/H£s//e77-

litlTECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 49S

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 lectivity

Rubber (4 times per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

ASTM Textiles (3 times per year)

Flammability (FF3-71 and FF5-74)

/ ASTM Cement (2 times per year)

Chemical (11 chemical components)

Physical (8 characteristics)

AASHTQ Bituminous

Asphalt cement (2 tijmes per year)

Cutbacks (once a year)

lev

§139

Collaborative Reference Programs

B360 Polymer Building

National Bureau of Standards

Washington, D.C. 20234

Rev. 4/77
TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

Report No. 49S

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

U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

NBSIR 77-1323
}
Introduction

Reports 49S and 49G comprise the first set of reports for the

77-78 program year. Both reports will no longer be sent

automatically to all participants. Participants in tests

which involve strength properties of paper will receive

only the S report; those in tests which measure other properties will receive only the G report.

Notes and comments 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.

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

December 1, 1977
TAPPI-NBS COLLABORATIVE REFERENCE PROGRAM

BACKGROUND AND PURPOSE

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

Paper Industry established a collaborative reference program to provide a participating

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

comparison with that of other laboratories.

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

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

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

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

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

HOW THE PROGRAM WORKS

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

may enter the program at any time.

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

Provisional Values are Provided with the Samples for one or both of the test levels, depending on method. The provisional values permit serious discrepancies to be detected without

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

values should be known to the operator.)

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

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

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

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

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

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

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

recognized reference laboratories in this and other countries.

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

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

these values for each test method.

A Longer Summary Report, Showing the Data from all Participants, is also prepared. In the summary report, of which this report is an example, each laboratory is identified by

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

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

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

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

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

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

Repeatability and Reproducibility Statements such as Contained in ASTM, 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.

ii
PAGE

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21

24

27

30

33

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38

41

44

47

50

53

54

57

59

62

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

To Convert

From To

Multiply

by

Bursting strength psi kPa 6.895

kg/ cm

2 kPa 98.07

bar kPa 100.00

Tearing strength g mN 9.807

Tensile strength lb/ in. kN/m .1751

lb/0.5 in. kN/m .3502

lb/15 mm kN/m .2965

kg/15 mm kN/m .6538

kg/25 mm kN/m .3923

kg/mm kN/m 9.807

Tensile energy absorption ft-lb/ft

2 J/m

2 14.59

in. -lb/in.

2 J/m2 175.1

kg-m/m

2 J/m2 9.807

Bending stiffness g- cm yN-m 98.07

Flat-crush strength (Concora) lb N 4.448

Ring-crush (TAPPI) lb N 4.448

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

Thickness mil ym 25.40

iv
KEY TO TABLES AND GRAPHS

MEAN - The average of individual TEST DETERMINATIONS.

The number of TEST DETERMINATIONS in the

mean is given in the upper right corner of

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

bottom of this table.

GRAND MEAN -

(GR. MEAN)

The average of the individual laboratory

MEANS, excluding laboratories flagged

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

GRAND MEAN is given in US customary units

and, where applicable, in SI metric units.

SD OF MEANS - (SD MEANS)

The standard deviation of the laboratory

MEANS about the GRAND MEAN ; an index of the

among-laboratory precision.

DEV - The deviation or difference of the laboratory

MEAN from the GRAND MEAN.

N. DEV - The normal deviate or ratio of the DEV to

the SD OF MEANS; an indication of the degree

of divergence of the laboratory MEAN from

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

participant is not following the procedure

considered standard for this analysis.

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 0.16 1.67

15 0.56 1.53

20 0.6l 1.15

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 20l 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 -

Summary - (At end of

report)

REPL CRP -

REPL TAPP

I

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% of the points representing the laboratories.

Plotted symbols are as explained above

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

falls outside of the ellipse should carefully

reexamine the testing procedure he is

following

.

(GRAPH The graph is plotted with an ellipse when there

NOTE) 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.

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.

3
REPEAT -

REPROD -

Best values -

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 vising equipment that is standard

for the analysis should be able to achieve results

within the plus-minus (+) limits, when these are shown along with the best values

.

4
REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T10-1 TABLE 1 BURSTING STRENGTH. PSI TAPPI STANDARD T403 OS-76. BURSTING STRENGTH OF PAPER - PERRINS MODEL C SAMPLE PRINTING SAMPLB PRINTING TEST D. 15 LAB H60 74 GRAMS PER SQUARE METER H05 89 GRAMS PER SQUARE METER CODE MEAN DEV N.DEV SDR R. SDR MEAN DEV N.DEV SDR fi.SPR VAR F LAB

LI 07 19.20 .99 .75 .86 .71 32.93 .72 .46 1.71 1 .06 IOC 0 LI 07

LI 21 16.63 -1.68 -1 .28 1.84 1.52 31 .97 -.25 -.16 1.42 . 88 IOC 0 LI 21

LI 31 16.67 -1.55 -1.18 1.29 1. 07 31.07 -.35 -.22 1.68 1.05 IOC a LI 31

LI 34 le.oo -.21 -.16 1 .58 1.31 33.43 1.22 .77 2.16 1 .35 IOC 0 LI 34

LI 50 16.53 .32 .24 1.27 1 . 06 33.77 1.55 .99 1 .93 1 .20 IOC 0 LI 50

LI 53 20.70 2.49 1.90 2.02 1 . 68 34.77 2.55 1.62 1.92 1 .19 1 oc 0 LI 53

LI 50 19.40 1.19 .90 .99 . 82 33.87 1.65 1.05 1.13 .70 IOC 0 LI 50

LI 62 13.37 -4.85 -3.70 1.33 1.10 26.07 -5.35 -3.39 1.51 .94 1 oc X LI 62

LI 67 17.66 -.55 -.42 .58 .48 32.45 .24 .15 .90 .56 IOC 0 LI 67

Li 63 16.93 -1.28 -.98 1.37 1.14 29. 80 -2.41 -1.53 1.67 1.04 1 OC 0 LI 83

LI 91 16.50 -1.71 -1.31 1.04 . 86 30.93 -1.26 -.81 1.40 .87 IOC 0 LI 91

L2 03A 19.70 1.49 1.13 .94 .78 34.40 2.19 1 .39 1 .97 1.23 1 oc 0 L203A

L203B 17.27 -.98 -.72 .72 .60 30.53 -1.68 -1 .07 1 .49 .93 1 OC 0 L203B

L207 20.57 2.35 1.79 .90 .75 35.23 3.02 1.92 1.62 1 .01 1 oc 0 L207

L223A 16.79 .57 .44 1.05 .87 34.4 0 2.19 1 .39 1.21 .75 1 oc 0 L223A

L22 5 16.67 .65 .50 .74 .62 32.10 -.11 -.07 1 .75 1 .09 IOC 0 L225

L232 19.10 .89 .68 1.11 .92 32.87 .65 .42 1 .96 1.22 1 oc 0 L232 L237A 17.30 -.91 -.70 .65 . 54 31 .93 -.28 -.18 1 .00 .62 1 oc 0 L237A

L237B 17.87 -.35 -.27 .95 .79 31 . 57 - . 65 -.41 .96 .60 IOC 6 L237P

L243 16.40 .19 .14 1.07 . 89 31.90 -.31 -.20 1 .26 .80 IOC 0 L243 L240 16.04 -.18 -.13 1.16 .96 30.92 -1 .29 -.82 1.37 .85 10E 0 L248

L2 49 16.79 -1.42 -1.06 .88 .73 30.44 -1.77 -1.13 1.61 1 .00 IOC 0 L249

L261 17.49 -.72 -.65 1 .22 1.01 29.51 -2.70 -1.71 1.41 .88 IOC 0 L261

L26 4 16.07 -.15 -.11 . 88 .73 31.47 -.75 -.47 .92 .57 IOC 0 L264

L266 17.27 -.95 -.72 1.33 1.11 32.47 .25 .16 1.64 1 .02 IOC 0 L260

L274 16.60 -1.41 -1.08 1.25 1 . 04 33.11 .89 .57 1.17 .73 IOC 0 L274

L27 5 14.99 -3.22 -2.46 1 .05 .87 31.93 -.28 -.18 1.73 1.08 IOC » L 275 L279 16.36 -1.83 -1.40 .75 .63 29.50 -2.71 -1.72 1.28 .80 1 oc 0 L2?9

L299 20.77 2.55 1.95 1.37 1.14 34.40 2.19 1.39 1 .90 1 .18 10C 0 L299

L3 05 17.27 -.95 -.72 . 88 .73 31.63 -.58 -.37 1 .41 .88 10C 0 L305

L31 1 19.67 1.45 1.11 .90 .75 33.40 1.19 .75 1.24 .77 1 oc 0 L311

L312 17.70 - • 51 -.39 1.46 1.21 31.87 -.35 -.22 1 .45 .90 IOC 0 L312

L315 20.67 2.45 1.87 1.21 1.00 34.93 2.72 1.73 1 .98 1 .23 1 oc 0 L315

L321 20.78 2.57 1.96 1.90 1 . 58 39. 19 6.98 4.43 3.90 2.43 1 oc X L321 L322 17.69 -.32 -.24 1.78 1.47 31.07 -1.15 -.73 1.53 .95 1 oc 0 L322

L326 17.27 -.95 -.72 1.33 1.11 3 0.87 -1.35 -.85 1.19 . 74 1 oc 0 L326

L3 3 0 19.77 1.56 1.19 .86 .71 32.86 .65 .41 1.37 .85 IOC 0 L330

L331 18.47 .25 .19 1.36 1.12 33.27 1.05 .67 2.22 1 .38 1 oc 0 L331

L333 19.60 1.39 1.06 1.24 1 . 03 32.33 .12 . 08 3.92 2.44 1 OC 0 L333

L339 18.31 .09 .07 2.70 2. 24 31 .40 -.81 -.52 1 .61 1 .00 1 oc 0 L339

L344 19.43 1.22 .93 1.13 .94 31.73 -.43 -.30 1 .93 1 . 20 1 OC 0 L344

L356 19.36 1.15 .87 1.88 1.56 30.39 -1 .82 -1.16 1 .61 1 .00 1 oc 0 L356

L358 18.87 .65 .50 1.16 .96 31 .03 -.38 -.24 1.94 1.21 1 OC 0 L358

L360 16.73 -1.48 -1.13 .75 .62 30.55 -1.67 -1.06 1 .96 1 .22 IOC 0 L360

L390 18.63 .62 .47 1 .21 1.00 34.37 2.15 1.37 1 .39 .87 1 oc 0 L390

L563 17.17 -1 . 04 -.79 1.89 1.57 33.43 1.21 .77 2.25 1 . 40 1 OC 0 L563

L568 18.26 .07 .05 1.16 .96 20.44 -3.77 -2.40 1.32 .82 1 OC * L568

L599 18.00 -.21 -. 16 1.49 1.24 32.95 .74 .47 1.23 .77 1 oc 0 L599

GR. MEAN - 18.21 PSI GRAND MEAN - 32.21 PSI TEST DETERMINATIONS - 15

SD MEANS • 1.31 PSI SD 0F MEANS - 1.57 PSI 46 LABS IN GRAND MEANS

AVERAGE SDR - 1.21 PSI AVERAGE SDR - 1 .61 PSI

GR. MEAN - 125.6 KIL0PASCAL GRAND MEAN - 222.1 KIL0PASCAL

LI 28 16.33 -1 .88 -1 .43 1.05 .87 30.33 -1.88 -1.19 1 .45 .90 1 OB L 1 28 L242 19.60 1.39 1 . 06 1 .22 1 • 01 32.59 .37 .24 1.25 .78 10T L242

L250L 17.79 -.43 -.33 1.16 . 96 28.90 -3.31 -2.10 1 .06 .66 1 ON L250L

L251 18.95 .73 . 56 .82 .68 32.67 .46 .29 .93 .58 1 ov L251

L2 69 21.73 3.52 2.60 1.32 1.10 35.77 3.55 2.26 1.51 .94 10A * L269

L484 22.53 4.32 3.29 .83 .69 36.00 3.79 2.40 1.73 1 . 08 10M L484 TOTAL NUMBER OF LABORATORIES REPORTING - 54

Best Values: H60 18.3 + 2.2 psi

H05 32.4 ± 2.5 psi

5
REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T10-1 TABLE 2 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS-76. BURSTING STRENGTH OF PAPER - PERKINS MODEL C

LAB MEANS COORDINATES AVG

CODE F H60 H05 MAjefi MIN6B

LI 62 X 13.37 26.87 -7.18 .72 L275 « 14.99 31.93 -2.14 2.43

LI 28 16.33 30.33 -2.63 .40 L279 0 16.38 29.50 -3.27 -.14

LI 91 0 16.50 30.93 -2.05 .62

LI 21 0 16.53 31 .97 -1.20 1.21

LI 31 0 16.67 31 .87 -1.20 1 , 04 L36 0 0 16.73 30.55 -2.22 .20

L249 0 16.79 30.44 -2.27 .09 L274 0 16.80 33.11 -.12 1.67

LI 83 0 16.93 29.80 -2.70 -.40

L563 o 17.17 33.43 .36 1.56

L305 0 17.27 31.63 -1.03 .42 L203B 0 17.27 30.53 -1.91 -.24

L326 0 17.27 30.87 -1 .65 -.04

L268 0 17.27 32.47 -.36 .91 L237A 0 17.30 31.93 -.77 . 57

L2 6

1

0 17.49 29.51 -2.60 -1 .02

LI 6 7 0 1 7.66 32.45 -.14 . 59

L31 2 0 17.70 31.87 -.58 .21 L250L 17.79 28.90 -2.92 -1.62 L237B 0 17.87 31 . 57 -.73 -.10

L32 2 0 17.89 31 .07 -1.11 -.42

L599 o 18.00 32.95 .47 .61

LI 34 0 18 .00 33.43 .85 .90 L248 0 18.04 30.92 -1.14 -.62

L264 o 18.07 31.47 -.69 -.32

L568 * 18.28 28.44 -3. 00 -2.29

L339 o 18.31 31 . 40 • o o -.56

L24 3 0 18.40 31 .90 -•14 -.34

L331 o 18.47 33.27 1.00 .42

LI 5 0 o 18.53 33.77 1 .44 .67 L223A 0 18.79 34.40 2. 1 0 .84 L390 o 18.83 34.37 2.10 .78 L358 0 18.87 31.83 .08 -.75

L225 0 18.87 32.10 .30 -.59

L251 18.95 32.67 • 81 -.32

L23 2 0 19.10 32.87 1 .05 -.32

LI 07 0 19.20 32.93 1.17 -.36

L3 56 0 19.36 30.39 -.78 -2.00

LI 58 o 19.40 33.87 2.03 .03 L344 0 19.43 31.73 .34 -1 .27 L333 o 19.60 32.33 .92 -1 . 04 L242 19.60 32.59 1 .13 -.90

L311 0 19.67 33.4 0 1.82 -.46

L2 03A 0 19.70 34.40 2.64 .10 L330 0 19.77 32.86 1.45 -.87

L2 07 0 20.57 35.23 3.83 -.10

L315 0 20.67 34.93 3.65 -.36

LI 53 0 20.70 34.77 3.53 -.48

L299 0 20.77 34.40 3.28 -.75

L321 X 20.78 39.19 7.14 2.08

L269 21 .73 35.77 4.95 -.72

L484 * 22.53 36.00 5.61 -1.22

GMEANS

:

18.21 32.21 95* ELLIPSE: 4.72 2.30

fi. SDR VAR PROPERTY— -TE ST IN<3TR1

1 .02 IOC BURSTING STRENGTH UP TO

.97 IOC BURSTING STRENGTH UP TO

.88 10B BURSTING STRENGTH UP TO

.71 IOC BURSTING STRENGTH UP TO

• 86 IOC BURSTING STRENGTH UP TO

1.20 IOC BURSTING STRENGTH UP TO

1.06 IOC BURSTING STRENGTH UP TO

.92 IOC BURSTING STRENGTH UP TO

• 86 IOC BURSTING STRENGTH UP TO

.88 IOC BURSTING STRENGTH UP TO

1.09 IOC BURSTING STRENGTH UP TO

1 .48 IOC BURSTING STRENGTH UP TO

.80 IOC BURSTING STRENGTH UP TO

.76 IOC BURSTING STRENGTH UP TO

.92 IOC BURSTING STRENGTH UP TO

1.06 IOC BURSTING STRENGTH UP TO

.58 1 oc BURSTING STRENGTH UP TO

.94 IOC BURSTING STRENGTH UP TO

.52 IOC BURSTING STRENGTH UP TO 1.06 IOC BURSTING STRENGTH UP TO

• 81 ION BURSTING STRENGTH UP TO

.69 IOC BURSTING STRENGTH UP TO

1.21 IOC BURSTING STRENGTH UP TO

1 .00 IOC BURSTING STRENGTH UP TO

1.33 IOC BURSTING STRENGTH UP TO

.91 10E BURSTING STRENGTH UP TO

.65 IOC BURSTING STRENGTH UP TO

.89 IOC BURSTING STRENGTH UP TO

1.62 IOC BURSTING STRENGTH UP TO

.84 IOC BURSTING STRENGTH UP TO

1.25 IOC BURSTING STRENGTH UP TO

1.13 IOC BURSTING STRENGTH UP TO

• 81 IOC BURSTING STRENGTH UP TO

.93 IOC BURSTING STRENGTH UP TO

1.08 IOC BURSTING STRENGTH UP TO

.85 IOC BURSTING STRENGTH UP TO

.63 10V BURSTING STRENGTH UP TO

1.07 IOC BURSTING STRENGTH UP TO

• 69 IOC BURSTING STRENGTH UP TO

1.28 IOC BURSTING STRENGTH UP TO

.76 IOC BURSTING STRENGTH UP TO

1.07 IOC BURSTING STRENGTH UP TO 1.74 IOC BURSTING STRENGTH UP TO

.89 1 0 T BURSTING STRENGTH UP TO

.76 IOC BURSTING STRENGTH UP TO

1 .00 IOC BURSTING STRENGTH UP TO

.78 IOC BURSTING STRENGTH UP TO

.88 IOC BURSTING STRENGTH UP TO

1.12 IOC BURSTING STRENGTH UP TO

1 .44 IOC BURSTING STRENGTH UP TO

1.16 IOC BURSTING STRENGTH UP TO 2.00 IOC BURSTING STRENGTH UP TO

1.02 1 0 A BURSTING STRENGTH UP TO

• 88 10M BURSTING STRENGTH UP TO

1 .00 WITH GAMMA - 53 DEGREES

---CONDITIONS

45 PSI, PERKINS c. MANUAL CLAMP

45 PSI . PERKINS c. MANUAL CLAMP

45 PSI, PERKINS B. MANUAL CLAMP

45 PSI , PERKINS c. MANUAL CLAMP

45 PSI. PERKINS C. MANUAL CLAMP

45 PSI, PERKINS c. MANUAL CLAMP

45 PSI , PERKINS c. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI. PERKINS C. MANUAL CLAMP

45 PSI, PERKINS C. MANUAL CLAMP

45 PSI, PERKINS C. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI, PERKINS c. MANUAL CLAMP

45 PSI, PERKINS c. MANUAL CLAMP

45 PSI, PERKINS C. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI, PERKINS C. MANUAL CLAMP

45 PSI , PERKINS C, MANUAL CLAMP

45 PSI , PERKINS c. MANUAL CLAMP

45 PSI, LHOMARGY, MAN • CLAMP, 20C,65*RH

45 PSI, PERKINS c, MANUAL CLAMP

45 PSI, PERKINS c. MANUAL CLAMP

45 PSI, PERKINS c. MANUAL CLAMP

45 PSI, PERKINS C, MANUAL CLAMP

45 PSI. PERKINS c. MANUAL CLAMP

45 PSI, PERKINS C. MANUAL CLAMP

45 PSI . PERKINS C. MANUAL CLaMP

45 PSI , PERKINS c. MANUAL CLAMP

45 PSI, PERKINS C. MANUAL CLAMP

45 PSI. PERKINS C. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI, PERKINS C. MANUAL CLAMP

45 PSI . PERKINS c. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI, PERKINS c. MANUAL CLAMP

AS PSI , L # W, MANUAL CLAMP. 20C.65* RR

45 PSI, PERKINS c. MANUAL CLAMP

45 PSI . PERKINS C, MANUAL CLAMP

45 PSI, PERKINS C. MANUAL CLAMP

45 PSI, PERKINS c. MANUAL CLAMP

45 PSI. PERKINS c. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI , L W , MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI . PERKINS C. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI , PERKINS C. MANUAL CLAMP

45 PSI . PERKINS C. MANUAL CLAMP

A 5 PSI, PERKINS C. MANUAL CLAMP

45 PSI , PERKINS c. MANUAL CLAMP

4b PSI . PERKINS A. MANUAL CLAMP

45 FSI. REGNED MT/MOT. MANUAL CLAMP

6
KIL0PASCRL

180

1

90

200

210

220

230

240

250

260

BURSTING STRENGTH , MODEL C

SAMPLE H60 = 18.2 PSI SAMPLE HOS = 32.2 PSI

SAMPLE H60 = 126 K I L0PASCAL SAMPLE H05 = 222 K1LGPASCAL

i

1 1— 1 1 1 1

1 90 100 110 120 130 140 150 160

KILOPRSCflL

7
REPORT NO. 49

S

IAFPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T10-2 TABLE 1 BURSTING STRENGTH, PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTH OF PAPER - PERKINS MODEL C-A OR C WITH AIR OR HYDRAULIC CLAMPS

SAMPLE PRINTING SAMPLE PRINTING TEST D.' 15 LAB H60 74 GRAMS PER SQUARE METER H05 89 GRAMS PER SQUARE METER

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

LI 00 19.86 1.26 1.18 1.21 1. 01 33*09 .60 .57 1.83 1 .19 10D 0 L100

LI 15 16.67 -1.94 -1.83 .98 .81 34*13 1.65 1 .57 1.42 • 92 10D • LI 15

LI 18 20.01 1.41 1 .33 1.33 1.11 32.47 -.02 -.02 1.23 .80 1 OD 0 LI 18

LI 22 19.20 .60 .56 1.21 1.01 31.53 -.95 -.91 1.46 .94 1 OF e LI 22

LI 2 5 17.73 -.87 -.82 2.31 1. 93 36.93 4.45 4.24 2.63 1 .71 1 OD X LI 25

LI 41 18.03 -.57 -.54 1.26 1.05 32.12 -.37 -.35 1.93 1.25 1 OD 0 LI 41

LI 46 19.40 .80 .75 .91 .76 33.93 1 .45 1 .38 1 .39 .90 1 OD 0 LI 48

LI 57 21.07 2.46 2.32 1.15 .96 34.20 1.71 1 .63 1.51 .98 1 OD 0 LI 57

LI 59 15.38 -3.22 -3.04 1.10 .92 27.70 -4.79 -4.56 1.19 .77 1 OD X LI 59

LI 63 18.97 .36 .34 1.33 1.11 32.93 .45 .43 1 .91 1.24 1 OD 0 LI 63

LI 66 17.17 -1.44 -1.36 .94 .78 31.17 -1.32 -1 .26 .90 .58 1 OD 0 LI 66

LI 76 20.63 2.03 1.91 1.33 1.11 33.37 .88 .84 1.45 .94 1 OD e LI 76

LI 85 19.71 1.11 1.05 .49 .41 32.55 .06 • 06 .57 .37 1 OD 0 LI 85 L190C 18.20 -.40 -.38 1.26 1 . 06 31 .07 -1.42 -1 .35 1 .83 1.19 1 OD e L190C

LI 9 OR 19.27 .66 .62 .80 .67 32.27 -.22 -.21 1.57 1 .02 1 OD 0 L190R

LI 94 18. 15 -.45 -.43 1.01 . 84 31 .28 -1.21 -1 .15 1 .39 .90 1 OD 0 L 1 94 L202 18.83 .23 .22 .84 .70 31.70 -.79 -.75 1 .16 .75 1 OD 0 L202

L217 18.27 -.34 -.32 .75 .63 30.60 -1.89 -1.80 1 .49 .97 1 OD e L217

L22 4 18.70 .10 .09 1.49 1.24 32.93 .45 .43 1.62 1 . 05 1 OD 0 L224

L22 6B 19.51 .90 .85 .79 .66 32.52 .03 .03 1.92 1.24 1 OD 6 L226B

L226C 18.42 -.18 -.17 1 .81 1.51 33.83 1 .34 1 .28 2.46 1 .60 1 OD 0 L2 26C

L241 19.07 .46 .44 1.74 1 . 45 31 .27 -1.22 -1.16 1.02 .66 1 OD 0 L241 L255 17 .93 -.67 -.63 .70 .59 30.53 -1.95 -1.66 1.19 .77 1 OD 0 L255

L257A 17.27 -1.34 -1.26 2.19 1. 82 32.93 .45 .43 1.75 1.13 1 OD 0 L257A

L257B 17.53 -1.07 -1.01 1 .88 1.57 33.60 1.11 1 .06 2.1 0 1 . 36 1 OD 0 L257B

L257C 17.20 -1 .40 -1 .33 1.37 1.15 32.67 .18 .17 1 .95 1.27 1 OD 0 L257C

L262 16.83 -1.77 -1 .67 .70 . 58 33.00 .51 .49 1 .45 .94 1 OD 0 L262

L28 0 19.83 1.22 1 .15 1.15 . 96 33.99 1.51 1 .44 1.36 .88 1 OD e L280

L2 85 17.93 -.67 -.63 1.28 1 . 07 31.93 -.55 -.53 1 .53 • 99 1 OD a L2 85 L309 17.55 -1 .05 -.99 1.57 1.31 30.84 -1 .65 -1 .57 2.29 1 .48 1 OD 0 L309

L341 18.83 .23 .22 .96 .80 32.33 -.15 -.14 1.11 .72 1 OD 0 L34

1

L3 52 18.09 -.52 -.49 .84 .70 31.56 -.93 -.88 .84 .54 1 OD 0 L352

L37 8 17.42 -1.19 -1.12 1 . 06 .88 33. 07 .58 .55 2.31 1.50 1 OD 0 L37 8 L567 19.33 .73 .69 1.59 1.33 33.20 .71 .68 1 .37 .89 1 OD 0 L567

L57 5 18.78 .18 . 17 1.23 1. 02 31.85 -.63 -.60 1 .38 .90 1 OD 0 L575

L581 18.60 -.00 -.00 1.49 1.24 32.90 • 41 .39 1.59 1.03 1 OD 0 L581

L5 87 18.90 .30 .28 1.09 .91 33.63 1.15 1 . 09 1.59 1 .03 1 OD 0 L587

GR. MEAN • 18.60 PSI GRAND MEAN • 32.49 PSI TEST DETERMINATIONS • 15 SD MEANS - 1.06 PSI SD 0F MEANS • 1.05 PSI 35 LABS IN GRAND MEANS AVERAGE SDR - 1.20 PSI AVERAGE SDR •

1 .54 PSI GR . MEAN • 128.3 KIL6PASCAL GRAND MEAN - 224.0 KIL0PASCAL

TOTAL NUMBER OF LABORATORIES REPORTING * 37

Best Values: H60 18.7 + 1.6 psi

H05 32.5 + 1.6 psi

8
BE POST NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 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 COG RD I NATES

CODE F B6 0 H05 MAJOR MINOR

LI 59 X 15.38 27.70 -5.64 -1.21

LI 1 5 « 16.67 34.13 -.25 2.53

L262 0 16.83 33.00 -.92 1.60

LI 66 0 17.17 31.17 -1.95 .05 L257C 0 17.20 32.67 -.88 1.11 L257A 0 17.27 32.93 -.65 1.25 L378 0 17.42 33.07 -.45 1.24 L257B 0 17.53 33.60 .00 1.55

L3 09 0 17.55 30.84 -1.90 -.45

LI 2 5 X 17.73 36.93 2.46 3.81

L2 85 0 17.93 31.93 -.87 .07 L255 0 17.93 30. 53 -1.84 -.94

LI 41 0 18.03 32.12 -.66 .13 L352 0 18.09 31.56 -1.02 -.31

LI 94 0 18.15 31.28 -1.16 -.55

L19 0C 0 18.20 31.07 -1 .28 -.74

L217 0 18.27 30.60 -1.55 -1.12 L226C 0 18.42 33. 83 .80 1.09

L5 81 0 18.60 32.90 .28 .30 L224 0 18.70 32.93 .38 .26 L575 0 18.78 31.85 -.31 -.58

L202 0 18.83 31 .70 -.38 -.72

L341 0 18.83 32.33 .06 -.27

L587 0 18.90 33.63 1.01 .62

LI 63 0 18.97 32.93 .57 .07

L24

1

0 19.07 31 .27 -.51 -1 .20

LI 22 0 19.20 31 . 53 -.23 -1.10

LI 9 OK 0 19.27 32.27 .32 -.62

L5 67 0 19.33 33.20 1.02 .01

LI 4 8 0 19.40 33.93 1.58 .49 L226B 0 19.51 32.52 .67 -.60

LI 85 0 19.71 32.55 .84 -.73

L28 0 0 19.83 33.99 1 .93 .24

LI 00 0 19.86 33.09 1.32 -.44

LI 18 0 20.01 32.47 1.00 -.99

LI 76 0 20.63 33.37 2.07 -.77

LI 57 0 21.07 34.20 2.96 -.48 GMEANS: 18.60 32.49

95* ELLIPSE: 3. 09 2.36

AVO

R. SDR VAR PROPERTY— -TEST INJ3TR1

.85 10D BURSTING STRENGTH UP T 0 .87 10D BURSTING STRENGTH UP T0

.76 10D BURSTING STRENGTH UP T0

.68 10 D BURSTING STRENGTH UP T0

1.21 1 OD BURSTING STRENGTH UP T0 1.48 1 0 D BURSTING STRENGTH UP TO

1.19 1 OD BURSTING STRENGTH UP TO

1.47 1 0 D BURSTING STRENGTH UP TO

1.40 1 OD BURSTING STRENGTH UP TO

1.82 1 OD BURSTING STRENGTH UP TO

1.03 10D BURSTING STRENGTH UP TO

.68 1 OD BURSTING STRENGTH UP TO

1.15 1 OD BURSTING STRENGTH UP TO

.62 1 OD BURSTING STRENGTH UP TO

.87 1 OD BURSTING STRENGTH UP TO

1.12 1 OD BURSTING STRENGTH UP TO

.80 1 OD BURSTING STRENGTH UP TO

1.56 1 OD BURSTING STRENGTH UP TO

1.14 1 0 D BURSTING STRENGTH UP TO 1.15 1 OD BURSTING STRENGTH UP TO

.96 1 OD BURSTING STRENGTH UP TO

.73 1 OD BURSTING STRENGTH UP TO

.76 1 OD BURSTING STRENGTH UP TO

.97 1 OD BURSTING STRENGTH UP T0 1.17 1 OD BURSTING STRENGTH UP TO

1.05 1 OD BURSTING STRENGTH UP TO

.98 1 OF BURSTING STRENGTH UP TO

.84 1 OD BURSTING STRENGTH UP TO

1.11 1 OD BURSTING STRENGTH UP TO

.83 1 OD BURSTING STRENGTH UP TO

.95 1 OD BURSTING STRENGTH UP TO

.39 10D BURSTING STRENGTH UP TO

.92 1 OD BURSTING STRENGTH UP TO

1.10 1 OD BURSTING STRENGTH UP TO

.95 1 OD BURSTING STRENGTH UP TO

1.02 1 0 D BURSTING STRENGTH UP TO

.97 1 OD BURSTING STRENGTH UP TO

1 .00 WITH GAMMA - 43 DEGREES

---CONDITIONS

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 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 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 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 PSI. PERKINS CA OR C. AIR CLAMP

