7*7-/36c

TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 56G

U.S. DEPARTMENT OF COMMERCE

National Bureau of Standards
NBS COLLABORATIVE REFERENCE PROGRAMS

TAPP I Paper and Board (6 times per year)

Bursting strength

Tearing strength

Tensile breaking strength

Elongation to break

Tensile energy absorption

Folding endurance

Stiffness

Air resistance

Grammage

Smoothness

Surface pick strength

K & N ink absorption

PH

Opacity

Blue reflectance (brightness)

Specular gloss, 75°

Thickness

Concora (flat crush)

Ring crush

FKBG-API Containerboard (48 times per year)

Mullen burst of linerboard

Concora test of medium

MCCA Color and Appearance (4 times per year)

Gloss at 60°

Color and color difference

Retrorefiectivity

Rubber (4 times per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

ASTM Textiles (3 times per year)

Flammability (FF3-71 and FF5-74)

ASTM Cement . (2 times per year)

Chemical (11 chemical components)

Physical (8 characteristics)

AASHTQ Bituminous

Asphalt cement (2 times per year)

Cutbacks (once a year)

vev

saa3

Collaborative Reference Programs

B360 Polymer Building

National Bureau of Standards

Washington, D.C. 20234

Rev. 4/77
TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

Report No. 56G

R. G. Powell

TAPPI-NBS Research Associate

Collaborative Testing Services, Inc.

J. Horlick

Office of Testing Laboratory Evaluation Technology

Office of Engineering Standards

National Engineering Laboratory

NBSIR 79-1360 U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

INTRODUCTION

Reports 56S and 56G comprise the second set of reports

for the 78-79 program year* Participants in tests

which involve strength properties of paper will receive

only the S report; those in tests which measure other

properties will receive only the G report*

Notes and comments to individual laboratories and "Best

Values" applicable to a particular method are given

following Table 1 for each method* See page 4 of this

report for an explanation of "Best Values"* Please do

not confuse these Best Values with provisional values

included with the samples to detect serious discrepancies

at the time of test* NBS results* identified as L502 in

the optical tests* are included on some of the tables*

If there are any questions on the notes* the analyses*

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

Jeffrey Horlick on 30 1/921 -2946*

NBS-TAPPI Collaborative Reference Program

Office of Testing Laboratory Evaluation Technology

January 26, 1979
TAPPI-NBS COLLABORATIVE REFERENCE PROGRAM

'

BACKGROUND AND PURPOSE

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

Paper Industry established a collaborative reference program to provide a participating

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

comparison with that of other laboratories.

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

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

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

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

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

HOW THE PROGRAM WORKS

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

may enter the program at any time.

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

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

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

values should be known to the operator.)

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

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

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

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

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

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

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

recognized reference laboratories in this and other countries.

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

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

these values for each test method.

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

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

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

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

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

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

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

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

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

ii
i ii

iv

15

e ll

13

14

19

20

21

22

23

24

29

30

32

35

37

39

42

46

48

TABLE 6F 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 4 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 4 L type

60-3 Opacity, Paper Backing, Elrepho type

65-1 Blue Reflectance (Brightness), Directional

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

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

75-1 Specular Gloss, 75 degree

90-1 Thickness (Caliper)

95-1 Gramma ge (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, CRB

20-2 Tensile Breaking Strength - Printing Papers, Pendulum

25-

1 Tensile Energy Absorption - Packaging Papers

26-

1 Tensile Energy Absorption - Printing Papers

28-

1 Elongation to Break - Packaging Papers

29-

1 Elongation to Break - Printing Papers

30-

1 Folding Endurance, MIT type

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

35-

1 Stiffness, Gurley

36-

1 Stiffness, Taber

49-

1 Surface Pick Strength, IGT

50-

1 Surface Pick Strength, Wax

91-1 Concora (Flat Crush)

96-1 Ring Crush

ill
TABLE OF CONVERSION FACTORS TO METRIC (SI) UNITS

Physical

Quantity

To Convert

From To

Multiply

by

Bursting strength psi kPa 6.895

kg/cm2 kPa 98.07

bar kPa 100.00

Tearing strength g mN 9.807

Tensile strength lb/in. kN/ra .1751

lb/0.5 in. kN/ra .3502

lb/15 mm kN/m .2965

kg/15 mm kN/m .6538

kg/25 mm kN/m .3923

kg/mm kN/m 9.807

Tensile energy absorption ft-lb/ft

2 J/m2 14.59

in.-lb/in. 2 J/m2 175.1

kg-m/m2 J/m2 9.807

Bending stiffness g. cm 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 yro 25.40

iv
KEY TO TABLES AND GRAPHS

MEAN - The average of individual TEST DETERMINATIONS.

The number of TEST DETERMINATIONS in the mean

is given in the upper right corner of the

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

of this table.

GRAND MEAN -

(GR. MEAN)

The average of the individual laboratory MEANS,

excluding laboratories flagged (see column F)

with an X, #, or +. The GRAND MEAN is given

in US customary units and, where applicable, in

SI metric units

.

SD OF MEANS - (SD MEANS)

The standard deviation of the laboratory MEANS

about the GRAND MEAN; an index of the amonglaboratory precision.

DEV - The deviation or difference of the laboratory

MEAN from the GRAND MEAN.

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

SD OF MEANS; an indication of the degree of

divergence of the laboratory MEAN from the

GRAND MEAN. A N. DEV of more than 2 or less

than -2 may indicate that the participant is

not following the procedure considered standard

for this analysis.

SDR - The standard deviation of repeated measurements;

that is, of individual test determinations about

their MEAN.

AVERAGE SDR - The average of the individual laboratory SDR's; an index of the within-laboratory precision of

repeated measurements.

R. SDR - The relative standard deviation of repeated

measurements; that is, the ratio of the SDR to

the AVERAGE SDR; an indication of the ability

of a participant to repeat his measurements

relative to the average ability. The greater

the number of TEST DETERMINATIONS the closer

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

outside the limits given below, the participant

may not be following the procedure considered

standard for this analysis:

1
No. of test

Determinations

Lower limit Upper limit

for R. SDR 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

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

F - Flag, with following meaning:

+ - Excluded from grand means because VAR non- standard for this analysis.

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

the laboratory. (See NOTES following Table 1

for each method)

.

M - Excluded because data for one sample are missing

.

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

explanation of Graph)

.

Included in grand means but plotted point falls

outside of the 95% error ellipse. The 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.

COORDINATES - Distances along major and minor axes of error

ellipse. If special additive or concurrent

model of the measuring process applies to this

method, the distance along the minor axis

represents the random error within a laboratory

while that along the major axis also includes

a systematic laboratory component of error.

* -

S -

0 -

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 drawn so that, on the average, it will include 95% of the points

representing the laboratories.

Plotted symbols are as explained above (under

F) , except that an 'S' is plotted as an '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 withinlaboratory precision of a test result.

REP ROD - 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
RBP0RT N0. 56

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS 140 -X TABLE X AIR RESISTANCE, GURLEY UNITS (SECONDS/ICO CC ) TAPPI STANDARD T460 OS-75, AIR RESISTANCE OF PAPER

NOVEMBER 1978

PRINTING SAMPLE PRINTING TEST D.- 10 LAB J46 86 G SAMS PBS SQUARE METER J48 106 GRAMS PER SQUARE METBR CODE MEAN DBV N.DBV SDR R. SDR MEAN DEV N.DBV SDR R. SDR VAR F LAB

LX 07 12.52 .22 .31 1.01 1.10 31.05 .11 .07 1.99 1.15 40D 0 LX 07

LX 21 12.29 -.01 -.01 .81 .88 31.17 .23 .15 1.34 .77 40D 0 LX2X

LX 22 12.06 -.24 -.34 .88 .96 31.08 .14 .09 1.16 .67 40D 0 LX 22

LX 2 3 12.62 .32 .45 .82 .89 32.03 1.09 .69 3.02 1.74 40D 0 LX 23

LX 24G 11 .61 -. 69 -.97 .70 .77 28.47 -2.47 -1.56 1 .09 .63 40D 0 LX24G

LI 25 12.50 .20 .28 .95 1.03 31.66 .72 .46 1.62 .93 40D 0 LX 25

LX 28 13.00 .70 .98 .67 .73 32.10 1.16 .74 1 .20 .69 40D 0 LX 28

LX4X 13.19 .89 1.25 .81 .89 32.30 1 .36 .86 1.42 .82 40D 6 LX4X

LX 48 12.78 .48 .68 1.22 1.32 29.98 -.96 -.61 1.73 1.00 40D 0 LX 48

LX 53 12. 61 .31 .44 .73 .79 29. 55 -1.39 -.88 1.23 .71 40D 0 LX 53

LX 63 13.84 1.54 2.17 1.36 1.48 32.87 1.93 1.22 1.17 .67 40D 0 LX 63

LX 66 13.33 1.03 1.45 .78 . 85 34.28 3.34 2.12 2.02 1.16 40D 0 LI 66

LX 82G 11.54 -.76 -1.07 .70 .76 29.60 -1.34 -.85 1 .65 .95 40D 0 LI 82G

LX 83 12.84 . 54 .76 1.07 1.17 33.70 2.76 1.75 1.25 .72 40D 0 LX 83

LX 90C 12.79 .49 .69 .54 .59 30.30 -.64 -.40 2.11 1.22 4 OD 0 LX 90C LX90R 12.38 .08 .11 . 68 .74 30.75 -.19 -.12 1 .40 .80 40D 0 LX90R

L2X 2 10.31 -1.99 -2.80 .75 .82 26.53 -4.41 -2.79 1.26 .73 4 OD L2X2

L22 3 12.47 .17 . 24 .90 .98 31.73 .79 .50 2.20 1.27 40D 0 L2 23 L224 12.44 .14 .20 .96 1.05 29.66 -1.28 -.81 2.85 1.64 40D 6 L2 24 L230C 12.00 -.30 -.42 .94 1.03 30.60 -.34 -.21 1.26 .73 4 OD 0 L230G

L232 12.04 -.26 -.36 1 .07 1.17 28.90 -2.04 -1.29 3.77 2.17 40D 0 L2 32

L2 36 12.77 .47 .66 1.00 1.09 32.35 1.41 .89 1.88 1.08 40D 0 L236

L238A 12.98 . 68 .96 .78 .84 31.90 .96 .61 1 .45 .83 40D 0 L238A

L24X 11 .30 -1.00 -1.40 .67 .73 27.40 -3.54 -2.24 .97 .56 40D 0 L24X L242 11.13 -1.17 -1.64 .40 .44 31.36 .42 .27 1 .72 .99 40D * L242

L254 12. 67 .37 .52 .76 . 83 32.32 1.38 .88 1.51 .87 40D 0 L254

L26S 12.17 -.13 -.1 8 1.10 1.20 31.20 .26 .17 .91 .52 40D 0 L26X L262G 11 .69 -.61 -.86 .41 .45 25.79 -5.15 -3.26 1.63 .94 40D X L262G

L265 12. 50 .20 .28 .63 .69 30.00 -.94 -.60 1.11 .64 40D 0 L265

L2 74 12.23 -.07 -.10 .43 .46 30.14 -. 80 -.51 .71 .41 40D 0 L274

L27 8 12.44 .14 . 20 1 .03 1.12 31.27 .33 .21 1.28 .74 40D 0 L 278 L285 12.34 .04 .06 .64 .70 33.28 2.34 1.48 3.93 2.26 40D 0 L285

L303 12.14 — 16 -.22 .60 .65 31.10 .16 .10 1.87 1.08 40D 0 L30X L308 12.43 .13 .18 .04 .92 31.10 .16 .10 1.52 .88 40 D 0 L308

L3X 3 11.28 -1.02 -1.43 .58 .64 30.16 -.78 -.49 1.41 .81 40D 0 L3X3

L32X 11.10 -1.20 -1.69 1.58 1.72 27.90 -3.04 -1.93 1.78 1.02 40D e L32X L324 12.01 -.29 -.41 1.12 1.22 29.45 -1.49 -.94 2.07 1.19 40D 0 L324

L32 6 13.48 1.18 1.66 1.05 1.14 33.70 2.76 1.75 1.83 1.05 40D 0 L326

L32 8 12.45 .15 .21 .79 .86 31.86 .92 .58 1.59 .92 40D 0 L328

L339 87.40 75.10 105.55 6.62 7.21 37.90 6.96 4.41 4.31 2.48 40D ft L3 39

L344 12.00 -. 30 -.42 1.39 1.51 29.68 -1.26 -.80 1.61 .93 40D 0 L344

L37 6 12. 03 -.27 -. 38 .90 .98 30.71 -.23 -.15 1.75 1.01 40D 0 L376

L3 60 12.30 .00 .00 .82 .90 29.70 -1.24 -.79 1 .70 .98 40D 0 L3 80 L388 6.54 -5.76 -8.09 .62 .67 14.02 -16.92 -10.72 .98 .57 40D ft L388

L394 10.50 -1.80 -2.53 .85 .93 30.10 -.84 -.53 1.85 1.07 4 OD « L3 9A

L396M 13. 76 1.46 2.05 1.14 1.24 33.02 2.08 1.32 1.03 .59 40 D 0 L396M

L5 67 12.45 .15 .21 1.04 1.13 30. 56 -.38 -.24 2.00 1.15 40D 0 L567

L576 11 .97 -.33 -.46 .90 .98 30.68 -.26 -.16 3.26 1.88 40D 0 L576

L585 12.73 .43 .61 .86 .94 31.25 .31 .20 1.06 .61 40D 0 L585

L604 12.40 .10 .14 1.15 1.25 30.56 -.38 -.24 2.21 1.27 4 OD 0 L604

L6X 6 11.65 -.65 -.91 1.56 1.70 32.00 1.06 .67 .94 .54 40D 0 L6X 6 L65X 12.00 -.30 -.42 1.33 1.45 31.60 .66 .42 2.27 1.31 40D 0 L65X

L6 76 12.60 .30 .42 .86 .94 32.29 1.35 .86 2.47 1.42 4 OD 0 L676

GR. MEAN - 12.30 GURLEY UNITS GRAND MEAN - 30.94 GURLEY UNITS TEST DETERMINATIONS - 10

SD MEANS - .71 GURLEY UNITS SD QF MEANS - 1.58 GURLEY UNITS 50 LABS IN GRAND MBANS

AVERAGE SDR a

• V0 ro GURLEY UNITS AVERAGE SDR - 1.74 GURLEY UNITS

LX X 5 12.40 .10 . X4 .97 1.05 24.40 -6.54 -4.14 1.17 • 68 40U • LX X5 L29X 12.90 .60 • 64 1.37 1.49 31.40 .46 .29 .97 • 56 40U L29X L484 11.67 -.63 88 .49 .54 28.36 -2.58 -1.63 2.70 X • 56 4 OB L484 TOTAL NUMBER OF LABORATORIES REPORTING

Best values: J46 12.3 + 1.2 Gurley units

J48 31.0 + 2.7 Gurley units

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

388. 5
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T40-1 TABLE 2 AIR RESISTANCE, GURLBY UNITS (SECONDS/lOO CC)

TAPPI STANDARD T460 OS-75, AIR RESISTANCE OF PAPER

LAB MBANS COORDINATES AVG

CODE F J46 J48 MAJOR MINOR R. SDR VAR PR6FBRTY TEST INSTRUMENT CONDITIONS

L38 8 » 6.54 14.02 -17.87 -.18 .62 40 D AIR RESISTANCE, GURLEY DBNS0 METER OIL FLOTATION

L2i2 » 10.31 26.53 -4. 82 .41 .77 40D AIR RESISTANCE, GURLBY DBNS0METBR - OIL FLOTATION

L394 « 10.50 30.1 0 -1.39 1.42 1.00 40D AIR RESISTANCE, GURLEY DENS0METBR - OIL FLOTATION

L32i 6 11.10 27.90 -3.26 .12 1.37 40D AIR RESISTANCE, GURLEY DBNS0MBTBR - OIL FLOTATION

L242 « 11.13 31.36 .01 1.24 .71 40D AIR RESISTANCE, GURLBY DENS0METER - OIL FLOTATION

L31 3 0 11.26 30.16 -1.07 .70 .73 40 D AIR RESISTANCE, GURLBY DENS0METER _ OIL FLOTATION

L24i 0 11.30 27.40 -3.67 -.23 .65 40D AIR RESISTANCE, GURLEY DEN S 0MB TER - OIL FLOTATION U 82G 0 11.54 29.60 -1.52 .27 .86 40D AIR RESISTANCE, GURLEY DENS0MBTER - eiL FLOTATION

