/)&S//2.7Z''

/J55"

TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 51G

U.S. DEPARTMENT OF COMMERCE

National Bureau of Standards
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

NBS COLLABORATIVE REFERENCE PROGRAMS

Smoothness

Surface pick strength

K & N ink absorption

pH

' Opacity

Blue reflectance (brightness)

Specular gloss, 75°

Thickness

Concora (flat crush)

Ring crush

FKBG-API Containerboard (48 times per year)

Mullen burst of linerboard

Concora test of medium

MCCA Color and Appearance (4 times per year)

Gloss at 60°

Color and color difference

Retroref lect ivity

Rubber (4 times per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

ASTM Textiles (3 times per year)

Flammability (FF3-71 and FF5-74)

ASTM Cement (2 times per year)

Chemical (11 chemical components)

Physical (8 characteristics)

AASHTO Bituminous

Asphalt cement (2 times per year)

Cutbacks (once a year)

&et

saaO

Collaborative Reference Program

B360 Polymer Building

National Bureau of Standards

Washington, D.C. 20234
TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

Report No. 51

G

R. G. Powell

TAPPI-NBS Research Associate

Collaborative Testing Services, Inc.

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

Laboratory Evaluation Technology Section

Standards Application and Analysis Division

Institute for Applied Technology

NBSIR 78-1335

U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

INTRODUCTION

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

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

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

tests which measure other properties will receive only the G

report

.

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

familiarizing themselves with the International System of

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

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

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

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

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

Notes and comments for individual laboratories and "Best Values"

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

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

provisional values included with the samples to detect serious

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

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

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

or Jeffrey Horlick on 301/921-2946.

Edwin B. Randall, Jr., Administrator

TAPPI Collaborative Reference Program

Laboratory Evaluation Technology Section

March 28, 1978
TAPPI-NBS COLLABORATIVE REFERENCE PROGRAM

BACKGROUND AND PURPOSE

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

Paper Industry established a collaborative reference program to provide a participating

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

comparison with that of other laboratories.

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

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

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

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

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

HOW THE PROGRAM WORKS

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

may enter the program at any time.

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

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

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

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

values should be known to the operator.)

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

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

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

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

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

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

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

recognized reference laboratories in this and other countries.

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

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

these values for each test method.

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

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

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

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

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

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

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

Repeatability and Reproducibility Statements such as Contained in ASTM, TAPPI and ISO

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

i

ii

iv

1

58

11

13

14

19

21

22

24

25

26

31

32

34

37

39

41

44

49

52

TABLE OF CONTENTS

Analyses In This Report

Introduction

Description of Program

Metric Conversion Table

Key to tables and graphs

40-1 Air Resistance, Gurley Oil type

40-

2 Air Resistance, Sheffield type

41-

1 Air Resistance, Gurley Mercury type

44-

1 Smoothness, Parker Printsurf

45-

1 Smoothness, Sheffield type

45-2 Smoothness, Bekk type

47-1 Smoothness, Bendtsen type

56-

1 K & N Ink Absorption

57-

1 pH, Cold Extraction

57-2 pH, Hot Extraction

60-1 Opacity, White (89%) Backing

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

60-3 Opacity, Paper Backing, Elrepho type

65-1 Blue Reflectance (Brightness), Directional

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

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

75-1 Specular Gloss, 75°

90-1 Thickness (Caliper)

95-1 Grammage (Basis Weight)

Summary

Analyses In The S Report

10-1 Bursting Strength - Up to 45 psi

10-

2 Bursting Strength - Up to 45 psi, Air Clamps

11-

1 Bursting Strength - Up to 100 psi

15-1 Tearing Strength - Deep Cutout

17-1 Tearing Strength - No Cutout

19-

1 Tensile Breaking Strength - Packaging Papers

20-

1 Tensile Breaking Strength - Printing Papers, CRE

20-2 Tensile Breaking Strength - Printing Papers, Pendulum

25-

1 Tensile Energy Absorption - Packaging Papers

26-

1 Tensile Energy Absorption - Printing Papers

28-

1 Elongation to Break - Packaging Papers

29-

1 Elongation to Break - Printing Papers

30-

1 Folding endurance, MIT type

35-

1 Stiffness, Gurley

36-

1 Stiffness, Taber

49-

1 Surface Pick Strength, IGT

50-

1 Surface Pick Strength, Wax

91-1 Concora (Flat Crush)

96-1 Ring Crush

iii
TABLE OF CONVERSION FACTORS TO METRIC (SI) UNITS

Physical

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 8 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 ram 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/m

2 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

!V
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)

witn 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 amongla'boratory 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 aoout

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
VAR -

F

-

+ -

#

-

M -

X -

* _

S -

0 -

COORDINATES -

No. of test

Determinations

Lower limit

for R. SDR

Upper limit

for R. SDR

3 0.09 2.58

5 0.27 2.06

8 0.40 1.77

10 0.46 1.67

15 0.56 1.53

20 0.61 1.45

25 0.65 1.39

Code for instrument type or variation in condition, see second table.

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)

.

Excluded because data for one sample are missing

.

Excluded because plotted point would fall outside of tne 99% error ellipse, (see below for

explanation of Graph )

.

Included in grand means but plotted point falls

outside of the 95% error ellipse. The participants should take this as a warning to reexamine

his testing procedure.

Included in grand mean but only after omission

of one or more 'wild' values; that is, test

determinations more than 3 times AVERAGE SDR

from the laboratory’s MEAN. Not more than 20%

of the test determination may be excluded in

this manner without rejecting the laboratory.

Included in grand mean and inside 95% error ellipse

.

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 - Lengths of the major and minor axes of the

ellipse and the angle that the major axis

makes with the horizontal axis.

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

;

an indication of the laboratory's precision

of repeated measurements.

Graph - For each laboratory the MEAN for the second

sample is plotted against the MEAN for the

first sample, with each point representing

a laboratory. The horizontal and vertical

lines are the GRAND MEANS. The dashed line

is drawn at 45°. The solid sloping line,

which may or may not lie close to the 45

line, is along the major axis of the error ellipse. The ellipse is brawn 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 0 . A participant whose plotted point falls outside of the ellipse should carefully reexamine

the testing procedure he is following.

The graph is plotted with an ellipse when there

are 20 or more laboratories in the analysis.

When there are 10 through 19 laboratories in

the analysis the graph is plotted but the ellipse

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

plotted.

The International System of Units (SI) is used on

the plots wherever possible to aid participants

in familiarizing themselves with SI. Grand means

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

supplementary scales in SI units are drawn along

the axes allowing the reader to compare means and

variability in common units and SI units for the

same data.

3
Summary -

(At end of

report)

In addition to several quantities already defined

above, the summary shows the following values for

each test method:

REPL CRP - The number of replicate test determinations used

in this Collaborative Reference Program.

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

Standard or assumed here if there is no TAPPI

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

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

Standard T1206 for definitions and computations.

REPEAT - TAPPI repeatability, a measure of the wit'ninlaboratory precision of a test result.

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

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

for which sufficient information is available.

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

and past, with special attention to results

obtained by the National Bureau of Standards

and other recognized reference laboratories

in this and other countries. All participants

using equipment that is standard for the

analysis should be able to achieve results

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

are shown along with the best values.

4
REPORT NO. 5 1G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T40-1 TABLE I AIR RESISTANCE, GURLEY UNITS (SECONDS/lOO CCI TAPPI STANDARD T460 OS-75, AIR RESISTANCE OP PAPER

JANUARY 1978

LAB SAMPLEH27 PRINTING108 GRAMS PER SQUARE METER

SAMPLE

H49 PRINTING109 GRAMS PER SQUARE METER TEST D. • 10 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LI 00 2 8* 6 -.7 -.53 1.6 1.02 30.1 -. 8 -.50 1 .

6

.88 40D 6 LI 00

LI 07 22.6 -6.6 -S.27 1 . 1 . 66 23.9 -6.9 -4.43 4.0 2.23 4 OD n LI 07

LI 2

1

28.5 -.7 -.59 1 .4 . 84 31.0 . 1 . 07 2.3 1 .27 40D 0 LI Z\

LI 22 28.9 -.4 -.30 1.3 .80 30.9 -.0 -.02 1.3 .76 40D 0 LI *2

LI 2

3

29.6 .4 .32 2.3 1.45 30.6 -.3 -.20 2. 3 1 .31 4 OD 0 H 23 L124G 28.5 -.7 -.56 1.5 .90 31.7 .8 .49 1.9 1.06 4CD 0 LI 24G

LI 25 30.5 1 .2 .98 1.2 .76 31.6 .8 .48 1 .

4

.78 40 D 0 LI 25

LI 27 30.0 . 8 .60 1.4 . 86 32.6 1 .8 1.12 1.6 .91 40D 0 LI 27

LI 28 29.1 -.1 -.12 2. 1 1 . 29 30.5 - . 4 -.25 1.6 .93 4 0 D 8 LI 28

LI 4

1

30. 5 1 .3 1.00 1.7 1.06 32.3 1 .4 .90 1.4 .80 40 D 8 LI 41

LI 4 8 28.6 -.6 -.51 1.5 .91 30.9 .0 .01 1.5 .86 4 OD 8 LI 48

LI 53 28. 3 -.9 -.71 1.4 . 86 29.5 -1.4 -.89 1.9 1 .07 4 OD 8 LI 53

LI 58 23. 1 -6.1 -4 . 89 .9 .54 24.8 -6. 1 -3.89 1.3 . 74 40D X LI 58

LI 59 30.4 1.2 .96 1.7 1 . 04 32.4 1.5 .95 1.9 1 .05 40D 8 LI 59

LI 63 31.2 1.9 1.54 1.5 .90 32.9 2.0 1.28 2.2 1 .23 4 0 D 8 LI 63

LI 66 31.2 2.0 1 .60 2.1 1 . 32 32.9 2.0 1.28 2. 1 1.16 40 D 0 LI 66

LI 74 29.4 .2 .12 1.6 1 . 02 32.4 1.5 .94 2.6 1 .48 40 D 0 LI 74

LI 76 39. 3 10. 0 7.98 3. 7 2. 28 47.7 16.8 10.75 2.4 1 .35 4 OD * LI 76 L182G 27 .

9

-1.3 -1.07 1.2 .74 28.0 -2.9 -1.84 3.3 1 .87 40D 8 LI 82G

LI 83 31.

1

1.9 1.48 1 . 1 . 68 34.1 3.2 2.05 1.9 1 . 04 4 0 D 0 LI 83 L190C 30.4 1.2 .92 2.7 1.68 32.3 1.4 .90 2. 3 1 .30 4 OD 8 LI 90C

LI 90R 30.0 .8 .60 1.8 1.13 31 .4 .5 .33 2.2 1 . 2S 40D 0 LI 90R

L21 2 28. 4 -.8 -.66 1.8 1.14 28.8 -2.1 -1.33 1 .

7

.97 40 D e L212

L2 23 30.5 1.3 1 . 00 1.6 .58 31.8 .9 .58 1.7 .95 40 D 0 L2 2 3 L224 29.8 .6 .46 2.2 1.38 29.6 -1.3 -.83 3. 0 l .70 4 0 D 4 L224

L2 3 0G 29.6 .4 .28 2.0 1.21 30.4 -. 5 -.31 1 .

6

. 89 40D 0 L230G

L23 2 28.3 -.9 -.72 1 . 1 . 67 30.5 -.4 -.25 .9 .49 40D 8 L232

L236 30.3 1 . 1 .84 1.3 .82 32.4 1 .

5

.96 1 .

7

.94 4 OD 8 L2 36

L2 3 8A 28.3 -.9 -.74 1.5 .95 31.3 . 4 .26 1.7 .95 40 D 8 L238A

L241 27. 5 -1.7 -1.39 1.8 1. 14 28.7 -2.2 -1.40 1.3 .70 40D 0 L241

L242 28. 0 -1 .3 -1 .01 1.4 .85 29.3 -1.6 -1.02 1 .

7

.98 4 0 D 0 L242 L243G 29. 1 -.2 -.15 1.9 1.18 31.1 . 2 .14 1.5 . 86 4 OD 0 L243G

L259 28. 0 -1.2 -.99 1.7 1.0S 29.8 -1 . 1 -.69 1.4 .79 4 OD 0 1259

L261 29.6 .3 .27 1.1 .67 31.1 .2 .11 1 ,

** .98 4 OD 0 L261 L262G 28.3 -.9 -.73 1.8 1.11 28.1 -2.8 -1 .77 1.7 .98 4 0 D 0 L262G

L265 29.4 .2 .16 1.4 . 88 30.5 -. 4 -.26 1.8 .99 40D 0 L265

L278 30.0 . 7 .59 .7 . 45 31.0 . 2 .10 2. 0 1.13 4 OD 0 L278

L2 85 24. 0 -5. 3 -4.19 1.1 . 71 25.2 -5. 7 -3.63 1.2 .66 40 D X L2 85

L301 32.9 3.7 2.91 1.4 .90 35.1 4.2 2.69 1.4 .81 40 D 4 L301

L3 0 8 30.8 1.6 1.24 1.5 .96 33.0 2.1 1 .35 1.6 .92 4 0 D 0 L308

L312 28.2 -1.0 -.83 1.6 1.00 30.2 -.7 -.44 1.3 . 74 4 OD 0 L312

L32

1

29.0 -.2 -.18 1.4 . 89 31.4 .5 .30 2.4 1 . 35 4 OD 0 L321 L324 27.3 -1.9 -1 .51 2.3 1 . 44 28.0 -2. 9 -1.83 1.8 1 . 00 4 OD 6 L324

L326 29. 8 .6 .44 1.8 1.12 31.2 .3 .20 2. 3 1.29 4 OD 0 L326

L32 8 28.7 -.6 -.44 1.5 . 95 30.2 -.6 -.41 .9 .52 40 D 0 L328

L341 30. 2 1.0 .76 1.5 . 91 32.4 1 .5 .98 1.7 .97 40 D 0 L341 L344 28. 4 -.8 -.67 1.5 .92 30.2 -.7 -.43 1 .

2

.70 40D 0 L344

L37 6 25.9 -3. 3 -2.66 1.0 . 60 27.5 -3.4 -2.16 1.8 1 .00 4 0 D 4 L376

L378 29. 8 .6 .48 2.1 1 . 31 31 .9 1 .

0

.66 2.6 1.48 40D 0 L378

L3 8 0 29.0 -.2 -.20 .8 . 51 31.3 . 4 .26 1.7 .96 4 0 D © L3 80 L392 27. 1 -2.2 -1.72 1.9 1 .20 28.9 -2.0 -1.29 1.9 1 .05 4 0 D 0 L392 L396M 30.9 1 .7 1 .36 2.0 1.22 32.5 1.6 1 .01 1 .

7

.97 4CD 0 L396M

L561 29. 0 -.2 -.20 1.1 . 65 30.0 -.9 -.57 2. 3 1.27 4 OD 0 L561 L567 27.5 -1.7 -1.39 1.4 . 84 29.1 -1 .

8

-1 .14 1.4 . 77 40 D 0 L567

L57 6 28. 5 -.7 -.55 1.0 . 60 29.8 -1.1 -.69 . 7 .42 40D 0 L5^6

L599 29. 5 .2 .18 1.4 . 84 31.3 .4 . 24 2. 1 1.17 40D 6 L599

L6 04 29. 3 .1 . 04 3.7 2.26 30.7 -.2 -.13 1.4 .81 4 OD 0 L604

GR. MEAN

SD MEANS

• 29.2

• 1.3 GURLEY UNITS GURLEY UNITS

AVERAGE SDR - 1.6

GRAND MEAN - SD 0F MEANS - GURLEY UNITS30.9

1 .6 GURLFY UNITS GURLEY UNITS AVERAGE SDR •

TEST DETE RMINATI0NS • 10 53 LABS IN GRAND MEANS

1.8 GURLEY UNITS

LI 1 5 27. 0 -2.2 -1.79 1.1 . 65 26.2 -4. 7 -2.99 1.9 1 . 09 4 0U LI - 5 L291 31 .

0

1.8 1 .40 1.6 1 . 01 33.0 2.1 1 . 35 3. 0 1 .70 40U L291

L4 84 26. 7 -2.6 -2.03 1.5 .90 28.9 -1 .9 -1 .24 1.6 .91 40H L4 84 TOTAL NUMBER OF LABORATORIES REPORTING - Best Values: H27 29.0 + 2.0 Gurley units

H49 30.9 + 2.2 Gurley units

The following laboratories were omitted from the grand means because of extreme test results: 107

176.
REPORT NO. 510 TAPP1 COLLABORATIVE REFERENCE PROGRAM JANUARY 1578 ANALYSIS T40-1 TABLE 2 AIR RESISTANCE, OURLEY UNITS C SECONDS/lOO CC) TAPPI STANDARD T460 OS-75, AIR RESISTANCE OF PAPER

LAB C0DE F MEANS

H27 H49 COORDINATES

MAJOR MINOR

AVG

R. SDR VAR PR0PERTY-- -TEST INSTRUMENT---C0NDITI0KS

LI 07 * 2 2.6 23.9 -5.5 • 9 1.44 40 D AIR RESISTANCE, GORLEY DENS0METE R . OIL FLOTATION

LI 5 8 X 23. 1 24.8 -6.6 1.1 .64 40 D AIR RESISTANCE. GURLEY DENS0METER - OIL FLOTATION

L285 X 24.0 25.2 -7.7 .7 .69 40 D AIR RESISTANCE, GURLEY DENS0METER - OIL FLOTATION

L376 * 25.9 27.5 -4.7 • 6 .80 40D AIR RESISTANCE, GURLEY DENS0METER - OIL FLOTATION

L4 84 26.7 28.9 -3.1 • 8 .91 40 H AIR RESISTANCE, REGMFD- TYPE GURLEY !DENSOMETER -OIL

LI 1 5 27.0 26.2 -5.1 -1.1 .87 4 OU AIR RESISTANCE. SHEFFIELD IN GURLEY UNITS

L392 0 27.1 28.9 -2.5 .5 1.12 40 D AIR RESISTANCE. GURLEY DENS0 METER - OIL FLOTATION

L324 0 27.3 28.0 -3.4 -.3 1.22 40 D AIR RESISTANCE, GURLEY DENS0METER - OIL FLOT ATION

L56 7 0 27.5 29. 1 -2.5 .3 .80 4 0 D AIR RESISTANCE. GURLEY DENS0METER - OIL FLOTATION

L241 0 27.5 28.7 -2.8 .0 .92 40D AIR RESISTANCE. GURLEY DENS0METF R - OIL FLOTATION

L182G 0 27.9 28.0 -3.1 -.7 1.31 40D AIR RESISTANCE, GURLEY DENS0METER . OIL FLOTATION

L242 0 26.0 29.3 -2.0 • 0 .91 40D AIR RESISTANCE. GURLEY DENS0METER - OIL FLOTATION

L259 0 28.0 29.8 -1.6 .3 .92 40 D AIR RESISTANCE, GURLEY DENS0 METER - OIL FLOTATION

L312 0 28.2 30.2 •1.2 • 4 .87 40 D AIR RESISTANCE, GURLEY DENS0MBTE R - OIL FLOTATION

L238A 0 28. 3 31.3 -.3 1.0 .95 40 D AIR RESISTANCE, OURLEY DENS0METER - OIL FLOTATION

L262G 0 28. 3 26. 1 -2.7 -1.0 1.04 40 D AIR RESISTANCE. GURLEY DENS0 METER • OIL FLOT ATION

L232 0 28. 3 30.5 -.5 .5 .58 40D AIR RESISTANCE. GURLEY DENS0 METER - OIL FLOTATION

LI 53 0 28. 3 29.5 -1 .6 -.1 .97 40D AIR RESISTANCE, GURLEY DFNS0METER - OIL FLOTATION

L344 0 28.4 30.2 -1.0 • 3 .81 40D AIR RESISTANCE, GURLEY DENS0METER - OIL FLOTATION

L21 2 0 28. 4 28.8 -2.2 -.6 1.05 40 D AIR RESISTANCE. GURLEY DENS0METFR - OIL FLOTATION

LI 2

1

0 28.5 31.0 -.4 .7 1.05 40 D AIR RESISTANCE. GURLFY DENS0METER . OIL FLOTATION

LI 24G 0 28.5 31.7 .2 1.0 .98 40 D AIR RESISTANCE. GURLEY DENSO ME TFR - OIL FLOTATION

L576 0 28.5 29.8 -1 .3 -. 1 .51 40D AIR RESISTANCE, GURLEY DENSO ME TER - OIL FLOTATION

LI 0 0 0 28.6 30.1 -1.0 • 0 .95 40 D AIR RESISTANCE, GURLEY DENS0METE R - OIL FLOTATION

LI 48 0 28.6 30.9 - . 4 • 5 .88 40D AIR RESISTANCE, OURLEY DENS0METER - OIL FLOTATION

L328 0 28. 7 30.2 -.9 • 0 .74 4 0 D AIR RESISTANCE. GURLEY DENS0METER . OIL FLOTATION

LI 22 0 28.9 30.9 -.3 .3 .78 40 D AIR RESISTANCE. GURLEY DENS0METE R - OIL FLOTATION

L56

1

0 29. 0 30. 0 -.9 -.4 .96 4 0 D AIR RESISTANCE. GURLEY DENSOMETER - OIL FLOTATION

L380 0 29.0 31.3 .2 «4 .7? 40 D AIR RESISTANCE. GURLEY DENSO METER - OIL FLOTATION

L321 0 29. 0 31.4 .2 .5 1.12 40 D A I R RESISTANCE. GURLFY DENSOMETER - OIL FLOTATION

L24 3G 0 29. 1 31.1 .1 • 3 1.02 40D AIR RESISTANCE. GURLEY DENSOMETER . OIL FLOT ATION

LI 2

8

0 29. 1 30.5 -.4 -.1 1.11 400 AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOT ATION

L60 4 0 29. 3 30. 7 -.1 -.2 1.54 40D AIR RESISTANCE. GURLFY DENS0METF R - 0 IL FLOT ATION

LI 74 0 29.4 32.4 1.3 • 8 1 .25 4 0 D Al R RESISTANCE. GURLEY DENSOMETER - OIL FLOT ATION L265 0 29.4 30.5 -.2 -.4 .94 40 D AIR RESISTANCE, GURLEY DENSOMETER - OIL flotation

L599 0 29.5 31.3 . 4 • 1 1 .01 40 D AIR RESISTANCE, GURLEY DENS0METE R

• OIL FLOTATION

L2 6

1

0 29. 6 31.1 . 3 -.2 .82 40 D AI R RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L230G 0 29.6 30.4 -.2 -.6 1.05 40 D AIR RESISTANCE. GURLEY DENSOMETER - OIL FLOTATION

LI 23 0 29.6 30. 6 -.0 -.5 1.38 40D AI R RESISTANCE. GURLEY DENSOMETER - OIL FLOTATION

L326 0 29.8 31.2 .6 -.2 1.21 40D AIR RESISTANCE, OURLEY DENSOMETER - OIL FLOTATION

L22 4 • 29.8 29. 6 -.7 -1.3 1.54 4 OD AIR RESISTANCE. OURLEY DENSOMETER . OIL FLOT ATION L378 0 29.8 31.9 1 .2 • 2 1.39 40D AI R RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L278 0 30.0 31 .

0

.6 -.5 .79 4 0 D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

LI 27 0 30.0 32.6 1 .8 .5 .89 40D AIR RESISTANCE. OURLEY DENSO METFR - OIL FLOTATION

LI 9 OR 0 30.0 31.4 .5 -.3 1.19 40 D AIR RESISTANCE, OURLEY DENSOMETER - OIL FLOTATION

L341 0 30.2 32.4 1 .8 • 2 .94 40 D AIR RBSISTANCF. GURLEY DENSOMFTER • OIL FLOTATION

L2 3 6 0 30.3 32.4 1.8 • 1 .88 4 OD AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

LI 9 0C 0 30.4 32.3 1.8 -.0 1 .4V 40 D AIR RESISTANCE. GURLEY DENSOMFTER - OIL FLOTATION

LI 59 0 30.4 32.4 1.9 -.0 1 • C5 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

LI 2 5 0 30.5 31.6 1.4 -.5 .77 40D AIR RESISTANCE. OURLEY DENSOMETER - OIL FLOTATION

L22 3 0 30. 5 31 .

8

1.5 -.4 .96 40 D AI R RFSI STANCE, OURLEY DENSOMETFR . OIL FLOT ATION

LI 4

1

0 30.5 32.3 1 .9 -.1 .93 4 OD AIR RESISTANCE, OURLEY DENSOMETER - OIL PLOT ATION

L30 8 0 30. 8 33.0 2.6 • 1 .94 40D AIR RESISTANCE, OURLEY DENSOMETER - OIL FLOTATION

L396M 0 30.9 32.5 2.3 -.4 1.10 4 0 D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOT ATION

L291 31.0 33.0 2.7 -.1 1.35 40 0 AIR RESISTANCE, SHEFFIELD TN GORLEY UNITS

LI 83 0 31.1 34.1 3.7 .5 .86 40 D AIR RESISTANCE. GURLEY DENSOMETER • OIL FLOTATION

LI 63 0 31.2 32.9 2.8 -.3 1.07 40 D AIR RESISTANCE, GURLEY DENSOMETER - OIL flotation

LI 66 0 31.2 32.9 2.8 -.4 1 .24 4 OD AIR RESISTANCE. OURLEY DENSOMETER - OIL FLOTATION

L301 • 32.9 35. 1 5.6 -.3 .86 4 OD AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

Li 76 * 39.3 47.7 19.4 2.4 1.82 40D AIR RESISTANCE. GURLEY DENSOMETER - OIL FLOTATION

GMEANS: 29.2 30.9

95% ELLIPSE: 5.0 1.2 1.00 WITH GAMMA • 52 DEGRBFS

FLOTATION

6
GURLEY

UNITS

AIR RESISTANCE, GURLEY

SAMPLE H27 = 29.2 GURLEY UNITS SAMPLE H49 = 30-9 GURLEY UNITS

7
REPORT NQ. SIC TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1<J?8 ANALYSIS T40-2 TABLE 1

LAB

AIR RESISTANCE, SHEFFIELD UNITS <CC/MIN> FOR SHEFFIELD TESTER IS STANDARD

SAMPLE PRINTING SAMPLE

H27 108 GRAMS PER SQUARE METER H49

0.442 SO. IN (3/4 IN. DIA)

FOR THIS ANALYSIS

PRINTING

109 GRAMS PER SQUARE METER

0RIFICE

TEST D. 1 0

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

LI 14 110.5 2.8 .55 3.0 . 71 106.9 3. 0 .57 4. 2 .95 40S 0 LI 14

LI 21 111.6 3.9 .77 4. 1 . 98 105.2 1 .3 .25 3.4 .76 40S 0 LI 2

1

LI 22S 114.9 7.2 1.43 6.4 1.53 114.0 1 0. 1 1 .93 5. 5 1 .25 40S 0 LI 22S

LI 24 S 105.0 -2.7 -.55 3. 7 . 88 99.1 -4.8 -.92 5. 6 1 .27 40S 0 LI 24S

LI 27 11 4. 0 6.3 1.25 5. 2 1.25 111.4 7.5 1 . 43 3.9 • 88 40S 0 LI 27

LI 3 2 99.7 -8.0 -1 .61 4.2 1 . 02 98.7 -5.2 -1.00 5. 3 1 .20 AOS 0 LI 32

LI 48 11 3.9 6.2 1 .23 4. 1 .98 107.5 3. 6 .69 5.2 1.17 40S 0 LI 48

LI 5 0 110.2 2.5 . 49 7.4 1 . 78 102.0 -1.9 -.37 4. 1 .92 40 S 0 LI 50

LI 57 108.1 . 4 .07 4.0 . 96 102.6 -1 .