45 PSI, PERKINS CA OH 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 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 PSI, PERKINS CA OR C. AIR CLAMP

45 PSI , PERKINS CI, H. CLAMP, TRANSDUCER

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 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 PSI, PERKINS CA OR C, AIR CLAMP

45 PSI , PERKINS CA OR C. AIR CLAMP

9
KIL0PRSCRL

200

205

210

215

220

225

230

235

240

245

250

BURSTING STRENGTH, MODEL C-R

SAMPLE H60 = 18.6 PSI SAMPLE H05 = 32.5 PSI

SAMPLE H60 = 128-3 K1L0PASCAL SAMPLE H05 = 224-0 KIL0PASCAL

100 105 110 115 120 125 130 135 140 145 150 155

KILOPRSCRL

10
REPORT NO. 49S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS Tll-1 TABLE 1 BURSTING STRENGTH, HIGH RANGE, PSI TAPPI STANDARD T403 OS-76, BURSTING STRENGTH OF PAPER - PERKINS MODEL C OR C-A

SAMPLE INDEX SAMPLE K RAFT TEST D »

' 15 LAB E 24 242 GRAMS PER SQUARE METER B08 149 GRAMS PER SQUARE METER

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

LI 0 0 66*0 .2 .08 5.6 1 .44 80.0 1.7 .40 5. 8 .87 1 ID 0 LI 00

LI 03 67.6 -.2 -.07 3.3 . 85 83.7 5.4 1.30 6. 1 .93 1 1C G LI 03

LI 07 71.8 4.0 1.57 3.8 • 98 84.6 6.2 1*51 7.7 l .17 1 1C 6 LI 07

LI 18 69.5 1.6 .65 3.3 .86 80.7 2. 3 .56 5.7 .86 1 ID e LI 18

LI 22 67.5 -.3 -.11 3. 8 .97 75.2 -3.2 -.77 5.8 .88 IIP 0 LI 22

LI 26 65.0 -2.6 -1.12 2.8 .73 77.6 -.8 -.19 5. 2 • 80 1 ID 0 LI 28

LI 4

1

68.8 1.0 .39 3.4 . 88 84.1 5.8 1 .39 8.1 i .23 1 ID 0 LI 41

LI 46 69.9 2.1 .83 2.7 .70 80.1 1.8 .43 3.5 .53 1 ID 6 LI 48

LI 59 63.8 -4.0 -1.59 3.3 • 84 76.3 -2.0 -.49 4.4 .67 1 ID 0 LI 59

LI 70 68.9 1.1 .44 3.0 .78 71.9 -6. 5 -1.57 4.3 .65 1 1C 0 LI 70

LI 74 68.7 .9 .36 3.7 .94 78.3 -. 1 -. C3 8.8 l .35 11D G LI 74

LI 76 69.2 1 .4 .55 3.1 • 80 68.9 -9.5 -2.30 6.7 l .02 1 ID * LI 76

LI 6 2 66.7 -1 .2 -.46 4.0 1.02 75.3 -3.0 -.74 7.7 l .17 11D G LI 82 L218 67.0 -.8 -.31 4.2 1.08 79.8 1.4 .34 6.3 .96 1 ID e L218

L232 69.0 1.1 .45 3.0 .78 80.6 2.2 • 54 1 0.6 l .60 11C e L2 32

L2 37A 69.1 1.3 .52 1.6 .41 79.5 1.2 .28 2.6 .40 1 1C G L237A

L237B 68.6 .8 .31 1.9 • 48 83.8 5.4 1.31 2.4 .37 UC 0 L237B

L23 6A 67.9 .1 .04 4.0 1.03 81 .7 3. 3 .60 9.7 l .48 1 ID G L2 38A

L243 68.5 .7 .28 3.2 .82 78.7 • 3 • 07 5.8 • 88 1 1C 0 L243

L248 62.3 -5.S -2.16 3.4 • 88 68.7 -9.6 -2.2 3 6.2 .95 1 IE 0 L2 48

L273 70.5 2.6 1.05 5.6 1 .43 79.1 • 6 .18 4. 1 .62 1 1C G L2 73 L279 66.3 -1.5 -.60 2.1 . 53 77.7 -•6 -.15 4.0 .61 11C 0 L279

L280 69.8 2.0 .78 3.4 . 86 79.8 1.4 .24 8.6 l .30 1 ID 0 L280

L294 66.4 -1.4 -.56 4.0 1.03 89.4 11.0 2.67 1 0.7 l .63 1 IC * L294

L303 66.5 -1.3 -.52 2.8 . 73 73.0 -5.4 -1.31 6. 4 .98 UC G L303

L331 70.7 2.9 1.15 4.9 1.25 80.2 1.8 • 44 8.4 l .28 1 1C G L3 31 L333 62.9 -4.9 -1.93 1 0.9 2.81 74.5 -3.9 -.95 12.3 l .87 1 1C 0 L333

L334 68.3 .5 . 19 3.5 .90 79,1 .7 .18 5.6 .85 1 ID G L334

L344 71.4 3.6 1.43 3.5 .90 66.1 7.7 1 .87 7.1 l • 08 1 1C 0 L344

L356 65.9 -2.0 -.77 5.0 1.29 75.9 -2. 5 -.61 8.4 l .28 1 1C 0 L356

L362 63.0 -4.8 -1.91 3.1 . 81 74.7 -3.7 -.90 5.0 .76 1 ID G L362

L378 68.7 .9 .36 3.6 .91 76.0 -2.4 -.57 6.0 l • 22 1 ID 6 L378

L392 62.7 -5.1 -2.01 5.2 1 .35 76.9 -1 .

5

-.36 6.6 l .01 1 1C G L392

L56 5 69. 1 1 .3 .52 2.6 .67 83.7 5.3 1.28 6. 1 .93 1 ID G L565

L567 68.3 .5 .20 4.2 1.08 77.2 -1.2 -.28 7.0 l . 06 1 ID G L567

L575 71.4 3. £ 1 .41 7.8 2.01 79.8 1 • 4 . 34 9.3 l .41 1 ID G L575

GR. MEAN - 67. 8 PSI GRAND MEAN • 78.4 PSI TEST DETERMINATIONS - 15

SD MEANS - 2.5 PSI SD 6F MEANS - 4.1 PSI 35 LABS IN GRAND MEANS

AVERAGE SDR - 3.9 PSI AVERAGE SDR - 6.6 PSI GR • MEAN - 467.6 KILGPASCAL GRAND MEAN - 540.4 KILGPASCAL

L242 71.2 3.4 1.33 2.9 .74 80.2 1 .

8

.43 8.8 1 .34 1 IT L242 L250L 67.7 -.2 06 3.7 • 96 72.5 -5.9 -1.42 6.8 1 .03 1 IN • L250L

L251 62.2 -5.6 -2.22 2. 1 . 54 73.6 -4.8 -1.16 3.4 .52 11 V L251

L27 4 69.1 1.3 .52 2.3 . 59 80.1 1 .

8

.43 3.8 .57 1 1H L274

L29 0 71.2 3.4 1.34 3.8 .97 83.3 4.9 1.18 5.2 .78 1 1A L290

L393 68.7 .8 .33 3.5 .90 81.3 3. 0 .72 4.9 .75 1 IB . L393

L394 80.0 12.2 4.82 2.2 . 56 86.3 8. 0 1 .93 8.9 1 .35 1 1H L3 94 L570 73. 7 5.8 2.31 2.7 .70 85.7 7.3 1.77 8.3 1 .26 1 1H L570

L576 69.7 1.9 .76 3.8 .97 83.5 5.1 1.23 5.5 .84 IIP L576

L59 3 84.2 16.4 6.48 3.0 .77 97.5 19.2 4.64 7.5 1 .14 1 1 J L593 TOTAL NUMBER OF LABORATORIES REPORTING - 46

Best Values: E24 68+5 psi

H08 78+6 psi The following laboratories were omitted from the grand means because of extreme test results: 294.

11
HE P0RT N6. 49S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS Tll-1 TABLE 2 BURSTING STRENGTB, HIGH RANGE, PSI TAPPI STANDARD 1403 OS-76, BURSTING STRENGTH OF PAPER - PERKINS

LAB MEANS COORDINATES

CODE F E24 HO0 MAJOR MINOS

L2 51 62,2 73.6 -6.7 3.2 L240 O 62.3 68.7 -11.0 1.1 L392 O 62.7 76.9 -3.4 4.1

L3 33 o 62.9 74.5 -5.5 2.9 L362 0 63.0 74.7 -5.3 2.9

LI 59 0 63.0 76.3 -3.5 2.9

LI 28 0 65.0 77.6 -1 .8 2.3

L356 0 65.9 75.9 -3.1 .8 L279 0 66. 3 77.7 -1.2 1.1 L294 * 66.4 09 .4 9.5 5.7 L303 0 66.

5

73.0 -5.5 -1.0

LI 02 0 66.7 75.3 -3.2 -.2 L210 0 67.0 79.0 1.0 1.3

LI 2 2 0 67.5 75.2 -3.0 -1.0

LI 03 o 67.6 03.7 4.8 2.3 L250L 67.7 72.5 -5.4 -2.2

L2 3 0A 0 67.9 01.7 3.1 1.2

LI 0 0 0 60.0 00.0 1.6 .5

L2 34 e 60.3 79.1 .9 -.1 L567 0 60.3 77.2 -.9 -.9

L243 e 60.5 70.7 .6 -.5 L237B 0 60.6 03.0 5.3 1.5 L393 60.7 01.3 3.1 . 4 L370 0 60.7 76.0 -1 .8 -1.8

LI 74 o 60.7 70.3 .3 -.9

LI 4

1

0 60.0 84.1 5.7 1 .4

LI 70 0 60.9 71.9 -5.5 -3.6

L232 o 69.0 00.6 2 .5 -.2 L565 0 69. 1 83.7 5.4 .9 L274 69.1 80.1 2.1 -.5

L2 37A 0 69.1 79.5 1 .6 -.7

LI 76 « 69.2 60. 9 -8.1 -5.1

LI 10 0 69. 5 00.7 2.8 -.6

L57 6 69.7 83.5 5.4 .3 L20 0 0 69.0 79.8 2.1 -1.3

LI 40 o 69.9 00.1 2.5 -1.2

L273 0 70.5 79.1 1 .

8

-2.1

L331 0 70.7 00.2 2.8 -1.9

L242 71.2 80.2 3.0 -2.4

L290 71.2 03.3 5.8 -1.1

L57 5 0 71.4 79. 8 2.7 -2.7

L3 44 0 71.4 86.1 8.5 -.2

LI 07 o 71.0 84.6 7.3 -1 . 1 L57 0 73. 7 85.7 9.0 -2.4

L394 00.0 06.3 12.2 -8.0

L59 3 04.2 97.5 24.1 -7.3

GMEANS: 67. 0 70.4

95% ELLIPSE: 11.5 5.1

AVG

R. SDR VAR PROPERTY— -TEST INSTRUMENT--'

. 53 11V BURSTING STRENGTH 40 - 1 00 PSI

• 91 HE BURSTING STRENGTH 40 - 1 00 PSI 1.18 lie BURSTING STRENGTH 40 - 100 PSI 2.34 uc BURSTING STRENGTH 40 - 1 00 PSI .78 11 D BURSTING STRENGTH 40 - 100 PSI

.75 110 BURSTING STRENGTH 40 - 1 00 PSI

.76 110 BURSTING STRENGTH 40 - 100 PSI 1.28 lie BURSTING STRENGTH 40 - 100 PSI

• 57 lie BURSTING STRENGTH 40 - 100 PSI

1 .33 lie BURSTING STRENGTH 40 - ICO PSI

. 05 lie BURSTING STRENGTH 40 - ICO PSI 1.10 1 1 D BURSTING STRENGTH 40 - ICO PSI 1.02 110 BURSTING STRENGTH 40 - 1 CO PSI

.93 11F BURSTING STRENGTH 40 - 100 PSI

• 89 lie BURSTING STRENGTH 40 - 100 PSI

1.00 11N BURSTING STRENGTH 40 • 100 PSI 1.25 11 D BURSTING STRENGTH 40 - 1 00 PSI

1.16 110 BURSTING STRENGTH 40 - 100 PSI

.87 110 BURSTING STRENGTH 40 - 1 00 PSI 1.07 110 BURSTING STRENGTH 40 100 PSI

.85 lie BURSTING STRENGTH 40 . 1 00 PSI

.43 lie BURSTING STRENGTH 40 - 100 PSI

• 82 1 1 H BURSTING STRENGTH 40 - 100 PSI 1.07 110 BURSTING STRENGTH 40 - 1 00 PSI 1.14 11D BURSTING STRENGTH 40 - 1 00 PSI 1.05 11 D BURSTING STRENGTH 40 . 1 00 PSI

.72 lie BURSTING STRENGTH 40 - 1 00 PSI

1 .19 lie BURSTING STRENGTH 40 - 100 PSI

.80 110 BURSTING STRENGTH 40 - 1 00 PSI .58 11 H BURSTING STRENGTH 40 - 100 PSI

.40 11C BURSTING STRENGTH 40 . 1 00 PSI

.91 110 BURSTING STRENGTH 40 - 1 00 PSI

.86 11D BURSTING STRENGTH 40 - 1 00 PSI

.90 IIP BURSTING STRENGTH 40 - 1 00 PSI

1 .08 110 BURSTING STRENGTH 40 - 1 00 PSI

• 62 1 1 0 BURSTING STRENGTH 40 - 1 00 PSI 1.02 1 1C BURSTING STRENGTH 40 - 100 PSI

1 .27 lie BURSTING STRENGTH 40 - 100 PSI 1.04 1 1 T BURSTING STRENGTH 40 - 100 PSI

. 88 1 1A BURSTING STRENGTH 40 - 100 PSI

1.71 110 BURSTING STRENGTH 40 . 1 00 PSI .99 lie BURSTING STRENGTH 40 - 1 00 PSI 1.07 lie BURSTING STRENGTH 40 - 100 PSI

• 98 11 H BURSTING STRENGTH 40 - 1 00 PSI

.96 11 B BURSTING STRENGTH 40 - 100 PSI

.96 11 J BURSTING STRENGTH 40 - 1 00 PSI

1 .00 WITH GAMMA - 66 DEGREES

MODEL C OR C-A

CONDITIONS

L^W, MANUAL CLAMP, 20C,65% RH PERKINS C, MANUAL CLAMP

PERKINS C. MANUAL CLAMP PERKINS C, MANUAL CLAMP

PERKINS CA, AIR CLAMP PERKINS CA, AIR CLAMP

PERKINS CA, AIR CLAMP

PERKINS C, MANUAL CLAMP PERKINS C, MANUAL CLAMP PERKINS C, MANUAL CLAMP PERKINS C, MANUAL CLAMP PERKINS CA, AIR CLAMP

PERKINS CA, AIR CLAMP

PERKINS C. H. CLAMP, TRANSDUCER

PERKINS C, MANUAL CLAMP

LHOMARGY, MAN. CLAMP, 20C,65%RE

PERKINS CA. AIR CLAMP

PERKINS CA, AIR CLAMP

PERKINS CA, AIR CLAMP

PERKINS CA, AIR CLAMP

PERKINS C, MANUAL CLAMP PERKINS C, MANUAL CLAMP

PERKINS AH, HYDRAULIC CLAMP

PERKINS CA, AIR CLAMP PERKINS CA, AIR CLAMP PERKINS CA, AIR CLAMP

PERKINS C, MANUAL CLAMP PERKINS C, MANUAL CLAMP PERKINS CA, AIR CLAMP PERKINS AH, HYDRAULIC CLAMP

PERKINS C, MANUAL CLAMP

PERKINS CA, AIR CLAMP

PERKINS CA, AIR CLAMP

PERKINS LC, MANUAL CLAMP PERKINS CA, AIR CLAMP

PERKINS CA, AIR CLAMP

PERKINS C, MANUAL CLAMP PERKINS C. MANUAL CLAMP

L+W , MANUAL CLAMP PERKINS A, MANUAL CLAMP

PERKINS CA, AIR CLAMP

PERKINS C, MANUAL CLAMP PERKINS C, MANUAL CLAMP PERKINS AH, HYDRAULIC CLAMP

PERKINS AH, HYDRAULIC CLAMP

PERKINS JUMBO, HAND DRIVEN

12
KIL0PRSCRL

440

460

480

500

520

540

560

580

600

620

640

BURSTING STRENGTH, HIGH RRNGE

SAMPLE E24 = 67.8 PSI SAMPLE H08 = 78.4 PSI

SAMPLE E24 = 468 K I L0PASCAL SAMPLE H08 = 540 K I L0PASCAL

360 380 400 420 440 460 480 500 520 540 560

KIL0PRSCRL

13
REP0RT N6. 49£ TAPPI C0LLAB0KATI VE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS 715-1 TABLE 1 TEARING STRENGTH, GRAMS

TAPPI STANDARD 1414 TS-65, ANY MAKE ELMEND0RF WITH DEEP CDT0DT IS STANDARD FOR THIS ANALYSIS

SAMPLE BROWN KRAFT

LAB E0£ 74 GRAMS PEfl SQUARE METER

C0DE BEAN DEV N. DEV SDR R. SDR

LI 0 0 60.4 -2.6 -.94 2.0 . 92

LI 03 62.7 -.3 -.10 1.6 .74

LI 07 15.7 -47.3 - 17.38 .7 .34

LI 1 5 59.8 -3. 1 -1.14 1.4 .67

LI 1 0 62.

1

-. e - .30 2.0 .91

LI 21 60 .

5

-2.4 -.89 2.1 . 96

LI 22 59.7 -3.3 -1.20 2.3 1 • 09

LI 2

4

62.0 -.9 -.35 2.6 1.22

LI 26 63.1 .2 .07 1.6 .76

LI 28 61.7 -1 .3 - .47 1.7 .78

LI 34 65.9 2.9 1.07 2.0 .91

LI 39 65.2 2.3 .83 2.6 1.19

LI 41 62.9 -.0 -.00 1.6 .73

LI 48 64.0 1.1 .39 3.0 1.40

LI 50 59.6 -3.3 -1 .23 1.9 .89

LI 51 78. 8 IS.

9

5.83 4.0 1 . 88

LI 53 62.0 -.9 -.35 2.1 .96

LI 57 61.8 -1.1 -.42 2.5 1.14

LI 58 62.8 -.1 -.05 3.7 1.71

LI 59 68.4 5.5 2.01 4.6 2.12

LI 6 2 63.3 .3 .12 1.8 .81

LI 63 64.3 1 .3 .49 2.7 1.26

LI 66 63.7 .7 .27 1.4 .67

LI 67 64.5 1.6 .58 1.2 . 55

LI 70 61.9 -1.0 -.37 2.2 1. 02

L17 3B 59.6 -3.3 -1.23 1.1 .52

LI 74 S 64.3 1 .

3

.49 3.8 1.79

LI 76 61.3 -1.6 -.59 2.2 1.03

LI 82 A 64.3 1.3 .49 3.1 1.44 L182T 62.8 -.1 -.05 1.9 . 88

LI 83 60.9 -2. 1 -.76 1.3 .60

LI 85 61 .

1

-1.8 -.67 1.8 .86

LI 89 61.1 -1.8 -.67 1.3 .60

LI 9 OC 63.5 .5 .19 1.4 .65 L190R 61.1 -1.8 -.67 1.7 • 80

LI 91 66.4 3.5 1.27 1.5 .72

LI 94 65.1 2.1 .78 3.0 1.40

LI 9 5 62.4 -.5 -.20 1.9 • 69 L206 62 • 0 -1.0 -.36 2.3 1 . 05 L207 62.7 -.3 -.10 2. 1 . 97

L21 3 61.9 -1 . 1 -.40 2.2 1.01

L21 7 63.4 .5 .17 1.9 .87 L223 63.4 .5 .18 2.0 .95 L224 59.8 -3.1 -1.16 1.5 .71 L22 5 67.3 4.3 1.59 1.0 • 48 L226B 65.6 2.7 .98 2.9 1 .37

L22 6C 58.4 -4.5 -1.67 2.2 1.01

L22 8 60.3 -2.7 -.98 1.7 .77 L232 69.2 6.3 2.30 9.1 4. 22 L236 58.8 -4.1 -1.52 3.5 1.64 L237A 60.7 -2.3 -.84 1.6 .76 L237B 62.8 -.1 -.05 2.1 .98 L238A 56.1 -6.8 -2.50 2.1 .96

L241 66.7 3.7 1 .37 2.0 .92 L243 62.9 -.1 -.03 2.5 1.16 L244 63.

8

.9 .32 1 .4 • 64

L24 8 63.8 .9 .31 1.7 .79 L249 61 .

1

-1.8 -.68 1.1 .53

L254 62.9 -.1 -.03 1.8 . 82 L255 62.7 -.2 -.08 2.3 1.05 L257A 62.8 -.1 -.05 2.4 1.10 L257E 63.2 3 .09 2.2 1 .04

L2 57C 62.3 -.7 -.25 1.5 .69

L2 59 62.7 -.3 -.10 2.2 1.00

L261 61 .6 -1,3 -.49 2.2 1.01

SAMPLE

B03 89 GRAMS

PRINTING

PER SQUARE METER TEST D. 1 15 MEAN DEV N.DEV SDR R. SDR VAR F LAB

63 .3 -.9 -.29 2.1 1 .07 15M e LI 00 62.3 -2.0 -.65 1.6 . 83 15T 0 LI 03 15.1 -49.2 - 16.10 .6 .30 15T u LI 07 57.7 -6.6 -2.15 1.8 .94 15C e LI 15 63.2 -1 .

0

-.34 2. 1 1.10 1ST 0 LI 18

62.5 -1.7 -.56 1.8 .90 15T e LI 21 60.3 -3.9 -1.28 1.8 .93 1 5C 0 LI 22 62.8 -1.4 -.47 2.4 1.21 1 5T 0 LI 24 63.9 -.4 -.12 1.9 • 98 15T 0 LI 26 62.9 -1.3 -.43 1.8 .92 15T 0 LI 28

69.5 5.2 1.71 1.7 .86 15T 0 LI 34 67.1 2. 8 .93 1.8 .92 15T 0 LI 39 63.1 -1 . 1 -.36 1.4 .69 . 15T 0 LI 41 57.1 -7.2 -2.35 2.4 1.21 1ST X LI 48 61.5 -2.7 -.89 1.7 .85 1 5T 0 LI 50 75.9 11.7 3. 83 2.9 1 .49 15C * LI 51 63.9 -.3 -.10 1.7 .85 1 5C 0 LI 53 63.1 -1 . 1 - • 36 1.6 .84 15T 0 LI 57 60.5 -3.7 -1.21 2.7 1 .36 15R 0 LI 58 67.2 3. 0 .97 2.4 1.21 15L 0 LI 59

64.2 -.0 -.01 1.4 .73 1 5T © LI 62 65.5 1.3 .42 1.5 .77 1 5T 0 LI 63 67.0 2.8 .90 2.2 1.14 1 5T 0 LI 66 63.7 -.5 -.17 1.0 .53 15C 0 LI 67

60.1 -4.2 -1 .37 .9 .45 15T 0 LI 70

65.1 • 8 .27 1.0 .53 15T 0 LI 73B 62.7 -1.6 -.52 2.9 1.48 15T © L174S

64.3 .0 • 01 2.7 1 .39 15T 0 LI 76 60.7 -3.5 -1.15 1.8 • 92 1 5A 0 L182A

65.2 1.0 .31 1.9 .99 1ST 0 LI 82T

61.1 -3. 1 -1 . 02 2.5 1 .27 15T 0 LI 83 61.3 -2.9 -.95 2.0 1 , 03 1 5T 0 LI 85 64.5 .3 . 1 0 1 .

8

.94 15T 0 LI 89 64.7 . 4 • 14 1.0 .53 15T 0 L190C

62.2 -2.0 -.67 1.8 .91 1 5C 0 L190R

69.5 5.2 1.71 2. 1 1 .06 1ST 0 L 1 91 64.3 . 1 .03 2.1 1 .09 15T 0 LI 94 66.5 2. 2 .73 1.5 .77 15C 0 LI 95 62.8 -1 .

4

-.47 2.7 1 .38 15R 0 L206

66.3 2.0 • 66 1.7 .85 1ST 0 L207

65.8 1.6 .51 2.6 1 .31 15T 0 L2 1 3 63.4 -.8 -.20 2.7 1.38 1 5T 0 L217

65.2 • 9 .31 1 • 1 .56 15R 0 L223

62.6 -1.6 -.54 2.1 1.09 15T 0 L224

66.6 2.4 .77 2.2 1.11 15T 0 L22 5 68.5 4.2 1 .38 2.8 1.43 15T 0 L226B

58.5 -5. 8 -1 .89 1.7 • 88 15T 0 L226C

60.5 -3.7 -1.21 2.6 1 .31 1ST 0 L228

65.7 1.5 .49 3.0 1 .54 15T * L232 58.9 -5.3 -1 .74 1.8 .94 1 5T 0 L236

62.4 -1.8 -.60 1.4 .69 1ST 0 L237A

67.6 3.4 1.10 1.7 .88 15T 0 L237B

58.7 -5.6 -1.83 1.8 .92 15T • L238A

70.3 6.0 1 .97 2.3 1.15 1ST 0 L241

65.1 .9 .29 2.5 1 .29 15T 0 L243

65.0 . 8 .25 1.3 .67 15C 0 L244

67.1 2.8 .92 1.8 .92 15J 0 L248

61 .6 -2.6 -.87 1 .9 .97 15T 0 L249

63.7 -.6 -.19 2.3 1 .15 1ST 0 L254

62.1 -2.1 -.69 1 .8 .94 1 5T 0 L255

65.9 1.6 .53 1.8 .90 15C 0 L257A 66.3 2.0 .66 2.1 1 .08 1 5C 0 L257B

65.9 1.6 .53 1 .4 .72 15C 0 L257C

64.3 . 1 .03 1 .4 .74 15T 0 L2 59 62.9 -1.4 -.45 1.8 • 94 15T L261

14
REPORT N0. 49 S TAPPI C0LLAB6RATI VE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T15-1 TABLE 1 TEARING STRENGTH* GRAMS

TAPP [ STANDARD 1414 TS-65* ANY MAKE ELMEND0BF WITH DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

SA1IPLE BROWN KRAFT

LAB 1: 05 74 GRAMS FEB SQUARE METER

CODE MEAN DEV N.DEV SDR R. SDR

L262 «>2. 3 -.6 -.22 .5 .23 L264 23.3 -39.6 - 14.56 1 .0 . 45 L265 ‘>3.2 30.3 11.12 13.0 6. 04 L268 <>6.3 3.3 1.22 2.0 .92 L273 02.9 -.0 -.00 2.5 1 . 14 L274 02.0 -.9 -. 35 1.5 .70 L27 5 05.6 2.9 1 . 05 1.8 . 83 L277 71.2 6.3 3.04 2.4 1.10

L278 05.4 2.5 .90 2.8 1. 31 L279 08.3 5.3 1 .96 2.9 1.35

L28 0 04.1 1.2 .44 2.4 1.09

L281 01.2 -1.7 -.64 2.1 . 97 L285 £4.7 -8.3 -3.04 3.9 1.81

L2 8 8 05.7 2.7 1.00 2.3 1 . 05 L290 (8.6 5. 7 2.08 2.0 .93

L29 1 0 0.7 -2.3 -.84 1.8 . 64 L299 03.0 .1 .02 2.1 .99

L301 04.4 1.5 .54 2.1 .99

L30 3 03.4 .5 .17 2.0 .91 L30 5 61.3 -1.7 -.62 1.3 .62 L309 61.2 -1.7 -.64 2.0 .93

L311 63.6 .7 .24 2.5 1.17

L312 63.9 .9 .34 2.1 .96 L315 65.3 2.4 .88 3.8 1.75

L321 56.8 -6.1 -2.26 1.6 .73

L328 59.5 -3.5 -1.28 1.8 . 83 L331 62.2 -.7 -.25 3.0 1 . 39 L334 56.3 -6.6 -2.43 2.4 1.11 L336 57. 0 -5.9 -2.18 2.1 .99 L344 67.6 4.7 1.71 2.7 1.28 L345 64.5 1.6 .58 4.7 2.20

L352 62.7 -.3 -.10 2.1 .99 L36 0 62.3 -.7 -.25 3.1 1 .43 L36 2 61.8 -1 .