LJ24G 0 11.61 28.47 -2.56 -.17 .70 40 D AIR RESISTANCE, GURLEY DBNS0 METER - OIL FLOTATION

L6i 6 0 11.65 32.00 . 79 .96 1.12 40D AIR RESISTANCE, GURLEY DBNS0METBF * OIL FLOTATION

L4 84 11.67 28.36 -2.64 -.26 1.05 40 H AIR RESISTANCE, REC- MED -TYPE GURLEY DENS0ME TER -OIL FLOTATION

L262G X 11.69 25.79 -5.06 -1.13 .69 40 D AIR RESISTANCE, GURLBY DBNS0METER - OIL FLOTATION

L57 6 0 11.97 30.68 -.35 .22 1.43 40D AIR RESISTANCE, GURLBY DENS0MBTER - OIL FLOTATION

L344 0 12.00 29. 68 -1.29 -.14 1.22 40D AIR RESISTANCE, GURLBY DENS0MBTER - OIL FLOTATION

L65i 0 12.00 31.60 .52 .50 1.38 40D AIR RESISTANCE. GURLBY DENSO MB TER - OIL FLOTATION

L2 30G 0 12.00 30.60 -.42 .17 .88 40D AIR RESISTANCE, GURLBY DENS0METER OIL FLOTATION

L324 0 12.01 29.45 -1.50 -.22 1.21 40D AIR RESISTANCE, GURLBY DBNS0MBTER - OIL FLOTATION

L3 76 0 12. C3 30.71 -.31 . 1 8 .99 40D AIR RESISTANCE, GURLEY DBNS0METBR - OIL FLOTATION

L2 32 0 12.04 28. 90 -2.01 -.43 1.67 40 D AIR RESISTANCE, GURLBY DBNS0MBTER - OIL FLOTATION

Li 22 0 12.06 31.08 .05 .27 .81 40D AIR RESISTANCE, GURLEY DENS0MBTBR - OIL FLOTATION

L301 0 12.14 31.10 .10 .20 . 87 40D AIR RESISTANCE. GURLBY DENS0MBTBR OIL FLOTATION

L26 i 0 1 2.17 31 .20 .20 .21 .86 40D AIR RESISTANCE, GURLEY DENSOMBTER - OIL FLOTATION

L2 74 0 12.23 30. 14 -.78 -.20 .44 40 D AIR RESISTANCE, GURLBY DENS0METBR - OIL FLOTATION

Li 2 i 0 12.29 31.17 .21 .09 .83 40 D AIR RESISTANCE. GURLBY DENSOMETER - OIL FLOTATION

L380 0 12.30 29.70 -1.17 -.41 .94 40D AIR RESISTANCE, GURLEY DBNS0MBTBR - OIL FLOTATION

L285 0 12.34 33.28 2.22 .74 1.48 40 D AIR RESISTANCE. GURLBY DENSOMBTER _ OIL FLOTATION

Li 90 R 0 12.38 30.75 -.15 -.14 .77 40 D AI R RESISTANCE, GURLEY DBN S0METBR - OIL FLOTATION

L604 0 12.40 30.56 -.32 -.22 1.26 40D AIR RESISTANCE, GURLBY DENSOMETBR - OIL FLOTATION

Li i 5 12.40 24.40 -6.14 -2.26 .86 40U AIR RESISTANCE. SHEFFIELD IN GURLEY UNITS

L30Q 0 12.43 31.10 .20 -.07 .90 40D AIR RESISTANCE. GURLEY DENSOMBTER - OIL FLOTATION

L224 0 12.44 29.66 -1.16 -.56 1.34 40D AIR RESISTANCE. GURLEY DBNS0METER _ OIL FLOTATION

L278 0 12.44 31.27 .36 -.02 .93 40D AIR RESISTANCE. GURLEY DENSOMETBR - OIL FLOTATION

L5 67 0 12.45 30.56 -.31 -.27 1.14 40 D AIR RESISTANCE, GURLEY DENSOMBTER - OIL FLOTATION

L328 0 12.45 31 .86 .92 .16 .89 40D AIR RESISTANCE. GURLBY DENSOMBTER - OIL FLOTATION

L223 0 12.47 31.73 .80 .10 1.12 40 D AIR RESISTANCE, GURLBY DENSOMBTER - OIL FLOTATION

L265 0 12.50 30.00 -.82 -. 50 .66 40 D AI R RESISTANCE, GURLEY DENS0METER OIL FLOTATION

Li 25 0 12.50 31.66 .75 .05 .98 40 D AI R RESISTANCE. GURLEY DENSOMETBR - OIL FLOTATION

Li 07 0 12.52 31 .05 .18 -.17 1.12 40 D AIR RESISTANCE, GURLBY DENSOMBTER - OIL FLOTATION

L676 0 12.60 32.29 1.37 .16 1.18 40 D AIR RESISTANCE, GURLBY DBNS0METE R - OIL FLOTATION

Li 53 0 12.61 29.5 5 -1.21 -.75 .75 40D AIR RESISTANCE, GURLEY DBNS0METBR - OIL FLOTATION

Li 23 0 12.62 32.03 1.14 .06 1 .32 40D AI R RESISTANCE. GURLBY DENSOMBTER eiL FLOTATION

L2 54 0 12.67 32.32 1.43 .11 .85 40D AIR RESISTANCE, GURLEY DBNSOMETBR - OIL FLOTATION

L585 0 12.73 31.25 .44 -.30 .77 40 D AIR RESISTANCE, GURLBY DENSOMETBR - OIL FLOTATION

L236 0 1 2.77 32.35 1.49 .02 1.08 40 D AIR RESISTANCE, GURLBY DENSOMETBR - OIL FLOTATION

Li 4 8 0 12.78 29.98 -.75 -.77 1.16 40 D AIR RESISTANCE, GURLBY DENSOMBTER - OIL FLOTATION

LI 90C 0 12.79 30.30 -. 44 -.67 .90 40 D AIR RESISTANCE, GURLEY DBNSOMETBR OIL FLOTATION

L2 83 0 12.84 33.70 2.78 .41 .94 40D AIR RESISTANCE. GURLBY DENSOMBTER - OIL FLOTATION

L29i 12.90 31.40 .63 -.41 1.02 40U AI R RESISTANCE, SHEFFIELD IN GURLBY UNITS

L238A 0 12.98 31.90 1.13 -.32 .84 40 D AIR RESISTANCE, GURLBY DENSOMETER - OIL FLOTATION

Li 2 8 0 13.00 32.10 1.33 -.28 .71 40D AIR RESISTANCE, GURLEY DENSOMETBR - OIL FLOTATION

Li 41 0 13.19 32.30 1.58 -.39 .85 40D AIR RESISTANCE, GURLBY DBNSOMETBR _ OIL FLOTATION

LI 66 0 13.33 34. 2e 3.49 .14 1.01 40D AI R RESISTANCE, GURLBY DENSOMBTER - OIL FLOTATION

L32 6 0 13.48 33.70 3.00 -.20 1.10 40 D AIR RESISTANCE, GURLBY DENSOMETBR - OIL FLOTATION

L396M 0 13.76 33.02 2.45 -.69 .92 40 D AI R RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

LI 63 0 13.84 32.87 2.33 -. 81 1.08 40 D AIR RESISTANCE, GURLEY DENSOMETBR - OIL FLOTATION

L339 * 87.40 37.90 31.49 -68. 53 4.84 40 D AI R RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

GMEANS 12.30 30.94 1.00

95% ELLIPSE: 4.25 1.21 WITH GAMMA - 70 DEGREES
GURLEY

UNITS

RIR RESISTANCE. GURLEY

SAMPLE J46 = 12.3 GURLEY UNITS SAMPLE J48 =30.9 GURLEY UNITS

7
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T40-2 TABLE 1 AIR RESISTANCE, SHEFFIELD UNITS (CC/MIN) FOR 0.442 SQ. IN (3/4 IN. DIA ) ORIFICE

SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB SAMPLE

J46 PRINTING

86 GRAMS PEE SQUARE METER

SAMPLE

J48 PRINTING

106 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 14 234.6 12.3 .97 15.1 1.24 107.6 3.1 .53 2.9 .63 40S e LI 14

LI 21 235.5 13.2 1.04 17.1 1.40 110.0 5. 5 .95 4.7 1.04 40S e LI 21 L122S 222.4 .1 .01 15.5 1.27 114.1 9.6 1.65 4.7 1.02 40S e L122S

LI 24S 232.7 10.4 .82 15.5 1.27 102.0 -2.5 -.43 5.2 1.14 40S G L124S

LI 32 211.0 -11.3 -.89 15.4 1.27 101.2 -3.3 -. 57 6.9 1.51 4 OS e LI 32

LI 4 8 220.1 -2.2 -.17 15.7 1.29 105.8 1.3 .22 6.5 1 .43 AOS G LI 48

LS 50 240.3 18.0 1.41 12.3 1.01 107.0 2.5 .43 6. 8 1.49 AOS G LI 50 L173B 222.0 -.3 -.02 2.6 .21 101.5 -3.0 -.52 2.4 .53 40S 0 L173B

L190C 22 5.5 3.2 .25 8.3 . 68 107.0 2.5 .43 5.4 1.18 40S G L190C

L213 215.5 -6.8 -.53 15.0 1.23 106.7 2. 2 .38 3.6 .78 40 S 0 L213

L223 216.8 -5.5 -.43 12.1 1.00 92.7 -11.8 -2,03 2.5 .56 4 OS e L223

L226 251 .0 28.7 2.26 11.0 .91 160.2 55.7 9.60 4.6 1.00 40S 0 L228

L2 30S 215.7 -6.6 -.52 14.1 1.16 96.9 -7.6 • 1.31 4.1 .90 40S G L230S

L24X 238.5 16.2 1.27 5. 8 .48 102.5 -2.0 -.35 5.4 1.19 40S <? L241 L249 206.7 -15.6 -1.23 12.7 1.05 101.0 -3.5 -.60 5.2 1.15 AOS 0 L249

L255 231.0 8.7 .68 11.3 . 93 117.6 13.1 2.26 3.2 .71 AOS 8 L255

L2 57A 231.6 9.3 .73 9.3 .76 106.2 1.7 .29 4.7 1.03 AOS 8 L257A

L257B 231.5 9.2 .72 13.7 1.13 104.5 -.0 -.00 7.5 1 .65 40S 0 L257B

L257C 223.9 1.6 .13 8.1 .67 111.0 6.5 1.12 4.3 .95 AOS 8 L257C

L260 227.3 5.0 .39 7.5 . 62 104.7 .2 .03 3.4 .75 40S 8 L260

L262S 223.7 1.4 .11 6.9 .57 101.7 -2.8 -.48 4.5 .99 40S G L262S

L2 88 233.3 11.0 .86 10.2 . 84 105.8 1.3 .22 2.5 .55 40S G L288

L30X 219.5 -2.8 -.22 12.6 1.04 111.2 6.7 1.15 4.3 .94 40S e L301 L305 221 .0 -1.3 -.10 7.0 .57 106.5 2.0 .34 4.7 1.04 AOS e L305

L31 8 203.6 -18.7 -1.47 10.7 . 88 101.4 -3.1 -.53 5.4 1.19 AOS 0 L31 8 L352 21 6.0 -6.3 -.49 10.5 . 86 107.8 3.3 .57 4.6 1.02 AOS G L352

L354 246.1 23.8 1.87 9.0 . 74 114.1 9.6 1 .65 6.3 1.38 40S G L354

L360 213.5 -8.8 -.69 19.4 1.59 105.4 .9 .15 3.6 .79 AOS G L360

L36 6 194.5 -27.8 1 ro •

OD 14.6 1.20 96.8 -7.7 -1.33 2.7 .60 4 OS G L3 66 L372 224.6 2.3 .18 17.6 1.45 108.2 3.7 .64 4.8 1.07 40S G L372

L390 231 .0 8.7 .68 1 7.4 1.43 101.5 -3.0 -.52 4.1 .90 40S G L390

L562 233.2 10.9 .e6 14.1 1.16 106.9 2.4 .41 5.6 1.24 AOS G L562

L5 85 220.0 -2.3 -.18 12.7 1.04 98.0 -6.5 -1.12 2.6 .57 AOS G L585

L597 224.4 2.1 .17 11.9 .98 105.0 .5 .09 2.7 .59 40S G L597

L600 207.5 -14.8 -1.16 12.1 .99 94.1 -10.4 -1.79 6.8 1.50 40S G L600

L6 26 185.7 -36.6 -2.88 4.5 .37 93.2 -11.3 -1.95 3.4 .74 40S * L626

GR. MEAN - 222.3 SHEFF. UNITS GRAND MBAN - 104.5 SBEFF. UNITS TEST DETERMINATIONS * 10

SD MEANS • 12.7 SHEFF. UNITS AVERAGE SDR

SD GP MEANS - 12*2 SHBFF. UNITS

5.8 SBEFF. UNITS AVBRAGB SDR - 4.635 LABS IN GRAND

SHEFF. UNITS MEANS

LI 82 B 942.5 720.2 56. 59 68.8 5.65 394.0 289.5 49*88 19.0 4.17 40 B LI 62B L3X2 242.0 19.7 1.55 12.5 1.03 105.3 .8 • 14 4.1 .91 40T L312

L4 84 947.0 724.7 56.94 52.3 4. 30 366.0 261.

5

45.06 20.7 4.54 A 0 B LA 64 L587 224.0 1.7 .13 11.7 .96 108.0 3.5 • 60 4.8 1.06 40T L5 87 TOTAL NUMBER OF LABORATORIES REPORTING * 40

Best values: J46 223 + 17 Sheffield units

J48 105 + 10 Sheffield units

The following laboratories were omitted from the grand means because of extreme test results: 228.

8
REPORT NO. 560 TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T40-2 TABLB 2 AIR RESISTANCE, SHEFFIELD UNITS (CC/MIN) FOR 0.442 SO. IN <3/4 IN. DIA ) ORIFICB

SHEFFIELD TESTBR IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG CODE F J46 J48 MAJOR MINOR R. SDR VAB PBOPBBTY TEST INSTRUMENT CONDITIONS

L626 * l es.7 93.2 -38.3 .0 .56 40S AIB RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER OBIFICB

)

L3 66 0 194.5 96. 8 -28.8 .8 .90 40 S AIB RESISTANCE, SHEFFIELD (3/4 INCH DIAMBTER OBIFICB)

L31 8 0 203.6 101.4 -18.8 2.6 1.03 40 S AIB RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER OBIFICB

)

L249 0 206.7 101.0 -15.9 1.3 1.10 40 S AIB RESISTANCE, SHEFFIELD <3/4 INCH DIAMBTER OBIFICB

)

L600 0 207.5 94.1 -17.2 -5.6 1.25 40S AIB RESISTANCE, SHEFFIELD <3/4 INCH DIAMBTER OBIFICB

)

LI 32 0 211.0 101.2 -11.8 .2 1.39 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER OBIFICB

)

L3 60 0 213.5 105.4 -8.1 3.5 1.19 40 S AIB RESISTANCE. SHEFFIELD <3/4 INCH DIAMETER 0SIFICE

)

L21 3 0 215. 5 106. 7 -5.8 4.1 1.01 40S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETBR OBIFICB

)

L230S 0 215.7 96.9 -8.5 -5.3 1.03 40 S AIB RESISTANCE, SHEFFIELD <3/4 INCH DIAMBTER OBIFICB

)

L3S2 0 216.0 107.8 -5.0 5.0 .94 40 S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETBR OBIFICB

)

L22 3 0 216.8 92.7 -8.7 -9.7 .78 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMBTER OBIFICB)

L30S 0 219.5 111.2 -.7 7.2 .99 40 S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER OBIFICB

)

L585 0 220.0 98.0 -4.1 -5.5 .80 40 S AIR RESISTANCE, SHBFFIBLD < 3/4 INCH DIAMETER ORIFICE

)

LS 48 0 220.1 ICS.

8

-1.7 1.9 1.36 40 S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMBTER OBIFICB

)

L305 0 221.0 106.5 -.6 2.3 .81 40 S AIB RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER OBIFICB

)

LI 73B 0 222.0 101.5 -1.2 -2.8 .37 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMBTER OBIFICE

)

L122S 0 222. 4 114.1 2.9 9.1 1.15 40 S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER OBIFICB

)

L262S 0 223.7 101.7 .5 -3.1 .78 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETBR OBIFICB ) L257C 0 223.9 111.0 3.5 5.7 .81 40 S AIR RESISTANCE, SHBFFIBLD < 3/4 INCH DIAMBTER ORIFICE

)

L587 224.0 108.0 2.7 2.8 1.01 40 T AIR RESISTANCE, SHEFFIELD <3 INCH DIAMBTEH 0RIFICE

)

L597 0 224.4 105.0 2.2 -.1 .79 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER OBIFICB

)

L372 0 224.6 108.2 3.3 2.9 1.26 40 S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETBR OBIFICE ) L190C 0 225.5 107.0 3.8 1.4 .93 40 S AIR RESISTANCE, SHBFFIBLD <3/4 INCH DIAMETBR OBIFICE

)

L2 60 0 227.3 104.7 4.8 -1.3 .68 40 S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMBTEH OBIFICE

)

L390 0 231.0 101.5 7.4 -5.4 1.17 40 S AIR RESISTANCE. SHBFFIBLD (3/4 INCH DIAMBTER OBIFICE

)

L255 0 231.0 117. 6 12.2 9.9 .82 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER OBIFICE

)

L257B 0 231.5 104.5 8.8 -2.7 1.39 40 S AIR RESISTANCE, SHEFFIELD (3/4 INCH DIAMBTER ORIFICE

)

L2 57A 0 231.6 106.2 9.4 -1.1 .90 40 S AIB RESISTANCE. SHBFFIBLD <3/4 INCH DIAMBTER OBIFICE

)

L124S 0 232.7 102.0 9.2 -5.5 1.21 40 S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMBTER ORIFICE

)

L562 0 233.2 106.9 11.1 -.9 1.20 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETBR OBIFICE

)

L288 0 233.3 10 5. 8 10.9 -2.0 .69 40 S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER OBIFICE

)

LI 14 0 234.6 107. 6 12.7 -.7 .93 40 S AIR RESISTANCE, SHBFFIBLD <3/4 INCH DIAMETBR OBIFICB)

LI 21 e 235.5 110.0 14.2 1.4 1.22 40 S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETBR OBIFICE)

L241 0 238.5 102.5 14.9 -6.7 .83 40 S AIR RESISTANCE, SHBFFIBLD <3/4 INCH DIAMBTEH OBIFICB

)

LI 50 0 240.3 107.0 17.9 -2.9 1.25 40S AIB RESISTANCE, SHBFFIBLD <3/4 INCH DIAMETER OBIFICB

)

L312 242.0 1 05.3 19.1 -5.1 .97 40T AIR RESISTANCE, SHEFFIELD <3 INCH DIAMETBH OBIFICB ) L354 0 246.1 114.1 25.6 2.1 1.06 AOS AIR RESISTANCE, SHBFFIBLD (3/4 INCH DIAMETER ORIFICB

)

L228 * 251.0 160.2 43.9 44.7 .95 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETBR 0RIFICE

)

LI 82 B 942.5 394.0 773. 6 63.9 4.91 40 B AIR RESISTANCE. BENDTSBN, RG 150

L4 84 947.0 366.0 769.6 35.9 4.42 40 B AIR RESISTANCE, BENDTSEN, WG 150

GMEANS

:

222.3 104.5 1.00

95% ELLIPSE: 34.5 11.7 • ITH GAMMA -

I 7 DEGREES

9
SHEFF.

UNITS

30

100

1

10

120

130

140

AIR RESISTANCE. SHEFFIELD

SAMPLE J46 = 222. SHEFF. UN I TS SAMPLE J48 = 105- SHEFF. UNITS

170 180 190 200 210 220 230 240 250 260 270

SHEFF. UNITS

ID

SEC/10

CC

800

1200

1600

2000

2400

AIR RESISTANCE. GURLEY

SAMPLE E82 iiii = 1684. SEC/10 CC

HG FLOTATION

SAMPLE B47 = 1549. SEC/10 CC

i i i i ^ +.X.# NOT IN GRAND MEANS

CD ANALYSIS T41-1

LlJ _J

Q_

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- crCO

- © ©

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- o

o

® ©

o o

-

-

©

o

-

-

1 1 1 1 SAMPLE E82

1 1 1 1 800 1000 1400 1800 2200 2600

SEC/10 CC

12
KEPORT N0. 56G TAPPI COLLABORATI VB REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T44 - 1 TABLE 1 SMOOTHNESS. PARKER PRINTSURF