3

-.25 5. 5 1 .24 4 OS 0 LI 57

LI 58 106. 0 -1.7 -.35 4. 6 1.10 1 03.5 -.4 -.08 3.4 .76 40S 0 LI 58

LI 73B 110.0 2.3 .45 4. 1 .98 106.5 2. 6 .49 3. 4 . 76 4 OS 0 LI 73

B

L190C 99.

7

-8.0 -1.61 4. 4 1 . 06 94.3 -9.6 -1 .84 5.8 1 .30 AOS 0 LI 90C

L21 3 106.7 -1 .

0

-.21 4. 1 . 99 100.8 -3.1 -.60 2.5 .56 40S 0 L213

L2 2 3 97.5 -10.2 -2.05 4.5 1.07 94.1 -9. 8 -1 .88 5.9 1 .32 4 OS 0 L2 2 3 L2 2 8 111.7 4.0 .79 4.6 1.11 111.0 7.1 1.36 3.9 . 88 4 0 S 0 L2 2 8 L230S 103.3 -4.4 -.89 5.4 1.29 101.8 -2. 1 -.40 4. 5 1 .01 4 OS 0 L230S

L23 3 102.0 -5.7 -1.15 3.2 .77 93.4 -10.5 -2.01 4.0 .90 4 OS 0 L2 33 L241 114.0 6.3 1 .25 3.9 .95 107.7 3. 8 .72 2.5 .56 AOS 0 L2 4 1 L249 106.8 -.9 -.19 5. 0 1.21 1 02.9 -1 .

0

-.19 4. 3 .98 40 S f L? 49 L255 108.9 1 • 2 . 23 4. 4 1 . 06 1 03.8 -.1 -.02 3.9 . 98 4 0 S 0 L255

L257A 109.0 1 .

3

.25 3.2 .78 104.9 1 .

0

. 19 4. 3 .97 AGS 0 L25 7 A L257B 107. 9 • 2 . 03 5.7 1.37 102.6 -1 .3 -.25 6. 1 1 .37 AOS 0 L257B L257C 113. 1 5. 4 1 .07 4.0 . 97 108.4 4.5 .86 2.7 .60 AOS 0 L257C

L26 0 110.2 2.5 . 49 3. 3 . 80 1 08.9 5.0 .95 5.6 1 .26 4 OS 0 L260 L262S 111.1 3.4 .67 3.7 . 89 111.4 7.5 1 .43 4. 1 .9? AOS 0 L262S

L288 116.5 8.8 1.75 3.5 • 84 1 10.7 6. 8 1.30 5. 6 1 .27 AOS 0 L28P

L301 118.3 10.6 2.11 3.9 .93 115.1 11.2 2.14 2.8 .62 AOS e L? 01 L305 108.2 .5 . 09 3.7 . 89 1 07.1 3.2 .61 2.9 .66 40 S o L3 05

L31 2 101.5 -6.2 -1 .25 3.4 • 81 99.0 -4.9 -.94 3.9 .89 AOS 0 L? 3 2 L31 8 104.0 -3.7 -.75 2. 5 . 61 100.7 -3.2 -.61 5.5 1 .25 4 OS 0 L31 8

L349 102.4 -5.3 -1 .07 4.3 1 . 03 97.8 -6. 1 -1.17 4.4 .98 AOS t- L^ac

L35 2 106.5 -1 .2 -.25 3.0 .71 1 05.7 1 .

8

.34 3. 4 .77 4 OS 0 L352

L354 109.3 1.6 .31 4.4 1 . 05 102.0 -1.9 -.37 4.2 .96 AOS 0 L? c 4 L360 105.2 -2.5 -.51 3.7 . 88 100.6 -3.3 -.6? 4.6 1 .03 4 OS 0 L360

L37 0 104.3 -3.4 -.69 2.8 . 66 100.7 -3.2 -.61 3.2 .73 40S 0 L3”0

L390 104.5 -3.2 -.65 4.

4

1.05 1 02.0 -1.9 -.37 5.4 1 . 21 4 OS 0 L390

L5 6 2 372.

5

2 64.8 53.01 1 3. 4 3. 21 371 .5 267.6 51 . 1 8 11.6 2.61 40 S * L562 L57 5 109.2 1 .5 .29 4. 6 1.11 104.5 .6 • 11 6. 3 1 .42 4 OS 0 L5 75 L587 111.5 3.8 .75 2.4 • 58 108.0 4.1 .78 5.9 l .32 40S 0 L587

L597 99.5 -8.2 -1 .65 4. 5 1 • 08 99.3 -4.6 -.88 6. 7 1 .51 AOS e L597

L6 0 0 103. 2 -4.5 -.91 5. 5 1.32 99.9 -4.0 -.77 3. 1 .71 4 OS 0 1,600

GR. MEAN • 107.7 SHEFF. 'UNITS GRAND MEAN • 103.9 SHEPF. UNITS TEST DETERMINATIONS • 1 0 SD MEANS - 5.0 SHEFF. UNITS AVERAGE SDR • SD 0F MEANS • 4.2 SHEPF. UNITS

5.2 SHEPF. UNITS AVERAGE SDR • 4.

4

40 LABS IN GRAND

SPEFF. UNITS MFANS

L182B 434.5 326.8 65.42 28.2 6. 77 420.0 316. 1 60.46 1 6. 0 3.60 4 OB LI 82

B

L24 3B 437. 4 329.7 66. 00 17.9 4. 28 421 .7 31 7. 8 60.78 20. 5 4.63 4 0 B L247B

L484 391.0 283.3 56.71 19.7 TOTAL NUMBER 6F LABORATORIES REPORTING • 4. 72 44 374.0 270.1 51 .66 15.1 3.39 40 B L4 84

Best Values: H27 108 + 8 Sheffield units

H49 104 + 8 Sheffield units

Data from the following laboratories were omitted from

the grand means because a non-standard test procedure

was used: 562.

8
REPORT NO. 51G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T40-2 TABLE 2 AIR RESISTANCE. SHEFFIELD UNITS (CC/MIN) FOR 0.442 SO. IN (3/4 IN. SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

JANUARY 1978

DIA! ORIFICE

LAB MEANS COORDINATES AVG CODE F H27 H49 MAJOR MINOR R. SDR VAR PROPERTY— -TEST INSTRUMENT- --CONDITIONS

L223 0 97. S 94,

1

-14.2 .7 1.19 40 S A I R RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER ORIFICE 1 L597 0 99.5 99 • 3 -9.0 2.8 1.30 40 S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER OBI PICE ) LI 9 0C a 99.7 94,3 -12.5 -.8 1.18 40S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER ORIFICE 1 Li 3 2 a 99.7 98,7 -9.3 2.2 1.11 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICF ) L31 2 a 101.5 99. 0 -7.9 1 . 1 .85 40S AIR RESISTANCE. SHEFFIELD ( 3/4 I NCH diameter 0BIFICF 1 L233 a 102.0 93.4 -11 .6 • 3.1 .83 40S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER OBIFICE > L349 a 102. 4 97. 8 -8.1 -.3 1.00 40S A I R RESISTANCE, SHEFFIELD < 3/4 I NCH DIAMETER OBI PICE

>

L60 0 a 103.2 99. 9 -6.0 .5 1.01 40S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER ORIFICF > L230S a 103. 3 101.8 -4.6 1.8 1.15 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE ) L31 8 a 104.0 100. 7 -4.5 .5 .93 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF > L370 a 104.3 100.7 -4.7 .3 .69 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER OBIFICF > L3 90 a 104.5 102.0 -3.6 1.0 1.13 40S AIR RESISTANCE, SHEFFIELD (3/4 INCH DIAMETER ORIFICE > Li 2 4 S a 105.0 99. 1 -5.4 -1.3 1.07 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF

1

L36 0 a 105. 2 100.6 -4.2 -.4 .96 40S AIR RESISTANCE, SHEFFIELD (3/4 INCH DIAMETER ORIFICF » Li 5 8 a 106.0 103. 5 -1.5 1.0 .93 40S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF » L352 a 106.5 105.7 .4 2.1 .74 40S AI R RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE 1 L21 3 a 106.7 100.8 -3.0 -1.4 .77 40S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF

1

L249 a 106,8 102.9 -1.4 -.0 1 . 09 40S AI R RESISTANCE, SHEFFIELD (3/4 INCH DIAMETER OBIFICF

1

L257B a 107.9 102.6 -.8 -1.0 1.37 40S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER OBIFICF > Li 57 a 108. 1 102. 6 -.7 -1.2 1.10 40S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE 1 L305 a 108.2 107.1 2.6 1 .9 .77 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE 1 L255 a 108.9 103. 8 .7 -.9 .97 40S AIR RESISTANCE, SHBPFI ELD ( 3/4 I NCH DIAMETER ORIFICE ) L257A a 109.0 104.9 1.6 -.2 . 87 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER OBIFICF

1

L575 a 109.2 104. 5 1 .4 -.6 1.26 40S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF

1

L3 54 a 109.3 102.0 -.3 -2.4 1 . 00 40S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH diameter ORIFICE 1 L173B a 110.

0

106.5 3.4 .2 . 87 40 S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER OBIFICF!

LI 50 a 110.2 102.0 .3 -3. 1 1.35 40S AIR RESISTANCE. SHEFFIELD ( 3/4 I NCH DIAMETER ORIFICE

)

L26 0 a 110.2 108.9 5.3 1.7 1 . 03 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER OBIFICE

)

Li 14 a 110.5 106.9 4.1 . 1 .83 40S AIR RESISTANCE. SHEFFIELD ( 3/4 I NCH DIAMETER ORIFICF > L2 62S a 111.1 111.4 7.7 2.7 .90 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF

1

L587 a 111.5 108.0 5.5 .1 .95 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE 1 Li 21 a 111.6 105. 2 3.6 -1.9 . 87 AOS AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER OBIFICr

)

L228 a 111.7 111.0 7.9 2.0 1.00 40S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER OBIFICF

1

L257C a 113.1 108. 4 6.9 -.8 . 79 4 OS AIR RESISTANCE, SHEFFIELD ( 3/4 I NCH DIAMETER OBIFICF

)

LI 4 8 a 113.9 107.5 6.8 -2.0 1 . 07 AOS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE 1

L241 a 114.0 107.7 7.1 -1.9 .75 40 S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF

)

LI 2 7 a 114.0 111.4 9.7 .6 1.07 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE 1 L122S a 114.9 114.0 12.2 1.8 1.39 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER OBIFICE ) L2 8 8 a 116.5 110.7 10.9 -1.7 1.05 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF ) L301 a 118.3 115.1 15.4 .1 .78 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICF 1 L562 (V 3T2.5 371.5 376.4 -7.5 2.91 4 0 S AI R RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE 1 L484 391.0 374. 0 390,9 -19.2 4. 06 40 B AIR RESISTANCE, BFNDTSEN, WG 1 50

Li 82 B 434.5 420.0 4S4.2 -19.0 5.19 40 B AIR RESISTANCE, BENDTSEN. WG 150 L243B 437.4 421.

7

457.5 -19.9 4.46 40B AIR RESISTANCE. BENDTSEN, WG 150 GMEANS: 107.7 103.9 1.00 95% ELLIPSE: 18.2 4.0 WITH GAMMA - 46 DEGREES

9
SHEFF.

UNITS

1

00

105

1

0

1

5'

120

Too 105 110 115

SHEFF. UNITS

120 125 130

(jj + . X . « NOT IN GRAND MEANS

=C ANALYSIS T40-2

SAMPLE H27

AIR RESISTANCE, SHEFFIELD

SAMPLE H27 = 108. SHEFF . UNITS SAMPLE H49 = 104. SHEFF. UNITS

I I I I I I

10
REPORT NO. 51 G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1970 ANALYSIS T41-1 TABLE 1 AIR RESISTANCE. HIGH RANGE. GURLEY MERCURY FLOTATION

DIRECT READING. SEC/10 CC. MERCURY DENSITY

SAMPLE RELEASE BASE SAMPLE BACKI NG TEST D. • 10 LAB B73 116 GRAMS PER SQUARE METER E64 98 GRAMS PER SQUARE METER

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

LI 2 2 1089. -140. -.81 276. .53 597. 82. .97 115. 1 .04 41G 0 LI 22

LI 2 8 12 58. 28. • 16 364. . 70 501 . -15. -.18 89. .80 4 1 G 8 LI 2B

LI 3 4 1031. -198. -1.14 296. .57 460. -55. -.66 63. . 57 4 1 G e LI 34 L166M 1267. 38. • 22 546. 1 . OS 575. 60. .71 113. 1 .02 4JG 0 LI 66M

LI 9 5 1307. 77, .45 773. 1.49 51 3. -3. -.03 170. 1.53 4 1 G 0 LI 95

L224 1 A0 8 . 179. 1 . 03 715. 1.37 657. 1 41 . 1 .68 98. . 88 4 1 G 0 L224

L2 3 0 1466. 237. 1 . 37 846. 1.63 512. -4. -.05 72. .65 410 0 L230

L259 1261 . 32. • 19 549. 1.06 528. 13. .15 1 32. 1.19 41G 0 L259

L358 979. -250. -1 .44 393. .76 428. -87. -1 .04 67. .61 4 1 G 0 L358 L396T 923. -306. -1.76 604. 1.16 356. -160. -1 .90 124. 1.11 41 G 0 L396T

L557 1293. 63. .37 413. .79 556. 40. .48 141 . 1 .27 4 1 G 0 L557

L559 1137. -93. -.53 538. 1.03 460. -56. -.67 145. 1 .31 41 G 0 Lf 59 L56 0 1316. 87. .50 6 04. 1.16 398. -117. -1 .40 64. .58 4 1 G 0 L560

L561 1179. -50. -.29 302. .58 612. 97. 1.1*= 1 59 . 1 .43 4 1 G 0 1.561 L576 1524. 294. 1.70 587. 1.13 579. 64. .76 111. 1.00 41G 0 L576

GR. MEAN * 1229. SEC/10 CC GRAND MEAN - 515. SEC/1 0 CC TEST DETERMINATIONS • 10 SD MFANS 174. SEC/10 CC SD OF MEANS a 03 O SEC/10 CC 15 LABS IN GRAND MEANS

AVERAGE SDR - 520. SEC/10 CC AVERAGE SDR • 111. SEC/10 CC

TOTAL NUMBER OF LABORATORIES REPORTING • 15

Best Values: B73 1250 +

E64 600. +

270 second per 100 cc, 180 mercury density

(direct reading)

The values reported here are the time in seconds

required for the displacement of 10 ml of air through

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

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

REPORT N0. 5 1 G TAPPI C0LLAB0RATI VE REFERENCE PROGRAM JANUARY 1970 ANALYSIS TA1-1 TABLE 2 AIR RESISTANCE. HIGH RANGE. GURLEY MERCURY FLOTATION

DIRECT READING. SEC/10 CC. MERCURY DENSITY

LAB MEANS COORDINATES AVG

CODE F B73 E64 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST I NSTRUMENT- --C0N DI TI0NS

L396T 0 923. 356, -339. -64 . 1.14 4 1 G A I R RESISTANCE. HIGH RANGE, GURLEY MERCURY FLOTAT ION L358 0 979. 428. -264. -11 . .68 41 G AIR RESISTANCE. HIGH RANGE, GURLEY MERCURY FLOTATION

LI 34 0 1031. 460. -205. 5. .57 41 G AIR RESISTANCE. HIGH RANGE, GURLEY MERCURY FLOTATION

LI 22 0 1089. 597. -110. 119. .78 41 G AIR RESISTANCE. HIGH RANGE, GURLEY MERCURY FLOTATION

L55 9 0 1137. 460. -105. -27. 1.17 41 G AIR RESISTANCE. HIGH RANGE. GURLFY MERCURY FLOTATION

LS61 0 1179. 6 12. -20. 1 07. 1 .01 4 1 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

LI 2 8 0 1258. 501 . 23. -22. .75 4 1 G AIR RESISTANCE, HIGH RANGE. GURLEY MERCURY FLOTATION

L25 9 0 1261 . 528. 35. 3. 1.12 41 G AIR RESISTANCE, HIGH RANGE. GURLFY MERCURY FLOTATION

L16 6M 0 1267. 575. 53. 46. 1.03 41 G AIR RESISTANCE. HIGH RANGE. GURLFY MERCURY FLOTATION

L557 0 1293. 556. 72. 20. 1.03 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

LI 95 0 13 07. 513. 73. • 25. 1.51 4 1 G AIR RESISTANCE, HIGH RANGE, GURLFY MERCURY FLOTATION

L56 0 0 1316. 398. 49. -138. . 87 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L22 4 0 1408. 657. 212. 83. 1.13 41 G AIR RESISTANCE. HIGH RANGE, GURLEY MERCURY FLOTATION

L230 0 1466. 512. 226. -73. 1.14 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L57 6 0 1524. 579. 300. -24. 1.07 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

GMEANS: 1229. 515. 1.00 95* ELLIPSE: 516. 197. WITH GAMMA 16 DEGREES

11
SEC/10

CC

100

200

300

400

500

600

700

800

900

RIR RESISTANCE, GURLEY HG FLOTATION

SAMPLE B73 = 1229. SEC/10 CC SAMPLE E64 = 515- SEC/10 CC

J L _l L.

o

o

CL, CL

A co

CD

. X . # NOT IN GRAND MEANS

LlJ ANALYSIS T 4 1 — 1

o

o

o

o

o

o

©

-©-

©

-©- ©

© ©

©

o

SAMPLE B73

“i 1 1 r n 1 r 1500

i I n r 600 700 800 900 1100 1300

SEC/10 CC

1700 900

12
RE PORT NO. S1G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T44-1 TABLE 1 SMOOTHNESS, PARKER PRINTSURF

JANUARY 1978

SAMPLE PRINTING SAMPLE WRITI NG TEST D. 10 LAB Jll 102 GRAMS PER SQUARE METER E36 72 GRAMS PER SQUARE METER

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

LI 22 5.71 . 84 2.12 .21 1.18 4.07 . 79 2.16 .23 1 .57 4*P fl L 1 22

LI 3 6 4.88 .00 .00 .23 1.30 4.02 - .06 -.18 .15 1 .02 44P 6 LI 36

LI 62 4.88 .01 .02 .22 1.27 4.12 .04 .11 .10 .67 44P 0 LI 82

LI 8 3 4.32 -.56 1.42 .09 . 52 3.70 -.38 1.06 .07 .46 44P 0 Lt 83 L223 4.88 .00 .01 .17 .95 3.98 -.10 -.28 .17 1 .19 4 4 P 6 L2 2 3

L266 4.93 .05 .13 .11 .63 4.27 .19 .51 .17 1 .14 44P 0 L2 88

L31 7 4.79 -.09 -.23 .16 . 90 3.89 -.19 -.54 .14 .94 44 P 0 L317

L56 8 4.63 -.25 -.63 .22 1.25 3.82 -.26 -.73 .15 1 . 02 44 P 0 L5 88

CR. MEAN • 4.88 MICRONS GRAND MEAN - 4.00 MICReNS TEST DETERMINATIONS • 1< SD MEANS - . 39 MICRONS SD OF MEANS • .36 MIC RON

S

8 LABS IN GRAND MEANS

AVERAGE SDR - .18 MICRONS AVERAGE SDR - .15 MICRONS

TOTAL NUMBER OF LABORATORIES REPORTING * 8

Best Values: Jll 4.8 microns

E36 4.0 microns

REPORT NO. E1G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 19^8 ANALYSIS T44-I TABLE 2 SMOOTHNESS, PARKER PRINTSURF

LAB MEANS COORDINATES AVG

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

LI 83 0 4.32 3.70 -.67 .10 .49 44 P SMOOTHNESS, PARKER PRINTSURF

L56 0 0 4.63 3.82 -.36 -. 03 1.13 44P SMOOTHNESS, PARKER PRINTSURF

L31 7 0 4.79 3.89 -.20 -.08 .92 44 P SMOOTHNESS, PARKER PRINTSURF

LI 3 6 0 4.88 4.02 -. 04 -.05 1.16 44P SMOOTHNESS, PARKER PRINTSURF

L22 3 0 4.88 3.98 -.07 -.08 1.07 44 P SMOOTHNESS, PARKER PRINTSURF

LI 82 0 4.88 4.12 . 03 .03 .97 44 P SMOOTHNESS, PARKER PRINTSURF

L2 88 0 4.93 4.27 . 16 .10 . 88 44 P SMOOTHNESS, PARKER PRINTSURF

LI 22 0 5.71 4.87 1.15 • 01 1.37 44P SMOOTHNESS, PARKER PRINTSURF

GMEANS

:

4.88 4. 08 1.00 95* ELLIPSE: 1.84 .25 WITH GAMMA • 42 DEGREES

13
REPORT N0 • 51

G

TAPPI C0LLAB0RAT I VE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T45-1 TABLE 1 SMOOTHNESS, SHEFFIELD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

SAMPLE PRINTING

LAB J1 1 102 GRAMSi PER SQUARE METER

CODE MEAN DEV N. DEV SDR R. SDR

LI 00 145. 3 7. 1 1.11 1 2.5 1.25

LI 07 153.7 15.5 2.42 1 0. 6 1 . 06

LI 0 8 131.3 -6. 9 -1.08 8.8 . 88

LI 1 4 144. 6 6.4 1 . 00 11.4 1.13

LI 1 5 136.3 -1.9 -.29 9.5 . 95

LI 2 1 141 .

6

3.4 .53 9.6 .95

LI 2 2 135.8 -2.4 -.37 1 0.4 1 • 04

LI 2 3 137.4 -.8 -.12 12.3 1.23

LI 24 126.5 -11.7 -1 . 82 7.6 .76

LI 2 5 129.3 -8.9 -1 . 38 6.2 • 62

LI 26 141.8 3.6 .57 14.1 1.41

LI 2 8 145.0 6.8 1 . 07 8.9 . 89

LI 3 2 131 .

6

-6.6 -1.03 8.3 . 83

LI 3 4 139.9 1.7 .27 11.7 1.17

LI 39S 143.1 4.9 .76 9.6 • 96

LI 4 8 145. 7 7.5 1 .17 11.8 1.18

LI 50 131.5 -6.7 -1 .04 9.5 . 95

LI 52 145. 7 7.5 1.17 11.0 1.10

LI 53 150.5 12.3 1 .92 1 0. 3 1.03

LI 57 145. 3 7.1 1.11 11.6 1.16

LI 58 134. 0 -4.2 -.65 6.9 • 69

LI 59 140.

3

2.1 .33 9.8 . 98

LI 62 137. 0 -1 .

2

-.19 8.0 . 80

LI 6 6 134.9 -3. 3 -.51 14.5 1.44

LI 6 7 134. 3 -3.9 -.60 8.8 . 88

LI 73B 139.0 • 8 .13 9.9 .99 L176S 140.3 2.1 .34 9.0 . 90

LI 83 S 140.5 2.3 .37 9.0 . 89

LI 90C 137. 0 -1.2 -.19 11.7 1.17

LI 90 R 145. 9 7.7 1 .21 12.5 1.25

LI 95 134.9 -3.3 -.51 11.0 1.10

L203 134.5 -3.7 -.58 9.7 .97

L21 1 133.1 -5. 1 -.79 8.2 • 62

L21 3 126.7 -11.5 -1.80 8.6 . 86 L223 129. 8 -8.4 -1 .31 1 0.6 1 • 06 L224 147.7 9.5 1 .48 11.8 1.18 L226B 125.5 -12.7 -1 .98 9. 3 .93 L228 136.7 -1 .5 -.23 9. 1 • 91 L230S 138.7 .5 .08 12.6 1.26

L231 146.7 8.5 1 .34 12.2 1 • 22 L232S 1 30.3 -7. 9 -1.23 9.7 . 97 L233 141 .

4

3.2 .50 1 3.3 1.33

L2 41 139. 3 1 . 1 • 18 11.3 1.13

L249 141.0 2.6 • 44 1 0. 0 1 • 00 L254 141.5 3.3 • 51 1 0.7 1 .07 L255 134.3 -3.9 -.61 8.4 . 84 L257A 136.1 -2.1 -.33 5.4 .54 L257B 137.7 -.5 -.08 8.9 . 89 L257C 140.7 2.5 .39 11.2 1.12 L259 148. 0 9.8 1 .53 1 0.5 1.05

L26 0 141.8 3.6 • 57 6.0 .60

L261 137. 1 -1 . 1 -.16 11.0 1.10

L262 137. 4 -.8 -.12 5. 1 .51

L2 75 145. 3 7. 1 1 • 12 9.3 . 93 L277 1*0.7 2.5 .39 11.4 1.14

L27 8 128.9 -9.3 -1.46 9.4 .94 L28 1 142.5 4.3 .68 12.3 1.23

L285 130.7 -7.5 -1.16 1 3.9 1 . 39

L2 8 8 132. 1 -6. 1 -.96 9. 1 .90

L291 S 134.7 -3. 5 -.54 9.8 . 98

L29 7 137. 3 -.9 -.13 1 0.0 1 • 00 L301 135.5 -2.7 -.41 7.9 .79 L305 137. 9 -.3 -.04 5.9 .59 1308 134.7 -3.5 -.55 9.8 .98

L31 2 129.7 -8.5 -1 .33 8.6 • 88

SAMPLE writing TEST D. - 1 5 E36 72 GRAMS PER SQUARE METER

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

107.8 2.0 • 44 4. 7 .75 45S 0 LI 00 116.3 1 0. 6 2.25 9.2 1 .47 45S *• LI 07

1 05.3 -.5 -.10 5. 1 . 82 45S 0 LI 08 107.0 1 .2 .27 8. 4 1 .35 45S 0 LI 1 4 109.0 3.2 .69 6.3 1 . 02 45S 0 LI 1 5

109.1 3. 3 .71 6. 0 .97 45S 0 LI 21 107.2 1 .4 .31 11.9 1 .92 4 5S 0 LI 22 99.9 -5.9 -1.25 8. 7 1 .39 45S fi LI 23 95.9 -9.8 -2.09 7. 4 1.19 45S 0 LI 24 102.7 -3. 1 -.66 7.0 1.13 45S 0 LI 25

110.1 4. 3 • 92 5. 0 .81 45S 0 LI 26 108.7 3.0 .64 6.4 1 .03 45S 0 LI 28 103.5 -2.2 -.47 5.7 .91 45S 0 LI 32 101.2 -4.6 -.97 5.6 .90 45S 0 LI 3*

1 09.5 3.7 .79 4. 6 .74 45S o LI 39S

1 1 0.2 4.4 .95 6. 0 .96 45S 0 LI 48 103.2 -2.6 -.54 6. 3 1 .01 45S 0 LI 50 112.0 6.2 1 .33 4. 1 . 67 45S 6 LI 52

1 18.3 12.5 2.67 5.6 .90 45S « LI 53

1 04.9 -.9 -.19 7. 4 1.18 45S 0 LI 57 104.0 -1 .