1

-.42 1.5 .68 L376 65.7 2.6 1 . 03 2.8 1 . 31

L37 8 68.5 5.5 2.03 3.0 1.39

L382 64.9 2.0 .73 2.2 1.00

L39 0 61 .7 -1.2 -.44 6.7 3.10

L392 62.8 -. 1 -.05 1.6 .75 L396M 62.4 -.5 -.20 1.5 .72 L484 68.3 5.3 1 .96 1.7 .77

L56 5 61.2 -1 .7 -.64 2.5 1.17 L567 61.9 -1.1 -.40 2.2 1.02 L575 63. e .9 .32 1.3 .62

L57 6 64.8 1 .9 .68 1.5 .71

L5 8 0 61 .

5

-1.5 -.54 2.1 .96 L58

1

66.4 3.5 1 .29 1.7 .79 L587 59.6 -3.3 -1.23 2.2 1.01 L596 78.9 16.0 5.88 5. 1 2.38

L599 62.3 -.7 -.25 1.7 . 79

GR. MEAN - 62.9 GKAMS GRAND MEAN

SD MEANS • 2.7 GRAMS SD OF MEANS

AVERAGE SDR - 2.2 GRAMS

GR. MEAN - 617.3 MILL I NEW TON GRAND MEAN

L21 1 60.9 -2.0 -.74 2.0 • 92 L23 0 60.0 -2.9 -1 .08 2.1 .99

L24 2 63. e .9 .32 1.9 .90

L2 50L 79.8 16.9 6.20 3.9 1.83

L251 67.8 4.9 1.79 2.7 1.27

L531 66.4 3.5 1.27 7.2 3.33

L61 0 64. 1 1 .2 .44 3.2 1 . 51 TOTAL NUMBER OF LABORATORIES REPORTING - 122

Best Values: E05 63+5 grams

H03 64 + 5 grams

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

265, 285, 596.

SAMPLE H03 PRINTING

69 GRAMS PER SQUARE METER TEST D. 115

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

67.5 3.2 1 • 06 • 8 .43 15T 0 L262

17.5 -46.7 -15.30 .6 .33 15T t* L264 96.5 32.3 1 0.57 10.6 5.43 15T * L265

66.9 2.6 .86 2.2 1.14 1 5T 0 L268

63.4 -.8 -.28 1.4 .72 15T e L273

62.9 -1.3 -.43 2.0 1.01 15T e L274

69.2 5. 0 1 .62 2.1 1.06 15T 0 L275

69.6 5. 4 1.75 1.9 .96 15T * L277 68.6 4.4 1.43 2.2 1.11 15T 0 L278 68.0 3.8 1.23 2.8 1 .45 15T 0 L279

64.1 -. 1 -.04 2.1 1 .07 1 5L 0 L280

62.1 -2. 1 -.69 2.0 1 .02 15T 0 L281 46.5 -17.7 -5.80 2.9 1.47 1 5T tt L285

66.4 2.2 .71 1.8 .90 15Q 0 L2 86 73.2 9.0 2.93 2.0 1 . 04 15T * L290

62.4 -1 .

8

-.60 1.1 .57 15A 0 L291 65.1 .9 • 29 2.3 1.17 15T 0 L299

65.6 1 • 4 .44 2.2 1.11 15Q 0 L30

1

66.8 2.6 .84 2.3 1.19 15L 0 L303

60.7 -3.5 -1.15 1.7 .85 15T 0 L305

61.0 -3.2 -1.06 2.3 1 .16 15T 0 L3 09

61 .6 -2.6 -.87 1.5 .79 15T 0 L311 68.5 4.2 1.38 3.3 1.70 1 5T 0 L312

69.6 5.4 1 .75 1.5 .77 15T 0 L315

57.8 -6.4 -2.11 • 6 .29 15T 0 L321 62.6 -1.6 -.54 1.5 .77 1ST 0 L328

58.7 -5.5 -1 .80 2.2 1.10 1 5T S L331 58.9 -5.3 -1.74 1.9 .96 15T 0 L334

59.7 -4.5 -1.48 2.3 1.15 1 5T 0 L336

66.5 2.2 .73 2.9 1 .48 15C 0 L344

63.1 -1 . 1 -.36 2.3 1.18 1 5T 0 L345

64.7 .5 .15 2.6 1.32 15C 0 L352 62.3 -2. 0 -.65 2.2 1.13 1 5T 0 L360

61 .4 -2.8 -.93 1.4 .69 15T 0 L362

68.7 4.4 1.45 2.2 1 .14 1ST 0 L376

66 .9 2.7 • 86 2.4 1.21 15T 0 L378

64.7 .5 .16 1.9 .99 15T 0 L382 61.5 -2. 3 -.91 1.7 .86 15T 0 L390

61 • 1 -3.2 -1.04 3.2 1 .61 15T 0 L392

64.4 • 2 .05 2.0 1 .04 15T 0 L396M

66.8 2. 6 .84 2.0 1.01 1 5T 0 L484

66.1 1 .9 .62 3.2 1.62 15T 0 L565

64.8 . 6 .18 1.5 .75 15C 0 L567

66.5 2.2 .73 1.8 .90 15L 0 L575

70.0 5. 8 1.89 2.2 1.11 15T 0 L576

62.8 -1.4 -.47 2.7 1.37 1 5T 0 L580

66.6 2. 3 .76 2. 1 1.08 15Q 0 L581 62.0 -2.2 -.73 1.7 .86 1 5T 0 L587

65.9 1 .

6

.53 3.0 1.52 15T tt L596

65.2 1.0 .31 1.6 .82 1ST 0 L599

64.2 GRAMS TEST DETERMINATIONS 15 3.1 630.0

GRAMSAVERAGE SDR MILLINEWTON108 LABS IN

- 2.0 GRAMS

GRAND MEANS

59.5 -4.8 -1.56 1.9 .98 15V L211 59.4 -4.8 -1 .58 2.4 1 . 21 15V L230

64.6 .6 .18 1.9 .99 15U L242 75.3 11.1 3.64 2.6 1 .45 15B L2 50L 69.7 5. 4 1 .78 1.5 .79 15K L251

61 .2 -3.0 -1.00 3.8 1.92 1 5E L531 70.4 6.2 2.02 1.9 .96 15E L61 0

Please see the diagram of 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. 15

Data from the following laboratories appear to be

off by a multiplicative factor: 107, 264. Data from the following laboratories appeared

to be off by a multiplicative factor: 211, 230. Code 15V was assigned temporarily to put in a factor of 2.
REPORT NO. 4'1S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T15-1 TABLE 2 TEARING STRENGTH, GRAMS

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

LAB MEANS COORDINATES AVG

C0DE F E05 H03 MAJOR MINOR £• SDfi VAR PR0PER1Y— -1EST INSTRUMENT- --CONDITIONS

LI 07 ft 15.7 15.1 -68. 1 3.8 .32 15T 1EARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE T6 100 ) L2 64 ft 23.3 17.5 -61.2 -.4 .39 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L285 ft 54 .

7

46.5 -18.8 -5.3 1 .64 15T TEARING STRENGTH, STANDARD, TH WING- EL MEND 0RF( SCALE TO 100 ) L238A * 56. 1 58.7 -8.7 1 .5 .94 1ST TEARING STRENGTH, STANDARD, THW ING-ELMENDORF! SCALE T0 100 ) L334 e 56.3 58.9 -8.3 1 .6 1 .03 15T TEARING STRENGTH, STANDARD, THW I NG-ELMEND0HF( SCALE TO 100 >

L321 e 56. « 57.8 -8.9 .5 .51 15T TEARING STRENGTH, STANDARD, THW ING-ELMENDORF! SCALE TO 100 ) L33 6 o 57.0 59.7 -7.3 1.6 1.07 151 TEARING STRENGTH, STANDARD, TBW ING-ELMENDORF! SCALE TO 100 ) L226C e 58.4 58.5 -7.3 -.3 .94 15T TEARING STRENGTH, STANDARD, THW ING- EL MEND 0RF( SCALE TO 100 ) L236 0 58.8 58.9 -6.7 -.3 1.29 1ST TEARING STRENGTH, STANDARD, THW ING-ELMEND0RF( SCALE TO 100 ) L328 0 59.5 62. 6 -3.5 1 .6 .80 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 )

L587 0 59.6 62.0 -3.9 l.l .93 15T TEARING STRENGTH, STANDARD, THW I NG-EL MEND0RF< SCALE TO 100 ) LI 73B 0 59.6 65.1 -1.6 3.1 .52 15T TEARING STRENGTH, STANDARD, THWI NG-EL MENDORP! SCALE TO 100 ) LI 50 0 59.6 61.5 -4.2 .8 .87 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 ) LI 22 0 59.7 60.3 -5. 1 -.1 1.01 15C TEARING STRENGTH, STANDARD, THW I NG -ELMENDORF ( W. AIR CLAMP)

L224 0 59.8 62.6 -3.3 1.3 .90 15T TEARING STRENGTH, STANDARD, THW ING-ELMENDORF! SCALE TO 100 )

LI 1 5 0 59.8 57.7 -7.0 -1.9 .80 15C TEARING STRENGTH, STANDARD, THW I NG -ELMENDORF ( W. AIR CLAMP ) L230 60.0 59.4 -5.6 -.9 1.10 15V TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO ioo ixa L228 0 60.3 60.5 -4.6 -.4 1.04 1ST TEARING STRENGTH, STANDARD, THW ING- ELMENDORF! SCALE TO 100 ) L100 0 60.4 63. 3 -2.3 1.4 1.00 15M TEARING STRENGTH, STANDARD, T . M . M I RF IE LD( AP PITA- ELMENDORF ) LI 21 0 60.5 62.5 -2.9 .7 .93 15T TEARING STRENGTH, STANDARD, THW I NG-ELMEND0RF( SCALE TO 100 )

L29 1 0 60.7 62.4 -2.9 . 5 .70 15A TEARING STRENGTH, STANDARD, APPITA

L2 37A 0 60.7 62.4 -2.9 .5 .72 15T TEARING STRENGTH, STANDARD, THW ING-EL MEND0RF( SCALE TO 100 ) LI 83 0 6C.9 61.1 -3.7 - .5 .93 15T TEARING STRENGTH, STANDARD, THW ING-ELMENDORF! SCALE TO 100 ) L21 1 60.9 59.5 -4.9 -1.6 .95 15V TEARING STRENGTH. STANDARD, THW ING-ELMEND0RF< SCALE TO 100 >X2 L249 0 61 .

1

61 .6 -3.2 -.3 .75 151 TEARING STRENGTH. STANDARD, THW ING-ELMEND0RF( SCALE TO 100 ) L190R 0 61 .

1

62.2 -2.7 .0 .86 15C TEARING STRENGTH, STANDARD, TH WI NG-ELMEND0RF ! W. AIR! CLAMP

)

LI 89 0 61.1 64.5 -1 .0 1.6 .77 1ST TEARING STRENGTH. STANDARD. THW I NG-ELMEND0RF( SCALE TO 100 ) LI 8 5 0 61.

1

61.3 -3.4 -.5 .95 15T TEARING STRENGTH, STANDARD, THW ING-ELMEND0RF( SCALE TO 100 ) L565 0 61.2 66.1 .3 2.6 1 .39 151 TEARING STRENGTH. STANDARD, THW ING-ELMENDORF( SCALE TO 100 ) L3 09 0 61.2 61.0 -3.6 -.8 1 .05 151 TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 )

L281 0 61.2 62.1 -2.7 -.1 1.00 151 TEARING STRENGTH, STANDARD , TH W I NG-EL MEND 0HF( SCALE TO 100 ) L305 0 61.3 60.7 -3.8 -1.0 .74 151 TEARING STRENGTH. STANDARD , THW ING-ELMEND0RF< SCALE TO 100 ) LI 76 0 61 .

3

64.3 -1 .

0

1.2 1.21 151 TEARING STRENGTH, STANDARD, TH W I NG- EL MEND0 RF< SCALE TO 100 ) L580 0 61 .

5

62.8 -2.1 • 2 1 .16 1 51 TEARING STRENGTH, STANDARD , T B W I NG-EL MEND 0RF( SCALE TO 100 ) L261 0 61.6 62.9 -1 .9 • 1 .97 15T TEARING STRENGTH, STANDARD, TH W ING-EL MENDORF! SCALE TO 100 >

LI 2 8 0 61.7 62.9 -1 .

8

• 1 .85 15T TEARING STRENGTH. STANDARD, THWING-ELMENDORF! SCALE TO ICO ) L39 0 0 61.7 61.5 -2.9 -.9 1 .99 151 TEARING STRENGTH. STANDARD, THW I NG-ELMEND0RFC SCALE TO 100 > L36 2 0 61.8 61.4 -2.9 -1.0 .69 151 TEARING STRENGTH, STANDARD, THW ING-ELMENDORF! SCALE TO 100)

LI 57 0 61.8 63.1 -1.6 • 1 .99 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L567 0 61.9 64.8 -.3 1.2 .89 15C TEARING STRENGTH, STANDARD, THWI NG-ELMENDORF ( W. AIR CLAMP

)

L21 3 0 61.9 65. 8 .5 1.8 1.16 1ST TEARING STRE NGTH, STAND \RD. THWI NG-EL MENDORF! SCALE TO 100 ) LI 7 0 0 61.9 60.1 -3.8 -2.0 .73 1ST TEARING STRENGTH. STANDARD, THWING-ELMEND0RFC SCALE TO 100 ) L2 0 6 0 62.0 62.8 -1 .7 -.2 1.22 1 SR TEARING STRENGTH. STANDARD, THWI NG-EL MENDORF, DIGITAL READOUT

LI 53 0 62.0 63« 9 -.8 .5 .91 15C TEARING STRENGTH, STANDARD, TH W I NG-ELMEN DO RF (W. AIR: CLAMP)

L274 0 62.0 62.9 -1 .6 -.1 .86 1ST TEARING STRENGTH. STANDARD, TH W I NG-EL MEND0RF( SCALE TO 100 )

LI 2 4 0 62. 0 62.8 -1.7 - .2 1.21 151 TEARING STRENGTH, STANDARD, THW ING -ELMENDORF! SCALE TO 100 ) LI 1 8 0 62. 1 63.2 -1.3 -.1 1 .00 15T TEARING STRENGTH, STANDARD, THW I NG- EL MENDORFI SCALE TO 100 ) L331 S 62. 2 58.7 -4.6 -3.1 1.24 15T TEARING STRENGTH, STANDARD, THW ING- ELMENDORF! SCALE TO ICO ) L599 0 62.3 65.2 .3 1.1 • 81 15T TEARING STRENGTH, STANDARD, THW ING-EL MENDORF! SCALE TO 100)

L360 0 62.3 62.3 -1.9 -.8 1 .28 1ST TEARING STRENGTH, STANDARD, THW I NG-EL MENDORF! SCALE TO 1 00 )

L2 57C 0 62.3 65.9 .8 1 .6 .70 15C TEARING STRENGTH, STANDARD. THW I NG-ELMENDORF (W. AIR CLAMP

)

L262 0 62.3 67.5 2.0 2.6 .33 151 TEARING STRENGTH, STANDARD. THW I NG-EL MENDORF! SCALE TO 100 ) L396M 0 62.4 64.4 -.2 .5 .88 1ST TEARING STRENGTH, STANDARD. THWING-ELMENDORF! SCALE TO 100 ) LI 9 5 0 62.4 66.5 1 .3 1.9 .83 15C TEAR ING STRENGTH, STANDARD, THWING-ELMENDORF !W. AIR CLAMP ) L352 0 62.7 64.7 • 2 .5 1.15 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF IW. AIR CLAMP

)

L20 7 0 62.7 66.3 1.4 1.5 .91 151 TEARING STRENGTH, STANDARD, THW I NG-ELMENDORF! SCALE TO 100 ) LI 0 3 6 62.7 62.3 -1.7 -1.1 .78 1ST TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L2 59 0 62.7 64.3 -. 1 .3 . 87 1 5T TEARING STRENGTH. STANDARD, THWING-ELMENDORF! SCALE TO 1 00 ) L2 55 0 62.7 62.1 -1 .

7

-1.2 .99 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 ) L392 0 62.8 61.1 -2.5 -2.0 1.18 151 TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100)

LI 82 T 0 62.8 65.2 .6 .7 .93 1ST TEARING STRENGTH, STANDARD, THW I NG-EL MENDORF! SCALE TO 1 00 ) L2 57A 0 62. 8 65.9 1 .1 1.2 1.00 15C TEARING STRENGTH, STANDARD, THWING-ELMENDORF !W. AIR CLAMP

)

LI 58 0 62.8 60.5 -2.9 -2.3 1.54 1 5 R TEARING STRENGTH, STANDARD, THWING-ELMENDORF. DIGITAL READOUT

L2 37B 0 62.8 67.6 2.5 2.3 .93 15T TEARING STRENGTH, STANDARD. THWING-ELMENDORF! SCALE TO 100 ) L2 54 0 62.9 63.7 -.5 -.3 .99 151 TEARING STRENGTH, STANDARD, THWING-ELMENDORF! SCALE TO 100 )

16
REPORT NO. 49!i TAPPI COLLABORAT I VE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T1S-1 TABLE 2 TEARING STRENGTH. GRAMS

TAPPI STANDARD T414 TS-65, ANY MAKE EL MEN DO RF WITH DEEP CUTOUT IS STANDARD FOR TBIS ANALYSIS

LAB MEANS COORDINATES AVG

CADE F E05 H03 MAJOR MINOR B. SDR VAR PROPERTY— -TEST INSTRUMENT ---CONDITIONS

L243 0 62.9 65. 1 • 6 .6 1.23 15T TEARING STRENGTH, STANDARD. THWING-ELMENDORF( SCALE TO 100 ) LI 41 0 62.9 63.1 -.8 -.7 • 71 1 5 T TEARING STRENGTH, STANDARD. THW I NG-EL MEN D0RP1 SCALE TO 100 ) L273 0 62.9 63.4 -.6 -.5 .93 15T TEARING STRENGTH, STANDARD. THW I NG-ELMENDORF< SCALE TO 100 ) L299 6 63.0 65. 1 .7 .5 1.08 1 5 T TEARING STRENGTH, STANDARD. THWING-ELMENDORF< SCALE TO 100)

LI 2

6

0 63. 1 63.9 -.2 -.4 .67 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO i oo >

L2 57B 0 63.2 66.3 1.7 1.1 1.06 15C TEARING STRENGTH, STANDARD. THW I NO-ELMENDORF ( W. AIR: CLAMP

)

LI 62 0 63. 3 64. 2 .2 -.3 .77 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF( SCALE TO 100 ) L217 0 63.4 63. 4 -.3 -.9 1.13 15T TEARING STRENGTH, STANDARD, THW ING-ELMENDORF< SCALE TO 100 ) L3 03 0 63.4 66. 8 2.2 1.3 1 .05 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L2 2 3 0 63.4 65. 2 1.0 .2 .76 1 5 R TEARING STRENGTH, STANDARD, THWING-ELMENDORF, DIGITAL READOUT

L190C 0 63.5 64.7 .7 -.1 .59 15T TEARING STRENGTH, STANDARD. TH W I NG-EL MEND0RF< SCALE T0 100)

L31 1 0 63.6 61 .6 -1 .6 -2.2 .98 15T TEARING STRENGTH, STANDARD, THW ING-EL MEND0RF< SCALE T0 100 ) LI 6 6 0 63.7 67.0 2.6 1 .2 • 91 15T TEARING STRENGTH, STANDARD, THWING-ELMENDORF< SCALE TO 100 ) L248 0 63.8 67. 1 2.7 1 .2 .86 1 5 J TEARING STRENGTH, STANDARD, L0RENTZ-WETTRES

L242 63. 8 64.8 1 .

0

-.3 .94 15U TEARING STRENGTH, STANDARD, AUSTRALIAN 0PT . CO. L575 0 63. 8 66.5 2.2 .8 .76 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L244 0 63.8 65.0 1 . 1 -.2 .65 15C TEARING STRENGTH. STANDARD, THWING-ELMENDORF <W. AIR CLAMP)

L31 2 0 63. 9 68.5 3.8 2.1 1.33 15T TEARING STRENGTH. STANDARD. THW I NG-ELMEND0RF( SCALE TO 100 ) LI 4 8 X 64.0 57. 1 -4.8 -5.5 1 .31 15T TEARING STRENGTH. STANDARD , THW ING-EL MEND0RF( SCALE TO 100 ) L61 0 64. 1 70.4 5.4 3.1 1.24 15E TEARING STRENGTH. STANDARD. THW I NG-ELMEND0RF .AMBIENT C0ND

•

L2 8 0 0 64.1 64.1 .7 -1 .0 1 .06 15L TEARING STRENGTH, STANDARD, LORENTZ-WETTRES

L174S 0 64.3 62.7 -.3 -2.0 1.63 15T TEARING STRE NGTH. STANDARD, THW ING-ELMEND0RF( SCALE TO 1 00 ) LI 63 0 64. 3 65.5 1 .8 -.2 1.01 1 5T TEARING STRENGTH. STANDARD, THW I NG- ELMEND0RF( SCALE TO ioo

>

LI 82 A 0 64. 3 60.7 -1.8 -3.3 1.16 15A TEARING STRENGTH. STANDARD, APPITA

L30 1 0 64.4 65. 6 2.0 -.2 1.05 15Q TEARING STRENGTH, STANDARD, THWING-ELMENDORF , AIR CLAMP , DIGITL

LI 67 0 64.5 63.7 .7 -1 .5 . 54 15C TEARING STRENGTH. STANDARD, THWING-ELMENDORF (W. AIR CLAMP)

L34 5 0 64.5 63.1 .2 -1 .9 1.69 1ST TEARING STRENGTH. STANDARD, THW I NG-EL MEND0RFC SCALE TO 100 ) L57 6 0 64.8 70.0 5.6 2.3 .91 15T TEARING STRENGTH, STANDARD, THW I NG-ELMEND0RF( SCALE T© 100 ) L382 0 64.9 64.7 1 .7 -1 .2 1.00 15T TEARING STRENGTH, STANDARD, THW ING-ELMEND0RF< SCALE TO 100 ) LI 9 4 0 65.1 64.3 1.5 -1.6 1.24 15T TEARING STRENGTH. STANDARD, THWING-ELMEND0RF( SCALE TO 1 00 )

LI 39 0 65.2 67.1 3.6 .1 1.05 1ST TEARING STRE NGTH, STANDARD, TH W I NG-EL MEND0RF( SCALE TO 100 ) L31 5 0 65.3 69.6 5.6 1 .7 1.26 15T TEARING STRENGTH, STANDARD, THW ING-ELMEND0RF( SCALE TO 100 ) L2 7 8 0 65.4 68. 6 4.5 1 .0 1.21 15T TEARING STRENGTH, STANDARD, THW I NG-ELMEND0RF< SCALE TO 100 ) L226B 0 65.6 68.5 4.9 .7 1.40 15T TEARING STRENGTH, STANDARD, THW ING-ELMEND0RF( SCALE TO 1 00 ) L2 88 0 65.7 66.4 3.4 -.7 .98 150 TEARING STRENGTH. STANDARD, TH WI NG-EL MEND0RF, AIR CLAMP , DIGITL

L37 6 0 65.7 68.7 5.2 .8 1 .22 15T TEARING STRENGTH. STANDARD. TH W I NG-ELMEND0RF( SCALE TO 100 ) L27 5 0 65.8 69.2 5.6 1.1 .94 1 5 T TEARING STRENGTH. STANDARD, THWING-ELMEND0RF< SCALE TO 100 ) LI 34 0 65. 9 69.5 5.9 1 .2 . 89 15T TEARING STRENGTH, STANDARD. THW ING-EL MEND0RFI SCALE TO 100 ) L268 0 66.3 66.9 4.2 -.8 1 .03 15T TEARING STRENGTH. STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) L531 66.4 61.2 -.1 -4.6 2.63 15E TEARING STRENGTH, STANDARD, THW I NG-ELMEND0RF .AMBIENT C0ND

•

LI 9

1

0 66.4 69.5 6.2 .8 . 69 15T TEARING STRENGTH. STANDARD, THW ING-ELMEND0RF( SCALE TO 100 ) L5 81 0 66. 4 66. 6 4 .

0

-1.1 .94 15Q TEARING STRENGTH, STANDARD. THWING-ELMENDORF, AIR CLAMP .DIGITL

L241 0 66.7 70.3 7.0 1 . 1 1.04 15T TEARING STRENGTH, STANDARD, THW ING-ELMEND0RF( SCALE TO 100 ) L22 5 0 67.3 66.6 4.6 -1 .7 .79 15T TEARING STRE NGTH, STANDARD, TH W ING-ELMEND0RF( SCALE TO 100 ) L344 0 67.6 66.5 4.7 -2.1 1.38 1 5C TEARING STRENGTH. STANDARD, THWING-ELMENDORF ( W. AIR CLAMP

)

L251 67.8 69.7 7.3 -.1 1 .03 15K TEARING STRENGTH, STANDARD. LORENTZ-WETTRES. 20 c. 65* KH L484 0 68.3 66.8 5.4 -2 .4 .89 15T TEARING STRENGTH, STANDARD, TH W I NG-ELMEND0RF( SCALE TO 100 ) L279 0 68.3 68.0 6.3 -1 .6 1 .40 15T TEARING STRENGTH. STANDARD, THWING-ELMEND0RF( SCALE TO 100)

LI 59 0 68.4 67. 2 5 .

8

-2.2 1.66 15L TEARING STRENGTH, STANDARD. LORENTZ-WETTRES

L37 8 0 68.5 66.9 5.6 -2.4 1.30 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) L29 0 * 68.6 73.2 1 0.5 1.5 .98 15T TEAR I NG STRENGTH, STANDARD, THW I NG-EL MEND 0RF( SCALE TO 100 ) L2 32 « 69.2 65.7 5.2 -3.8 2.88 15T TEARING STRENGTH, STANDARD, THWING-ELMEND0RF( SCALE TO 100 ) L2 7 7 « 71.2 69.6 9.4 -2.8 1.03 15T TEARING STRENGTH, STANDARD, THW I NG-ELMEND 0RF< SCALE TO 100 ) LI 51 ft 78.8 75.9 19.2 -4.4 1.68 1 5C TEARING STRENGTH, STANDARD, THW I NG-ELMENDOfiF ( W. AIR CLAMP

)

L596 ft 78.9 65.9 11.7 -11.1 1.95 15T TEARING STRENGTH, STANDARD, THW ING-ELMEND0RFC SCALE TO 100 ) L250L 79.8 75.3 19.4 -5.6 1 .64 15H TEARING STRENGTH, STANDARD, LH0MARGY, 20 C, 65% RH

L2 65 ft 93.2 96. 5 44.2 -1.9 5.73 15T TEARING STRENGTH, STANDARD , THW ING-ELMEND6RF( SCALE TO 100 ) GMEANS

:

62.9 64.2 1.00 95% ELLIPSE: 9.6 3.5 WITH GAA1MA - 49 !DEGREES

17
MILLINEWT0N

520

540

560

580

600

620

640

650

680

700

720

740

TEARING STRENGTH, DEEP CUTOUT

SAMPLE E05 - 62.9 GRAMS SAMPLE H03 = 64.2 GRAMS

SAMPLE EOS = 617 M I LL I NEWTON SAMPLE H03 = 630 M I LL I NEWTON

GRAMS

i i 1 1 1 1 1 1 1 1 1 520 540 560 580 600 620 640 660 680 700 720

MILLINEHT0N

18
REPORT NO. 49S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS Til 7- 1 TABLE 1 TEARING STRENGTH, GRAMS

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

SAMPLE BROWN KRAFT .'aAMPLE BROWN KRAFT TEST D. -

1 5 LAB E04 74 GRAMS PER SQUARE METER El 7 74 GRAMS PER SQUARE METER

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

LI 22 71.1 5.8 1 .51 6.8 2.15 69.3 4.2 1 . 36 5. 8 2.05 1 7N e LI 22

LI 46 64.0 -1 .

3

-.34 3.4 1.07 65.1 • 0 .01 3. 2 1.13 17N e LI 48 L174N 61.6 -3.7 -.97 2.9 .93 61 .9 -3. 2 -1 .02 4.0 1.40 17N a LI 74N

L2 31 61.2 -4. 1 -1 . 07 1.3 • 42 60.5 -4.5 -1 .44 .9 .32 17N a L231 L234 67.1 1.8 • 46 1.7 . 53 67.5 2.4 .78 2.6 .90 17N a L234 L267 66.9 1.6 .43 2.1 .65 66.1 1 . 1 .34 2.8 .98 17N a L267

L2 6 9 65.4 .1 .03 3.2 1.02 67.0 2. 0 .63 3.1 1.09 17N © L269

L301 63.0 -2.3 -.60 1.7 .55 63.9 -1.1 -.35 1.7 .59 1 7N 0 L301

L3 08 67.0 1.7 .45 1.8 . 56 66.9 1 • 8 .59 2.6 .91 17N a L308

L324 57.3 -8. 0 -2.10 2.7 .86 56.0 -7.0 -2.26 3.6 1.27 17N a L324

L326 63.4 -1 .9 -.50 2.9 .91 64.1 -1.0 -.31 2.3 .81 17N a L326

L341 70.8 5.5 1.44 2.4 .75 67.4 2.4 .76 1.2 .42 17N a L341 L366 67.2 1.9 .50 3.8 1.19 67.5 2.5 .80 2.4 .85 17N a L366

L562 68.2 2.9 .76 7.7 2.43 65.3 .3 .10 3. 6 1.28 17N a L562

GR. MEAN • 65.3 GRAMS GRAND MEAN - 65.0 GRAMS TEST DETERMINATIONS 15 SD MEANS - 3. 8 GRAMS SD OF MEANS - 3.1 GRAMS 14 LABS IN GRAND MEANS

AVERAGE SDR - 3.2 GRAMS AVERAGE SDR - 2.8 GRAMS

GR. MEAN - 640.3 M I LL I NEWTON GRAND MEAN - 637.7 MILLINEWT6N

LZ 39 62.6 -2.7 -.71 2.1 .65 62.5 -2.5 -.81 2.9 1.03 17V L339

L566 88.3 23.0 6. 01 4. 1 1.30 86.7 21.6 6.95 4.2 1.48 17X L566 TOTAL NUMBER OF LABORATORIES REPORTING - 16

Best Values: E04 65 + 4 grains E17 65+5 grams

Data trom the tollowing laboratories appeared

to be off by a multiplicative factor: 339. Code 17V was assigned temporarily to put in

Please see the diagram of 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.

a factor of 2. 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: 566.