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 10 LAB J49 94 GRAMS PEE SQUARE MBTER J73 76 GRAMS PER SQUARE MBTER CODE MEAN DEV N. DEV SDR R. SDR MEAN DBV N. DEV SDR R.SDR VAR F LAB

LI 22 6 • 98 . 86 1.65 .06 .69 5.07 .58 1.42 .11 .89 44P a LI 22

LI 36 5. 87 -.25 -.48 .09 1.01 4.30 -.19 -.46 .13 1.07 44P a LI 36

LI 82 5 • 96 -.16 -.31 .09 .95 4.52 .03 .08 .16 1.32 44P a LI 82

LI 83 5.97 -.15 -.29 .07 .73 4.59 .10 .24 .10 .81 44P a LI 83 L22 3 5.89 -.23 -.44 .08 . 83 4.26 -.23 -.55 .13 1.03 44P a L223

L2 88 7.01 . 69 1.71 .12 1.30 5.11 .62 1.51 .09 .76 44P a L288

L31 7 6.01 -.11 -.22 .11 1.19 4.58 .09 .22 .13 1.07 44P a L31

L58 8 5.47 -.65 -1.26 .14 1.54 3.96 -.53 -1.29 .16 1.34 44P a L588

L669 5.94 -.18 -.35 .07 .76 4.01 -.48 -1.17 .09 ,.71 44P a L669

GR. MEAN - 6.12 MICRONS GRAND MEAN - 4.49 MICRONS TEST DETERMINATIONS - 1 < SD MEANS • .52 MICRONS SD OF MEANS - .41 MICRONS 9 LABS IN GRAND MEANS AVERAGE SDR • .09 MICRONS AVBRAGB SDR - .12 MICRONS

TOTAL NUMBER OF LABORATORIES REPORTING - 9 Best values: J49 6.0 microns

J73 4.5 microns

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T44-1 TABLE 2 SMOOTHNESS. PARKER PRINTSURF

LAB CODE F MEANS

J49 J73

caa RD I NATE S MAJOR MINOR

AVG

R. SDR VAR PBOPBRTY- --TEST INSTRUMENT CONDITIONS

L58 8 a 5.47 3.96 -.84 -.02 1.44 44 P SMOOTHNESS, PARKER PRINTSURF

LI 3 6 a 5.87 4.30 -.31 .00 1.04 44 P SMOOTHNESS, PARKER PRINTSURF

L223 a 5.89 4.26 -.32 -.04 .93 44 P SMOOTBNESS, PARKER PRINTSURF

L669 a 5.94 4.01 -.44 -.27 .74 44 P SMOOTHNESS, PARKER PRINTSURF

LI 82 a 5.96 4.52 -.11 .13 1.13 44P SMOOTHNESS, PARKER PRINTSURF

LI 83 a 5.97 4.59 -.06 .17 .77 44 P SMOOTHNESS, PARKER PRINTSURF

L31 7 a 6.01 4.58 -.03 .14 1.13 44P SMOOTBNESS, PARKER PRINTSURF

LI 22 a 6.98 5.07 1.03 -.06 .79 44 P SMOOTHNESS, PARKER PRINTSURF

L2 8 8 a 7.01 5.11 1.08 -.05 1.03 44 P SMOOTHNESS, PARKER PRINTSURF

GMEANSt : 6.12 95% 4.49

ELLIPSE: 2.13 .44

1.00 WITH GAMMA - 37 DEGREES

13
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSI

S

T45-1 TABLE 1 SMOOTHNESS, SHEFFIELD UNITS

SHEFFIELD TESTER IS STANDARD F0R THIS ANALYSIS

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 15 LAB J49 94 GEAMS PBS SQUARB METBR J73 76 GRAMS PER SQUARE METER

CODE MBAN DEV N. DEV SDK R. SDK MEAN DEV N. DEV SDR B. SDR VAR F LAB

LS 07 261 .7 -13.2 -1.24 9.6 1.37 99.7 12.7 1.69 7.7 1.48 45S 0 LI 07

LS 0 8 27S.3 -3.5 -.33 4.8 . 68 80.1 -6.9 -.91 2. 8 .54 45S e LI 08

LSI 4 285.4 10.5 .99 7.4 1.07 93.8 6.8 .91 7.1 1.37 45S 0 LI 14

Li 15 266.3 -8.5 -. 80 9.3 1.34 86.7 -.3 -.04 5.9 1.13 45S 0 LI 15

LI 21 273.7 -1.2 -.11 10.4 1.50 89.3 2.4 .32 5.3 1.02 45S 0 LI 21

LI 22 272.8 -2.1 -.19 11.7 1.67 85.5 -1.4 -.19 4.9 .94 45S 0 LI 22

Li 24 268.6 -6.3 -.59 5.7 .82 84.5 -2.5 -.33 4. 1 .79 45S 0 LI 24

Li 25 269.0 -5.9 -.55 8.7 1.25 93.7 6.7 .89 11.1 2.14 45S 0 LI 25

LS 26 283.8 8.9 .84 11.4 1.63 90.7 3.7 .49 7.2 1.39 45S 0 LI 26

Li 28 271 .0 -3.9 -.36 5.4 .78 93.0 6.0 . 80 4.6 .88 45S 0 LI 28

LI 32 275.7 .9 .08 5.3 .77 82.2 -4.8 -.63 6.7 1.29 45S 0 LI 32

LS 39S 274.0 -.9 -.08 9.1 1. 31 SOO.O 13.0 1.73 5.3 1.03 45S 6 L139S

LS 4 8 279.3 4.4 .41 7.1 1.01 87.3 .3 o 04 4.9 .95 45S 0 LI 48

LS 50 289.5 14.7 1.38 8.8 1.26 80.5 -6. 5 -.86 5.2 .99 45S 0 LI 50

Li 52 252.4 -22.5 -2.11 4.5 . 65 97.5 10.5 1.39 5.5 1.07 45S * LI 52

LI 53 303.5 28.6 2. 68 7.1 1.03 109.8 22. 8 3.03 4.0 .77 45S X LI 53

LS 62 273.3 -1.5 -.14 9.8 1.40 87.3 . 4 .05 6.2 1.20 45S 0 LI 62

LS 66 263.3 -11.6 -1.09 7.7 1.11 84.3 -2.7 -.36 4.2 .81 45S 0 LI 66

LS 67 270.3 -4.5 -. 43 4.0 .57 81 .3 -5.6 -.75 2.3 .44 45S 0 LI 67

LS 73B 254.3 -20.5 -1.93 4.2 . 60 88.0 1.0 .14 2.5 .49 45S 0 L173B

LS 83 S 270.7 -4.2 -. 39 5.4 .78 92.5 5. 5 .73 8.7 1.68 45S 0 LI 83S

LS 90C 263.3 -11 .

5

-1.08 6.2 . 89 88.0 1.0 .14 5.3 1.02 45S 0 LI 90C

LS 90R 258.

S

-16.7 -1.57 6.2 .89 74.7 -12.3 -1.63 2.4 .46 45S 0 L190R

LS 95 275.4 .5 .05 7.1 1.03 74.5 -12.5 -1 .66 5.9 1.14 45S 0 LI 95 L203 279.3 4.5 .42 7.5 1.08 80.3 -6.7 -.89 6.2 1.20 45S 0 L203

L206 269.3 -5.6 -.53 4.0 .57 91.1 4. 1 .55 4.7 .92 45S 0 L206

L2SS 266.1 -8.8 -.e3 8.6 1.23 78.2 -8. 6 -1.16 5.9 1.13 45S 0 L211

L2S 3 251 .1 -23.8 -2.23 7.2 1.03 81 .3 -5.6 -.75 10.1 1.95 45S 0 L213

L223 272.1 -2.8 -.26 9.0 1.29 76.1 -10. 8 -1.44 3. 5 .68 45S 0 L223

L22 4 291 .9 1 7.0 1 . 59 6.3 .90 97.2 10.2 1.36 4. 8 .93 45S 0 L224

L226B 269.8 -5. 1 -.48 4.9 .71 77.8 -9.2 -1.21 5.6 1 .08 45S 0 L226B

L228 285.2 10.3 .97 11.9 1.71 96.9 9.9 1.32 4.4 .84 45S 0 L228

L230S 280.0 5.1 .48 5.9 . 84 82.6 -4.4 -.58 6.5 1.25 45S 0 L230S

L23S 289. S 14.3 1.34 8.7 1.26 88.6 1.6 .22 4.4 .85 45S 0 L231 L232S 293.3 18.5 1.73 6.5 .93 87.7 .7 .09 5.3 1.02 45S 0 L2 32S L237 276.0 1 .1 .11 6.0 .87 85.3 -1.6 -.22 4. 8 .93 45S 0 L237

L24S 290.7 15.8 1.48 8.6 1.24 124.3 37.4 4.96 12.9 2.50 45S X L241 L249 28S.1 6.3 .59 7.8 1.12 86.3 -.7 -.09 3.6 .70 45S 0 L249 L254 277.6 2.7 .26 4.4 .63 91 .4 4.4 .59 6.5 1.25 45S 0 L254

L2 5 5 273.1 -1.8 -.17 3. 8 .54 100.7 13.7 1.82 2.5 .48 45S 0 L255

L2 57A 270.0 -4.9 -.46 6.5 .93 78.1 -8. 8 -1.17 4. 8 .93 45S 0 L257A

L2 57B 272.9 -1.9 -.18 8. 6 1.23 103.8 16.8 2.23 7.8 1.51 45S 0 L257B

L257C 272.7 -2.1 -.20 9.1 1 . 31 102.0 15.0 2.00 5.3 1.02 45S 0 L2 57C

L2 60 269.7 -5.1 -.48 6. 0 . 86 84.2 -2. 8 -.37 3.9 .74 45S 0 L260

L26S 279.7 4.8 .45 4. 8 .69 83.0 -4.0 -.52 3.9 .74 45S 0 L261 L262 276.5 1 .7 .16 5. 1 .73 99.2 12.2 1.62 4.7 .90 45S 0 L262

L275 272.7 -2.2 -.21 9.7 1.40 82.5 -4.4 -.59 4.8 .93 45S 0 L275

L277 283.1 8.2 .77 7.5 1. 07 94.5 7.6 1.01 4. 7 .92 45S 0 L277

L2 7 8 295.3 20.5 1.92 6.1 .88 90.7 3.8 .50 5.2 1.01 45S 0 L278

L28S 274.4 -.5 -. 04 4.9 .71 84.7 -2. 3 -.30 6.4 1 .24 45S 0 L281 L285 269.2 -5.7 -.53 5.7 .83 81 .4 -5.6 -.74 3.9 .74 45S 0 L285

L288 278.1 3.3 .31 5.3 .76 88.0 1.0 .14 4.1 . 80 45S 0 L288

L290 281 .9 7.1 .66 6.4 .92 73.9 -13.0 -1.73 7.0 1.34 45S 0 L290

L29S S 280.1 5.3 .49 3.0 . 44 93.7 6. 7 .89 3.7 .72 45S 0 L291 S L30S 248.5 -26.3 -2.47 4.0 . 58 90.5 3. 6 .47 4.9 .95 45S * L301 L305 273.0 -1 .9 -.18 6.2 .89 e2.3 -4.6 -.61 3.7 .72 45S 0 L305

L308 271.9 -2.9 -.28 7.5 1.08 79.9 -7. 1 -.94 3.3 .63 45S 0 L308

L3S 2 297.5 22.6 2.12 6.3 .90 93.9 6.9 .92 3.4 .66 45S 0 L312

L3S 7 273.9 -1.0 -.09 8.2 1.18 78.8 -8.2 -1.08 5.2 1.00 45S 0 L31 7 L31 8 271.9 -3.0 -.28 9.5 1.37 92.5 5.5 .73 9.7 1.87 45S 0 L318

L32S 260.0 -14.9 -1.40 .0 .00 70.7 -16.3 -2.16 1.8 .34 45S 0 L321 L323 275.3 .5 .04 7.4 1.07 90.5 3. 6 .47 6.6 1.28 45S 0 L323

L32 6 304.3 29.5 2.76 4.0 . 58 87.2 . 2 .03 4.4 .85 45S « L326

L328 278.7 3.8 .36 4.6 .67 85.6 -1.4 -.18 4. 9 .94 45S 0 L328

L352 275.7 .9 .08 5.9 . 85 92.7 5. 8 .77 7.0 1.35 45S 0 L352

14
REPORT NO

LAB

. S6G

SAMPLE

J 49 94 GRAMS

TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T4S-1 TABLE 1 SMOOTBNBSS. SHEFFIELD UNITS SBBFFIBLD TESTER IS STANDARD FOR TBIS ANALYSIS

PRINTING SAMPLB PRINTING

PER SQUARE MBTBR J73 76 GRAMS PER SQUARE MBTBR

NOVEMBER 1978

TEST D. • 15 CODB MEAN DEV N.DBV SDR R. SDR MEAN DBV N.DBV SDR R. SDR VAR F LAB

L360 276.4 1.5 .14 8.7 1.25 86.5 -.4 -.06 3.1 .61 45S 6 L360

L366 270.9 -4.0 -.38 8.5 1.22 91.7 4.8 .63 7.6 1.46 45S 6 L366

L372 276.0 1.1 .11 6.3 .90 81.7 -5.3 -.70 4.8 .93 45S 0 L372

L376 273.3 -1.5 -.14 7.9 1.13 98.7 11.8 1.56 6.7 1.30 45 S 0 L376

L360 264.0 -10.9 -1.02 8.7 1.25 79.9 -7.1 -.94 2.6 .49 45S 0 L380

L3 02 294.3 19.5 1.83 5.1 .73 80.5 -6.5 -.86 3.8 .73 45S 0 L382

L390 276.7 1.8 .17 8.2 1.17 84.3 -2.6 -.35 5.0 .96 45S 0 L390

L396M 265.0 10..95 6.8 .98 91.0 4.0 .54 6.0 1.16 45S 0 L396M

L554 281.7 6.9 .64 3.4 .49 82.4 -4.6 -.60 3.5 .68 45S 0 L554

L567 258.4 -16.5 -1.55 10.6 1.52 83.0 -4.0 -.52 5.9 1.13 45S 0 L567

L585 268.0 -6.9 -.64 10.7 1.53 70.3 -16.6 • 2.21 4.8 .93 45S 0 L585

L587 268.0 -6.9 -.64 7.5 1.08 91.0 4.0 .54 4.7 .91 45S 0 L5 87 L597 303.7 28.9 2.71 7.1 1.03 93.0 6.0 .80 7.7 1.49 45S « L597

L600 281 .8 6.9 .65 6.1 .88 86.3 -.7 -.09 6.6 1.27 45S 0 L600

L62 6 268.6 -6.2 -.58 4.4 . 63 75.4 -11.6 -1.53 2.2 .42 45S 0 L626

L64 8 273.7 -1.2 -.11 10.0 1.43 79.1 -7.8 • 1.04 5.8 1.13 45S 0 L648

L651 235.3 -39.6 -3.72 3.5 .50 91.7 4.7 .63 6.6 1.27 45S X L651 L670 282.4 7.5 .71 8.0 1.15 89.5 2.6 .34 7.1 1.37 45S 0 L670

L679 276.0 1.1 .11 3.3 .47 98.3 11.4 1.51 4.2 . 80 45S 0 L679

GR. MEAN • 274.9 SHBFF • UNITS GRAND MEAN . 87.0 SHBFF* UNIT9 TBST DETERMINATIONS - 15

SD MEANS " 10.7 SHBFF • UNITS AVERAGE SDR

SD OF MEANS •

- 7.0 SHBFF. UNITS

7.5 SHBFF. UNITS AVERAGB SDR - 5.2

81 LABS IN GRAND

SHBFF. UNITS MEANS

TOTAL NUMBER OF LABORATORIES REPORTING • 84

Best values: J49 275 + 20 Sheffield units

J73 87 + 13 Sheffield units

15
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1970 ANALYSIS T45-1 TABLB 2 SMOOTHNESS, SHEFFIELE UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB KEANS COORDINATES AVG