8

-.37 3.4 .54 45S 0 LI 58 103.3 -2.5 -.53 4. 5 .72 45S 0 LI 59 105.3 - • 4 -.09 5.2 .83 45S 0 l 1 62 104.1 -1 .7 -.36 4.9 . 80 45S P LI 66 104.3 -1.4 -.30 2.6 • 42 45S 0 LI 67

105.7 -. 1 -.02 3. 7 .60 45S 0 LI 730

107.1 1 .

3

.28 4. 7 .76 45S 0 LI "*6S 109.5 3. 8 • 61 1 0. 1 1 .63 4 5S 0 LI 83S

1 05.8 . 0 .01 7.7 l .24 45S 0 LI 90C 115.9 1 0.2 2.17 9. 1 1 .46 45S 0 LI 90R

106.3 • 5 • 1 1 7. 4 1.19 45S 0 LI 95 105.5 -. 3 -.06 8. 6 1 .38 45S 0 L203

106.9 1 .

2

.25 6. 2 1 .00 4 5S o 1.211 102.7 -3.0 -.64 8.7 1 .39 4 5R 0 L21 3 97.5 -8. 3 -1.77 7. 4 1.19 45S o L223

117.1 11.4 2.43 4.6 .74 45S 0 L2? * 98.4 -7.4 -1 .57 6. 5 1.05 45S 0 L226B

105.1 -.6 -.13 4.6 .74 45S 0 L228

107.2 1 .

4

.31 5. 8 .93 45S 0 L? 3 OS 106.3 .6 .12 ft. 7 1 .40 45S 0 LC 31 105.3 - • * -.09 7. 4 1.19 45S o L2 32S

1 00.7 -5.1 -1 . 08 7. 8 1 .25 45S 0 L233

1 07.3 1.6 .34 7.3 1.17 45S 0 L2 4

1

1 04.7 -1.0 -.22 5.2 . 83 45S 0 L2A9

105. 1 -. 7 -.15 7. 0 1.12 45S 0 L25 4

98.4 -7.4 -1 .57 5.2 . 84 45S 0 L255

102.7 -3.0 -. 6* 5.9 .94 4 5 S 0 L 2 5 7 A

1 00.0 -5.8 -1.23 6. 0 .96 45S 0 L257B

109.8 4.0 • 86 4.5 .73 4 5S 0 L257C

1 1 0.4 4.6 .99 6. 9 1.10 45S fl L259

108.1 2.3 .49 «; 3. 8 • 61 45S 0 L260

100.2 -5.6 -1.18 4. 4 .70 45S 0 L2C 1 155.9 50. 2 10.69 7.9 1 .26 45S ft L262 122.7 1 6.9 3.60 7.5 1 .21 45S X L275

1 10.9 5.2 1.10 7.9 1 .27 45S 0 L277

100.5 -5. 2 -1.11 6. 7 1 .07 45S 0 L278

1 06.4 . 6 • 14 5. 0 . 80 45S 0 L281 103.3 -2.5 -.53 7. 8 1 .25 45S 0 L2 85 103.5 -2.3 -.49 3. 8 . 62 45S 0 L238

101.8 -4.0 -.84 6.9 1.11 45S 0 L291 S

106.3 .6 .12 4.4 .71 45S 0 L2 ' 7 110.1 4. 3 .92 5.2 . 83 4 5S 0 L7 1 106.8 1.0 .22 4. 5 .72 45S • L3 >5 103.4 -2.4 -.50 4.5 .72 45S 0 L3 08 105.0 -. 8 -. 16 3. 3 .53 45S 0 L31 2 14
REPORT NO. 51G TAPPI COLLABORATIVE REFERENCE PROGRAM JANBARY I STS ANALYSIS T45-1 TABLE 1 SMOOTHNESS, SHEFFIELD DNITS

SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB SAMPLE

J1 1 PRINTING

102 GRAMS PER SQUARE MBTER

SAMPLE E36 WRITING

72 GRAMS PER SQUARE METER TEST D. 15 C0DE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR R, SDR VAR F LAB

L317 133.9 -4.3 -.66 8.9 .89 104.3 -1.4 -.30 6. 8 1.09 4 5S 0 L?17

L31 8 135.3 -2.9 -.45 14.5 1 .45 105.5 -. 3 -.06 5. 6 .90 45S 0 L31 8 L321 117.7 -20.5 -3.21 7.0 .70 95.7 -10. 1 -2.15 6. 2 1 .00 45S o L321 L323 137.5 -.7 -.10 8.8 • 88 100.1 -5.7 -1.21 7. 7 1.24 45S 0 L323 L326 133.6 -4.6 -.72 7.8 • 78 106.9 1.2 . 25 4.9 .78 45S 0 L326 L328 143.0 4.8 .75 11.8 1.18 110.5 4.7 1 .00 6.4 1 . 03 45S 0 L328

L341 132. 8 -5.4 -.64 5.4 .54 99.5 -6.3 -1 .34 6, 0 .97 45S 0 L^At L342 144.7 6.5 1 .01 8.8 . 88 110.3 4.6 .98 7.2 1.16 45S 0 L342 L349 134.9 -3.3 -.51 12.1 1.21 103.8 -2.0 -.42 6. 7 1 .00 45S 0 L349

L352 145. 0 6.8 1 .07 13.1 1. 31 107.1 1.3 .28 6. 8 1 .09 45S 0 L352

L36 0 139.9 1.7 .27 11.9 1 .19 104.9 -.6 -.17 4.4 .71 ASS 0 L360

L366 139.8 1.6 .25 16. 0 1 . 60 104.6 -1.2 -.25 5. 3 .85 45S 0 L366

L370 139.0 .8 .13 1 0. 2 1 • 02 101 .6 -4.2 -.88 6. 8 1 . 09 45S 0 L370

L372 139. 8 1.6 .25 6. 3 .63 109.9 4.1 .88 7.1 1.15 45S 0 L3"T 2 L376 141.9 3.7 .58 8.9 . 89 111.1 5.3 1 .13 5.7 .92 A5S 0 L3 76

L37 8 140. 1 1 .9 .29 7.7 • 77 102.3 -3.5 -.74 8. 4 1.36 45S 0 L378

L380 130.9 -7.3 -1.13 1 0.0 1 . 00 101.3 -4.4 -.94 6.7 1 .07 4 5S 6 L380

L382 135.4 -2.8 -.44 7.1 . 71 100.5 -5.2 -1.11 5. 1 .83 45S 0 L382

L390 132.3 -5.9 -.91 10.8 1 . 08 99.0 -6. 8 -1 .44 7. 1 1.14 45S 0 1390

L39 6M 141.7 3.5 .54 5.6 .56 109.3 3.6 .76 7.5 1.21 45S 0 L396M

L554 1*4.9 6.7 1 .05 8.6 . 86 111.3 5. 5 1.18 7. 2 1.16 4 5S 0 L554

L561 146.0 7.8 1 . 22 8. 1 . 81 105.7 -.1 -.02 6.2 1 .00 45S 0 L561

L571 143. 3 5. 1 .80 10.3 1 . 03 111.3 5.6 1 .19 6.9 1.11 A5S 0 L57I L575 150. 3 12.1 1.90 13. 1 1.31 1 07.8 2.0 .44 6.5 1 . 04 45S 0 L575

L587 142.3 4. 1 .65 8.0 . 80 109.3 3.6 .76 5.9 .95 45S 0 L5 87 L597 129.5 -8.7 -1.35 9.5 . 95 96.1 -9.6 -2.05 8.0 1 .29 45 S 0 L597

L600 148.1 9.9 1.54 1 0.4 1. 04 114.5 8.7 1 .86 4.6 .73 45 S 0 L600

GR. MEAN

SD MEANS

• 138.2

- 6.4

SHEFF. UNITS

SHEFF. UNITS AVERAGE SDR - 10.0

GRAND MEAN - SD 6F MEANS - SHEFF. UNITS105.8

4.7 SHEFF. UNITSSHEFF. UNITS AVERAGE SDR - 6.2

TEST DETERMINATIONS * 15 88 LABS IN GRAND MEANS

SHEPP. DNITS

LI 74 236.7 98.5 15.39 7.0 • 70 215.1 1 09.3 23.29 3.2 .51 4SR Ll 74 TOTAL NUMBER OF LABORATORIES REPORTING - 93

Best Values: Jll 140 + 10 Sheffield units

E36 106 + 7 Sheffield units

The following laboratories were omitted from the grand means because of extreme test results: 262.

Data from the following laboratories were received

too late for proper processing and inclusion in the grand means: 305, 370.

15
RE PORT N6. 51G TAPPI C0LLAB6RAT I VE REFERENCE PROGRAM JANUARY 1978 ANALYSIS TA5-1 TABLE 2 SMOOTHNESS, SHEFFIELD UNITS

SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVO

C0DE F J1 1 E36 MAJ0R MINOR R. SDR VAR PROPERTY- --TEST INSTRUMENT ---CONDITION S

L321 * 117.7 95.7 -22.7 3.0 .85 45 S SMOOTHNESS. SHEFFIELD

L226B 0 125.5 98.4 -14.6 .9 .99 45S SMOOTHNESS. SHEFFIELD

LI 2 4 0 126.5 95.9 -15.1 -1.7 .98 45S SMOOTHNESS. SHEFFIELD

L21 3 0 126.7 102.7 -11.3 3.9 1.13 45S SMOOTHNESS. SHEFFIELD

L278 0 128. 9 100.5 -10.6 • 8 1.01 45S SMOOTHNESS. SHEFFIELD

LI 25 0 129.

3

102.7 -9.1 2.3 .88 45S SMOOTHNESS. SHEFFIELD

L5 97 0 129.5 96.1 -12.5 -3.2 1.12 45S SMOOTHNESS. SHEFFIELD

L31 2 0 129.7 105.0 -7.5 4. 1 .70 45S SMOOTHNESS, SHEFFIELD

L22 3 0 129. 8 97.5 -11.6 -2. 3 1.12 45S SMOOTHNESS, SHEFFIELD

L232S 0 130.3 105.3 -6. 8 4.0 1 • 08 45S SMOOTHNESS, SHEFFIELD

L285 0 130.7 103.3 -7.6 2.1 1.32 45S SMOOTHNESS, SHEFFIELD

L38 0 0 130.9 101.3 -8.5 . 3 1.03 45S SMOOTHNESS, SHEFFIELD

LI 08 0 131.3 105. 3 -6. 0 3.4 .85 45S SMOOTHNESS, SHEFFIELD

LI 5 0 0 131.5 103. 2 -7.0 1.6 .98 45S SMOOTHNESS. SHEFFIELD

LI 3 2 0 131.6 103. 5 -6.7 1.8 . 87 45S SMOOTHNESS. SHEFFIELD

L28 8 0 132. 1 103. 5 -6.4 1 .5 .76 45 S SMOOTHNESS, SHEFFIELD

L390 0 132.3 99.0 -8.6 -2.4 1.11 45S SMOOTHNESS. SHEFFIELD

L341 0 132.8 99.5 -8.0 -2.3 .75 45S SMOOTHNESS, SHEFFIELD

L21 1 0 133. 1 106.9 -3. 6 3.8 • 91 45S SMOOTHNESS, SHEFFIELD

L32 6 0 133. 6 106.9 -3.2 3.5 .78 45S SMOOTHNESS, SHEFFIELD

L31 7 0 133.9 104.3 -4.3 1.2 .99 45 S SMOOTHNESS. SHEFFIELD

LI 58 0 134.0 104.0 -4.5 .9 .61 45S SMOOTHNESS, SHEFFIELD

L255 0 134. 3 98.4 -7.3 -4.0 .84 A5S SMOOTHNESS, SHEFFIELD

LI 67 0 134. 3 104.3 -4.0 1 .

0

.65 45S SMOOTHNESS, SHEFFIELD

L203 0 134.5 105. 5 -3.3 1.8 1.18 45S SMOOTHNESS, SHEFFIELD

L30 8 0 134.7 103.4 -4.2 -.0 .85 45 S SMOOTHNESS, SHEFFIELD

L291 S 0 134.7 101.8 -5.1 -1.4 1.05 45S SMOOTHNESS, SHEFFIELD

L34 9 0 134. 9 103.8 -3.8 .2 1.14 45 S SMOOTHNESS, SHEFFIELD

LI 66 0 134.9 104. 1 -3.6 . A 1.12 45 S SMOOTHNESS, SHEFFIELD

LI 95 0 134.9 106.3 -2.4 2.2 1.14 45S SMOOTHNESS, SHEFFIELD

L31 8 0 135. 3 105.5 -2.5 1.3 1.17 45 S SMOOTHNESS, SHEFFIELD

L382 0 135. 4 100.5 -5.2 -2.8 .77 45S SMOOTHNESS, SHEFFIELD

L3 01 0 135.5 110.1 • 2 5. 1 .81 45S SMOOTHNESS. SHEFFIELD

LI 2 2 0 1 35. 8 107.2 -1 .2 2.5 1.48 45S SMOOTHNESS. SHEFFIELD

L257A 0 136.1 102.7 -3.4 -1.3 .74 45S SMOOTHNESS, SHEFFIELD

LI 1 5 0 136.3 109.0 .3 3.7 .99 45 S SMOOTHNESS. SHEFFIELD

L228 0 136.7 105. 1 -1.6 .3 .83 45S SMOOTHNESS. SHEFFIELD

L190C 0 137. 0 105. 8 -1 .0 .7 1.21 45S SMOOTHNESS, SHEFFIELD

LI 62 0 137.0 105. 3 -1.2 . 3 .81 45S SMOOTHNESS, SHEFFIELD

L261 0 137. 1 100.2 -3.9 -4.0 .90 45S SMOOTHNESS, SHEFFIELD

L297 0 137. 3 106.3 - • 4 1 .0 . 85 45S SMOOTHNESS, SHEFFIELD

LI 2 3 0 137. 4 99.9 -3.9 -4.5 1.31 45S SMOOTHNESS. SHEFFIELD

L26 2 * 137. 4 155.9 27.

1

42.2 . 89 45S SMOOTHNESS, SHEFFIELD

L32 3 0 137.5 100.1 -3.7 -4.4 1 .06 45S SMOOTHNESS, SHEFFIELD

L257B 0 137.7 100.0 -3.6 -4.5 .92 45S SMOOTHNESS. SHEFFIELD

L30 5 n 137.9 106.8 . 4 1.0 .65 45 S SMOOTHNESS, SHEFFIELD

L230S 0 138.7 107.2 1.2 .9 1.10 45S SMOOTHNESS. SHEFFIELD

L37 0 * 139.0 101.6 -1 .6 -3.9 1 . 05 45S SMOOTHNESS, SHEFFIELD

L173B 0 139.0 105.7 .6 -.5 .79 45S SMOOTHNESS, SHEFFIELD

L24

1

0 139.3 107.3 1 .

8

.7 1.15 45S SMOOTHNESS, SHEFFIELD

L372 0 139. 8 109.9 3.6 2.5 .89 45 S SMOOTHNESS. SHEFFIELD

L36 6 0 139. 8 104. 6 .7 -1.9 1.23 45S SMOOTHNESS, SHEFFIELD

LI 3 4 0 139.9 101.2 -1 . 1 -4.8 1.03 45S SMOOTHNESS, SHEFFIELD

L36 0 0 139.9 104.9 1 .0 -1.7 .95 45S SMOOTHNESS. SHEFFIELD

L378 0 140. 1 102.3 -.4 -3.9 1.06 45S SMOOTHNESS, SHEFFIELD

LI 59 0 140. 3 103.3 .4 -3.2 .85 45S SMOOTHNESS. SHEFFIELD

LI 76 S 0 140.3 107.1 2.5 -.1 .83 45S SMOOTHNESS, SHEFFIELD

LI 83 S 0 140.5 109. 5 4.0 1.8 1.26 45S SMOOTHNESS, SHEFFIELD

L277 0 140.7 110.9 4.9 2.9 1.21 45S SMOOTHNESS. SHEFFIELD

L257C 0 140.7 109.8 4.3 2. 0 .93 45S SMOOTHNESS. SHEFFIELD

L249 0 141.0 104.7 1 • 8 -2.4 .92 45S SMOOTHNESS. SHEFFIELD

L23 3 0 141.4 100.7 -.1 -6.0 1.29 45S SMOOTHNESS. SHEFFIELD

L25 4 0 141.5 105. 1 2.4 -2.4 1.10 45S SMOOTHNESS, SHEFFIELD

LI 21 0 141.6 109. 1 4.7 .9 .96 45S SMOOTHNESS, SHEFFIELD

L396M 0 141.7 109.3 4.9 1.1 • 88 45S SMOOTHNESS, SHEFFIELD

16
REPORT NO. 510 TAPP1 CO LLA BO RAT I VB REFERENCE PROGRAM JANUARY 19?8 ANALYSIS T45-1 TABLE 2 SMOOTHNESS, SHEFFIELD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG

CODE F Jll E36 MAJOR MIN0R R. SDR VAR PROPERTY---TEST I NSTRUMENT- --CONDI TIONS

L260 0 141.8 108.1 4.3 -. 1 .60 45S SMOOTHNESS. SHEFFIELD

LI 26 0 141.8 110.1 5.4 1.6 1.11 45S SMOOTHNESS. SHEFFIELD

L376 0 141.9 111.1 6.0 2.4 .90 45S SMOOTHNESS. SHEFFIELD

L587 0 142. 3 109.3 5.4 • 7 .88 45S SMOOTHNESS. SHEFFIELD

L281 0 142.5 106.4 4.0 -1.9 1.01 45S SMOOTHNESS. SHEFFIELD

L32 8 0 143.0 110.5 6.6 1.3 1.10 45S SMOOTHNESS. SHEFFIELD

LI 39S 0 143. 1 109.5 6.1 . 4 . 85 45S SMOOTHNESS. SHEFFIELD

L571 0 143. 3 111.3 7.4 1.8 1.07 45S SMOOTHNESS, SHEFFIELD

LI 14 0 144. 6 107.0 6.0 -2.5 1.24 45S SMOOTHNESS. SHEFFIELD

L342 0 144.7 110.3 7.9 • 2 1.02 45S SMOOTHNESS. SHEFFIELD

L554 0 144. 9 111*3 8.7 .9 1.01 45S SMOOTHNESS. SHEFFIELD

L35 2 0 145. 0 107.1 6.4 -2.7 1 .20 45S SMOOTHNESS, SHEFFIELD

LI 2 8 0 145.0 108.7 7.3 -1.3 .96 45S SMOOTHNESS, SHEFFIELD

LI 57 0 145. 3 104.9 5.4 -4.7 1.17 45 S SMOOTHNESS, SHEFFIELD

L100 0 1 45. 3 107.8 7.0 -2.2 1.00 45S SMOOTHNESS, SHEFFIELD

L275 X 145. 3 122.7 15.3 10.1 1 .07 45 S SMOOTHNESS. SHEFFIELD

LI 4 8 0 145.7 110.2 8.7 -.4 1.07 45S SMOOTHNESS. SHEFFIELD

LI 52 0 145.7 112.0 9.7 1 . 1 . 88 45S SMOOTHNESS. SHEFFIELD

LI 90R 0 145. 9 115.9 12.1 4.2 1.36 45S SMOOTHNESS. SHEFFIELD

L561 0 146. 0 105.7 6.5 -4.4 .90 45S SMOOTHNESS, SHEFFIELD

L2 31 0 146. 7 106.3 7.4 -4.2 1.31 45S SMOOTHNESS, SHEFFIELD

L224 0 147.7 117. 1 14.2 4.2 .96 45S SMOOTHNESS, SHEFFIELD

L25 9 0 148. 0 110.4 10.7 -1.6 1.08 45S SMOOTHNESS. SHEFFIELD

L60 0 0 148. 1 114.5 13.1 1.8 .88 45S SMOOTHNESS, SHEFFIELD

L575 0 150. 3 107.8 11.3 -5.0 1.18 45S SMOOTHNESS, SHEFFIELD

LI 53 « 150.5 118.3 17.2 3.6 .96 45S SMOOTHNESS, SHEFFIELD

LI 07 * 153.7 116.3 18.6 . 2 1.27 45S SMOOTHNESS, SHEFFIELD

LI 74 236.7 215. 1 142.5 36.5 .60 45 R SMOOTHNESS, SHEFFIELD, NON-STANDARD INSTRUMENT

GMEANS: 138. 2 105.8 1.00 95% ELLIPSE: 18.7 6.7 WITH GAMMA - 33 DEGREES

17
SHEFF.

UNITS

100

105

110

115

120

125

SMOOTHNESS, SHEFF I EFD

SAMPLE J 1 1 = 138. SHEFF. UNITS SAMPLE E36 = 106. SHEFF. UNITS

18
REPORT NO. E1G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T45-2 TABLE 1 SMOOTHNESS , BEKK SECONDS

TAPPI SUGGESTED METHOD T479 SU-71 , SMOOTHNESS OF PAPER (BEKK METHOD) SAMPLE PRINTING SAMPLE WRITINC TEST D. • 15 LAB ji i 102 GRAMS PER SQUARE METER E36 72 GRAMS PER SQUARE METER

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

L139B 37.4 6.5 2.04 4.8 1.01 52.3 9. 3 1.54 5.2 .97 45K O LI 39B

LI 62 27.9 -3. 0 -.95 3.1 .65 38.0 -5.0 -.84 2.9 .55 45K 0 LI 62

LI 76 32. 8 1.9 .59 8.9 1 . 89 34.5 -8.6 -1 .42 1 0.1 1.89 45K o H 76

LI 82K 28.0 -2.9 -.91 3.6 .77 46.0 3.0 .49 5.0 .94 45K 0 LI 82K L190C 32.3 1.4 .43 4.0 . 84 44.8 1.7 .29 4.0 .75 46K 0 L190C

L230B 33.3 2.4 .74 5. 5 1.17 51 .9 8.9 1.47 6.7 1.26 45K 0 L230B

L232B 27.1 -3.8 -1.20 2.2 . 46 37.2 -5.8 -.97 4.9 .91 45K o L232B

L243K 29.1 -1 .8 -.56 5.2 1.11 41 .9 -1.2 -.20 6.4 1.19 45K 0 L243K

L291K 31.7 .0 .24 S.6 1.19 44.5 1.5 .25 4.7 . 88 45K 0 L291 K L58

1

29. 5 -1.4 -.43 4. 3 .91 39.3 -3.7 -.62 3.6 .66 45K 0 L581

GR. MEAN - 30.9 BEKK SECONDS GRAND MEAN - 43.0 BEKK SECONDS TEST DETERMINATIONS - 15 SD MEANS - 3.2 BEKK SECONDS AVERAGE SDR

SD 0F MEANS -

• 4.7 BEKK SECONDS

6.0 BEKK SECONDS

AVERAGE SDR 5.4

10 LABS IN GRAND

BEKK SECONDS MEANS

L182G 61.7 30.8 9.67 4.4 .94 96.3 53.3 8.84 5.5 1 .02 45H * Ll 82G

L251 29.7 -1.2 -.37 3.8 .82 38.6 -4.4 -.74 5.0 .93 45L 1251 L38 8 330.9 300. 0 94.28 32. 5 6. 93 417.4 374.3 62.09 43.1 8.05 45H L368 TOTAL NUMBER OF LABORATORIES REPORTING • 13

Best Values: Jll 30 Bekk seconds

E36 43 Bekk seconds

REPORT NO. 51G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T45-2 TABLE 2 SMOOTHNESS . BEKK SECONDS

TAPPI SUGGESTED METHOD T479 SU-71, SMOOTHNESS OF PAPER (BEKK METHOD)

LAB MEANS COORDINATES AVG

CODE F ji i E36 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST INSTRUMENT- --CONDI TIONS

L232B 0 27.1 37.2 -6.8 1 • 5 .69 45 K SMOOTHNESS, BEKK

Ll 62 0 27.9 38.0 -5.8 1.0 .60 45 K SMOOTHNESS, BEKK

Ll 62K 0 28.0 46.0 1 .7 3.8 .85 45K SMOOTHNESS, BEKK L243K 0 29. 1 41 .

9

-1 .

7

1 .

2

1.15 45 K SMOOTHNESS, BEKK

L581 0 29.5 39.

3

-4.0 -.0 .79 45K SMOOTHNESS, BEKK

L251 29.7 38. 6 -4.6 -.5 .87 45 L SMOOTHNESS, BEKK, 20 C. 65% RB L291K 0 31.7 44.5 1.7 -.2 1 .03 45 K SMOOTHNESS, BEKK

Ll 90C 0 32. 3 44.

8

2.1 -.7 .79 45K SMOOTHNESS, BEKK

Ll 76 0 32.8 34. 5 -7.3 -4.8 1.89 45 K SMOOTHNESS, BEKK L230B 0 33.3 51.9 9.1 .9 1.21 45K SMOOTHNBSS, BEKK

Ll 39B 0 37.4 52.3 11.0 -2.6 .99 45 K SMOOTHNESS, BEKK L182G 61.7 96.3 60.7 -9.8 .98 45H SMOOTHNESS, GURLEY OIL FLOTATION

L3 8 8 330.9 417 .

