -.70 .25 .69 20U ft L4 84 L554 4.10 .32 1 .36 .18 . 06 6.88 . 56 1.21 .26 .69 2 OT ft L554

L556 4.13 . 35 1 . 48 .21 1.03 6.95 .6? 1 .35 .46 1 .38 20P ft L556 L563P 4.02 • 24 1 .02 .32 1.54 6.64 .31 .67 .43 1.30 FOP ft L5 63 p L571 3.90 . 1 3 .53 • 35 1 . 69 6.63 .31 .66 .62 1 .45 2 OP ft L571 L585 3.64 -.14 -.58 .14 . 70 6.4? • 11 .23 .59 1 .65 20V ft L5 85 L599 3.45 -.33 -1.40 .19 • 94 5.93 - .39 -.84 .52 1 .44 20V ft L59C

CR. MEAN 3.78 KIL0NEWT0N/M GRAND MEAN • 6.32 KIL0NEWT0N/M TF ST DETERMINATIONS OJ 0

« SD MEANS - . 24 KIL0NEWT0N/M SD OF MEANS • .46 KILftNEWTftN/M 35 LABS IN GPAVD MEANS

AVERAGF SDR .21 KIL0NEWT0N/M AVERAGE SDR • .36 KILONEWTON/M

GR. MEAN 12.746 LB/15 MM GRAND MEAN • 21 .330 LB/15 MM TOTAL NUMBER OF LABORATORIES REPORTING * 42

Best Values: J03 3.7 + 0.4 kilonewton per meter

J07 6.3 + 0.6 kilonewton per meter

The following laboratories were omitted from the grand means because of extreme test results: 241, 322. The following laboratories appear to have Interchanged

samples : 233. Data from the following laboratories were received

too late for proper processing and inclusion in the grand means: 195.

27
REPORT N6. 5 1

S

TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY l'S’S ANALYSIS T20-2 TABLE 2 TENSILE BREAKING STRENGTH, KILO NEWTONS PER METFR

TAPPI STANDARD T40A OS-70, TENSILE BREAKING STRENGTH OF PAPER AND PAPERBOARD ( PENDULUM- TYPF TESTER)

LAB MEANS COORDINATES AVG CODE F J03 J 07 MAJOR MINOR R. SDR VAR PR0PERTY---TEST INSTRUMENT---C0NDI TI0N S

L241 # .81 6.37 -1. 21 2.71 .50 20 R TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM T°STFP

L32 2 * 2.32 7. 04 04 1.63 1 .89 2 OP TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTE0 L285 * 3.26 4.97 -1. 44 -.09 . 87 20 P TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTFR

LI 08 X 3.27 7.04 . 43 .76 .76 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPFRS, PFNDULUM TESTFR

L3 3 0 X 3.28 7.35 • 72 . 88 1 .90 20P TENSILE STRENGTH, PRIMARILY FRINTING PAPERS, PENDULUM TFSTFR

LI 58 6 3.42 5.46 93 -.03 .92 20T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTFR

L275 0 3.42 5.89 55 .14 1 .06 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTFR

L599 0 3.45 5.93 49 . 14 1.19 20V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PFNDULUM 1 FSTF.R L21 3 0 3.48 6.19 24 .22 1.10 20T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTER

L254 0 3.53 6.02 -• 38 .10 .71 20 P TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TFSTFR

L484 0 3.58 6.00 . 38 .05 .87 20 U TFNSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TFSTFR

L212 0 3.60 6.01 36 .03 .83 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPFRS, PENDULUM TESTFR

L311 0 3.63 5.95 40 -.02 1 .05 20V TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, pendulum Ti STEP

L585 0 3.64 6.43 . 04 . 17 1.17 20V TENSILE STRENGTH. PRIMARILY PRINTING PAPFRS, PENDULUM TFSTFR

L24 2 0 3.66 5.80 -• 5 3 -.12 .85 20 Y TEN3ILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTF.P

L37 6 0 3.67 6.07 28 -.01 1 .03 20 P TFNSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTFR

L32 1 0 3.68 6.72 . 32 .26 .96 20V TENSILE STRENGTH, PRIMARILY PRINTI NG PAPFRS, PFNDULUM TESTER

LI 24P 0 3.68 6.23 13 . 04 1 .07 20P TENSILE STRENGTH, PRIMARILY PR INTI NG PAPERS, PENDULUM TFSTFR

LI 82L 0 3.69 6.20 15 . 03 .94 20T TENS ILF STRFNGTH, PRIMARILY PRINTING PAPERS, PFNDULUM TESTFR

LI 48 0 3.70 6.07 -• 27 1 0 <t 1.12 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 21 X 3.72 5.22 -1 . 03 -.41 .94 20 P TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L218 0 3.72 6.43 . 07 .10 .68 20 P TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM 1 FSTFR

L249 0 3.76 6.39 . 05 .05 .63 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L262 0 3.81 6.41 . 10 • 01 .70 2 0 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTFR

L2 79 P 0 3.82 6.15 -• 14 -.11 1.31 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTFR

L36 2 0 3.88 6.04 22 -.21 1 .41 2 0 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 03 0 3.88 6.29 . 01 -.1 1 .90 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. PENDULUM TFSTFR

LI 2 8 0 3.90 6.37 . 09 -.09 .96 20 T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. PENDULUM TFSTFR

L 57 1 0 3.90 6.63 . 32 .01 1 .57 2 OP TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTFR

L39 3 0 3.91 6.87 •' 54 .11 . 80 2 OP TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 62 0 3.91 6.43 # 15 -.07 1.11 20T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTFR

L355 0 3.97 6.77 , 48 .02 .73 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L191P 0 o o 6.36 . 13 -.18 1.06 20P TENSILE STRF NGTH, PRIMARILY PRINTI NG PAPERS, PENDULUM tf.stf.r L563P 0 4.02 6.64 . . 38 -.09 1.37 20 P TENSILE STRENGTP, PRIMARILY PRINT! NG PAPERS, PENDULUM TESTFR

L337 0 4.04 6.67 • 42 -.09 .89 20V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTFR

L554 0 4.10 6.88 64 -.06 • 78 20T TENSILE STRFNGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTFR

L259 0 4.10 7.03 . 78 . 00 .94 20 P TENSILE STRENGTH. PRIMARILY PRINTING PAPFRS, PENDULUM TFSTFR

L556 0 4.13 6.95 . 71 -.05 1.15 20 P TENSILE STRFNGTH, PRIMARILY PRINTING PAPFRS, PENDULUM TESTER

11 89 0 4.1 5 6.74 . 53 -.16 1 .03 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TFSTF R L3 7 0 0 4.18 7.33 1 . 08 . 06 1 . 09 20 P TENSILE STRFNGTH, PRIMARILY PRINTING PAPFRS, PFNDULUM TFSTFR

LI 95 a 5.04 5.01 - . 66 -1.70 4.97 20 R TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTFR

L233 0 5.77 3.44 -1 . 78 -3.02 .97 200 TENSILE STRFNGTH, PRIMARILY PRINTING PAPFRS. PFNDULUM TESTER

GMFANS

3.78 6.32 1 .00 95 % :ELLIPSE: 1 • 32 • 28 WITH GAMMA • 65 DPGREFS

28
«

TENSILE STRENGTH, PENDULUM TYPE

SAMPLE J03 = 3.78 K I L0NEWT0N/M SAMPLE J07 = 6.32

SAMPLE J03 = 12.7 LB/15 MM SAMPLE J07 = 21.3

KIL0NEWT0N/M

LB/15 MM

CD

C\J

LD

CNJ

CM

CO

C\1

C\J CM

2=

z:

CD

00

OO

O

CD

KIL0NENT0N/M

r r i i i i i 7 8 9 10 11 12 13 14

LB/15 MM

Ti IT 7t T8

29
REPART NA. SIS TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T25-1 TABLE 1 TENSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PACKAGING PAPER

TAPPI STANDARD T49A 0S-70, TENSILE BREAKING PROPERTIES OF PAPER t PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMPLE KRAFT SAMPLE KRAFT ENVELOPE TFST D. - 20 LAB H57 147 GRAMS PER SQUARE METER E63 75 GRAMS1 PER SQUARE METER

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

LI 2 2 117,2 11.3 1 .39 16.0 .99 87.1 4. 5 .77 14.4 1 .36 25P 0 LI 22

LI 2 6 107.7 1 • 8 .22 15.1 .93 84.2 1.6 .28 10. 1 .96 25G 0 T-l 26

LI 51 1 39.

8

33.9 4.16 24. 3 l.Sl 95.6 13.0 2.25 8. 4 . 80 25F * LI 51

LI 74 101.7 -4. 2 -.51 14.4 . 89 80.5 -2.1 -.36 10.1 .95 25Y 0 LI 7a

LI 82 104.9 -1.0 -.13 14.5 .90 88.3 5.7 .98 8. 8 • 8? 2 5B 0 LI 82

L2 3 4B 107.0 1.1 .14 18.0 1 .12 91 .5 8.9 1 .53 13.7 1 .30 25F 0 L234B L237B 98.2 -7.7 -.95 13.2 .82 76.7 -5.9 -1 .02 8. 2 . 78 25H 0 L2 3 7 F L243 90.4 -15.6 -1.91 17,6 1 . 09 82.4 -.2 -.04 8.9 • 84 ?5Z fl L24?

L264 107.4 1.5 . 18 1 2.4 . 77 53.3 -29.4 -5.08 1 2. 4 1.17 2SF * L264 L265 116.6 10.7 1 .31 16.7 1 . 03 80.1 -2.5 -.43 8. 3 .75 25F 0 L265

L267 1 1 4. 9 9.0 1.10 19.6 1 . 21 79.9 -2.7 -.47 9.1 . 86 25F 0 L26-* L273 11 5. 4 9.5 1.17 1 5.4 .95 83.5 . 8 .15 12.5 1.18 25F 0 L273

L2 8 0 96.9 -9.0 -1.10 15.7 .97 88.5 5.9 1 .03 10.6 1 • 01 25B 0 L280

L31 2 1 37.3 31.4 3.86 13.9 . 86 97.3 14.7 2.55 10.5 1 . 00 25 J * L312

L31 8 109. 2 3. 3 .41 1 2.5 .77 88,2 5.6 .96 12.3 1.17 25 A 0 L31 8 L336 109. 3 3.4 .42 10.4 . 64 71 .4 -11.2 -1 .94 10.8 1.02 25A 0 L236

L58 0 101.6 -4.3 -.53 17.7 1 . 09 83. 1.0 .18 7.5 .71 2 5C 0 L580 L604 97.7 -8.3 -1 .02 25.5 1. 58 73.2 -9.4 -1.62 13.0 1.23 2 5 A 6 L604

GP . MEAN • 105.9 J0ULES/SQ M GRAND MEAN • 82.6 JAULES/SQ M TFST DETERMINATIONS - 20

SD WFANS - 8.1 J0ULES/SQ M SD AP MEANS • 5.8 JAULES/SQ M 15 LABS IN GRAND MEANS AVERAGE SDR • 16.2 J0ULES/SQ M AVERAGE SDR - 10.5 J0ULES/SQ M GR. MEAN - 7.255 FT.LB/SQ FT GRAND MEAN • 5.659 FT.LB/SQ FT TOTAL NUMBER OP LABORATORIES REPORTING * 18

Best Values: H57 106 + 11 joules per square meter

E63 83 + 9 joules per square meter

The following laboratories were omitted from the grand means because of extreme test results: 151,

264, 312.

30
REPORT NO. 5 1 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY J9T8 ANALYSIS T25-1 TABLE 2 TENSILE ENERGY ABSORPTION, JOULES PER SOUARE METER - PACKAGING PAPER

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

LAB CODE F MEANS

F57 E63 COORDINATES

MAJOR MINOR

AVG

R. SDR VAR PROPERTY- --TEST INSTRUMENT-- -CONDITIONS

L243 O 50.4 82.4 -15.4 2.1 .97 25 Z TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/LTNE JAWS

L280 0 56.9 88.5 -8.0 7.2 .99 25 B TENSILE ENERGY ABS. , PACKAGING PA PER. LINE/FLAT JAWS

L604 6 57. 7 73. 2 -9.6 -8.0 1 • 40 25A TENSILE ENERGY ABS. .PACKAGING PAPER, FLAT/PLAT JAWS

L237B 0 98.2 76.7 -8.5 -4.6 .80 25H TENSILE ENE RGY ABS. , PACKAGING PAPER, 2-PIN STRAIN GAGE

L50O 0 101.6 83. 7 -4.

1

1.7 .50 25C TENSILE ENERGY ABS. , PACKAGING PAPER. LINE /LINE JAWS

I 1 74 e 101.7 80.5 -4.4 -1 .4 .92 25 Y TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS

LI 8 2 0 1 04.9 88.

3

— . 2 5.8 .87 25B TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/FLAT JAWS

L234B 0 1 07.0 91.5 2.4 0.6 1.21 25H TENSILE ENERGY ABS. , PACKAGING PAPER. 2-PIN STRAIN GAGE

L2 6 4 * 1 07. 4 53.3 -3. 0 -29.2 .97 25F TENSILE ENERGY ABS. .PACKAGING PAPER. LTNE/FLAT JAWS

LI 26 e 1 07.7 84. 2 2.0 1.3 .95 25G TENSILE ENERGY ABS. , PACKAGING PAPFR, l INE/LINF JAWS

L31 8 0 109. 2 88.2 4.1 5.0 .97 25 A tensile ENERGY ABS. . PACKAGING PAPER, FLAT/PLAT JAWS

L336 0 1 09. 3 71.4 1.7 -11.6 . 83 25A TENSILE ENERGY ABS. .PACKAGING PA PER, FLAT/FLAT JAWS

L 2 6 7 0 114.5 79.9 8.5 -4.0 1 .04 25F TENSILE ENERGY ABS. . PACKAGING PAPER. L INE/FLAT JAWS

L2 7 3 0 115.4 83.5 5.5 - .6 1.07 25F TENSILE ENERGY ABS. , PACKAGING PAPER. LINE/FLAT JAWS

L2 6 5 0 116.6 80.1 10.2 -4.1 .91 25F TENSILE ENERGY ABS. . PACKAGING PAPER, FLAT/FLAT JAWS

LI 2 2 0 117.2 87. 1 11.8 2.7 1.18 25 P TENSILF ENERGY ABS. . PACKAGING PAPER, PATTERNED FLAT JAWS

L31 2 n 137. 3 97.3 33.2 9.8 .93 25J TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/FLAT JAWS

LI 51 * 1 39. 8 95.6 35.4 7.8 1.15 25F TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/FLAT JAWS GMEANS

1 05.9 95% 82.6

ELLIPSE: 23.4 16.4

1.00 WITH GAMMA - 8 DEGREFS

31
T .E .R . . PACKAGING PAPERS

ldo

o

r~

in

CD

o

I— CD

Ll_ O

CD in

Ll_ o

ID

LD

O

ID

on

SAMPLE H57 = 106.