CODE F J49 J 73 MAJOR MINOR R. SDR VAR PE0PEHTY- - -TEST INSTRUMENT

L65i X 235.3 91*7 -37.6 13.3 .89 45 S SM00THNBSS, SBBFFIBLD

L30I o 248.5 90.5 -24. 9 9.3 .76 45 S SM001BNESS. SBEFFIELD

L2i 3 6 251.1 61.3 -24.5 -.2 1.49 45 S SM00TBNESS. SBBFFIBLD

LI 52 « 252. 4 97.5 -19.6 15.2 .86 45 S SM001HNBSS, SBBFFIELD

Li 73B 0 254.3 88.0 -19.8 5.5 .54 45S SM00TBNBSS , SBBFFIBLD

L190R 0 2 58. 1 74.7 -19.0 -8.3 .68 45S SMOOTHNESS, SBBFFIBLD

L567 0 258.4 83.0 -16.9 -.2 1.33 45 S SMOOTHNESS. SBEFFIELD

L32i 0 260.0 70.7 -18.1 -12.6 .17 45 S SM001BNESS, SBBFFIELD

Li 07 0 261.7 99.7 -10.1 15.3 1.43 45S SMOOTHNESS. SHEFFIELD

Li 66 0 263.3 84.3 -11.9 -.1 .96 45 S SMOOTBNBSS, SBEFFIELD

L190C 0 263.3 e8.o -11.0 3.6 .95 45S SMOOTHNESS, SBEFFIBLD

L3 80 0 264.0 79. 9 -12.2 -4.5 .87 45S SMOOTBNBSS, SBBFFIBLD

L2i i 0 266.1 78.2 -10.5 -6.6 1.18 45S smoothness. SBEFFIBLD

Lii5 0 266.3 86.7 -8.4 1.6 1.24 45S SMO0TBNBSS, SBEFFIBLD

L587 0 268. 0 91.0 -5.8 5.5 .99 45S SMOOTHNESS, SBBFFIBLD

L5 85 0 268.0 70.3 -10.4 -14.7 1.23 45S SMOOTHNESS, SBEFFIBLD

Li 24 0 268.6 84.5 -6.7 -1 .0 .81 45 S SMOOTBNBSS, SBEFFIBLD

L626 0 268.6 75.4 -8.6 -9.9 .52 45S SMO0TBNESS, SBEFFIBLD

Li 25 0 2 69.0 93.7 -4.2 7.8 1.70 45S SMOOTHNESS, SBBFFIBLD

L285 0 269.2 81.4 -6.8 -4.2 .78 45S SMOOTBNBSS, SBBFFIBLD

L206 0 269. 3 91.1 -4.6 5.2 .74 45S SMOOTHNESS, SBEFFIBLD

L260 0 269.7 84.2 -5.6 -1 .6 .80 45 S SMOOTBNBSS, SBBFFIBLD

L226B 0 269. 8 77.8 -7.0 -7.8 .89 45 S SMOOTHNESS, SBBFFIBLD

L2 57A 0 270.0 78.1 -6.7 -7.5 .93 45 S SMOOTBNBSS, SBEFFIELD

Li 67 0 270.3 81.3 -5.7 -4.5 .51 45S SMOOTBNESS. SBBFFIELD

Li 83S 0 270.7 92.5 -2.9 6.3 1.23 45S SMOOTBNESS, SBEFFIBLD

L366 0 270.9 91.7 -2.9 5.5 1.34 45S SMOOTBNBSS, SHEFFIELD

Li 28 0 271.0 93.0 -2.4 6.7 .83 45S SMOOTBNBSS, SBBFFIBLD

Li 0 8 0 271.3 80.1 -5.0 -5.9 .61 45 S SMOOTBNBSS, SBEFFIBLD

L3i 8 0 271.9 92. 5 -1.7 6.0 1.62 45S SMOOTBNBSS, SBEFFIBLD

L308 0 271.9 79.9 -4.4 -6. 3 .85 45S SMOOTBNBSS, SBEFFIBLD

L223 0 272.1 76.1 -S.l -9.9 .98 45 S SMOOTBNBSS, SBBFFIBLD

L27 5 0 272.7 e2.5 -3.1 -3. 8 1.16 45 S SMOOTBNESS, SBEFFIELD

L257C 0 272. 7 102.0 1.2 15.1 1.16 45S SMOOTBNBSS, SBBFFIELD

Li 22 0 272. 8 85.5 -2.3 -.9 1.31 45S SMOOTBNBSS, SBEFFIBLD

L257B 0 272.9 103. 8 1.8 16.9 1.37 45S SMOOTBNESS, SBEFFIBLD

L305 0 273.0 82.3 -2.8 -4.1 .80 45 S SMOOTHNBSS, SBBFFIBLD

L2 55 0 273.1 100.7 1 .3 13.8 .51 45S SMOOTBNESS, SBBFFIBLD

LI 62 0 273.3 87.3 -1.4 .7 1.30 45S SMOOTBNBSS, SBBFFIBLD

L37 6 0 273.3 98.7 1.1 11.8 1.22 45S SMOOTHNESS, SBEFFIBLD

L64 8 0 273.7 79.1 -2.9 -7.4 1.28 45S SMOOTHNESS. SBEFFIBLD

Li2i 0 273.7 89.3 -.7 2.6 1.26 45S SMOOTBNESS. SBEFFIELD

L3i 7 0 273.9 78. 8 -2.8 -7.7 1.09 45S SMOOTBNESS, SBBFFIBLD

Li 39

S

0 274.0 100.0 2.0 12.9 1.17 45S SMOOTBNESS, SBBFFIBLD

L28i 0 274. 4 84.7 -1 .0 -2.1 .98 45S SMOOTBNBSS, SBEFFIBLD

L323 0 275.3 90.5 1.2 3.4 1.17 45S SMOOTBNESS, SBBFFIBLD

Li 95 0 275.4 74.5 -2.2 -12.3 1.08 45S SMOOTBNESS, SBEFFIBLD

Li 32 0 275.7 82.2 -.2 -4.8 1.03 45 S SMOOTBNBSS. SBBFFIBLD

L352 0 275.7 92.7 2.1 5.4 1.10 45S SMOOTHNBSS, SBBFFIELD

L679 0 276.0 98.3 3. 6 10.9 .63 45 S SMOOTBNBSS. SBBFFIELD

L372 0 276.0 81.7 -.1 -5.4 .92 45S SMOOTHNBSS. SBEFFIBLD

L237 0 276.0 85.3 .7 -1.8 .90 45S SMOOTHNBSS, SBBFFIBLD

L360 0 276.4 86. 5 1.4 -.7 .93 45S SMOOTHNBSS. SBEFFIBLD

L2 62 0 276. 5 99.2 4.3 11.6 .81 45 S SMOOTHNBSS, SBEFFIBLD

L390 0 276.7 84.3 1 .2 -3.0 1.06 45S SMOOTBNBSS , SBBFFIELD

L254 0 277.6 91.4 3.6 3.7 .94 45S SMO0THNBSS, SBEFFIBLD

L288 0 278.1 88.0 3.4 .3 .78 45S SMOOTBNBSS, SBBFFIBLD

L32 8 0 278.7 85.6 3.5 -2.2 .81 45 S SMOOTBNESS, SBEFFIBLD

Li 48 0 279.3 87.3 4.4 -.7 .98 45S SMOOTBNBSS, SBBFFIBLD

L203 0 279.3 80.3 2.9 -7. 5 1.14 45 S SMOOTHNESS, SBEFFIELD

L261 0 279.7 83. 0 3.8 -4.9 .72 45S SMOOTHNESS, SBEFFIELD

L230S 0 280.0 82.6 4.0 -5.4 1.05 45 S SMOOTBNBSS, SBBFFIBLD

L29i S 0 280.1 93.7 6.6 5.4 .58 45S SMOOTBNBSS, SBEFFIELD

L249 0 281.1 86.3 6.0 -2.1 .91 45 S SMOOTBNBSS, SBEFFIELD

L554 0 281.7 82.4 5.7 -6.0 .58 45S SMOOTHNBSS

,

SBEFFIBLD

-CONDITIONS

16
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS 145 -1 TABLE 2 SMOOTHNESS. SHEFFIELD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG C0DB F J49 J73 MAJOR MINOR R. SDR VAR PROPBFTY- --TEST INSTRUMENT

L600 0 2 61.8 86.3 6.6 -2.2 1.08 45 S SMO OTB NESS. SHEFFIELD

L2 90 0 281.9 73.9 4.0 -14.3 1.13 45S SMOOTHNESS, SBBFFIBLD

L670 0 282. 4 89.5 7.9 .9 1.26 45S SMOOTHNESS, SHEFFIELD

L277 0 283.1 94.5 9.7 5.6 1.00 45 S SMOOTHNESS, SHEFFIELD

LI 26 0 283.8 90.7 9.5 1 .7 1.51 45S SMOOTHNESS, SHEFFIELD

L396M 0 2 85.0 91 .0 10.8 1.7 1.07 45 S SMOOTHNESS, SHEFFIELD

L22 8 0 285.2 96.9 12.3 7.4 1.27 45S SMOOTHNESS, SHEFFIELD

LI I 4 0 2es.4 93.8 11.8 4.4 1.22 45S SMOOTHNESS, SHEFFIELD

L231 0 289.1 88.6 14.3 -1.5 1.05 45 S SMOOTHNESS, SHEFFIELD

LI 50 0 289.5 80.5 12.9 -9.5 1.13 45 S SMOOTBNBSS, SBEFFIBLD

L241 X 290.7 124.3 23.6 33.0 1.87 45S SMOOTHNESS. SHEFFIELD

L22 4 0 291.9 97.2 18.8 6.3 .91 45 S SMOOTBNBSS, SHEFFIELD

L232S 0 293.3 87.7 18.2 -3.4 .97 45S SMOOTBNBSS, SBBFFIBLD

L382 0 294.3 80.5 17.6 -10.6 .73 45 S SMOOTHNESS, SBEFFIBLD

L278 0 295.3 90.7 20.8 -.8 .94 45S SMOOTHNESS, SHEFFIELD

L312 0 297.5 93.9 23.6 1.8 .78 45S SMOOTHNESS, SHEFFIELD

LI 53 X 303.5 109.8 32.9 16.0 .90 45S SMOOTHNESS, SHBFFIBLD

L597 * 303.7 93.0 29.5 -.5 1.26 45S SMOOTHNESS, SBEFFIBLD

L326 « 304.3 87.2 28.8 -6.2 .71 45S SMOOTHNESS, SHEFFIELD

GMEANS

2 74.9 87.0 1.00 95* ELLIPSE: 27.1 18.4 RITH GAMMA *12 EEGREES

-CONDITIONS

17
SHEFF.

UNITS

SM00THNESS . SHEFFIELD

SAMPLE J49 = 275. SHEFF. UNITS SAMPLE J73 = 87. SHEFF. UNITS

IS
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T45-2 TABLB 1 SMOOTHNESS , BEKK SECONDS

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

LAB SAMPLE

J49 94 GE AMS PRINTING

l PER SQUARE METER SAMPLE

J73 76 GRAMS

PRINTING

PBR SQUARE METER TEST D. 15 CODE MEAN DEV N. DEV SDB B. SDB MEAN DEV N . DEV SDB B. SDB VAR F LAB L139B 11 .00 1.06 1.76 .85 1.50 8C.60 14.52 .99 7.36 1.28 45K 0 L139B

LI 62 4.93 -5.01 -8.29 .12 .22 97.47 31.39 2.15 7.63 1 .33 45K 0 LI 62

LI 829.31 -.63 -1.04 .76 1.35 61.87 -4.21 -.29 5.93 1.03 45K 0 LI 82K L190C 10.36 .42 .70 .41 .72 79.00 12.92 .88 10.39 1.81 45K 0 LI 90C L212 9.10 -.84 -1.39 .24 .43 44.53 -21.55 1.47 3.00 .52 45K 0 L212 L230B 9.67 -.27 -.45 .72 1.28 77.60 11.52 .79 4.72 .82 45K 0 L230B

L2 32B 10. C9 .16 .26 .55 .97 65.36 -.72 -.05 7.52 1.31 45K 0 L232B

L274K 9.83 -.10 -.17 .34 . 60 45.27 -20.81 1.42 1 .53 .27 45K 0 L274K

L291 K 13.19 3.25 5.38 .96 1.70 91.66 25.58 1.75 8.83 1.54 45K 0 L291K

L5 81 10.13 .20 .33 .64 1.13 74.40 8.32 .57 5.50 .96 45K 0 L581

GR. MEAN

SD MEANS

9.94

- . 60 BEKK SECONDS

BEKK SECONDS AVERAGE SDR - .56

GRAND MEAN - SD flF MEANS * BEKK SBCflNDS

66.08

14.62

BEKK SBC0NDS

BEKK SECONDS AVERAGE SDR - 5.74

TEST DETERMINATIONS • 15

8 LABS IN GRAND MEANS

BEKK SECONDS L250M 10.36 .42 .70 .75 1.32 64.00 -2.08 -.14 6.21 1.08 4 5L L250M

L251 9.19 -.75 -1.24 .49 .86 66.76 .68 .05 4.38 .76 45L L251 L274H 37.12 27.18 45.01 .87 TOTAL NUMBER OF LABORATORIES REPORTING • 1.54

13 62.54 -3.54 -.24 1.58 .27 45H L274H

Best values: J49 10 Bekk seconds

J73 66 Bekk seconds

The following laboratories were omitted from the grand means because of extreme test results: 162, 291K.

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T45-2 TABLE 2 SMOOTHNESS , BEKK SECONDS

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

LAB CODE F MEANS

J49 J 73 COORDINATESMAJOR MINOR AVG

B. SDB VAR PROPERTY- --TEST INSTRUMENT CONDITIONS

LI 62 ft 4.93 97.47 31.23 5. 89 .77 45 K SMOOTHNESS, BEKK L212 0 9.10 44.53 -21.56 .23 . 48 45 K SMOOTHNESS, BEKK

L251 9.1 9 66.76 .66 .77 .81 45L SMOOTHNESS, BEKK, 20 C, 65% RH

LI 82K 0 9.31 61 .87 -4.23 .51 1.19 45 K SMOOTHNBSS, BEKK L230B 0 9.67 77.60 11.51 . 59 1.05 45K SMOOTBNESS, BEKK L274K 0 9.83 45.27 -20.81 -.48 .43 45 K SMOOTHNESS, BEKK L232B 0 1 0.09 65.36 -.71 -.18 1.14 45K SMOOTBNESS, BEKK

L58! 0 10.13 74.4 0 8.32 .04 1 .05 45 K SMOOTHNESS, BEKK L190C 0 10.36 79.00 12.93 -.06 1.27 45 K SMOOTHNESS, BEKK

L2 50M 10.36 64.00 -2.07 -.48 1.20 45L SMOOTHNESS, BEKK, 20 C, 65% PH

LI 39B 0 11.00 80.60 14.55 -.65 1.39 45 K SMOOTHNESS, EEKK

L291 K ft 13.19 91 .66 25.66 -2.53 1.62 45 K SMOOTHNESS, BEKK L274H 37.12 62.54 -2.77 -27.27 .91 45 H SMOOTHNBSS, GURLEY OIL FLOTATION

GMEANS

9.94

95 * : 66.08ELLIPSE

50.66 1.53

1.00 WITH GAMMA 88 DEGREES

19
«

REPORT N6. 56G TAPP I COLLABORATIVE REFERENCE PROGRAM NOVEMBBR 1978 ANALYSIS T47-I TABLE I SMOOTHNESS, BENDTSEN

SAMPLE PRINTING SAMPLE PRINTING TBST D. • 10 LAB J49 94 GRAMS PER 1SQUARE METER J73 76 GRAMS PER SQUARE METER

C0DB MEAN DEV N.DEV SDR R. SDR MEAN DBV N .DBV SDR R. SDR VAS F LAB

Li 82 B 463.0 -2.8 -.15 37.5 1.12 119.9 15.6 1.40 7.7 .93 47B 0 L182B

L2 36 499.0 33.2 1.74 67.9 2. 03 114.5 10.2 .91 9.4 1.15 47B 0 L236

L242 461 .0 -4.8 -.25 34.8 1.04 92.3 -12.0 1.08 8.0 .97 47B 0 L242

L24 4 480.5 14.7 .77 19.2 .57 93.5 -10.8 -.97 9.9 1.20 47B 0 L244

L2 4 0 437.2 -28.6 -1.50 46.1 1.38 90.3 -14.0 1.26 9.5 1.15 47B 0 L248

L31 3 473.0 7.2 . 38 28.7 . 86 104.5 .2 .02 11.7 1.41 47B 0 L313

L333 465.0 -.6 -.04 27.1 .81 110.8 6.5 .58 5.2 .63 47B 0 L333

L4 84 448.0 -17.8 -.94 6.3 .19 108.8 4.5 .40 4.6 .55 47B 0 L4 84

GR. MEAN • 465.8 ML/MI

N

GRAND MEAN 104.3 ML/MIN TBST DETERMINATIONS - 10 SD MEANS - 19.0 ML/MIN SD OF MEANS - 11.1 ML/MIN 8 LABS IN GRAND MEANS AVERAGE SDR - 33.4 ML/MIN AVERAGE SDR • 8.2 ML/MIN

TOTAL NUMBER OF LABORATORIES REPORTING 8 Best values: J49 465 milliliter per minute

J73 105 milliliter per minute

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T47-1 TABLE 2 SMOOTHNESS, BENDTSEN

LAB

CODE F MEANS

J49 J73 COORDINATES

MAJOR MINOR AVGR. SDR VAR PBOPBRTY- --TEST INSTRUMENT CONDITIONS

L2 48 0 437.2 90.3 -31.4 -5.7 1.27 47B SMOOTBNBSS, BENDTSEN, WG ISO

L4 84 0 448.0 108.8 -16.0 9.1 .37 47 B SMCCTBNBSS. BE NDTSBN, WG 150

L2 4 2 0 461.0 92. 3 -7.9 -10.3 1.01 47 B SM0OTBNBSS

,

BENDTSEN, WG 150

LI 82B 0 463.0 119.9 1.5 15.8 1.03 47 B SMOOT BNBSS, BENDTSBN, WG 150

L33 3 0 465.0 110.8 .9 6.5 .72 47 B SMOOTBNESS, BENDTSBN, WG 150

L31 3 0 473.0 104. 5 6.9 -1.8 1.14 47 B SMOOTBNBSS, BENDTSBN, WG 1 50 L244 0 480.5 93.5 11.2 -14.4 .89 47 B SMOOTBNESS, BBNDTSBN, WG 150

L2 36 0 499.0 114.5 34.7 .8 1.59 47 B SMOOTBNBSS. BENDTSEN, WG 150

GMEANS : 465. 8 95% : 104.3

ELLIPSE: 67.8 35.2 1.00 WITH GAMMA -15 DEGREES

20
REPORT NO. S6G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T56-1 TABLE 1 Kan ink absorption

NOVEMBER 1970

SAMPLE PRINTING SAMPLB C6ATED OFFSET BOOK TEST D. - 4 LAB H59 106 GRAMS PER SQUARE METER B80 75 GRAMS PER SQUARE METBR CODE MEAN DEV N.DBV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI 26 58.70 -5.05 -.90 .20 .46 22.87 -1.66 -.59 .49 .87 56K 0 LI 26

LS 49 56.00 -7.75 -1.38 .00 .00 20.00 -4.53 -1.62 .82 1.45 56K 6 LI 49

LI 02 63.70 -.05 -.01 .57 1.30 26.17 1.64 .59 .50 .89 56K 0 LI 82 L21 3 66.82 3.08 .55 .61 1.38 27.75 3.22 1.15 .13 .23 56K 0 L213

L277 70.00 6.25 1.12 .00 .00 27.50 2.97 1.06 .58 1.02 56K 0 L277

L291 66.80 3.05 .54 .45 1.04 22.57 -1.96 -.70 1.19 2.10 56K 0 L291

L33 3 57.70 -6.05 -1.08 .29 .67 23.27 -1.26 -.45 .90 1.59 56K 6 L333

L33 9 72.00 8.25 1.47 .41 .93 27.62 3.09 1.11 .48 .85 56K 6 L3 39

L61 6 62.00 -1.75 -.31 1.41 3.22 23.00 -1.53 -.55 .00 .00 56K 0 L616

GR. MEAN - 63.75 K A N UNITS GRAND MEAN - 24.53 K A N UNITS TEST DETERMINATIONS • SD MEANS - 5. 60 K A N UNITS SD 6F MEANS • 2.79 K A N UNITS 9 LABS IN GRAND MEANS