REPORT N6. 49S TAPPI COLLABORATI VE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T17-1 TABLE 2 TEARING STRENGTH, GRAMS

TAPPI STANDARD T414 TS-65, T HW IN G» ELMENDORF WITHOUT DEEP CUTOUT IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG

C8DE F E04 El 7 MAJ8R MINOR R. SDR VAR PROPERTY—--TE ST INSTRUMENT- --CONDITIONS

L324 a 57.3 58.0 -10.7 -.5 1.07 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L231 a 61.2 60.5 -6. 0 -.9 .37 1 7 N TEAR ING STRENGTH, NO CUT OUT, THWI NG -ELMENDORF

L174N a 61.6 61.9 -4.9 -.2 1. 16 1 7 N TEARING STRENGTH, NO CUT OUT, THWI NG- ELMENDORF

L339 62. 6 62.5 -3.7 -.3 . 84 17V TEARING STRENGTH. NO CUT OUT, THWI NG-ELMENDORF( MULT

L30 1 a 63.0 63.9 -2.5 • 6 .57 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L32 6 a 63.4 64. 1 -2.1 .4 . 86 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

LI 4 8 a 64.0 65.1 -1 .0 • 8 1 .10 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L269 a 65.4 67.0 1.3 1.5 1 . 05 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L267 a 66.9 66.1 1.9 -.2 .81 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L30 8 a 67.0 66.9 2.5 .4 .74 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L234 a 67. 1 67.5 2.9 .8 .72 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L3 66 a 67. 2 67.5 3.1 .8 1.02 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L562 a 68.2 65.3 2.5 -1 .6 1 .85 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L34

1

a 70.8 67.4 5.8 -1 .6 .58 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

LI 22 a 71.1 69. 3 7.2 -.3 2.10 17N TEARING STRENGTH, NO CUT OUT, THWI NG-ELMENDORF

L566 88.3 86.7 31 .5 2.5 1.39 17X TEARING STRENGTH GMEANS : 65.3 65.0 1 .00 95% ELLIPSE: 14. 1 2.7 WITH GAMMA - 38 DEGREES

19
MILLINEWTON

500

520

540

560

580

600

620

640

660

680

700

720

7

40

760

780

TEARING STRENGTH, NO CUTOUT, OLD STYLE

SAMPLE E04 = 65-3

SAMPLE E04 = 640

GRAMS

M I LL I NEWTON

SAMPLE E 1 7 = 65.0

SAMPLE E 1 7 r 638

GRAMS

M I LL I NEWTON

CO

r~~ +,X.« NOT IN GRAND MEANS

UJ ANALYSIS T17-1

LlJ

I Q_

21

CE

CO

(D

<S> o

o

o

o

o

a= ,, cn to CO

cO

o

o

o

SAMPLE E04

—i

74 —i

50 52 54 56 58 60 62 64 66 68 70 72 76 78 80

GRAMS

l i i i i

1 1 1 1 1 1 1 1 1

1 500 520 540 560 580 600 620 640 660 680 700 720 740 760 780

MILLINEUT0N

20
REPORT NO. 49S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1677 ANALYSIS T19-J TABLE 1 TENSILE BREAKING STRENGTH, K I LONEWTONS PER METER - PACKAGING PAPER

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

SAMPLE KRAFT SAMPLE KRAFT TEST D. -1 20 LAB H56 147 GRAMS PER SQUARE METER H09 147 GRAMS PER SQUARE METER

C3DE MEAN DEV N.DEV SDR R. SDR MEAN DEV N. DEV SDR I . SDR VAR F LAB

LI 07 9.38 -.14 -.32 .97 1.59 6.80 -.24 -.82 .65 1 .31 19A 0 LI 07

LI 22 9.91 .40 .91 .38 • 62 7.14 . 09 .31 .71 1.41 19A 0 LI 22

LI 26 9.31 -.20 -.47 .79 1.29 6.91 -.14 -.48 .56 1.11 19A 0 LI 26

LI 51 9.09 -.42 -.98 .57 .94 6.63 -.42 -1.41 .51 1 .02 19A 0 LI 51

LI 5 3 9.87 .36 .82 .64 1 . 05 7.33 .29 .96 .46 .91 19P 0 LI 53 L15 7A 10.10 .59 1.35 .63 1.03 7.21 .17 • 56 .59 1 .17 19P 0 LI 57A

LI 571 8.69 -.03 -1.91 .70 1.14 6.96 -.09 -.29 .50 1 .01 19A 0 LI 571

LI 67 9.99 .47 1.09 .36 . 59 7.41 .36 1.22 .33 .65 19P 0 LI 67

LI 74 9.97 .45 1.04 .73 1.21 7.18 .13 .44 .59 1.18 19A 0 LI 74

LI 8 2 I 9.61 .09 .21 .45 .73 6.84 -.21 -.71 .53 1.07 19D 0 LI 821

LI 82 L 9.39 -.12 -.29 .71 1.16 6.89 -.16 -.54 .56 1.12 19T 0 LI 82

L

L207 8.47 -1 .OS -2.41 .14 • 22 7.50 .45 1.50 .58 1.16 19A X L2 07 L21 7A 9.05 -.46 -1.06 .51 . 83 6.99 -.06 -.20 .50 1 .00 19A 0 L217A

L21 7P 9.06 -.46 -1 .06 .53 .87 7. 16 • 1 1 .36 .69 1.39 19P 0 L217P

L224 9.71 .19 .44 .98 1 . 61 7.14 .10 .32 .39 .77 19A 0 L224 L225 9.61 .09 • 21 .72 1.17 7.29 .24 • 81 .66 1.32 19P 0 L225

L234L 9.18 -.34 -.78 .52 . 85 7.11 .06 .20 .70 1.39 19P 0 L234L L237A 9.83 .32 .73 .53 .87 7.49 .44 1 .47 • 42 . 85 19Q 0 L237A L237B 9.68 .17 .39 .69 1.14 7.34 .29 .99 .50 1.01 19A 0 L237B L238A 10.09 .58 1 .32 .71 1.1 6 7.08 .04 • 12 .54 1.08 19T 0 L238A

L24 3 9.51 -.00 -.00 .56 .91 6.74 -.31 -1.03 .54 1 .09 19A 0 L243 L257A 9.59 .07 .17 .54 .88 7. 14 . 09 .30 .32 .64 19P 0 L257A

L257B 9.53 .01 .03 • 44 .72 7.26 • 21 .70 .28 .55 1 9P 0 L257B

L257C 9.44 -.00 -B 18 .33 .53 7.01 -.04 -.13 .29 .57 19P 0 L2 57C L264P 9.92 .40 .93 .41 .67 7.34 .29 .97 .43 .87 19P 0 L264P

L265 9.05 -.46 -1.07 .84 1.38 7.02 -.03 -.09 .33 .65 1 9 A 0 L265

L267 8.66 -.86 -1.98 .54 . 88 6.54 -.51 -1 .70 .50 1.00 1 9 A 0 L267

L268A 9.18 -.33 -.76 .58 .95 7.04 -.01 -.03 .45 .91 19A 0 L268A

L268P 9.60 .08 • 16 .50 • 82 7.26 • 21 .70 • 41 .83 19P 0 L268P

L273 9.84 .32 .74 • 82 1.35 7.59 .55 1 .83 .72 1 .45 1 9 P 0 L273

L274 9.63 . 1 1 .26 .41 .67 6.92 -.13 -.44 • 22 .45 19P 0 L2 74 L280 9.35 -.17 -.38 .53 • 87 6.93 -.11 -.38 .43 . 86 19G 0 L2 80 L281 10.18 .67 1.53 .58 .95 7.08 .03 .09 .40 . 80 19G e L281

L3 05 10.37 . 85 1.96 .40 .66 7.18 • 1 4 .46 .27 .54 19P 0 L305

L31 2 9.25 -.26 -.60 .50 .82 7.08 .03 . 09 .65 1.29 19D 0 L312

L31 8 8.91 -.61 -1 .40 .62 1 • 01 6.63 -.42 -1 .40 .44 • 88 19G 0 L31 8 L32 4 9.40 -.12 -.27 .70 1.15 6.90 -.15 -.50 • 46 .92 19A 0 L324

L334 10.10 .58 1 .34 .58 .95 7.03 -.02 -.07 .80 1.60 19P 0 L334 L336 9.61 .10 .22 .58 .96 6.73 -.32 -1.06 .43 .85 19G 0 L336

L356 10.1 0 .58 1 .34 .85 1.39 7.64 .59 1.97 .68 1 .36 1 9P 0 L356

L392 9.63 .12 .27 .71 1.17 7.11 .06 .20 • 61 1.22 19A 0 L392

L5 62 NO DATA REPORTED FOR SAMPLE H56 39.58 32.53 1 08.97 4.25 8.51 19X M L562 L565 9.42 -.10 -.23 • 28 . 47 7.61 .56 1 .88 .34 .67 1 9T «- L565

L56 8 9.44 08 -.18 .75 1.24 7.16 • 11 .38 .34 .68 1 9P 0 L56 8 L57 5 9.27 -.24 -.56 .63 1.03 6.64 -.41 -1.37 .46 .93 1 9D O L575

L576 9.98 .46 1 .07 .40 .65 6.43 -.61 -2.05 .53 1.05 19A X L576

L5 8 0 9.74 • 22 .52 .73 1.20 7.06 .01 .04 .58 1 • 16 19G 0 L580

L582 9.22 -.30 -.68 .59 .96 6.46 -.59 -1 .98 .56 1.13 1 9 A 0 L582

L61 0 8.28 -1.23 -2.84 .49 . 80 6.23 -.82 -2.74 .60 1 .20 1 9 A * L61 0

GR. MEAN - 9.52 KIL0NEWT0N/M GRAND MEAN - 7.05 KTL0NEWT0N/M TEST DETERM INATI0NS - 20

SD MFANS - .43 KIL0NEWT0N/M SD 0F MEANS -

. 30 KIL0NE WT0N/M 46 LABS IN GRAND MEANS

AVERAGE SDR - .61 KIL0NEWT0N/M AVERAGE SDR . 50 KIL0NEWT0N/M

GR. MEAN - 54.35 LB/INCB GRAND MEAN - 40.25 LB/ INCH

L250I 8.48 -1.03 -2.38 .71 1 . 17 6.07 -.97 -3.26 .41 .82 19L L250I

L251 7.79 -1.72 -3.96 .76 1.25 6.48 -.57 -1 .91 .44 .88 191 L251 T0TAL NUMBER 0F LABORATORIES REPORTING - 51

Best Values: H56 9 .5 + 0.6 kilonewton per meter

H09 7 .0 + 0.5 kilonewton per meter

21
REPORT NO. 49S TAPPI C0LLAB6RAT I VE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T19-1 TABLE 2 TENSILE BREAKING STRENGTH, KILO NEWTONS PER METER - PACKAGING PAPER

TAPPI ;STANDARDS 1404 OS-76 AND T494 6S-70. TENSILE BREAKING STRENGTH[, PENDULUM AND CRE TYPES

LAB MEANS COORDINATES AVG C0DE F H56 H09 MAJOR MINOR R. SDR VAR PROPERTY— -TEST INSTRUMENT ---CONDITIONS

L56 2 M 39.5 8 8.51 19X TENSILE STRENGTH, PACKAGING PAPER: ( ) PENDULUM, ( >LOAD CEL

L251 7.79 6.48 -1 .78 .35 1.07 191 TENSILE STRENGTH, PACKAGING PAPER. CRE, 20C, 65* RB

L61 0 « 8.28 6.23 -1.48 -.11 1.00 1 9 A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CEE ) L207 X 8.47 7.50 -.69 .90 .69 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) L250I 8.48 6.07 -1 • 38 -.34 1 .00 19L TENSILE STRENGTH, PACKAGING PAPER. CRE, 20 C , 65* BB

L267 0 8.66 6.54 -1.00 -.02 .94 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) LI 571 0 8.69 6.96 -.77 .33 1.07 1 9A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CEE ) L318 0 8.91 6. 63 -.73 -.07 .95 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) L26 5 0 9.05 7.02 -.42 .20 1.02 19A TENS I LB STRENGTH, PACKAGING PAPER, LOAD CELL (CEE ) L21 7A 0 9.05 6.99 -.43 .17 .91 19 A TENS I LB STRENGTH, PACKAGING PAPER, LOAD CELL < CEE )

L217P 0 9.06 7.16 -.35 .32 1.13 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

LI 51 0 9 .09 6.63 -.58 -.16 .98 19 A TENSILE STRE NGTH, PACKAGING PAPER, LOAD CELL (CEE)

L234L 0 9.18 7.11 -. 27 .22 1.12 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L268A 0 9.18 7.04 -.29 .15 .93 19A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CEE ) L582 0 9.22 6.46 -.55 -.37 1.04 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CEE )

L312 0 9.25 7.08 -.21 .15 1 .06 19D TENSILB STRENGTH. PACKAGING PAPER. LOAD CELL (CEE ) L575 0 9.27 6.64 -.41 -.24 .98 19D TENS I LB STRENGTH, PACKAGING PAPER, LOAD CELL (CRE ) LI 26 0 9.31 6.91 -.25 -.02 1.20 19A TENSILE STRENGTH, PACKAGING PAPER. LOAD CBLL ( CRE ) L280 0 9.35 6.93 -.20 -.02 . 87 19G TENSILB STRENGTH, PACKAGING PAPER, LOAD CELL ( CEE ) LI 07 0 9.38 6.80 -.24 -. 14 1.45 19A TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CEE ) L182L 0 9.39 6. 89 -.19 -.06 1.14 19T TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L32 4 0 9.40 6.90 -.17 -.07 1.03 1 9A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CEE ) L565 « 9 .42 7.61 . 19 .54 .57 19T TENSILE STRENGTH. PACKAGING PAPER. PENDULUM TBSTEE L257C 0 9.44 7.01 -. 09 .01 .55 19P TENSILE STRENGTH. PACKAGING PAPER, PENDULUM TESTER

L56 8 0 9.44 7.16 -.01 .14 .96 19P TENSILE STRENGTH. PACKAGING PAPER, PENDULUM TBSTER

L243 0 9.51 6.74 -.15 -.27 1 .00 1 9 A TENSILE STRENGTH. PACKAGING PAPER, LOAD CELL (CRE > L257B 0 9.53 7.26 • 11 . 16 .64 19P TENSILE STRENGTH, PACKAGING PAPER. PENDULUM TESTER

L2 57A 0 9.59 7.14 • 1 1 .04 .76 19P TBNSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L2 68P 0 9.60 7.26 . 17 . 14 .82 19P TENSILE STRENGTH, PACKAGING PAPER. PENDULUM TESTER

LI 82 1 0 9.61 6.84 -.02 -.23 .90 19D TENSILB STRENGTH, PACKAGING PAPER, LOAD CELL ( CRE ) L225 0 9.61 7.29 .20 . 16 1.24 19P TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L33 6 0 9.61 6. 73 -.07 -.32 .91 19G TENSILE STRENGTH. PACKAGING PAPER, LOAD CELL ( CEE ) L2 74 0 9.63 6.92 • 04 -.17 .56 19P TENSILB STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L392 0 9.63 7.11 . 13 -.01 1 .20 1 9A TENSILE STRENGTH. PACKAGING PAPER, LOAD CELL ( CRE ) L237B 0 9.68 7.34 .29 . 17 1.07 19A TENSILE STRENGTH. PACKAGING PAPER. LOAD CELL ( CEE ) L224 0 9.71 7.14 • 22 -.01 1.19 1 9 A TENSILE STRENGTH. PACKAGING PAPER. LOAD CBLL ( CEE ) L580 0 9.74 7.06 .20 -.10 1.18 19G TENSILE STRENGTH, PACKAGING PAPER, LOAD CELL ( CEE ) L237A 0 9.83 7.49 .49 .23 . 86 19 Q TENSILE STRENGTH, PACKAGING PAPER, PENDULUM TESTER

L2 73 0 9.84 7.59 .55 .32 1.40 19P TENSILB STRENGTH. PACKAGING PAPER, PENDULUM TESTER

LI 53 0 9.87 7.33 .45 .06 .98 19P TENSILE STRENGTH. PACKAGING PAPER, PENDULUM TESTER

LI 2 2 0 9.91 7.14 .39 -.11 1.02 1 9 A TENSILB STRENGTH, PACKAGING PAPER, LOAD CELL ( CEE ) L264P 0 9.92 7.34 .49 .05 .77 19P TENSILB STRE NGTH, PACKAGING PAPER. PENDULUM TESTER

LI 74 0 9.97 7.18 .46 -.11 1.19 1 9A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CEE ) L576 X 9.98 6.43 • 1 0 -.76 .85 19A TENSILE STRENGTH, PACKAGING PAPER. LOAD CELL ( CRE > LI 67 0 9.99 7.41 .59 .09 .62 19P TENSILB STRENGTH. PACKAGING PAPER, PENDULUM TESTER L238A 0 1 0.09 7.08 .52 -.25 1.12 19T TENSILB STRENGTH. PACKAGING PAPER. PENDULUM TESTER

L3 56 0 10.10 7.64 .79 .23 1 . 37 19P TENSILB STRENGTH. PACKAGING PAPER, PENDULUM TBSTER

L334 0 10.10 7.03 .50 -.30 1.28 19P TENSILE STRENGTH. PACKAGING PAPER, PENDULUM TESTER

LI 57A 0 10.10 7.21 .59 -.14 1.10 19P TENSILE STRENGTH. PACKAGING PAPER. PENDULUM TESTER

L281 0 10.18 7.08 .59 -.30 .87 19G TENSILE STRE NGTH. PACKAGING PAPER. LOAD CELL ( CRE ) L305 0 10.37 7.18 . 81 -.30 .60 19P TENSILE STRENGTH, PACKAGING PAPER. PENDULUM TESTER GMEANS

:

9.52 7.05 1 .00 95% :ELLIPSE: 1.24 .53 WITH GAMMA - 29 DEGREES

22
TENSILE STRENGTH, PACKAGING PAPERS

o

LO

CO

CD

'=3'

'3"

C\J x

\

CD

—I 00

CO

CD

CO

'sf CO

CMCO

SAMPLE H56 = 9.52 KIL0NEWT0N/M SAMPLE H09 = 7.05 K I L0NEWT0N/M

SAMPLE H56 = 54-3 LB/INCH SAMPLE H09 = 40.3 LB/INCH

KILGNEWT0N/M

44 46 48 50 52 54 56 58 60 62 6 4

LB/INCH

23
REPORT NO. 49 S TAPP I COLLABORATE VE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T20-1 TABLE 1 TENSILE BREAKING STRENGTH, KILONEWTONS PER METER

TAPPI STANDARD T494 03-70, TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMPLE HEAT SET OFFSET BOOK SAMPLE PRINTING TEST D. ' 20

LAB B95 91 GRAMS PER SQUARE METER H43 91 GRAMS PER SQUARE METER

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

LI 00 4.46 -.03 -.18 .19 .98 7.55 .39 .75 .22 .71 20E O LI 00

LI 15 4.45 -.05 -.25 .18 .95 7.53 .36 .69 .17 .54 2 OD e LI 1 5

LI 1 8 4.60 .10 .56 .17 .90 7.42 .26 .50 .20 .66 20A e LI 18

LI 22 4.55 .05 .29 .23 1 .19 7.30 . .13 .26 .27 . 87 20A 0 LI 22 L12 4C 4.45 -.04 -.22 .24 1.28 6.94 -.22 -.44 .48 1.58 20A 0 LI 24C

LI 2 5 4.65 .15 .84 .21 1.12 7.72 .55 1.07 .35 1 .16 2 0C 0 LI 25

LI 31 4.76 .26 1.43 .30 1.57 7.73 .56 1 .09 .41 1.35 2 OE 0 LI 31 L141T 4.55 .05 • 28 .20 1.04 6.79 -.38 -.73 .36 1.17 2 OA 0 LI 41 T

LI 43 5.01 .52 2 .es .22 1.14 8.39 1.22 2.37 .36 1.16 20E 4 LI 43

LI 4 8 4.65 .16 . e6 .24 1.24 6.98 -.19 -.37 .54 1.77 2 0A a LI 48

LI 59 4.45 -.04 -.22 .29 1.54 5.90 -1.27 -2.45 .63 2.07 2 OA 0 LI 59

LI 63 4.63 .13 .74 .13 .67 7.37 .21 • 40 .32 1.06 2 OD 0 LI 63

LI 76 4.30 -.20 -1.09 .29 1.52 7.19 .02 .03 .36 1 .16 20E 0 LI 76

LI 85 4. 50 .01 .04 .19 1.01 7.65 • 48 • 94 • 21 .68 20C 6 LI 85 L190R 4.37 -.12 -.66 .14 .75 7.51 .34 .67 .15 .SI 20A 0 L190R

LI 94 4.43 -.07 -.36 .18 .96 7.37 .20 .39 • 20 .67 2 OA a LI 94 L20 6 4.75 .25 1 .39 .10 . 53 7.69 .52 1.01 .15 .47 20A e L2 06 L223B 4.60 .10 .57 .12 .63 7.58 .41 .60 .20 .65 20A e L223B

L226C 4.82 .32 1.77 .21 1.12 7.78 .61 1.18 .26 .84 20C a L226C

L23 0 4.38 -.12 -.64 .13 .70 7.16 -.01 -.01 • 18 .59 200 a L230

L243 4.51 .01 .06 .15 .77 7.26 .09 .18 .27 .87 20A a L243 L255 4.70 .20 1.12 .17 .90 7.77 .60 1.17 • 12 .40 20A a L255

L26 0 4.39 -.10 -.57 .20 1.04 4.96 -2.21 -4.28 .27 .89 20A X L260

L261 4.23 -.26 -1 .44 .20 1.08 6.83 -.34 -.66 .34 1 .12 2 OA a L261

L27 8 4.18 -.31 -1.71 .25 1 .30 7.15 -.02 -.04 .32 1.04 20A 0 L278

L29 1 4.63 .13 .73 .43 2.25 8.72 1.56 3.01 • 26 .85 2 OA 0 L291 L309 4.71 .21 1.17 .24 1.28 6.89 -.27 -.53 • 66 2.15 20E 0 L309

L31 5 4.28 -.22 -1.19 .15 .81 7.18 .01 .02 .47 1.54 20A 0 L315

L31 8 4.23 -.27 -1.47 .13 . 69 7.12 -.05 -.10 • 18 .59 2 OG 0 L318

L32 8 4.55 .05 .30 .19 .98 7.47 .30 .59 .24 .79 20A e L328

L331 4.68 .18 1 .00 .18 .93 5.93 -1.24 -2.40 .33 1 . 08 20A * L3 31 L333 4.43 -.06 -.33 .20 1.05 7.52 .36 .69 .22 .73 20A 0 L333

L34 4 4.33 -.17 -.91 .18 .96 7.49 .32 .62 • 22 .72 20A 0 L344

L352 3 .40 -1.10 -6.02 .27 1.42 NO DATA REPORTED FOR SAMPLE H43 20A u L352

L360 4.20 -.30 -1.64 .07 .37 6.48 -.69 -1 .34 .25 .83 20B a L360

L37 8 4.53 .04 .20 .16 . 83 6.56 -.61 -1.17 • 22 .73 20A 0 L378

L39 0 4 .43 -.06 -.34 .18 .94 7.43 .27 .52 .64 2.09 20A 0 L390

L531 4.66 .16 .89 .27 1.42 7.73 .56 1 .09 .28 .91 20A 0 L531 L563A 4.00 -.50 -2.72 .38 1.98 6.41 -.76 -1 .46 .58 1.90 20A • L563A

L567 4.58 .09 .49 .19 1.00 6.34 -.83 -1.61 • 21 . 7Q 20A 0 L567

L574 4.60 .11 .58 .14 .76 7.63 .47 .90 .20 .67 20A 0 L574

L575 4.46 -.03 -. 17 .21 1.13 6.22 -.95 -1 .83 .53 1 .72 2 OD 0 L575

L587 4.51 .02 .10 .29 1.52 NO DATA REPORTED FOR SAMPLE H43 20A M L587

L592 4.67 .17 .95 .20 1.05 6.97 -.20 -.38 .27 .87 20A 0 L592

GR. MEAN • 4. 49 K I L0NEW10N/M GRAND MEAN - 7. 17 KILONFWTON/M TEST DETERMINATIONS - 20

SD MEANS •

• 18 KILONEVTON/M SD OF MEANS - .52 KILONFWTON/M 39 LABS IN GRAND MEANS

AVERAGE SDR - .19 KIL0NBWT6N/M AVERAGE SDR - .31 KILONEWTON/M

GR. MEAN - 15.160 LB/15 MM GRAND MEAN • 2*. 174 LB/15 MM

LI 39 4.37 -.13 -.71 • 20 1 . 05 6.68 -.49 -.94 .28 .91 20H LI 39 L231 4.66 .16 .90 .19 1.02 6.70 -.47 -.91 .52 1.69 2 OH L231 L250I 4.1 5 -.34 -1.88 .13 • 68 6.47 -.70 -1 .35 .20 .67 20L L250I

L251 3.69 -.81 -4.41 .27 1.44 6.30 -.86 -1.67 .50 1 .62 201 L251 L563P 4.33 -.16 -.89 .26 1 . 39 6.99 -.18 -.35 • 40 1.31 2 OP L563P TOTAL NUMBER OF LABORATORIES REPORTING * 49

Best Values: B95 4 .5 + 0.3 kilonewton per meter

H43 7 .2 + 0.8 kilonewton per meter

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

291.