4

456.6 -147.0 7.49 45H SMOOTHNESS, GURLEY OIL FL0TATI0N

GMEANS

:

30.9 43.0 1.00 95% ELLIPSE: 20.2 7.5 WITH GAMMA • 69 DEGREES

JANUARY 1978

19
BEKK

SECONDS

SMOOTHNESS BEKK

SAMPLE J 1 1 = 31 •

i i BEKK SECONDS SAMPLE E36 = 43J I I I l_ BEKK SECONDS

i i

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10 15 20 25 30 35

BEKK SECONDS

SAMPLE J 1

1

40 45 50 55

20
REPORT NO. FIG TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 19*78 ANALYSIS T47-1 TABLE 1 SMOOTHNESS, BFNDTSEN

SAMPLE PRINTING SAMPLE WRITI NG TEST D. • l o LAB J1 1 102 GRAMS PER SQUARE METER E 36 72 GRAMS PER SQUARE METFR

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

LI 00 164. 3. .20 15. • 87 99. -5. -.79 9. .89 47R 0 LI 00

L'l 76 164. 3. .24 14. .78 112. 8. 1.20 8. .76 47B O LI 76

LI 82

B

147. -14. -1.08 11. .62 112. 8. 1.19 10. 1 .00 47 B 0 LI 82

B

L236 144. -17. -1.34 9. .53 1 02. -2 . -.31 8. . 80 4 7 B 0 L236

L242 147. -14. -1.08 9. • 49 1 04. -1 . -.08 9. .89 4 7 B 0 L? 4 2 L243B 1 82. 20. 1.57 25. 1 . 44 101. -3. -.52 8. .78 4 7 B ft 1.2 43 B L244 158. -4. -.29 25. 1 . 46 99. -5. -.79 12. 1.15 47 B 0 L244

L24 8 162. 0. .03 22. 1.27 92. -12. 1.78 15. 1 .44 47R O 1.248 L280 182. 21. 1.60 32. 1.84 103. -2. -.23 16. 1 .56 4 7 B o L280

133 3 155. -6. -.50 18. 1 . 03 1 10. 6. .88 11 . 1 .07 4 7f) o 1,333

L484 170. 9. .66 12. . 66 112. 8. 1 .23 7. . 65 47 B o L4 04

GR. MEAN - 161 . ML/MI

N

GRAND MEAN - 1 04. ML/MIN TEST DETERMINATIONS • 10 SD MEANS • 13. ML/M I

N

SD OF MEANS • 7. ML/MIN 11 LABS IN GRAND MFANS

AVERAGE SDR - 17. ML /MIN AVERAGE SDR - 10. ML/MIN

TOTAL NUMBER OF LABORATORIES REPORTING - 11 Best Values: Jll 160 milliliter per minute

E36 100 milliliter per minute

REPORT NO. 5 1 G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T47-1 TABLE 2 SMOOTHNESS, BENDTSEN

LAB CODE F MEANS

Jll E36 COORDINATESMAJOR MINOR

AVG

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

L236 0 144. 102. -17. -4. .66 47 B SMOOTHNESS, BENDTSEN, WG 150 L242 0 147. 104. -14. -2. .69 47B SMOOTHNESS, BENDTSEN, WG 150

LI 82

B

0 147. 112. -1 5. 7. .81 4 7 B SMOOTHNESS, BENDTSEN. WG 150 L333 0 155. 110. -7. 5. 1.05 47 B SMOOTHNESS, BENDTSEN, WG 150 L244 0 158. 99. -3. -6. 1.30 47B SMOOTHNESS, BENDTSEN, WG 150

L2 4 8 0 162. 92. 1 . -12. 1 .36 47 B SMOOTHNESS, BENDTSEN, WG 1 50 L100 0 164. 99. 3. -5. . 88 47B SMOOTHNESS, BENDTSEN, WG 150 1176 0 164. 112. 2. 8. .77 47B SMOOTHNESS, BENDTSEN, WG 150 L484 0 170. 112. 8. 9. .66 47B SMOOTHNESS, BENDTSEN, WG 150 L24 3B 0 182. 101. 20. -2. 1.11 47 B SMOOTHNESS, BENDTSEN, wo 150 L280 0 182. 103. 21 . 0. 1.70 47 B SMOOTHNESS, BENDTSEN, WG 150 GHFANS: 161 . 95*

104. ELLIPSE: 40. 20. 1.00 WITH GAMMA • -5 DEGREES

21
ML/MIN 100

1

10

120

1

30

140

SMOOTHNESS , BENDTSEN

SAMPLE J 1 1 = 161 . ML/MIN SAMPLE E36 = 104. ML/MIN

I | | 1 1

y-) + , X , « NOT IN GRAND MEANS

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SAMPLE J 1

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0 120 130 140 150 160 170

ML/MIN

180 190 200 2

22
REPORT NO. 51

G

TAPP1 COLLABORATIVE REFERENCE PROGRAM ANALYSIS T56-1 TABLE 1 KAN INK ABSORPTION

JANUARY 1978

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 4 LAB E50 91 GRAMS PER SQUARE METER H80 84 GRAMS PER SQUARE METER

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

L 1 2 6 59. 5 -4.9 -1 .14 .3 . 53 61 .8 -3.2 -.81 . i • 21 56K 0 LI 26

LI 49 58.7 -5. 6 -1 .31 1.0 1.54 60.2 -4. 0 -1.22 .5 . 00 56K 0 LI 49

LI 02 67. 2 2.9 .67 .2 . 28 67.6 2.6 .66 .2 .29 56K 0 LIB?

L21 3 68.2 3. 9 .90 .9 1 . 49 70.8 5.0 1 .49 .0 1.25 56 K o L213

L277 67.5 3. 1 .72 . 6 .93 66.7 1.7 .45 . 5 .80 56K 0 L277

L27 8 68.4 4.1 .95 .5 . 73 66.6 1.6 .40 2.3 3.70 56K o I 2^8

L291 65.7 1.4 .32 1.1 1.69 66.3 1 .

3

. 34 . 3 .46 56K 0 1.291 L33 9 26.2 -38. 1 -8.87 .3 . 47 25.9 -39.1 10.04 .9 1 . 37 56 K » I 339

L388 59.7 -4.7 -1.10 . 5 . 80 59.9 -5. 1 -1 .31 . 3 • 48 56K 0 L308

GR. MEAN - 64.4 K A N UNITS GRAND MEAN 65.0 K A N UNITS TEST DETFBMTNATtONS • 4 SD MEANS - 4.3 K A N UNITS SD OF MEANS - 3.9 K A N UNITS 8 LABS IN GRAND MEANS

AVERAGE SDR - .6 TOTAL NUMBER OF LABORATORIES REPORTING - Best Values: E50 65 K & N units

H80 65 K & N units

KAN UNITS

9 AVERAGE SDR - . 6 K A N UNITS

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

REPORT NO. 51 G TAPP I COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T56-1 TABLE 2 KAN INK ABSORPTION

LAB MEANS COORDINATES AVG CODE F E50 H80 MAJOR MINOR R. SDR VAR PROPERTY— -TEST I NSTRUMENT- --CONDI TI ON

S

L339 * 26. 2 25.9 -54.5 -3.6 .92 56 K INK ABSORPTION, KAN INK TFST

LI 49 0 58. 7 60.2 -7.4 • 2 1.17 56K INK ABSORPTION, KAN INK TEST

LI 26 0 59.5 61 .

8

-5.8 .9 .37 56 K INK ABSORPTION, KAN INK TEST L388 o 59.7 59.9 -6.9 -.6 .64 56 K INK ABSORPTION. KAN INK TEST

L29

1

0 65. 7 66.3 1 .9 • 1 1.08 56 K INK ABSORPTION. KAN INK TEST

LI 82 0 67.2 67, 6 3.9 .0 .29 56 K INK ABSORPTION, KAN INK TEST

L277 0 67. 5 66.7 3.5 -.8 .87 56K INK ABSORPTION, KAN INK TEST

L21 3 0 68. 2 70.0 6.8 1 .7 1.37 56 K INK ABSORPTION, KAN INK TEST

L278 0 68.4 66.6 4.1 -1.6 2.21 56 K INK ABSORPTION, KAN INK TFST GMEANS: 64.4 65. 0 1 .00 95% ELLIPSE: 19.0 3.6 WITH GAMMA - 42 DEGREES

23
REPORT NO. 51 G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 19*8 ANALYSIS T57-1 TABLE 1 HYDROGEN ION CONCENTRATION (PH), COLD

TAPPI STANDARD T509 OS-77

SAMPT F PRINTING SAMPLE printing TEST D. 5 LAB J13 89 GRAMS PER SQUARE METER HI 7 69 GRAMS PER SQUARE METER

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

LI 74C 8. 180 .909 1 .45 . 084 1 . 06 5.040 .362 1 . 36 . 055 .94 57F O LI 74C

LI 82

C

7.456 .185 .30 . 087 1.10 4. 800 • 122 .46 .000 . 00 5 7 D O LI 82C L251C 6.192 -1.079 1.72 . 050 .63 4.828 .150 .56 . 01 9 .33 57P 0 L251C

L32 8 7. 320 . 049 .08 . 057 . 72 4. 270 -.408 1 .54 . 045 . 77 57M 0 L328

L356 7.306 .035 .06 . 148 1.87 4.488 -.190 -.72 .177 3.03 57V 0 L356

L442 7.621 .351 .56 . 083 1.05 4. 502 -.176 -.6^ . 069 1.18 570 o L4 49

I 484A 6.820 -.451 -.72 . 045 . 57 4.820 .142 .53 . 045 .77 57Y 0 1.4 84 A

GR. MEAN ’ 7.271 PH UNITS GRAND MEAN • 4.678 PH UNITS TEST DETERMINATIONS - 5 SD MEANS - . 626 PH UNITS SD OF MEANS - .265 PH UNITS 7 LABS IN GRAND MF ANS AVERAGE SDR “

. 079 PH UNITS AVERAGE SDR •

. 058 PH UNITS TOTAL NUMBER OF LABORATORIES REPORTING - 7

Best Values: J13 7.3 pH units

J17 4.7 pH units

REPORT NO. 5 1 G TAPPI COLLABORATI VE REFERENCE PROGRAM JANUARY 1 9 7 0 ANALYSIS T57-1 TABLE 2 HYDROGEN ION CONCENTRATION (PH), COLD

TAPPI STANDARD T509 OS-77

LAB MEANS COORDINATES AVG

CODE F J 1 3 HI 7 MAJOR MINOR R. SDR VAR PROPERTY— -TEST I NSTRUMENT- - -CONDI TI ONS L251C 0 6.192 4.828 -1 .076 .171 .48 57P PH, COLD, RADIOMETER TYPE PH M64 L484A 0 6.820 4. 820 -.448 .150 . 67 57 Y PH, COLD, BECKMAN MODEL H2 L356 0 7 .306 4.488 .032 -. 191 2. 45 57V PH, COLD, BECKMAN EXPANDOMATIC

L32 8 0 7.320 4.270 . 041 - . 409 .74 57 M PH, COLD, BECKMAN ZEROMATIC

L182C 0 7.456 4. 800 • 1 86 .118 .55 57D PH, COLD. RADIOMETER TYPE PH M 28 L442 0 7.621 4.502 .347 -.183 1.12 570 PH, COLD, ORION DIGITAL IONALYZER

LI 74C 0 8. 180 5.040 .916 • 344 1 .00 57F PH, COLD, FISHER ACCUMFT MODEL 220

GME ANS

:

7.271 4.678 1.00 95% ELLIPSE: 2.335 • 988 WITH GAMMA -

1 DEGREES

24
REPORT NO. 5 1 G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T57-2 TABLE 1 HYDROGEN ION CONCENTRATION (PH), HOT

TAPPI STANDARD T435 OS-77

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 5 LAB J1 3 89 GRAMS PER SQUARE METER Hi 7 89 GRAMS PER SQUARF METER

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

LI 28 7. 780 .008 .02 . 027 . 31 4.200 -.280 1.17 . 000 .00 57L 8 LJ *8

LI 31 7. 060 -.712 -1.59 .207 2. 38 4.500 . 020 . 08 .071 1 .32 57L a LI 31

L 1 62 8.404 .632 1.41 . 061 • 70 4.480 . 000 .00 . 07C 1 .48 57C a LI 62

LI 74 H 8. 040 .268 .60 . 055 . 63 4.900 .420 1 .75 .071 1 .32 570 6 LI 74

H

LI 82

H

7. 71 0 -.062 -.14 . 082 . 94 4.300 -.180 -.75 . 000 .00 5 7 F M LI 8?H L334 8.902 1.130 2.53 . 648 7.45 5.966 1 .486 6.19 . 304 5.69 57C * 1334 L484B 7.640 -.132 -.30 . 089 1 . 03 4.500 . 020 .08 .100 1 .87 57Z. a L4P4B

GR. MEAN - 7.772 PH UNITS GRAND MEAN - 4.480 PH UNITS TEST DETERMINATIONS • 5 SD MEANS . 447 PH UNITS SD OF MEANS • .240 PH UNITS 6 LABS IN GRAND MF AN S AVERAGE SDR •

. 087 PH UNITS AVERAGE SDR -

. 053 PH UNITS

TOTAL NUMBER OF LABORATORIES REPORTING 7 Best Values: J13 7.8 pH units

J17 4.4 pH units

The following laboratories were omitted from the grand means because of extreme test results: 334.

REPORT NO. 5 1 G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY I <578 ANALYSIS TS7-2 TABLE 2 HYDROGEN ION CONCENTRATION (PH), HOT TAPPI STANDARD T435 OS-77

LAB C0DE F MEANS

J13 HI 7 CeGRDINATESMAJGR M IN0R AVGR. SDR VAR P RaPE RTY-- -TE ST I NSTRUMENT---C0NDI TI0NS

LI 31 a 7.060 4.500 -.702 • 121 1 . 85 57L PH, H0T, L*N L484B a 7.640 *.500 -.1 28 .0 39 1.45 57Z PH, H0T , BECKMAN MGDEL H2

LI 82 H a 7.710 4.300 -. 087 -.169 .47 57E PH, HaT, RADiaMETER TYPE PH M 28

Li 2 8 a 7.780 4.200 -.032 -.278 . 1 6 57L PH, H0T , L N

LI 7 4 H a 8.040 4.900 .325 . 378 .98 57G PH , HaT, FISHER ACCUMFT M0DE L 220 U 62 a 8.404 4.480 .625 -. 090 1 . 09 57C PH, HaT, C0RNING MODEL 12 RESEARCH METER

L3 3 4 u 8.902 5.966 1 . 330 1.310 6.57 57C PH, neT, CORNING MODEL 12 RESEARCH METER GMEANS

:

’’.77? 95% 4.480

ELLIPSE: 1.877 .973

1.00 WITH GAMMA • 8 DEGREES

25
REPtfRT NG. 51G TAPPI C6LLAB0RATI VE REFERENCE PROGRAM JANUARY J 976 ANALYSIS T60-I TABLE 1 OPACITY (69% REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 0S-75, OPACITY OF PAPER (15 DEG. /D IFFUSE , ILLUMINANT A) - B*L TYPF

LAB SAMPLE

H29 77 GRAMS PRINTING

PER SQUARE METER

SAMPLE E50 91 GRAMS PRINTING

PER SQUARE METER TEST r. - ! 0

C0DE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F I AB

LI 05 93.99 -.66 -1 . 50 .14 • 51 92.54 .19 .26 • 40 .76 6CW 8 L 1 05

LI 08 94.26 -.39 -.88 .93 3. 46 92.47 • 12 .17 . 32 .60 60 B 0 LI 08

LI 1 5 94.86 .21 .48 . 30 1.12 91 .92 -.43 -.60 .52 1 .00 6C B 0 LI 15

LI 1 8 94.84 .19 .43 .23 . 84 92.76 .41 .56 .43 . 82 60 B 0 LI 1 8 LI 21 94 .81 .16 . 36 .15 .57 92.80 .45 .62 .45 .36 6 0 B 0 LI 21

LI 2 2 94.53 -.12 -.27 .21 . 76 92.62 .27 # 3** .41 . 78 6 0 D 0 T.l 2?

LI 2 3 94.31 -.34 -.77 .28 1.03 92.70 .35 .48 .65 1 .73 60W r. L! 23

LI 24 94.16 -.49 -1.12 .21 • 77 92.41 .06 .08 .58 1.10 60H 0 LI 24

LI 2 5 93.25 -1.40 -3.19 .29 1 . 07 91 .90 - .45 -.62 .65 1 .23 6 OH X LI 25

LI 31 94.00 -.65 -1 . 48 .00 . 00 92.10 -.25 - .35 .32 .60 60K 0 LI 31

LI 2 2 94.13 -.52 -1.18 .18 .66 91.85 -.50 -.69 .42 .91 6 OB O LI 32

L 1 3 4 94.72 . 07 . 16 .25 .94 93.37 1 .02 1 .41 .38 .73 6 0 B 0 LI 34

LI 3 6 94.66 .01 .02 .15 . 56 92.64 .29 .40 .48 .92 60R 0 LI **

LI 3 9 94. 38 -.27 -.61 .23 .85 92.63 .28 . 38 .57 1 . 09 6 0 B 0 LI 39

LI 4 8H 93.94 -.71 -1.62 .18 . 66 91 .76 -.59 -.82 .40 .76 f OH 0 1.1 4RH

LI 50 95.00 . 35 . 80 .24 . 87 92.80 .45 .62 .63 1 .20 6 OB 0 LI 50

LI 52 94.68 . 03 . 07 .20 • 74 92.86 .51 .70 • 32 .62 6 0 B 0 LI 52

LI 53 93.45 -1.20 -2.73 .44 1 . 62 91 .30 -1 . 05 -1 .45 .54 1 • 02 6 0 B « LI 53

LI 58 95.30 . 65 1.48 .33 1.22 93.75 1 .40 1 .93 .49 .92 6CD 0 LI 58

LI 59 94.91 . 26 .59 .10 . 37 92.95 .60 .83 . 35 .67 60R 0 LI 59

LI 62 94 . 89 .24 .55 .31 1.14 92.90 .55 .76 .41 . 78 eow 0 LI 6?

LI 66 94. 28 -.37 - . 84 .43 1 . 60 92.42 .07 . 09 .37 .71 60 B 0 LI 6 6

LI 7 3

A

93.91 -.74 -1 .68 .17 . 64 91.17 -1.18 -1.63 .19 .37 6 0 B 0 LI 73A

LI 82 95.05 . 40 .91 .28 1 . 05 91 .80 -.55 -.76 .95 1 . 80 60B 0 1.1 8?

LI 83 95.35 .70 1.59 .23 • 84 93.03 .68 .94 .38 .72 6 OB 0 1 1 83

L190C 94 . 89 • 24 .55 .15 .57 92.64 . 29 .40 .60 1.15 60B 0 LI 90C

LI 90R 94.Q2 . 1 7 . 39 .17 . 63 92.18 -.17 -.24 .66 1 .26 6 0 B 0 1.1 90R L206 94 .97 . 32 . 73 . 32 1 . 20 91 .91 - .44 -.61 .64 1 .22 60B 0 L2C6

L21 OB 94.75 . 1 0 .23 .18 . 68 93.20 .85 1.17 .33 .62 60 B 0 L21 OB

L2 1 0 D 94.86 • 21 .48 • 21 . 79 93.31 .96 1 . 32 . 40 . 76 60P 0 L21 OD

L21 1 S 95.08 .43 .98 .19 . 69 92.09 -.26 -. 36 .43 .82 6 OR 0 I ?1 IS 121 2 94.7 0 . 05 . 1 1 .26 . 96 92.40 . 05 . 07 . 70 1 .33 6 OB 0 L212

L21 3 95.00 .35 . 80 .28 1 . 05 92.89 .54 .74 .46 .87 60 B 0 L? 1 3 L223B 94.72 . 07 .16 .23 . 87 92 • 99 .64 .88 .63 1.19 60 B 0 L223B

L22 5 95.40 • 75 1.71 .61 2.28 92.75 .40 . 55 .35 .67 6 0 B 0 L??5

L226B 95.16 .51 1.16 .45 1 . 68 93. 10 . 76 1.03 .43 . 83 6 OB 0 L226B

L22 8 94.72 . 07 .16 .27 1 . 00 92.70 .35 . 48 .47 .90 6 C H e L 228 L233B 94.10 -. 55 -1.25 .32 1.17 92.25 -.10 -.14 .63 1 .21 6 OB 0 L 2 33 R L236B 94.27 -.38 -.87 . 35 1 • 28 90.52 • CD -2.54 .79 1 .50 60 B » L236B

L2 3 8A 94.10 -.55 -1.25 .07 . 25 91 .22 -1.13 -1 .56 .51 .98 6 0 R 0 L? 38 A

L241 95.02 .37 . 84 .29 1 • 06 92.23 -.1 2 -.17 .71 1 . “*6 6 OB 0 L241 L24 3 94.58 -.07 -.16 • 14 . 52 91.85 -.50 -.69 .66 1 .25 6 OB 0 1243

L254 94.94 .29 .66 .17 . 64 91 .97 -.38 -.53 .72 1 .36 6 OH 0 L 2 54 L255 94.4 1 -.24 -.55 .35 1 .31 91.29 -1.06 -1.47 .65 1 .23 6 OB 0 L255 L259 94.64 -.01 -.02 .45 1 . 68 91 .20 -1.15 -1 .59 .70 1 .33 6 0 B 0 L2 59

L261 94 .95 . 30 .68 • 18 .69 92.60 .25 . 34 .56 1 • 06 6 OB 0 L261

L262 94.80 . 15 . 34 . 1 4 . £2 91 .97 -.38 -.53 .25 .47 6 OP 0 T.262 L275 94.62 -.03 -.07 .13 . 49 92.00 - .35 -.49 .17 .32 60 R 0 L275

L2 7 8 94 . 50 -.15 -.34 .23 . 86 91 .91 - .44 -.61 .85 1 .62 60B 0 L278

L281 94.71 . 06 . 14 .15 . 5 T 92.12 -.23 -.32 . 58 1.11 6 OP 0 1.281 L285B 94.0 1 -.64 -1.46 .30 1.11 90.74 -1.61 -2.23 .53 1 .01 60B 0 L2B5B

L285R 94 .09 -.56 -1 .27 .38 1 .43 90.69 -1.66 -2.30 .67 1 .27 6 OR 0 L285R

L268 94.63 -.02 -.05 .22 . 80 91.57 -.78 -1.08 .69 1 .31 60P 0 L2 80 L30

1

94.53 -.12 -.27 .19 . 70 91 . 17 -1.18 -1.63 .81 1 .54 6 0 B 0 L3C*1 L305 94.61 . 1 6 .36 .16 . 59 91.91 -.44 -.61 .39 . 75 6 OR * L305

L30 8 94.93 .26 .64 .27 1 .01 92.42 .07 .09 .66 1 .25 60 H 0 L308

L31 5 94.9 2 .27 .61 .22 . 82 92.02 -.33 - . 46 . 6? 1.16 60 P 0 L315

L3 1 7 94.93 .28 .64 .36 1 . 34 92.09 -.26 -.36 .62 1.17 60 B 0 L 3 1 7 L31 8 94.45 -.20 -.46 • 44 1 . 62 92.00 -.35 -.49 .75 1 .42 6 0 B 0 L31 8 L32 3 95.53 .88 2.00 .19 . 70 93.26 .91 1 .26 .76 1 .45 6 0 W 0 L3 23 L32 6 95.48 • 83 1 . 89 . 28 1 . 03 92 . 84 .49 .67 .64 1 .23 6 OB 0 L" 6 L3 2 8 94.80 . 15 . 34 .92 3.41 93.40 1 .05 1 .45 .97 1 . 84 60B 0 L 9 L3 3 3 94.90 . 25 . 57 . 32 1.17 92.50 .15 .20 .53 1 . 00 60 B 0 L? 33 L3 3 9 94.60 -.05 -.11 .52 1 . 92 92.05 -.30 -.42 .50 .95 6 0 B 0 L339

L341 93.68 -.97 -2.21 • 1 8 • 67 91 .49 -.86 -1.19 . 39 .74 60 R 0 L3 4 1 26
REPORT N0. 5 I G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T60-1 TABLE 1 OPACITY <89% REPLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75, OPACITY OF PAPER <15 DEG. /DI FFUSE , ILLUMINANT A) - BAL TYPE SAMPLE PRINTING SAMPLE PRINTING TEST D. 1 0 LAB H29 77 GRAMS PER SQUARE METER E50 91 GRAMS PER SQUARE METER

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

L352 93.93 -.72 -1 .64 .11 • 39 92.25 -.10 -.14 .22 .41 60R 0 L352

L354 94.0 0 -.65 -1.48 .00 .00 91 . 50 8S -1.18 .53 1 . 00 6 OB ti L354 L366 95.16 .51 1 .16 .36 1 . 35 93.54 1.19 1.64 .74 1 .40 60 B 0 L366

L378 94.97 .32 .73 . 31 1.13 92.91 .56 .77 .60 1.15 60 D o L378

L39 0 94.57 -.08 -.18 .30 1.12 92.32 -.03 -.04 .60 1.14 60 B 0 L390

L523 94.67 .02 .05 .13 . 46 92.45 .10 .14 .18 • 34 6 OR fl L523

L54 3 94.0 6 -.59 -1 . 34 .13 .47 92.19 -.16 -.22 .51 .97 6 0 D 0 L543

L561 94.50 -.15 -.34 .53 1 . 95 92.00 -.35 -.49 .47 .90 60B 0 L561 L57 3 94.98 .33 .75 .26 .97 93.26 .91 1.26 .47 .89 60H 0 L57?