AVERAGE SDR • .44 KAN UNITS AVERAGE SDR - .56 K A N UNITS

L643 54.25 -9.50 -1.70 .96 2.18 21.25 -3.28 -1.17 .96 1 .70 560 L643

L651 31.45 -32.30 -5.76 .66 1.49 53.80 29.27 10.47 .57 1.01 560 L651 TOTAL NUMBER OF LABORATORIES REPORTING * 11

Best values: H59 64 K + N units

B80 25 K + N units

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T56-1 TABLE 2 KAN INK ABSORPTION

LAB MEANS COORDINATES

CO DB F H59 B 80 MAJOR MINOR

L651 31.45 53.80 -17.89 39.74

L64 3 54.25 21.25 -10.02 .79

LI 49 0 56.00 20.00 -8. 91 -1.05

L333 0 57.70 23.27 -6. 04 1.27

LI 26 0 58.70 22.87 -5.29 .50 L616 0 62.00 23.00 -2.21 -.70

LI 82 0 63.70 26.17 .61 1.53

L291 0 66.80 22.57 2.02 -3.01

L21 3 0 66.82 27.75 4.11 1.72

L277 0 70.00 27.50 6.92 .22 L339 o 72.00 27.62 •

CO o -.46 GMEANSi : 63.75 24.53

95% :ELLIPSE; 20.00 4.95

A VO

R. SDR VAR PROPBRTY TEST INSTRUMENT

1.25 560 INK ABSORPTION

OWN METHOD

1.94 560 INK ABSORPTION: OWN METHOD

.72 56K INK ABSORPTION, KAN INK TEST

1.13 56K INK ABSORPTION, KAN INK TEST

.66 56 K INK ABSORPTION, KAN INK TEST

1.61 56K INK ABSORPTION, KAN INK TEST

1.09 56 K INK ABSORPTION, KAN INK TEST

1.57 56 K INK ABSORPTION, KAN INK TEST

.81 56K INK ABSORPTION, KAN INK TEST

.51 56 K INK ABSORPTION, KAN INK TEST

.89 56 K INK ABSORPTION, KAN INK TEST

1.00 WITH GAMMA - 23 DEGREES

-CONDITIONS

21
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS 157-1 TABLE 1 HYDROGEN ION CONCENTRATION (PH), COLD

TAPPI STANDARD T509 OS-77 SAMPLE FEINTING SAMPLE FEINTING TBST D.' 5 LAB J1 8 93 GRAMS1 PEE SQUARE METBR J62 86 GRAMS1 FSB 1SQUARE METER

CODE MEAN DEV N. DEV SDR R. SDE MEAN DEV N. DEV SDE B. SDE VAB F LAB

LI 82C 4.560 -.104 -1.28 .055 2.16 5.454 -.081 -1.27 .064 1.54 57D 0 L182C

L251C 4. 692 • 02 e .34 .011 .43 5.602 .067 1.05 .013 .31 57P O L2S1C

L274 4.650 -.014 -.17 .000 .00 5.564 .029 .46 .035 .85 57V G L274

L328 6.000 1.336 16.41 .071 2.79 6.350 • 815 12.82 .071 1.71 57M 0 L328

L356 4. 754 .090 1.11 .036 1.41 5.520 -.015 -.24 .054 1.30 57V G L356

L484A 5.100 .436 5.35 .071 2.79 5.520 -.015 -.24 .084 2.02 57Y 0 L484A

GR. MEAN 4.664 PH UNITS GRAND MEAN - 5.535 PH UNITS TBST DETERMINATIONS - 5 SD MEANS - .0 81 PH UNITS SD 6F MEANS - .064 PH UNITS 4 LABS IN GRAND MEANS

AVERAGE SDR * .025 PH UNITS AVERAGE SDR - .041 PH UNITS

TOTAL NUMBER OF LABORATORIES REPORTING - 6

The following laboratories were omitted from the grand means because of extreme test results: 328, 484.

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T57-1 TABLE 2 HYDROGEN ION CONCENTRATION (PH), COLD

TAPPI STANDARD T509 OS-77

LAB MEANS COORDINATES AVG CODE F J18 J 62 MAJOR MINOR E. SDR VAR PROPERTY TEST INSTRUMENT-- -CONDITIONS

LI 82C o 4.560 5.454 -.131 -.012 1.85 57 D PH, COLD. RADICMETER TYPE PH M 28 L274 0 4.650 5. 564 .004 .032 .42 57V PH, COLD, 83CKMAN BXPANDOMATIC

L2 51C 0 4.692 5. 602 • 060 .041 .37 57 P PH, COLD, RADIOMETER TYPE PH M64 L356 0 4.754 5. 520 .068 -.061 1.35 57 V PH, COLE, BECKMAN BXPANDOMATIC

L4 84A * 5.100 5.520 .359 -.249 2.40 57 Y PH. COLD, BBC K MAN MODEL B2 L32 8 0 6.000 6.350 1.565 -.038 2.25 57M PH. COLD. BBCKMAN ZEROMATIC

GMEANS 4.664 5.535 1.00

95 * :ELLIPSE: .699 .357 EITB GAMMA - 32 DEGREES

22
RBPORT NO. 560 TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1078 ANALYSIS 157-2 TABLE 1 HYDROGEN ION CONCENTRATION (PH). HOT

TAPPI STANDARD 1435 OS-77

LAB SAMPLE

Jie 93 GRAMS PRINTINGPBR SQUARE MBTBR C0DB MEAN DEV N .DEV SDR R. SDR

LI 28 4.230 -.091 -.50 .016 .58

LI 62 4.120 -.201 1.09 .016 .58

LI 82H 4.396 .075 .40 .022 .81 L484B 4.540 .219 1.18 .055 2.02

GR. MEAN

SD MEANS

• 4.321

• .165

PH UNITS

PH UNITS AVERAGE SDR -

GRAND MEAN

SD OF MEANS

.027 PH UNITS TOTAL NUNBBR OF LABORATORIES REPORTING • 4

SAMPLE

J62 66 GRAMS

PRINTING

PER SQUARE METER TEST D. - 5 MEAN DEV N. DEV SDR R. SDR VAR F LAB

5.054 .080 .41 .011 .21 57L e LI 28 4.680 -.294 -1.49 ,066 1.23 57C 0 LI 62 5.062 .088 .45 .067 1.24 57E e L182H

5.100 .126 .64 .071 1.32 57Z 0 L484B

• 4.974 PH UNITS TBST DETERMINATIONS * 5

• .197 PH UNITS 4 LABS IN GRAND MEANS AVERAGE SDR • .054 PH UNITS

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1976 ANALYSIS T57-2 TABLE 2 BYDROGBN ieN CONCENTRATION (PH), HOT

TAPPI STANDARD T435 OS-77 LAB MEANS C 00 EDI KATES AVG

C0DB F J18 J 62 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT- --CONDITIONS

LI 62 6 4.120 4 . 680 -.353 -.051 .91 57 C PH. H0T # C0SNING M0DEL 12 RESEARCH METER U 28 0 4.230 5.054 -.003 .122 .40 S7L PH. BCT. L*N

LI 82 H 0 4.396 5. 062 .115 .005 1.03 57 E PH. B0T, RADI6M3TER TYPE PH M 28 L484B 0 4.540 5. 1 00 .241 -.C75 1.67 57 Z PH, H0T # BECKMAN M0DEL H2

GMEANS

4.321 4.974 1.00

95% ELLIPSE: 1.941 .666 WITH GAMMA 47 DEGREES

23
REPORT N6. S6G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T60-1 TABLE 1 OPACITY (89* REFLECTANCE BACKING ) IN PERCENT

TAPPI STANDARD T425 OS-75. OPACITY OF PAPER (15 DBG. /DIFFUSE, ILLUMINANT A) - B4L TYPE

SAMPLE PRINTING SAMPLE PRINTING TEST D« • 10 LAB K23 103 GRAMS PER SQUARE METER JS8 94 GRAMS PER SQUARE MBTER C0DE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DBV SDR R. SDR VAR F LAB

LI 0 5 95 • 75 .33 .79 .28 1.01 93.01 .32 .55 .30 .89 60H 0 LI 05

LX 08 95.24 -.18 -.43 .12 .42 95.29 2.60 4.53 .09 .26 60B 0 LI 06

Li 15 95.30 -.12 -.28 .22 .78 92.38 -.31 -.55 .29 . 86 60B e LI 15

Li 21 95.69 .27 .65 .30 1.06 93.17 .48 .83 .32 .95 60B 6 LI 21

Li 22 95.50 .08 .20 .35 1.24 92.90 .21 .36 .27 .79 60D 0 LI 22

Li 2 3 95.57 .13 .36 .22 .79 92.63 -.06 -.11 .34 1.00 60 * 6 LI 23

Li 24 94. e6 -.36 -1.33 .32 1.15 91. 89 -.80 -1.40 .44 1.30 60B 6 LI 24

Li 25 94. 57 -.85 -2.03 .31 1.12 92.39 -.30 -.53 .40 1.18 60H X LI 25

Li 3i 95.00 -.42 -1.00 .00 .00 92.10 -.59 -1.04 .32 .93 60R 0 LI 31

LI 32 94.95 -.47 -1.12 .21 .76 92.10 -.59 -1.04 .49 1.44 60B 0 LI 32

LI 36 95.14 -.28 -. 66 .26 .93 92.02 -.67 -1 .18 .33 .96 60H 6 LI 36

Li 39 95. 6i .13 .46 .30 1.08 92.72 .03 .05 .35 1.02 60B 6 LI 39

Li 4 8H 95.13 -.23 -.69 .11 .38 92.34 -.35 -.62 .33 .96 60S 0 LI 48H

Li 50 95. 80 .38 .91 .26 .93 93.40 .71 1.23 .52 1.51 60B e LI 50

Li 52 95.95 .53 1.27 .18 .64 93.37 .68 1.18 .31 .90 60 B 0 LI 52

LI 53 94.35 -1.07 -2.55 .47 1.70 91.40 -1.29 -2.26 .39 1.16 60B » LI 53

Li 62 95. ei .33 .94 .21 .75 93. 33 .64 1.11 .25 .74 60W 0 LI 62

Li 66 95.45 .03 .08 .51 1.84 92.44 -.25 -.44 .32 .95 60B 0 LI 66

Li 73A 95. 58 .16 .39 .27 .97 93.06 .37 .64 .18 .54 60B 0 LI 73A

Li 90C 95.40 -.02 -.04 .35 1.27 92.63 -.06 -.11 .52 1 .53 60B 0 L190C

Li 90R 95.60 .18 .44 .34 1.21 92. 83 .14 .24 .35 1.02 60B 0 L190R

L20 6 95.45 .03 .08 .29 1.05 92. 83 .14 .24 .24 .70 60 B 0 L206

L2i OB 95.50 .08 .20 .27 . 96 92.80 .11 .19 .38 1.11 60B 0 L210B

L2 i OD 95. 7i .29 .70 .19 .67 93.05 .36 .62 .37 1.07 60D 0 L2 10D

L2ii S 95. 3C -.12 -.28 .40 1.45 92.78 .09 .15 .39 1.15 6 OR 0 L211S

L212 95.70 .28 .67 .67 2. 42 93.00 .31 .53 .47 1.38 60B 0 L212

L2i 3 95.31 -.11 -.26 .16 .57 93.31 .62 1.08 .28 .83 60B X L213

L223B 95.69 .27 .65 .32 1.14 92.76 .07 .12 .29 .85 60B L223B

L22 5 95.93 .51 1 . 22 .38 1.38 92.83 .14 .24 .39 1.16 60B * L225

L22 6B 95.11 -.31 -.74 .29 1.05 92.44 -.25 -.44 .25 .75 60B 0 L226B

L228 95.00 -.42 -1.00 .35 1. 26 92.27 -.42 -.74 .34 1.00 60H 0 L228

L2 30 96.13 .71 1.70 .23 . 81 93. 78 1.09 1.90 .39 1.15 60B 0 L230

L2 36B 94.31 -1.11 -2.65 .66 2.37 91.10 -1.59 -2.78 .51 1.49 60B # L236B

L2 38A 94. 79 -.63 -1.50 .17 .60 91.81 -.88 -1.54 .25 .74 60R 0 L236A

L24i 95.68 .26 .63 .27 .98 93.36 .67 1.16 .43 1.26 60B 0 L241

L2 54 95.73 .31 .75 .28 1.02 93. 38 .69 1.20 .42 1.24 60H 0 L254 L255 95.36 -.06 -.14 .16 . 59 93.02 .33 .57 .21 .61 60 B 0 L255

L26i 95.60 .18 .44 .52 1.85 92.95 .26 .45 .28 .83 60 B 0 L261

L2 62 95.90 .48 1.15 .19 . 68 93.18 .49 .85 .29 . 86 60R 0 L262

L27 5 95.52 .10 .24 .19 . 69 92.69 -.00 -.01 .26 .77 60R 0 L275

L2 78 95.25 -.17 -.40 .33 1.19 92.63 -.06 -.11 .32 .93 60B 0 L278

L2 8i 95. e3 .41 .39 .21 .74 93.18 .49 .85 .32 .92 60D 0 L281 L285D 95.11 -.31 -.74 .31 1.12 91.91 -.78 -1.37 .37 1.07 60D 0 L285D

L285R 95.24 -.18 -.43 .23 .82 92.34 -.35 -.62 .39 1.13 60R 0 L285P

L288 95.30 -.12 -.28 .16 .56 92.74 .05 .08 .25 .73 60D 6 L288

L3 01 94. 89 -.53 -1.26 .20 .73 91.93 -.76 -1 .33 .32 .93 60B 0 L301 L305 95.50 .08 .20 .28 1.00 92.78 .09 .15 .31 .91 60R 0 L305

L30 8 95.68 .26 .63 .25 .89 92.97 .28 .48 .40 1.18 60B 0 L308

L3 i 5 95.73 .31 .75 .32 1.16 93.01 .32 .55 .24 .71 60D 0 L315

L3i 7 95.35 -.07 -.16 .25 .88 92.69 -.00 -.01 .63 1.83 60B 0 L31 7

L31 8 95.60 .18 .44 .46 1.65 93.40 .71 1.23 .46 1.35 6 OB 0 L318

L32 3 95.71 .23 .70 .24 . 85 92.84 .15 .26 .24 .71 60W 0 L323

L32 6 96.10 .68 1.63 .22 .78 93.48 .79 1.37 .37 1.08 60B 0 L326

L32 8 96.00 .58 1.39 .00 .00 92.00 -.69 -1.21 .00 .00 60B X L328

L339 95.25 -.17 -.40 .49 1.75 92.45 -.24 -.43 • SO 1.46 6 OB 0 L339

L352 95. 30 -.12 -.28 .20 .72 92.73 .04 .06 .15 .44 60R 0 L352

L354 94.70 -.72 -1.72 .48 1.73 91 .60 -1 .09 -1.91 .52 1.51 60B 0 L354

L3 90 95.84 .42 1 .01 .26 . 95 93.37 .68 1.18 .33 .96 60B 0 L390

L523 95.34 -.08 -.19 .17 .62 92.48 -.21 -.37 .27 . 80 60R 0 L523

L5 67 96.35 .93 2.23 .23 .82 93.96 1.27 2.21 .30 . 86 60D 0 L567

L573 95.73 .31 .75 .19 . 68 92.81 .12 .20 .20 • se 60H 0 L573

L58i 95.45 .03 .08 .20 .70 92.91 .22 .38 .32 .94 60B 0 L581 L587 95.38 -.04 -.09 .32 1.16 92.72 .03 .05 .40 1.19 60 B 0 L587

L5 92 94. 70 -.72 -1 .72 .21 .74 91.75 -.94 -1.65 .32 .94 60W 0 L592 L594 95.27 -.15 -.35 .31 1.11 92.61 -.08 -.15 .29 . 85 60D 0 L594

24
REPORT NO. 560 TAFPI C6LLAB0RATI VE RBFERENCB PB60RAM N0VBMBBR 1976 ANALYSIS T60-1 TABLE 1 OPACITY (69* REFLBCTANCB BACKING) IN PBBCENT

TAPPI STANDARD TA25 63-75. 6PACITY 6F PAPER (15 DEG./DIFFUSB. ILLUMINANT A) - B4L TYPE

SAMPLE PRINTING SAMPLE PRINTING TBST D. - 10 LAB K23 103 GRAMS PER SQUARE METEB JS8 94 GRAMS PBB SQUARE METER

CODE MEAN DB V N. DEV SDR B. SDB MEAN DEV N.DBV SDB B. SDR VAR F LAB

L597 94 . 30 -1.12 -2.67 .48 1.73 91.40 -1.29 -2.26 .84 2.47 60B * L597

L599 95.40 -.02 -.04 .52 1. 85 92.95 .26 .45 .28 .83 60B 0 L599 L673B 95.62 .20 .48 .29 1.05 92.78 .09 .15 .32 .92 60B 6 L673B

L673T 95.39 -.03 -.07 .21 .77 92.92 .23 .39 .50 1.47 60B 0 L673T

GR # MEAN • 95.42 PERCENT GRAND MEAN - 92.69 PBBCENT TBST DETERMINATIONS • 10

SD MEANS - .42 PERCENT SD 0P MEANS • .57 PERCBNT 65 LABS IN GRAND MEANS

A VE RAGE SDS • .28 PBBCENT AVERAGE SOB • .34 PERCENT

L224 95.35 -.07 -.16 .52 1.86 92.29 -.40 -.70 .37 1.09 60P • L224

L232 95.70 .26 .67 .35 1.26 92.10 -.59 -1.04 .39 1.16 60P L232

L249 95.21 -.21 -.50 .32 1.14 91.95 -.74 -1.30 .16 .46 60P L249

L256 97.56 2.14 5.13 .15 .54 94.18 1.49 2.60 .23 .66 60N • L256

L260 35.62 .20 .48 .26 .92 92.19 -.50 -.88 .23 .67 60P • L260

L274P 95.65 .23 .56 .34 1.21 92.25 -.44 -.77 .26 .77 60P L274P

L3I 2 35.00 -.42 -1.00 .00 .00 92.00 -.69 -1.21 .00 .00 60P L312

L30O 35.00 -.42 -1 .00 .00 .00 91.40 -1.29 -2.26 .39 1.16 60P • L380

L396 35.50 .06 .20 .33 1.20 32.85 .16 .27 .24 .71 60X L396

TOTAL NUMBER 6F LA BORA TOBIES REPORTING 78

Best values: K23 95.4 + 0.6 percent

J58 92.7 + 0.9 percent

The following laboratories were omitted from the grand means because of extreme test results: 108.