SAMPLE H57 = 7.26

J0ULES/SQ M FT.LB/SQ FTSAMPLE E63

SAMPLE E63

83. J0ULES/SQ M 5.66 FT.LB/SQ FT

LOO

O

LD

cn

o

cn

H Q_

n

crCO

C3 S'

CO

SsCD~

)

LD

O

rID

CD

O

CD

LD

LD

cn + , X . « N0T IN GRAND MEANS

CD

LD ANALYSIS T25-1

O o

©

O

O

O

O

o o

o

o

o 0

o

SAMPLE H57

75 80 85 90 95 100 105 1 10 1 15

J0ULES/SQ M

120 125 130 135

5.5 6.0 6.5 7.0 7-5

FT.LB/SQ FT

8.0 8-5 9.0

32
REPORT NO. 51 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 19^8 ANALYSIS T26-1 TABLE 1 TENSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PRINTING PAPER

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

SAMPLE PRINTING SAMPLE PRINTING TFST D. - 20 LAB J03 73 GRAMS PER SQUARE METER J 07 85 GRAMS PER SQUARE METER

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

L100 36.7 2.0 .47 6.4 1 . 33 75.5 • 8 .12 10.1 1.13 26A 6 LI 00

LI 1 5 35. 8 1 • 1 .25 2. 6 . 53 70.4 -4.3 -.62 7.0 .78 26C fl LI 15

LI 1 8 35. 2 • 4 .10 5. 2 1 .09 75.6 • 8 • 12 8.4 .94 26F O LI 18

LI 22 37.8 3.0 .71 6.2 1 . 30 77.5 2.8 .40 8. 2 .92 26L 0 LI 22

LI 3 9 51.7 17. 0 3.98 21.8 4. 53 70.2 -4.6 -.66 8.9 1 . 00 26H * LI 39

LI 59 33.3 -1 .

4

-.34 8.1 1.67 70.0 -4.7 -.68 12.8 1 .43 26F fl LI 59

LI 63 36. 2 1.5 .34 4. 1 . 86 76.6 1 .

8

.27 5.9 .66 26 J 6 116?

LI 85 27. 3 -7.5 -1 . 76 5. 4 1.13 63.7 -11.0 -1 .60 11.8 1 . 3? 2 6C O LI 85 L206 26. 5 -8.3 -1.95 7.5 1.56 67.0 -7.8 -1.13 12.1 1 .35 26 Y 0 L206

L2 31 28.0 -6. 8 -1.59 6. 3 1 . 30 79.9 5. 1 .75 7.0 . 70 26F * L231

L2 5 5 37. 6 2.8 . 67 6.6 1 . 37 84.4 9.6 1 .40 10.8 1 .21 26 P o L255 L309 37. 5 2.7 .65 4.9 1.03 79.8 5. 1 .74 1 0. 8 1 .21 261 0 L309

L31 8 36. 9 2.1 .50 4. 1 . 86 76.8 2.

0

.29 8. 6 . 96 26 A 0 L31 8 L372 33.6 -1 . 1 -.27 3. 0 . 62 68.2 -6.5 -.95 6.0 . 67 26Y 0 L372

L37 8 35. 8 1 . 1 .26 4. 8 . 99 96.5 21 .

7

3.15 12.0 1 . 34 26 A a L*3 78

L393 34. 0 -.8 -.18 2.2 . 46 73.9 -.8 -.12 5. 6 .63 26V 0 L? 9? L442 43. 0 8.2 1 .93 3. 4 . 70 87,? 12.5 1 .81 5. 5 .61 26B fl L44?

L56 7 38. 7 4.0 .94 3. 8 .78 83.9 9.1 1 .32 9.9 1.11 26 A fl L567

L575 36. 2 1 .

5

. 35 4.0 . 84 71 .6 -3. 1 -.46 11.3 1.27 26B 0 LS^F L587 36.

0

1.3 . 30 2.8 . 58 NO DATA REPORTED FOR SAMPLF J07 26C M L587

L59 2 31 .

3

-3.4 -.81 4.3 . 88 63.3 -11.4 -1 .66 7.1 . 80 2.6G fl L592

GR. MEAN - 34.

8

JOULFS/SQ M GRAND MEAN 74.7 JOULES/SQ M TEST DETERMINATIONS • 20 SD MEANS - 4,3 JOULES/SQ M SD OF MEANS - 6.9 JOULFS/SQ M 1 8 LABS TN GRAND MFANS AVERAGE SDR - 4.8 JOULES/SQ M AVERAGE SDR - 8.9 JOULES/SQ M GR. MEAN - 2.381 FT. LB/SQ FT GRAND MEAN - 5.120 FT. LB/SQ FT TOTAL NUMBER OF LABORATORIES REPORTING • 21

Best Values: J03 35 + 7 joules per square meter

J07 75+8 joules per square meter

The following laboratories were omitted from the grand means because of extreme test results: 139,

378.

33
REPORT NO. 51S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY l

9

78 ANALYSIS T26-1 TABLE 2 TFNSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PRINTING PAPER

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

LAB MEANS C00RD INATES AVG CODE F J03 J07 MAJ0R MIN0R R. SDR VAR PR0PERTY-- -TF ST INSTRUMENT- --CONDITIONS

L2 0 6 0 26. 5 6^.0 -10.7 3.8 1 .46 26 Y TENSILE ENERGY ABS. . PRINTING PAPERS, L INE/FLAT JAWS

LI 85 0 27. 3 63. 7 -13.3 1.6 1.22 26C TENSILE ENERGY ABS. , PRI NTING PAPERS, LINE/LINE JAWS

L2 31 * 28. 0 79.9 1 .

5

8.4 1 . 04 26E TENSILE ENERGY ABS. , PRINTING PAPFRS, FLAT/FLAT JAWS

L592 0 31 .

3

63. 3 -11.7 -2.2 .84 26G TENSILE ENERGY ABS. , PRINTING PAPERS, LINE /LINE JAWS

LI 59 0 33.3 70.0 -4.

8

-.9 1.55 26F TENSILE ENERGY ABS. , PRINTING PAPERS, t INE/FLAT JAWS

L372 0 33.6 68.2 -6.3 -2.0 . 65 26 Y TENSILE ENERGY ABS. , PRINTING PAPFRS, LINE/FLAT JAWS L393 0 34.0 73. 9 -1 . 1 .3 .54 26V TENSILE ENERGY ABS. , PRINTING PAPERS, L INE/FLAT JAWS

LI 1 8 0 35.2 75.6 .9 . o 1.01 26E TFNSILE ENERGY ABS. , PRINTING PAPERS, FLAT/FLAT JAWS

LI 1 5 0 35. 8 70.4 -3. 3 -2.9 .66 26C TENSILE ENERGY ABS. , PRINTING PAPERS, L INE/LINE JAWS

L37 8 0 35. 8 96.5 19.8 9. 0 1.17 26A TENSILE ENERGY ABS. , PRINTING PAPFRS, FLAT/FLAT JAWS

L587 M 36. 0 .58 26C TENSILE ENERGY ABS. . PRINTING PAPERS. LINE/LINE JAWS

LI 63 0 36. 2 76.6 2.3 -.5 .76 26 J TENSILE ENERGY ABS. , PRINTING PAPERS, L INE/FLAT JAWS

L57 5 0 36.2 71.6 -2.1 -2.8 1 . 05 26B TENSILE ENERGY ABS. .PRINTING PAPERS, LINE/FLAT JAWS

LI 0 0 0 36.7 75.5 1.6 -1.4 1.23 26A TFNSILE ENERGY ABS. , PRINTING PAPERS, FLAT/PLAT JAWS

L31 8 0 36.9 76. 8 2.8 -1.0 .91 26 A TENSILE ENERGY ABS. , PRINTING PAPFRS, FLAT/FLAT JAWS

L309 0 37.5 79.8 5 .

8

-.1 1.12 261 tensile ENERGY ABS. . PRINTING PAPFRS, FLAT/FLAT JAWS

L2 5S 0 37. 6 84 .

4

9.8 1 .9 1 .29 26 P TENSILE ENERGY ABS. , PRINTING PAPERS, PATTERNED FLAT JAW:

LI 2 2 0 37. 8 77. 5 3.8 -1.4 1.11 26L TENSILE ENERGY ABS. .PRINTING PAPFRS, PATTERNED FLAT JAW: L567 0 38. 7 83. 9 9.9 .7 .95 26 A TENSILE ENERGY ABS. , PRINTING PAPFRS, FLAT/FLAT JAWS

L442 0 43.0 87.2 14.9 -1.5 . 65 26B TFNSILE ENERGY ABS. , PRINTING PAPFRS, LINE/FLAT JAWS

LI 39 0 51 .

7

70.2 3.8 -17.2 2.76 26H tensile ENERGY ABS. , PRINTING PAPERS. 2-PIN STRAIN GAGE GMEANS 34. 8 74.7 1 .00 95 % ;ELLIPSE: 21 • 2 7.5 WITH GAMMA • 62 DEGREES

34
T - E -R PRINTING PAPERS

in

in

o

CD

LD

CD

CO\

QD CD _J ' -

" LD I—

Li_

LD

O

LD

CD

SAMPLE J03 = 35. J0ULES/SQ M SAMPLE J03 = 2.38 FT.LB/SQ FT

SAMPLE J07 = 75.

SAMPLE J07 = 5.12

J0ULES/SQ M FT.LB/SQ FT

LD

cn'

o

CD

LD

00

2= °-

00 a

coco l0 . LJ «> _J

CD—) o

LD

CD

O

CD

LD

LD

^ +.X.* N0T IN GRAND MEANS

O

ANALYSIS T26-1

LU

_J

Q_

CZcr

co

*

c©

© o

o

o

o o

© ©

©

©

©

©

©

©

©

SAMPLE J03

10 15 20 25 30 35 40

J0ULES/SQ M

45 50 55 60

1.0 1.5 2.0 2.5

FT.LB/SQ FT

3.0 3.5 4 .0

35
RFPORT NO. 5 1

S

TAPPT STANDARD T494 0S-7O,

TAPPI COLLABORATIVE REFERENCF PROGRAM JANUARY 197 fl ANALYSIS T28-1 TABLE 1 ELONGATION TO BREAK, PERCENT - PACKAGING PAPER TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION!

SAMPLE KRAFT SAMPLE KRAFT ENVELOPE TEST D. - 20 LAB B57 147 GRAMS PER SQUARE METER F63 75 GRAMS PER :SQUARE METER

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

LI 22 1

.

79 . 02 .12 .13 . 82 3.20 -.01 -.03 . 38 1 .24 28P O LI 2?

LI 2 6 1 .61 -.1 7 -.94 .13 . 83 2.97 -.24 -.94 .28 .93 2 8C O LI 26

LI 51 1.88 . 1 1 .62 .19 1.19 3.60 .39 1.53 .41 1 .35 28B o LI 51

LI 82 1.69 -. 08 -.45 • 12 .79 3.21 .00 .02 .23 .75 28b 0 LI 82 L243 1 .43 -.34 1 .92 .22 1 . 39 3.02 -.19 -.73 .24 .78 28C 0 L243

L264 1.70 -.07 -.38 .15 .98 2.20 -1.01 -3.95 . 37 1 .23 28B ft L?64

1.265 1 .78 .01 .03 .17 1.11 2.85 - • 36 -1.40 .23 .76 28A e l 0 65 L267 1 .79 . 02 .13 .20 1 . 24 2 • -.34 -1 .31 .29 .96 28B 0 I 26” L280 1 .72 -.05 -.30 .17 1 . 08 3.36 .15 .60 .26 . 87 28B 0 L 280

L31 2 2.23 .46 2.61 .15 .95 3. 42 .21 .82 .28 .91 283 0 L31 2

L31 8 1.81 . 04 .22 .13 . 80 3.63 .42 1 .62 . 30 1 . 00 28 A 0 1.318 L32 4 1 .67 -.10 - .58 .09 . 58 2.91 -.30 -1.18 .42 1 .39 28P 0 L32* L336 1 .74 -.03 -.20 • 11 . 70 3.21 .00 .02 .31 1 • 02 28 A 0 L“**6 L580 1.77 -.00 - .01 .28 1.76 3.37 .16 .63 .25 .81 28C- 0 L580

L58

1

1 . 58 -.19 1 .06 .15 . 96 1.70 -1 .51 -5.89 .36 1.19 28 A « L581

L582 1 489 . 12 . 67 • 12 . 75 3.30 .09 .35 .37 1 .22 2 8 A 0 L582

GR. MEAN • 1 .77 PERCENT GRAND MEAN • 3.21 PERCENT TEST DETERMINATIONS * 2 SD MEANS .16 PERCENT SD OF MEANS • .26 PERCENT 14 LABS IN GRAND MF ANS

AVFRAGE SDR -

• 16 PERCENT AVEPAGF SDR - . 30 PERCENT

LI 53 2.20 .43 2.47 • 1 1 . 70 3.36 .15 .59 .37 1 .23 2 8Q LI 53 TOTAL NUMBER OF LABORATORIES REPORTING - 17

Best Values: H57 1.7 + 0.3 percent

E63 3.2 + 0.4 percent

The following laboratories were omitted from the grand means because of extreme test results: 264,

581.

REPORT NO. 5 1 S TAPPI COLLABORATIVE REFFRFNCE PROGRAM JANUARY 1 9”8 ANALYSIS T28-1 TABLE 2 ELONGATION TO BREAK, PERCENT - PACKAGING PAPER

TAPPI STANDARD T494 OS-70, TENSILE BRFAKING PROPERTIES OF PAPER l PAPERBOARD (CONSTANT RATE OF FLONGATTON)

IAB MEANS COORDINATES AVG CODE F H57 E63 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST I NST RUMENT-- -CONDI T I ON

S

L243 0 1.43 3.02 -.31 • 22 1 .09 28C ELONGATION, PACK AG I NG PAPER, LOAD CFLL, LINE/LINE JA*S

L581 ft 1.58 1 . 70 -1.44 -.48 1.07 28A ELONGATION, PACK AG I NG PAPER, LOAD CELL, FLAT/FLAT JAWS

LI 2 6 0 1.61 2.97 -.29 . 04 . 88 28C ELONGATION, PACK AG I NG PAPER, LOAD CELL, LINE/LINF JAWS

L32 4 0 1 .67 2.91 -. 32 -.04 .99 28P ELONGATION, PACK AG I NG PAPFR, LOAD C^LL, PATTERNED FLAT JAWS

LI 82 0 1 .69 3.21 -. 03 .07 • 77 28B ELONGATION, PACKAGING PAPER, LOAD CFLL, LINE/FLAT JAWS

L264 ft 1.70 2.20 -.94 - . 38 1 • 1 C 28B ELONGATION, PACKAGING PAPFR, LOAD CELL, LINE/FLAT JAWS

L2 8 0 O 1 .72 3.36 • 12 • 12 .98 28B ELONGATION, PACK AGING PAPER, LOAD CELL , LI NB/FL AT JAWS

L33 6 fl 1 .74 3.21 -. 01 .03 . 86 28A ELONGATION, PACKAGING PAPER, LOAD CELL, FLAT/FLAT JAWS

L58 0 0 1 .77 3. 37 .14 . 07 1.29 2 8C ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/LTNE JAWS

L26 5 0 1.78 2.85 -. 32 -.16 .93 28 A ELONGATION, PACKAGING PAPFR, LOAD CELL, FLAT/FLAT JAWS

LI 22 0 1 .79 3.20 .00 -.02 1.03 2 8 P ELONGATION, PACKAGING PAPFR, LOAD CELL , P^TTERNF D FLAT JAWS

L2 6 7 0 1.79 2.87 -.29 -.17 1.10 28B ELONGATION, PACK AGT NG PAPER, LOA D CFLL, LINE/FLAT JAWS

L31 8 0 1 .81 3.63 . 39 • 14 .90 28 A ELONGATION, PACK AG I NG PAPFR, LOAD CELL, FLAT/FLAT JAWS

LI 51 0 1 .88 3.60 • 40 . 07 1.27 2 8B ELONGATION, PACK AGING PAPER, LOAD CELL. LINE/FLAT JAWS

L5 82 0 1 .89 3.30 . 1 3 -.07 .99 28 A ELONGATION, PACKAGING PAPER, LOAD CELL, FLAT/FLAT JAWS

LI 5 3 2.20 3.36 .32 - .33 .96 28Q ELONGATION, PACKAGING PAPER, PENDULUM, PATTERNED FLAT JAWS

L31 2 fl 2.23 3.42 • 39 -.32 .93 26B ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/FLAT JAWS