L581 94.84 .19 .43 .22 . 81 93. 01 .66 .91 .48 .91 6 0 B 0 L581

L587 94.83 . 1 8 .41 .20 • 74 92.09 -.26 -.36 .57 1 .09 6 OB 0 L587

L59 4 94.4 6 -.19 -.43 .22 . 81 92.21 — . 1 A -.20 .31 .59 6 OD 0 L594

L597 94.9 0 .25 • 57 .7A 2. 74 92.90 . 55 .76 .57 1 • 08 6 0 B € L697

L599 94.55 -.10 -.23 . A A 1.62 93.70 1 .35 1 .86 1 .50 6 0 B * L599

L6 0 8 95.68 1.03 2.34 .19 . 72 94.04 1.69 2.33 .39 . 75 6 0 D * L608

GR. MEAN • 94.65 PERCENT GRAND MEAN • 92.35 PERCENT TEST DETERMINATIONS • 10

SD MEANS - .44 PERCENT SD 0F MEANS .72 PERCFNT 78 LABS IN GRAND MEANS

AVERAGE SDR • .27 PERCENT AVERAGE SDR - .53 PERCENT

L100 94.92 .27 • 61 .15 .55 92.47 • 12 .16 .45 .85 60E LI 00 L224 94.88 . 23 .52 .76 2. 60 92.32 -.03 -.04 .51 .96 60 P • L224

L232 95.35 .70 1 . 59 .41 1.53 92.40 .05 • 07 .46 .87 60P L2 32 L236E 96.37 1.72 3.93 • 10 . 38 93.72 1 .37 1 .89 .29 .55 6 OF L2 36F L249 94.91 . 26 .59 .23 . 86 92.12 -.23 -. 32 .36 .69 60 P L249

L25 6 97.71 3. 06 6.96 .10 . 38 95.23 2.88 3.99 .59 1.11 eoN L256

L26 0 95.00 . 35 • 80 .12 . 46 91 .63 -.72 -1 . 00 .71 1 .35 6 OP L260

L309 94.59 -. 06 -.14 • 14 • 54 90.72 -1 .67 -2.26 .38 .73 60 A L309

L31 2 94.35 -.30 -.68 .34 1.25 90.35 -2.00 -2.77 .41 .78 60 P L312

L31 4 95.32 . 67 1 . 52 .15 . 57 92.86 .51 .70 .54 1 . 02 6 OT L3 1 4

L38 0 94.90 .25 .57 • 21 . 78 92.00 -.35 -.49 .00 . 00 60P L380 L388 94.45 -.20 -.46 .37 1 . 37 92. 10 -.25 -.35 .61 1.17 60P L388

TOTAL NUMBER OF LABORATORIES REPORTING - 92

Best Values: H29 94.6 + 0.7 percent

E50 92.3 + 1.0 percent

Data from the following laboratories were received

too late for proper processing and inclusion in the grand means: 305.

27
REPORT N0. 51 G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T60-1 TABLE 2 OPACITY (89% REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75, OPACITY OF PAPER (15 DEG . /DIFFUSE , ILLUM I N ANT A) - B1L TYPE

LAB MEANS COORDINATES AVG

CODE F H29 F50 MAJOR MINOR R. SDR VAR PROPERTY-- -TEST INSTRUMENT---CONDI TIONS

LI 25 X 93.25 91.90 -1 . 00 1 . 08 1.15 60H OPACITY ( white BACKING ‘ * HUYGEN

LI 53 * 93.45 91 .30 -1.46 .65 1 .32 60B OPACITY ( WHITE BACKING ' » BAUSCH LOMB

L341 0 93.68 91 . 49 -1.19 .52 .71 60 R OPACITY ( WHITE BACKING * • TEWING- ALBERT ( FORMERLY SRL ) LI 73A 0 93.91 91.17 -1.38 .18 .51 60B OPACITY ( WHITE BACKING ' * BAUSCH LOMB

L352 0 93.93 92.25 39 .61 .40 60 R OPACITY ( WHITE BACKING ' • THWING-ALBERT ( FORMERLY SRL )

LI 48H 0 93.94 91 .76 -.83 .40 .71 60H OPACITY (WHITE BACKING * * HUYGEN

LI 05 0 93.99 92.54 -.11 .68 . 64 60 W OPACITY ( WHITE BACKING * • HUYGEN, DIGITAL

L354 0 94.00 91 . 50 -1.05 . 23 .50 60B OPACITY ( WHITE BACKING * * BAUSCH LOMB

LI 31 0 94.00 92.10 -.50 . 48 .30 60 R OPACITY ( WHI TF. BACKING ' * THWING-ALBERT ( FORMERLY SRL ) L285B 0 94.01 90.74 -1.73 -.09 1.06 60B OPACITY ( WHITE BACKING ' * BAUSCH LOMB

L54 3 o 94.06 92.19 -. 39 • 47 .72 60D OPACITY ( WHITE BACKING ‘ * DIANO/BNL

L2 85R 0 94.09 90.69 -1.74 -.19 1.35 60 R OPACITY ( WHITE BACKING ‘ » THWING-ALBERT ( FORMERLY SRI. ) L238A 0 94.10 91 .22 -1.26 .03 . 61 60 R OPACITY ( WHITE BACKING " * THWING-ALBERT ( FORMERLY SRL ) L233B 0 94.10 92. 25 -. 32 . 46 1 .19 60B OPACITY ( WHITE BACKING * » BAUSCH LOMB

LI 3 2 0 94. 1 3 91 .85 -.67 . 26 .73 60B OPACITY ( WHITE BACKING " » BAUSCH LOMB

LI 2

4

0 94.16 92.41 -.15 . 47 .93 60 B OPACITY ( WHITE BACKING * * BAUSCH LOMB

LI 0 8 0 94.26 92.47 -.05 . 40 2.03 60B OPACITY ( WHITE BACKING * • BAUSCH LOMB

L236B * 94.27 90.52 -l . 83 -.42 1.39 60 B OPACITY ( WHITE BACKING * * BAUSCH LOMB

LI 6 6 0 94.28 92.42 -.09 .36 1.15 60B OPACITY ( WHITE BACKING BAUSCH LOMB

LI 23 0 94.31 92.70 . 17 .45 1.13 60 V OPACITY ( WHITE BACKING * • HUYGEN, DIGITAL

L31 2 94.35 90.35 -1 . 94 -.57 1 • 02 60 P OPACITY ( white BACKING ) • PHOTOVOLT

LI 3 9 0 94.38 92.63 . 14 .36 .97 60B OPACITY ( WHITE BACKING " * BAUSCH LOMB

L255 0 94.41 91 . 29 -1 . 06 -.23 1.27 60B OPACITY (WHITE BACKING BAUSCH LOMB

L388 94.45 92. 1 0 -.31 .08 1.27 60P OPACITY ( WHITE BACKING P40T0V0LT

L31 8 0 94.45 92.00 -.40 . 03 1 . 52 6 OB OPACITY ( WHITE BACKING P.AUSCH LOMB

L594 o 94.46 92.21 -.21 .11 .70 60D OPACITY ( WHITE BACKING DIANO/BNL

L278 0 94.50 91.91 -. 46 -.05 1.24 60B OPACITY ( WHITE BACKING BAUSCH LOMB

L5 61 fl 94.50 92. 00 -.38 -.01 1.43 60B OPACITY ( WHITE BACKING BAUSCH LOMB

LI 2 2 0 94.53 92.62 . 19 • 22 • 77 60D OPACITY ( WHITE BACKING DIANO/BNL

L3 01 0 94.53 91.17 -1.12 - . 39 1.12 60 B OPACITY (WHITE BACKING BAUSCH LOMB

L599 * 94.55 93. 70 1.18 .66 1 .56 6 OB OPACITY (WHITE BACKING BAUSCH LOMB

L39 0 0 94.57 92. 32 -.06 . 06 1.13 60B OPACITY ( whtte BACKING BAUSCH LOMB

L243 e 94.58 91 . 85 -.49 -.15 .89 60B OPACITY ( WHITE BACKING BAUSCH LOMB

L309 94.59 90.72 -1 . 51 -.63 .63 60 A OPACITY ( WHITE BACKING ZEISS ELREPHO, FILTER 4, 86% BACKING

L339 0 94.60 92.05 -. 30 -.08 1.43 60 B OPACITY ( WHI TF BACKING BAUSCH LOMB

L275 0 94.62 92. 00 -.33 -.12 .41 60R OPACITY ( WHTTE BACKING THWI NG-ALBERT ( FORMERLY SRI. > L288 0 94.63 91 .57 -.72 -.31 1 • 06 60 D OPACITY ( WHITE BACKING DIANO/BNL

L259 0 94.64 91 .20 -1 . 05 - . 47 1 .50 60 B OPACITY ( WHITE BACKING BAUSCH LOMB

LI 36 0 94.66 92.64 .27 • 1 1 .74 60 H OPACITY (WHITE BACKING HUYGEN

L523 0 94.67 92. 45 . 1 0 .02 .40 60 R OPACITY ( WHITE BACKING THWT NG-ALBF RT ( FORMERLY SRL )

LI 52 fl 94.68 92.86 .47 .19 .68 60 B OPACITY (WHITE BACKING BAUSCH LOMB

L21 2 o 94.70 92. 40 . 06 -.03 1.14 60B OPACITY (WHITE BACKING BAUSCH LOMB

L2 81 0 94.71 92.1 2 -. 19 -.15 . 84 60D OPACITY ( WHITE BACKING DIANO/BNL

L223B 0 94.72 92.99 .61 . 20 1 .03 60 B OPACITY ( WHITE BACKING PAUSCH LOMB

L228 o 94.72 92.70 .35 .08 .95 60H OPACITY ( WHITF BACKING HUYGEN

L 1 3 4 0 94.72 93.37 .95 . 36 .83 60B OPACITY ( WHITE BACKING BAUSCH LOMB

L21 OB o 94.75 93.20 . 81 . 26 . 65 60B OPACITY ( WHITE BACKING BAUSCH LOMB

L2 6 2 0 94.80 91 . 97 -.28 -.30 .50 6 OR OPACITY ( WHI TE BACKING THWI NG- ALBERT ( FORMERLY SRL ) L228 0 94.80 93. 40 1 . 01 . 30 2.62 60B OPACITY ( WHI TF BACKING BAUSCH LOMB

LI 21 0 94.81 92. 80 . 47 . 04 .72 60 B OPAC ITY (WHITE BACKING BAUSCH LOMB

L305 ft 94.81 91.91 -.33 -.33 .67 60 R OPACITY ( WHITE BACKING THWING-ALBERT ( FORMERLY SRL ) LI 9 OR 0 94.82 92.18 -.08 -.23 .95 60 B OPACITY ( WHITE BACKING BAUSCH LOMB

L58 7 0 94. 83 92 .09 -.16 -.27 . 92 60B OPACITY ( WHITE BACKING BAUSCH LOMB

LI 1 8 0 94.84 92.76 .45 -.00 .83 60 B OPACITY ( WHITE BACKING BAUSCH LOMB

158 1 o 94. 84 93.01 .68 • 1 0 .86 60 B OPACITY ( WHITE BACKING BAUSCH LOMB

L21 OD 0 94.86 93.31 .96 • 21 .77 60D OPACITY (WHITE BACKING DIANO/BNL

LI 1 5 0 94.86 91 .92 -.30 -. 37 1 . 06 60 B OPACITY (WHITF BACK INC PAUSCH LOMB

L22 4 94.88 92.32 . 07 -.22 1 . 88 60P OPACITY ( WHITE BACKING PHOTOVOLT

LI 62 o 94.89 92.90 . 60 .01 .96 60W OPACITY ( WHITF BACKING HUYGEN, DIGITAL

LI 9 0C 0 94.89 92. 64 . 36 -.10 .86 60B OPACITY ( WHITE BACKING ‘ • BAUSCH LOMB

L38 0 94.90 92. 00 -.21 -.37 . 39 60 P OPACITY (WHITE BACKING * * PHOTOVOLT

L597 0 94.90 92.90 . 60 . 00 1.91 60 B OPACITY ( WHITE BACKING ' • BAUSCH LOMB

L33 3 0 94.90 92.50 • 24 -.16 1 . 09 60B OPACITY ( WHITE BACKING ‘ * BAUSCH LOMB

L2 4 9 94.91 92. 1 2 -.10 -.33 . 78 60P OPACITY ( WHITE BACKING ‘ • PHOTOVOLT

LI 59 o 94.91 92.95 . 65 • 01 . 52 60R OPACITY ( WHITE BACKING * • THWING-ALBERT FORMERLY SRL )

28
HE PORT NO. SIC TAPP I COLLABORATIVE REFERENCE PROGRAM JANUARY 1578 ANALYSIS T60-1 TABLE 2 OPACITY (89* REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75, OPACITY OF PAPER (15 DEG . /D I FFUSE , ILLUMINANT A) - B*L TYPE

LAB CODE F MEANS

H29 E50 C00RDINATES

MAJ0R MINOR

AVG

R. SDR VAR PR0PERTY— -TEST I NSTRUME NT ---CONDI TI0NS

LI 0 0 94.92 92.47 .22 -.20 .70 60E 0PACITY ( WHITE BACKING ZEISS ELPEPHO, FMY-C(10> FIL* L31 5 0 94.92 92.02 -.19 -.38 .99 60 D OPACITY ( WHITE BACKING ). DT ANO/BNL

L30 8 0 94.93 92.42 .18 -.23 1.13 60H OPACITY ( WHITE BACKING >, HUYGEN

L317 0 94.93 92.09 -. 12 -.36 1.26 60B OPACITY (WHITE BACKING >. BAUSCH LOMB

L254 0 94.94 91.97 -.23 -.42 1.00 60H OPACITY ( WHITE BACKING HUYGEN

L2 61 0 94.95 92. 60 .35 -.17 .87 60 B OPACITY ( WHITE BACKING >, BAUSCH LOMB

L378 0 94.97 92.91 .64 -.06 1.14 60D OPACITY ( WHITE BACKING ). DI ANO/BNL

L206 0 94.97 91.91 -.27 -.48 1.21 60 B OPACITY ( WHITE BACKING >, BAUSCH LOMB

L573 0 94.98 93. 26 .96 . 08 .93 60H OPACITY ( WHITE BACKING HUYGEN

L2 6 0 95.0 0 91.63 -.51 -.62 .91 60P OPACITY (WHITE BACKING PHOTOVOLT

LI 50 0 95.00 92. 80 .55 -.13 1 . 04 60 B OPACITY ( WHITE BACKING BAUSCH LOMB

L21 3 0 95.00 92.89 . 64 - . 09 .96 60B OPACITY ( WHITE BACKING BAUSCH LOMB

L2 41 0 95.02 92.23 .04 -.39 1.21 60B OPACITY ( WHITE BACKING BAUSCH LOMB

LI 82 0 95.05 91 .80 -.33 -.59 1.43 60B OPACITY ( WHITE BACKING BAUSCH LOMB

L21 IS 0 95.08 92.09 -.06 -.50 .76 60R OPACITY (WHITE BACKING THWING-ALBERT (FORMERLY SRL ) L226B 0 95.16 93. 10 .89 -.15 1 .25 60 B OPACITY ( WHITE BACKING BAUSCH LOMB

L36 6 0 95.16 93.54 1.29 . 03 1.37 60 B OPACITY ( WHITE BACKING BAUSCH LOMB

LI 58 0 95.30 93.75 1 . 54 -.00 1 . 07 60D OPACITY (WHITE BACKING DI ANO/BNL

L314 95.32 92.86 .74 -.40 .80 60T OPACITY ( WHITE BACKING SMALL SPHERE COLOR EYE

LI 83 0 95.35 93.03 .91 -.35 • 78 60 B OPACITY ( WHITE BACKING BAUSCH LOMB

L232 95.35 92.40 .34 -.62 1 .20 60 P OPACITY ( white BACKING PHOTOVOLT

L225 0 95.40 92.75 . 68 -.51 1.48 60B OPACITY ( WHITE BACKING >. BAUSCH LOMB

L326 0 95.48 92.84 . 79 -.55 1.13 60B OPACITY ( WHITE BACKING ). BAUSCH LOMB

L32 3 0 95.53 93.26 1 . 19 - • 42 1 • 08 60 W OPACITY ( WHITE BACKING >, HUYGEN. DIGITAL

1.608 » 95.68 94.04 1.96 -.23 .73 60D OPACITY ( WHITE BACKING >, DI ANO/BNL

L236F 96.^7 93.72 1.96 -.99 .46 60E OPACITY ( WHITE BACKING >, ZEISS FLREPRO, FMY-C(10> Fill L256 97.71 95.23 3.90 -1.57 .75 60 N OPACITY ( WHITE BACKING ), HUNTER

GMF ANS

:

94.65 92.35

95% ELLIPSE: 1.97 .81

1 .00 WITH GAMMA - 65 DEGRFFS

29
PERCENT

OPACITY, B£L TYPE, 89X BACKING

SAMPLE H29 = 94.7 PERCENT SAMPLE E50 = 92-4 PERCENT

PERCENT

30
REPORT NO. JANUARY 1976 5 1

G

TAPPI COLLA BO RATI VE REFERENCE PROGRAM ANALYSIS T60-2 TABLE 1 OPACITY (PAPER BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75. OPACITY OF PAPER (15 DEG. /DI FFUSE , ILLUMTNANT A) - BAL TYPE

SAMPLE PRINTING SAMPLE PRINTING TFST D. 1 o LAB H29 77 GRAMS PER SQUARE METER E50 91 GRAMS PER SQUARE METER

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

LI 15 95.92 -.22 -.39 .27 1 • 24 93. 50 .24 .61 .38 .65 6 0C O LI 15

LI 1 8 96.05 -.09 -.16 .17 . 80 93.44 .18 .46 .33 .56 6 OC 0 LI 18

LI 82 B 97.3 3 1.19 2. 19 .22 1 . 04 93.51 .25 .64 1.19 2.03 6 or 0 LI 82 B

LI 90C 95.88 -.26 -.47 .18 . 85 92.78 -.48 1 .23 .61 1 • 04 60C O LI 90C

LI 9 0 R 96.1 3 -.01 -.01 .18 . 83 93.67 .41 1.05 .69 l.l^ 6 OC 0 LI 90R

L236B 96.37 .24 .44 .33 1.56 93. 53 .26 .68 . 36 .62 6 OC 0 L? 36 B L243 95.93 -.21 -. 38 .19 . 91 93.04 -.22 -.57 .53 .90 6 OC o L24 3 L54 3 95.47 -.67 1 • 22 .16 .77 92.63 -.63 1 .62 .61 1 • 04 60V 0 L543

GR. MEAN • 96.14 PERCENT GRAND MEAN • 93.26 PERCENT TEST DETERMINATIONS • 10

SD MEANS - .55 PERCENT SD OF MEANS • . 39 PERCENT 8 LABS IN GRAND MFANS

AVERAGE SDR • .21 PERCENT AVERAGE SDR • .59 PERCENT

TOTAL NUMBER OF LABORATORIES REPORTING - Best Values: H29

E50 96.0 percent

93.3 percent

REPORT NO. 5 1

G

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T60-2 TABLE 2 OPACITY (PAPER BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75, OPACITY OF PAPER (15 DEG. /DI PFUSE , ILLUMTNANT A) - BAL TYPE

JANUARY 19^8

LAB CODE F MEANS

H29 E50 COORDINATESMAJOR MINOR

AVG

R. SDR VAR PROPERTY-- -TEST I NSTRUMENT---CONDT TI< L543 0 95.47 92.63 -.89 -.22 .90 60V OPACITY ( PAPER BACKING ), DIAN0/BNL

LI 9 0C 0 95.88 92.78 -.46 -.29 . 94 60C OPACITY ( PAPER BACKING ), BAUSCH LOMB

LI 15 0 95.92 93.50 -. 07 .31 .95 60C OPACITY ( PAPER BACKING )

,

BAUSCH LOMB

L243 o 95.93 93.04 -. 29 -.09 .90 60C OPACITY ( PAPER BACKING ), BAUSCH LOMB

LI 1 9 0 96.05 93. 44 • 01 • 20 .68 60C OPACITY ( PAPER BACKING >, BAUSCH LOMB

L190R 0 96.1 3 93.67 .20 .36 1 .00 60C OPACITY ( PAPER BACKING ), BAUSCH LOMB

L236B 0 96.37 93. 53 • 34 • 1 1 1.09 60C OPACITY ( PAPER BACKING ). BAUSCH LOMB

LI 82

B

0 97.33 93.51 1.16 -. 38 1.53 60C OPACITY ( PAPER BACKING ), BAUSCH LOMB

GMEANS: 96.14

95% 1 93.26ELLIPSE: 2.11 . 98 1.00 WITH GAMMA 29 DEGREES

31
REPORT NO. 51

G

TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T60-3 TABLE 1 OPACITY (PAPER BACKING) IN PERCENT

TAPPI SUGGESTED METHOD T51 9 SU -70, DIFFUSE OPACITY OF PAPER - ILLUMINANT C, ELREPHO TYPE SAMPLE PRINTING SAMPLE PRINTING TEST D. • 1 0 LAB H29 77 GRAMS PER SQUARE METER E50 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 96.650 -.067 -.34 .135 1 .38 94. 160 • 212 .67 . 363 1 . 03 6 0 J « LI 00

LI 50 96. 594 -.123 -.63 . 071 .72 93.933 -.015 -.05 .510 1 .45 60J O LI 50

LI 76 73.900 -22.817 -116.48 .133 1 . 36 78.450 -15.498 - 49.13 .143 .41 6 OZ a LI 76

LI 82 E 96.61

0

-.107 -.55 . 088 . 89 93.660 - .288 -.91 . 303 . 86 60 J O LI 82

F

L233E 96.700 -.017 -.09 . 047 . 48 94.1 40 • 192 .61 . 386 1 .10 6 OF 6 L233F

L242 97. 230 .513 2.62 • 116 1.18 93.760 -.188 -.60 . 334 .95 60J 0 L242

L244 96.770 .053 .27 . 095 .97 93.580 -.368 -1.17 . 301 • 86 60F 8 L244

L 25 1 96.654 -.063 -.32 .103 1 . 05 93.400 -.548 -1.74 • 39 1 . 1 3 60F O L251 L360 96.510 -.207 -1.06 • 110 1.12 93.950 . 002 .01 . 45 3 1 .29 6 OF O L360

L44 6 96. 570 -.147 -.75 . 047 . 48 94.175 .227 • 7 2 • 21 4 .61 60J O L446 L484 96.844 .127 .65 .116 1 . 19 94.392 • 444 1 .41 . 275 .78 60 F 0 L 484

L57 5 96. 760 .043 .22 .151 1. 54 94.280 .332 1 . 05 . 329 • 94 60 J 8 Lf “*5

GR. MEAN •96.71

7

PERCENT GRAND MEAN 93.948 PERCFNT TEST DETERMINATIONS 10 SD MEANS • .196 PERCENT SD OF MEANS • .31 5 PERCENT 11 LABS IN GRAND M FAN'S AVERAGE SDR - . 098 PERCFNT AVERAGE SDR • .351 PERCENT

L253C 96. 060 -.657 -3.36 .117 1 .20 93.250 -.69 8 -2.21 . 31 0 . 88 6 or. L253C TOTAL NUMBER OF 1LABORATORIES REPORTING - 13

Best Values : H29 96.7 percent

E50 93.9 percent

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

REPORT NO. 51

G

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T60-3 TABLE 2 OPACITY (PAPER BACKING) IN PERCFNT

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

JANUARY 1970

MEANS COORDINATES AVG

CODE F H29 E50 MAJ8R MINOR R. SDR VAR PROPERTY-- -TF ST INSTRUMENT---•CONDITIONS

LI 76 * 73.900 78.450 14.388- 23.523 . 88 60Z OPACITY ( PAPER BACKING ), MARTIN SWEETS L253C 96.060 93.250 .666 -.690 1 . 04 60G OPACITY ( PAPER BACKING )

,

GARDNER

L36 0 0 96.51

0

93.950 -.012 -. 207 1 .21 60 F OPACITY ( PAPER BACKING )

.

ZEISS ELREPHO, FMY-C< ! 0 ) N ) TRAP

L4 4 6 0 96.570 94.175 -.234 -.136 . 54 60 J OPACITY ( PAPFR BACKING )

,

ZEISS ELREPHO, F«Y-C( 10 ) FTLTFR

LI 5 0 8 96.594 93.933 .0 09 -.124 1 .09 60 J OPACITY ( PAPER BACKING )

,

ZEISS ELREPHO, FMY-C( 10 ) FI LTFR

LI 82E 8 96.610 93.660 .263 -.121 . 88 60 J OPACITY ( PAPER BACKING ), ZEISS ELRFPH8, FMY-Cl 10 ) FILTER

LI 00 8 96.650 94.160 -.21 5 -.057 1 .21 60 J OPACITY ( PAPFR BACKING ), ZEISS ELREPHO, FMY-C< 10 ) FILTER

L25 1 8 96.654 93.400 .545 -.090 1 . 09 60F OPACITY ( PAPER BACKING )

,

ZEISS ELREPHO, FMY-Cl 10 ) NO TRAP

L233E 0 96.700 94.140 -.192 -.008 . 79 60F OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY-C< 10 ) NO TRAP

L57 5 8 96. 760 94.280 -.329 .058 1 • 24 60 J OPACITY ( PAPER BACKING )

,

ZEISS ELREPHO, FHY-C( 10 > FILTER

L24 4 0 96.770 93.580 .370 .035 .91 60F OPACITY ( PAPER BACKING ). ZEISS ELREPHO, FHY-C< 10 ) NO TRAP

L48 4 8 96.844 94.392 -.437 .148 .98 60F OPACITY ( PAPER BACKING )

,

ZEISS ELREPHO, FMY-C< 10 ) NO TRAP

L2 4 2 8 97.230 93.760 .212 .503 1 . 07 60 J OPACITY ( PAPER BACKING )

,

ZEI SS ELREPHO, FMY-C( 10 ) FILTFR

GMEANS: 96.71 93.948 1 .00 95% ELLIPSE: .971 . 601 WITH GAMMA --87 DEGREES

32
PERCENT

OPACITY , ELREPH0 TYPE, PAPER BACKING

SAMPLE H29 = 96-72 PERCENT SAMPLE E50 = 93-95 PERCENT

ln

co

to

CO

CM

CO

CDCD

CO

0 +.X.* NOT IN GRAND MEANS

LQ

LU ANALYSIS T60-3

LU

_J

Q_

CE

CQ

O O C

-©-

O

o

CD

CO

CD

CO

o

©

©

©

SAMPLE H29

95-8 96-2 96-6 97-0

PERCENT

97.4 97.8

33
REPORT NO. 5 1 G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY ! 9^8 ANALYSIS T65-1 TABLE 1 DIRECTIONAL BLUE REFLECTANCE IN PERCENT

TAPPI STANDARD T452 es-77. BRIGHTNESS 1

; MARTIN SWEETS ( ACBT 1 GF ) IS STANDARD F0R THIS ANALYSIS

SAMPLE PRINTING SAMPLE PRINTING TEST D. 8 LAB J33 73 GRAMS PER SQUARE METER H31 84 GRAMS PER SQUARE METER

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

LI 0 8 68.20 • 21 .53 • 12 . 51 81.57 .49 . 88 . 1 4 .81 65M 0 I 1 08

LI 22 67.9 2 -. 06 -.15 .17 .72 81.09 .01 .01 .12 .73 65N 0 LI 2?