25
REPORT NO. S6G TAFPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T60-1 TABLE 2 OPACITY <89* REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75. OPACITY OF PAPER <15 DEG. /DIFFUSE, ILLUMINANT A) - BAL TYPB

LAB CODE F MEANS

K23 J58 COORDINATES

MAJOR MINOR

AVG

R. SDR VAR PR6PBRTY TEST INSTRUMENT CONDITIONS

L597 * 94.30 91 .40 -1.70 .16 2.1 0 60 B OPACITY ( WBITE BACKING), BAUSCH LOMB

L236B * 94. 3X 91.10 -1.94 -.03 1.93 60B OPACITY ( WBITE BACKING), BAUSCB LOMB

LX 53 » 94.35 91.40 -1.67 .11 1.43 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

LX 25 X 94.57 92.39 -.74 .51 1.15 60H OPACITY (WHITE BACKING), HDYGEN

L592 0 94.70 91.75 -1.19 .03 .84 60* OPACITY ( WHITE BACKING), HUYGEN. DIGITAL

L3 54 0 94.70 91 .60 -1.31 -.05 1.62 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB L238A 0 94.79 91.81 -1.08 -.00 .67 60 R OPACITY ( WHITE BACKING), THWI NG-ALBBRT ( FORMBBLY SKL ) LX 24 0 94.86 91 . 89 -.98 -.01 1.22 60B OPACITY ( WHITE BACKING), BAUSCH LOMB

L30X 0 94.89 91 .93 -.93 -.02 .83 60 B OPACITY ( WHITE BACXING ) , BAUSCH LOMB

LX 32 0 94.95 92.10 -.76 .03 1.10 60B OPACITY ( WHITE BACKING), BAUSCH LOMB

L2 2Q 0 95.00 92.27 -.59 .09 1.13 60 H OPACITY ( WHITE BACKING), HUYGBN

L3 80 95.00 91 .40 -1.29 -.41 .58 60F OPACITY ( WHITE BACKING), PHOTOVOLT

L3X2 95.00 92.00 -.81 -.06 .00 60 P OPACITY ( WHITE BACKING), PHOTO VOLT

LX3X 0 95. CO 92.10 -.73 -.01 .46 60 R OPACITY ( WHITE BACKING), THW I NG-ALBBRT (FORMERLY SFL) L285D 0 95. XX 91.91 -.82 -.21 1.09 60D OPACITY ( WHITE BACKING), BNL-2 L226B 0 95.1 X 92.44 -.39 .10 .90 60 B OPACITY ( WHITE BACKING), BAUSCB LOMB

LX 4 8H 0 95.X 3 92.34 -.46 .03 .67 60 B OPACITY (WHITE BACKING), HUYGEN

LX 36 0 95.X 4 92.02 -.71 -.17 .95 60 B OPACITY ( WHITE BACKING), HUYGBN

L24 9 95. 2X 91.95 -.73 -.26 .80 60P OPACITY ( WHITE BACKING), PHOTOVOLT

L285R 0 95.24 92.34 -.39 -.06 .97 60 R OPACITY ( WHITE BACKING), THWING-ALBBRT (FORMERLY SBL )

LX 08 ft 95.24 95.29 2.01 1.66 .34 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L339 0 95.25 92.45 -.30 -.01 1.60 60B OPACITY ( WHITE BACKING), BAUSCB LOMB

L27 8 0 95.25 92.63 -.15 .10 1.06 60 B OPACITY ( WHITE BACKING). BAUSCH LOMB

L594 0 95.27 92.61 -.15 .07 .98 60D OPACITY ( WHITE BACKING), BNL-2

L3 52 0 95.30 92.73 -.04 .12 .58 60R OPACITY ( WHITE BACKING), THWING-ALBBRT ( FORMBRLY SSL )

L2XX S 0 95.30 92.78 .00 .15 1.30 60 R OPACITY ( WHITE BACKING), THWING-ALBBRT (FORMBRLY SBL ) L288 0 95.30 92.74 -.03 .12 .65 60 D OPACITY (WHITE BACKING), BNL-2

LX X 5 0 95.30 92.38 -.32 -.09 .82 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L2X3 X 95. 3X 93.31 .44 .45 .70 60 B OPACITY ( WHITE BACKING). BAUSCH LOMB

L52 3 0 95.34 92.48 -.22 -.06 .71 60 R OPACITY ( WHITE BACKING). THWING-ALBBRT (FORMERLY SRI. ) L224 95.35 92.29 -.37 -.18 1 .48 60P OPACITY ( WHITE BACKING), PHOTOVOLT

L3X7 0 95.35 92.69 -.04 .05 1.36 60 B OPACITY ( WHITE BACKING). BAUSCB LOMB

L255 0 95.36 93.02 .23 .24 .60 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L587 0 95.38 92.72 -.00 .05 1.17 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB L673T 0 95.39 92.92 .17 .15 1.12 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

LX 90C 0 95.40 92.63 -.06 -.02 1.40 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L599 0 95.40 92.95 .20 .16 1.34 60 B OPACITY (WHITE BACKING). BAUSCB LOMB

LX 66 0 95.45 92 .44 -.19 -. 17 1 .39 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L58X 0 95.45 92.91 .19 .10 .82 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L20 6 0 95.45 92.83 .13 .05 .88 60 B OPACITY ( WHITE BACKING). BAUSCB LOMB

L396 95.50 92.85 .17 .02 .95 60X OPACITY GIVE INSTR. MAKE,M0DBL;( )WHITB OR ( )PA PBR BACKING

L2X0B 0 95.50 92.80 .13 -.00 1.04 60 B OPACITY ( WHITE BACKING), BAUSCB LOMB

LX 22 0 95.50 92.90 .22 .05 1.02 60 D OPACITY ( WHITE BACKING), BNL-2

L30 5 0 95.50 92.78 .12 -.02 .96 60R OPACITY ( WHITE BACKING), THWING-ALBBRT (FORMBRLY SRL ) L275 0 95.52 92.69 .06 -.09 .73 60 R OPACITY ( WHITE BACKING), THWING-ALBBRT (FORMBRLY SRL )

LX 2 3 0 95.57 92.63 .04 -.16 .90 60 W OPACITY (WHITE BACKING), HUYGEN, DIGITAL

LX 73A 0 95.58 93.06 .39 .08 .75 60 B OPACITY (WHITE BACKING). BAUSCH LOMB

L26X 6 95.60 92.95 .31 . 00 1.34 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

LX90R 0 95.60 92.83 .22 -.07 1.11 60 B OPACITY ( WHITE BACKING), BAUSCB LOMB

L3X 8 0 95.60 93.40 .68 .26 1.50 60B OPACITY ( WHITE BACKING). BAUSCB LOMB

LX 39 0 95. 6X 92.72 .13 -.14 1.05 60 B OPACITY ( WHITE BACKING), BAUSCB LOMB

L260 95.62 92.19 -.29 -.46 .80 60 P OPACITY ( WHITE BACKING), PHOTOVOLT

L673R 0 95.62 92.78 .19 -.11 .99 60 B OPACITY ( WHITE BACKING). BAUSCB LOMB

L274P 95.65 92.25 -.23 -.45 .99 60P OPACITY ( WHITE BACKING), PHOTOVOLT

L30 8 0 95.68 92.97 .38 -.05 1.04 60 B OPACITY ( WHITE BACKING), HUYGEN

L24X 0 95.68 93.36 .69 .17 1.12 60 B OPACITY < WHITE BACKING), BAUSCH LOMB

LX2X 0 95.69 93.17 .55 .06 1.01 60 B OPACITY ( WHITE BACKING), BAUSCB LOMB

L22 3B 0 95.69 92.76 .21 -.18 1.00 60 B OPACITY ( WHITE BACKING). BAUSCH LOMB

L2 32 95.70 92.10 -.32 -.58 1.21 60 P OPACITY ( WHITE BACKING). PHOTOVOLT

L2X2 0 95.70 93.00 .41 -.05 1.90 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L323 0 95. 7X 92.84 .29 -.15 .78 60W OPACITY ( WHITE BACKING), HUYGEN, DIGITAL

L2X OD 0 95. 7X 93.05 .46 -.03 .87 60D OPACITY ( WHITE BACKING), BNL-2

L254 0 95.73 93.38 .74 .15 1.13 60 B OPACITY ( WHITE BACKING), HUYGBN

L573 0 95.73 92.81 .28 -.19 .63 60 B OPACITY ( WHITB BACKING), HUYGBN

L3X 5 0 95.73 93.01 .44 -.07 .94 60D OPACITY ( WHITE BACKING). BNL-2

26
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM N6VBMBEE 1976 ANALYSIS T60-1 TABLE 2 OPACITY (89* REFLBC1ANCB BACKING) IN PBRCBNT

TAPPI STANDARD T425 OS-75. OPACITY OF PAPER (15 DEG./DIFFUSE. ILLUMINANT A) - B4L TYPE

LAB CADE F MEANS

K23 J 58 COORDINATESMAJOR MIN0B AVGR. SDR VAB PROPBETY TEST INSTRUMENT CONDITIO!

LI 0 5 6 95.75 93.01 .45 -.09 .95 60 B OPACIIY (WHITE BACKING). HUYGEN

LI 50 6 95.80 93.40 .80 .10 1.22 60 B OPACITY (WHITE BACKING ). BAUSCB LOMB

LI 62 0 95.81 93.33 .75 .05 .75 60* OPACITY ( WHITE BACKING). HUYGBN. DIGITAL

L2 81 0 95.83 93.1 8 .64 -.05 .83 60D OPACITY (WHITE BACKING ). BNL-2

L390 0 95.84 93.37 .80 .05 .95 60 B OPACITY ( WHITE BACKING ). BAUSCB LOMB

L2 62 0 95.90 93.18 .68 -.11 .77 60R OPACITY ( WHITE BACKING). THWING- ALBERT 1 L225 • 95.93 92.63 .41 -.34 1.27 60 B OPACITY (WHITE BACKING ). BA U SC B LOMB

LI 52 0 95.95 93.37 .86 -.04 .77 60 B OPACITY (WHITE BACKING ). BAUSCB * LOMB

L328 X 96.00 92.00 -.22 -. 88 .00 60B OPACITY ( WHITE BACKING ). BAUSCB • LOMB

L3 2 6 0 96.10 93.48 1.04 -.10 .93 60 B OPACITY (WHITE BACKING). BAUSCB • LOMB

L2 30 0 96.13 93.78 1.30 .05 .98 60 B OPACITY ( WHITE BACKING ). BAUSCB LOMB

L567 0 96.35 93.96 1.57 -.02 .84 60 D OPACITY (WHITE BACKING ). BNL-2

L2 5 6 97.56 94.18 2.46 -.88 .60 60N OPACITY ( WHITE BACKING ). HUNTBR

GMEANS

:

95*42 92.69

95* ELLIPSE

:

1.77 .29 1.00 WITH GAMMA - 54 DEGREES

27
PERCENT

92.5

93.5

94.

OPACITY. B4L TYPE. 89*/. BACKING

SAMPLE K23 = 95-4 PERCENT SAMPLE J58 = 92.7 PERCENT

PERCENT

28
REPORT NO. 560 TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1970 ANALYSIS 160-2 TABLE 1 OPACITY ( PAPER BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75. OPACITY OF PAPER <15 DEG./DIFFUSE. ILLUMINANT A) - BAL TTPB

SAMPLE PRINTING SAMPLE PRINTING TBST D. • 10 LAB K23 103 GRAMS PBB SQUARE MBTBR J58 94 GRAMS PER SQUARE METER CODE MEAN DBV N .DBV SDR R. SDR MBAN DEV N .DBV SDR R. SDR VAR F LAB

LI 15 96.04 .15 .92 .31 1.04 93.46 .37 1.11 .13 .38 60C 6 LI 1

5

LI 90C 95.67 -.22 1.35 .27 .89 93.33 .24 .72 .35 1.00 60C 0 L190C

LI 90S 96.02 .13 .80 .33 1.10 92.94 -.15 -.43 .36 1.01 60C 0 L190R

L236B 95.77 -.12 -.74 .43 1.43 93.10 .01 .04 .40 1.14 60C 0 L236B

L274 95.95 .06 .37 .16 .53 92.60 -.49 1.44 .52 1.47 60C 0 L274

GR. MEAN * 95.89 PERCENT GRAND MEAN * 93.09 PERCENT TBST DETERMINATIONS - 10

SD MEANS - .16 PBRCENT SD OF MEANS .34 PBHCBNT 5 LABS IN GRAND MEANS AVERAGE SDR - .30 PERCBNT AVERAGE SDR - .35 PBRCENT TOTAL NUMBER OF LABORATORIES REPORTING • 5 Best values: K23 95.9 percent

J58 93.1 percent

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVBMBBR 1978 ANALYSIS T60-2 TABLE 2 OPACITY (PAPER BACKING) IN PERCBNT

TAPPI STANDARD T425 OS-75, OPACITY OF PAPER <15 DEG./DIFFUSE, ILLUMINANT A) - BAL TYPE

LAB MEANS C00RDI NATBS AVC

CODE F K23 J58 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L190C 0 95*67 93.33 -.27 -.19 .95 60 C OPACITY ( PAPER BACKING >, PAUSCH LOMB L236B 0 95*77 93.10 -.03 -.12 1.28 60 C OPACITY ( PAPER BACKING ), BAUSCB LOMB

L2 74 0 95.95 92.60 .49 -.00 1.00 60C OPACITY ( PAPER BACKING), BAUSCB LOMB

LI 90R 0 96*C2 92.94 .16 .11 1.06 60C OPACITY < PAPER BACKING ), BAUSCB LOMB

LI 15 0 96*04 93.46 -.35 .20 .71 60C OPACITY ( PAPER BACKING ), BAUSCB * LOMB

GMEANS1 : 95.89 93.09 1.00

95* ELLIPSE: 1.72 .80 WITH GAMMA ‘-82 DEGREES

29
REP6RT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS 160-3 TABLE 1 OPACITY ( PAPBR BACKING) IN PBRCBNT

TAPPI SUGGESTED METHOD T5X9 OS-78. DIFFUSB

SAMPLE PR I NTT NG LAB K23 103 GRAMS PBS SQUARE METER

CODE MEAN DEV N .DEV SDR R. SDR

LI 50 96.29 -.02 -.11 .21 1.47

LI 82E 96.25 -.05 -.33 .16 1.10

L236 96.31 .01 .04 .13 .90 L242 96.44 .14 .84 .12 .82 L244 96.12 -.18 1.13 .19 1.31 L250T 96.03 -.27 1.68 .14 . 99

L25S 96.04 -.27 1.65 .17 1.22

L309 95.25 -1.05 6.48 .27 1.90

L313 96.56 .26 1.57 .13 . 88 L360 96.31 .01 .04 .12 . 84

L44 6 96.41 .11 .66 .13 . 90

L4 84 96.40 .10 .62 .14 .97

L59 8 96.47 .17 1.02 .14 .99

L6 7 8 96.32 .02 .12 .09 .63

GR. MEAN - 96.30 PERCENT GRAND MEAN

SD MEANS - .16 PERCENT SD OF MBANS

AVERAGE SDR • .14 PERCENT

L62 6 96.00 -.30 1.87 oo • o o TOTAL NUMBER 6F LABORATORIES REPORTING • 15

Best values: K23 96.3 + 0.3 percent

J58 93.5 + 0.4 percent

The following laboratories were omitted from the grand means because of extreme test results: 309.

OPACITY OF PAPER - ILLUMINANT C. ELRBPH0 TYPE

SAMPLE J58 94 GRAMS PRINTING

; PBR SQUARE MBTER TEST D. - 10 MEAN DEV N. DEV SDR R. SDR VAR F LAB

93.56 .01 .05 .18 .89 60J 0 LI 50 93.41 -.14 -.70 .13 .66 60J e L182E

93.46 -.09 -.46 .31 1 .60 60J e L236

93.61 .06 .28 .23 1.16 60J e L242 93.32 -.23 -1.15 .20 1.01 60F 0 L244

93.35 -.20 -1.00 .31 1.60 60 J 0 L250T 93.28 -.28 -1.37 .22 1.14 60F e L251 91.83 -1.72 -8.50 .31 1.59 60J * L309

93. as .33 1.62 .16 .82 60F 0 L313

93.47 -.08 -.41 .18 .93 60F 6 L360

93.55 .00 .01 .15 .77 60J 0 L446 93.76 .21 1.01 .21 1.06 60F 8 L484

93.91 .36 1.76 .12 .61 60 J 0 L598

93.62 .07 .34 .15 .76 60 J 0 L678

93.55

.20 PERCBNT

PEBCBNT AVERAGE SDR •

TBST DETERMINATIONS • 10 13 LABS IN GRAND MEANS

.20 PERCENT

01 o o -. 55 -2.73 .00 .00 600 L626

REPORT NO. 56G TAPPI C0LLA B0RATI VB REFERENCE PROGRAM ANALYSIS T60-3 TABLE 2 OPACITY (PAPBR BACKING) IN PERCBNT

TAPPI SUGGESTED MBTB0D T519 OS-78. DIFFUSE OPACITY OF PAPER - ILLUMINANT C, ELRBPH0 TYPE

NOVEMBER 1978

LAB MEANS COORDINATES AVG

CODE F K23 J58 MAJOR MINOR R. SDR VAR PROPBRTY TEST INSTRUMENT-- -CONDITIONS

L309 * 95.25 91 .83 -2.01 -.23 1.74 60 J OPACITY < PAPER BACKING ), ZBISS BLREPHO, FMY-C< 10 ) FILTER

L626 96.00 93.00 -.62 -.10 .00 60Q OPACITY < PAPER BACKING ) , PBOTO VOLT

L2 50T 0 96.03 93.35 -.33 .09 1.29 60 J OPACITY ( PAPER BACKING ). ZBISS ELRBPHO, FMY-CC 10 ) FILTER

L2 5X 0 96.04 93.28 -.38 .04 1.18 60F OPACITY < PAPER BACKING ), ZEISS ELFEPHO, FMY-C( 10

)

NO TRAP

L244 0 96.12 93.32 -.30 .00 1.16 60F OPACITY < PAPER BACKING ), ZEISS ELREPHO, PMY-C< 10

)

NO TRAP L182E 0 96.25 93.41 -.15 -.05 .88 60 J OPACITY ( PAPER BACKING ), ZBISS ELRBPHO, FMY -C( 10 ) FILTER

LI 50 0 96.29 93.56 -.00 .02 1.18 60 J OPACITY < PAPER BACKING ). ZEISS BLRBPHO, FMY-C< 10

)

FILTER

L236 0 96.31 93.46 -.07 -.06 1.25 60 J OPACITY ( PAPER BACKING ), ZEISS BLRBPHO, FMY-C< 10 ) FILTBR

L360 0 96.31 93.47 -.06 -.06 .88 60F OPACITY < PAPER BACKING ). ZEISS BLRBPHO, PM Y-C( 10 ) NO TRAP

L678 0 96.32 93.62 .07 .03 .69 60 J OPACITY < PAPER BACKING ), ZBISS ELREPHO, FMY-C< 10 ) FILTBR

L4 84 0 96.40 93.76 .22 .05 1.01 60 F OPACITY < PAPER BACKING ), ZEISS BLRBPHO, FMY-C< 10 ) NO TRAP

L446 0 96.41 93.55 .07 -.08 .83 60 J OPACITY < PAPER BACKING ), ZEISS ELREPHO, FM Y-C( 10 ) FILTER

L242 0 96.44 93.61 .13 -.07 .99 60 J OPACITY < PAPER BACKING ), ZBISS ELRBPHO, FMY-CC 10 > FILTBR

L59 8 0 96.47 93.91 .38 .09 .80 60 J OPACITY < PAPER BACKING ), ZBISS BLRBPHO, FMY-C< 10 ) FILTBR

L313 0 96.56 93.88 .42 .00 . 85 60F OPACITY < PAPER BACKING ), ZBISS ELRBPHO, FMY-CC 10 ) NO TRAP

GMEANS

96.30 93.55 1.00

95* ELLIPSE: .75 .17 WITH GAMMA " 51 DEGREES

30
PERCENT

OPACITY, ELREPHO TYPE, PAPER BACKING

SAMPLE K23 = 96.30 PERCENT SAMPLE J58 = 93.55 PERCENT

i. -1 .