GMEANS

1 .77 3.21 1 . 00 95% ELLIPSE: • 80 • 42 W ITH GAMMA - 64 DEGREES

36
PERCENT

EL0NGRT 1 0N T0 BRERK , PRCKRGING PRPER

SAMPLE H57 = 1 .77 PERCENT

I I I L SAMPLE E63 = 3-21

_i i i PERCENT

I L

o

ooCO

CD

OO

OO

CsJ

ooo

00

CO

C\J

CD

CsJ

•^r

CsJ

fO + . X , « NOT IN GRAND MEANS

CD

LD ANALYSIS T28-1

LU

_J

Q_

CC

CO

O O

O

O

o

nr

o

o

o

o

<$>

SRMPLE H57

0.8 1.0 1.2 1.4 1.6 i ^8 2T0" TTz 2T4" 2.6 2.8

PERCENT

37
REPORT NO • 51 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY !9~8 ANALYSIS T29-1 TABLE 1 ELONGATION TO BREAK, PERCENT - PRINTING PAPFR

TAPPI STANDARD T494 03-70, TENSILE BREAKING PROPERTIES OF PAPER l PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMPLE PRINTING SAMPLF PRINTING TFST D. • 20

LAB J03 73 GRAMS PER SQUARE METER J 07 85 GRAMS PER SQUARE Mr TER CODE MEAN DEV N o DEV SDR R. SDR MEAN DEV N . DEV SDR R. SDR VAR F IAB

LI 00 1 ,52 -.02 -.16 .16 1.12 1 . 82 -.09 -.45 . 1 3 . 89 2 9 \ << LI 00

LI 1 8 1 • 56 . 02 .16 .14 1 . 00 1 .96 .05 . 24 . 1 1 • 75 29 A O LI 1 8 LI 22 1 . 58 . 04 . 30 .19 1.32 1 .94 . 03 .15 . 09 . 64 29 P fl 1122

LI 41 T 1.35 -.20 -1.42 .11 . 73 1 .6-7 - .24 1 .23 . 1 5 1 . 05 29 D fl L! 41 t

LI 76 1 .23 “•31 -2.27 .22 1 . 54 1 .60 -.31 1 .59 .26 1 .79 29 R O LI 76

L 1 85 1 .43 -.11 -.79 .14 . 97 1 .78 -.1? -.66 .17 1.16 29C 0 LI 85

LI 9 OR 1.43 -.11 -.78 .15 1 . 07 1 .82 -.10 -.49 . 1 6 1 . 07 .2 9 A 0 L190R

L23 1 1 .72 . 1 8 1 . 29 .20 1 . 38 2.27 .36 1 .81 .14 .95 29 A ff L? 31 L255 1 .60 .06 . 42 .18 1 . 23 2.03 .12 .59 .18 1 .20 2 9 P 0 12 55 L309 1.71 .16 1 .20 .12 . 84 2.13 .2? 1.10 .13 .90 29 A O L3 09 L318 1 .“>2 . 1 8 1 .31 .13 . 93 2.08 .17 . 84 .13 . 89 29 A fi L?1 9 L344 1.57 .03 .19 .11 .77 1 .79 -.13 -.64 .19 1.28 29 * 0 L344

L372 1 .46 -.08 -.62 . 05 . 33 1 .67 -.24 1.23 .11 .78 29 R n L 3

“, 2 L37 8 1.63 . 09 .64 .24 1.68 2.23 .32 1 .60 .21 1 .42 29 A rt L3’’& L442 1.72 . 1 8 1 . 29 .10 . 70 2.10 .19 .95 .10 .67 29 h 0 LA 4 0

L56 1 20.34 18.80 1 36.72 1 .47 10. 21 37.68 35.77 181.31 2.30 15.75 29 B * L561 L567 1 .57 . 02 .17 .10 . 70 1 .96 .05 .25 .10 .67 29 K 0 L5 6 7 L575 1.54 . 00 . 02 . 1 1 . 76 1 . 86 -.05 -.26 .15 1 .03 79* fl L5 “, 5 L587 1 . 46 -. 08 -.58 .O'? . 46 NO DATA RFPORTED FOR S> M PLF J 0

7

29C M L5B7 L592 1.41 -.13 -.96 .14 . 94 1.72 -.19 -.98 .13 . 87 29C <=» 1.5 9?

GR. MEAN - 1.54 PFRCENT GRAND MEAN “ 1 .91 PERCENT TEST DETERMINATIONS 20 SD MEANS - .14 PERCENT SD OF MEANS - .20 PERCENT 1 8 LABS IN GRAND MEANS

AVERAGE SDR - .14 PERCENT AVFRAGF SDR - .15 PERCENT

L242 2.16 . 62 4.53 .11 . 75 2.13 .22 1.12 . 1 3 .90 2 9 R . 1242 L484 1 .55 . 01 . 06 .29 2. 00 1 .74 -.17 -.86 .20 1 .34 29 R L4 84 TOTAL NUMBER OF LABORATORIES REPORTING - 22

Best Values: J03 1.5 + 0.2 percent

J07 1.9 + 0.3 percent

Data from the following laboratories were not understood: 561.

38
REPORT NO. 5 1 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T29-1 TABLE 2 ELONGATION TO BREAK, PERCENT - PRINTING PAPER

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

LAB MEANS COORDINATES AVG CODE F JO? J 07 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST I N ST RU ME NT ---CONDI TTON S

LI 76 O 1 .23 1.60 -.43 .08 1 . 66 29B EL0NGATI ON, PRINTING PAPERS, LOAD CELL, LINE/FLAT JAWS

LI 41 T 0 1 .35 1 . 67 -.31 .03 . 89 29D ELONGAT I ON, PRINTING PAPF RS, LOAD CFLL, 2-PIN STRAIN GAGE

L592 0 1 .41 1 . 72 23 . 00 . 90 29C ELONGATION, PPINTING PAPERS, LOAD CELL, LINE/LINE JAWS

LI 85 0 1 .43 1 . 78 -.17 . 02 1 .06 29C ELONGAT I ON, PRINTING PAPERS, LOAD CELL, LINE/LTNE JAWS

LI 90R 0 1 .43 1 . 82 -.14 • 04 1 .o^ 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L37 2 o 1.46 1 .67 -.25 - . 07 . 56 29 B ELONGATION, PRINTING PAPERS, LOAD CFLL , LINE/FLAT JAWS

L587 M 1 .46 .46 29C ELONGATI ON, PRINTING PAPERS, LOAD CELL , LINE/LINF JAWS

LI 0 0 0 1 .52 1 . 82 -. 09 -. 03 1 .00 29 A EL0NGATI ON, P R INTI NG PAPERS, LOAD CELL, FLAT/FLAT JAWS

L57S o 1 .54 1 . 86 -. 04 - . 03 . 89 29 A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FL AT JAWS

L484 1 .55 1 . 74 -.14 -.10 1.67 29 R ELONGAT ION, PRINTING PAPFRS, PFNDULUM, FLAT/FLAT JAWS

LI 1 8 o 1 .56 1 .96 . 05 .01 . 87 29 A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L56 7 0 1.57 1 .96 . 05 .01 . 69 29 A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L344 6 1 .5“* 1 . 79 -. 09 -. 09 1.02 29 A ELONGAT I ON, PRINTING PAPFRS, LOAD CELL, FLAT/FLAT JAWS

LI 22 0 l .58 1.94 . 05 -.02 . 98 29P ELONGATI ON, PRINTING PAPERS, LOAD CELL , PATTERNED FLAT JAWS

L2 5 5 0 1 .60 2.03 .13 . 02 1.22 29 P ELONGAT I ON, PRINTING PAPERS, LOAD CELL , PATTERNFD FLAT JAWS

L37 8 o 1.6 3 2.23 . 31 . 1 0 1 . 55 29 A ELONGATION, PRINTING PAPERS, LOAD CELL , FL AT/FI AT JAWS

L309 o 1.71 2.13 . 27 -.02 . 87 29A ELONGATION, PRINTING PAPERS, LOAD CELL , FLAT/FLAT JAWS

L2 31 fl 1 .72 2. 27 . 40 . 05 1.16 29 A ELONGATION, PRINTING PAPFRS, LOAD CELL, FLAT/FL AT JAWS

L44 2 0 1 .72 2.10 . 25 -.04 . 68 29B ELONGATION, PRINTING PAPERS, LOAD CELL, LINE/FLAT JAWS

L31 8 0 1 .72 2. 08 • 24 -.06 .91 29 A ELONGAT ION .PRINTING PAPERS, LOAD CELL. FLAT/FLAT JAWS

1.2 4 2 2.16 2.1 3 .53 -.39 . 83 29 R ELONGATION, PRINTING PAPERS, PFNDULUM, FLAT/FLAT JAWS

L5 6 1 20.34 37. 68 40. 1 8 4.31 12.98 29 B ELONGATI ON, PRINTING papers.load CELL, LINE/FL AT JAWS

GMFANS

1 .64 1.91 1 .00 95% FLLIPSE: .65 . 14 WITH GAMMA - 56 DEGREES

39
PERCENT

EL0NGRT I 0N T0 BRERK , PRINTING PRPER

SAMPLE J03 = 1 .54 PERCENT

_J L_ _i i : i L_ SAMPLE J07 = 1.91 PERCENT

1 1 I 1 I I L_ ^ + . X . a N0T IN GRAND MEANS

O

“3 ANALYSIS T29-1

LjJ

I Q_

z:CL

CO

O

O

O

8

o

©©

o

©

o

©

o ©

o

Q

©

SRMPLE J03

0.8 0T9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2-1 2.2 2-3

PERCENT

40
REPORT NO. 51S TAPPI COLLABORATI VE REFERENCE PROGRAM ANALYSIS T30-1 TABLE 1 FOLDING ENDURANCE (MIT), DOUBLE FOLDS

TAPPI STANDARD T51 ! SU-69

JANUARY 1

9

7 8

SAMPLE PRINTING SAMPLE PRINTING TEST D. 1 5 LAB H23 91 GRAMS PER SQUARE METER H35 151 GRAMS PER :SQUARE METER

C6DE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI 00M 533. 128. .51 51 . .97 103. 33. 1 . 00 19. .81 30M O LI 00M

LI OON 647 . 242. 1.72 125. 1 . 34 59. -10. -.31 14. .59 30N 0 LI OON

LI 05 316. --89. -.64 61. . 66 34. -36 . -1.08 9. .38 30M O LI 05

LI 1 8 466. 61 . .43 91 . • 58 68. -1 . -.03 19. . 82 3CD 0 LI 1 8 LI 21 "59 . 54. .38 77. . 83 61 . -9 . - • 27 25. 1 .05 30 M 0 LI 21

LI 2 2 790 . 385. 2.74 1 64. 1 . 76 1 63. 93. 2.80 58. 2.44 30 M « LI 22

L 1 2 4 349 . -56 . -.40 76. . 82 65. -1 . -.02 29. 1 .22 30N H LI 24 1150 210. -195. -1 . 39 56. .6.0 1 3. -56. -1.70 8. • 74 3 0 M 0 LI 50

LI 58 116. -289 . -2.06 49. • 52 15. -51 . -1.53 7. .29 20N 0 LI 58

LI 59 341 . -64. - .46 87. • 94 1 06. 36. 1 .09 35. 1.48 7 ON 0 LI 59

LI 62 409. 3. .02 96. 1 . 03 53. -17. -.51 21 . . 37 SOM 0 LI 62

LI 6 3 301 . -104. -.74 66. .71 97. 27. . 81 38. 1 .59 3 ON 0 1,1 63

LI 76 413. 7. .05 110. 1.18 116. 47. 1 .41 23. 1 .40 30N 0 LI ~*6 LI 82M 678. 273. 1 . 94 50. . 97 95. 29. . 88 26. 1 . 09 20 M 0 LI 82 M

LI 85 650 . 245. 1 . 74 160. 1 . 72 1 1 3. 44. 1 . 32 26 • 1.12 SON fl L 1 85 L190C 366 . -39. -.28 1 04. 1.11 56. -14. -.42 26. 1.11 SON 0 LI 90C

L21 2 445 . 39. .28 52. .58 57. -12. -.37 ! 1 . .46 SOM 0 L2 12 L223F 480 . 74. .53 57. 1 . 05 69. -1 . -.02 23. . 98 3 0M 0 L223F

L23 0 4 10. 5. .03 53. .57 57. -13. -.38 18. . 76 SON 0 L230

L232 2^2. -133. -.95 248 . 2. 67 21". 145. 4.35 196. 8.30 3 ON X L 2 32

L236 267. -138. -.58 74. . 80 40. -30. -.89 16. . 66 3 ON 0 L2 36 L2 3 8A 3 39 . -67. -.47 117. 1.25 42. -28. -.84 19. .79 30 N 0 L238A L238B 290. -115. - .82 65. . 70 38. -31 . -.95 7?. .91 SOD 0 l 7 38B L243 517. 111. .79 1 34. 1 • 44 1 06. 36. 1 . 09 34. 1 .46 SOD fl L24-» L254 378. -28. - .20 52. . 99 63. -6. -.19 29. 1 .21 SOM 0 L2 54

L262 371 . -34. -.24 83. . 89 52. -18. -.54 15. .62 3 ON' 0 L262

1275 482. 77. . 55 85. .91 60. -10. -.30 40. 1 . 67 SON 0 I 2 75 L278 2^5. -130. - .52 95. 1. 06 56. 26. .79 46. 1 .96 30C 0 I 2 7 8 L279 515. 109. . 78 65. • 69 79. 10. .30 18. . 78 30N 0 L2 79 L285A 289. -116. -.82 67. • 72 50. -20. -.59 43. 1 .8! 30N 0 1.7 85 A L285B 234 . -171 . -1 .22 1 07. 1.15 21 . -49. -1.46 18. • 77 SON 0 L285B

L299 417, 1 1 . .08 95. 1 . 02 46. -24. -.71 23. .99 3 ON 0 L299

L321 1182. 7^7. 5.53 354. 3.80 205. 135. 4 . 0"7 61 . 2.57 SOM 0 T.321 L326N 306. -99. -.70 60. . 65 1 34. 64. 1 .93 13. .57 ?0N « L326N

L339 77. -328. -2.33 31 . • 34 4. -66. -1 .98 1 . . 05 SON 0 L339

L341 357. >48. -.34 79. . 85 "9. -21 . -.63 16. .68 3 OC 0 1341 L366A 277 . -129. -.91 1 06. 1.14 41 . -28. -.86 12. .52 3 ON fl L366A

L37 6 361 . >4 A . -.32 115. 1.24 42. -27. -.83 22. .92 SON fl L7^6

L37 8 529. 124. . 88 142. 1 . 53 73. 4 . • 1 1 23. .98 30N 0 L378

L388 457. 52. .37 96. 1.03 56. -14 . -.41 30. 1.25 SON fl L 708

L39 0 307. -98. - . 70 88. . 95 34. -35. -1 . 06 18. .78 30N fl L 790 L396M 407. 2. .02 79. . 85 110. 40. 1 .20 28. 1 . 20 30N fl L356M

L396S 523. 118. • 84 65. • 74 855. 786. 23.65 1 70. 7.17 SOT 0 L396S

L565 540 . 135. .56 220. 2. 36 1 30. 60. 1 .81 37. 1 .58 30N fl L565

L567 531 . 126. .89 72. . 77 77. 7 . .22 21 . .90 SON fl L567

L589 117. -288. -2.05 34. . 36 60. -5 • -.28 17. .71 30N fl L5P9

L599 484 . 79. .56 1 22. 1. 31 83. 13. . 35 25. 1 . 40 3 OC fl L595

GR. MEAN 405 . DOU 8LF FOLDS GRAND MEAN - 70. DOUBLE FOLDS TEST DETERMINATIONS - 1 5 SD MEANS - 141 . DOUBLE FOLDS SD OF MEANS * 33. DOUBLE FOLDS 43 LABS IN GRAND MFANS

AVERAGE SDR - 93. DOUBLE FOLDS AVERAGE SDR • 24. DOUBLE FOLDS

LI 4 3 55. -351 . - 2.49 18. .19 91 . 22. • 65 97. 4.11 3 OT Ll 43

LI 82

S

375 . = 30. -.21 1 04. 1.11 422. 352. 10.60 170. 7.20 3 OS LI 82 S L190D 218. -188. - 1.33 34. . 37 465. 396. 11.9! 1 39. 5.89 SOS Ll SOD

L280 318. -87. -.62 131. 1.41 69. -1 . -.02 29. 1 . 24 30K 12 80 L326S 275. -131. -.93 66. .71 523. 453. 1 3.65 231 . 9.77 SOS L226S

L366B 388. -1 -.12 75. . 81 73. 4. . 1 1 70. 2 . 98 30T L366B

L5 8 1 458. 53. .38 53. • 57 589. 519. 15.63 2 09. 8.82 3 OT L58! TOTAL NUMBER OF LABORATORIES REPORTING - Best Values: H23 600 double folds

1135 100 double folds

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

321, 339. Data from laboratory 396S belongs in the lower portion of the table. The data was taken on a non-standard instrument (+ Flag).