LI 32 67.67 -.31 -.77 .76 3.28 81 .06 -.02 -.03 . 07 .44 65N 0 I 1 32

LI 5 8 68.25 .26 .65 .18 .76 80.21 -.87 -1 .54 .12 .73 65N 0 LI 58

LI 76A 66.95 -1.04 -2.55 .29 1.26 81 .14 . 06 .10 .21 1 .21 65 A 0 LI 76 A

LI 90C 67.81 -.17 -.43 .08 . 36 81 . 16 . 08 .15 .15 . 88 65A 0 LI 90C

L21 0M 67.86 -.12 -.30 .13 . 56 80.90 -. 1 8 -.32 • 21 1.21 65M 0 L21 OM

L21 ON 68.19 .20 .50 .16 .71 80.95 -. 1 3 -.23 .22 1 .29 65N 0 L2 1 ON

L21 1 68.1 0 • 1 1 • 28 .09 .40 79.81 -1 .2“* -2.25 .07 • 40 65N 6 L21

1

L225 68.47 .49 1 .20 • 22 .94 81.74 .66 1.17 . 1 3 .76 65N 0 1225 L243 67.59 -.40 -.98 .34 1 .48 80.74 -.34 -.61 . I 6 .94 65A 0 L243

L27 5 68.12 .14 .34 .13 . 55 80.96 -. 1 2 -.21 .20 1.17 65M 0 L275 L288 68.85 . 86 2.13 .26 1.10 80.60 -.48 -.85 . 25 1 .47 65N 0 L? 88 L30 8 67.74 -.25 -.61 .36 1 . 56 82. 15 1.07 1 .90 .37 2.15 65N 0 L? 08 L31 5 67.70 -.29 -.70 • 11 .46 81 . 36 .28 .50 • 1 1 .62 65 N 0 L315

L317 67.89 -.10 -.24 • 12 . 54 80.77 -.31 -.54 .10 .61 65M 0 L31 7 L52 3 68.24 .25 .62 .17 .72 81 . 45 .37 .66 • 1 4 . 83 65N 0 L523 L565 67.20 - . 79 -1 .93 .20 . 86 76.92 -4.16 -7.38 .24 1 . 39 65A X L5 55 L598 68.19 . 20 .50 . 49 2.11 81 .77 .69 1 .23 .30 1.74 65M 0 L598

GR. MEAN - 67.99 PERCENT GRAND MEAN - 81 .08 PERCENT TEST DETERMINATIONS • 8 SD MEANS - . 41 PERCENT ST 0F MEANS • .56 PERCENT 18 LABS IN GRAND MF ANS AVERAGE SDR - .23 PERCENT AVERAGE SDR - .17 PERCENT

LI 05 67.22 -.76 -1 .87 .20 . 85 81 . 22 • 14 . 26 .09 .52 6 5T LI 05

LI 7 6 I 67.96 -.02 -.06 .18 • 79 82.20 1.12 1 .99 . 09 .54 651 LI 761

L21 3 67.59 -.40 -.98 .29 1.27 81 . 57 .49 .88 .0^ .41 65T L213

L2 2 3 68.02 . 04 .10 .07 . 30 81 .75 .67 1.19 . 09 .54 65G L223

L224 68.19 .20 .50 .08 . 36 82.26 1.18 2.10 .05 .30 6 5H L224

L 2 32 68.19 .20 .50 .37 1.60 82.00 .92 1.63 .00 • 00 65P 12 32 L241 69.29 1.30 3.20 .08 .36 83.56 2.48 4.41 .07 • 44 651 L241 L249 69.0 2 1. 04 2.56 .14 . 60 81 .45 .37 .66 • 26 1 .54 65P L24<? L2 5 6 67.42 -.56 -1 .38 • 51 2. 20 81.11 .03 .06 .11 .66 65H • 1256

L26 0 68.37 . 39 .96 .17 .72 81 .42 • 34 . 61 .09 • 52 65P L260 L278 70.37 2.39 5.88 .23 .99 83.06 1 .98 3.52 .18 1 • 04 65P L278

L301 67.36 -.62 -1 . 53 • 31 1.32 80.35 -.73 -1 . 30 .21 1 .25 65G 13 01 L31 2 69.06 1 .08 2.65 • 18 . 76 80.00 -1.08 -1 .92 .00 . 00 6SP L312

L321 69.9 4 1 .95 4.80 • 18 • 76 83.50 2.4 2 4.30 . 00 .00 65P 1321

L3 2 8 67.94 -. 05 -.12 . 32 1 . 38 79.25 -1.83 -3.25 .27 1 .57 6 5P L328

L339 69.09 1.10 2.71 . 1 8 . 78 79.94 -1.14 -2.03 • 1 6 1 • 04 e5P L339

L380 72.00 4.01 9.87 .00 . 00 83.00 1 .92 3.41 .00 .00 65P L780 L388 68.00 • 01 .03 .27 1.15 80.94 -.14 -.25 .32 1 . 98 65P L388

L442 67.46 -.52 -1.29 .15 . 65 80.96 -.12 -.21 . 1 3 . 76 651 L4 L54 3 68.1 7 . 19 . 46 . 33 1 . 41 82.19 1.11 1.97 .06 . 38 65H L5 4 3 L562 72.37 4.39 10.80 .44 1 . 90 83. 37 2.29 4.07 1 .46 8.55 65P L562 L58 7 67.96 -.02 -.06 • 18 .76 82.35 1 .27 2. 25 . 05 .31 6 51 L587

L59 1 66.67 -1.31 -3.23 .23 1 • 00 80.30 -.70 -1 . 39 . 06 . 35 65H L591 TOTAL NUMBER OF LABORATORIES REPORTING - 42

Best Values: J33 68.0 + 0 6 percent

H31 81.1 + 0.9 percent

34
REPORT NO. E1C TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T65-1 TABLE 2 DIRECTIONAL BLUE REFLECTANCE IN PERCENT

TAPPI STANDARD T452 OS-77, 'BRIGHTNESS*; MARTIN SWEETS ( ACBT i GE ) IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG

CODE F J33 H31 MAJOR MINOR R. SDB VAR PROPERTY*- -TP ST INSTRUMENT--- CONDITIONS

L591 66.67 80. 30 . 50 -1.42 .68 65H BLUE REFLECTANCE ( DIRECTIONAL ), HUNTER

L176A 0 66.95 81 .14 ai -1.02 1 .23 65A BLUE REFLECTANCE ( DIRECTIONAL >, MARTIN SWEETS < ACBT ), S-2 L565 X 67.20 76.92 3. 99 -1.39 1 . 1 3 65 A BLUE REFLECTANCE ( DIRECTIONAL), MARTIN SWEETS I ACBT ), S-2

LI 05 67.22 81 . 22 26 -.73 .69 65T BLUE REFLECTANCE ( DIRECTIONAL ), HUNTER D25D2M

L301 67.36 80. 35 . 63 - .73 1 • 29 65G BLUE REFLECTANCE ( DIRECTIONAL ). GARDNER

L25 6 67.42 81.11 1

1

-.55 1 .43 65 H BLUE RFPLECTANCE < DIRECTIONAL ). HUNTER

L442 67.46 80. 96 . 04 -.54 .71 651 BLUE REFLECTANCE ( DIRECTIONAL >. HUNTER D25D2A

L21 3 67.59 81 . 57 -.55 -.32 .84 65T BLUE REFLECTANCE < DIRECTIONAL ), HUNTER D25D2M

L2 43 0 67.59 80.74 . 26 -.45 1 .21 65A BLUE REPLECTANCE < DIRECTIONAL ), MARTIN SWEETS ( ACBT ),S-2

LI 3 2 0 67.67 81 . 06 -.03 -.31 1 . 86 65N BLUE REFLECTANCE ( DIRECTIONAL), DI AN 0/MART IN SWEFTS, S-4

L31 5 0 67.70 81 . 36 -. 32 -.24 .54 65 N BLUE REFLECTANCE ( DIRECTIONAL ). D I AN 0/M A RT I

N

SWEETS, S-4 L308 0 67. 74 82.15 -1.09 -.09 1 .85 65 N BLUE REPLECTANCE ( DIRECTIONAL ), D I AN 0/M A RT I N SWEFTS, S-4

LI 9 OC 0 67.61 81.16 -.11 -.16 .62 65 A BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS ( ACBT ), S-2

L21 OM 0 67.86 80.90 .16 -.15 .89 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS IGE), S-l L317 0 67.89 80.77 .29 -.14 .57 65 M BLUE REFLECTANCE < DIRECTIONAL ), MARTIN SWEETS ICE). S-l

LI 22 0 67.92 81 . 09 -.02 -.06 .72 65N BLUE REPLECTANCE ( DIRECTIONAL ), D T AN 0/M A RT I

N

SWEFTS, S-4 L328 67.94 ^9.25 1.80 -.32 1 • 47 65 P BLUE REFLECTANCE < DIRECTIONAL ), PH0T0V0LT

LI 76

1

67.96 82.20 -1.11 .14 .67 651 BLUE REFLECTANCE ( DIRECTIONAL ), HUNTER D25D2A

L587 67.96 82. 35 -1.26 .17 . 54 651 BLUE REPLECTANCE < DIRECTIONAL ), HUNTER D25D2A

L38 8 68.00 80.94 .14 -.01 1 .51 65P BLUE REFLECTANCE < DIRECTIONAL ), PH0T0V0LT

L223 * 68.02 81.75 -.66 .14 .42 65 G BLUE REPLECTANCE ( DIRECTIONAL ), GARDNER

L21 1 0 68.10 79.81 1.27 -.08 . 40 65N BLUE REFLECTANCE ( DI RECTIONAL ), DI AN 0/MARTI

N

SWEETS, S-4 L275 0 68.1 2 80.96 . 14 .12 .86 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS ( GF ), S-l L543 68.17 82.19 -1.07 .35 . 89 65H BLUE REFLECTANCE ( DIRECTIONAL ), HUNTFR

L59 8 0 68.19 81 .77 -.66 . 30 1 .92 65 W BLUE REPLECTANCE ( DIRFCTIONAL), MARTIN SWEETS (GF), S-l

L2 3 2 68.19 82.00 -. 80 .34 . 80 65 P BLUE REFLFCTANCF ( DIRECTIONAL ), PH0T0V0LT

L2 2 4 68.19 82. 26 -1.14 . 37 . 33 65H BLUE REFLECTANCE ( DIRECTIONAL ), HUNTER

L21 ON 0 68.19 80.95 .16 . 18 1 .00 65N BLUE REFLECTANCE ( DIRECTIONAL ), DI AN 0/MARTIN SWFETS, S-4

LI 0 8 0 68.20 81 . 57 -.46 .28 .66 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS (GE), S-l L52 3 0 68.24 81 . 45 -. 33 . 30 .78 65N BLUE REFLECTANCE ( DIRECTIONAL ), DI AN 0/M ART IN SWEETS, S-4

LI 58 0 68.25 80.21 .90 .13 • 75 65 N BLUE REFLECTANCE ( DIRECTIONAL ), D I AN 0/MA RT I

N

SWEFTS, S-4

L2 6 0 68.37 81 .42 -.28 .44 .62 65 P BLUE REFLECTANCE < DIRECTIONAL ), PH0T0V0LT

L2 2 5 0 68.47 81.74 -. 58 . 58 . 85 65N BLUE REFLECTANCE ( DIRECTIONAL ), DIAN0/MARTIN SWEETS, S-4

L2 8 8 0 68.85 80. 60 .60 .78 1 .29 65N BLUE REFLECTANCE ( DIRECTIONAL ), DI AN0/MARTIN SWEFTS, S-4 L249 69.02 81.45 -. 21 1.08 1 .07 65P BLUE REFLECTANCE ( DIRECTIONAL ), PH0T0V0LT

L31 2 69.06 80.00 1.23 .90 .38 65 P BLUE REFLECTANCE ( DIRECTIONAL ), PH0T0V0LT

L339 69.09 79.94 1.29 .92 .91 65P BLUE REFLECTANCE < DIRECTIONAL ), PH0T0V0LT

L2 41 69.29 83. 56 -2.26 1.66 .40 651 BLUE REFLECTANCE I DIRECTIONAL ), HUNTER D25D2A

L321 69.94 83. 50 -2.10 2.29 . 38 65P BLUE REFLECTANCE ( DIRECTIONAL ), PH0T0V0LT

L2 78 70.37 83. 06 -1 . 60 2.66 1 .02 65 P BLUE REPLECTANCE ( DIRECTIONAL ), PH0T0V0LT

L38 0 72.00 83.00 -1.30 4.25 o o 65P BLUE REPLECTANCE C DIRECTIONAL ), PH0T0V0LT

L562 72.37 83. 37 -1.62 4.68 5 • 22 65P BLUE REFLECTANCE ( DIRECTIONAL), PH0T0V0LT

GMEANS

;

67.99 81 . 08 1 .00 95% ELLIPSE: 1.57 1.12 WITH GAMMA —81 DEGREES

35
PERCENT

BLUE REFLECTANCE, DIRECTIONAL

SAMPLE J33 = 68.0 PERCENT SAMPLE H31

I I I 81.1 PERCENTI 1

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66.5 67.5 68.5

PERCENT

69 .5

36
REPORT NO. 510 TAPP I COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T65-2 TABLE 1 DIFFUSE BLUE REFLECTANCE IN PERCENT I GLOSS TRAP)

TAPPI SUGGESTED METBOD T525 SU-72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 8 LAB J33 73 GRAMS PER SQUARE METER H31 84 GRAMS PER SQUARE METER

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

L100 67.26 -.38 -.55 .12 .94 81.66 .12 .18 .06 .91 65F 6 LI 00

LI 21 67.73 .09 .13 .12 . 95 81 .46 -.10 -.16 .12 1.63 65K 0 LI 21

LI 3 6 68.77 1.13 1.62 .12 . 94 82.98 1.42 2.18 .05 .65 65F o LI 36

LI 50 66.87 -.77 -1.10 .15 1.23 81 . 04 -.52 -.79 .05 .66 65Q 0 LI 50

LI 70 67.81 .17 .25 .12 1 . 00 81.49 -.07 -.11 .04 .49 65B e LI 70

LI 82 67.74 • 10 .14 .13 1.06 81.69 .13 .20 . 00 .00 65F 6 LI 82 L21 OK 69.26 1.62 2.31 .10 .79 82.41 .35 1.30 .05 .65 65 K e L210K

L2 36 67.15 -.49 -.70 .16 1.32 81 .07 -.49 -.76 .16 2.30 65K 0 L2 36 L242 66.99 -.65 -.93 .08 . 60 81.28 -.28 -.43 .00 .00 65F 0 L242

L2 80 67.66 • 02 .03 .14 1.13 81 . 51 -.05 -.07 .13 1.77 6 50 0 L280

L325 69.78 2.14 3.07 .32 2. 59 84.56 3.00 4.61 .08 1 .05 65F * L325

L34 9 66.87 -.77 -1.11 .08 .61 80.89 -.67 -1.03 .06 .90 65K 0 L349

L362 66.98 -. 66 -.95 .08 . 67 80.33 -1.23 -1.89 .19 2.70 65K 0 L362

L446 67.4 8 -.16 -.23 .14 1.15 81 .44 -.12 -.19 .04 .54 65F 0 L446

L57 3 68.29 . 65 .93 .18 1.43 82.26 .70 1.07 .08 1 .05 65F 0 L573 L575 67.75 • 1 1 .16 .15 1.18 81 .89 .33 .51 .05 .76 65F 0 L575

GR • MEAN • 67.64 PERCENT GRAND MEAN • 81.56 PERCENT TEST DETE RM I NATIONS • 8 SD MEANS - .70 PERCENT SD OF MEANS - .65 PERCENT 15 LABS IN GRAND MEANS

AVERAGE SDR • .12 PERCENT AVERAGE SDR • .07 PERCENT

L2 89 68.95 1 .31 1 .87 .12 .96 83.27 1.71 2.63 . 05 .65 650 L2 89 TOTAL NUMBER OF LABORATORIES REPORTING - 17

Best Values: J33 67.7 + 0.9 percent

H31 81.5 + 1.1 percent

The following laboratories were omitted from the grand means because of extreme test results: 325.

REPORT NO. 51G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T65-2 TABLE 2 DIFFUSE BLUE REFLECTANCE IN PERCENT (GLOSS TRAP)

TAPPI SUGGESTED METBOD T525 SU-72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

LAB MEANS COORDINATES AVG

CODB F J33 H31 MAJOR MINOR R. SDR VAR PROPERTY---TEST INSTRUMENT-'—CONDITIONS

L349 0 66.87 80.89 -1 . 02 .03 .75 65 K DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP, MGO ( ZEISS > BASE

LI 50 0 66.87 81.04 -.91 .14 .94 65Q DIFFUSE REFLECTANCE, ELREPH0, GL • TRAP, ZEISS ABSOLUTE BASE

L362 0 66.98 80.33 -1. 32 -.46 1.68 65K DIFFUSE REFLECTANCE, ELREPH6, GL.TRAP, MG0 (ZEISS) BASE

L242 0 66.99 81.28 -.66 .24 .30 65F DIFPUSE REFLECTANCE, ELREPH0. GL.TRAP. NRC-PTB ABSOLUTE BASE

L23 6 0 67.15 81.07 -.69 -.03 1.81 65K DIFFUSE REFLECTANCE. ELREPH0

,

GL.TRAP, MGO ( ZEISS > BASF L100 0 67.26 81.68 -.20 . 34 .92 65 F DIFFUSE REFLECTANCE, ELREPH0

,

GL.TRAP, NRC-PTB ABSOLUTE BASE

L446 0 67.48 81.44 -.20 .02 .85 65F DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP. NRC-PTB ABSOLUTE BASE

L280 0 67.66 81.51 -.02 -.05 1 .45 650 DIFFUSE REFLECTANCE, ELREPH0. GL.TRAP, ZFISS ABSOLUTE BASE

LI 2 1 0 67.73 81.46 -. 01 -.14 1.29 65K DIFFUSE REFLECTANCF, ELREPH0, GL.TRAP, MGO ( ZEISS > BASE

LI 82 0 67.74 81 .69 . 16 .03 .63 65 F DIFFUSE REFLECTANCE. ELREPH0, GL.TRAP. NRC-PTB ABSOLUTE BASF

L57 5 0 67.75 81.89 .30 .17 .97 65F DIFFUSE REFLECTANCE, ELREPHP

,

GL.TRAP. NRC-PTB ABSOLUTE BASE

LI 7 0 0 67.81 81.49 . 08 -.17 .75 65B DIFFUSE REFLECTANCE. ELREPH0, GL.TRAP, NBS ABSOLUTE BASE

L573 0 68.29 82. 26 .95 .07 1.24 65F DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP. NRC-PTB ABSOLUTE BASE

LI 36 0 68.77 82.98 1.79 .27 .80 65F DIFFUSE REFLECTANCE, ELREPH0

,

GL.TRAP. NRC-PTB ABSOLUTE BASE

L2 89 68.95 83.27 2.12 .37 .80 650 DIFFUSE REFLECTANCE, ELREPH0. GL.TRAP, SPECIFIC CALIBRATION

L210E 0 69.26 82.41 1.76 -.47 .72 65K DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP. MGO ( ZEISS ) BASE

L325 * 69.78 84.56 3.61 .75 1 .82 65 F DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP. NRC-PTB ABSOLUTE LASE

GMEANS: 67.64 81 . 56 1 .00 95* ELLIPSE: 2.65 .68 WITH GAMMA - 42 DEGREES

37
PERCENT

BLUE REFLECTRNCE * DIFFUSE, WITH TRAP

SAMPLE J33 = 67.6 PERCENT

i i 1 1

SAMPLE H31 =81.6 PERCENT

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1 1 1— r 66-5 67.5

1 r 65.5 68.5 69-5 70.5

PERCENT

38
REPORT NO. 51

G

TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 19^8 ANALYSIS T65-3 TABLE 1 DIFFUSE BLUE REFLECTANCE IN PERCENT ( N0 GLOSS TRAP)

TAPPI SUGGESTED METHOD T525 SU-72. BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

SAMPLE PRINTING SAMPLE PRINTING TFST D. 8 LAB J33 73 GRAMS PER SQUARE METER H31 84 GRAMS PER SQUARF METER

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

LI 1 5 67 .46 -1.42 -1 .65 .13 . 83 80.43 -1.36 -2.02 .07 1.10 65E 0 LI 15

LI 52 68.47 -.41 - .48 .17 1.12 81.85 . 06 .09 .12 1 . 85 65E 0 LI 52

LI 57 68.46 -.42 -.48 .10 . 66 81.25 -.54 -.81 . 02 .27 65F o LI 57

LI 6 1 69. 1 1 .23 .27 • 1 1 . 71 81 . 74 -.05 -.07 . 02 . 25 65F 0 LI 61 LI 73A 69.64 . 76 .88 . 1 1 .68 81 . 85 . 06 .09 .00 .00 65F 0 Li 73

A

LI 94 68.28 -.60 -.69 .15 . 96 81.31 -.48 -.72 . 07 1.13 65E 0 LI 94 L238A 69.00 • 12 .14 .06 .41 81 .99 . 20 .30 . 05 . 80 65F 0 L278A

L244 68.63 -.25 -.29 .13 . 85 82.07 .28 .41 .05 .82 65D 0 L244

L251 68.28 -.60 -.69 .08 . 53 81 . 23 - .56 - . 84 . 09 1 .37 65E 0 L251 L25 5 69.37 .49 .57 .09 . 58 82.23 • 44 .66 .05 .85 65D 0 L255 L285 70.71 1 . 83 2.12 .15 .95 83.03 1.23 1 . 84 .12 1.81 65E 0 L2 85 L305 68.95 .07 .08 • 12 . 77 78.90 -2.90 -4.31 • 11 1 .64 65D ft L305

L36 0 68.33 -.55 -.64 .33 2. 1 2 81 .98 .19 .28 . 0^ 1.10 65E 0 L360

L384 68.37 -.51 -.59 .07 . 45 81 .30 - .49 -.73 .00 . 00 65S 0 L384

L484 70.20 1 .31 1.52 .50 3.17 82.82 1 .03 1 .53 .17 2.65 6 5E 0 L4 84

1565 67.91 -.97 -1 .12 .22 1 . 42 77.00 -4.79 -7. 14 . 30 4.7Q 65 W ft L5 65

GR. MEAN - 68.88 PERCENT GRAND MEAN • 81.79 PERCENT TEST DETERMINATIONS 8 SD MEANS - .86 PERCENT SD OF MEANS - .67 PERCENT 14 LABS IN GRAND MEANS

AVERAGE SDR - .16 PERCENT AVERAGE SDR - .06 PERCENT

TOTAL NUMBER OF LABORATORIES REPORTING - 16

Best Values: J33 68.8 + 1.4 percent

H31 81.8 + 1.3 percent

The following laboratories were omitted from the grand means because of extreme test results: 305,

565.

REPORT NO. 51 G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T65-3 TABLE 2 DIFFUSE BLUE REFLECTANCE IN PERCENT (NO G LOSS TRAP)

TAPPI SUGGESTED METHOD T525 SU-72. BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG.

JANUARY 19 **8

OBSERVATION

)

LAB CODE F MEANS

J33 H31 COORDINATESMAJOR MINOR AVG

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

LI 15 0 67.46 80.43 -1 . 95 -.23 .96 65 E DIFFUSE REFLECTANCE, ELREPHO

,

NO TRAP, MGO ( ZEISS ) BASE

L565 ft 67.91 77.0 0 -3. 66 -3.24 3.06 65 W DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, NBS MG0 BASE

L251 o 68.28 81 . 23 -.82 - . 09 .95 65E DIFFUSE REFLECTANCE, ELRFPHO, NO TRAP, MGO (ZEISS) BASE

LI 94 0 68.28 81 .31 -.77 -.02 1 • 04 65E DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, MGO ( ZEISS ) BASF L360 0 68.33 81 . 98 -. 33 . 48 1.61 65 E DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, MGO (ZEISS) BASF

L384 0 68.37 81 . 30 -.70 -.09 .23 65 S DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, ABSOLUTE- UNKNOWN

LI 57 0 68.46 81.25 -. 66 -.18 .47 65F DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, MG6 ( ZEISS ) BASE

LI 52 0 68.47 81 .85 -.29 .30 1 .48 65 B DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, MGO ( ZEISS ) BASF

L24 4 0 68.63 82.07 -.03 .37 • 64 66 D DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, NRC-PTB ABSOLUTE

L305 ft 68.96 78.90 -1.69 -2.36 1 .21 66 D DIPFUS1 REFLECTANCE, ELREPHO, NO TRAP, NRC-PTB ABSOLUTE

L238A 0 69.00 81.99 .22 .08 .60 65E DIFFUSE REFLECTANCE, ELRFPHO, NO TRAP, MOO ( ZEISS ) BASE

LI 61 0 69.11 81.74 .15 -.18 .48 65E DIFFUSE REFLFCTANCE, ELREPHO, NO TRAP, MGO (ZEISS) BASE

L2S5 0 69.37 82.23 .66 . 06 .71 65 D DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, NRC-PTB ABS0LUTP

L173A 0 69.64 81 . 85 . 64 -.41 . 34 65E DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, MG0 ( ZEISS ) BASE

L4B4 0 70.20 82.82 1 . 67 .03 2.91 65E DIFFUSE REFLECTANCE. ELREPHO, NO TRAP, MG0 (ZEISS) BASE

L285 0 70.71 83.03 2.21 -.12 1.38 65 E DIFFUSE REFLECTANCE, ELRFPHO, NO TRAP, MGO ( ZEISS ) BASE GMEANS

:

68.88

95% ! 81.79ELLIPSE

:

3.09 .71

1 .00 WITH GAMMA 37 DEGREES

39
PERCENT

BLUE REFLECTANCE, DIFFUSE, N0 TRAP

SAMPLE J33 = 68.9 PERCENT

I I I I SAMPLE H31 =81.8 PERCENT

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66.0 67.0 68.0 69.0

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70.0 71 .0 72.0

40
REPORT N0. 51 G TAPPI C0LLA 30RATI VE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T75-1 TABLE 1 SPECULAR GLOSS AT 75 DEGREES, IN GLOSS UNITS

TAPPI STANDARD T480 OS-72, SPECULAR GLOSS OF PAPER AND PAPERBOARD AT 75 DEGREES

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 1 0 LAB J19 149 GRAMS PER SQUARE METER J23 116 GRAMS PER SQUARE METER

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

LI 08 49.

0

-.2 -.14 .9 .70 67.2 . 4 .18 . 8 • 73 75H 0 LI 08

LI 21 49.

2

-.0 -.01 1 .

3

1 . 00 66.6 -.3 -.15 • 8 .71 75H e LI 21

LI 2 2 48.0 -1 .

2

-.70 . 8 . 62 66.1 - . 7 -.38 . 8 .71 75H 0 LI 22

LI 2 8 49.7 . 4 .26 1.3 .97 65.5 -1 .4 -.71 1.8 1 .62 75G e LI 28

LI 3 4 46.

4

-2.9 -1.65 1.3 . 98 66.5 -.4 -.20 1 .

0

.85 75H R LI 34

LI 36 52.1 2.9 1 .66 1 .1 . 84 70.2 3. 3 1.69 1 .