24
RE POST NO. 49S TAPP I COLLABORATI VE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T20-I TABLE 2 TENSILE BREAKING STRENGTH, KILO NEWTONS PER METER

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

LAB MEANS COORDINATES AVG CODE F B95 H43 MAJOR M (NOR M. SDR VAR PROPERTY—TEST INSTRUMENT- --CONDITIONS

L352 M 3.40 1 .42 20 A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE

L251 3.69 6.30 “.95 .70 1 .53 201 TENSILE STRENGTH

,

PRINTING PAPER, CRE, 20 C, 65* BH L563A • 4.00 6.41 -.81 .40 1 .94 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. L8AD CELL (CBE)

L2 SOI 4.15 6.47 -.73 .26 .67 20L TENSILE STRENGTH, PBINTINO PAPER, CRE, 20 C, 65* BH

L2 7 8 a 4.18 7.15 -. 06 .31 1 .17 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL (CBE ) L36 0 a 4.20 6.48 -.72 .21 .60 20 B TENSILB STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CELL ( CBE ) L31 8 a 4.23 7.12 -. 08 .26 .64 20 G TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CBE > L261 a 4.23 6. 83 -.37 .22 1 .10 20A TENSILE STRBNGTH. PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE)

L315 a 4.23 7.18 -.01 .22 1 .18 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. LOAD CELL ( CBE)

LI 7 6 a 4.30 7.19 -.01 .20 1 .34 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CBE)

L344 a 4.33 7.49 .30 .20 .84 2 OA TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CBE ) L563P 4.33 6.99 -.20 .14 1 .35 20 P TENSILB STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 39 4.37 6.68 -.50 . 07 .98 20H TENSILE STRENGTH, PRINTING PAPER, CRE, SHORT TEST SPAN

LI 9 OR a 4.37 7.51 .33 .16 .63 20 A TBNSILE STRENGTH, PRIMARILY PRINTING PAPERS. LGAD CELL (CBE ) L230 a 4.38 7.16 -.02 .11 .65 20 a TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. LGAD CELL (CBE )

L26 0 X 4.39 4.96 -2.21 -.16 .96 20A TENSILB STRENGTH. PRIMARILY PRINTING PAPERS, LOAD CELL ( CBE ) LI 94 a 4.43 7.37 .19 .09 .81 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE > L39 0 a 4.43 7.43 .26 .09 1 .52 2 OA TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL (CBE)

L33 3 a 4.43 7.52 .35 .10 .89 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CBE ) LI 1 5 a 4.45 7. 53 .35 .09 .74 20D TENSILB STRENGTH. PRIMARILY PRINTING PAPERS. L8AD CELL (CBE) L124C a 4.45 6.94 -.23 .01 1 .43 20 A TBNSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE > LI 59 a 4.45 5.90 -1.26 -.11 1 .81 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LOAD CELL ( CRE)

L100 a 4.46 7.55 .38 .08 .84 206 TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE ) L575 a 4.46 6.22 -.94 -.08 1 .42 20 D TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE)

LI 85 a 4.50 7.65 .48 . 05 .84 20C TENSILB STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE ) L243 a 4.51 7.26 .09 • o o .82 20 A TENSILB STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE ) L5 8 7 M 4.51 1 .52 2 OA TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE

L378 a 4.53 6.56 -.60 -.11 .78 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL (CRE ) L141T a 4.55 6.79 -. 37 -.10 1 .11 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL (CRE)

LI 22 a 4.55 7.30 .14 -.04 1 .03 20 A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS. LGAD CELL (CRE ) L326 a 4.55 7.47 .31 -.02 .89 20A TENSILE 8THENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE ) L56 7 a 4.58 6.34 -.82 -.19 .85 20A TENSILB STRENGTH. PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE ) L118 a 4.60 7.42 .27 -.07 .78 20 A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE ) L223B a 4.60 7.58 .42 -.05 .64 20 A TENSILB STRBNGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE ) L574 a 4.60 7.63 .48 -.05 .71 20 A TENSILE 8THENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE ) L291 * 4.63 8.72 1.56 .05 1 .55 2 OA TENSILB STRENGTH, PRIMARILY PRINTING PAPERS. LGAD CELL ( CRE ) LI 63 a 4.63 7.37 .22 -.11 .86 2 OD TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LGAD CELL (CBE)

LI 2 5 a 4.65 7.72 .56 -.09 1 .14 20C TENSILB STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE ) LI 48 a 4.65 6.98 -.17 -.18 1 .51 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. LGAD CELL (CHE)

L531 a 4.66 7.73 .58 -.09 1 .17 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. LGAD CELL ( CRE )

L231 4.66 6.70 -.45 -.22 1 .36 20H TENSILE STRENGTH, PRINTING PAPER, CRE, SHaRT TEST SPAN

L592 a 4.67 6.97 -.18 -.20 .96 20A TENSILE STRENGTH. PRIMARILY PRINTING PAPERS. LGAD CELL ( CRE ) L331 • 4.68 5.93 -1.21 -.33 1 .00 20 A TENSILB STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL (CBE)

L255 a 4.70 7.77 .62 -.13 .65 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE ) L3 09 a 4.71 6.89 -.25 -.24 1 .71 20E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. LGAD CELL ( CRE )

L2 06 a 4.75 7.69 . 55 -.19 .50 20A TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE)

LI 31 a 4.76 7.73 .59 -.19 1 .46 2 0E TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, LGAD CELL ( CBE ) L22 6C a 4.82 7.78 .64 -.25 .96 20C TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LGAD CELL (CRE ) LI 4 3 * 5.01 8.39 1.28 -.37 1 .15 20 B TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, LGAD CELL ( CRE ) GMEANS

:

4.49 7.17 1 .00 95% ELLIPSE: 1.34 .45 WITH GAMMA - 83 DEGREES

25
TENSILE STRENGTH, CRE TYPE

SAMPLE B95 = 4.49 K I L0NEWT0N/M SAMPLE H43

SAMPLE B95 = 15-2 LB/15 MM SAMPLE H43

7.17 K I L0NEWT0N/M

24.2 LB/15 MM

LD

\

CD

O

00

CD

(XJ

OO

C\L

(XI

'

CD

(X)'

LD

CX

'

C\j'

OO

(XJ

(XI

(XI

(XJ o

(XJ

CD

OOo

KIL0NEWT0N/M

I I

1 1 1 1 1 1 1 1 1 1

1 9 10 11 12 13 14 15 16 17 18 19 20 21

LB/15 MM

26
REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T20-2 TABLE 1 TENSILE BREAKING STRENGTH, K I LONE ETON £ PER METER

TAPPI STANEARD T404 OS-76, TENSILE BREAKING STRENGTH OF PAPER AND PAPERBOARD < PENDULUM-TYPE TESTER)

SAMPLE HEAT SET OFFSET BOOK SAMPLE PRINTING TEST D. - 20 LAB B95 91 GRAMS PER SQUARE METER H43 91 GRAMS; PER SQUARE METER

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

LI 03 4.70 .14 .50 .16 .88 7.76 .76 .90 .25 .78 2 OR 0 LI 03

LI 0 8 4.68 .12 .42 .12 .60 5.94 -1 .06 -1.25 .27 .85 20P 0 LI 08

LI 2 1 4.86 .31 1.08 .20 .96 7.89 .69 1.05 .25 .81 2 OP 0 LI 21 LI 24P 4.31 -.25 - .87 .37 1 • 80 7.17 .17 .20 .33 1.05 20P 0 L124P

LI 28 4.59 .04 .12 .19 .94 7.40 .40 .48 .25 .81 20T 0 L 1 28

LI 4 8 4.52 -.04 -.13 .17 • 83 6.51 -.48 -.51 .60 1 .91 2 OP « LI 48

LI 62 4.65 .09 .32 .20 • 98 7.42 .42 .50 .35 1.10 2 OT 0 LI 62

LI 82 L 4.53 -.03 -.09 .13 . 63 7.26 .26 .31 .28 .88 2 OT 0 LI 82 L

LI 89 4.89 .33 1.16 .29 1.39 7.69 .69 .81 .38 1.21 2 OR o LI 89

LI 91 P 4.59 .04 . 14 .20 .99 7.30 .30 .36 .28 . 88 2 OP 0 LI 91 P

LI 9 5 4.52 -.03 -.10 .30 1 .44 7.34 .34 .40 .39 1.23 2 OR 0 LI 95

L21 3 4.70 .15 .52 .23 1.12 7.30 .30 .35 .46 1 .48 2 OT 0 L213

L21 8 4.21 -.35 -1.21 .20 .96 7.79 .79 .94 .23 .74 2 OP 0 L21 8 L24

1

4.70 .14 .49 .20 .98 7.61 .61 .72 .19 .60 2 OR 0 L241 L242 4.25 -.31 -1.07 .19 • 90 7.24 • 24 .29 .27 . 87 20Y 0 L242

L249 4.49 -.07 -.24 .17 . 83 7.30 .30 .35 .20 .64 2 OP 0 L249

L254 4.51 -.04 -.16 .16 .78 7.52 • 52 .61 .20 .63 20 P 0 L2S4

L2 59 5.12 .56 1.96 .21 1 • 03 6.79 -.21 -.25 .60 1 .90 2 OP 0 L2 59 L262 4.33 -.23 -.79 .14 .66 7.64 .64 .75 .16 .52 2 OR 0 L262

L274 4.43 -.12 -.42 .14 .68 7.41 .41 .48 .19 .62 20P 0 L274

L27 5 4.34 -.21 -.75 .27 1 .31 6.73 -.27 -.31 .37 1.18 2 OR 0 L2 75 L279P 4.26 -.29 -1.03 .23 1.12 5.85 -1.15 -1.35 .45 1 .43 20P 0 L279P

L285 4.08 -.47 -1 .65 .12 . 56 4.90 -2.10 -2.47 . 1 1 . 36 2 OP * L2 85 L29 0 4.15 -.40 -1.41 .14 .70 6.36 -.64 -.76 .29 .91 20P 0 L290

L31 1 4.14 -.42 -1.45 .19 .92 6.92 -.08 -.09 .36 1.13 2 0V 0 L311

L321 5.20 .65 2.25 .30 1.44 7.77 .78 .92 .41 1.32 20V 0 L321 L322 4.32 -.24 -.83 .35 1 . 68 4.49 -2.51 -2.96 .39 1.24 20P * L322

L330 5.04 .48 1.69 .19 . 93 5.64 -1.36 -1 .61 .50 1.58 20P « L330

L356 4.57 .01 .05 .32 1.54 5.37 -1.63 -1 .93 .29 .93 20P 0 L356

L362 4.68 .13 .44 .26 1.23 7.38 .38 .45 .48 1.54 20b 0 L 362

L37 0 5.15 .59 2.06 .16 .76 7.78 .78 .93 .19 .61 20P 0 L3 70 L376 4.64 .09 .30 .16 . 85 7.70 .71 .83 .30 .95 20P 0 L3 76 L393 4.71 .15 .54 .16 .77 7.40 .40 .48 .29 .94 2 OP 0 L393

L484 4.32 -.24 -.83 .26 1.24 7.10 .1 0 .12 .24 .78 20U 0 L4 84

L5 85 4.31 -.24 -.84 .11 • 5 5 6.94 -.06 -.07 .13 .41 20V 0 L585

L599 4.50 -.05 -.17 .25 1.20 7.35 .35 .42 .42 1 .35 20V 0 L599

GR . MEAN - 4.55 KIL0NEWT0N/M GRAND MEAN - 7.00 KIL0NEWT0N/M TEST DETERMINATIONS • 20 SD MEANS - .29 K I LON EH TON/

M

SD OF MEANS - .85 K IL0NE WT0N/M 36 LABS IN GRAND MEANS

AVERAGE SDR - .21 K I L0NEWT0N/M AVERAGE SDR • .31 K I LONEW TON/M

GR. MEAN -15.360 LB/15 MM GRAND MEAN •23.603 LB/15 MM TOTAL NUMBER OF LABORATORIES REPORTING - 36

Best Values: B95 4.5 + 0.5 kilonewton per meter

H43 7.2 + 1.3 kilonewton per meter

27
REPORT NO. 49S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T20-2 TABLE 2 TENSILE BREAKING STRENGTH, KILO NEWTONS PER METER

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

LAB MEANS COORDINATES AVG

CODE F B95 H43 MAJ0B MIN0B B . SDK VAfi PROPERTY— -TE ST INSTRUMENT ---CONDITIONS

L2 85 « 4.08 4.90 -2.14 .23 .46 20P TENSILE STRENGTH. PRIMARILY PRINTING PAPERS. PENDULUM TESTER

L31 1 6 4.14 6.92 -.13 .40 1 .02 20V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L290 0 4.15 6. 36 -.69 .33 • 80 2 OP TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L21 8 0 4.21 7.79 .75 .44 .85 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L242 0 4.25 7.24 .21 .33 .88 20 Y TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. PENDULUM TESTER

L279P 0 4.26 5.85 -1.17 .16 1 .27 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 24P 0 4.31 7.17 .14 .27 1.43 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L585 0 4.31 6. 94 -. 09 .23 .48 20V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L322 » 4.32 4.49 -2. £2 -. 05 1 .46 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L484 0 4.32 7.10 .07 .25 1.01 20 U TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L26 2 0 4.33 7. 64 .61 .30 .59 20R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L275 0 4.34 6. 73 -.29 .18 1.25 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L2 74 0 4.43 7.41 .39 .17 .65 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L2 49 0 4.49 7.30 .29 .10 .74 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L599 0 4.50 7.35 . 34 . 09 1.27 20V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L254 0 4.51 7.52 .51 .10 .71 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. PENDULUM TESTER

LI 4 8 0 4.52 6.51 -.49 -.02 1.37 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 9 5 0 4.52 7. 34 .33 .07 1 .34 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 82L 0 4.53 7.26 . 25 . 05 .75 2 OT TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LJ5 6 0 4 .57 5. 37 -1.62 -.20 1.24 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 28 0 4 .59 7.40 .40 • 01 .87 20T TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 9 1 P 0 4.59 7.30 .31 -.00 .93 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L376 0 4 .64 7.70 .71 -.00 .90 20P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 62 0 4.65 7.42 .43 -.04 1 . 04 20T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. PENDULUM TESTER

LI 08 0 4.68 5.94 -1.04 -.24 .73 2 OP TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L362 0 4 .68 7.38 • 40 -.08 1 .39 20 R TENSILE STRENGTH. PRIMARILY PRINTING PAPERS. PENDULUM TESTER

L241 0 4.70 7.61 .62 -.07 .79 20 R TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 03 0 4 .70 7

.

7 6 . 78 -.05 .83 20 R TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L21 3 0 4.70 7.30 .31 -.1 1 1 .30 20T TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. PENDULUM TESTER

L393 0 4.71 7.40 .42 -.11 .85 2 0 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 2 1 0 4.ee 7. 89 .92 -.20 .88 20 P TENSILE STRENGTH. PRIMARILY PRINTING PAPERS, PENDULUM TESTER

LI 89 0 4.89 7.69 .72 -.25 1 .30 20 R TENSILE STRENGTH, PRIMARI LY PRINTING PAPERS, PENDULUM TESTER

L3 3 0 * 5.04 5.64 -1.30 -.64 1.26 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L2 59 0 5.12 6.79 -.15 -.58 1 .47 2 OP TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L37 0 0 5.15 7.78 . 85 -.50 .69 20 P TENSILE STRENGTH, PRIMARILY PRINTING PAPERS, PENDULUM TESTER

L321 0 5.20 7.77 . 85 -.55 1.38 20V TENSILE STRENGTH, PRIMARILY PRINTING PAPERS. PENDULUM TESTER

GMEANS

:

4.55 7.00 1 .00 95% ELLIPSE

:

2.21 . 70 %ITH GAMMA - 83 DEGREES

28
KIL0NEWT0N/M

TENSILE STRENGTH, PENDULUM TYPE

SAMPLE B95 = 4.55 K I L0NEWT0N/M SAMPLE H43 - 7.00 K I L0NENT0N/M

KIL0NENT0N/M

I

1 1 1 1 1 1 1 1 1

1 6 8 10 12 14 16 18 20 22 24 26

LB/15 MM

29
REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T25-1 TABLE 1 TENSILE ENERGY ABSORPTION, JOULES PER SQUARE METER - PACKAGING PAPER

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

LAB SAMPLE

B56 KRAFT

147 GRAMS PER SQUARE METER

SAMPLE

H09 KRAFT

147 GRAMS PER SQUARE METER TEST D. 20

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

LI 22 132.4 36.6 5.e4 14.7 1 . 06 249.9 57. 3 4.61 52.4 1.82 2 5P * LI 22

LI 26 97.2 1.4 .22 17.2 1.23 198.1 5. 5 .44 32.2 1 .12 25G 0 LI 26

LI 51 104.5 8.7 1.39 18.0 1 . 29 202.4 9.8 .79 35. 2 1 .2 2 2 5F 6 LI 51

LI 74 90.9 -5.0 -.79 17.5 1.26 188.5 -4.1 -.33 33.1 1.15 2 5 Y 0 LI 74

LI 82 96.7 .9 .14 1 0.5 .75 196.5 3.9 .31 24.8 .86 2 5B a LI 82 L234B 102.0 6.2 .98 18.6 1.33 224.9 32.3 2.60 32.6 1.13 25B o L234B

L237B 102.1 6.2 .99 14.9 1 . 06 1 84.9 -7.7 -.62 28.9 1 • 00 25B 0 L237B

L24 3 91.0 -4.8 -.76 10.2 . 73 186.0 -6.6 -.53 29.4 1.02 25Z o L243

L250 95.1 -.7 -.11 12.2 . 88 189.9 -2.7 -.22 20.9 .73 25A a L250

L26 5 94.0 -1.8 -.29 12.7 .91 175.7 -16.9 -1 .36 23.3 .81 25E a L265 L267 82.4 -13.4 -2.14 13.2 .95 178.6 -14.0 -1.13 32. 6 1 .13 25F o L26"7 L26 8 2602.9 2507. C 399.97 591 .8 42. 44 6220.4 6027.

8

485.46 1 034.

7

35.93 25F u L268

L273 52.2 -43.6 -6.96 5.8 • 42 120.7 -71.9 -5.79 16.0 .56 25F * L2 73 L280 95.1 -.7 -.12 11.5 . 83 198.0 5.4 .44 25.9 .90 25B a L280

L31 2 127.5 31.7 5.C5 13.9 .99 242.0 49.4 3 .98 39.4 1 .37 2 5

J

L312

L3 1 8 94.9 -.9 -.15 12.9 .92 195.8 3.2 .26 23.5 .82 2 5A 6 L31 8 L33 6 105.4 9.6 1.53 11.9 . 85 196.7 4. 1 .33 31 .

0

1.08 25A a L336

L580 90.2 -5.6 -.89 13.9 1.00 180.3 -12.3 -.99 29.7 1.03 2 5C o L580

GR. MEAN - 95. 8 JOULES/SQ M GRAND MEAN • 192.6 JOULE S/SQ M TEST DETERMINATIONS - 20

SD MEANS - 6.3 JOULES/SQ M SD OF MEANS

AVERAGE SDR • 13.9 JOULES/SQ M GR. MEAN - 6.56 FT. LB/SC FT GRAND MEAN TOTAL NUMBER OF LA BORA TOR IE S REPORTING • 18

• 12.4

13.19

JOULES/SQ M AVERAGE SDR

FT. LB/SQ FT

- 28.8

14 LABS IN JOULES/SQ

GRAND

M MEANS

Best Values: H56 95 + 10 joules per square meter

H09 190 + 15 joules per square meter

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

273, 312.

Data from the following laboratories were not understood: 268.

30
REPORT NO. 49S TAPP I COLLABORATIVE REFERENCE PB0G8AM SEPTEMBER 1977 ANALYSIS T25-1 TABLE 2 TENSILE ENERGY ABSORPTION. JOULES PER SQUARE METER - PACKAGING PAPER

TAPPI S1ANLARD 7494 OS-70. TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS COORDINATES AVG C6DE F B56 B09 MAJOR MINOR R.SDfi VAR PROPERTY— -TEST I NSTRUMENT-- -CONDITIONS

L273 « 52.2 120.7 -82.5 16.5 .49 25 F TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/FLAT JAWS

L2 67 0 82. 4 178.6 -17.7 7.8 1 • 04 25F TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/FLAT JAWS

L580 G 90.2 180. 3 -13.5 1 . 1 1.01 25C TENSILE ENERGY ABS. * PACKAGING PAPER, LINE/LINE JAWS

LI 7 4 G 90.9 188.5 -5.5 3.3 1.20 25Y TENSILE ENERGY ABS. .PACKAGING PAPER, LINE/FLAT JAWS

L24 3 G 91.0 186. 0 -7.9 2.3 .88 25Z TENSILE ENERGY ABS. , PACKAGING PAPER, LINB/LINE JAWS

L265 G 94. 0 175.7 -16.5 -4.1 .86 25 E TENSILE ENERGY ABS. . PACKAGING PAPER, FLAT/FLAT JAWS

L31 8 G 94.9 195. e 2.7 2.0 .67 25A TENSILE ENERGY ABS. .PACKAGING PAPER, FLAT/FLAT JAWS

L2 8 0 G 95. 1 198.0 4.8 2.5 .86 25B TENSILE ENERGY ABS. . PACKAGING PAPER, LINE/FLAT JAWS

L250 G 95. 1 189.9 -2.8 -.2 .80 25A TENSILE ENERGY ABS. .PACKAGING PAPER, FLAT/FLAT JAWS

LI 82 G 96.7 196.5 4.0 .5 .81 25B TENSILE ENERGY ABS. . PACKAGING PAPER. LINE/FLAT JAWS

LI 26 G 97.2 198.1 5.6 .6 1.17 25G TENSILE ENERGY ABS. . PACKAGING PAPER, LINE/LINE JAWS

L234B 0 1 02.0 224.9 32.5 5.2 1.23 25H TENSILE ENERGY ABS. . PACKAGING PAPER, 2-PIN STRAIN CAGE

L237B G 102.1 184.9 -5.

1

-8.5 1.03 25H TENSILE ENERGY ABS. . PACKAGING PAPER, 2-PIN STRAIN GAGE

LI 5

1

G 104.5 202.4 12.2 -4.8 1.26 25F TENSILE ENERGY ABS. . PACKAGING PAPER, LINE/FLAT JAWS

L336 G 105.4 196.7 7.2 -7.6 .97 25A TENSILE ENERGY ABS. . PACKAGING PAPER, FLAT/FLAT JAWS

L31 2 * 127.5 242.0 57.2 -13.0 1.18 25 J TENSILE ENERGY ABS. .PACKAGING PAPFR. LINE/FLAT JAWS

LI 22 * 132. 4 249.9 66.3 -14.9 1.44 25P TENSILE ENERGY ABS. .PACKAGING PAPER, PATTERNED FLAT JAWS

L2 68 * 2602.9 6220.4 6521 .2 -307.4 39.18 25F TENSILE ENERGY ABS. , PACKAGING PAPER, LINE/FLAT JAWS GMEANS

:

95.8 192.6 1 .00 95* ELLIPSE: 38.0 13.6 WITH GAMMA - 7 C DEGREES

31
T .E .A .

,

PACKAGING PAPERS

LD

Ln

LD

t

LD I— * Ll_ CO o

co

CD

LD

(XI

'

LD

LDO

SAMPLE H56 = 96.

SAMPLE H56 = 6 .56

J0ULES/SQ M FT .LB/SQ FT

SAMPLE H09 = 193. J0ULES/SQ M SAMPLE H09 = 13.19 FT. LB/SQ FT

CDCD • C\i O

C\J DJ

CD

(X)

CD

CD

(XJ CD

CO

CD CO OD -

CD CD ~D 00

CD

ro

(JD

CD

LD -I

q-) + .X,« NOT IN GRAND MEANS

CD

3= ANALYSIS T 25-

1

Q_

CL

CO

50 60

4.0

o o

©

©

o

o

o

©

©

_L

©

©

© ©

©

SRMPLE H56

70 80 90 100

J0ULES/SQ M

110 120 130 140

5-0 6.0 7.0

ET. LB/SQ ET

8.0 9.0

32
REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 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)

LAB SAMPLE

B95 HEAT

91 GSAMS

SET OFFSET BOOK

. PER SQUARE METER

SAMPLE

H43 91 GRAMS

PRINTING

PER SQUARE METER TEST D. - 20 CODE MEAN DEV N.DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI 00 38. 0 -3.2 -.99 4.3 . 85 88.2 6.3 .44 6.6 .79 26 A 0 LI 00

LI 15 43 . e 2.4 .74 3.6 .72 88.1 6.3 .44 4. 1 .49 2 6C 0 LI 15

LI 1 8 42.9 1.7 .52 4.6 .92 93.1 11.3 .78 7.4 .88 26E 0 LI 18

LI 2

1

37.7 -3.S -1 . C8 5.9 1.18 87.8 5.9 .41 7.6 .90 26D 0 LI 21

LI 22 3.2 -38.0 - 11.73 .5 .10 7.3 -74. 6 -5.16 .7 .09 26P ft LI 22

LI 39 37,5 -3.7 -1.15 6.0 1.20 67.9 -13.9 -.96 9.3 1.12 26H e LI 39

LI 59 41.9 .7 .21 8.5 1 .69 58.5 -23.3 -1.61 13.5 1 .62 26F 0 LI 59

LI 63 41.7 .5 .15 3.5 .69 84.7 2.9 .20 11.6 1 . 39 26 J 0 LI 63

LI 8 5 39.0 -2.2 -.68 5.9 1.17 91 .2 9. 4 .65 6.6 .79 2 6C O LI 85 L206 42.4 1.1 .35 2.6 .51 90.0 8.2 .57 4.9 . 59 26Y 0 L2 06

L2 31 37.4 -3.9 -1.20 6.5 1.29 62.8 -19.0 -1.32 15.2 1 . 82 26E a L231 L250 46.8 5.5 1.70 4.2 .83 97.5 15.7 1 .09 6.3 .76 26A a L250

L255 46. 0 6.7 2.08 5.8 1.15 109.8 27.9 1 .93 8.0 .95 26P a L2 55 L309 4.3 -36.9 - 11.40 .7 . 14 1 1 .6 - T 0 • 3 -4.86 2.6 .31 26A « L309

L31 8 43.1 1.9 .58 5.6 1.11 95.1 13.2 .92 7.7 .92 26A 0 L31 8 L378 42.8 1.6 .50 3.7 .74 75.2 -6.7 -.46 7.7 .92 26A a L378

L39 3 36.4 -4.6 -1 .49 3.8 .75 75.5 -6.3 - .43 6.4 .76 26V a L393

L567 42.2 1.0 .30 5,4 1 .07 82.2 • 4 .03 5. 8 .69 26 A a L567

L575 41.7 .5 . 14 5.3 1 .06 65.6 -16.2 -1 .12 15.1 1 .81 26B a L575 L587 40.4 -.8 -.25 6.0 1.19 NO DATA EEPOfiTED FOR SAMPLE H43 26C M L5 87

L59 2 39.1 -2.2 -.67 5.3 1 .06 59.6 -22.2 -1.54 6. 8 .82 26G a L592

GR. MEAN • 41 .

2

JOULES/SQ U GRAND MEAN - 81.8 JOULES/SQ M TEST DETERMINATIONS - 2 ( SD MEANS • 3.2 JOULES/SQ M i AVERAGE SDR - 5.0

GR. MEAN - 2 o 82 5 FT. LB/SC FT TOTAL NUMBER OF LABORATORIES REPORTING

SD OF MEANS JOULES/SQ M GRAND MEAN

21

- 14.4 5.605

JOULES/SQ M AVERAGE SDR

FT. LB/SQ FT

- 8. 3 18 LABS IN JOULES/SQ

GRAND

M MEANS

Data from the following laboratories were not understood: 122, 309.

33
EEP6ET NO. ASS TAPPI COLLABokAT I VE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS 126-1 TABLE 2 TENSILE ENERGY ABSORPTION, JODLBS PER SQUARE METER - PRINTING PAPER

TAPPI STANEARD T494 03-70, TENSILE BREAKING PROPERTIES OF PAPER 4 PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS C0ORD’(NATES AVG CODE F B95 H43 MAJOR MINOR fi.SDfi VAR PROPERTY-- -TEST I N ST RUNE NT-- -CONDI TION S

LI 22 u 3.2 7.3 -78.9 27.9 .09 26 P TENSILE ENERGY ABS. .PRINTING PAPERS, PATTERNED FLAT JAWS

L305 tt 4. 3 11.6 -74.5 27.4 .23 26A TENSILE ENERGY ABS. ,PRI NTING PAPERS, FLAT/FLAT JAWS

L393 0 36.4 75.5 -6.9 4.0 .76 26V TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/FLAT JAWS

L2 31 O 37.4 62. 8 -19.4 1.4 1 .55 26E TENSILE ENERGY ABS. , PRI NTING PAPERS, FLAT/FLAT JAWS

LI 39 e 37.5 67.9 -14.3 1.9 1.16 26H TENSILE ENERGY ABS. .PRINTING PAPFRS, 2-PIN STRAIN CAGE

LI 2 1 e 37. 7 87.8 5.4 4.3 1 .04 26 D TENSILE ENERGY ABS. . PRINTING PAPERS. 2-PIN STRAIN GAGE

LI 00 e 38.0 88 . 2 5.9 4.0 • 82 26 A TENSILE ENERGY ABS. . PRINTING PAPERS, FLAT/FLAT JAWS

LI 85 0 39.0 91.2 9 .

0

3.4 .98 26C TENSILE ENERGY ABS. . PRINTING PAPERS, LI NB/LINB JAWS

L592 0 39.1 59.6 -22.3 -.8 .94 26G TENSILE ENERGY ABS. .PRINTING PAPERS, LINE/LINE JAWS L587 M 40.4 1.19 26C TENSILE ENERGY ABS. .PRINTING PAPERS, LINB/LINE JAWS

L575 0 41.7 65.6 -16.0 -2.6 1 .43 26B TENSILE ENERGY ABS. .PR INTING PAPERS, LINE/FLAT JAWS

LI 6 3 0 41.7 84.

7

2.9 -.1 1.04 26 J TENSILE ENERGY ABS. . PRINTING PAPERS, LINE/FLAT JAWS

LI 59 0 41 .9 58.5 -23.0 -3.7 1.65 26P TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/FLAT JAWS

L56 7 0 42. 2 82.2 .5 -.9 • 88 26 A TENSILE ENERGY ABS. .PRI NTINC PAPERS, FLAT/FLAT JAWS

L206 0 42.4 90.0 8.3 -. 1 .55 26 Y TENSILE ENERGY ABS. .PRINTING PAPERS. LINE/FLAT JAWS

L37 9 0 42. 8 75.2 -6.4 -2.5 .83 26 A TENSILE ENERGY ABS. .PRINTING PAPERS, FLAT/FLAT JAWS

LI 18 0 42. 9 93.1 11.5 -.2 .90 26E TENSILE ENERGY ABS. .PRINTING PAPERS. FLAT/FLAT JAWS

L318 0 43.1 95. 1 13.4 -.1 1.01 26A TENSILE ENERGY ABS. , PRINTING PAPERS, FLAT/FLAT JAWS

LI 1 5 0 43.6 88.1 6.6 -1.6 • 60 26C TENSILE ENERGY ABS. . PRINTING PAPERS, LTNE/LINE JAWS

L250 0 46. 8 97.5 16.3 -3.4 .79 26 A TENSILE ENERGY ABS. .PRINTING PAPERS, FLAT/PLAT JAWS

L2£ t 0 48.0 109.8 28.6 -3.0 1.05 26 P TENSILE ENERGY ABS. , PRINTING PAPERS, PATTERNED FLAT JAWS

CUE AN.j} • 41.2 81 . e 1 .00 95* ELLIPSE: 40.5 7.3 1 ITH GAN 1MA • 82 DEGREES

34
^ .1 T .E -A . , PRI NTING PAPERS

»» 1 SAMPLE B95 = 41. J0ULES/SQ M SAMPLE H43 z 82. J0ULES/SQ M SAMPLE B95 = 2.8 FT.LB/SQ FT SAMPLE H43 = 5.6 FT .LB/SQ FT

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10 20 30 40 50 60

J0ULES/SQ M

70 80 90 100

i 2

FT.LB/SQ FT

35
REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T28-1 TABLE 1 ELONGATION TO BREAK. PERCENT - PACKAGING PAPER

TAPPI STANDARD T4S4 OS-70. TENSILE BREAKING PROPERTIES OF PAPER A PAPERBOARD (CONSTANT RATE OF ELONGATION)

SAMFLE KRAFT SAMPLE KRAFT TEST D . • 20 LAB H56 147 GRAMS PEG SQUARE METER H 09 147 GRAMS PER SQUARE METER

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

Ll 22 2. 04 .30 1.32 .29 1.95 5.01 .74 1 .90 .75 1 .51 28P a LI 22 H 26 1.57 -.17 -.74 .15 1.00 4.12 -.16 -.40 .45 .90 28C e LI 26

L151 1 .96 .22 .98 .12 . 83 4.54 .27 .69 .45 .92 2 8B e LI 51 LI 82 1.60 -.14 -.61 .11 .76 4.14 -.13 -.34 .30 • 60 28B e LI 82 L243 1 .48 -.26 -1 . 14 .10 . 68 3.92 -.35 -.90 .38 .76 2 8C 6 L243

L26 5 1 .67 -.07 -.29 .13 .87 4.02 -.25 - .65 .38 .77 28A 0 L265

L267 1 .56 -.10 -.81 .16 1.11 3.95 -.32 -. 83 • 52 1.05 28B a L267

L268 1 .55 -.19 -.84 .17 1.15 4.00 -.27 -.69 .44 .88 28B a L268

L280 1.72 -.02 -.08 .10 .70 4.. 33 . 06 .14 .34 .69 28B 0 L280

L31 2 2.32 .50 2.57 .15 .99 4. 66 .39 1.01 1 .40 2.83 28B a L312

L31 8 1 .75 .01 .04 .11 .73 4.67 .39 1.01 .32 .65 28A o L31 8 L324 1.53 -.21 -.92 .13 . 86 3.93 -.34 -.88 .40 .81 28P a L324

L336 1 .83 .09 . 39 .14 .97 4.93 .65 1 .68 .39 .79 28A a L336

L5 8 0 1.77 .03 . 14 .21 1 .44 3.85 -.42 1 .07 .33 .67 2 8C a L580

L582 1.73 -.00 -.02 .14 .95 4.02 -.26 -.66 .58 1.18 28A 6 L582

GR. MEAN - 1.74 PERCENT GRAND MEAN - 4.27 PERCENT TEST DETERMINATIONS - 20

SD MEANS - .23 PERCENT SD 8F MEANS - .39 PERCENT 15 LABS IN GRAND MEANS

AVERAGE SDR • .15 PERCENT AVERAGE SDR - .50 PERCENT

LI 5 3 2. 12 .38 1 .69 • 14 .94 4.69 .42 1 .08 .42 .85 2 6Q Ll 53 TOTAL NUMBER OF LA BORA TOR IE £ REPORTING - 16

Best Values: H56 1,7 + 0.4 percent

*

H09 4.2 + 0.7 percent.

REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T28-1 TABLE 2 . ELONGATION TO BREAK, PERCENT - PACKAGING PAPER

TAPPI STANDARD T494 03-70. TENSILE BREAKING PROPERTIES OF PAPER 4 PAPERBOARD (CONSTANT RATE OF ELONGATION)

LAB MEANS CaaRDINATES AVG CODE F B56 H09 MAJOR M INOR R. SDR VAR PfcaPERTY— -TEST INSTRUMENT---*CONDITIONS

L243 0 1 .48 3.92 -.43 • 08 .72 20C ELONGATION, PACK AO I NG PAPER, LOAD CELL. LINE/LINE JAWS

L324 0 1 .53 3.93 -.40 • 04 . 84 20P EL0NGATI ON, PACKAGING PAPER, LOAD CELL, PATTERNED FLAT JAWS

L26 8 o 1.55 4.00 -.32 .05 1 .01 28 B ELONGAT ION, PACKAGING PAPER, LOAD CELL. LINE/FLAT JAWS

L26 7 0 1 .56 3.95 -.37 .02 1 • 08 2 9B ELONGATION. PACK AG I NG PAPER. LOAD CELL, LINE/FLAT JAWS

Ll 26 0 1 .57 4.12 -.21 .08 .95 28C ELONGAT I ON, PACK AG I NG PAPER, LOAD CELL. LINE/LINE JAWS

Ll 82 e 1.60 4.14 -.1 8 .07 • 68 28B ELONGATION, PACKAGING PAPER. LOAD CELL. LINB/FLAT JAWS

L26 5 0 1 .67 4.02 -.26 -.05 .82 28 A ELONGAT ION, PACK AG I NG PAPER, LOAD CELL. FLAT/PLAT JAWS

L2 8 0 0 1 .72 4.33 • 04 .04 • 69 28B ELONGATION, PACKAGING PAPER, LOAD CELL. LINE/FLAT JAWS

L582 o 1.73 4.02 -.23 -.11 1.06 28 A ELONGATION, PACKAGING PAPER, LOAD CELL, FLAT/FLAT JAWS

L31 8 a 1 .75 4.67 .36 .16 .69 28A ELONGATION, PACKAGING PAPER. LOAD CELL. FLAT/FLAT JAWS

L58 0 a 1 .77 3.85 -.36 -.21 1 *06 28C ELONGATION, PACKAGING PAPER, LOAD CELL, LINE/LINB JAWS

L336 a 1 .83 4.93 .63 • 21 . 68 28A ELONGATION. PACKAGING PAPER, LOAD CELL. FLAT/FLAT JAWS

Ll 51 a 1 .96 4.54 .34 -.08 .87 28 B ELONGATION. PACKAGING PAPER. LOAD CELL. LINE/FLAT JAWS

Ll 22 a 2.04 5.01 . 80 .05 1.73 28P ELONGATION, PACKAGING PAPER, LOAD CELL, PATTERNED FLAT JAWS

Ll 53 2.12 4.69 .55 -.16 .90 20Q ELONGAT ION, PACK AG I NG PAPER, PENDULUM, PATTERNED FLAT JAWS

L31 2 a 2.32 4.66 • 61 -.35 1.91 28 B ELONGATION, PACKAGING PAPER, LOAD CELL. LINE/FLAT JAWS

GMEANS: 1.74 4.27 1.00 95% ELLIPSE: 1 .22 • 41 WITH GAMMA - 64 DEGREES

36
PERCENT

EL0NGAT I 0N T0 BREAK, PACKAGING PAPER

SAMPLE H56 = 1.74 PERCENT SAMPLE H09 = 4.27 PERCENT

Cn + , X , » NOT IN GRAND MEANS

O

CC ANALYSIS T28-1

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2 0-4 0.6 0.8 1.0 1.2 1-4 1.6 1-8 2-0 2-2 2-4 2-6 2-8 3-0 3 PERCENT

37
RFP0RT NO • 49

S

TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T29-1 TABLE 1 ELONGATION TO BREAK, PERCENT - PRINTING PAPER

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

SAMPLE BEAT SET OFFSET BOOK SAMPLE PRINTING TEST D. 1 20 LAB B9 5 91 GEAHS PES SQUARE METER H43 91 GRAMS PER SQUARE METER

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

LI 00 1.335 -.174 -1.26 • C93 .71 1.775 -.197 -.69 .107 .75 29A O LI 00

LI 1 8 1.527 .019 .14 .114 .87 2.049 . 077 .27 • 109 .77 29 A 0 LI 18

LI 2

1

1.417 -.092 -.66 .182 1.39 1.9 82 . 01 0 • 04 • 131 .92 29D a LI 21

LI 22 1.575 .066 .48 . 161 1.23 2.205 .233 .81 .150 1 .05 29P 6 LI 22 L141T 1.322 -.186 -1.35 .124 .94 1 . 534 -.438 1 .53 .133 .94 29D a LI 41 T

LI 7 6 1.554 .046 .33 .208 1 • 58 2.323 .351 1 .23 • 203 1 .43 29B 0 LI 76

LI 8 5 1.430 -.079 -.57 .153 1.16 1 .920 -.052 -.18 .083 .59 29C e LI 85

LI 9 OR 1 .460 -.049 -.35 .105 . 80 2.049 .077 .27 . 074 .52 29A e LI 90P

L2 31 1.815 .306 2.22 .127 .97 2.015 .04 3 .15 . 21 8 1.53 2 9A * L23

1

L2f 5 1 . 578 .069 • 50 .126 .96 2.199 .227 .79 .122 .85 29P 0 L255

L309 1.670 .162 1.16 .171 1.30 2.531 .559 1 .96 .3^8 2.66 29A 0 L3 09

L31 8 1.568 .060 .44 .086 .66 2.071 .099 .35 .1 06 .74 29A 0 L31 8 L344 1.706 • 198 1.44 .124 .94 2.1 37 .165 .58 .134 .94 29A a L344

L37 8 1.496 -.012 -.09 .076 .58 1 .812 -.160 -.56 .115 • 81 29A a L378

L56 7 1.370 -.139 -1.01 .133 1.01 1.902 -.070 -.25 • 104 .73 29A 0 L567

L57 5 1 . 474 -.034 -.25 .116 .89 1.625 -.34 7 1.22 .232 1 .63 29B 6 L575 L587 1.480 -.029 -.21 .115 .68 NO DATA REPORTED FOR SAMPLE H43 29C M L5 87 L59 2 1.344 -.165 -1.19 .124 .95 1 .398 -.574 2.01 . 096 .67 29C a L592

GR. MEAN 1.509 PERCENT GRAND MEAN - 1.972 PERCENT TEST DETERMINATIONS - 20

SD MEANS - .138 PERCENT SD OF MEANS .286 PERCENT 17 LABS IN GRAND MEANS AVERAGE SDR •

• 131 PERCENT AVERAGE SDR • .142 PERCENT

L242 1.61 C .101 .74 . 192 1.46 2.420 .448 1 .57 • 132 .93 29R L242

L484 1.322 -.186 -1.35 .156 1.19 1.787 -.185 -.65 .272 1.91 29R L4 84 TOTAL NUMBER eF LABORATORIES REPORTING • 20

Best Values: B95 1.5 +

H43 1.9 +

0.2 percent

0.5 percent

38
RE PORT NO. 49S TAPP I COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T29-1 TABLE 2 ELONGATION T0 BREAK. PERCENT - PRINTING PAPER

TAPPI STANDARD T494 03-70. TENSILE BREAKING PROPERTIES OF PAPER « PAPERBOARD (CONSTANT RATE OF ELONGATION I

LAB MEANS COORDINATES AVG CODE F B95 B43 MAJOR MINOR R. SDR VAR PROPERTY— -TEST I NSTRUMENT—-CONDI TIONS

L141T 0 1,322 1.534 -.475 • 024 .94 29 D ELONGATION, PRINTING PAPERS, LOAD CELL, 2-PIN STRAIN GAGE

L484 1 .322 1 . 787 -.238 • 111 1 .55 29 R ELONGATION, PRINTING PAPERS, PENDULUM, FLAT/FLAT JAWS

LI 00 0 1.335 1.775 -.245 .095 .73 29A ELONGATION, PRINTING PAPERS, LOAD CELL. PLAT/FLAT JAWS

L592 O 1.344 1.398 -.596 -.043 .8i 29C ELONGATION, PR IN TING PAPERS, LOAD CELL. LINE/LINE JAWS

L567 0 1 .370 1.902 -.114 • 106 . 87 29 A ELONGATION, PRINTING PAPERS, LOAD CELL. FLAT/FLAT JAWS

LI 2 1 0 1.417 1.982 -.02 2 .089 1.15 29 D ELONGATION, PRINTING PAPERS, LOAD CELL, 2-PIN STRAIN GAGE

LI 85 0 1 .430 1.920 -.076 .056 .88 29C ELONGATION, PRINTING PAPERS, LOAD CELL, LINE/LINE JAWS

LI 9 OR 0 1 .460 2.049 .056 .072 .66 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L575 0 1.474 1.625 -.338 - .088 1.26 29B ELONGATION, PRINTING PAPERS, LOAD CELL, LINE/FLAT JAWS

L587 M 1 .480 .88 29C ELONGATION, PRINTING PAPERS, LOAD CELL, LINE/LINE JAWS

L378 0 1.496 1.812 -.154 -.044 .69 29 A ELONGATI e N, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

LI 1 8 0 1.527 2.049 .078 .009 • 82 29A ELONGATION, PRINTING PAPERS, LOAD CELL. FLAT/FLAT JAWS

LI 76 0 1.554 2.323 .345 .077 1.51 29 B ELONGAT ION, PRINTING PAPERS, LOAD CELL, LINE/FLAT JAWS

L31 8 0 1 .568 2.071 • 114 -.022 .70 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

LI 22 0 1.575 2.205 .241 .018 1.14 29P ELONGATION, PRINTING PAPERS, LOAD CELL, PATTERNED FLAT JAWS

L265 0 1 .578 2.199 .237 .013 .91 29 P ELONGATION, PRINTING PAPERS, LOAD CELL, PATTERNED FLAT JAWS

L242 1 .610 2.420 .455 .059 1.20 29R ELONGATION, PRINTING PAPERS, PENDULUM, FLAT/FLAT JAWS

L309 0 1 .6^0 2.531 .581 .040 1.98 29A ELONGATION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L344 0 1.706 2. 137 .223 - .129 .94 29 A ELONGAT ION, PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

L231 » 1.815 2.015 .145 -.273 1.25 29A ELONGATION , PRINTING PAPERS, LOAD CELL, FLAT/FLAT JAWS

GMEANS

:

1.509 1.972 1 .00 95% ELLIPSE: .847 .270 WITH GAMMA - 69 DEGREES

39
PERCENT

EL0NGRT I 0N T0 BREAK, PRINTING PAPER

SAMPLE B95 =1.51 PERCENT

i i i 1

SAMPLE H43 = 1-97 PERCENT

j i i i i

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ANALYSIS T29-1

LU

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0.4 0.6 0.8 1.0 1.2 1.4 1.6 1-8 2.0 2.2 2-4 2-6

PERCENT

40
REPORT NO. 49 SEPTEMBER 1977

S

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T30-1 TABLE 1 FOLDING ENDURANCE (MIT), DOUBLE FOLDS

TAPPI STANDARD T511 SU-69

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 1 5 LAB B46 64 G BAMS PER SQUARE METER HI 1 89 GRAMS PER SQUARE METER

C0DE MEAN DEV N.DEV SDB R. SDR MEAN DEV N.DEV SDR R. SDP VAR F LAB L100M 58. -16. - .80 15. .95 62. -60. -1.35 17. .43 30M 0 LI 00M

LI 0 ON 46 • -28. -1 .39 13. .83 59. -63. -1.41 18. .47 3 ON 0 LI 00

N

LI 05 78. 4. .20 10. .67 147. 25. .56 52. 1 .34 3 0M 0 LI 05

LI 1 8 75. 1 . .05 15. .97 1 06. -16 . -.36 26. .66 30D 0 LI 1 8

LI 21 71 . -4. -.17 16. 1.01 91 . -30. -.68 24. .62 3 OM 0 LI 21

LI 2

2

121 • 47. 2.31 37. 2. 37 164. 42. .94 51 . 1.32 2 0M « LI 22

LI 2 4 64 . -10. -.51 13. .83 139. 17. .39 46. 1 .18 30N o LI 24

LI 50 77 . 3. .14 18. 1. 14 122. 0. .01 40. 1 .02 30M 0 LI 50

LI 5 8 48. -2 6. -1.28 12. .77 72. -49. -l .1 0 42. 1 .09 30N o LI 58

LI 59 91 . 17. .83 18. 1. 18 190. 68. 1 .53 56. 1.45 3 ON 0 LI 59

LI 62 75. 1 . • 04 19. 1.21 113. -9. - .20 57. 1 .46 3 OM 0 L 1 62

LI 6

3

61 . -13. -.66 10. • 61 126. 4. . 09 33. .85 3 ON o LI 63

LI 76 20. -54. -2.66 6. .37 8. -114. -2.54 3. . 06 30N u L 1 76

LI 82M 100, 26. 1 .28 22. 1 • 38 196. 75. 1.67 28. .72 30M 0 L182M

LI 85 83. 9 . .43 10. .62 158. 37. .82 28. .73 3 ON 0 LI 85

LI 90C 80. 6. .29 25. 1 . 58 111. -11 . -.25 37. .94 30N 0 LI 90C L223F 85. 1 1 . .55 13. . 86 133. 11 . .25 39. 1 .02 3 OM 0 L223F

L2 3 0 54. -20. -.97 16. 1 • 04 112. -10. -.22 39. 1.01 30N 0 L230

L232 89. 15. .75 17. 1 • 08 135. 13. .29 47. 1.21 3 ON 6 L232 L236 65. -9. -.43 9. .55 58. -64. -1 .43 16. .41 3 ON O L236 L238A 51 . -23. -1.13 16. 1 • 01 94. -27. -.61 36. .93 3 ON 0 L238A

L238B 70. -4 . -.18 17. 1.10 131 . 10. • 21 44. 1.12 3 OD L238B

L24 3 75. 1 . .07 12. .77 191. 69. 1 .54 62. 1.59 3 OD o L243

L2 54 71. -3. -. 16 1 3. .83 130. 8. • 18 49. 1 .26 3 OM 0 L254

L262 87. 13. .65 29. 1.84 136. 15. .33 75. 1.93 30N 0 L262

L27 5 136. 62. 3.09 21 . 1.34 226. 1 04. 2.34 1 04. 2.68 3 ON * L2->5 L27 8 59. -15. -.73 13. .86 64. -57. -1 .28 20. .52 3 OC 0 L278

L2 79 73. -1 . -.04 10. • 62 148. 26. .59 16. .41 3 ON 0 L2 79 L285A 99. 24. 1.21 23. 1 .47 142. 20. .45 66 . 1 .69 3 ON 0 L285A L285B 101 . 27. 1.35 33. 2.09 135. 13. .30 76. 1 .95 3 ON o L285B

L299 41 . -33. -1 .63 9 . . 58 43. -79. -1.76 15. .40 3 ON 0 L2 99

L3 21 92. 18. • 91 18. 1.17 1 82. 61 . 1 .35 40. 1 .02 3 OM fl L321 L326N 160. 86. 4.27 18. 1.16 173. 52 . 1.16 28. .73 3 ON X L326N

L339 38. -36. -1.76 10. .67 51. -70. -1.57 18. . 47 3 ON 0 L339

L341 79. 5. .23 17. 1.10 126. 4 . .10 48. 1 .23 3 OC 0 L34

1

L366A 53. -21 . -1.02 11. .70 67. -55. -1.23 25. .63 30N 0 L366A

L37 6 65. -9. -.45 13. .82 76. -46. -1 .02 22. . 58 3 ON 0 L376

L378 72. -2. -.08 20. 1 . 29 173. 52 . 1.16 43. 1 .12 3 ON L378

L38 8 70. -4. -.21 13 . .85 155. 33. .74 57. 1.47 3 ON 0 L388

L390 37. -37. -1.84 7. .42 48, -74 . -1 .66 22. .55 30N 0 L390

L396M 68. -6. -.29 16. 1.05 98. -24. -.53 28. .72 30N 0 L396M

L53

1

82 • 7. .37 24. 1.54 145. 23 . .51 71 . 1 .83 3 ON 0 L531 L565 79. C .26 16. 1.00 148. 26. .58 26. .67 30N 0 L565

L567 94 . 20. 1.01 13. . 86 1 63. 41 . .92 50. 1 .30 3 ON 0 L567

L5 89 65. -9. -.46 17. 1 . 06 83. -38. -.86 35. .91 30N 0 L5 89 L599 78. 3. .17 16. 1.01 106. -15. -.34 43. 1.11 3 OC o L599

GR. MEAN - 74. DOUELE FOLDS GRAND MEAN - 122. DOUBLE FOLDS TEST DETERMINATIONS - 15

SD MEANS - 20. DOUBLE FOLDS SD OF MEANS - 45. DOUBLE FOLDS 44 LABS IN GRAND MEANS AVERAGE SDR - 16. DOUBLE FOLDS AVERAGE SDR • 39. DOUBLE FOLDS

LI 4 3 160. 86. 4.28 31 . 1.97 138. 16. .36 52. 1 .34 3 OT LI 43 L182S 1 55. 81. 4.03 34. 2. 18 135. 13 . .29 57 • 1 .46 3 0 S LI 823

L19 0D 154. 79. 3.94 37. 2. 40 131. 10. .21 48. 1 .24 3 OS LI 90D

L2 8 0 99. 25. 1.24 42. 2. 67 91 . -31 . -.68 34. .89 3 OK L280

L32 6S 152. 78. 3.87 25. 1 . 59 111. -11 . -.24 43. 1.11 30S L326S L366B 1 35. 61 . 3.02 47. 2.99 106. -16. -.35 50. 1.29 3 OT L3 66B L396S 166 . 92 . 4.58 30. 1.93 196. 75. 1.67 63. 1 .61 3 OT L396S

L58

1

148. 74. 3.67 24. 1 . 56 Ill . -10. -.23 38. .98 3 OT L581 TOTAL NUMBER OF LABORATORIES REPORTING • 54

Best Values: H46 85 double folds

Hll 180 double folds

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

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.

41

Please see page 44 of this report for a demon- stration of this proposal.
REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T30-1 TABLE 2 FOLDING ENDURANCE (MIT), DOUBLE FOLDS

TAPPI STANDARD T511 StJ-69

LAB MEANS COORD INATES AVG

C0DE F H46 HI 1 M A JO fi MINOR R . SDK VAR PROPERTY-- -TEST INSTRUMENT- --CONDITIONS

LI 76 tf 20. 8. -125. 9. .22 30N F0LD ING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L39 0 0 37. 48. -82. 8. .49 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L339 0 38. 51 . -78. 8. .57 3 ON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L299 0 41 . 43. -85. 2. .49 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 00N 0 46. 59. -69. 3. .65 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

LI 58 0 48. 72. -55. 6. .93 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L238A 0 51 . 94. -34. 11. .97 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN L366A 0 53. 67. -59. -1 . .67 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L230 0 54. 112. -16. 15. 1 .03 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI OOM 0 58. 62. -62. -7. .69 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L278 0 59. 64. -59. -7. .69 30C FOLDING ENDURANCE. MIT, CIRCULATING FAN IN CEILING

LI 63 0 61 . 126 . -1 . 14. .73 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

LI 24 0 64. 139. 12. 16. 1.01 30 N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L589 0 65. 83. -39. -5. .98 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L37 6 0 65. 76. -4 6. -8. .70 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L236 0 65. 58. -63. -15. .48 30 N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL PAN

L396M 0 68. 98. -24. -3. . 89 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L388 0 70. 155. 29. 16. 1 .16 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L238B 0 70. 131. 8. 7. 1.11 30D FOLDING ENDURANCE. MIT, MODIFIED DRIVE TO REDUCE HEATING

LI 21 0 71. 91. -30. -8. .81 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L254 0 71 . 130. 6. 6. 1 .04 30 M FOLDING ENDURANCE. MIT, WITH CENTRIFUGAL FAN

L37 8 0 72. 173. 48. 20. 1.20 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L27 9 0 73. 148. 24. 10. . 52 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 62 0 75. 113. -8. -4. 1.34 30 M FOLDING ENDURANCE. MIT. WITH CENTRIFUGAL FAN

LI 18 0 75. 106. -15. -7. .81 30D FOLDING ENDURANCE. MIT, MODIFIED DRIVE TO REDUCE HEATING

L243 0 75. 191 . 65. 24. 1.18 30 D FOLDING ENDURANCE. MIT, MODIFIED DRIVE TO REDUCE HEATING

LI 50 0 77. 1 22. 1. -2. 1.08 30M FOLDING ENDURANCE. MIT, WITH CENTRIFUGAL FAN

L59 9 0 78. 106. -13. -9. 1.06 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

LI 05 0 78. 147. 25. 5. 1 .00 30 M FOLDING ENDURANCE. MIT, WITH CENTRIPUGAL FAN

L341 0 79. 126. 6. -3. 1.17 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

L565 0 79. 148. 26. 5. .83 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L19 0C 0 80. 111. -8. -9. 1.26 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L53

1

0 82. 145. 24. 1 • 1.68 30N FOLDING ENDURANCE. MIT. NO CENTRIFUGAL FAN

LI 85 0 83. 158. 37. 5. .68 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L223F 0 85. 133. 14. -6. .94 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN L262 0 87. 136. 16. -7. 1 .89 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L232 0 89. 135. 18. -9. 1.15 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

LI 59 0 91 . 190. 70. 9. 1.31 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L321 0 92 . 182. 63. 5. 1 .09 30 M FOLDING ENDURANCE. MIT. WITH CENTRIFUGAL FAN

L56 7 0 94. 163. 46. -4. 1.08 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL PAN

L265A 0 99. 1 42 i 26. -15. 1.58 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L2 8 0 99. 91 . -19. -34. 1.78 30K FOLDING ENDURANCF, KOHLER-MOL I

N

LI 82 M 0 100. 1 96. 79. 3. 1 . 05 30 M F0LDING ENDURANCE. MIT, WITH CENTRIFUGAL FAN

L2 8 5B 0 101 • 135. 22. -21. 2.02 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

LI 22 * 121. 164. 56. -28. 1 . 85 30 M FOLDING ENDURANCE. MIT, WITH CENTRIFUGAL FAN L366B 135. 106. 7. -63. 2.14 30T FOLDING ENDURANCE. SCHOPPER. TMI L275 * 136. 226. 120. -20. 2. 01 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L581 148. 111. 17. -73. 1.27 30T FOLDING ENDURANCE, SCHOPPER, TMI L326S 152. 111. 18. -77. 1.35 30 S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

L190D * 154. 131 . 38. -71. 1.82 30S FOLD ING ENDURANCE, SCHOPPER, LEIPZIG

LI 82 S 155. 135. 41 . -71 . 1.82 30S FOLDING ENDURANCE. SCHOPPER, LEIPZIG

L326N X 160. 173. 79. -61. .95 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 4 3 160. 138. 46. -75. 1 .65 30T FOLDING ENDURANCE. SCH0PPER, TMI L396S 166. 196. 103. -59. 1.77 30T FOLDING ENDURANCE, SCHOPPER, TMI GMEANS: 74. 122. 1 .00 95* ELLIPSE: 123. 29. WITH GAMMA - 68 DEGREES

42
/

FOLDING ENDURANCE ( MIT

)

SAMPLE H46 = 74. D0UBLE FOLDS SAMPLE HU = 122. DOUBLE FOLDS

DOUBLE FOLDS

43
REPORT NO. 49S TAPP I COLLABORATIVE REFERENCE PROGRAM ANALYSIS T30-2 TABLE 1 FOLDING ENDURANCE (MIT)

DATA IS LOG( BASE 1 0 ) OF TBE DOUBLE FOLD MEASUREMENT

SEPTEMBER 1977

SAMPLE PRINTING SAMPLE PRINTING TEST D. * 15 LAB H 46 84 GRAMS PEB SQUARE METER HI 1 69 GBAMS PEB SQUARE METER

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

L1C0M 1.749 -.094 - .78 • 119 1.23 1.775 -.250 -1 .36 .116 .75 3 OM O LI 00M

LI OON 1.647 -.196 -1 .62 .120 1.24 1.7 49 -.275 -1 . 50 . 131 . 85 30N 0 LI OON

LI 0

5

1 .889 .046 .38 . 060 .62 2.141 • 1 16 .63 .158 1 .02 3 OM a LI 05

LI 18 1.868 .025 • 21 .078 .81 2.010 -.014 -.08 • 114 .74 30D 0 LI 18

LI 21 1.835 -.008 -.06 .120 1.24 1 • 946 -.078 -.43 .116 .75 30M 0 LI 21

LI 22 2.060 .217 1 .79 .148 1.53 2.192 .168 .91 .145 .94 30M 0 LI 22

LI 2 4 1.796 -.047 -.38 .091 • 94 2.118 . 094 .51 .159 1 .03 3 ON 0 LI 24

LI 5 0 1.875 .032 .26 .101 1 • 04 2.069 .044 .24 .125 • 81 30M 0 LI 50

LI 58 1.671 -.172 -1.41 .107 1.10 1.789 - .236 -1.26 .257 1 .67 30N a LI 58

LI 59 1 .950 .107 . 68 .090 .93 2.260 .235 1.28 .137 .89 30N a LI 59

LI 62 1 .860 .018 • 14 • 116 1 .20 1.994 -.031 -.17 .245 1.59 3 OM o LI 62

LI 6 3 1.779 - .064 -.53 • 064 .66 2.086 .061 .33 .115 .74 3 ON a LI 63

LI 76 1.295 -.548 -4.51 .116 1.20 .8 76 -1.148 -6.24 .153 .99 3 ON * LI 76 L182M 3.991 • 148 1 .22 .091 .94 2.289 .265 1.44 . 060 .39 30M a LI 82 M

LI 8 5 1.915 .072 .59 .049 • 51 2.193 .168 .92 .078 .50 30N G LI 85 L190C 1 . 884 . C41 .34 .127 1.31 2.027 • C02 .01 • 122 .79 30N 0 L190C

L223F 1.925 .082 .68 .069 .71 2.104 . 079 .43 .135 .88 30M 0 L223F

L2 3 0 1.719 -.124 -1.02 • 120 1.24 2.024 -.000 -.00 .148 .96 30N a L230

L232 1.942 .099 .82 . 086 .89 2. 1 05 .080 .44 • 151 • 98 30N 0 L232

L2 36 1.81 1 -.032 -.26 . 060 • 61 1.748 -.276 -1 .50 • 112 .73 30N 0 L236 L238A 1.693 -.150 -1.23 . 122 1.26 1.947 -.077 -.42 .160 1 .04 30N 0 L238A

L238B 1 . 837 - .006 -.05 . 099 1.03 2.094 . 069 .38 .154 1.00 30D G L238B

L24 3 1.872 .029 • 24 . C71 .73 2.260 • 236 1 .28 .135 • 88 30D o L243

L25 4 1 .e4 3 -.000 -.00 . 083 • 85 2.083 . 058 .32 .169 1.10 30M 0 L254

L262 1 .916 .073 .60 .158 1.63 2.081 .057 .31 • 221 1 .43 30N 0 L262

L275 2.130 .287 2.36 . C69 .72 2.315 .290 1 .58 • 188 1.22 30N o L275

L27 8 1.763 -.080 -.66 .093 .96 1 .787 -.237 -1.29 .146 .95 30C 0 L278

L2 79 1 . 862 .019 .16 .057 .59 2.167 .143 .78 .048 • 31 3 ON 0 L2^9

L2 85A 1.982 .139 1 • 15 .104 1 . 07 2.1 16 . 092 .50 .174 1.13 3 ON 0 L2 85A L285B 1.985 .142 1.17 • 140 1.44 2.059 .034 .19 .268 1.74 30N 0 L2 85B L299 1.602 -.241 -1 .98 • 108 1.11 1 .602 -.423 -2.30 .173 1.12 30N o L299

L321 1 .958 .115 .95 .088 .91 2. 251 .227 1 .23 . 093 • 61 30M 0 L321 L326N 2.202 .359 2.96 . 047 .48 2.234 • 210 1.14 .069 .45 30N X L326N

L339 1 . 569 -.274 -2.26 .126 1.30 1.684 -.341 -1 .85 .165 1.07 30N 0 L339

L341 1.887 . 044 . 36 . 087 .90 2.069 .045 .24 .175 1 .14 3 00 d L341 L366A 1.719 -.124 -1.02 • 094 .97 1 . 800 -•224 -1.22 .142 • 92 3 ON 0 L366A

L376 1.803 -.039 -.32 .095 .98 1 . 864 -.160 -.87 . 119 .77 30N O L376

L37 8 1.841 -.002 -.01 • 141 1 .45 2.225 • 201 1.09 .117 . 76 30N 0 L378

L388 1 . 8 37 -.0 06 -.05 .083 .86 2.157 . 133 .72 . 1 83 1 .19 3 ON 0 L388

L390 1.561 - .282 -2.32 • 081 . 84 1.630 -.394 -2.14 • 219 1.42 30N 0 L390

L396M 1 • 824 - . C19 - . 16 .091 .94 1.974 -.050 -.27 • 128 .83 3 ON 0 L396M

L531 1.896 .053 .44 .116 1.20 2. 085 .060 .33 .304 I .97 30N 0 L531 L565 1 . 891 .048 .40 . 085 .87 2.163 .139 .76 .075 .49 30N 0 L565

L567 1.971 • I 2 e 1.05 .062 .64 2.184 .159 .87 .177 1.15 30N G L567

L589 1.799 -. 044 -.36 .105 1.08 1 . 862 -.143 -.78 .197 1 .28 3 ON 0 L589

L599 1.881 .03 8 • 31 . 088 • 91 1.979 -.046 -.25 .232 1.51 30C 0 L599

OR. MEAN - 1.843 L6G< 10 ) FOLD GRAND MEAN - 2.024 LOG ( 1 0 ) FOLD TEST DETERMINATIONS - 15

SD MEANS • .121 LOG< 10 ) FOLD SD OF MEANS - .184 LOG ( 1 0 ) FOLD 44 LABS IN GRAND MEANS AVERAGE SDR • .097 LOG( 1 0 ) FOLD AVERAGE SDR • .154 LOG( 1 0 ) FOLD

LI 4 3 2. 198 .355 2.92 . 080 • 82 2.104 .080 .43 . 190 1.23 3 OT LI 43

LI 82 S 2.181 . 338 2.78 • 098 1.01 2. 088 . 064 .35 .203 1.31 3 OS LI 62

S

L190D 2.173 .330 2.72 • 111 1.14 2.093 . 069 .37 .148 .96 30S LI 90D L280 1.969 • 126 1.04 • 148 1.53 1 .926 - .099 -.54 .185 1.20 3 OK L280

L326S 2.177 .334 2.75 . 071 • 74 2.014 -.011 -.06 .177 1 .15 30S L326S

136 6 B 2. 107 .264 2.18 . 145 1 . 50 1 .976 - . 049 -.27 .224 1.45 30T L366B L396S 2.214 .371 3.05 • 084 .86 2.2 74 • 250 1 .36 • 128 .83 30T L396S

L58 1 2. 165 .322 2.65 .070 .73 2.025 • 001 .00 .137 .89 30T L58

1

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 44

and reported as ISO folding endurance.