The ISO (International Standards Organization) is proposing that MIT folding endurance be reported

as the logarithm (to the base 10) of the double

fold instead of the double fold as in the past

.

Please see page 44 of this report for a demon- stration of this proposal.

41
REPORT NO. 51 S TAPPI COLLABORATIVE REFERENCE1 PROGRAM JANUARY 1 9^8 ANALYSIS T30-1 TABLE 2 FOLDING ENDURANCE (MIT), DOUBLE FOLDS

TAPPI STANDARD T51 1 SU-69

LAB MEANS COORDINATES AVG CODE F H23 H35 MAJOR MINOR R.SDR VA R PROPERTY- --TEST INSTRUMENT- --CONDITIONS

LI A3 * 55 . 91 . -344. 72. 2.15 30T FflLDING ENDURANCF

,

SCHOPPER, TMT L339 ft 77 . A . -334. -18. .19 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 58 0 116. 19. -294. - 8 . . 40 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L5 8 9 0 1 17. 60. -286. 32. . 54 30N FOLDING ENDURANCE, MIT. NO CF NTRIFUG AL FAN

LI 50 0 210 . 13. -201 . -28. . 47 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

LI 90D 218. 465. -129. 419. 3.13 SOS FOLDING ENDURANCE, SCHOPPER, LEIPZIG L285B o 234. 21 • -176. -23. .96 30N FOLDING ENDURANCF, MIT, NO CENTRIFUGAL FAN

L236 0 267. 40. -141 . -9. .73 30N FOLDING ENDURANCF, MIT. NO CENTRIFUGAL FAN

L232 X 272. 214 . - 111 . 162. 5. 49 30N FOLDING ENDURANCF, MIT, NO CENTRIFUGAL FAN

L32 6 S 275. 523. -64. 468. 5.24 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

L278 0 275. 96. -125. 45. 1.51 30C FOLDING ENDURANCE, MIT, CIRCULATING IAN IN CETLTNG

L366A o 277. 41 . -131 . - 10 . .83 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN L285A 0 289. 50 . -117. -3. 1 .26 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN L238B o 290. 38. -118. -15. .81 30 D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HFATI NG

LI 63 0 301 . 9"’

.

-99. 42. 1.15 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN L326N * 306. 1 34 . -89. 78. .6 1 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L39 0 fl 307. 34. - 102 . -21 . .86 SON FOLDING ENDURANCE, MIT, NO CF NTR I FUG AL FAN

LI 05 0 316. 34. -9 4. -23. . 52 SOM FOLDING ENDURANCE, MIT, WITF CENTRIFUGAL FAN

L2 8 0 318. 69. - 86 . 12 . 1 . 32 30 K FOLDING ENDURANCF, KOHLE R- MOL I

N

L238A 0 339. 42. -70. -18. 1.02 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 59 fl 341 . 1 06. -59. 45. 1 .21 SON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 24 0 349. 69. -56. 8 . 1.02 SON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L3A1 0 357. 49. -51 . -14. .77 30C FOLDING ENDURANCF, MIT, CIRCULATING FAN IN CEILING

L37 6 fl 361 . 42. -48. -21 . 1.08 SON FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

LI 90C 0 366. 56. -41 . - 8 . 1.11 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L262 0 371 . 52. -36. -13. .76 SON FOLDING ENDURANCE. MIT, NO CENTRIFUGAL PAN

LI 82 S 375. 422. 21 . 353. 4.16 30S FOLDING ENDURANCF, SCHOPPER, LFIP7IG

L254 0 3^8 . 63. -28. - 2 . 1.10 30 M FOLDING ENDURANCE, MIT, WITR CENTRIFUGAL FAN L366B 3ee

.

73. -16. 6 . 1 .89 30T FOLDING ENDURANCE, SCHOPPER. TMT L396M 0 407. 110 . 8 . 39. 1 . 02 30N FOLDING ENDURANCE. MIT, N’O CENTRIFUGAL FAN

LI 62 0 409 . 53. 1 . -17. .95 30 M FOLDING ENDURANCF, MIT, WITH CENTRIFUGAL FAN

L2 3 0 0 410. 57. 3 # -13. .67 30 N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

LI 76 o 413. 1 16. 14. 45. 1.29 30N FOLDING ENDURANCF, MIT. NO CFNTkIFUGAL FAN L299 0 417. 46. 8 . -25. 1 . 00 SON FOLDING ENDURANCF, MIT, NO CFNTRIFUGAL FAN

L212 0 445 , 57. 37. -18. .72 30 M FOLDING ENDURANCE, m r t , WITH CENTRIFUGAL FAN L388 0 457. 56. 50. -21 . 1.14 30N FOLDING ENDURANCE, MTT, NO CFNTRIFUGAL FAN

L58I 458. 589. 1 2 7 • 506. 4.69 SOT FOLDING ENDURANCE, SCHOPPER, TMI

LI 21 o 459 . 61 . 52. -17. .94 SOM FO LD I NG ENDURANCE, MIT. WITH CFNTRIFUGAL FAN

LI 1 8 0 466. 68 . 60. - 10 . .90 30 D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCF HFATI NG L223F 0 480. 69. 74. - 11 . 1.01 30 M FOLDING ENDURANCF. MIT, WITH CENTRIFUGAL FAN L275 o 482. 60. 75. -21 . 1.29 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN L599 0 484 . 83. 80. 1 . 1 .40 30C FOLDING ENDURANCE, MIT. CIRCULATING FAN IN CEILING

L279 0 515. 79. 110 . - 6 . • 74 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L243 fl 517 . 106. 115. 20 . 1 .45 30 D FOLDING ENDURANCF. MIT. MODIFIED DRIVE TO REDUCE HEATING L396S * 523. 855. 230. 760. 3.96 30 T FOLDING ENDURANCF, SCHOPPER, TMI

1.3 78 0 529. 73. 123. -14. 1 . 25 30 N FOLDING ENDURANCE, MIT, NO CFNTRIFUGAL FAN

L567 fl 531 . 77. 125. -11 . . 84 30 N FOLDING ENDURANCE, MIT, NO CFNTRIFUGAL FAN

LI 00M 0 533. 103. 132. 14. • 89 30M FOLDING ENDURANCE, MTT, WITH CENTRIFUGAL FAN

1565 fl 540 . 1 30. 142. 40. 1.97 30N FOLDING ENDURANCE, MIT, NO CFNTRIFUGAL FAN

LI 00N o 647. 59. 238. -45. . 96 SON FOLDING ENDURANCE, MIT. NO CFNTRIFUGAL FAN

LI 85 o 650. 113. 249. 8 . 1 .42 30 N FOLDING ENDURANCE, MTT, NO CENTRIFUGAL PAN

LI 82

M

0 6 7 8 . 99. 27 4. - 10 . 1 .03 30 M FOLDING ENDURANCE, MIT, WITH CF.NTRTFUGAI. FAN

LI 2 2 « 790. 1 63. 394. 36. 2.10 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L321 ft 1 182. 205. 788. 22 . 3.19 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN GMEANS

405. 70. 1 . 00 95% FLLI PSE: 36 5. 68. WITH GAMMA • 8 DFGR2ES

42
DOUBLE

F0LDS

100

200

300

400

500

600

700

800

900

FOLDING ENDURRNCE (MIT)

SAMPLE H23 = 405. DOUBLE FOLDS SAMPLE H35 = 70. DOUBLE FOLDS

DOUBLE FOLDS

43
REPORT NO. 51

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T30-2 TABLE 1 FOLDING ENDURANCF (MIT)

DATA IS LOO( BASE 1 0 ) OF THE DOUBLE FOLD MEASUREMENT

JANUARY 1 c TM

SAMPLF PRINTING SAMPLE PRINTING TEST D. - 1 5 LAB H23 91 GRAMS PER SQUARE METER H35 151 GRAMS PER SQUARE METER

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

LI 00M 2.721 . 1 30 .97 . 079 . 73 2.006 .237 1 . 00 . 0^9 .47 30M H L" 00M

LI 00N 2. 803 .21 3 1 . 58 . 087 . 81 1 . 764 - . 004 -.02 . 094 • 56 3 ON 0 LJ 00N

LI 0 5 2.491 -.099 - . 74 . 089 . 82 1.511 - .258 -1 .09 .132 • 79 30 M 0 LI 05

LI 1 8 2. 660 . 070 . 52 . 088 . 82 1.816 . 048 . 20 . 140 . 84 3 0 D o L 1 I 8

LI 21 2. 655 . 065 .48 . 081 • 75 1 . 748 - . 020 -.09 . 188 1.12 30M 0 T 1 7 1

LI 22 2. 889 .298 2.22 . 09 3 . 86 2.179 .41 0 1.74 . 187 1.1? 3 OM 0 LI 22

LI 2 4 2. 52 3 -.058 -.43 . 09 6 . 89 1 . 804 .036 .15 .181 1 . 08 3 ON 0 LI ?

LI 50 2.31 1 - .280 -2.08 . 104 • 96 1 . 059 -.710 -3.01 • 240 1 .44 ? 0 to e 1.1 50

LI 5 8 2. 032 -.558 -4.15 . 172 1.59 1.253 - .51 6 -2 .19 .141 . 85 30N X I 1 58

LI 59 2.51 7 -.073 -.55 .126 1.16 2.00? .235 1 . 00 .142 .85 30N 0 LI 59

LI 62 2.599 .009 .07 .109 1 . 01 1.690 -.079 -.34 .174 1 .04 ? OM 0 LI 62

LI 63 2. 469 -.1 22 - .90 . 09 8 .91 1 . 955 .187 • 79 . 166 .99 30N 0 LI 63

LI 76 2.599 .008 .06 .133 1 .23 2. 046 . 277 1.18 . 142 . 85 3GN 0 LI 76

LI 822.828 . 237 1.76 . 056 . 52 1 . 981 • 212 .90 .114 .69 30M 0 LI 82 M

LI 85 2.802 .21 1 1.57 .101 . 93 2. 044 .275 1.17 .101 .60 30 N 0 LI 85 L190C 2.548 -.042 -.32 .119 1.10 1 . 701 -.068 -.29 . 207 1 .24 3 ON 0 l 1 col

L21 2 2.638 . 048 .36 . 097 .90 1.751 -. oi 7 -.07 . 082 .49 30 M 0 L21 2 L223F 2.672 • 062 .61 . 092 . 86 1 .813 . 044 . 19 . 1 62 .97 3 OM 0 L223F

L2 3 0 2.609 . 019 .14 . 058 . 54 1.735 - . 034 -.14 .135 .81 30 N 0 L2 30

L2 3 2 2.09 6 - . 494 -3.67 . 653 6.04 2.079 .31 1 1.32 .538 3. 22 SON X L2 32 L236 2.414 -.177 -1.31 . 1 09 1 . 01 1 . 569 -.200 -.85 . 180 1.08 ’ON 0 L2 ?6

L2 38A 2. 505 -.085 -.64 .153 1.42 1 . 580 -.189 -.80 .196 1.17 SON 0 L238A L238B 2.452 -.138 -1.03 . 1 04 .96 1 .519 -.250 -1.06 . 244 1 .46 0 P 0 L238B

L243 2.700 .110 .82 . 107 . 99 2.007 . 230 1.01 . 127 .76 SOD 0 L24?

L254 2.563 -.027 -.20 .116 1 . 07 1 . 764 - . 004 -.0? . 1 88 1.13 ? OM 0 L254

L262 2. 561 -.030 -. 22 . 091 . 84 1 . 697 - . 071 -.30 .124 • 74 SON 0 L262

L2 7 5 2.677 . 087 .64 . 079 . 73 1 .693 -.075 -.32 .272 1 .63 “ON 0 L?75

L27 8 2.412 -.178 -1 .32 . 164 1. 52 1 .941 .173 .73 . 188 1.12 30C 0 L278 L279 2.708 .118 .88 . 054 . 50 1 .890 .121 .51 . 096 .57 30N 0 I 279 L285A 2.450 -.141 -1 .05 . 100 1 . 00 1 . 56 8 - .201 -.85 .347 o CD (VI 30N 0 L2 8 C A L285B 2.31 3 -.277 -2.06 . 255 2.36 1 .208 - .561 -2.38 . 307 l . 84 SON 0 L285R

L299 2.608 .018 . 13 . 106 .90 1 .614 -.154 - .66 .21 1 1 .26 3 ON 0 L2 99 L32

3.057 .467 3.47 .116 1 . 07 2.293 .524 2.22 .134 .81 30 M 0 LS21 L326N 2.4 7 8 -.112 -.84 . 089 . 83 2.124 .355 1.51 • 042 .25 3 ON * l 3?6N L339 1 . 847 -.743 -5.52 . 205 1 . 90 .577 -1.191 -5.05 .123 •

"? 4 SON 0 L379

L341 2.542 - .048 -.36 . 099 .92 1 . 666 -.103 - . 44 . 139 .83 30C 0 LS41 L366A 2.412 -.178 -1 .33 .168 1 . 55 1 . 595 -.173 -.73 . 1 38 . 83 SON 0 I ’ 66 A L376 2.534 - . 056 -.42 .152 1.40 1 . 575 -. 194 -. 82 .21 6 1 .29 SON 0 L 3 “6 L37 8 2. 708 • 118 . 88 .120 1.11 1 . 847 . 078 . 33 .131 . 79 SON 0 L?~8

L388 2.651 . 061 . 45 . 095 . 88 1 • 677 - . 091 -.39 .273 1 .64 SON 0 L388

L39 0 2.471 -.119 -.89 .123 1.14 1 . 494 -.275 -1.17 . 192 1 .15 SON 0 LS90

L396M 2.603 .013 • 09 . 081 .75 2.026 . 257 1 .09 .112 .68 30N 0 L396W L396S 2.71 5 .125 . 93 . 057 . 53 2.924 1.155 4.90 . 086 .52 SOT 0 1.3959 L56 5 2.704 • 1 14 . 85 . 160 1 . 48 2.095 .326 1 .39 .131 . 78 30N 0 L565 LS67 2.721 • 1 31 .97 . 062 .50 1 . 872 . 103 • 44 .115 .69 3CN 0 L567

1589 2. 052 -.539 -4 . 00 . 132 1 .22 1 . 766 -. 003 -.01 .117 .70 SON X L589 L599 2.672 .082 .61 . 107 .99 1 . 887 .119 .50 . 158 . 94 3 OC 0 L599

GR. MEAN • 2.590 L0G( 1

) FOLD GRAND MEAN -

1 . 769 L0G( 1

) FOLD TEST DETERMINATIONS • 1 5 SD MEANS - . 1 35 L0G( 1

) FOLD SD 0F MEANS • .236 L0G( 1 0 ) FOLD 41 LABS IN GRAND MF AN S AVERAGE SDR -

. 100 L0G<

0 ) F0LD AVERAGE SDR • .167 L0G< 1 0 ) FOLD

LI 4 3 1.714 - .876 -6.51 .151 1 . 39 1 . 632 -.137 -.50 .640 3.83 SOT LI 43

LI 82

2.557 -.033 -.25 • 131 1 .21 2.591 • 822 3 . 49 . 1 82 1 . 09 SOS LI 82

L190D 2.332 -.250 -1 .92 . 070 . 65 2.650 . 882 3.74 .127 .76 30S LI 90D

L280 2.474 -.116 -.87 .157 1 .45 1.810 . 041 . 1 ? . 154 . 93 3 OK L280 L326S 2.428 -.163 - 1 .21 .101 . 93 2.680 .91 1 3.87 . 190 1.14 SOS L326S L366B 2.581 - .01 0 -.07 . 092 . 85 1 .726 - . 043 -.18 • ?4 7 2 . 08 30T L366B

L58 1 2.658 .068 .51 . 050 . 46 2.745 .977 4.14 .151 .90 SOT L581 TOTAL NUMBER OF LABORATORIES REPORTING - 54

The ISO (International Standards Organization) is proposing that MIT folding endurance be reported as the logarithm (to the base

10) of the double fold instead of the double fold as in the past.