3

1.18 75G O LI 36

LI 49 50. 1 . 8 . 49 1.6 1.24 67.5 .6 .31 . 8 .75 75G 0 LI 49

LI 53 53. 2 4. 0 2.32 1.4 1 . 06 71.0 4.2 2.13 1 .

4

1 . 27 75C» 0 LI 53

LI 62 51 .

8

2. 6 1 . 49 . 9 .72 67.5 . 6 . 32 . 7 .65 75G 0 LI 6 2

LI 66 51 .

4

2. 1 1.24 1.8 1.43 67.6 . 7 .37 . "f .61 75B 0 LI 66

LI 73A 51 .

8

2.5 1 .48 1.6 1 . 26 70.9 4.0 2.06 . 6 .50 75G 0 LI 7?a

LI 82 43. 8 -.5 -.27 1.2 . 92 67.1 • 2 • 12 1 .

0

. 88 75H 0 LI 82

LI 09 50.2 1 . 0 . 58 . 5 • 42 64.5 -2.4 -1 . 22 1.2 1 .01 75P « LI 89

LI 90R 49. 0 -.2 -.14 1.1 . 88 65.8 -1.1 -.56 1 .

0

. 85 75G 0 LI 90R

L2 06 49.4 • 2 • 10 1.7 1.35 66.4 -.5 -.24 # 7 .62 75H 0 L2 06

L21 0 49.9 . 7 .40 1.3 . 99 69.5 2.6 1 . 34 1 .

0

.90 75H 0 L21 0 L21 1 47. 6 -1.7 -.96 1 • 0 . 76 64.9 -2.0 -1 .02 1 .

3

1.14 75H 0 L21 1 L21 2 51.4 2.2 1.27 1.1 .83 67.6 . 8 . 39 1.7 1 .49 75P 0 L21?

L21 3 47.6 -1 .

6

-.95 1.4 1.13 66.7 -.2 -.09 . 7 .63 7 5H 0 L213

L2 2 3 49.

1

-.2 - . 10 1.7 1.33 67.0 • 2 . 08 . 8 • 74 7 5H 0 L2 2 3 L224 45.6 -3.7 -2.14 1.2 . 92 62.4 -4.5 -2.31 1 .

0

.89 75H 0 L2 24 L23 0 42.4 -6.9 -3.97 1.6 1 .23 59.9 -7. 0 -3. 58 . - .65 75H X L230 L243 47. 9 -1 .4 -.78 .9 .68 67.7 . 8 .42 • 8 .72 75 B 0 L24?

L251 50.2 1.0 .58 1.3 . 97 68.0 1 .

2

.60 1 . 1 .98 75G 0 L251 L253P 49.

3

. 0 .01 1.3 1 . 02 66.3 -.6 -.32 . 7 .64 75G 0 L253P

L255 49.6 • 3 .20 1.0 .75 66.5 -. 4 -.20 1. 1 .95 7 5H 0 L255 L256 49.2 -.1 - .04 1.3 .98 67.1 • 2 • 1 1 # 7 .61 75H 0 L256

L259 48.5 -.7 -.42 .9 .72 66.0 -.9 -.46 1 . 1 1 .01 75H 0 L2S9

L26 2 49. 3 • 1 . 06 .9 .71 66.9 . 1 . 03 . 8 .73 75K 0 L2 62

L2 7 8 50. 1 . 3 .47 1.2 .92 70.2 3. 3 1 .68 1 . 1 1 .00 75G 0 L2 70 L279 40. 3 -1.0 - .55 1.6 1.22 65.9 -1.0 -.51 .9 .77 75G 0 L279

L291 45.2 -4.0 -2.34 .9 • 69 61.9 -4.9 -2.53 1.2 1 . 08 75 H * L2 91 L301 49.4 .2 .09 1.2 .91 66.5 -. 4 -.20 . 6 .56 75 H 0 L301

L31 5 53. 7 4.4 2.58 .9 .74 71.2 4. 3 2.21 1 .

3

1.16 75G « L? 1 5 L31 7 48.7 - • 5 -.31 1 .

0

.79 67.0 # 2 . 08 . 8 .72 75H 0 L3 1 7

L321 48.7 -.6 -.32 1.5 1.16 66. 1 -. 7 -.38 . 7 .59 75G 0 L321 L32 3 47.6 -1 .

6

-.95 1.2 .90 65.9 -1 .

0

-.49 . 7 .58 75R 0 L323

L32 8 50.4 1 .

2

.69 1 .6 1 .20 70.0 3. 1 1 .60 1 .

3

1 .15 75R 0 L32 8 L339 48.7 -.5 -.31 1.8 1.38 65.2 -1 .6 -.84 7.8 6.83 7 5P 0 L339

L3 4 9 47. 7 -1 .

5

-. 88 1.9 1. 50 65.7 -1.2 -.60 1 .

5

1 . 30 7 5H 0 L349

L388 50.

8

1.5 .90 1.0 . 80 59.4 -7. 4 -3.81 . 8 .67 75P 0 L388

L396 50.9 1.6 .94 1.0 • 74 62.9 -4.

0

-2.06 1

.

7

1 .46 75G X L396

LA 5 6 47. 9 -1.3 -.78 1 .

3

.98 66.3 -.6 -.32 . 8 .70 75H 0 L456

L483 49.7 • 4 .25 1.4 1.12 64.8 -2. 0 -1.05 1 • 1 .96 75B 0 L4 83 L573 48. 8 -.5 -.29 .5 . 36 67.8 . 9 .46 1 .

5

1 .28 75G 0 L573

L5*>4 48.1 -1 .1 - .65 1.4 1 . 06 65.6 -1 .3 -.68 • 8 • 74 75G 0 L574

L58 3 48.7 -.6 - .33 1.8 1 . 36 65.7 -1 .2 -.59 . 6 . 56 75H 0 L583

L587 50.4 1 . 1 .66 1.8 1.43 67.7 . 8 . 42 1 .a 1 .24 75H 0 L587

L592 47.7 -1 .5 - .88 1.1 . 86 65.8 -1 . 1 -.56 . 7 . 65 75G 0 L592

GR. MEAN • 49.3 GLOSS UNITS GRAND MEAN • 66.9 GLOSS UNITS TEST DETERMINATIONS • 10

SD MEANS • 1 • 7 GLOSS UNITS SD OF MEANS 2.0 GLOSS UNITS 46 LABS IN GRAND MEANS

AVERAGE SDR - 1.3 GLOSS UNITS AVERAGE SDR •

i .i GLASS UNITS

L2 SS 49.0 -.3 -.17 1 .

6

1.39 61 .6 -5.2 -2.69 1.9 I .66 761 L26S

TOTAL NUMBER OF LABORATORIES REPORTING 50

Best Values: J19 49+3 gloss units

J23 67+4 gloss units

The following laboratories were omitted from the grand means because of extreme test results: s d~lJ v,,k 388.

41
REPORT NO. S1G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1976 ANALYSIS T75-1 TABLE 2 SPECULAR GLOSS AT 75 DEGREES, IN GLOSS UNITS

TAPPI STANDARD T480 OS-72, SPECULAR GLOSS OF PAPER AND PAPERBOARD AT 75 DEGREES

LAB C6DE F MEANS

J19 J23 COORDINATES

MAJOR MINOR

AVG

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

L2 3 0 X 42.

4

59. 9 -9.8 .7 .94 75H SPECULAR GLOSS i 75 DEGREE * i HUNTER

L291 * 45. 2 61.9 -6.4 -.1 . 68 75H SPECULAR GLOSS < 75 DEGREE ' * HUNTER

L2 2 4 0 45.6 62.4 -5.8 -.1 .91 75H SPECULAR GLOSS ( 75 DEGREE " i HUNTER

LI 3 4 0 46.4 66. 5 -2.1 1.9 .92 75H SPECULAR GLOSS < 75 DEGREE ' i HUNTER

L21

1

0 47. 6 64. 9 -2.6 -.0 .95 75H SPECULAR GLOSS ( 75 DEGREE ' i HUNTER

L32 3 0 47. 6 65.9 -1 .8 .6 .74 75H SPECULAR GLOSS < 75 DEGREE * i HUNTER

L21 3 0 47. 6 66. 7 -1 .2 1.1 .86 75H SPECULAR GLOSS i 75 DEGREE *

»

HUNTER

L34 9 0 47.7 65. 7 -1.9 .4 1.40 75H SPECULAR GLOSS i 75 DEGREE ' i HUNTER

L592 0 47.7 65. 8 -1.8 .4 .76 75G SPECULAR GLOSS < 75 DEGREE * * GARDNER

L243 0 47.9 67. 7 -.3 1.6 .70 75B SPECULAR GLOSS < 75 DEGREE * * BAUSCH LOMB

L456 0 47.9 66.3 -1.3 • 6 .84 75 H SPECULAR GLOSS i 75 DEGREE • * HUNTER

LI 2 2 6 48.0 66. 1 -1.3 .4 .67 75H SPECULAR GLOSS < 75 DEGREE "

»

HUNTER

L574 0 48.1 65. 6 -1.7 -.0 .90 75G SPECULAR GLOSS < 75 DEGREE ' i GARDNER

L279 0 48.

3

65.9 -1.4 .1 .99 75G SPECULAR GLOSS ( 75 DEGREE * # GARDNER

L25 9 0 48. 5 66. 0 -1 .2 -.0 .86 75H SPECULAR GLOSS ( 75 DBG REE ' * HUNTER

L583 0 48.7 65.7 -1.2 -.3 .96 75 H SPECULAR GLOSS < 75 DEGREE ' # HUNTER

L321 0 48.7 66. 1 -.9 -.1 .87 75G SPECULAR GLOSS < 75 DEGREE *

«

GARDNER

L339 0 48.7 65. 2 -1.6 -.6 4.11 75P SPBCULAR GLOSS ( 75 DEGREE * i PHOTOVOLT

L317 0 48.7 67. 0 -.2 .5 .76 75H SPECULAR GLOSS ( 75 DEGREE ' i HUNTER

L573 0 48.8 67.8 • 4 1.0 . 82 75G SPECULAR GLOSS < 75 DEGREE *

»

GARDNER

LI 82 0 48.8 6'T . 1 -.1 .5 .90 75 H SPECULAR GLOSS < 75 DEGREE ' • HUNTER

L288 49.0 61.6 -4.2 -3.2 1 . 53 751 SPECULAR GLOSS < 75 DEGREE • » HUNTER, 20 C,

LI 0 8 0 49.0 67.2 .1 .4 .72 75H SPECULAR GLOSS < 75 DEGREE *

»

HUNTER

LI 90R 0 49.0 65. 8 -1 .0 -.5 . 87 75G SPECULAR GLOSS ( 75 DEGREE GARDNER

L22 3 0 49.1 67. 0 . 0 • 2 1.03 75H SPECULAR GLOSS < 75 DEGREE * • HUNTER

L256 0 49.2 67. 1 • 1 .2 . 79 75 H SPECULAR GLOSS ( 75 DEGREE *

• HUNTER

LI 21 0 49.2 66. 6 -.2 -.2 .85 75H SPECULAR GLOSS < 75 DEGREE ' * HUNTER L253P 0 49.3 66.3 -.5 -.4 .83 75G SPECULAR GLOSS ( 75 DEGREE * • GARDNER

L262 0 49.3 66.9 • 1 -.0 .72 75C SPECULAR GLOSS ( 75 DEGREE " • GAERTNER ( K-C

L301 0 49.4 66.5 -.2 - . 4 .74 75H SPECULAR GLOSS < 75 DEGREE * • HUNTER

L206 0 49.4 66.4 -.2 - • 4 .98 75H SPECULAR GLOSS < 75 DEGREE * # HUNTER

L255 0 49.6 66.5 -.1 -.5 . 85 75H SPECULAR GLOSS < 75 DEGREE * • HUNTER

L48 3 0 49.7 64. 8 -1.3 -1.7 1.04 75H SPECULAR GLOSS ( 75 DEGREE ' * HUNTER

LI 2 8 0 49.7 65. 5 -.8 -1.2 1.29 750 SPECULAR GLOSS ( 75 DEGREE * i GARDNER

L21 0 0 49.9 69. 5 2.4 1.2 .94 75H SPECULAR GLOSS ( 75 DEGREE *

»

HUNTER

L278 0 50. 1 70.2 3.0 1.5 .96 75G SPECULAR GLOSS ( 75 DEGREF " # GARDNER

LI 4 9 0 50.1 67. 5 1.0 -.2 .99 75G SPECULAR GLOSS ( 75 DEGREE " * GARDNER

LI 89 * 50.2 64.5 -1 .2 -2.3 .72 75P SPECULAR GLOSS ( 75 DEGREE PHOTOVOLT

L251 0 50.2 68.0 1.5 -.0 .98 75G SPECULAR GLOSS ( 75 DEGREE GARDNER

L587 0 50.4 67. 7 1 .4 -.3 1.34 75H SPECULAR GLOSS ( 75 DEGREE '

• HUNTER

L328 0 50.4 70.

0

3.2 1 • 1 1 .22 75 H SPECULAR GLOSS i 75 DEGREF HUNTER

L388 * 50.8 59. 4 -4.6 -6. 0 . 74 75P SPECULAR GLOSS ( 75 DEGREE * 0 PHOTOVOLT

L396 X 50.9 62. 9 -2.0 -3.9 1.10 75 G SPECULAR GLOSS < 75 DEGREE * * GARDNER

LI 66 0 51 .

4

67. 6 1.9 -1.2 1.02 75B SPECULAR GL0SS i 75 DEGREE ' • BAUSCH LOMB

L21 2 0 51 .

4

67. 6 2.0 -1.2 1.16 75P SPECULAR GLOSS ( 75 DEGREE * 1 PHOTOVOLT

L173A 0 51 .

8

70.9 4.7 .7 . 88 75 G SPECULAR GLOSS ( 75 DEGREE GARDNER

LI 62 0 51.8 67. 5 2.1 -1.5 .69 75G SPECULAR GLOSS < 75 DEGREE GARDNER

LI 36 0 52.1 70.2 4.4 -.0 1.01 T5G SPECULAR GLOSS < 75 DEGREE * 0 GARDNER

LI 53 0 53. 2 71.0 5.8 -.3 1.16 75G SPECULAR GLOSS ( 75 DEGREE * 0 GARDNER

L31 5 « 53.7 71.2 6.2 -.6 .95 75G SPECULAR GLOSS < 75 DEGREE " 0 GARDNER

GMEANS: 49.

3

95%

66.9

ELLIPSE: 6.3 2.2

1 .00 WITH GAMMA - 49 DEGREES

42
GL0SS

UNITS

SPECULAR GL0SS , 75 DEGREE

SAMPLE J 1 9 = 49.3 GLOSS UNITS SAMPLE J23 = 66-9 GLOSS UNITS

GL0SS UNITS

43
REPORT NO

LAB CODE L100

1105

LI 1 8 LI 2 2 L123F

LI 2 5

LI 2

8

LI 3 1 LI 39

LI ^ 1

LI 5 3 LI 5 8

LI 59

LI 6 2 LI 66

LI 73B

LI 74

LI 82

LI 83 L19 0C L203A

L203C

L21 2 L21 3 L223

L228

L2 3 3 L239A

L2 41 1249

L2 e'9 L2 6 0

L2 61 L2 62

L2 85

L29 1 L297

L305

L309

L31 8 L323

L32 4 L326

L328

L3 31 L339

L34

1

L35 2 L35 6 L35 8

L37 2 L37 6 L37 8 L380 L382

L39 0 L55 6 L557

L5 59

L5 6 0

L5 61 L567

L57 4 L57 5 L581

# sic TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1970 ANALYSIS T90-1 TABLE 1 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T411 OS-76

SAMPLE

B28 83 GRAMS

BAG

i PER SQUARE METER

SAMPLE

H33 96 GRAMS

PRINTING

PER SQUARE METER TEST D. 1 1 0 MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

5.447 -.052 -.50 . 086 . 83 6.221 -.080 -.75 .110 1 .31 9 CV 0 LI 00 5.316 -.183 -1 .75 .105 1 .01 6.034 -.267 -2.51 . 063 • 74 90T * LI 05

5. 497 -.002 -.02 . 064 .62 6.379 .078 .73 . 062 • 74 90V e LI 1 8 5.474 -.025 -.24 .228 2.19 6. 280 -.021 -.20 .160 1 .90 90V a LI 22 5.720 • 221 2.11 .155 1 • 49 6.490 • 1 89 1.77 . 084 1 • 00 9 OF a LI 23T- 5.474 -.025 -.24 .165 1 • 58 6.413 .112 1.05 .151 1 .79 9 OT e L 1 25 5.41 2 -.087 -.83 . 067 .65 6.276 -.025 -.24 . 095 1.13 90T 0 LI 28 5.630 .131 1.25 .106 1.02 6. 370 . 069 . 64 . 067 . 80 90T o 11 31 5.625 .126 1.20 .109 1 • 04 6.475 .174 1.63 .123 1 .46 90T 0 LI *9 5.31 1 -.188 -1.79 .071 .68 6.166 -.135 -1 .27 . 104 1 .23 9 OT 0 LI 41

5.57 1 .072 .69 .053 . 51 6.327 . 026 . 24 . 070 . 83 90T 0 LI 5? 5.600 .101 .96 .125 1.20 6. 340 . 029 .36 .070 . 83 907 0 LI 58 5.490 -.009 -.08 .145 1.39 6. 340 . 039 .36 . 084 1 . 00 90T o LI 59

5. 474 -.025 -.24 . 087 . 84 6.267 - . 034 -.32 . 047 . 56 90 D a LI 62 5.493 -.006 -.06 . 197 1 . 89 6.290 -. 01 1 -.11 . 075 .90 90T 0 LI 66

5.500 .001 .01 . 082 .78 6.360 . 059 .55 . 052 .61 9 OF a LI 73B 5.180 -.319 -3. 04 .103 . 99 6.010 - .291 -2.73 . 05"7 .67 9 OT » LI 74

5. 351 -.148 -1.42 . 078 .75 6. 229 -.072 -.68 .075 .89 9CL a LI 82 5.315 -.1 84 -1 .75 • 11 5 1.11 6. 195 -. 106 -1 . 00 . 063 . 75 90T o LI 83 5.370 -.129 -1 .23 . 095 .91 6.130 -.171 -1.61 .106 1 .26 9 OT a LI 9 or

5. 580 . 081 .77 .123 1.18 6. 370 . 069 .64 . 095 1.13 90T a L2 0“ A 5. 560 .061 .58 .117 1.13 6.290 -.011 -.11 . 099 1.18 90T a L2 03C

5. 585 . 086 .82 . 078 . 75 6. 399 . 098 .91 . 072 . 86 90T a L21 2 5.630 .131 1.25 . 082 . 79 6.420 .119 1.11 . 079 .94 9 OT a L21 7 5.522 . 023 • 22 . 092 . 88 6.330 . 029 .27 . 060 .71 9 0 V a L225

5.51 0 .01 1 • 1 1 . 074 . 71 6.280 -.021 -.20 . 079 .94 90T a L228

5.611 • 1 12 1.07 • 218 2. 09 6.366 . 065 .60 .125 1.49 90Q a L2 33 5.640 . 141 1.35 . 099 . 96 6.465 • 164 1 .53 . 091 1 . 09 9 OT a L238> 5.510 • on • 11 .105 1.01 6.206 - . 095 -.89 . 095 1 .12 9CT a L2 4 1 5.51 0 .Oil • 1 1 , 052 . 50 6.390 . 089 .83 • 112 1 .33 9 0 T a L249

5.67 7 .178 1.70 . 066 .63 6.475 .174 1.63 . 066 .79 90T a L? 59

5. 480 -.019 -.18 . 092 . 88 6.220 - . 081 -.76 . 092 1 .09 9 OT 0 L260

5. 54 4 . 045 .43 . 084 . 81 6. 400 . 099 .92 . 062 • 74 90T 0 L261

5. 460 -.039 -.37 . 070 .67 6.230 -.071 -.67 . 048 .57 90 T a L262 4.940 -.559 -5.33 .143 1 . 37 6. 040 - .261 -2.45 .117 1 .39 9 OT * L2 85

5. 390 -.109 -1 . 04 • 1 10 1 . 06 6.170 -.131 -1.23 . 1 06 1 .26 90T a L291 5.530 .031 .30 .125 1 .20 6. 385 . 084 .70 . 091 1 .09 9 OT 0 L297

5*41 0 -.089 - -.85 . 070 .67 6.355 . 054 .50 . 096 1.14 9 OT a L305

5. 448 -.051 - .49 . 065 . 63 6. 258 - . 043 -.41 . 064 .76 90T 0 L3 09

5. 505 .006 . 06 . 277 2.67 6.290 - . 01 1 -.1 1 . 1 43 1 .70 9 OT 0 1.31 8

5. 360 -.135 -1 . 33 .190 1 .82 5.940 -.361 -3.39 .171 2.03 9 OT * L323 5.530 .031 .30 • 082 • 79 6.310 . 009 . 08 . 057 .67 9 OT 0 L324

5. 61 5 .116 1.11 .106 1 • 01 6.400 . 099 .92 .071 • 84 9 OT a L326

5. 470 -.029 -.28 . 067 . 65 6.240 - . 061 -.58 . 0**0 .83 90T a L328 5.567 . 068 .65 • 082 • 79 6.245 -.056 -.53 . 060 .71 9 OT a L331

5.51 0 . 01 1 • 1 1 .166 1 .60 6. 240 - . 061 -.58 . 1 35 1 .60 9 OT 0 L339 5.652 .153 1.46 . 057 . 55 6.466 . 165 1 .54 . 087 1 .03 9 OT a L341 5.565 . 066 .63 . 108 1 • 04 6.260 - . 04 1 - . 39 .107 1 • 28 9 0 D a L352

5.51 4 . 01 5 .14 . 088 . 85 6.306 . 005 .04 . 071 . 84 9 OT a L356

5.41 5 - .084 -.80 . 055 . 53 6.213 - . 088 -.83 . 060 .71 9 OT a L358

5. 530 .031 .30 . 082 • 79 6. 370 .069 . 64 . 067 . 80 90T a L 372 5.530 . 031 .30 . 082 • 79 6.320 .019 .17 . 09 2 1 .09 9 OT a L376 5.52 0 • 021 .20 .169 1 • 62 6.3 50 . 049 .45 . 085 1 .01 9 OT a L378 5.480 -.019 -.18 . 079 .76 6.100 - .201 -1 .89 . 000 .00 90T « 1.3 80 5.672 .173 1 .65 .139 1 . 34 6.468 .167 1 .56 . 080 1 .05 9 OT a T.3 82

5.51 0 • 01 1 • 1 1 .088 • 84 6. 320 . 019 .17 . 063 .75 90T a L7C0

5. 282 -.217 -2.07 .108 1 • 04 6.095 - .206 -1 .93 . 062 • 73 9 0 T o L556

5. 435 -.064 -.61 .102 • 98 6. 305 . 004 .03 . 062 .73 9 OT a L5 C7

5. 520 • 021 .20 . 097 . 93 6.291 - . 01 0 -.1 0 . 059 .70 9 0 T a L559

5. 534 .035 .34 . 045 . 44 6. 362 . 061 .57 . 057 . 68 9 OT a L560

5. 390 -.109 -1 .04 .168 1 .61 6.305 . 004 .03 .128 1 .52 90T 0 L* 1 5.571 .072 .69 . 084 . 80 6. 387 . 086 . 80 . 060 .71 90V a L- 7 5.334 -.1 65 -1 .57 .101 .97 6. 1 98 -.104 -.97 . 053 .63 90V a L‘ *4 5. 466 -.033 -.31 . 1 03 .99 6.227 -.074 -.70 . 046 .55 90T 0 L575 5.595 .096 .92 . 072 . 70 6.4 35 . 134 1 • 25 .131 1 .56 90T a L581 44
REPORT NO. S1G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T90-1 TABLE I THICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T4U OS-76

SAMPLE BAG SAMPLE PRINTING TEST D. • 10 LAB B23 83 GRAMS; PER SQUARE METER H33 96 GRAMS PER SQUARE METER

C6DE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

L587 5.370 -.129 -1.23 .067 .65 6.190 -.111 1 0 . 08 9 1.04 90T 6 L5 87

GR. MEAN - 5.499 MILS GRAND MEAN • 6.301 MILS TEST DETF RMINATI8NS • 10

SD MEANS - .105 MILS SD 6F MEANS .107 MILS 64 LABS IN GRAND MEANS

AVERAGE SDR -

. 104 MILS AVERAGE SDR • . 084 MILS

GR. MEAN -139.67 MICROMETER GRAND MEAN •160.06 MICROMETER

Lies 5.324 -.175 -1 .67 .100 .96 6.260 - . 04 1 -.39 . 093 1.10 90B LI 86 L203B 5.260 -.239 -2.28 .190 1 • 82 6.040 -.261 -2.45 .117 1 .39 9 0C L203B

L2426 5.461 -.038 -.36 .113 1.09 6.233 -.066 -.64 .076 .90 90G L24?6

L242P 5.417 -.081 -.78 .133 1.28 6.3 32 .030 .28 .06 7 .80 90P P L242P

L243 5. 286 -.21 3 -2.03 .104 1.00 6.232 -.069 -.65 . 076 .90 90S L243

L251 5.224 -.274 -2.62 . 091 . 88 6.103 - . 198 -1.86 . 080 .95 90W L251

L32 2 5.530 . 031 .30 .236 2.27 6.090 -.211 -1 .98 .166 1.98 90U L322

L33 0 5.690 .191 1.82 . 197 1 . 89 6.160 -.141 -1.33 .143 1 .70 90U L3?0

L344 5.61 0 • 111 1.06 .110 1.06 6.270 -.031 -.29 .095 1.13 90U L344 L396M 5.205 -.294 -2. 80 .112 1.07 6.190 -.111 -1.04 • 066 .78 90S L396M

L4 84 5.203 -.296 -2. 83 . 068 . 65 6. 154 -.148 -1.39 . 068 .80 9 OE L4 84 L562 5. 160 -.339 -3.23 .158 1.52 6.000 - .301 -2.83 . 00 0 .00 90C L5i2

L56 3 5. 250 -.249 -2.38 .292 2. 80 6.240 -.061 -.58 .126 1.50 90U L563

L576 5. 459 # -.040 -.38 .107 1 . 03 6.127 -.174 -1.64 .071 .85 90C L5 76 TOTAL NUMFER OF LABORATORIES REPORTING - 80

Best Values: B28 5.50 + 0.18 mils

H33 6.30 + 0.18 mils

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

323.