Raw data

(Folding number

in double folds)

207 166

151 332

260

137 199

230

210 mean of raw data

log (base 10)

of raw data

2.32

2.22

2.18

2.52

2.61

2.14 2.30 2.36

2.31 mean of logs "Folding endurance"
REPORT NO. 49S TAFPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T30-2 TABLE 2 FOLDING ENDURANCE (MIT) DATA IS L0G( BASE 1 0 > OF TBE DOUBLE FOLD MEASUREMENT

LAB MEANS COORDINATES AVG

CODE F B46 HI 1 MAJOR MINOR R. SDR VAR PROPERTY— -TEST INSTRUMENT—-CONDITIONS

LI 76 ft 1.295 .876 -1 .265 -.131 i • 10 30N FOLDING ENDURANCE, MIT, CENTRIFUGAL FAN

L39 0 0 1.561 1 . 630 -.483 .035 i .13 30N FOLDING ENDURANCE, MIT. N6 CENTRIFUGAL FAN

L3 39 0 1 .569 1.664 -.434 .056 i .19 30N FOLDING ENDURANCE, MIT, N6 CENTRIFUGAL FAN

L299 0 1.602 1. 602 -.486 -.015 i • 12 3 ON FOLD ING ENDURANCE, MIT, N6 CENTRIFUGAL FAN

LI OON 0 1.647 1.749 -.337 • 024 i • 04 30N FOLDING ENDURANCE, MIT. N0 CENTRIFUGAL FAN

LI 5

8

0 1 .671 1 .785 -.291 • 024 i .39 30 N FOLDING ENDURANCE, MIT, N0 CENTRIFUGAL FAN

L2 3 8A 0 1 .693 1.947 -.144 • 088 i • 15 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN L366A 0 1 .719 1.600 -.256 -.011 .94 30N FOLDING ENDURANCE, MIT. NO CENTRIFUGAL FAN

L2 30 0 1 .719 2.024 -.065 .105 i • 10 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI OOM 0 1.749 1.775 -.262 -.050 .99 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN L27Q 0 1.763 1 .787 -.244 -.056 .95 30C FOLD ING ENDURANCE, MIT. CIRCULATING FAN IN CEILING

LI 63 0 1.779 2.066 .019 . 087 .70 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 24 0 1 .796 2.116 • 055 .089 .98 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L589 0 1 .799 1.662 -.145 -.037 i • 18 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L376 0 1.803 1. 864 -.157 -.050 • 88 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L2 3 6 0 1.611 1.74 6 -.252 -.117 .67 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L396M 0 1.624 1.974 -.053 -.010 • 89 3 ON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 21 0 l . 835 1.946 -.071 -.034 • 99 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L2 3 8B 0 1.837 2.094 .056 • 041 • 01 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HEATING

L38 8 0 1.837 2.157 • 11 0 .074 i .02 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L3 7 8 0 1 .841 2.225 .171 • 106 i .11 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L25 4 0 1 .843 2. 063 .049 .031 .97 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

LI 62 0 1 .860 1.994 -.017 -.031 i .39 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L279 0 1.862 2.167 • 132 .058 .45 30N FOLDING ENDURANCE, MIT, NO CENTRIPUGAL PAN

LI 18 0 1.868 2.01 0 .001 -.029 .77 30D FOLDING ENDURANCE. MIT, MODIFIED DRIVE TO REDUCE HEATING

L24 3 0 1.872 2.260 • 216 .098 .81 30D FOLDING ENDURANCE, MIT, MODIFIED DRIVE TO REDUCE HEATING

LI 50 0 1 .875 2.065 .054 -.004 .93 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L59 9 0 1.88 1 1.975 -.019 - .056 i • 21 30C FOLDING ENDURANCE, MIT, CIRCULATING FAN IN CEILING

L190C 6 1 .884 2. 027 .023 -.034 i .05 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L341 0 1.887 2.069 • 061 -.014 i • 02 30C FOLDING ENDURANCE. MIT, CIRCULATING FAN IN CEILING

LI 05 0 1 .889 2.141 .123 .022 .82 30M FOLDING ENDURANCE, MIT. WITH CENTRIFUGAL FAN

L565 0 1 .891 2.163 • 144 .031 .68 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L5 3 1 0 1 .896 2.085 .079 -.014 i . 58 3 ON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 85 0 1.915 2. 193 • 181 • 026 • 51 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L262 0 1 .916 2.081 .086 -.033 i .53 3 ON FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L223F 0 1.925 2.104 • 111 -.029 .79 30M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L232 0 1.942 2. 1 05 • 120 -.043 .93 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

LI 59 0 1 .950 2.260 .257 . 031 .91 3 ON FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L32 1 0 1.958 2.251 .253 .020 .76 30 M FOLDING ENDURANCE, MIT, WITH CENTRIFUGAL FAN

L2 8 0 1.969 1.926 -.019 -.159 i .36 30K FOLDING ENDURANCE, KOHLER-MOLIN

L56 7 0 1 .971 2. 1 84 .202 -.026 .90 30N FOLDING ENDURANCE. MIT, NO CENTRIFUGAL FAN

L28 5A 0 1.982 2.116 .151 -.071 i .10 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L285B 0 1.985 2. 059 .103 -.103 i .59 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

LI 82M 0 1.991 2.285 .303 .012 .67 30M FOLDING ENDURANCE

,

MIT, WITH CENTRIFUGAL FAN

LI 22 0 2 .06 0 2.192 .257 -.098 i .23 30 W FOLDING ENDURANCE, MIT. WITH CENTRIFUGAL FAN L366B 2.107 1.976 .096 -.251 i .48 3 OT FOLDING ENDURANCE, SCHOPPER, TMI

L27 5 0 2.130 2.315 .397 -.093 .97 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN

L581 2.165 2. 025 .169 -.274 .81 30T FOLDING ENDURANCE, SCHOPPER, TMI

L19 0D 2.173 2.093 .231 -.246 .05 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

L326S 2. 177 2.014 .165 -.291 .94 30S FOLDING ENDURANCE, SCHOPPER, LEIPZIG

LI 82 S 2.181 2.088 .231 -.255 i • 16 30S FOLDING ENDURANCE. SCHOPPER, LEIPZIG

LI 4 3 2. 198 2.104 .2 53 -.261 i . 03 30T FOLDING ENDURANCE. SCHOPPER, TMI

L32 6N X 2.202 2.234 .366 -.197 .47 30N FOLDING ENDURANCE, MIT, NO CENTRIFUGAL FAN L396S 2.214 2.274 .407 -.186 .85 30T FOLDING ENDURANCE, SCHOPPER, TMI GMEANS: 1.643 2.024

95* ELLIPSE: .546

1 .00 .149 WITH GAMMA - 58 DEGREES

45
L0GUO)

F0LD

FOLDING ENDURRNCE ( MIT

)

SAMPLE H46 3 1.84 LOG(IO) FOLD SAMPLE Hll 3 2-02 LOG(IO) FOLD

46
REPORT NO. 49 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T35-1 TABLE 1 GURLEY STIFFNESS RESULTS EXPRESSED IN SIANDASD GURLEY UNITS: MILLIGRAMS FOR A 1X3 INCH SPECIMEN (ACTUAL LENGTH 3.5 INCHES)

1 LAB

SAMPLE

B64 PRINTING

106 GRAMS PEE SQUARE METER SAMPLE

E66 PRINTING

108 ORAMS PBR SQUARE METER TEST 1 o CODE MEAN DEV N.DEV SDJ R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

L100 406. 19 . .75 14. .79 526. 70. 2.22 35. 1 .18 3 50 * LI 00 LU8 3 86. -0. -.01 16. .90 463. 8. .25 28. .93 36G 0 LI 18

LI 21 446. 60. 2.31 41. 2. 37 500. 45. 1 .41 41 . 1.39 35G 0 LI 21

LI 22 397. 11 . .42 20. 1.17 460. 5. .15 20. .68 350 0 LI 22

LI 32 342. -44. -1.72 15. . 85 412. -43 . -1 .37 42. 1.43 36G 0 LI 32

LI 39 382. -4. -.17 15. .88 442. -14. -.43 22. .76 35G 6 LI 39

LI 4

8

371 . -15. -.58 11 . .66 421. -35. •1.10 11. . 38 3 5G 0 LI 48

LI 53 399 . 12. .47 11 . .66 439. -17. -.53 30. 1.01 350 0 LI 53

LI 59 360 . -27. -1.04 20. 1.13 417. -39. -1.22 32. 1.08 350 0 LI 59

LI 62 385. -1 . -.05 16. .93 448. -7 . -.22 24. .81 350 0 LI 62

LI 63 375 . -1 1 . -.44 30. 1.72 449. -6. -.20 55. 1.85 350 0 LI 63

LI 83 421 . 34 . 1.33 10. . 60 51 5. 60. 1 .89 42. 1.43 3 50 u LI 63 L190C 418. 32. 1.23 10. .58 451. -4. -.13 9. .29 350 a L190C

L195 412. 26 . 1.00 18. 1.04 501 . 46. 1 .45 23. . 76 35G a LI 95 L223 379. -7. -.29 11. .61 443. -12. -.39 26. .88 350 0 L223

L22 4 378. -9. -.34 16. .94 459. 4 . .13 19. .64 350 0 L224

L232 382. -5. -.19 13. . 76 507. 52. 1 .64 41 . 1 . 39 35G * L232 L236 370, -16. -.62 23. 1.30 439. -16. -.50 35. 1.18 35G a L236

L241 411 . 24. .95 18. 1 . 04 487, 32. 1 .01 60. 2.03 3 50 0 L241 L249 377. -10. -.37 8. .45 426. -30. -.93 18. .61 3 5G 0 L249

L25 4 348. -39. -1.51 10. .60 415. -41 . -1.29 34. 1.17 35G 0 L2 54 L260 390. 4. .15 10. .58 461 . 6. .19 12. .42 3 5G a L260

L268 333. -53. -2.06 19. 1.11 410. -45. -1.42 20. .69 3 50 0 L268

L285 410. 24. .93 17. .96 467. 11 . .35 21 . .70 35G 0 L2 85 L291 395. 9. . 35 9. .50 479. 24. .75 46. 1 .56 35G o L291 L297 350. -37. -1.42 12. .68 415. -40. -1 .27 18. .61 3SG 0 L297

L30 8 383. -3 . -.11 15. .87 446. -9. -.30 34. 1.14 3SG 0 L308

L3 2 1 368. -19. -.72 8. .49 447. -9. -.27 24. .82 3SG 0 L321 L356 363 • -4 . -.15 19. 1.07 445. -10. -.31 24. .82 350 0 L356

L376 3se. -31 . -1.20 17. .99 419. -37. -1.16 28. .93 35G 0 L376

L37 8 365. -21. -. e3 16. .95 431. -24. -.77 27. .92 350 0 L378

L38 2 426. 39. 1.52 38. 2.17 476. 21 . .66 43. 1 .44 3 5G 0 L382

L39 0 409. 22. .87 31. 1.76 491 . 36. 1.13 34. 1.14 350 0 L390

L396 398. 12. .46 9. . 53 458. 2. . 08 29. .99 350 o L396

L567 427. 40. 1.56 30. 1.72 496. 41 . 1 .29 34. 1.15 3 50 « L567

L575 374. -12. -.48 21. 1.19 432. -23. -.74 40. 1.36 350 0 L575

OR. MEAN • SD MEANS • 3 86. 26. GURLEY UNITS GURLEY UNITS AVERAGE SDR • 17.

GRAND MEAN • SD OF MEANS • GURLEY UNITS

455.

32. GURLEY UNITS GURLEY UNITS AVERAGE SDR • 30.

TEST DETERMINATIONS 10 36 LABS IN GRAND MEANS

GURLEY UNITS

L213 355. TOTAL NUMBER OF

Best Values : H64 H66

-32. -1.23 10. LABORATORIES REPORTING • 390 + 40 Gurley Units

455 + 45 Gurley Units

.55

37 374. -81 . -2.57 4. .13 35B L213

47
REPORT N6. 4 9 S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T35-1 TABLE 2 GURLEY STIFFNESS RESULTS EXPRESSED IN STANDARD GURLEY UNITS: MILLIGRAMS FOR A 1X3 INCH SPECIMEN (ACTUAL LENGTH 3.5 INCHES)

LAB MEANS C00RD INATKS AVG C0DE F H64 H66 MAJOR MINOR R. SDR VAR PROPERTY—-TEST INSTRUMENT ---CONDITIONS

L2 6 8 a 333 . 410. -68. 14. .90 35G STIFFNESS. GURLEY ( UNITS

;

MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

LI 32 0 342. 412. -62 . 8. 1.14 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L254 0 348. 415. -56 . 6. .88 35G ST IFFNESS, GURLEY < UNITS: MG/1 X 3 -ACTUALLY 3.5- TEST PIECE ) L297 0 350. 415. -54. 4. .65 35 G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L21 3 355. 374 . -84 . -25. .34 35 H STIFFNESS, GURLEY ( UNITS

:

MG/1X3 TEST PIECE), 20 C, 65% RH

L376 0 356. 419. -48. 2. .96 35G STIFFNESS, GURLEY ( UNITS: MG/1 X3 -ACTUALLY 3.5- TEST PIECE ) LI 59 d 360. 417. -4 7. -3. 1.11 35G STIFFNESS. GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L37 8 0 365. 431 . -32 . 2. .94 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L321 0 368. 447. -18. 9. .65 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L2 36 0 370. 439. -2 2. 3. 1.24 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE )

LI 4 8 0 371 . 421. -37. -10. .52 35G STIFFNESS, GURLEY < UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L575 0 374. 432. -26. -5 • 1.27 35G ST IFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) LI 63 0 375. 449. -12. 5. 1.79 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L24 9 0 377. 42 6. -29. -11. .53 35G STIFFNESS, GURLEY ( UNITS : MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L224 0 378 . 459. -2 . 9. .79 35G STIFFNESS. GURLEY ( UNITS : MG/1X3 -ACTUALLY 3.5- TEST PIECE )

L22 3 0 379. 44 3. -14 . -2. .74 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L2 32 * 382. 507. 38. 36. 1 . 08 35G STIFFNESS, GURLEY ( UNITS: MG/1 X3 -ACTUALLY 3.5- TEST PIECE ) LI 39 0 382. 442. -13. -5. .82 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L356 0 383. 445 . -10. -3. .95 35G STIFFNESS, GURLEY ( UNITS : MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L3 08 0 383. 446. -9 . -3. 1 .00 35G STIFFNESS. GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE )

LI 62 0 385. 448. -6 . -3 . .87 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) LI 1 8 0 386. 463. 6. 5. .91 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

L260 0 390. 461 . 7. 1 • .50 35G STIFFNESS. GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L291 0 395. 479. 24. 7. 1.03 35G STIFFNESS, GURLEY ( UNITS: MG/1 X3 -ACTUALLY 3.5- TEST PIECE ) LI 22 0 397. 460. 1 o. -6. .93 35G STIFFNESS. GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L396 0 398 . 458. 9 . -8. .76 35G STIFFNESS, GURLEY ( UNITS

;

MG/1X3 -ACTUALLY 3.5- TEST PIECE > LI 53 0 399. 439. -6 . -20. .83 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) LI 00 * 406. 526. 67 . 28. .98 35G STIFFNESS, GURLEY ( UNITS

:

MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L390 0 4 09 . 491 . 42. 4 . 1 .45 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L2 85 0 410 . 467. 24 . -12. .83 35G STIFFNESS, GURLEY ( UNITS

:

MG/1X3 -ACTUALLY 3.5- TEST PIECE

)

L241 0 411 . 487. 40. 0. 1 . 54 35 G STIFFNESS, GURLEY ( UNITS: MG/1 X3 -ACTUALLY 3.5- TEST PIECE ) LI 9 5 0 412. 501 . 52. 8. .90 35G STIFFNESS. GURLEY ( UNITS: MG/1 X3 -ACTUALLY 3.5- TEST PIECE

)

L19 0C 0 418. 451 . 16. -28. .43 35G STIFFNESS, GURLEY ( UNITS

:

MG/1X3 -ACTUALLY 3.5- TEST PIECE ) LI 83 0 421. 515. 68. 10. 1.01 35G STIFFNESS, GURLEY ( UNITS: MG/1 X3 -ACTUALLY 3.5- TEST PIECE ) L382 0 426. 476. 41 . -18. 1. 81 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L56 7 0 427. 496. 57. -7. 1 .43 35G STIFFNESS, GURLEY ( UNITS: MG/1X3 -ACTUALLY 3.5- TEST PIECE ) L 1 2

1

0 446 . 500. 72 . -20. 1 .88 35G STIFFNESS, GURLEY ( UNITS

:

MG/1X3 -ACTUALLY 3.5- TEST PIECE ) GMEANS: 3 86. 455. 1 .00 95% ELLIPSE : 10 1 • 32. WITH GAM MA - 52 DEGREES

48
GURLEY

UNITS

360

380

400

420

440

460

480

500

520

540

560

STIFFNESS, GURLEY

SAMPLE H64 = 386. GURLEY UNITS SAMPLE H66 = 4S5 . GURLEY UNITS

GURLEY UNITS

49
REP0PT NG. 49 S IAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T 36-1 TABLE 1 TABER STIFFNESS

TAPPI S I A NLA RE T489 OS-76. RESULTS EXPRESSED IN GRAM CENTIMETERS

SAMPLE BLEACHED BACKING SAMPLE KRAFT ENVELePE TEST D. 10 LAB E38 93 GRAMS PER SQUARE METEH E28 121 GRAMS PER :SQUARE METER

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

L107A 2.40 -.10 -.32 • 16 .97 22.40 15.23 1 8.57 2.32 6.56 36T 0 LI 07A

LI 2 2 2.51 .01 .02 • 22 1.36 7.92 .75 .91 .32 .89 36T 0 LI 22

LI 2 3 2.21 -.29 -.91 .14 . 85 18.00 10.83 13.21 .67 1 .89 36T 0 LI 23

LI 2 6 1.90 -.60 l.es .10 .65 5.18 -1 .99 -2.42 .38 1 .07 36T 0 LI 26

LI 49 2.62 .12 .36 .26 1 . 63 7.32 .15 .18 .19 .55 36T 0 LI 49

LI 50 2.05 -.45 1 .40 .25 1.56 11.70 4.53 5.52 1 .70 4.82 36T 0 LI 50

LI 58 2.23 -.27 -.85 .09 . 57 5.99 -1.18 -1 .44 .33 .94 36T 0 LI 58

LI 6 3 2.42 -.08 -.24 • 21 1.26 7.20 .03 .03 .31 .87 36T 6 LI 63 L173B 2.70 .20 .61 .00 .00 8.33 1.16 1 .41 .13 .35 36T 0 L173B

LI 76 2. 80 .30 .92 • 26 1.61 7.65 .48 .58 .47 1 .34 36T 0 LI 76

LI 82 2.07 -.44 1.35 • 21 1.33 7.18 .01 • 01 .52 1 .47 36T 0 L 1 82 L207 4.32 1 • 62 £ .64 .39 2.44 8.73 1 .56 1 .90 .71 2.02 36T 0 L207

L228 2.25 - .25 -.79 • 10 .61 6.09 -1 .08 -1.32 .22 • 62 36T 0 L228

L242 2 .90 • 4 C 1 .23 .36 2.23 8.67 1.50 1 .83 .58 1 .64 36T 0 L242

L243 3.07 .57 1.75 .27 1.67 7.35 .18 .22 .63 1 .77 36T 0 L243

L260 2.41 -.09 -.28 .07 .42 6.85 - • 32 -.39 • 12 . 35 36T 0 L260

L262 2.41 -.09 -.29 .06 .35 6.89 -.28 -.34 .08 .23 * 36T 0 L262

L26 8 2.50 -.00 -.01 .00 .00 7.44 .27 .33 .13 . 36 36T 0 L268

L273 3.37 .67 2.68 .18 1.14 7.47 .30 .36 .28 .79 36T * L273

L274 2.40 -.10 -.32 .21 1.31 7.00 -.17 -.21 .53 1 • 49 36T 0 L2 74

L281 2.36 -.15 -.45 .15 .95 6.42 -.76 -.92 .35 .99 36T 0 L281 L29 0 2.37 -.13 -.41 . 1 1 .66 19.95 1 2.78 15.58 1 .32 3.74 36T 0 L290

L31 a 2.23 -.27 -.84 .13 . 80 7.92 .75 .92 .33 .95 3 6T 0 L318

L321 2.50 -.00 -.01 .00 .00 8.15 .98 1.19 . 82 2.32 36T 0 L321

L32 4 2 .47 -.03 -.10 .18 1 .10 6.56 -.61 -.75 .33 .94 36T 0 L324 L239 .16 -2.34 7.25 .02 .10 16.52 9.35 1 1 .41 .43 1 • 22 36T 0 L3 39 L57 0 2.52 .02 .05 .13 • 82 6.69 -.48 -.59 .43 1.23 36T 0 L570

L58 0 2.43 -.07 - .23 .37 2.31 7.49 .32 .39 .23 . 66 36T 0 L580

GR. MEAN • 2.50 TABER UNITS GRAND MEAN - 7.17 TABER UNITS TEST DETERMINATIONS * 10

SD MEANS - . 32 TABER UNITS SD 0F MEANS - .82 TABER UNITS 22 LABS IN GRAND MEANS AVERAGE SDR * .16 TABER UNITS AVERAGE SDR .35 TABER UNITS

L25 0 1 .76 1 >1 4 1 2.30 .10 .60 6. 55 -.62 -.76 • 28 .8*0 36U L250

TOTAL NUMBER OF LABORATORIES REPORTING • 29

Best Values: E38 2.5 + 0.5 Taber Units

E28 7.3 + 1.3 Taber Units

Data from the following laboratories appear to be

off by a multiplicative factor: 107A, 123, 150,

207, 290, 339.

50
REPORT NO. 49S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 19 ANALYSIS T36-1 TABLE 2 TABER STIFFNESS

TAPPI STANDARD T489 OS-76, RESULTS EXPRESSED IN GRAM CENTIMETERS

LAB C0DE F MEANS

E38 E26 COORDINATESMAJOR MINOR

AVG

ft . SDR VAR PROPERTY --TEST

L339 0 • 16 16. 52 8.53 4.49 .66 36 T STIFFNESS, TABER

L250 1 .76 6.55 -.78 .58 .70 36U STIFFNESS, TABER,

LI 26 0 1 .90 5. 18 -2.07 .11 • 86 36T STIFFNESS, TADER

LI 50 * 2.05 11.70 4.29 1.51 3.19 36T STIFFNESS, TABER

LI 82 0 2.07 7.18 -. 1 0 .43 1.40 36T STIFFNESS, TABER

LI 2 3 0 2.21 18. 00 10.45 2.85 1.37 36 T STIFFNESS, TABER

LI 58 0 2.23 5.99 -1.21 -.01 .75 3oT STIFFNESS, TABER

L31 8 0 2.23 7. 92 .67 .44 .87 36T STIFFNESS, TABER

L228 0 2.25 6.09 -1.11 -.01 • 61 36T STIFFNESS, TABER

L281 0 2.36 6. 42 -.77 • o s> .97 36T STIFFNESS, TABER

L29 0 0 2.37 19.95 12.38 3.16 2.20 36 T STXPFNESS, TABES

LI 07

A

0 2.40 22.40 14.77 3.71 3.77 36T STIFFNESS, TABER

L2 7 4 0 2.40 7.00 -.19 • 06 1.40 36T STIFFNESS, TABER

L262 0 2.41 6. 89 -.29 .03 .29 36T STIFFNESS, TABER

L260 0 2.41 6. 85 -.33 .01 .39 36T STIFFNESS, TABER

LI 6 3 0 2.42 7.20 .01 .06 1 .06 36T STIFFNESS, TABER

L58 0 0 2.43 7.49 .29 .15 1.49 36T STIFFNESS, TABER

L324 0 2.47 6.56 -.60 -.1 1 1 .02 36T STIFFNESS, TABER

L268 0 2.50 7.44 .26 .07 .18 36T STIFFNESS, TABER

L321 0 2.50 8.15 .95 • 24 1.16 36T STIFFNESS, TABER

LI 22 0 2.51 7.92 .73 . 1 7 1.13 36T STIFFNESS, TABER

L57 0 0 2.52 6.69 -.46 -.13 1 • 02 36T STIFFNESS, TABER

LI 49 0 2.62 7. 32 .17 -.08 1.09 36T STIFFNESS, TABER

L173B 0 2.70 8.33 1. 17 .08 .18 36T STIFFNESS, TABER

LI 7 6 0 2.80 7. 65 .53 -.17 1.48 36T STIFFNESS, TABER

L2 42 0 2.90 8.67 1.55 -.03 1 .93 36T STIFFNESS, TABER

L243 0 3.07 7.35 .31 -.51 1 .72 36T STIFFNESS, TABER

L27 3 # 3.37 7.47 .49 -.77 .96 36T STIFFNESS, TABER

L2 07 0 4.32 8.73 1 . 94 -1 .40 2.23 36T ST IFFNESS, TABER

GMEANS

:

2.50

95% 7.17

ELLIPSE: 2.28 .71

1 .00 WITH GAMMA - 76 DEGREES

51
TABER

UNITS

STIFFNESS, TABER

SAMPLE E38 =2-5 TABER UNITS SAMPLE E28 =7.2 TABER UNITS

TABER UNITS

52
BEPflRT NO. 49S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T49-1 TABLE 1 SURFACE PICK STRENGTH, IGT

SAMPLE B I FINISH PRINTING SAMPLE PRINTING TEST D. - 4 LAB EOS 112 GRAMS1 PER :SQUARE METER H78 151 GRAMS PER :SQUARE METER

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

LI 07 42. E -5.1 -.28 8.6 2.78 77.0 3.9 • 15 • 0 .00 491 0 LI 07

LI 21 372.3 324.9 17.85 79.7 25. 81 NO DATA REPORTED FOR ,SAMPLE H78 49P 11 LI 21

LI 22 39.2 -8.4 -.46 1.3 .43 64.1 -9.1 -.36 2.6 • 61 49D 0 LI 22

LI 49 39.7 -7.9 -.44 .9 .28 54.2 -19.0 -.75 2.6 • 59 49L 0 LI 49

LI 82 I 25. 9 -21.7 -1.19 .9 .28 28.7 -44.4 -1 .75 • 3 • 08 49Q 0 LI 821

LI 63 39.3 11.7 .64 1 .4 .45 NO DATA REPORTED FOR ;SAMPLE H78 49Q M LI 83 L19 0C 54. 5 6.5 .38 1.8 .60 79.1 5.9 .23 8.0 1.83 49T 0 L190C

L2 07 62.7 15. 1 .83 7.4 2.38 92.7 19.6 .77 8.0 1 .04 491 0 L2 07 L24 2 32. 3 -15.3 -.84 4.6 1.50 58.0 -15.2 -.60 3.2 .74 49 P 0 L242

L27 7 43.4 -2.3 -.12 2.3 .75 88.3 15.2 .60 4.1 .94 491 0 L277

L278 114.7 67.1 3.68 17.9 5.79 151.0 77.9 3.07 9.7 2.22 49D 0 L278

L28 0 3.7 -43.9 -2.41 .0 .00 3.7 -69.4 -2.73 • 0 .00 49U 0 L290

L291 59.6 12.0 .66 2.8 .90 NO DATA REPORTED FOR ,SAMPLE PR

8

49V M L291 L382 54. 1 6.4 .35 2.1 .69 NO DATA REPORTED FOR ;SAMPLE H78 49V M L382

L388 86. 4 38.8 2.13 .0 . 00 116.1 43.0 1 .69 10.3 2.37 49Q 0 L388

L4B4 495.0 447.4 24.58 19.1 6.20 717.5 644.4 25.38 34.0 7.81 49P 0 L4 84

GB. MEAN 47.

6

KP CM/SEC GRAND MEAN - 73.1 KP CM/SEC TEST DETERMINATIONS - 4 SD MEANS 18.2 KP CM/SEC SD OF MEANS - 25.4 KP CM/SEC 9 LABS IN GRAND MEANS

AVERAGE SDK 3.1 KP CM/SEC AVERAGE SDR - 4.4 KP CM/SEC

TOTAL NUMBER OF LABORATORIES SEPOHIINO - 16

The following laboratories were excluded from the grand means because no viscosity values were

reported: 280, 484.

TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS T49-1 SURFACE PICK STRENGTH, IGT CALCULATED

MEANS IN LAB MEANS VISCOSITY kP cm/sec assumed

CODE E08 H78 UNITS in Poise FLUID E08 H78 viscosity

L107 42.5 77.0 kP cm/ sec 681 PIB from IPC 42.5 77.0 L121 372 600+ f t/min — IPI #2 Ink — —

L122 39.2 64.1 kP cm/ sec 230 IPI #3 Ink 39.2 64.1 L149 923 1260 mm/ sec 430 Polybutene 39.7 54.2 L158 Instrument out of order

L182 25.9 28.7 kP cm/sec 146 IGT Low Vise Oil 25.9 28.7 L183 59.3 No Pick kP cm/sec 210 IGT Low Vise Oil 59.3 —

L190 54.5 79.1 kP cm/ sec 734 IPC Fluid 54.5 79.1 L207 62.7 92.7 kP cm/ sec — — 62.7 92.7 L242 1925 3450 mm/ sec 168 IGT Low Vise Oil 32.3 58.0

L243 NO DATA

L274 NO DATA

L276 NO DATA

L277 45.4 88.3 kP cm/sec 432 Polybutene 45.4 88.3

L278 114.7 151.0 kP cm/sec 753 #5 Ink 114.7 151.0

L280 3.71+ 3.71+ m/sec Low Oil — —

L291 59.6 No Pick kP cm/ sec 625 Polybutane 59.6 —

L337 NO DATA

L382 54.1 No Pick kP era/ sec 625 Polybutane 54.1 —

L388 86.4 116.1 kP cm/sec 720 Oil 86.4 116.1

L484 495 717.5 mm/ sec — IGT Oil — ___ L590 NO DATA

L694 NO DATA

53
RF PORT N6 . 49S TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T50-1 TABLE 1 SURFACE PICK STRENGTH. WAX NUMBER

TAPPI STANIARE T459 OS-75, SURFACE STRENGTH OF PAPES (WAX PICK TEST) SAMPLE HI F IN I SB PRINTING SAMPLE PRINTING TEST D.- 5 LAB E08 112 G BAMS PER SQUARE METER H70 151 GRAMS PER SQUARE METER

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

LI 05 9.60 .52 .77 .55 1.20 8*60 -1.05 1 • 44 .55 1 .31 5 OW 0 LI 05

LI 22 8.80 -.28 -.42 .45 .98 9.60 .15 .20 .45 1 .07 5 0W 0 LI 22

LI 58 8.60 - .4e -.72 .55 1.20 10.00 .35 • 48 .71 1.70 5 OW 6 LI 58

LI 62 9.00 -.08 -.13 .00 .00 9.80 .15 .20 .45 1.07 5 OW 0 LI 62

LI 73A 8.00 -1.08 1.52 .00 .00 7.00 -2.65 3.63 • 00 .00 50W * LI 73A

LI 82 W 8.40 -.68 1.02 .55 1.20 9.20 -.45 -.62 .45 1 .07 50W 0 L182W

LI 83 9.60 .52 .77 .55 1.20 10.20 .55 .75 .45 1.07 SOW 0 LI 83

LI 9 5 8.80 -.28 -.42 .45 .98 8.80 -.85 1.17 .45 1 .07 50W 0 LI 95

L213 9.40 .32 .47 .55 1.20 10.20 .55 .75 .45 1.07 50W 0 L213

L22 5 9 .00 -.08 -.13 .00 .00 10.00 . 35 • 48 .00 .00 50W 0 L225

L22 8 8.60 -.4e -.72 .55 1.20 8.60 -1.05 1.44 .55 1.31 5 OW 0 L228

L230 9.40 .32 .47 .55 1.20 9.00 -.65 -.09 .00 .00 SOW 0 L230

L23 6 10.00 .92 1.36 .00 .00 10.60 .95 1 .30 .55 1.31 5 OW 0 L236

L243 8.20 -.88 1.32 .84 1 . 84 8.80 -.85 1.17 .45 1.07 50W 0 L243 L274 9.00 -.08 -.13 .71 1.55 10.00 .35 .48 • 00 .00 5 OW 0 L274

L285 10.00 .92 1.36 .00 .00 10.00 .35 • 48 .00 .00 5 OW 0 L2e5

L33 9 10.80 1.72 2.56 .45 .98 12.00 2.35 3.22 .00 . 00 50W M L339

L36 6 10.20 1.12 1 .66 .84 1.84 10.80 1.15 1.57 .45 1.07 50W 0 L366

L378 9.60 .52 .77 .55 1.20 10.60 1.15 1.57 .84 2.01 SOW 0 L3 78 L39 0 7.60 -1.48 2.21 .55 1.20 9.00 -.65 -.89 .71 1.70 SOW 0 L390

L567 8.80 -.28 -.42 .45 .98 9.20 -.45 -.62 .45 1.07 5 OW 0 L567

GR . MEAN - 9.oe WAX NUMBER GRAND MEAN • 9.65 WAX NUMBER TEST DETERMINATIONS • 5 SD MEANS • .67 WAX NUMBEB SD 0F MEANS • .73 WAX NUMBER 19 LABS IN GRAND MEANS AVERAGE SDR • .46 WAX NUMBEB AVERAGE SDR • .42 WAX NUMBER

TOTAL NUMBER OF LABORATORIES REPORTING * 21

Best Values: E08 9.0 + 1.0 Wax number

E78 9.7 + 0.9 Wax number

The following laboratories were omitted from the grand means because of extreme test results: 173A,

339.

54
RL PORT N0. 49S TaPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS TSO-1 TABLE 2 SURFACE PICK STRENGTH * WAX NUMBER

TAPP I STANDARD 1459 0S-75. SURFACE STRENGTH 0F PAPER (WAX PICK TEST)

SEPTEMBER 1977

LAB

CODE F MEANS

E08 H78 C00RDINATES

MAJ0H MIN0R

AVG

R. SDR VAR PROPERTY-- TEST I NSTRUMENT---C0NDI TI0N

S

L39 0 0 7.60 9 .00 -1.47 .69 1 .45 50W SURFACE PICK STRENGTH. WAX ( TAPPI T459 es7s > LI 73 A ft 8.00 7.00 -2.71 -.93 . 00 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 OS75 » L243 0 8.20 8. 80 -1.22 • 11 1.46 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T459 OS75 ) LI 62W 0 8.40 9.20 -. 79 • 22 1 .14 SOW SURFACE PICK STRENGTH. WAX ( TAPPI T459 0S75 ) LI 58 0 8.60 10.00 -. 06 .59 1.45 SOW SURFACE PICK STRENGTH, WAX ( TAFPI T459 as7s

)

L2 2 8 0 8.60 8.60 -1.11 -•33 1 .26 50 W SURFACE PICK STRENGTH. WAX ( TAPPI T459 AS75 t L567 0 8.80 9.20 -. 53 -.08 1.03 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 8S75 ) LI 2 2 0 8.80 9.80 -. 08 • 31 1 • 03 50W SURFACE PICK STRENGTH. WAX ( TAFPI T4 59 as75 ) LI 9 5 0 8.80 8.80 -. 83 -•35 1 . 03 50W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 as75

)

L274 0 9.00 10.00 • 21 • 29 .78 50 W SURFACE PICK STRENGTH. WAX ( TAPPI T4 59 es75

)

L225 0 9.00 10.00 • 21 .29 .00 50 W SURFACE PICK STRENGTH. WAX ( TAPPI T459 8S75 ) LI 62 0 9.00 9.80 . 06 .16 .54 SOW SURFACE PICK STRENGTH, WAX ( TAPPI T459 aS75 ) L230 0 9.40 9.00 -•28 -.67 • 60 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T459 as75 ) L21 3 0 9.40 10.20 • 62 • 12 1.14 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 8S75 ) LI 83 0 9.60 10.20 .75 -•03 1.14 50W SURFACE PICK STRENGTH, WAX ( TAFPI T459 aS75 )

LI 05 0 9.60 8.60 -.45 -1 .08 1 .26 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 es7s

)

L37 8 0 9.60 10.80 1.20 .37 1.61 50W SURFACE PICK STRENGTH. WAX ( TAPPI T459 es7s

)

L236 0 10.00 10.60 1.32 -.07 .66 SOW SURFACE PICK STRENGTH. WAX ( TAPPI T4 59 8S75 ) L285 0 1 0.00 10.00 • 86 -.46 . 00 50 W SURFACE PICK STRENGTH. WAX ( TAPPI T4 59 es75

)

L36 6 0 10.20 10.80 1 . 60 -.09 1.46 50 W SURFACE PICK STRENGTH, WAX ( TAPPI T4 59 as75

)

L339 n 10.80 12.00 2.90 • 25 .49 50W SURFACE PICK STRENGTH, WAX ( TAPPI T459 es7s

)

GMEANS

:

9.08

95% 9.65ELLIPSE

:

2. 46 1.20

1 .00 WITH GAMMA - 48 DEGREES

55
WAX

NUMBER

SURFACE PICK STRENGTH, WAX

SAMPLE E08 = 9-1 WAX NUMBER SAMPLE H78 =9-7 WAX NUMBER

i i I I L_ I I 1 1 L

o

(X)'

CD

O

O'

LO

CDO

CD

LO00O

oo

LO

r-~

OQ + , X .

«

NOT IN GRAND MEANS

X ANALYSIS T50-1

LU

_J

CL. CT

CQ

O O

© ©

O ©

O

© ©

©

©

© ©

© ©

©

O

©

SAMPLE E08

6.5 7.0 7.5 8.0 8.5 9-0 9-5 10-0

_T T

1 1 .0 12-0

WAX NUMBER

56
REPORT NO. 45£ TAPPI COLLABORATIVE iJEFEkLNCE PROGRAM SEPTEMBER 1977 ANALYSIS T91-1 TABLE 1 CONCORA ( CORRUGATING NED I UM TEST-CMT)

TAPPI STANDARD T0O9 OS-71 SAMPLE CONVERTER KRAFT SAMPLE LINEPB6ARD TEST D. -• 1 0 LAB E03 149 GSAMS PER SQUARE METER E61 195 GRAMS PER JSQUARE METER

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

L100 ISA. 16. 1 .68 16. 1.45 200. -3. -.17 10. .92 91 H 0 LI 00

LI 76 1 61 . 12. 1.33 11 . .98 200. -2. -.13 8. .72 91

1

0 LI 76

LI 82 160. 12. 1.27 9. .86 22 1. 18. 1.12 12. 1 .09 91T 0 LI 82

LI 05 170. 1 . .14 21. 1.90 194. -9. -.53 14. 1.26 9 1

A

0 LI 85

L21 8 160 . -8. -.87 5. .50 209. 7. .42 10. .92 91 A 0 L218

L242 160. -8 . -.85 12* 1 . 07 168. -35. -2.10 22. 1.96 91Y 6 L242 L248 1 74. 6. .61 14. 1.26 220. 18. 1.10 16. 1.43 9 1

Y

a L2 4 8 L255 169. 0. .03 13. 1.24 196. -7. -.40 13. 1.18 911 6 L255

L269 164. -4. - .44 11 . 1 • 04 190. -4 . -.24 6. .53 91 I e L269

L274 168. -1 . -.06 5. .43 194. -8. -.51 9. .77 9 1 R e L2 74 L289 1 53 . -15. -1.64 9. .84 NO DATA REPORTED FOR SAMPLE E6

1

91 I M L2 89 L329 157. -12. -1.26 10. .90 223. 21 . 1 .27 19. 1.66 911 6 L329

L394 161 . -8. -.83 0. .70 205. 3. .16 4. .39 9 1 R 0 L3 94 L484 153. -16. -1.69 8. .72 175. -27. -1 .65 5. .44 91 I 0 L4 84 L575 170. 2. .18 9. .79 208. 6. .36 13. 1.19 91 H O L5 75 L666 1 75. 7. .76 13. 1.15 224. 21 . 1.29 6. .54 91 S 0 L666

Gfi. MEAN 168. NEWT6NS GRAND MEAN • 2 02. NEWTONS TEST DETERMINATIONS • 1

0

SD MEANS * 9 . NEWTONS SD OF MBANS • 17. NEWTONS 15 LABS IN GRAND MEANS

AVERAGE SDR • 11. NEWTONS AVERAGE SDR • 11. NEWTONS

GR. MEAN 37.83 POUNDS GRAND MEAN • 45.49 POUNDS

TOTAL NUMBER OF LABORATOfi IE S REPORTING • 16

Best Values: E03 170 newtons

E61 200 newtons

REPORT NO. 49S TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T91-1 TABLE 2 CONCORA (CORRUGATING MEDIUM TEST-CMT)

TAPPI STANDARD T809 OS-71

SEPTEMBER 1977

LAB MEANS COORDINATES AVG CODE F E03 E61 MAJOR MINOR fi. SDR VAR PROPERTY- - -TEST INSTRUMENT- --CONDITIONS

L484 0 153. 175. -31 . 8. .58 91 I FLAT CRUSH STRENGTH, CONCORA, H D L2 89 M 153. • 84 91 I FLAT CRUSH STRENGTH, CONCORA, H*D

L32 9 0 157. 223. 17. 17. 1.28 91 I FLAT CRUSH STRFNGTH, CONCORA, H D L21 8 0 160. 209. 4 . 10. .71 91 A FLAT CRUSH STRENGTH, CONCORA, INSTRON

L242 0 160. 168. -35. -2. 1.51 91 Y FLAT CRUSH STRENGTH, CONCORA

:

GIVE METHOD INSTR. MAKE & MODEL

L394 0 161 . 205. 1 • 8. .55 91 K FLAT CRUSH STRENGTH, CONCORA, TMI

L2 69 O 164. 198. -5. 3. .79 91 I FLAT CRUSH STRENGTH, CONCORA, B^D

L27 4 0 168. 194. -8. -2. .60 91 R FLAT CRUSH STRENGTH, CONCORA, TMI

L25 5 o 169. 196. -6. -2 • 1.21 91 I FLAT CRUSH STRENGTH, CONCORA, H D

LI 85 0 170. 194. -8. -4. 1.58 91 A FLAT CRUSH STRENGTH, CONCORA, INSTRON

L575 0 170. 208. 6. 0 . .99 91 H FLAT CRUSH STRENGTH, CONCORA, H^D

L24 8 0 1^4. 220. 19. -1. 1.34 91 Y FLAT CRUSH STRENGTH, CONCORA

;

GIVE METHOD INSTR. MAKE & MODEL

L666 0 175. 224. 22. -1 . .85 91 S FLAT CRUSH STRENGTH, CONCORA, TO YO SEIKI (METHOD JIS-P-8126)

LI 82 0 180. 221 . 21 . -6. .98 91 T FLAT CRUSH STRENGTH, CONCORA, TMI

LI 76 0 181. 200. 1 • -12. . 85 91 I FLAT CRUSH STRENGTH, CONCORA, B^D LlOO 0 184. 200. 2. -16. 1 .19 91 H FLAT CRUSH STRENGTH, CONCORA, H D GMFANS

:

168. 202. 1 .00 95% ELLIPSE

:

49. 24. WITH GAMMA - 74 DEGREES

57
C0NC0RR ( CMT

CO

CD

CD

co

SAMPLE E03 = 168- NEWTONS

SAMPLE E03 = 37.8 POUNDS

SAMPLE E61 = 202. NEWTONS

SAMPLE E61 = 45.5 POUNDS

o

CD O

CD - CO C\J LD o

CD LDLD CMO

LD

~ CM

(X) a

LD COCM O

LD o

CMCM

CO O

x 1 - CO CM

CD ~ZL CD

h- °

C\J ^ _ LU2

o

COCM o

co - O _ o

CO r~ - CO ’ '

CD o

CO CD -

o Cl) LD1 <

CM

_ +.X.« NOT IN GRAND MEANS

CD

LU ANALYSIS T91-1

LU

_J

Q_

2Z

CL

CD

©

O

O

O

O

O

O

O ©

O

O o

0

(I o

SRMPLE E03

10 120 130 40 150 160 170 180

NENT0NS

190 200 210 220 230

26 28 30

i

32 34 36 38

POUNDS

40 42 44 46 48 50

58
REPORT NO • 49 S TAPP I COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS T96-1 TABLE 1 RING CRUSH ( COMPRESSION RESISTANCE OF PAPERBOARD ) TAPPI STANDARD T472 SU-68 SAMPLE CONVERTER KRAFT SAMPLE LINERB0A2D TEST D. 1 1 0 LAB E03 149 G SAMS PES SQUARE METER E61 195 GRAMS PER SQUARE METER

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

L100 242. 7 . • 20 14. . 80 366. 31 . .73 23. 1.06 96H O LI 00

LI 07 234. -1 . -.02 17. .93 343. 9. .20 15. .68 96P 0 LI 07

LI 1 4 266. 31 . .92 18. 1.00 391 . 56. 1 .29 21. .97 96P e LI 14

LI 2 2 307 . 72. 2.18 46. 2. 59 412. 77. 1.78 22. .99 96P 0 LI 22

LI 24 232. -3. -.10 21. 1.19 299. -36. -.83 20. .90 96P 0 LI 24

LI 26 240 . 5. • 14 9. .50 343. 8. . 1 8 26. 1.26 96P 0 LI 26

LI 27 187. -48. -1.44 13. .75 326. -9. -.20 23. 1.07 96P 0 LI 27

LI 41 210. -25. -.76 19. 1.05 310. -25. -.58 31. 1.40 96P 0 LI 41

LI 57 249 . 14. .41 15. • 84 348. 13. .30 18. .82 96P 6 LI 57

LI £9 201. -34. -1.02 17. .96 265. -70. -1.61 34. 1.53 961 0 LI 59

LI 7 1 270. 35. 1.05 24. 1.35 345. 10. .23 15. .67 96H 0 LI 71 LI 76 190. -45. -1 .36 18. 1.01 254. -81 . -1 . 88 36. 1.65 96P 0 LI 76

LI 8 2 280. 45. 1.36 8. .48 374. 40. .92 10. .48 96H 0 LI 82

LI 91 208. -27. -.81 26. 1.48 262. -53. -1.23 54. 2.49 96P 0 LI 91 L242 284 . 49. 1.48 20. 1.14 383. 49. 1.13 15. .70 96 Y 0 L242 L274 1 67. -68. -2.04 12. .65 231. -104. -2.40 12. .53 96X 0 L2 74 L303 263. 28. .85 14. . 80 377. 42. .98 14. .65 96H 0 L303

L3 05 232. -3. -.08 9. .53 373. 38. .89 18. .83 96P 0 L3 05 L307 200. -35. -1.06 9. .51 305. -30 . -.70 13. .58 96P 0 L307

L329 268. 33. .99 27. 1.52 360. 25. .58 20. .92 96P 0 L329

L3 3 6 233. -2. -.05 20. 1.12 342. 8. .18 21. .97 96H 0 L336

L350 242. 7. .20 16. . 89 328. -7. -.15 19. .87 96P 0 L350

L393 240. 5. .16 17. .96 366. 31 . • 7t 11. .49 96P 0 L39?

L4 84 205. -30. -.90 18. 1.03 310. -25. -.58 15. .68 96R 0 L4 84 L562 224. -11 . -.34 36. 2.05 293. -42 . -.98 50. 2.30 96P 0 L562

L57 0 221 . -14. -.42 1 8. 1.01 340. 5. .13 13. .59 96T 0 L570

L575 276. 41 . 1.24 9. .53 383. 49. 1 .13 11. .52 96H 0 L575

L603 206. -29. -.86 17. .94 316. -19 . -.43 37. 1.70 96P 0 L603

L61 0 264. 29. .88 12. .67 370. 35. .82 16. .72 96P 0 L61 0 L663 209. -26. -.78 13. .71 310. -25. -.58 21. .96 96P 0 L663

Gfi. MEAN 235. NEWTONS GRAND MEAN 335. NEWTONS TEST DETERMINATIONS - 1 < SD MEANS - 33. NEWieNS SD OF MEANS - 43. NEWTONS 30 LABS IN GRAND MEANS

AVERAGE SDR - 18. NEWTONS AVERAGE SDR - 22. NEWTONS

GR. MEAN - 62.83 POUNDS GRAND MEAN • 75.27 POUNDS

TOTAL NUMBER OF LA BORA TOE IE S REPORTING - 30

Best Values: E03 240 newtons

E61 350 newtons

59
report Ne. 49s TAPP I COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977 ANALYSIS 196-1 TABLE 2 RING CRUSH (COMPRESSION RESISTANCE OF PAPERBOARD)

TAPPI STANDARD T472 SU-68

LAB CODE F MEANS

E03 E61 COORDINATES

MAJOR MINOR

AVG

R • SDR VAR PROPERTY— -TEST INSTRUMENT'

L27 4 0 167. 231 . -124. -7. .59 96 X RING CRUSB: GIVE INSTRUMENT ] LI 27 0 187. 326. -36. 33. .91 96P RING CRUSH* H AND D

LI 76 0 190. 254. -92. -12. 1.33 96P RING CRUSB* H AND D L3C7 0 200 . 305. -45. 10. . 55 96 P RING CRUSB* H AND D

LI 59 0 201. 265. -76. -14. 1.26 961 RING CRUSH* INSTRON

L4 84 0 205. 310. -38. 9. .86 96R RING CRUSH* REGMED

L603 0 206. 316. -32. 12. 1.52 96P RING CRUSB* H AND D

LI 91 0 208. 2 82. -55. -10. 1 .98 96 P RING CRUSH* H AND D L6 63 0 2 09 . 310. -36. 6. .84 96P RING CRUSH* H AND D Ll4i 0 210. 310. -35. 5. 1 .23 96P RING CRUSB, B AND D

L570 0 221. 340. -4. 14. . 80 96 T RING CRUSB. TMI

L562 0 224. 293. -41. -16. 2.18 96P RING CRUSB, H AND D

LI 2 4 0 232. 299. -31 . -19. 1.04 96 P RING CRUSB* H AND D L305 o 232. 373. 29. 2 5. .68 96P RING CRUSB* H AND D L336 0 233. 342. 5. 6. 1.04 96H RING CRUSB* H AND D

LI 0

7

o 234. 343. 7. 6. .81 96P RING CRUSB, H AND D

LI 2 6 0 240. 343. 9. 1. .88 96P RING CRUSH* H AND D L393 o 240. 366. 28. 14. .72 96P RING CRUSB* B AND D L350 0 242. 328. -1. -5. .88 96 P RING CRUSB, H AND D L100 0 242. 366. 29. 13. .93 96H RING CRUSB* H AND D

LI 57 o 249. 348. 19. -3. .83 96 P RING CRUSH. H AND D L303 0 263. 377. 51 . 2 • .73 96H RING CRUSB* H AND D

L61 0 0 26 4. 370. 46. -3. .69 96 P RING CRUSH* B AND D

LI 1 4 e 266. 391 . 63. 9. .98 96P RING CRUSB* H AND D L329 0 268. 360. 40. -11. 1.22 96 P RING CRUSH* H AND D

LI 7 1 o 270. 345. 29 . -22. 1 .01 96 H RING CRUSB. H AND D L575 e 276. 383. 64. - 4 . .52 96H RING CRUSB* H AND D

LI 82 0 280. 374. 59. -13. • 48 96H RING CRUSB* H AND D L242 o 284. 383. 68. -10. .92 96Y RING CRUSh

:

GIVE INSTRUMENT 1 LI 22 0 307. 412. 105. -12. 1.79 96P RING CRUSH, H AND D

GMEANS: 235. 95%

335. ELLIPSE: 139. 35.

1 .00 RITH GAMMA • 53 DEGREES

MODEL

60
RING CRUSH

o

o

o

CD

O

CD

'

CO O

O

O

CD

O

LD

O

SAMPLE E03 = 235. NEWTONS

SAMPLE E03 = 53 POUNDS

SAMPLE E61

SAMPLE EB1

335. NEWTONS

75 POUNDS

NENT0NS

20 30 40 50

POUNDS

60 70 80

M
REPORT NO • 49S T AFP I COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1977

SUMMARY TABLE

SAMPLE GRAND SD OF AVER REPL LABS LABS REPL

TEST METHOD CODE MEAN MEAN SDR CMP INCL PARTIC TAP PI REPEAT REPROD

BURSTING STRENGIB. MODEL C H60 18.21 1.31 1.21 15 46 54 10 1 .06 3.68

T1 0-1 PSI B05 32.21 1.57 1.61 1.41 4.44

BURSTING STRENGTB. MODEL C-A H60 18.60 1 • 06 1.20 15 35 37 10 1 .05 3.00

T1 0-2 PSI BOS 32.49 1.05 1 . 54 1.35 3. 01 BURSTING STRENGTB, BIGB RANGE E24 67.8 2.5 3.9 15 .35 46 10 3.4 7.3

Til -1 PSI BOB 78.4 4.1 6.6 S.8 1 1 .5 TEARING STRENGTH, DEEP CUTOUT E05 62.9 2.7 2.2 15 108 122 10 1.9 7.6

T15-1 GRAMS fl 03 64.2 3.1 2.0 1.7 8.5 TEARING strengtb.no CUTOUT, OLD STYLE E04 65.3 3.8 3.2 15 14 16 10 2,8 10.7

T1 7-1 GRAMS E17 65.0 3. 1 2.8 2. S 8.7 TENSILE STRENGTB, PACKAGING PAPERS H56 9.52 .43 .61 20 46 51 12 .49 1.24

T19-1 KILONEWTON/M H09 7.05 .30 .50 .40 . 86 TENSILE STRENGTB, CRE TYPE B95 4.49 .18 . 19 20 39 49 12 .15 .51 T20-1 KILONEWTON/M B43 7.17 • 52 .31 .24 1.44 TENSILE STRENGTB, PENDULUM TYPE B95 4.55 .29 • 21 20 36 36 12 .1 7 . 80 T20-2 KILONEWTON/M H43 7.00 .85 .31 .25 2.35

T.E. A.

,

PACKAGING PAPERS H56 95.8 6.3 13.9 20 14 18 12 11.2 1 8.7

T25-1 JOULES/SC M H09 192.6 12.4 28.8 23.0 37.4

T.E. A.

.

PRINTING PAPERS B95 41.2 3.2 5 .

0

20 18 21 12 4. 0 9.3

T26-1 JOULES/SQ M H43 81 .8 14.4 8.3 6. 7 40.2 ELONGATION TO BREAK. PACKAGING PAPER B56 1 .74 • 23 .15 20 15 16 12 .12 . 63 T28-1 Percent H09 4.27 .39 .50 .40 1.11 ELONGATION TO BREAK, PRINTING PAPER B95 1 . 509 .138 • 131 20 17 20 12 .105 .387

T29-1 PERCENT H43 1.972 .286 • 142 . 114 .795 FOLD INC ENDURANCE ( MIT ) B46 74. 20. 16. 15 44 54 10 14. 55.

T30-1 DOUBLE FOLDS HI 1 122. 45. 39. 34. 125. FOLDING ENDURANCE ( MIT ) H46 1 . 843 • 121 .097 15 44 54 10 . 085 .340

T3 0-2 LOG( 1 0 ) FOLD HI 1 2.024 .184 .154 . 135 .515 STIFFNESS. GURLEY H64 386. 26. 17. 10 36 37 10 IS. 71 . T3S-1 GURLEY UNITS H66 455. 32. 30. 26. 88. STIFFNESS, TABER E 38 2.50 • 32 • 16 10 22 29 5 • 20 .91 T36-1 TABER UNITS E28 7.17 • 82 .35 .44 2.29 SURFACE PICK STRENGTB, IGT Eoe 47.6 18.2 3.1 4 9 16 4 4.3 50.4

T49-1 KP CM/SEC H78 73.1 25.4 4.4 6. 0 70.3 SURFACE PICK STRENGTB. WAX E08 9 .08 .67 .46 5 19 21 5 .56 1 • 86 T50-1 WAX NUMBER H78 9.65 .73 .42 .52 2.02 C6NC0RA ( CMT ) E03 1 68. 9. 1 1. 10 15 16 10 10. 26.

T91 -1 NEWTONS E6I 202. 17. 1 1 • 10. 46 . RING CRU SB E03 235. 33. 18. 10 30 .3 0 10 16. 92. T96-1 NEWTONS E61 335. 43. 22. 19. 120.

62
N BS-1 1 4 A (REV. 7-73)

i

!

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO. TAPPI CRP 49S

2. 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 //49S, Strength Tests

5. Publication Date 12/1/77

6. Performing Organization Code

7. AUTHOR(S) 8. Performing Organ. Report No. NBSIR 77-1323

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, VA 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 participaitng laboratories. An important

by-product of the programs is the provision of realistic pictures of the state

of the testing art. This is one of the periodic reports showing averages for

each participant, within and between laboratory variability, and other information for participants and standards committees.

17. KEY WORDS (six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name; separated by semicolons)

Collaborative reference program; Laboratory evaluation; Paper; Precision;

Reference samples; Testing calibration.

18. AVAILABILITY |

' Unlimited 19. SECURITY CLASS

(THIS REPORT)

21. NO. OF PAGES

|X ' For Official Distribution. Do Not Release to NTIS

UNCL ASSIFIED 68

1

1 Order From Sup. of Doc., U.S. Government Printing Office Washington, D.C. 20402. SD Cat. No. Cl^

20. SECURITY CLASS

(THIS PAGE)

22. Price

| Order From National Technical Information Service (NTIS)

Springfield, Virginia 22151 UNCLASSIFIED

USCOMM-DC 29042-P74
.

• •

'
This diagram is composed of two fullsize overlaid tracings. One tracing

was made from the Thwing-Elmendorf

tear tester with NO CUTOUT (old style).

The other tracing was made from the

Thwing-Elmendorf tear tester with

DEEP CUTOUT. The cross hatched area represents the metal removed from the

swinging sector when the deep cutout

(new) style was created.

DEEP CUTOUT instrument

is 5/8 inch across

NO CUTOUT instrument

is 1 l/U inch across

Note shape of pendulum

sector with respect to

an imaginary line drawn

across the top of the

specimen clamp