Analysis T30-1 in this report is the same as in the past with no changes. This 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.

Raw data (Folding number

in double folds)

207

166

151

332 260

137

199 230

210

log (base 10) of raw d.ita

mean of raw data mean of logs "Folding endurance"
REPORT NO. SIS TAPPI COLLABORATI VE REFERENCE PROGRAM JANUARY 1^8

ANALYSIS T30-? TABLE 2 FOLDING ENDURANCE (MIT)

DATA IS LOG< BASE 1 0 ) OF THE DOUBLE FOLD MEASUREMENT

LAB MEANS COORDINATES AVG CODS F H23 H35 MAJOR MINOR R. SDR YAR PR0PERTY---TFST I NSTRUMENT-- -CONDITIONS

LI 43 1.714 1 . 632 -.481 # 745 2.61 30T FOLDING ENDURANCE, SCHOPPEK, TMI L339 * 1 .847 . 577 -1 . 390 • 195 1 . 32 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL F AN

LI 58 X 2.032 1 . 253 -.698 • 301 1.22 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L58-? X 2.052 1 . 766 -.222 . 491 . 96 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L232 X 2.096 2.0^9 .083 • 4.63 30N FOLDING ENDURANCE, MIT. NO CFNTRIFUGAL FAN

L 1 5 0 e 2.31 1 1 . 059 -.762 . 033 1 .20 30 M FOLDING ENDURANCE, MIT. WITH CENTRIFUGAL PAN L285B 0 2.313 1 .208 -.625 • 025 2.10 30 N FOLDING ENDURANCF, MIT, NO CENTRIFUGAL FAN

LI 9 OD 2.332 2.650 .701 . 594 . 7 0 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

L36 6A 0 2 .41 2 1. 595 -.231 • 093 1.19 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL PAN

1278 o 2.41 2 1.941 .085 • 233 1.32 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

L236 0 2.414 1 . 569 -.254 # 080 1 .04 30N FOLDING ENDURANCE, MIT, NO CFNTRIFUGAL FAN L326S 2 . 428 2.680 .766 . 519 1.03 30S FOLDING ENDURANCE, SCHOPPFR, LFIPZTG

L285A o 2.450 1 • 568 -.241 . 047 1.54 3 ON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L238P a 2.452 1.519 -.285 . 025 1.21 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HFATING

LI 63 a 2.469 1.955 . 1 21 • 187 .95 30N FOLDING FNDURANCF, MIT, NO CENTR I FUG AI FAN

L 39 0 0 2.471 1 . 494 -.299 • # 003 1.15 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L280 2.474 1.810 -.01 0 • 123 1.19 30 K FOLDING ENDURANCE, KOHLE R-MOL I

N

L3 2 6N « 2.478 2. 124 .279 • 247 .54 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 05 a 2.491 1.511 -.276 - • 014 .80 30M FOLDING ENDURANCE, MIT. WITH CENTRIFUGAL FAN

L 2 38 A a 2.505 1.580 -.207 • 001 1 . 30 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

LI 59 o 2.51 7 2.003 . 1 85 * 162 1 .01 30 N FOLDING ENDURANCE, MIT, NO CFNTRIFUGAL FAN

LI 24 o 2.533 1. 804 .009 • 0 67 .99 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L376 0 2.534 1.575 -.200 - • 027 1 .35 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L341 o 2.54 2 1.666 -.114 • 002 . 87 30C FOLDING FNDURANCF, MIT, CIRCULATING FAN IN CFILTNG

LI 9 OC 0 2.548 1.701 -.079 • Oil 1.17 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN L182S 2.557 2.591 .738 365 1.15 30 S FOLDING ENDURANCF, SCHOPPFR, LEIPZIG

L262 o 2.561 1.697 -.077 - . 002 .79 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L? 5 4 a 2.56 3 1. 764 -.015 • 023 1.10 30 M FOLDING ENDUPANCE, MIT, WITH CENTRIFUGAL FAN L366B 2.561 1 .726 -.043 - . 009 1 .47 30T FOLDING ENDURANCE. SCHOPPER, TMI

LI 76 a 2.599 2.046 .2 57 • 1 05 1 .04 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 62 a 2.599 1.690 -. 069 • # 040 1 .02 30 M FOLDING FNDURANCF

,

MIT. WITH CENTRIFUGAL FAN

L39 6 M a 2.6C3 2.026 .240 . 093 .71 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L29 9 o 2.608 1.614 -.134 - • 079 1.12 30N FOLDING ENDURANCE, MIT, NO CFNTRIFUGAL FAN

L2 3 0 a 2.609 1 . 735 -. 023 - . 031 .67 30N FOLDING ENDURANCE, MIT, NO CFNTRIFUGAL FAN

L21 2 a 2.638 1.751 .004 - • 051 .69 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN L388 a 2.651 1.677 -.059 • # 093 1.26 30 N FOLDING ENDURANCE. MIT, NO CFNTRIFUGAL FAN

LI 21 a 2.655 1. 748 .008 - . 068 .94 30M FOLDING ENDURANCF, MIT, WITH CENTRIFUGAL FAN

L58

1

2.658 2.745 .920 • 335 .68 30T FOLDING ENDURANCE, SCF0 PPER. TMI

LI 1 8 0 2.660 1.816 . 072 - • 044 .83 30 D FOLDING ENDURANCE, MIT, MODI F I FD DR T VE TO REDUCE HFATING

L22 3F a 2.672 1.813 . 074 • 057 .91 30 M FO LD I NG ENDURANCE. MIT, WITH CFNTRIFUGAL FAN L599 a 2.672 1.687 .142 • 027 .97 30C FOLDING ENDURANCF. MIT. CIRCULATING FAN IN CEILING

L 27 5 a 2.677 1.693 -.034 - . 110 1.18 30N FOLDING ENDURANCF. MIT, NO CENTRIFUGAL FAN

L2 4 3 a 2.700 2.007 .262 - . 004 .88 30 D FOLDING FNDURANCF. MIT, M«DIFIFD DR I VF T0 REDUCE HFATING

L565 a 2.704 2.095 .345 . 029 1.13 30N FOLDING ENDURANCE, MIT, NO CFNTRIFUGAL FAN

L3 7 9 a 2.708 l.e47 .119 - • 076 .95 30N FOLDING ENDURANCF. MIT. NO CENTRIFUGAL FAN

L2", 9 a 2.708 1 .890 .1 59 - # 058 .54 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN L396S # 2.715 2.924 1 .1 06 . 356 .52 3 OT FOLDING ENDURANCE, SCHOPPER, TMI

LI COM 0 2.721 2.006 .269 - . 023 . 60 30 M FOLDING ENDURANCE. MIT, WITH CENTRIFUGAL FAN

L5 6 7 a 2.721 1 . 872 . 1 47 - • 077 .63 30 N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

LI 8 5 a 2.802 2. 044 .337 - • 081 • 77 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 0 ON a 2.803 1. 764 .082 . # 196 • 69 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 82 M a 2.828 1.981 . 291 - . 131 . 60 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

LI 22 a 2.889 2. 179 . 496 - . 106 .99 30 M FOLDING ENDURANCF, MIT, WITH CENTRIFUGAL FAN

L3 21 ft 3.057 2.293 . 669 - • 214 .94 30 M FOLDING ENDURANCE, MIT, WITH CFNTRIFUGAL FAN OMFAN S

2.59 0 1.769 1 .00 95% ELLIPSE: .656 . 243 WITH GAMMA • 66 DEGREES

45
L0G(

10

)

FOLD

FOLDING ENDURRNCE ( NIT

)

SAMPLE H23 = 2.59 L0G(1O) FOLD SAMPLE H35 = 1.77 LOG(IO) FOLD

LOG(IO) FOLD

46
KEP0RT NO. £ 1 S TAPPI COLLABORATI VE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T3S-1 TABLE 1 GURLEY STIFFNESS

RESULTS EXPRESSED IN STANDARD GURLEY UNITS: MILLIGRAMS FOR A 113 INCH SPECIMEN (ACTUAL LENGTH 3.5 INCHES > SAMPLE PRINTING SAMPLE PRINTING TFST D. 1 0 LAB H70 102 GRAMS PER SQUARE METER H68 96 GRAMS PER SQUARE METER

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

LI 00 288. 36. 3.02 25. 1 . 80 430. -33. -1 .22 19. .80 35G X LI 00

LI 1 8 248. -4. -.32 11. • 82 458. -4 . -.16 23. .99 35C G LI 18

LI 2

1

248. -4. -.30 16. 1.17 498. 35. 1 .28 56. 2.37 35G 0 LI 21 LI 22 236. -15. -1 .26 10. .71 434. -29. -1 .05 13. .57 35G G LI 22

LI 32 242. -10. -.80 18. 1 . 31 480. 18. .64 32. 1 .35 35G 0 LI 32

LI 39 253. 1 . .10 11 . . 82 447. -16. -.57 23. 1 .00 35G 0 LI 39

LI 4 8 245. -6. -.51 11. . 76 459. -4 . -.15 22. .92 35G 0 LI 4 8

LI 53 255. 3. . 27 8. . 58 452. -11 . -.40 36 . 1 .53 350 G LI 53

LI 59 242. -9. -.77 14. 1 . 04 456. -6. -.24 41 . 1.73 35G G LI 59

LI 62 240. -12. -.96 16. 1 .15 41 9. -44 . -1 .62 19. .83 35G G LI 62

LI 63 259 . 7. .62 38. 2.72 466. 4 . . 1 3 31 . 1 . 30 35G G L 1 63

LI 83 270 . 18. 1 .53 11 . • 77 497. 34 . 1 . 24 *6. l .97 35G G LI 83 L190C 258. 6. .52 11 . .77 460. -3. -.10 10. .41 350 G LI 90C

LI 95 271 . 20. 1 . 66 7. • 54 486. 23. . 85 19. .81 35G G LI 95

L21 2 256. 5. . 41 17. 1 . 19 469. 6. .23 17. .71 3 50 G L21 2

L22 3 244 . -8. -.66 6. . 44 474. -29. -1.07 !5. .63 35G G L2 2 3 L224 269. 18. 1 .47 18. 1.27 498. 35. 1 . 28 17. . 73 350 G L224

L232 165. -87. -7.24 7. . 50 266. -197. -7.23 14. .61 35G ft L2 32 L236 240. -11. -.94 12. . 83 407. -56. -2.06 22. .51 35G G L~'36 L2 41 169. -83. -6.90 5. . 38 275. -188. -6 . 89 12. .49 350 tt L2 4

1

L249 244. -7. -.60 15. 1 . 08 453. -10. - • 37 17. • 74 350 G L249 L2£4 137. -115. -9.55 6. . 44 236. -227. -8.31 14, .60 350 * L254

L260 277. 25. 2.09 10. .76 509. 46. 1 .69 8. . 35 3 50 G L2 6C L285 1 82. -69. -5.76 9. .65 292. -171 . -6.27 19. .83 3 5G t* L2 85 L291 245. -6. -.54 14. 1 .01 460. -3. -.09 16. .68 35G G L291

L29 7 225. -26. -2.19 14. • 99 400. -63. -2.32 17. .71 35G G L297

L30 8 236. -15. -1 .25 13. .92 474. 1 1 . .40 19. .82 2 5G 0 L308

L32 1 245. -6. - . 50 18. 1.33 447. -16. -.59 26. 1 . 09 3 5G 0 L321 L356 245. -6. -.54 11 . • 79 456. -7. -.26 30. 1 . 27 35G 0 L? 5 6 L37 6 269. 17. 1 .42 17. 1.21 515. 52. 1 .90 9. .38 35G G L3 L378 247. -4. -.34 10. .74 468. 5. .19 24. 1 .01 35G 0 L370

L382 268. 16. 1 .37 11 • . 80 500. 37. 1 .36 34. 1.44 3 5G 0 1-382 L39 0 260. 8. .70 34. 2.43 455. -8. -.30 24. 1 • 04 35G 0 L390

L396 261 . 10. .82 12. • 87 448. -15. -.54 18. .75 35G 0 L396

L567 260. 8. .70 12. . 88 490. 27. .98 26. 1.10 35G 0 L567

L571 248. -3. -.25 20. 1 .45 468. 5. .18 49. 2 . 09 36G 0 L571 L575 242. -10. -.80 5. . 34 446. -17. -.61 13. .55 35G 0 l 575

L60 0 250. -2. -.15 7. . 50 467. 4 . .15 15. .64 35G 0 L6 00

GR. MEAN • 252. GURLEY UNITS GRAND MEAN - 463. GURLFY UNITS TF ST DETERMINATIONS - 10 SD MEANS - 12. GURLEY UNITS SD 0F MEANS - 27. GURLEY UNITS 33 LABS IN GRAND MEANS

AVERAGE SDR - 14. GURLEY UNITS AVERAGE SDR - 24. GURLEY UNITS

L21 3 248. -3. -.28 18. 1.30 471. 8. .30 31 . 1 . 33 35R L?1 ? TOTAL NUMBER OF LABORATORIES REPORTING 39

Best Values: H70 250 + 20 Gurley units

H68 450 + 45 Gurley units

Data from the following laboratories appear to be

off by a multiplicative factor, or may have been

tested in the wrong direction: 232, 241, 254,

285.