CO I

OO + .X.* NOT IN GRAND MEANS

LD

“O ANALYSIS T60-3

CL

CQ

_©

©

©

©

© ©

-©-

II ©

©

©

©

SAMPLE K23

i

1 i 95.6 95.8 96.0 96-2 96.4

PERCENT

96.6 96.8 97.0

31
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1976 ANALYSIS 165-1 TABLE 1 DIRECTIONAL BLUE REFLECTANCE IN PBRCENT

TAPPI STANDARD T452 OS-77, * BRIGHTNESS 1

; MARTIN SWEETS ( ACBT 4 GE ) IS STANDARD FOR THIS ANALYSIS

SAMPLE PRINTING SAMPLE PRINTING TBST D. 8 LAB E78 116 GRAMS PER SQUARE METER J97 89 GRAMS PER SQUARE MBTBR

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

LX 08 95 • 94 -.37 -.81 .16 1.54 76.60 .69 1.36 .15 1.00 65M e Lioe

LI 22 96.00 -.30 -.67 .05 .52 75.61 -.30 -.60 .15 .97 65N e Ll 22

LI 32 96.96 .66 1.46 .09 . 88 76.11 .20 .40 .17 1.15 65N 0 LI 32 L190C 95.67 -.63 -1.39 .12 1.12 75.02 -.89 -1.76 .10 .69 65A e Ll 90C L210M 96.04 -.27 -.59 .07 .72 75.52 -.39 -.77 .07 .47 65M 0 L210M

L21 ON 95.87 -.43 -.95 .07 .68 75.37 -.54 -1.07 .13 .85 65N 6 L210N

L211 93.99 -2.32 -5. 13 .30 2.94 74.81 -1.10 • 2.18 .15 .97 65N * L211 L225 96.50 .20 .44 .09 .89 96.15 20.24 40.18 .11 .71 65N 9 L225

L275 95.91 -.39 -.87 .08 .81 75.50 -.41 -.82 .12 .79 65M 0 L275

L2 85 96.47 .17 .38 .24 2.35 76.25 .34 .67 .23 1.55 65N 0 L2 85

L2 88 96.49 .16 .41 .17 1.67 76.50 .59 1.17 .12 .79 6 5N 0 L288

L308 96.94 .63 1.40 .07 .72 76.79 .88 1.74 .12 .83 65N 0 L308

L31 5 96.49 .16 .41 .08 .81 76.17 .26 .52 .25 1.69 65N 0 L315

L523 96.01 -.29 -.64 .04 .34 76.17 .26 .52 .09 .59 65N 0 L523

L59 8 96.09 -.22 -.48 .08 .81 75.75 -.16 -.32 .17 1.12 65M 0 L598

L63 6 96.51 .21 .46 .14 1.31 75.76 -.15 -.30 .25 1.66 6 5 W a L6 36 L673R 97.15 .65 1 .88 .08 .73 75.54 -.38 -.74 .13 .86 65N 0 L673R

GK« MEAN - 96.30 PERCBNT GRAND MEAN - 75.91 PERCENT TBST DETERMINATIONS - 8 SD MEANS - .45 PEBCENT SD OF MEANS * .50 PERCBNT 15 LABS IN GRAND MEANS

AVERAGE SDK - .10 PERCENT AVBRAGE SDR - .15 PERCENT

LI 05 98.00 1.70 3.76 .15 1.46 75.86 -.05 -.10 .17 1.12 65T Ll 05

L2I3 97.76 1.46 3.23 .12 1.15 76.17 .26 .52 .15 .99 65T L213

L223 97.70 1.40 3.09 .05 .52 76.71 .80 1.59 .20 1.30 65G L223

L224 96.14 -.17 -.37 .12 1.15 75.90 -.01 -.02 .19 1.23 65B L224

L232 97. 00 .70 1.54 .53 5. 16 77.25 1.34 2.66 .27 1.77 65P L232

L2 41 96.11 -.19 -.42 .23 2.22 76.52 .61 1.22 .13 .85 651 L241

L2 49 97.02 .72 1 .60 .07 .68 77.72 1.81 3.60 .14 .92 65P L249 L256 96.62 .32 .71 .09 . 86 75.62 -.29 -.57 .10 .69 65H L256

L260 96.05 -.25 -.56 .08 .73 77.04 1.13 2.23 .12 .79 65P L260

L277 93.00 -3.30 -7.32 1.07 10.32 81 .00 5.09 10.10 .00 .00 65P L277

L278 97.82 1.52 3.37 .21 1.98 77.50 1.59 3.15 .28 1.88 65P L2 78

L30I 96.89 .58 1.29 .10 .96 75.81 -.10 -.20 .16 1.09 65G L301 L3I2 96.25 -.05 -.12 .38 3.65 78.25 2.34 4. 64 .27 1.77 65P L312

L32X 100.00 3.70 8.19 .00 .00 78.00 2.09 4.14 .00 .00 65P L321

L32 8 99.42 3.12 6.91 .48 4.64 78.50 2.59 5.14 .00 .00 65P L328

L339 96.94 .63 1.40 .32 3.09 76. 87 .96 1.91 .23 1.53 65P L339

L380 95.12 -1.16 -2.61 .23 2.23 78.00 2.09 4.14 .00 .00 65P L3 80

L5 62 96.50 .20 .44 .00 .00 81.50 5.59 11.09 .00 .00 65P L562

L5 87 96.07 -.23 -.51 .05 .45 74.96 -.95 -1.89 .09 .61 651 L587

L59I 98.67 2.36 5.24 .07 .71 74. 84 -1.07 -2.13 .17 1.14 65H L591

L61 7 94.45 -1.85 -4.11 .13 1.26 74.69 -1.22 -2.43 .11 .75 65G L617

L626 96.62 .32 .71 .35 3.41 78.12 2.21 4.39 .10 . 69 65P L626 TOTAL NUMBER OF LABORATORIES REPORTING - 39

Best values: E78 96.1 + 0.9 percent

J97 75.8 + 0.8 percent

The following laboratories were omitted from the grand means because of extreme test results: 211,

225.

32
REPORT N6. 56C TAPPI COLLABORATIVE REFBRBNCB PROGRAM N6VBMBBR 1978 ANALYSIS T65-1 TABLE 2 DIRECTIONAL BLDE RBPLECTANCB IN PERCENT

TAPPI STANDARD 1452 OS-77. ‘BRIGHTNESS 1 ; MARTIN SWEETS ( ACBT 4 GE ) IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG CODB F E78 J97 MAJOR MINOR R. SDR VAR PROPBRTY TEST INSTRUMENT CONDITIONS

L277 93.00 81 .00 1.97 5.74 5.1 6 65 P BLUE RBFLECTANCE < DIRECTIONAL >, PHaTOVaLT

L211 * 93.99 74.81 •2.29 1.15 1.95 65 N BLUB RBPLECTANCB ( DIRECTIONAL ). TECHNIDYNB/DIANO/M. S., S-4

L61 7 94.45 74.69 -2.11 .71 1.01 65 G BLUE RBFLECTANCE ( DIRECTIONAL ). GARDNER

L3 80 95.12 78.00 .92 2.21 1.12 65 P BLUB RBFLBCTANCB ( DIRBCT IONAL >. PHeievaLT

LI 90C a 95.67 75.02 -1.09 -.05 .91 65A BLUE REFLECTANCB ( DIRECTIONAL ). MARTIN SWEETS (ACBT).S-2

L21 ON a 95.87 75.37 -.69 .01 .77 65 N BLUE RBFLBCTANCE ( DIRECTIONAL ). TECHNIDYNE/DIANO/M. S.. S-4 L275 a 95.91 75.50 -.57 .05 .80 65M BLUB RBFLBCTANCB ( DIRBCT IONAL ). MARTIN SWBBTS (GE ). S-l

LI 08 a 95.94 76.60 .32 .71 1.27 65M BLUB RBFLECTANCE ( DIRECTIONAL ), MARTIN SWEBTS (GE). S-l

LI 22 a 96.00 75.61 -.42 .05 .74 65N BLUE RBFLECTANCE < DIRECTIONAL ). TECHNIDYNE/DIANO/M. S., S-4 L523 a 96.01 76.17 .03 .39 .46 65N BLUB RBFLECTANCE < DIRECTIONAL ), TECHNIDYNE/DIANO/M. S.. S-4

L2 1 OM a 96.04 75.52 -.47 -.03 .59 65 M BLUB REFLBCTANCB < DIRECTIONAL ). MARTIN SWEETS (GB). S-l L260 96.05 77.04 .73 .89 .76 65 P BLUE RBFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L587 96.07 74.96 -.89 -.41 .53 651 BLUE RBFLBCTANCB ( DIRECTIONAL ). HUNTER D2SD2A

L598 a 96.09 75.75 -.26 .07 .96 65 M BLUE RBPLECTANCB ( DIRECTIONAL ). MARTIN SWEETS (GB). S-l L24S 96.11 76.52 .37 .53 1.53 651 BLUE REFLBCTANCB ( DIRECTIONAL ), HUNTER D25D2A

L224 96.14 75.90 -.11 .12 1.19 65H BLUE REFLECTANCE < DIRECTIONAL ), HUNTER

L312 96.25 78.25 1.81 1.48 2.71 65P BLUE REFLECTANCB ( DIRECTIONAL ). PHOTOVOLT

L285 a 96.47 76.25 .37 .07 1.95 65N BLUE REFLECTANCB ( DIRECTIONAL ). TECHNI DYNE/DIANO/M. S., S-4

L31 5 a 96.49 76.17 .32 .02 1.25 65N BLUE REFLBCTANCB < DIRECTIONAL ). TECHNIDYNE/DIANO/M. S., S-4 L288 a 96.49 76.50 .58 .22 1.23 65N BLUE RBFLBCTANCE ( DIRECTIONAL ), TECHNIDYNE/DIANO/M. S., S-4

L562 96.50 81.50 4.52 3.29 .00 65 P BLUE RBFLBCTANCE < DIRECTIONAL >. PHOTOVOLT

L22S 0 96.50 96.15 16.07 12.31 .80 65N BLUE REFLBCTANCB ( DIRECTIONAL ), TECHNIDYNE/DIANO/M. S., S-4 L636 a 96.51 75.76 .01 -.26 1.48 65 M BLUE RBFLBCTANCB < DIRECTIONAL ). MARTIN SWEETS (GE). S-l L62 6 96.62 78.12 1.94 1.11 2.05 65 P BLUE REFLECTANCB ( DIRECTIONAL ), PHOTOVOLT

L256 96.62 75.62 -.03 -.43 .77 65 H BLUE RBFLECTANCE ( DIRBCT IONAL ), HUNTER

L301 96.89 75.81 .28 -.52 1.02 650 BLUB RBFLBCTANCE < DIRECTIONAL ). GARDNER

L339 96.94 76.87 1.15 .09 2.31 65P BLUB RBFLBCTANCE ( DIRECTIONAL ). PHOTOVOLT

L3 0 8 a 96.94 76.79 1.08 .04 .77 65N BLUE REFLECTANCE ( DIRECTIONAL ), TBCHNIDYNB/DIANO/M. S., S-4

LI 3 2 a 96.96 76.11 .56 -.40 1.01 65N BLUE REFLECTANCB ( DIRECTIONAL ), TBCHNIDYNB/DIANO/M. S.. S-4 L232 97.00 77.25 1.48 .27 3.47 65P BLUE REFLBCTANCE ( DIRECTIONAL ). PHOTOVOLT

L249 97.02 77.72 1.87 .55 .80 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L673R a 97.15 75.54 .23 -.90 .80 65N BLUE RBFLECTANCE ( DIRECTIONAL ), TBCHNIDYNB/DIANO/M. S.. S-4 L223 97.70 76.71 1.49 -.61 .91 65 G BLUE RBFLBCTANCB ( DIRBCT IONAL ), GARDNER

L21 3 97.76 76.17 1.11 -.99 1.07 65 T BLUE RBFLECTANCE < DIRECTIONAL ), BUNTER D25D2M

L278 97.82 77.50 2.19 -.22 1.93 65 P BLUE RBFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

LI 05 98.00 75.86 1.01 -1.37 1.29 65T BLUE RBFLECTANCE < DIRECTIONAL ), HUNTER D25D2M

L591 98.67 74.84 .61 -2.52 .92 65 e BLUE RBFLBCTANCB ( DIRECTIONAL ). HUNTBR

L32 8 99.42 78. 50 3.96 -.87 2.32 65P BLUE RBFLBCTANCE ( DIRECTIONAL ). PHOTOVOLT

L321 100.00 78.00 3.92 -1.63 .00 65 P BLUE RBFLBCTANCE ( DIRECTIONAL ), PHOTOVOLT

GMEANS : 96.30 75.91 1.00

95% ELLIPSE: 1.65 1.01 WITH GAMMA - 51 DEGREES

33
PERCENT

BLUE REFLECTANCE. OIRECTI0NAL

LD

rrLO

(0

rLD

LD

rLD

*3- r-~

SAMPLE E78 = 96.3 PERCENT SAMPLE J97 = 75.9 PERCENT

I I I I I I I

p. NOT IN GRANO MEANS

CD

ANALYSIS T65-1

LU

_J

Q_

2=

CL

CD +

0

+-

o

+

+

+o

0

0

0 + o

*

. + o 0

0

0 ® o

o

o

1 1 1 SAMPLE E78 —i

1 1 1 95.0 96.0 97.0 98.0

PERCENT

34
REPeRT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS 165-2 TABLE 1 BIFF BSE BLUE REFLECTANCE IN PERCENT (GLOSS TRAP)

TAPPI SBGGESTED METB6D TE2E SU-72. BRIGHTNESS OF PBLP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 8 LAB E78 116 GRAMS PER SQUARE METER J97 89 GRAMS PER SQUARE METER

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

LI 21 96,12 -.36 -.61 .05 .45 76.86 1.07 1.68 .10 .59 65K 6 LI 21

LI 3 6 96,64 .16 .27 .08 .77 76.18 .39 .60 .12 .74 65F 0 LI 36

LI 50 96,88 .40 .68 .06 .55 74.76 -1.03 1.62 .16 .94 65Q 6 LI 50

LI 82 96,45 -.03 -.05 .11 1.05 75.52 -.27 -.42 .11 .64 6 5F 0 LI 82 L210K 95,56 -.92 1.57 .33 3.20 76.70 .91 1.42 .18 1 .09 65K 0 L210K

L2 3 6 97,19 .71 1.20 .06 .58 75.73 -.06 -.10 .10 .56 6SF 6 L236

L2 4 2 96,55 .07 .12 .08 .74 75.24 -.55 -. 86 .19 1.10 65F 0 L242

L2 50T 96.85 . 37 .63 .11 1.05 76.03 .24 .37 .14 . 85 65F 6 L2 50T

L2 80 96,19 -.29 -.49 .14 1.39 75.15 -.64 1.00 .55 3.25 65Q 0 L280

L32 5 97.60 1.12 1.90 .09 .90 76.41 .61 .96 .17 1.00 65F 0 L325

L44 6 96.22 -.26 -.45 .08 .73 75.11 -.68 1.06 .06 .37 65F 6 L445

L573 98.84 2.36 4.00 .05 .51 77.61 1.81 2. 84 .12 .71 65F * L573

L59 8 95.51 -.97 1.65 .10 . 96 75.90 .11 .17 .15 .88 65K 0 L598

L63 6 96.48 .00 .01 .06 .62 75. 70 1 • o -.14 .17 .99 6 55 0 L6 36

GR. MEAN - 96.48 PERCENT GRAND MEAN - 75.79 PERCENT TEST DETERMINATIONS - 8 SD MEANS - . 59 PERCENT SD OF MEANS - .64 PERCENT 13 LABS IN GRAND MEANS

AVERAGE SDR - .10 PBRCENT AVERAGE SDR - .17 PERCBNT

L289 96.72 .24 .42 .10 1,00 76.42 ,63 .99 .13 • 76 656 L2 89 TOTAL NUMBER OF LABORATORIES REPORTING * 15

Best values: E78 96.5 + 1.0 percent

J97 75.7 + 1.1 percent

The following laboratories were omitted from the grand means because of extreme test results: 573.