45
REPORT N0. 51G TAPP I COLLABORATIVE REFERENCE PROGRAM JANUARY 1578 ANALYSIS T90-1 TABLE 2 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T4U OS-76

LAB MEANS COORDINATES AVG

CODE F B2 8 H33 MAJOR MINOR R. SDR VAR PR0PE RT Y-- -TEST INSTRUMENT- --CONDITIONS

L2 85 n 4 • 94 0 6. 040 -.578 .217 1.38 90T THICKNESS ( CALIPER ). TMI , MOTOR DRIVEN

L562 5,160 6.000 -.452 .031 . 76 90C THICKNESS ( CALIPER ), CADY, HAND DRIVEN

Li 74 « 5.180 6.01 0 -.431 . 0 24 .83 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

L484 5.203 6.154 -.313 .108 .73 90E THICKNESS ( CALIPER ), SCH0PPER , HAND DRIVEN

L396M 5.20 5 6.1 90 -.285 . 132 . 93 90S THICKNESS ( CALIPER ), SCH0PPE R , HAND DRIVEN

L251 5.224 6.1 03 -.334 .057 .91 90 W THICKNESS ( CALIPER ), L W, MOTOR DRIVEN, 20 C, 65% RH L56 3 5.250 6.240 -.218 .135 OJ in 90 U THICKNESS < CAl I PER >, TMI. HAND DRIVEN

L203B 5.260 6.040 -.354 -.012 1.61 90C THICKNESS ( CALIPER ), CADY, HAND DRIVEN

L55 6 0 5.282 6.095 -.299 • Oil . 89 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

L243 5.286 6.232 -.199 • 104 .95 90S THICKNESS ( CALIPER ), SCH0PPE R , HAND DRIVEN

LI 4 1 0 5.31 1 6.166 -.228 .040 • 96 90T thickness ( CALIPER ), TMI , MOTOR DRIVEN

LI 8 3 0 5.31 5 6.195 -.205 .057 .93 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

LI 05 * 5.316 6.034 -.319 -.0 56 . 88 90T THICKNESS ( CALIPER )

,

TMI , MOTOR DRIVEN

LI 85 5.324 6.260 -. 1 52 . 096 1.03 90B THICKNESS ( CALIPER ), AMTH0R, HAND DRIVEN

L57 4 0 5.334 6.198 -.1 89 . 045 . 80 90V THICKNESS ( CALIPER ). TMI , MOTOR DRIVEN, DIGITIZED

LI 82 0 5.351 6.229 -.155 .055 .82 90L THICKNESS ( CALIPER ), L W, MOTOR DRIVEN

L323 ft 5.36 0 5.940 -.355 -.154 1.93 90T THICKNESS ( CALIPER ), TMI . MOTOR DRIVEN

L587 0 5.37 0 6.190 -.170 • 014 .84 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

LI 90C 0 5.370 6.130 -.213 -.028 1 . 09 90T THICKNESS ( CALIPER >, TMI, MOTOR DRIVEN

L561 0 5.39 0 6.305 -.074 . 080 1.57 90T THICKNESS ( CALIPER ). TMI . MOTOR DRIVEN

L29

1

0 5.390 6.170 -.170 - .014 1.16 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

L3 05 0 5.41 0 6.355 -.024 .101 .90 90T THICKNESS ( CALIPER >, TMI , MOTOR DRI VFN

LI 2 8 0 5.41 2 6.276 -.079 . 044 . 89 90T THICKNESS ( CALIPER ) , TMI. MOTOR DRIVEN

L35 8 0 5.41 5 6.213 -.122 - .002 .62 90T THICKNESS ( CALIPER )

,

TMI . MOTOR DRIVEN

L242P 5.41 7 6.332 -.035 . 079 1 . 04 90P THICKNESS ( CALIPER), MESSMER, MOTOR DRIVEN, ISO R534 L557 0 5.435 6. 305 -.042 . 048 • 86 90T THICKNESS ( CALIPER ). TMI . MOTOR DRIVEN

LI 0 0 0 5.447 6.221 -.094 -.019 1.07 90V THICKNESS ( CALIPER ), TMI , MOTOR DRI VEN, DIGITIZED

L309 0 5.448 6.258 -.067 . 006 .70 90T TH ICKNESS ( CALIPER ). TMI , MOTOR DRIVEN

L57 6 5.459 6.1 27 -.153 -.094 .94 90C THICKNESS ( CALIPER ), CADY, HAND DRIVEN

L262 0 5.460 6.230 -.078 -.022 .62 90T THICKNESS ( CALIPER )

.

TMI , MOTOR DRIVEN

L2420 5.461 6.233 -.075 -.021 1 .00 900 THICKNESS ( CALIPER ). MESSMER, MOTOR DRIVEN, BS3983

L575 0 5.466 6.227 -.076 -.029 • 77 90T THICKNESS C CALIPER >, TMI . MOTOR DRIVEN

L32 8 0 5.47 0 6.240 -.064 -.022 • 74 90T THICKNESS C CALIPER )

,

TMI , MOTOR DRIVEN

LI 22 0 5.474 6.280 -.033 • 003 2.05 90V THICKNESS ( CALIPER ), TMI . M0TOR DRIVEN. DIGITIZED

Li 25 0 5.474 6.413 .062 .096 1.69 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

LI 62 0 5.474 6.267 -.042 -.006 .70 90D THICKNESS ( CALIPER ). CADY. MOTOR DRIVEN

L26 0 0 5.480 6.220 -.071 -.043 .99 90T THICKNESS ( CALI PER ). TMI , MOTOR DRIVEN

L380 » 5.480 6.100 -.157 -.127 .38 90T TH ICKNESS ( CALIPER >

.

TMI , MOTOR DRIVEN

Li 59 0 5. 49 0 6.340 • 021 . 033 1.20 90T THICKNESS < CALI PER ), TMI , MOTOR DRIVEN

Li 6 6 0 5.49 3 6.290 -.012 -.004 1.39 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

Li i 8 0 5.49 7 6.379 .054 .0 56 .68 90V THICKNESS ( CALIPER ), TMI . MOTOR DRIVEN. DIGITIZED

Li 73B 0 5.50 0 6.360 . 043 .040 .70 90F TH ICKNESS ( CALIPER ). FEDERAL

,

MOTOR DRIVEN

L31 8 0 5.505 6.290 -.004 -.012 2.18 90T TH ICKNESS ( CALIPER )

,

TMI , MOTOR DRIVEN

L24 9 0 5.51 0 6.390 .071 . 054 .92 90T THICKNESS ( CALIPER )

.

TMI . MOTOR DRIVEN

L241 0 5. 51 0 6.206 -.060 -.075 1.07 90T TH ICKNESS ( CALI PER ) , TMI , MOTOR DRIVEN

L228 0 5.51 0 6.280 -.008 - .023 .82 90T THICKNESS ( CALIPER ), TMI, MOTOR DRIVEN

L339 0 5.51 0 6.240 -.036 -.051 1 .60 90T THICKNESS ( CALI PER >. TMI . MOTOR DRIVEN

L39 0 0 5.51 0 6.320 . 021 .005 . 80 90T THICKNESS < CALIPER ). TMI . MOTOR DRIVEN

L3 5 6 0 5.51 4 6. 306 • 014 -.008 . 84 90T THICKNESS ( CALIPER ). TMI , MOTOR DRIVEN

L55 9 0 5.520 6.291 .007 -.022 • 82 90T TH ICKNESS ( CALIPER )

,

TMI , MOTOR DRIVEN

L378 0 5.520 6.350 . 049 .019 1 .32 90 T THICKNESS ( CALI PER >. TMI . MOTOR DRIVEN

L223 0 5.522 6. 330 .037 .003 . 80 90V THICKNESS ( CALIPER )

,

TMI . MOTOR DRIVEN. DIGITIZED

L322 5.530 6.090 -.129 -. 170 2.12 90U THICKNESS ( CALI PER ), TMI , HAND DRIVEN

L372 0 5.530 6. 370 .071 • 026 .80 90T THICKNESS ( CALIPER ), TMI . MOTOR DRIVEN

L37 6 0 5.530 6.320 .035 -.009 . 94 90T TH ICKNESS ( CALIPER ). TMI, MOTOR DRIVEN

L324 0 5.530 6.31 0 .028 - .016 .73 90T THICKNESS ( CALIPER >. TMI , MOTOR DRIVEN

L297 0 5.530 6.385 .081 . 036 1.14 90T THICKNESS ( CALI PER ), TMI , MOTOR DRIVEN

L56 0 0 5.534 6. 362 .068 .017 .56 9 0T TH ICKNESS ( CALIPER), TMI , MOTOR DRIVEN

L261 0 5.544 6.400 .102 .037 .77 90T THICKNESS ( CALIPER ), TMI . MOTOR DRIVEN L203C 0 5.560 6.290 .035 -.052 1.15 90T TH ICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

L352 0 5.565 6.260 .017 -.076 1.16 90D THICKNESS ( CALIPER ), CADY, MOTOR DRIVEN

L331 0 5.567 6.245 .007 -.088 .75 90T TH ICKNESS ( CALIPER ), TMI . MOTOR DRIVEN

L56 7 0 5.571 6. 387 .112 .008 .76 90V TH ICKNESS ( CALIPER ), TMI . MOTOR DRI VEN, DIGITIZED

LI 5 3 0 5.571 6. 327 • 069 - . 034 .67 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

L203A 0 5.580 6.370 .106 -.010 1.15 90T THICKNESS ( CALIPER ), TMI , MOTOR DRIVEN

46
REP0RT NO. 51

G

TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1578 ANALYSIS T90-1 TABLE 2 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T411 OS-76

LAB MEANS COORDINATES

CODE F B28 H33 MAJOR MINOR

L212 0 5.585 6.359 .130 .007

L581 0 5.59 5 6.435 . 1 63 .025

LI 58 0 5.600 6.340 .098 - . 045

L344 5.61 0 6.270 .055 -.101

L23 3 o 5.61 1 6.366 .125 -.035

L326 0 5.615 6.400 .152 -.014

LI 39 0 5.625 6.475 .212 .031

LI 31 fl 5.630 6.370 .141 - . 046

L21 3 0 5.630 6.420 .176 -.011 L238A o 5.640 6.465 .216 .014

L34 1 o 5.652 6.466 • 225 .006

L3 82 0 5.67 2 6.468 .240 -.007

L25 9 0 5.67 7 6.475 .249 -.006

L33 0 5.69 0 6.160 .033 -.236

LI 2 3F 0 5.720 6.490 .289 -.026 GMEANS

:

5.45 9 6. 301 95% ELLIPSE: .363 . 1 07

AVG

R. SDR VAR PROPERTY---TEST INSTRUMENT-

.81 90T THICKNESS ( CALI PER ), TMI , 1.13 90T THICKNESS ( CALIPER), TMI , 1 .01 90T THICKNESS ( CALIPER), TMI , 1 . 09 90U THICKNESS ( CALIPER ). TMI , 1.79 90Q TH ICKNESS ( CALIPER ), EMVECO,

.93 90T THICKNESS ( CALIPER ), TMI , 1.25 9 0T THICKNESS ( CALIPER ). TMI , .91 90T THICKNESS ( CALIPER ), TMI , .86 9 OT THICKNESS ( CALIPER ), TMI , 1 .02 90T THICKNESS ( CALIPER ), TMI , .79 90T thickness ( CALIPER ), TMI , 1.19 90T THICKNESS ( CALIPER ), TMI , .71 90T THICKNESS ( CALIPER), TMI , 1 .80 90 U THICKNESS ( CALIPER ), TMI , 1.25 90F TH ICKNESS ( CALIPER ), FEDERAL

1.00 WITH GAMMA • 45 DEGREES

--CONDITIONS

MOTOR DRIVEN

MOTOR DRIVEN MOTOR DRIVEN

HAND DRIVEN MOTOR DRIVEN MOTOR DRIVEN MOTOR DRIVEN MOTOR DRIVEN MOTOR DRIVEN

MOTOR DRIVEN MOTOR DRIVEN

MOTOR DRIVEN MOTOR DRIVEN

HAND DRIVEN MOTOR DRIVEN

47
MICROMETER

150

152

154

156

158

160

162

164

166

168

170

THICKNESS (CALIPER)

SAMPLE B28 = 5-50 MILS SAMPLE H33 = 6-30 MILS

SAMPLE 828 = 139.7 MICROMETER SAMPLE H33 = 160.1 MICROMETER

130 132 134 136 138 140 142 144 146 148

MICROMETER

48
REPORT NO. 51G TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T95-1 TABLE 1 G RAM MAG F (MASS PER UNIT AREA)

TAPPI STANDARD T41 0 OS-68 SAMPLE PRINTING SAMPLE KRAFT TEST D. • 1 0 LAB D25 93 GRAMS PER SQUARE METER D26 123 GRAMS PER SQUARE METER

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

L100 93.45 • 21 .20 .58 . 88 124.40 1.23 1.15 1.07 1 .41 95C 0 LI 00

LI 21 94.96 1.74 1 .66 .43 .66 123.11 -.06 -.06 .69 .90 95 B 0 LI 21

LI 62 91 .41 -1.83 -1.74 .54 . 82 121 .70 -1.47 -1 .37 .48 .63 95K 0 LI 62

L21 3 94.55 1.31 1.25 .69 1 . 04 124.49 1 .33 1 .23 .67 . 88 95F 0 L213

L2 3 3 18.39 -74.85 - 71.26 .24 . 36 24.22 -98.95 - 92.19 .20 .27 9 5X 0 L2 33 L249 93.51 .27 .26 .36 .55 123.90 .73 .68 . 74 .97 951 0 L249

L2 8 0 93.64 .40 .39 .77 1.16 123.78 .61 .57 .87 1.14 95T 0 L2 80 L297 93.67 .43 .41 • 12 .17 123.00 -.17 -.16 .00 .00 9 5C 0 L? 97 L305 92.60 -.64 -.60 .57 . 85 122.04 -1.13 -1 .05 .11 .14 95T 0 L3 05 L339 98.42 5. 18 4.94 .00 . 00 126.54 3.37 3.14 .00 .00 95T 0 L339 L344 93.05 -.19 -.18 .33 . 49 123.40 .23 .22 .42 .54 95T 0 L344

L378 93.09 -.15 -.14 .54 . 81 123.88 .71 .66 .59 .77 95E 0 L378

L392 92.74 -. 50 -.47 .00 . 00 122.30 -.87 -.81 .00 . 00 95T 0 L392

L442 93.07 -.17 -.16 .33 . 50 124.38 1 .21 1.13 .59 .77 95K 0 L442

L484 92. 56 -. 68 -.64 .84 1.27 122.51 -.66 -.61 .84 1.10 95H 0 L4 84

L557 89.2 2 -4.02 -3.82 1 .30 1.96 118.17 -5. 00 -4.66 1.09 1 .42 95 A 0 LSS7

L559 17.85 -75.39 - 71.77 • 26 . 40 23.47 -99.70 - 92.89 .16 .21 9 5 A 0 L559

L56 0 91.68 -1.56 -1 .48 .77 1.17 121.76 -1.41 -1 . 31 1 . 02 1 .34 9 5A 0 L560

L561 92.26 -.98 -.93 1 .21 1 . 82 121 . 13 -2.04 -1.90 2.16 2 . 84 95T 0 L561 L597 94.8 8 1.64 1.57 2.42 3. 66 123.80 .63 .59 1.30 1 .70 95C 0 L597

GR. MEAN 93.24 G/SQ. METER GRAND MEAN •123.17 G/SQ. METER TEST DETERMINATIONS • 1 < SD MEANS - 1 .05 G/SQ. METER SD 0F MEANS • 1 .07 G/SQ. METER 15 LABS IN GRAND MEANS

AVERAGE SDR - .66 G/SQ. METER AVERAGE SDR -

. 76 G/SQ. METER TOTAL NUMBER OF LABORATORIES REPORTING * 20

Best Values: D25 93.1 + 1.0 grams per square meter

D26 123.2 + 1.7 grams per square meter

The following laboratories were omitted from the

grand means because of extreme test results: 339,

557.

Data from the following laboratories were received

too late for proper processing and inclusion in the grand means: 305. Data from the following laboratories appear to have

been reported in incorrect units: 233, 559.

49
REPORT NO. 51

G

TAPP I COLLABORATIVE REFERENCE PROGRAM JANUARY 1978 ANALYSIS T95-1 TABLE 2 GRAMMAGE (MASS PER UNIT AREA)

TAPPI STANDARD T41 0 OS-68

LAB CODE F MEANS

D25 D26 COORDINATES

MAJOR MINOR

AVG

R. SDR VAR PROPERTY--- TEST I NSTRUMENT- --CONDI T IONS L559 0 1 7.85 23.47 -124.06 -15.22 .31 95A BASIS WEIGHT ( GRAMMAGE ), CHANDLER PPICE PAPER CUTTER

L2 3 3 0 18.39 24.22 -123. 1

5

-15.08 .31 95X BASIS WEIGHT ( GRAMMAGE )

:

SHEET CUT BY WHAT DEVICE?

L557 0 89.22 118.17 -6.38 -.59 1 .69 95A BASIS WEIGHT ( GRAMMAGE ), CHANDLER PRICE PAPER CUTTER

LI 6 2 0 91.41 121 . 70 -2. 33 . 29 .73 95K BASIS WEIGHT ( GRAMMAGE ), WEIGHED AS RECEIVED

L5 6 0 0 91 .68 121.76 -2. 09 .14 1.25 95A BASIS WEIGHT ( GRAMMAGE ), CHANDLER PRICE PAPER CUTTFR

L561 0 92.26 121 . 1

3

-2.15 -.72 2.33 95 T BASIS WEIGHT ( GRAMMAGE ), TEMPLATE CUT

L484 0 92.56 122.51 -.94 . 03 1.19 95 H BASIS WEIGHT ( GRAMMAGE ), SQUARE AND BLADE

L3 05 0 92.60 122.04 -1.25 -.23 .50 95T BASIS WEIGHT ( GRAMMAGE ), TEMPLATE CUT

L392 0 92.74 122.30 -.97 -.25 .00 95T BASIS WEIGHT ( GRAMMAGE ), TEMPLATE CUT

L34 4 o 93.05 123. 40 . 04 .30 .52 95T BASIS WEIGHT ( GRAMMAGE ), TEMPLATE CUT

L442 0 93.07 124.38 .75 .96 .63 95K BASIS WEIGHT (GRAMMAGE ), WEIGHED AS RECEIVED

L378 0 93.09 123. 88 .41 . 60 .79 95E BASIS WEIGHT ( GRAMMAGE ), GUILLOTINE TYPE CUTTER

LI 0 0 0 93.45 124.40 1.03 .70 1.14 95C BASIS WEIGHT ( GRAMMAGE ). CUTTING BOARD

L2 4 9 o 93.51 123.90 .72 .31 .76 951 BASIS WEIGHT ( GRAMMAGE > # INGENTO PAPER CUTTER

L280 0 93.64 123.78 . 72 .13 1.15 95T BASIS WE IGHT ( GRAMMAGE ), TEMPLATE CUT

L297 0 93.67 123.00 . 1 8 -.43 .09 95C BASIS WEIGHT ( GRAMMAGE ), CUTTING BOARD

L213 0 94.55 124. 49 1 . 87 -.02 .96 95F BASIS WEIGHT ( GRAMMAGE ), FOUR-SOUARE CUTTER

L59 7 0 94.88 123. 80 1 . 60 - • 74 2.68 95C BASIS WEIGHT ( GRAMMAGE ), CUTTING BOARD

LI 21 0 94.98 123. 1

1

1.17 -1.29 .78 95B BASIS WEIGHT ( GRAMMAGE >, CONCORA CUTTER

L33 9 0 98.42 126. 54 6.03 -1.38 .00 95T BASIS WEIGHT ( GRAMMAGE ), TEMPLATE CUT

GMEANS: 93.24 95% ; 123.17

ELLIPSE: 3. 94 1.72

1 . 00 WITH GAMMA - 45 DEGREES

50
G/SQ.

METER

120

121

122

123

124

125

126

GRAMMAGE (MASS PER UNIT AREA)

SAMPLE D25 = 93-2 G/SO . METER

I i i SAMPLE 026 = 123-2 G/SQ. METER

J I I I

CD + , X . « NOT IN GRAND MEANS

CNJ

<=> ANALYSIS T95-1

LlJ

I Q_

5Z

CL

CD

O

O

o

o

o

o

o

o

nr

o

o

o

o o

o

—T~

91

SAMPLE D25

89 90 92 93 94

G/SQ. METER

95 96 97

51
REPORT NO. 51

G

TAPPI COLLABORATIVE REFERENCE PROGRAM JANUARY 1978

SUMMARY TABLE

SAMPLE GRAND SD OF AVER REPL LABS LABS REPL TEST METHOD CODE MEAN MEAN SDR CRP INCL PARTI

C

TAPPI REPEAT REPR0D

AIR RESISTANCE, GURLEY H27 29.2 1.3 1 .6 10 53 60 10 1.4 3.5

T40-1 GURLEY UNITS H49 30. 9 1 .6 1 .8 1.6 4.3

AIR RESISTANCE, SHEFFIELD H27 107.7 5. 0 4.2 1 0 40 44 10 3. 7 13.8 T40-2 SHEFF. UNITS H49 103.9 5.2 4.4 3.9 14.5

AIR RESISTANCE, GURLEY HG FLOTATION B73 1229. 174. 52 0. 1 0 15 15 10 4 56. 481 . T41 -1 SEC/10 CC E64 515. 84. Ill . 97. 233. SMOOTHNESS, PARKER PRINTSURF J1 1 4.88 .39 .18 10 8 8 1 0 .15 1 . 09 T44-1 MICRONS E36 4. 08 .36 .15 .13 1 . 01 SMOOTHNESS, SHEFFIELD J1 1 138. 2 6.4 o o 15 88 93 10 8. 8 18.4

T45-1 SHEFF. UNITS E36 105. 8 4.7 6.2 5. 4 13.4 SMOOTHNESS, BEKK Jii 30.9 3.2 4.7 15 10 13 10 4. 1 9.1 T45-2 BEKK SECONDS E36 43. 0 6.0 5 .

4

4. 7 16.9 SMOOTHNESS, BENDTSEN Jll 161 . 13. 17. 1 0 11 11 10 15. 36. T47-1 ML/MIN E36 1 04. 7. 1 0. 9. 1 8. KAN INK ABSORPTION E50 64.4 4.3 .6 4 8 9 4 .9 11.9

T56-1 KAN UNITS H80 65.0 3.9 .6 .9 10.8

PH, COLD J 1 3 7.271 .626 .079 5 7 7 O . 155 1

.

7 ?9 T57-1 PH UNITS HI 7 4. 678 .265 .058 .114 . 740

PH, HOT J1 3 7. 772 .447 .087 5 6 7 2 . 170 1.245 TS7-2 PH UNITS H 1 7 4. 480 .240 .053 . 105 .670 OPACITY, BAL TYPE, 89% BACKING H29 94.65 .44 .27 1 0 78 92 5 .33 1 . 24 T60-1 PFRCENT E50 92.35 .72 .53 .65 2.06 OPACITY, BAL TYPE, PAPER BACKING H29 96.14 .55 .21 1 0 8 8 5 • 26 1 . 52 T60-2 PERCENT E50 93.26 .39 . 59 .73 1 .20 OPACITY, ELREPBO TYPE, PAPER BACKING H29 96.717 .196 .098 1 0 11 1 3 5 .121 . 549 T60-3 PERCENT E50 93.948 .31 5 .351 .435 . 926 BLUE REPLECTANCE, DIRECTIONAL J33 67.99 • 41 .23 8 18 42 6 .26 1.13

T65-1 PERCENT H31 81 . 0 8 .56 .17 .19 1 . 56 BLUE REFLECTANCE. DIFFUSE, WITH TRAP J33 67. 64 .70 • 12 8 15 17 6 .14 3 . 94 T65-2 PERCENT H31 81 .56 .65 . 07 .08 l . eo BLUE REF LECTANC F, DIFFUSE, NO TRAP J33 68.88 . 86 • 1 6 8 14 16 6 . 1 6 2.39 T65-3 PERCENT H31 81 .79 .67 . 06 .07 1 . 86 SPECULAR GLOSS. 75 DEGREE J19 49.3 1 .7 1 .3 10 46 50 5 1 .

6

4.9

T75-1 GLOSS UNITS J23 66.9 2.0 1 • 1 1 .

4

5.5 THICKNESS (CALIPER) B28 5. 499 .105 • 1 04 1 0 64 80 10 . 091 .290

T9 0-1 MILS H33 6. 301 .107 .084 .07 4 .296 GRAMMAGE ( MASS PER UNIT AREA) D25 93.24 1.05 . 66 1 0 15 20 3 1.06 3. 04 T95-1 G/SO. METER D26 123.17 1.07 . 76 1 .22 3.14

52
NBS-1 14A (REV. 7-73)

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO. TAPPI CRP 51G

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 #51G

5. Ppblicatlon Date 3/28/78

6. Performing Organization Code

7. AUTHOR(S)

R. G. Powell, E. B. Randall., J. Horlick

8. Performing Organ, Report No. NBSIR 78-1335

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, D.C. 20234

10. Project/Task/Work Unit No, 4015578

11. Contract/Grant No.

12. Sponsoring Organization Name and Complete Address (Street, City, State, ZIP)

Collaborative Testing Services, Inc., 9241 Wood Glade Drive,

Great Falls, Virginia 22066, and Technical Association of

the Pulp and Paper Industry.

13. Type of Report & Period Covered

Final

14. Sponsoring Agency Code

15. SUPPLEMENTARY NOTES

16. ABSTRACT (A 200-word or less (actual summary of most significant information. If document includes a significant

bibliography or literature survey, mention it here.)

Collaborative Reference Programs provide participating laboratories with the means for checking periodically the level and uniformity of their testing in

comparison with that of other participating laboratories. An important

by-product of the programs is the provision of realistic pictures of the state

of the testing art. This is one of the periodic reports showing averages for

each participant, within and between laboratory variability, and other information for participants and standards committees.

17. KEY WORDS (six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name; separated by semicolons)

Collaborative reference program; Laboratory evaluation; Paper, Precision;

Reference samples; Testing calibration.

18. AVAILABILITY |

1 Unlimited 19. SECURITY CLASS

(THIS REPORT)

21. NO. OF PAGES

fy For Official Distribution. Do Not Release to NTIS

UNCLASSIFIED

59

Order From Sup. of Doc., U.S. Government Printing Office Washington, D.C. 20402. SD Cat. No. Cl 3

20. SECURITY CLASS

(THIS PAGE)

22. Price

1

! Order From National Technical Information Service (NTIS)

Springfield, Virginia 22151 UNCLASSIFIED

USCOMM-DC 29042- P 74
.

'