47
REPORT NO. 51

S

TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T 35- 1 TABLE 2 GURLEY STIFFNFSS RESULTS EXPRESSED IN STANDARD GURLEY UNITS: MILLIGRAMS FOR A 1X3 INCH SPECIMEN (ACTUAL LENGTH

LAB CODE F MEANS

H70 H68 COORDINATES

MAJOR MINOR

AVO

R. SDR VAR PROPERTY----TEST INSTRUMENT- --CONDITIONS

L25 A '* 1 37. 236. -252 • 32. .52 35G STIFFNESS, GURLEY < UNITS

;

MG/1X3 -ACTUALLY 3,5 L232 * 165. 266. -215. 16. .56 35G STIFFNESS, GURLEY < UNITS

MC/1 X3 -ACTUALLY 3.5

L2 A 1 tt 169. 2^5. -205. 15. • 44 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5 L285 * 1 82. 292. -184. 8 . .74 35G STIFFNESS, GURLEY < UNITS; MG/1X3 -ACTUALLY 3.5 L297 O 225. 400. - 68 . 4. .85 35G STIFFNESS, GURLEY « UNITS

MG/1X3 -ACTUAL LY 3.5

LI 2 2 o 236. A 3 A . -32. 5. .64 35G STIFFNFSS, GURLEY < UNITS: MG/1 X3 -ACTUALLY 3.5

L3 0 8 fl 236. 474. 5. 18. .87 35G STIFFNESS, GURLEY < UNITS: MC/1 X3 -ACTUAL LY 3.5

LI 62 0 2 A 0 • 419. -46. -4. .99 35G STIFFNFSS, GURLEY ( UNITS: MG/1 X3 -ACTUALLY 3.5 L236 0 2 AO . 407. -57. - 8 . .67 35G STIFFNESS, GURLEY < UNITS: MG/1 X3 -ACTUALLY 3.5 L575 o 2A2. 446. -19. 3. • 44 35G STIFFNESS, GURLFY < UNITS: MG/1 X3 -ACTUALLY 3.5

LI 3

2

0 2A2. 480. 13. 15. 1 .33 35G STIFFNFSS, GURLEY < UNITS

MG/1 X3 -ACTUALLY 3.5

LI 59 o 242. 456. -9. 7. 1 .38 35G STIFFNESS, GURLEY < UNITS

MG/1X3 -ACTUALLY 3.5

L22 3 0 2A4 . 4 34. -30. - 2 . .53 35 G STIFFNESS, GURLEY ( UNITS

MG/1 X3 -ACTUALLY 3.5 L2A9 fl 244. 453. - 12 . 3. .91 35G STIFFNESS, GURLEY < UNITS: MG/1X3 -ACTUALLY 3.5 L356 0 245. 456. -9. 4 . 1 .03 35G STIFFNFSS, GURLFY < UNITS: MG/1X3 -ACTUALLY 3.5

L291 o 245. 460. -5. 5. .85 35G STIFFNESS, GURLEY < UNITS: MG/1 X3 -ACTUALLY 7.5

LI 48 fl 245. 459. - 6 . 4. .84 35G STIFFNESS, GURLFY < UNITS: MG/1 X3 -ACTUALLY 3.5

L321 fl 245. 447. -17. 0 . 1.21 35G STIFFNESS, GURLEY c UNITS: MG/1 X3 -ACTUALLY 3.5

L37 8 0 247. 468. 3. 6 . .88 35G STIFFNESS, GUkLEY c UNITS: MG/1 X3 -ACTUALLY *.5

LI 1 8 fl 248. 458. - 6 . 2 . .90 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5

LI 21 0 248. 498. 32. 15. 1 .77 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5

L21 3 248. 471 . 7. 6 . 1 .32 35H STIFFNESS, GURLEY ( UNITSMG/1 X? TEST PIECE),

L5 7 l 0 248. 468. 4. 5. 1 .77 35G STIFFNESS. GURLEY < UNITS: MG/1X3 -ACTUALLY 3.5

L6 0 0 fl 250. 467. 3. 3. .57 35G STIFFNESS, GURLFY ( UNITS

MG/1X3 -ACTUALLY 3.5

LI 39 fl 253. 447. -14. - 6 . .91 35 G STIFFNESS, GURLEY c UNITS

MG/1X3 -ACTUALLY 3.5

LI 53 0 255. 452. -9. -7. 1 . 05 35G STIFFNESS, GURLEY ( UNITS: MG/1 X3 -ACTUALLY 3.5

L21 2 0 256. 469. 6. - 2 . .95 35G STIFFNESS. GURLEY ( UNITS: MG/1 X? -ACTUALLY 3.5

LI 90C e 258. 460. - 0 . -7. .59 35G STIFFNESS, GURLFY ( UNITS: MG/1 T3 -ACTUALLY 3.5

LI 63 o 259 . 466. 6 . - 6 . 2.01 35G STIFFNESS, GURLEY ( UNITS: MG/1 X3 - ACTUALLY 3.5 L567 0 260. 490. 28. 1 . .99 35G STIFFNESS, GURLFY c UNITS: MG/1 X3 -ACTUALLY 3.5 L390 o 260. 455. -5. -1 1 . 1 .73 35G STIFFNESS. GURLEY ( UNITS : MG/1 X3 -ACTUALLY 3.5 L396 o 261 . 448 . -1 1 . -14. .81 35G STIFFNESS, GURLEY ( UNITS : MG/1 X 3 -ACTUALLY 3.5 L382 o 268. 500. 40. -3. 1.12 35G STIFFNESS, GURLFY ( UNITS : MG/1X3 -ACTUALLY 3.5

L37 6 0 269. 515. 54. 1 • .79 35 G STIFFNESS, GURLEY ( UNITS

MG/1 X3 - ACTUAL LY 3.5

L22 A 0 269. 498. 39. -5. 1 .00 35G STIFFNESS, GURLEY ( UNITS : MC/1 X 3 -ACTUALLY 3.5

LI 83 fl 270. 497. 38. -6 . 1.37 350 STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5

LI 9 5 0 271 . 486. 28. - 11 . • 67 35G STIFFNESS, GURLEY ( UNITS: MC/1 X3 -ACTUALLY 3 .5 L2 6 0 fl 277. 509. 52. - 8 . .55 350 STIFFNFSS, GURLEY < UNITS: MG/1 X3 -ACTUALLY 3.5

LI 0 0 X 288. 430. -19. -45. 1.30 35G STIFFNFSS, GURLEY < UNITS: MG/1 X3 -ACTUALLY 3.5 GMEANS: 252. 95%

463. FLLIPSE: 75. 20. 1.00 WITH GAMMA • 70 DHGRFES

? . 5 INCHES)

- TEST PIECE)

- TEST PIECE)

- TEST PTECF)

- TEST PIFCE)

- TFST PIECE)

- TEST PIFCE ) - TEST PIECE)

- TFST PIECE)

- TFST PIECE)

- TEST PIECE)

- TEST PIFCF)

- TEST PIFCE ) - TFST PIFCF)

- TEST PTFCF)

- TFST PIECE)

- TEST PIECF ) - TEST PIECE)

- TEST PIECE)

- TEST PIFCF)

- TFST PIFCE)

- TFST PIECE)

20 C. 65% RH

- TEST PTECF)

- TEST PIFCF)

- TFST PIECF)

- T^ST PTFCP)

- TFST PIECF)

- TTST PIFCF)

- TEST PIECE)

- TE ST PT CCF )

- TEST PIFCF)

- TEST P I ECF

)

- TEST PIFCF)

- TFST PIECF)

- TEST PTECE)

- TFST PIFCF)

- TFST PTFCF)

- TEST PIFCF)

- TEST PIFCF)

48
GURLEY

UNITS

380

400

420

440

460

480

500

520

540

STIFFNESS . GURLEY

SAMPLE H70 = 252. GURLEY UNITS SAMPLE H68 = 463. GURLEY UNITS

GURLEY UNITS

49
REPORT NO. 51S TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS T36-1 TABLE 1 TABER STIFFNESS

TAPPI STANDARD T489 OS-76, RESULTS EXPRESSED IN GRAM CENTIMETFRS

JANUARY 19'8

SAMPLE PRINTING SAMPLE KRAFT ENVELOPE TF ST D. • ! 0 LAB J 09 149 GRAMS PER SQUARE METER B63 124 GRAMS PER iSQUARE METER

C0DH MEAN DEV N . DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI 07A 16.90 -.42 -.38 .88 . 99 19.00 -.00 -.00 .94 1.14 36T 0 l 1 07 A LI 23 16.70 -.62 -.56 .67 . 76 18.20 -.80 -.80 • 42 . 51 36T 0 LI 23

LI 26 16.20 -1.12 1 . 01 • 48 . 54 17.95 -1.05 -1.05 • 44 .53 36T 0 LI 26

LI 49 18.20 • 88 .79 .79 . 89 19.80 . 80 .80 .63 . 76 36T 0 LI ^9

LI 50 18.60 1.28 1.15 .61 .69 20.10 1 .1 0 1.10 .74 . 89 36 T 0 1.1 50

L 1 58 17.50 .18 • 16 .00 . 00 17.95 -1.05 -1.05 1.14 1 . 38 36T 0 LI 58

LI 63 17.30 -.02 -.02 .87 .98 19.72 .72 .72 .42 .50 36T 0 LI 63

LI 73B 17.02 -.30 -.27 .53 .60 19.25 .25 .25 • 41 .50 36T 0 LI ’’3B LI 7 6 19.30 1 .98 1.78 1 .48 1.66 20.20 l . 20 1 .20 1.30 1 • 5 7 36T 0 LI 76

LI 82 16.69 -.63 -.57 .52 . 58 18.31 -.69 -.69 .50 .61 36T 0 LI 82 L207 16.58 -.74 -.67 1 . 48 1. 67 19.57 .57 .57 1 .07 1 .29 36 T 0 L2 07 L21 2 19.10 1.78 1.60 .91 1. 02 20.95 1 .95 1 .95 .98 1.19 36T 0 L? 1 Z L22 8 17.70 .38 .34 .67 .76 19.90 .90 .90 .57 .69 36T 0 L2P8

L24 2 16.97 -.35 -.32 .83 .93 18.9' -.03 -.03 .92 1.11 36 T 0 1.242 L243 16.45 -.87 -.79 .93 1 . 04 18.70 -.30 -.30 .75 .91 36T 0 L243

L2 6 0 18.07 .75 .67 .62 .70 19.28 .28 .28 .68 . 83 36T 0 L260

L262 17.70 .38 .34 .63 .71 19.05 .05 .05 .44 .53 36T 0 Let? L273 16.30 -1.02 -.92 .67 .76 17.75 -1 .25 -1 .25 1.06 1.28 36T 0 L2 7? L281 18.30 .98 . 88 .84 . 95 19.1' .17 .17 .41 .49 36T 0 I2B1

L31 8 16.32 -1.00 -.90 .73 . 82 18. 45 -.55 -.55 .66 • 80 36T 0 L31 8

L321 14.86 -2.46 2.22 I .27 1 . 43 17.19 -1.81 -1.81 .67 • 81 36T 0 L321 L324 16.78 -.54 -.49 .82 .92 18.82 -.18 -.18 .50 .60 36T Cl L324 L339 16.25 -1.07 -.97 1 .95 2.19 17.25 -1.75 -1.75 2.15 2.59 36T 0 L7-»c L4 4 2 19.47 2.15 1.94 2.21 2.49 20.84 1.84 1.84 2.04 2.46 36T 0 T.4 4? L570 19.50 2.18 1.96 1.18 1 . 33 23.20 4.20 4.19 2.82 3.41 36T T LF^C L580 17.85 .53 • 47 .78 . 88 18.65 -.35 -.35 .85 1 .03 36T 0 1.5 80

GR. MEAN - 17.32 TABER UNITS GRAND MEAN o o O TABFR UNITS TEST DETERMINATIONS • 1 0 SD MEANS • 1.11 TABER UNITS SD 0F MEANS • 1 . 00 TABFP UNITS 25 LABS TN GRAND MEANS AVERAGE SDR - .89 TABER UNITS AVERAGE SDR • .8? TABFR UNITS

TOTAL NUMBER OF LABORATORIES REPORTING - 26

Best Values: J09 17.1 + 2.0 Taber units

B63 18.7 + 1.5 Taber units

50
REPORT NO. 51 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T36-1 TABLE 2 TABER STIFFNESS

TAPPI STANDARD T489 OS-76, RESULTS EXPRESSED IN GRAM CENTIMETERS

LAB MEANS COORDINATES AVG

CODE F J 09 B63 MAJOR MINOR R. SDR VAR PROPERTY-- -TF ST I NSTRUMENT- --CONDI TIONS

L321 0 14.86 17.19 -3. 05 .28 1.12 36T STIFFNESS

,

TABER

LI 2 6 0 16.20 17.95 -1 . 54 -.04 . 54 36T STIFFNESS, TABER

L339 0 16.25 17.25 -1.97 -.60 2.39 36T STIFFNESS, TABER

L273 0 16.30 17.75 -1.60 -.26 1.02 36T STIFFNESS, TABER

L31 8 0 16.32 1 8. 45 -1.11 . 25 . 81 36T STIFFNESS, TABER

L24 3 0 16.45 1 8. 70 -.85 .35 .98 36 T STIFFNESS, TABF R L207 0 16.58 19.57 -.18 .92 1.48 36T STIFFNESS, TABER

LI 8 2 0 16.69 18. 3‘1 -.93 -. 10 . 59 36T STIFFNESS, TABER

LI 2 3 0 16. -"0 1 8. 20 -1 . 00 -. 19 . 64 36T STIFFNESS, TABER

L324 0 16.78 18.82 -.53 .23 .76 36T STIFFNESS, TABER

LI 0 7A 0 16.90 19 .00 -.32 .28 1 .06 36 T STIFFNESS, TABER

L242 0 16.97 18.97 -. 29 .21 1.02 36T STIFFNESS, TABER

L173B 0 17.02 19.25 -. 06 . 39 . 55 36T STIFFNESS, TABER

LI 63 o 17.30 19.72 .46 . 56 .74 36T STIFFNESS, TA3ER

LI 5 8 0 17.50 17.95 -.57 -.90 • 69 36T STIFFNESS, TABER

L2 6 2 0 17.70 19.05 .31 -.21 .62 36 T STIFFNESS, TABER

L2 2 8 0 17.70 19.90 . 88 .42 .72 36T STIFFNESS, TABER

L5 8 0 0 17. es 1 8. 65 .16 -.61 .96 36T STIFFNESS, TABF R L26 0 0 18.07 19.28 • 74 -.29 .76 36T STIFFNESS. TABER

LI 49 0 18.20 19. 80 1.18 . 02 .83 36T STIFFNESS, TABER

L281 0 18.30 19.17 . 85 -.52 .72 36T STIFFNESS, TABER

LI 5 0 0 18.60 20.10 1 . 68 - . 02 .79 36T STIFFNESS, TABER

L21 2 0 19.10 20.95 2.62 . 28 1.11 36T STIFFNESS, TABER

LI 76 0 19.30 20.20 2.27 -.41 1.61 36T STIFFNESS, TABER

L442 0 19.47 20.84 2. 83 -.05 2.48 36T STIFFNESS, TABER

L570 X 19.50 23.20 4.41 1.70 2.37 36T STIFFNESS, TABER

GMEANS17.32 19.00 1.00 95% ELLIPSE: 3.83 1.12 WITH GAMMA - 41 DEGREES

51
TABER

UNITS

STIFFNESS, TABER

13 1 4 15 16 17 18 19 20 21 22

TABER UNITS

52
REPORT NO. 5 1 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1976 ANALYSIS T49-1 TABLE 1 SURFACE PICK STRENGTH, IGT

SAVPLF PRINTING SAMPLE PRINTING TEST D. 4 LAB H 1 7 89 GRAMS PER SQUARE METER H80 64 GRAMS PER SQUARE METER

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

LI 07 23. 7 -3.4 -.38 7.1 3. 03 77.0 15.4 .62 . 0 . 00 491 0 LI 07

LI 2

1

26.2 -1 .

0

-.11 . 5 . 23 39.0 -22.6 -.92 2.9 .73 49 F 0 LI 21

LI 22 22.7 -4.4 -.50 .8 . 34 64.4 2.7 • 11 1.5 . 39 49Q 0 LI 22

LI 49 27. 8 . 7 • 07 1 . 8 • 78 89.6 27.9 1.13 6.6 1 .67 49L o LI 49

LI 821 1 4. 7 -12.5 -1.41 .3 .12 23.1 -38.6 1 .56 1 .

4

. 34 49Q 0 LI 82 I

LI 83 21.6 -5.5 -.62 • 5 .21 NO DATA REPORTED FOR SAMPLE H80 49Q M LI 83

LI 9 0C 28. 7 1 .

6

.18 2.5 1. 07 59.0 -2.6 -.11 3. 6 .90 49T 0 L190C

L207 25.7 -1.4 -.16 1.7 . 73 85.2 23.6 .96 4.2 1 . 06 491 fS L2C7

L2 42 18. 1 -9. 1 -1 . 03 1.5 • 62 57.1 -4.5 -.18 4. 8 1 .20 49 P 0 L242 L277 82.6 55.5 6.28 4.9 2. 09 166.5 1 04.9 4.25 6. 0 1 .52 491 ft L2 77

L280 1 .

2

-26.0 -2.94 .0 . 01 3.6 -58.0 2.35 . 2 .04 49U ft L2 80 L29 1 25. 1 -2.1 -.23 3.1 1 . 34 66.2 4. 6 .19 2. 2 .55 49 T 0 L291 L337 40.7 13.5 1 .53 2.8 1.19 23.6 -38.0 1 .54 1 .

0

.26 49F 0 L337

L38 2 34. 8 7.7 .87 1.6 . 68 NO DATA REPORTED FOR SAMPLE H80 491 M L382

L38 8 45.0 17.9 2.02 3.6 1.54 93.6 32.0 1 .30 1 5. 6 3.91 49Q 0 L388

L600 21.8 -5.3 - .60 • 8 . 32 NO DATA REPORTED FOR SAMPLE H80 491 M L600

GR. MEAN • 27. 1 KP CM/SEC GRAND MEAN • 61.6 KP CM/SEC TEST DETERMINATIONS - 4 SD MEANS 00 CO KP CM/SEC SD OF MEANS • 24.7 KP CM/SEC 1 1 LABS IN GRAND MEANS

AVERAGE SDR - 2. 3 KP CM/SEC AVERAGE SDR - 4.0 KP CM/SEC

TOTAL NUMBER OF LABORATORIES REPORTING - 16

The following laboratories were omitted from the grand means because of extreme test results: 277.

Data from the following laboratories were not included

in the grand means because no viscosity information

was given: 280.

53
KP

CM/SEC

SURFACE PICK STRENGTH , I GT

SAMPLE H 1 7 = 27 KP CM/SEC

I SAMPLE H80 = 62. KP CM/SEC

I

o

CD

O

CD

CnJ

CD

CD

CD

00

O

CD

O-'3'

o

C\J

O

CD

JZ

LU

_J

Q_

2=

CT

CD

+ . X . « IJ0T IN GRAND MEANS

ANALYS : S T49-1

O

O

©

.©

'D ©

©

©

© ©

SAMPLE H 17

0 20 40 60 80 100

KP CM/SEC

120 140 160

54
REPORT NO. 5 1 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1576 ANALYSIS TSO-1 TABLE 1 SURFACE PICK STRENGTH. WAX NUMBER

TAPPI STANDARD T459 0S-7S, SURFACE STRENGTH OF PAPER (WAX PICK TEST)

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 5 LAB HI 7 e9 GRAMS PER SQUARE METER H0O 84 GRAMS PER SQUARE METER

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

LI 05 6.20 • 23 .21 .45 1 . 09 10.60 -.78 -.86 .55 1.10 5 OW 0 LI 05

LI 22 4.20 -1.77 1 .61 .45 1 . 09 10.00 -1.38 1.52 .71 1 .42 50W 0 LI 22

LI 58 6.20 .23 .21 .45 1 . 09 11.00 -. 38 -.42 .71 1 .42 50W 0 LI 58

LI 62 6.00 .03 • 03 .00 . 00 12.60 1.22 1.35 .55 1.10 50W 0 LI 62

LI 7 3 A 5.00 -•97 -.88 .00 . 00 11.00 -.38 -.42 .00 . 00 50W a LI 73 A

LI 02

W

6.00 .03 .03 .00 . 00 10.80 -.58 -.64 .45 .90 SOW 0 LI 82W

LI 83 5.80 -.17 -.15 .45 1 . 09 12.00 .62 .68 .00 . 00 50W 0 LI 8?

LI 95 6.20 .23 • 21 .45 1 . 09 11.00 -.30 -.42 .00 . 00 SOW 0 LI 95

L21 3 6.20 .23 .21 .45 1 . 09 11.20 -. 1 0 -.20 .45 .90 50W 0 L213 L225 7.60 1 . 63 1 .40 .55 1 . 33 13.00 1.62 1.79 .00 . 00 50W 0 L225

L22 8 4.40 -1.57 1 .43 .55 1.33 9.80 -1.58 1.^4 1.10 2.21 5 OW 0 L22 8 L230 5.80 -.1 7 -.15 .45 1 . 09 10.40 -.98 1 . 08 .89 1 . 80 sow 0 L230 L236 5.60 -.37 -.34 .55 1.33 12.00 .62 .68 1 .00 2.01 50W 0 1236

L243 5 .80 -.1 7 -.15 .45 1.09 8.60 -2.78 3.07 .55 1.10 5 OW ft L243

L285 7.80 1 . 83 1.67 .45 1 . 09 12.00 .62 • 68 .00 . 00 5 OW 0 L2 85

L33 9 8.20 2.23 2.03 .45 1.09 13.20 1.82 2.01 .45 . 90 50 W 0 L339 L366 6.40 . 43 .39 .55 1.33 11.20 -.18 -.20 .45 .90 50 W 0 L366

L37 8 5.80 -.17 -.15 .45 1 . 09 11.40 .02 .02 .55 1.10 SOW 0 L3 78 L390 5.00 -.97 -.08 .00 . 00 11.00 .42 .46 .45 .90 50W 0 L390

L56

1

6.80 . 83 .76 1.10 2. 67 11.20 -.18 -.20 1.10 2.21 SOW 0 L561 L567 4.20 -1.77 1.61 . 45 1 .09 11.40 .02 o CJ .55 1.10 SOW 0 LS 67

GR. MEAN - 5.97 WAX NUMBER GRAND MEAN - 1 1 .38 WAX NUMBER TEST DETERMINATIONS - 5 SD MEANS “ 1.10 WAX NUMBER SD 0F MEANS - .91 WAX NUMBER 20 LABS IN GRAND MEANS

AVERAGE SDR - .41 WAX NUMBER AVERAGF SDR • .50 WAX NUMBER TOTAL NUMBER OF LABORATORIES REPORTING - 21

Best Values: H17 6.0 + 1.8 wax number

H80 11.2 + 1.5 wax number

The following laboratories were omitted from the grand means because of extreme test results: 243.

55
REPORT NO. 51S TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T50-1 TABLE 2 SURFACE PICK STRENGTH, WAX NUMBER

TAPPI STANDARD T459 OS- 75. SURFACE STRENGTH OF PAPER (WAX PICK TEST)

LAB CODE F MEANS

HI 7 H80 COORDINATES

MAJOR MINOR

AVG

R. SDR VAR PROPERTY--- TEST I NSTRUME NT ---CONDI TT ONS

L567 0 4.20 11.40 -1.41 1.07 1.10 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T459 9S7S ) LI 2 2 0 4.20 10.00 -2. 24 -.06 1.26 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 8S7S ) L2 2 8 0 4.40 9.80 -2.20 - . 34 1.77 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S75 > L39 0 0 5.00 11.80 -. 53 .91 .45 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 6S7S ) LI 73 A 0 5.00 11 .00 -1. 01 .27 . 00 50 W SURFACE PICK STRENGTH, WAX ( TAPPI TA59 0S75 ) L236 O 5.60 12.00 .07 .72 1.67 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S75 ) L3 7 8 0 5.80 11.40 -.12 • 12 1.10 SOW SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 6S75 ) 1183 0 5.80 12.00 .23 .60 . 55 50W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 6S75 ) L2 4 7 0 5.80 8. 60 -1.79 -2.13 1.10 50W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S7S > L230 0 5.80 10.40 -.72 -.69 1.45 SOW SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S75 »

LI 62 0 6.00 12.60 .75 .96 .55 50W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S7? ) LI 82

W

a 6.00 10.80 -. 32 -.48 .45 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S75 ) LI 05 o 6.20 10.60 -.28 -.76 1.10 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S7S » LI 58 0 6.20 11.00 -. 04 - .44 1.26 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 'JS-'S ) L21 3 o 6.20 11.20 . 08 -.28 1 .00 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 «S75 )

LI 95 0 6.20 11.00 -.04 -.44 .55 SOW SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S75 ) L366 0 6.40 11.20 .24 -.40 1.12 50W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S75 ) L561 0 6.80 11.20 . 56 -.64 2.44 SOW SURFACE PICK STRENGTH, WAX ( TAPP T T459 as-'?

)

L22 5 0 7.60 13.00 2. 27 .33 . 67 SOW SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 0S75 > L285 o 7.80 12.00 1.84 -.59 . 55 50W SURFACE PICK STRENGTH, WAX < TAPPI T4 59 0S75 ) L339 0 8.20 13.20 2. 88 .14 1 • 00 sow SURFACE PICK STRENGTH, WAX ( TAPPI T459 0S7S) GMEANS: 5.97

95 % : 11.38

ELLIPSE: 3.54 1.64

1.00 WITH GAMMA • 36 1DEGREES

JANUARY !9"*8

56
WAX

NUMBER

SURFACE PICK STRENGTH, WAX

SAMPLE H 1 7 = 6.0 WAX NUMBER SAMPLE H80 = 11.4 WAX NUMBER

WAX NUMBER

57
REPORT N0 # 51S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1970 ANALYSIS T91-1 TABLE 1 CONCORA (CORRUGATING MEDIUM TEST-CMT ) TAPPI STANDARD T809 OS-71 SAMPLE LINERBOARD SAMPLE LINERB0ARD TEST D. 1 0 LAB E62 127 GRAMS PER SQUARE METER E55 125 GRAMS PER :SQUARE METER

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

LI 00 238. 12. .82 18. 1 . 24 1 94. 17. 1.16 12. 1.01 9 1 F O LI 00

LI 76 224. -2. -.13 16. 1 . 08 171 . -6. -.38 13. 1.11 911 e LI “>6 LI 82 231 . 5. . 32 10. . 66 173. -3. -.23 12. 1.02 9 1 T 6 LI 82

LI 05 231 . 5. . 35 16. 1 . 09 1 9a. 17. 1.18 11. .93 91 A 6 LI 85 L21 8 203. -23. -1 . 51 12. . 82 158. -19. -1 .31 10. .81 91 I fl L21 8 L242 214. -1 1 . -.75 10. . 65 178. 2. . 1 1 11. .89 9 1 G O L2A2 L248 169. -56. -3.74 7. . 49 220. 43. 2.96 14. 1.16 9 1 B * L2 48 L255 200. -26. -1.73 37. 2. 55 156. -21 . -1 .41 23. 1.93 91 I 0 L255

L269 217. -9. -.61 13. .91 166. -11 . -.75 10. .79 911 0 L269

L289 235. 9. .60 14. . 98 185. 9. .59 13. 1.10 911 0 L2 89 L329 238. 13. . 84 9. .64 189. 12. .83 13. 1.11 911 0 L329

L33 6 252. 26. 1.74 15. 1 • 02 197. 20. 1.35 14. 1.13 911 0 L336

L394 229. 3. .19 8. . 52 175. -2. -.14 4. . 30 9 1 R 0 L39 A L4 84 211 . -14. -.96 19. 1.29 158. -19. -1.32 9. .77 91 H 0 L4 8A L575 245. 19. 1.28 11. .73 194. 17. 1 .19 14. 1.13 9 1 H 0 L575 L666 219. -7. -.46 12. • 82 164. -13. -.87 12. .97 9 1 S o L666

GR. MEAN • 226. NEWTONS GRAND MEAN - 177. NEWTONS TEST DETERMINATIONS • 10

SD MEANS • 15. NEWTONS SD OF MEANS • 15. NEWTONS 15 LABS IN GRAND MEANS AVERAGE SDR - 15. NEWTONS AVERAGE SDR • 12. NEWTONS

GR. MEAN - 50.75 P0UNDS GRAND MEAN - 39.76 POUNDS TOTAL NUMBER OF LABORATORIES REPORTING - 16

Best Values: E62 230 + 20 newtons

E55 180 + 22 newtons

The following laboratories appear to have inter- changed samples: 248.

REPORT NO. 5 1

S

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T91-1 TABLE 2 CONCORA (CORRUGATING MEDIUM TEST-CMT)

TAPPI STANDARD T809 OS-71

JANUARY 1978

LAB MEANS COORDINATES AVG CODE F E62 E55 MAJOR MINOR R. SDR VAR PROPERTY- --TEST I NSTRUMENT- --CONDITIONS

L2A8 * 169. 220. -1 0. 70. .82 91 B FLAT CRUSH STRFNGTH , CfNCORA. INSTRON

L255 0 200. 1 56. -33. 3. 2.24 91 I FLAT CRUSH STRENGTH, CONCORA, F*D

L21 8 0 203. 1 58. -30. 2. .81 91 I FLAT CRUSH STRENGTH, CONCORA, H* D L484 0 21 1 • 1 58. -24. -4. 1 .03 91 H FLAT CRUSH STRENGTH, CONCORA, H^D

L242 0 214. 170. -7. 9. .77 91 G FLAT CRUSH STRENGTH, CONCORA, GAYDON FLAT

L269 o 217. 166. -14. -1 . .85 91 I FLAT CRUSH STRENGTH, CONCORA, H*D

L66 6 0 219. 164. -14. -4. .89 91 S FLAT CRUSH STRENGTH, CONCORA, TOYO SEIKI ( LI 76 0 224. 171 . -5. -3. 1 .09 91 I FLAT CRUSH STRENGTH, CONCORA, H*D

L394 0 229. 175. 1 • -3. .41 91 R FLAT CRUSH STRENGTH. CONCORA, TMI

LI 82 0 231 . 173. 1 • -6. . 84 91 T FLAT CRUSH STRENGTH, CONCORA. TMI

LI 85 0 231 . 194 . 1 6. 9. 1.01 91 A FLAT CRUSH STRENGTH. CONCORA, INSTRON

L289 o 235. 185. 13. -0. 1 .04 91 I FLAT CRUSH STRENGTH, CONCORA. H*D

LI 0 0 o 238. 1 94. 21 . 4. 1.13 91 H FLAT CRUSH STRENGTH. CONCORA, H»D L329 0 2 38. 1 89. 1 8 . -0. .87 91 I FLAT CRUSH STRENGTH. CONCORA. H* D L57 5 0 245. 194. 26. -1 . .93 91 H FLAT CRUSH STRENGTH, CONCORA. H*D L336 o 252. 1 97. 33. -4. 1 .08 91 I FLAT CRUSH STRENGTH, CONCORA, H D

CMF ANS: 226. 177. 1 . 00 95% ELLIPSE: 59. 1 3. WITH GAMMA • 44 DEGREES

58
C0NC0R A (CMT)

SAMPLE E62 = 226. NEWTONS

SAMPLE E62 = 50-8 POUNDS

SAMPLE E55 = 177. NEWTONS

SAMPLE E55 = 39.8 POUNDS

CD

LD

OO

CD . M"

•M"

CM.

M"O . CO ^

CD

CD

Q_

oooo

to

oo

oo

CMOOo

oo

ooCM

COZ

CD

I—

LU

o

CM

CMo

CMOO

CMO

cn

o

oo

o

r~

CD

CDo

LDU5 + , X . # N0T IN GRAND MEANS

LD

- LU ANALYSIS T9 1 - 1 LU

_J

Q_

z:cr

CO

©

0 0 0

- ©

O

o

©

©

©

©

i 0 G

i

— ©

1 1 1 1 1 SAMPLE E621 1 1 II

170 180 190 200 210 220 230 240 250 260 270 280

NENT0NS

40 42 44 46 48 50 52 54 56 58 60 62

POUNDS

59
REPORT NO . 51 S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T96-1 TABLE 1 RING CRUSH (COMPRESSION RESISTANCE OF PAPERBOARD)

TAPPI STANDARD T472 SU-68

SAMPLE L I NERBOARD SAMPLE LINERBOARD TFST D. 1 0 LAB E62 127 GRAMSi PER iSQUARE METER E55 125 GRAMS PER SQUARE METER CODE MEAN DEV N.DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI 00 216. 14. .44 28. 1.70 220. 25. .91 24. 1.37 96fl 0 LI 00

LI 07 123. -79. -2.43 20. 1.19 150. -45. -1 .60 18. 1 .07 96P 0 LI 07

LI 1 A 210. 8. • 26 14. . 86 21 0. 15. .53 21 . 1 .21 96 P 0 LI 14

LI 2 2 153. -49. -1 . 51 18. 1.11 135. -60. -2.14 23. 1 .36 96P 0 LI 22

LI 24 201 . -1 . -.02 21 • 1.29 171 . -24. -.85 22. 1 .25 96P O LI 24

LI 26 216. 14. .44 13. .77 210. 15. .54 15. .88 96P 0 LI 26

LI 2 7 231 . 30. .92 11. . 69 181. -14. -.51 12. .72 96 P » LI 27

LI 41 232. 30. .94 22. 1.35 208. 13. .48 18. 1 . 06 96P 0 LI AJ LI 57 202. 0. .01 11 . .64 1 89. -6. -.20 18. 1 . 05 96P 6 LI 67

LI 71 198. -3. -.11 27. 1.64 209. 14. .51 18. 1 . 06 96H o 1.1 71

LI 7 6 155. -46. -1 .43 32. 1.94 164. -31 . -1.09 18. 1 • 04 96 P 0 LI 76

LI 82 2 52. 50. 1.55 6. .38 234. 39. 1.39 11 • .62 96H o LI 82

LI 9

1

1 85. -17. -.52 30. 1. 80 1 89. -6. -.22 28. 1 .62 96 P fl LI 91 L2 4 2 235. 34. 1.05 12. • 74 236. 42. 1 .49 12. .70 96G o L242

L303 219. 17. . 54 10. .59 207. 12. • 44 15. .97 96R 0 L30? L305 984. 782. 24.16 37. 2.28 884. 689. 24.62 26. 1 .50 96P * L305

L3 0 7 173. -28. -.87 13. .79 174. -21 . -.74 10. .58 96P 0 L307

L32 9 190. -12. -.36 13. . 78 1 87. -8. -.28 14. .81 96P 0 L329 L336 173. -28. -.87 8. • 47 181. -13. -.48 14. • 84 96P 0 L336

L3 5 0 228. 26. • 81 12. .72 220. 25. .89 17. .97 96P 0 l 350 L393 216. 1 5. .45 8. . 46 206. 11. • 40 11 . .67 96P 0 L3 C3 L4 84 147. -54. -1.68 15. .93 145. -50. -1 .77 21 • 1 .23 9 6 R 0 L4 84 L55 3 1 91 . -10. -.32 17. 1 . 05 194. -1 . -.03 18. 1 .02 96P fl L55?

L562 199 . -3. -.08 23. 1.40 1 88. -7. -.24 25. 1 .43 96 P 0 L562

L570 1 89. -13. -.40 17. 1 . 02 1 82. -13. -.46 15. . 88 96T fl L67G

L57 5 266. 64 . 1 .99 17. 1 . 04 242. 47. 1.69 21 . 1 .25 96H fl L5 75 L603 230. 29. .89 12. • 74 21 8. 23. .81 12. .68 9 6 P 0 L6 03 L61 0 214. 13. .40 12. .73 233. 38. 1 .37 9. . 51 96 P fl L6 1 0 L663 199 . -2. -.07 13. . 82 171 . -23. -.84 17. .99 96 P fl L6 6 3

GR. MEAN - 202. NEWTONS GRAND MEAN - 195. NFWTONS TF ST DETERMINATIONS • 1 0 SD MEANS - 32. NEWTONS SD OF MEANS - 28. NEWTONS 29 LABS IN GRAND MEANS

AVERAGE SDR - 16. NEWTONS AVERAGE SDR - 17. NFWTONS

GR. MEAN - 45.31 POUNDS GRAND MEAN • 43.78 POUNDS

TOTAL NUMBER OF LABORATORIES REPORTING • 29

Best Values: E62 210 + 40 newtons

E55 200 + 40 newtons

Data from the following laboratories appear to have

been reported in incorrect units: 305.

60
REPORT NO. 51S TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T96-1 TABLE ? RING CRUSH (COMPRESSION RESISTANCE OF PAPERBOARD)

TAPPI STANDARD T472 SU-68

LAB CODE F MEANS

E62 E55 COORDINATES

MAJOR MINOR

AVG

R. SDR VAR PROPERTY- TEST 11

LI 07 0 123. 1 50. -89. 17. 1.13 96P RING CRUSH, H AND D L484 0 147. 145. -74. -3. 1 . 08 96 R RING CRUSH. REGMED

LI 2 2 O 153. 135. -76. -14. 1 .24 96 P RING CRUSH, H AND D

LI 76 0 155. 164. -55. 7. 1.49 96P RING CRUSH, H AND D L336 0 173. 1 81 . -30. 8. . 66 96P RING CRUSH, H AND D

L30 7 e 173. 174. -35. 2. .68 96 P RING CRUSH. H AND D

LI 91 0 1 85. 1 89. -17. 6. 1 .71 96 P RING CRUSH, H AND D L57 0 0 189. 1 82. -18. -1 . .95 96T RING CRUSH, TMI L329 0 190. 187. -14. 1. .79 96P RING CRUSH, H AND D L55 3 0 191 . 194. -8. 6. 1.04 96P RING CRUSH, H AND D

LI 71 0 198. 209. 7. 13. 1.35 96 B RING CRUSH, H AND D L562 0 199. 188. -6. -3. 1.41 96P RING CRUSH, H AND D L663 0 199. 171 . -17. -16. .90 96 P RING CRUSH, H AND D

LI 24 0 201 . 171 . -16. -18. 1.27 96 P RING CRUSH, H AND D

LI 57 0 202. 189. -3. -5. .85 96 P RING CRUSH. H AND D

LI 14 0 210. 210. 16. 6. 1 .04 96 P RING CRUSH, H AND D

L61 0 0 214. 233. 35. 21. .62 96P RING CRUSH. H AND D

LI 2 6 0 216. 210. 21 • 2. .83 96P RING CRUSH, H AND D

LI 00 0 216. 220. 27. 10. 1.54 96H RING CRUSH, H AND D L393 0 216. 206. 18. -1 . .57 96P RING CRUSH, H AND D L302 0 219. 207. 21 . -2. .73 96 H RING CRUSH. H AND D L35 0 0 228. 220. 36. 2. . 85 96P RING CRUSH, H AND D L603 0 230. 218. 37. -1. .71 96P RING CRUSH, H AND D

LI 27 * 231 . 181 . 14. -30. .71 96P RING CRUSH, H AND D

LI 41 0 232. 208. 32. -9. 1 • 20 96P RING CRUSH, H AND D L242 0 235. 236. 53. 10. .72 96 G RING CRUSH, GAYDON I LI 82 0 252. 234. 63. -3. . 50 96H RING CRUSH, H AND D L575 0 266. 242. 80. -5. 1.15 96H RING CRUSH, H AND D L305 # 984. 884. 1042. 21. 1 . 89 96P RING CRUSH, H AND D GMEANS

202. 95%195. ELLIPSE: 110. 29.

1 .00 WITH GAMMA • 40 DEGREES

61
POUNDS

RING CRUSH

SAMPLE E62 = 202. NEWTONS

SAMPLE E62 = 45.3 POUNDS

SAMPLE E55

SAMPLE E55

195. NEWTONS

43.8 POUNDS

o

r-~

LD

CD

O

CD

CDLD

O

LD

LD .

O .

LD

00

O

cn

LD

CSJ

o

(M

20 25 30 35 40 45 50

POUNDS

55 60 65 70

62
REPORT NO. 5 1 S TAPPI COLLABORATI VE REFERFNCE PROGRAM JANUARY 1970

SUMMARY TABLE

SAMPLE GRAND SD OF AVER REPL LABS LABS REPL TEST METHOD CODE MEAN MEAN SDR CRP I NCL PARTIC TAPPI REPEAT reprgd BURSTING STRENGTH, MODEL C H62 16.93 1.42 1.12 15 45 53 10 .98 3.98

T1 0-1 PSI H39 35.54 2.20 2.13 1.87 6.1 8 BURSTING STRENGTH, MODEL C-A H62 17.71 .81 1.15 15 36 39 1 0 1.01 2. 31

T1 0-2 PSI H39 36.13 1.46 2. 01 1.76 4.17 BURSTING STRENGTH, HIGH RANGE H40 54. 3 1 .9 2.6 15 36 45 10 2. 3 5.5

T1 1 -1 PSI H07 73.7 4.5 6.8 5. 9 12.8 TEARING STRENGTH, DEEP CUTOUT H21 64.4 3.9 2.1 15 114 126 1 0 1.9 10.8

T1 5-1 GRAMS El 0 57.2 3.4 1 .5 1.3 9.4 TEARING STRENGTH, NO CUTOUT E32 86. 1 3.8 2.5 15 14 16 10 2.2 10.5

T1 7-1 GRAMS E63 78. 3 3.4 2.2 2. 0 9.4 TENSILE STRENGTH, PACKAGING PAPERS H57 10.40 .38 . 66 20 4-r 52 12 .52 1 . 09

T1 9-1 KIL6NEWT0N/M E63 3.92 .20 . 1 8 .14 . 56 TENSILE STRENGTH, CRE TYPE J03 3.73 .18 . 1 8 20 39 53 1 2 .14 . 61 T20-1 KILONEWTON/M J 07 6.29 .23 .31 .26 .67 TENSILE STRENGTH, PENDULUM TYPE J03 3.78 .24 .21 20 35 42 12 .16 . 66 T20-2 KILONEWTON/M J07 6.32 .46 . 36 .29 1 . 30

T.E. A. , PACKAGING PAPERS H57 105.9 8.1 16.2 20 15 18 12 12.9 24 .

0

T25-1 JOULES/SQ M E63 82.6 5.8 10.5 8. 4 16.9

T.E. A.

,

PRINTING PAPERS J03 34. 8 4.3 4.8 20 18 21 1 2 3. 9 12.0

T26-1 JOULES/SQ M J07 74.7 6.9 8.9 1 19.6 ELONGATION TO BREAK, PACKAGING PAPER H57 1 . 77 .18 .16 20 1 4 17 12 .13 . 49 T28-1 PERCENT E63 3.21 .26 .30 .24 . 72 ELONGATION TO BREAK, PRINTING PAPER JO 3 1 . 54 .14 .14 20 18 22 12 .12 . 39 T29-1 PERCENT J07 1 .91 .20 .15 .12 . 55 FOLDING ENDURANCE (MIT) H23 405. 141 . 93. 15 43 54 1 0 82 . 392. T30-1 DOUBLE FOLDS H35 70. 33. 24. 21 . 93. FOLDING ENDURANCE (MIT) H23 2.590 .135 .108 15 41 54 10 . 09 5 • 77 <T T30-2 LOG( 1 0 ) FOLD H35 1 . 769 .236 .167 .146 .658 STIFFNESS, GURLEY H70 252. 12. 1 A. 1 0 33 39 1 0 12. 3 3. T35-1 GURLEY UNITS H68 463. 27. 24. 21 . 76. STIFFNFS S, TABER J09 17.32 1.11 . 89 1 0 25 26 5 1.10 3 .

1

T36-1 TABER UNITS B63 19.00 1 . 00 . 83 1.03 2.87 SURFACE PICK STRENGTH, IGT HI 7 27.1 8.8 2.3 4 11 1 6 4 3. ? 24.5

T49-1 KP CM/SEC H80 61.6 24.7 4.

0

5.5 68.4 SURFACE PICK STRENGTH, WAX HI 7 5.97 1.10 .41 5 20 21 5 .51 3. 04 T50-1 WAX NUMBER H80 11.38 .91 . 50 .61 2.51 CONCORA ( CMT ) E62 226. 15. 15. 10 15 16 10 13. 42.

T91 -1 NEWTONS F.55 177. 15. 12. 11 • 41 . RING CRUSH E62 202. 32. 16. 1 0 28 29 10 14. 90. T96-1 NEWTONS E55 1 95. 28. 1 7. 15. 78.
N BS-1 1 4A (REV. 7-73)

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBI.K ATION OR REPOR T NO. TAPPI CRP 51S2. Gov't Accession

No.

3. Recipient’s Accession No.

4. TITLE AND SUBTITLE

Technical Association of the Pulp and Paper Industry

COLLABORATIVE REFERENCE PROGRAM FOR PAPER

Report //51S

5. Publication Date 3/28/78

6. Performing Organization Code

7. AUTHOR(S)

R. G. Powell, E. B. Randall. Jr., J. Horlick

8. Performing Organ. Report No. NBSIR 78-1336

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, D.C. 20234

10. Project/Task/Work Unit No. 4015578

11. Contract/Grant No.

12. Sponsoring Organization Name and Complete Address (Street, City, State, ZIP)

Collaborative Testing Services, Inc., 9241 Wood Glade Drive,

Great Falls, Virginia 22066; and Technical Association

of the Pulp and Paper Industry

13. Type of Report & Period Covered

Final

14. Sponsoring Agency Code

15. SUPPLEMENTARY NOTES

16. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant

bibliography or literature survey, mention it here.)

Collaborative Reference Programs provide participating laboratories with the means for checking periodically the level and uniformity of their testing in

comparison with that of other participating laboratories. An important

by-product of the programs is the provision of realistic pictures of the state

of the testing art. This is one of the periodic reports showing averages for

each participant, within and between laboratory variability, and other information for participants and standards committees.

17. KEY WORDS (six to twelve entries; alphabetical order; capitaliz name; separated by semicolons)

Collaborative reference program; Laboratory

Reference samples, Testing calibration.

18. AVAILABILITY |

' Unlimited

[fc For Official Distribution. Do Not Release to NTIS QJ Order From Sup. of Doc., U.S. Government Printing Office Washington, D.C. 20402, SD C at. No. CH

Order From National Technical Information Service (NTIS)

Springfield, Virginia 22151

> only the first letter of the first key word unless a proper

evaluation; Paper; Precision;

19. SECURITY CLASS 21. NO. OF PAGES

(THIS REPORT)

UNCLASSIFIED 70

20. SECURITY CLASS 22. Price (THIS PAGE)

UNCLASSIFIED

USCOMM.DC 29042-P74
This diagram is composed of two full

size 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