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T65-2 TABLE 2 DIFFUSE BLUE RBFLBCTANCE IN PERCENT (GLOSS TRAP)

TAPPI SUGGESTED METBOD T525 SU-72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

LAB

C0DB F MEANS

E78 J 97 C00RD I NATES

MAJOR MINOR AVG

R. SDR VAR PROPERTY TEST INSTRUMENT- —CONDITIONS

L59 8 0 95.51 75.90 -.58 -.79 .92 65K DIFFUSE REFLECTANCE, ELRBPH0, GL. TRAP

MG6 (ZEISS) BASE L210K 0 95.56 76.70 -1.25 -.35 2.14 65K DIFFUSE REFLECTANCE, ELREPHO, GL. TRAP, MG6 (ZEISS) BASE

LI 21 0 96.1 2 76.86 -1.11 .22 .52 65K DIFFUSE REFLECTANCE, ELREPHO. GL. TRAP, MGO (ZEISS) BASE

L280 0 96.19 75.15 .41 -.57 2.32 65Q DIFFUSE REFLECTANCE, ELREPHO, GL. TRAP, ZBISS ABS0LUTB BASE

L446 0 96.22 75.11 .46 -.56 .55 65F DIFFUSE RBFLECTANCE

ELREPHO. GL. TRAP

NRC-PTB ABSOLUTE BASE

LI 82 0 96.45 75.52 .22 -.16 .84 65 F DIFFUSE REFLECTANCE, BLREPH0 , GL. TRAP, NHC-PTB ABSOLUTE BASE

L636 0 96.48 75.70 .08 -.04 .81 65K DIFFUSE RBFLECTANCE, BLREPH0, GL. TRAP, MGO (ZEISS) BASE

L242 0 96.55 75.24 .51 -.21 .92 65F DIFFUSE REFLECTANCE, ELREPHO, GL.TRAP, NRC-PTB ABSOLUTE BASE

LI 36 0 96.64 76.18 -.26 .33 .76 65F DIFFUSE REFLECTANCE, ELREPHO, GL. TRAPNRC-PTB ABSOLUTE BASE

L289 96.72 76.42 -.43 .53 .88 650 DIFFUSE REFLBCTANCB, ELREPHO. GL.TRAP, SPECIFIC CALIBRATION

L250T 0 96.85 76.0 3 -.02 .44 .95 65 F DIFFUSE REFLECTANCE, ELREPHO, GL.TRAP, NRC-PTB ABSOLUTE BASE

Li 50 0 96.88 74.76 1.10 -.16 .75 65Q DIFFUSE REFLBC 1ANCEELREPHO. GL.TRAP, ZEISS ABSOLUTB BASE

L236 0 97.19 75.73 .40 .59 .57 65F DIFFUSE REFLECTANCE, ELREPHO, GL.TRAP, NRC-PTB ABSOLUTE BASE

L32 5 0 97.60 76.41 .02 1.28 .95 65 F DIFFUSE REFLECTANCE, ELREPHO. GL.TRAP, NRC-PTB ABSOLUTE BASE

L573 * 98.84 77.61 -.41 2.95 .61 65F DIFFUSE REFLECTANCE, ELREPHO, GL.TRAP, NRC-PTB ABSOLUTE BASE

GMEANS 96.48 75.79

95% ELLIPSE: 1.95 1.66

1.00 WITH GAMMA -60 DEGREES

35
PERCENT

75.0

76.0

77.0

78.

BLUE REFLECTANCE, DIFFUSE. WITH TRAP

SAMPLE E78 = 96-5 PERCENT

i i 1 L SAMPLE J97 = 75.8 PERCENT

J

I I 1 L ^ ,X .» N0T rN GRAND MEANS

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94.5 95.5 96.5

PERCENT

97 .5 98.5

36
RBP0RT NO. S6G IAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS 165 -3 TABLE 1 DIFFUSE BLUE RBPLECTANCE IN PERCENT (NO GLOSS TRAP)

TAPPI SUGGESTED METBOD T52S SU-72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

SAMPLB PRINTING SAMPLE PRINTING TEST D. - 8 LAB E78 116 GRAMS PBF SQUARE METER J97 89 GRAMS PER SQUARE METER

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

LI 15 93.53 -1.44 -1.07 .15 1.10 75.16 -1.33 1.71 .20 1.82 65E 0 LI 1 5

LI 52 94.50 -.47 -.35 .19 1.42 76.41 -.09 -.11 .09 .82 65E 6 LI 52

LI 61 94.88 -.09 -.07 .04 .29 76.97 .48 .62 .07 .58 65E 0 LI 61

LI 73A 95.99 1.02 .76 .16 1.19 77.53 1.04 1.33 .14 1.26 65E 6 L173A

1494 93.22 -1.75 -1.30 .11 . 80 76.66 .16 .21 .10 .89 65E 0 LI 94 L238A 94.53 -.44 -.33 .06 .48 76.87 .38 .48 .05 .48 65E 0 L238A

L241 95.29 .32 .24 .07 .53 74.68 -1.82 2.34 .11 .96 65E 0 L241 L244 95.49 .52 .39 .11 . 87 76.81 .31 .40 .09 .77 65D 0 L244

L251 95.45 .48 . 36 .09 .69 76.66 .16 .21 .11 1.01 65E 0 L251 L255 97.06 2.09 1.56 .11 .82 77.37 .87 1.13 .11 .95 65D 0 L255

L30 5 93.62 -1.35 -1.01 .54 4. 04 75. 86 -.63 -.81 .13 1.20 65D 0 L305

L309 95.95 .98 .73 .17 1.31 76.92 .43 .55 .10 .90 65J 0 L309

L313 96.46 1.49 1.11 .05 .40 75. 80 -.70 -.89 .17 1.50 65E 0 L313

L3 60 95.31 .34 .26 .09 .70 76.59 .10 .13 .13 1.15 65E 0 L360

L3 84 96.24 1.27 .94 .05 .39 76.37 -.12 -.15 .13 1.15 65S 0 L3 84 L484 92.01 -2. 96 -2.20 .13 . 96 77.22 .73 .94 .06 .56 6 5E 0 L4 84

GR. MEAN - 94.97 PERCENT GRAND MBAN • 76.49 PERCENT TEST DETERMINATIONS - 8 SD MEANS - 1.34 PBRCENT SD OF MEANS - .78 PBRCENT 16 LABS IN GRAND MBANS

AVERAGE SDR • .13 PERCENT AVBRAGE SDR - .ii PBRCBNT TOTAL NUMBER OF LABORATORIES REPORTING - 16

Best values: E78 95.2 + 2.0 percent

J97 76.5 jp 1.3 percent

REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T65-3 TABLE 2 DIFFUSE BLUE REFLECTANCE IN PERCENT (NO GLOSS TRAP)

TAPPI SUGGESTED METBOD T52S SU-72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

LAB MEANS COORDINATES AVG CODE F B78 J97 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT- --CONDITIONS

L4 84 0 92.01 77.22 -2. 86 i

04 .76 65E DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, MGO ( ZEISS ) BASE

LI 94 0 93.22 76.66 -1.72 . 35 .85 65E DIFFUSE REFLECTANCE, ELREPH0, NO TRAP, MGO ( ZEISS

)

BASE

LI 15 0 93.53 75.16 -1.57 -i. 17 1.46 65E DIFFUSE REFLECTANCE, ELREPHO. NO TRAP, MGO ( ZEISS

)

BASE

L305 0 93.62 75.86 -1.41 .. 48 2.62 65D DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, NRC- PTB ABSOLUTE

LI 52 0 94.50 76.41 -.47 -• 03 1.12 65E DIFFUSE REFLECTANCE, BLREPHO

,

NO TRAP, MGO ( ZEISS

)

BASE

L2 3 8A 0 94.53 76. 87 -.40 42 .48 65B DIFFUSE RBPLECTANCE, ELREPHO, NO TRAP, MGO ( ZEISS

)

BASE

LI 61 0 94.88 76.97 -.04 . 49 .44 65E DIFFUSE REFLECTANCE, ELREPBO, NO TRAP, MGO ( ZEISS

)

BASE

L24S 0 95.29 74.68 .12 -1. e4 .75 65B DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, MGO ( ZBISS

)

BASE

L360 0 95.31 76.59 .35 . 06 .92 65E DIFFUSB REFLECTANCE, BLREPHO, NO TRAP, MGO ( ZBISS

)

BASE

L251 0 95.45 76.66 .49 • 11 .85 65E DIFFUSE REFLECTANCE, BLREPHO, NO TRAP, MGO ( ZEISS

)

BASE

L244 0 95.49 76.81 .55 . 26 .82 65 D DIFFUSE REFLECTANCE, BLREPHO, NO TRAP, NRC- PTB ABSOLUTE

L309 0 95.95 76.92 1.02 • 32 1.11 65 J DIFFUSB REFLBC TANCE, ELREPHO, NO TRAP, NBS ABSOLUTE

L173A 0 95.99 77.53 1.12 . 92 1.23 65E DIFFUSE REFLBCTANCE, ELREPHO, NO TRAP, MGO ( ZEISS ) BASE

L384 0 96.24 76.37 1.25 25 .77 65 S DIFFUSE REFLECTANCE, ELREPHO, NO TRAP, ABSOLUTE-UNKNOWN BASE

L313 0 96.46 75. 80 1.41 — . 85 .95 65E DIFFUSE REFLBCTANCE, ELREPHO, NO TRAP, MGO ( ZEISS ) BASE L255 0 97.06 77.37 2.17 . 65 .89 65D DIFFUSB REFLECTANCE, BL REP HO, NO TRAP, NBC- PTB ABSOLUTE

GMEANS 94.97 76.49 1.00

95% ELLIPSE: 3.62 2. 18 WITH GAMMA - 6 DEGREES

37
PERCENT

BLUE REFLECTANCE, DIFFUSE, N0 TRAP

SAMPLE E78 = 95-0 PERCENT SAMPLE J97 = 76.5

i i PERCENT

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90 91 92 93 94 95 96

PERCENT

97 98

" 99 100

38
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS Y7S-1 TABLE 1 SPECULAR GLOSS AT 75 DBG REES, IN GLOSS UNITS

TAPPI STANDARD T480. OS-78, SPECULAR GLOSS OF PAPER AND PAPERBOARD AT 75 DEGREES

SAMPLE CAST COATED SAMPLE PRINTING TEST D. - 10 LAB E59 211 GRAMS PBF SQUARE METER J24 116 GRAMS PER SQUARE METER

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

LI 08 85 • 1 .6 .62 1.2 1.16 67.2 . 8 .49 .6 .63 75H 0 LI 08

LI 21 83.8 -.a -.85 .8 .73 64.4 -2.0 -1.17 1.4 1.35 75H 0 LI 21

LI 22 82.9 -1.7 -1.86 1.3 1.24 66.7 .3 .19 1.3 1.24 75H 6 LI 22

LI 28 85.8 1.2 1.39 1.0 .97 63.3 -3.0 -1.82 .9 .94 75G « LI 28

LI 36 85.2 .6 .70 1.0 .90 70.2 3. 8 2.29 .9 .85 75G 0 LI 36

LI 49 80.2 -4.4 -4.90 1.1 1.07 56.1 -10.2 -6.13 2.0 1.94 75G * LI 49

LI 53 85.1 .6 .66 .9 . 89 68.5 2.2 1.30 .9 .90 75G 0 LI 53

LI 62 85.7 1 .1 1.26 1.3 1.25 70.7 4.4 2.61 .6 .56 75G * LI 62 L173A 86.3 1.7 1.95 1.1 1.00 65.5 -. 8 -.50 1.0 .96 75G 0 L173A

LI 82 85.5 1 .0 1.07 .9 .84 67.4 1.1 .66 .5 .52 75H 0 LI 82 U 89 84.7 .2 .18 1.0 .90 60.4 -5.9 -3.52 1.3 1.31 75P X LI 89

LI 90C 83.9 -.7 -.75 1.2 1. 13 64.6 -1.7 -1.04 1.4 1.41 75G 0 L190C

LI 90R 83.5 -1.0 -1.14 .8 .79 66.5 .2 .12 .9 .86 75G 0 LI 90R L206 84.1 -.4 -.47 1.0 . 98 66. 8 . 5 .28 .9 .84 75H 0 L206

L210 85.9 1.3 1.51 1.8 1.74 69.1 2.8 1.66 1.1 1.08 75H 0 L210

L21 1 83.8 - . a -.85 1.3 1.23 66.1 -.2 -.12 1.0 .97 75H 0 L21

1

L212 89.7 5.1 5.77 1.5 1.41 67.9 1.6 .94 3.5 3.47 75P X L212

L2X3 84.6 .0 .04 1.3 1.27 67.9 1.6 .93 1.1 1.11 75B 0 L213

L223 85.0 .4 .49 1.2 1.14 66.3 .0 .01 1.0 .95 75B 0 L223 L224 83.9 -.7 -.79 .8 .79 64.5 -1.8 -1.10 .8 .81 75B 0 L224

L2 30 84.1 -.5 -.52 1.1 1.04 65.1 -1.2 -.74 .6 .56 75B 0 L230

L2S2 84.5 -.0 -.02 1.1 1.05 67.0 .7 .43 1.3 1.26 75G 0 L251 L255 84.9 .3 .38 .6 .54 67.3 1.0 .58 .9 .94 75G 0 L255

L256 84.1 -.5 -.55 .9 . 84 66.7 .4 .24 1.1 1.10 75B 0 L256

L2 62 85.2 .6 .71 .6 .55 68.0 1.7 1.00 .7 .66 75K 0 L262

L2 74 85.2 .7 .77 .6 .60 64.9 -1.4 -.86 1.0 .98 75P 0 L274

L277A 84.5 -.1 -.06 1.2 1.14 66.1 -.2 -.13 .7 .68 75B 9 L277A

L277B 84.8 .2 .23 1.3 1.25 65.9 — 4 -.25 1.1 1.07 75B 0 L2 77B

L278 84.3 -.2 -.24 1.2 1.11 67.8 1.5 .91 1.0 .95 75G 0 L278

L279 83.1 -1.5 -1.65 1.2 1.13 63.4 -2.9 -1.76 1.3 1.25 75G 0 L279

L291 83.4 -1.1 -1.29 1.2 1.17 62.9 -3. 4 -2.06 .9 .85 75B 0 L291

L301 84.2 -.4 -.42 .8 .73 65.9 -.4 -.23 1.1 1.11 75B 0 L301

L31 5 84.9 .3 . 38 1.3 1.21 66.0 -. 3 -.20 1.2 1.14 75G 0 L315

L31 7 85.0 .4 .49 1.3 1.26 65.4 -.9 -.56 1.0 .95 75B 0 L31

7

L3 2 3 83.8 -.8 -.89 1.2 1.16 65. 8 -. 5 -.30 1.2 1.17 75B 0 L323

L328 95.2 10.7 11.98 1.7 1.56 70.8 4.4 2.66 2.8 2.81 75H * L328

L339 85.2 .7 .77 2.7 2.59 58.4 -7.9 -4. 75 3,0 2.95 75P 0 L3 39

L3 72 90.7 6.1 6.89 1.5 1.41 70.0 3.7 2.22 .7 .68 75B X L372

L388 84.3 -.2 -.24 .8 .77 59.6 -6.7 -4.00 1.0 .96 75P tt L388

L396 84.3 -.2 -.24 .7 .70 66.1 -.2 -.14 1.5 1.50 75G 0 L396

L456 84.1 -.5 -.52 1.1 1. 03 65.9 -.5 -.28 .7 .66 75H 0 L4 56 L4 83 84.3 -.2 -.28 1.2 1.15 65.4 -.9 -.54 1.1 1.07 75B 0 L483

L573 82.2 -2.4 -2.66 1.1 1.07 65.0 -1.3 -.80 1.2 1.23 75G « L573

L574 80.2 -4.3 -4. 86 1.4 1.31 63.0 -3.3 -2.00 .4 .39 75G X L574

L583 85.7 1.1 1.26 .9 . 86 65.6 -.7 -.41 .7 .64 75B 0 L583

L587 85.6 1.0 1.16 1.0 .91 68.1 1.

8

1.06 1.0 .98 75B 0 L587

L592 85.1 .6 .66 .8 .72 67.1 .7 .44 1.1 1.09 75B 0 L592

L59 8 83.3 -1.3 -1.41 .9 .82 64.2 -2.2 -1.30 1.0 1.02 75B 0 L598

L643 84.6 .0 .05 .9 .90 66.9 .5 .32 1.0 .98 75H 0 L643

L66 8 85.6 1.0 1.1S 1.3 1.23 66.3 -.1 -.04 1.4 1.39 75G 0 L668

L670 85*0 .5 .52 1.1 1.07 67.7 1.4 .85 1.5 1.50 75B 0 L670

GR* MEAN - 84.6 GLOSS UNITS GRAND MEAN - 66.3 GLOSS UNITS TEST DETERMINATIONS - 10

SD MEANS - .9 GLOSS UNITS SD OF MEANS - 1.7 GL6SS UNITS 43 LABS IN GRAND MEANS AVERAGB SDR - i.i GLOSS UNITS AVERAGE SDR - 1.0 GLOSS UNITS

L2 50 87.3 2.7 3.07 .9 . 89 58.4 -7.9 .4.75 2.1 2.04 75Q . L250

L2 88 83.0 -1.5 -1.70 1.4 1.33 65.7 -.6 ..39 1.3 1.25 751 L288

L32S 84.3 -.3 -.30 .4 .40 64.9 -1.4 -. 86 .3 .31 7SF L321 TOTAL NUMBER OF LABORATORIES REPORTING - 54

Best values: E59 85+2 gloss units

J24 66+3 gloss units

The following laboratories were omitted from the grand means because of extreme test results: 149,

328, 339, 388.

39
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PKOGRAN NeVEMBBR 1973 ANALYSIS 775-1 TABLE 2 SPECULAR GLOSS AT 75 DEGREES, IN GLOSS UNITS

TAPPI STANDARD T480 OS-78, SPECULAR GLOSS OF PAPER AND PAPERBOARD AT 75 DEGREES

LAB CODE F MEANS

E59 J24 COORDINATES

MAJOR MINOR AVG

R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

LX 49 ft 80 3 2 56.1 -u.i 1.1 1.51 75G SPECULAR GL0SS <75 DEGREE ), GARDNBR

L574 X 80* 2 63.0 -4.5 3.1 .85 75 G SPBCULAR GLOSS < 75 DEGREE ), GABDNEK

L573 * 82.2 65. 0 -2.0 1.9 1.15 75G SPECULAR GLOSS <75 DEGREE ), GARDNER

LI 22 0 82* 9 66. 7 -.2 1.7 1.24 75H SPBCULAR GLOSS <75 DBGREE ), HUNTER

L288 83.0 65.7 -1.1 1.3 1.29 751 SPECULAR GLOSS < 75 DBGRBE ). HUNTER, 20 C, 65% RH

L279 6 83.X 63.4 -3.2 .5 1.19 75G SPECULAR GLOSS < 75 DEGREE). GARDNER

L59 8 e 83.3 64.2 -2.4 .6 .92 75H SPECULAR GLOSS <75 DBGRBE ), HUNTER

L293 6 83.4 62.9 -3.6 .1 1.01 75H SPBCULAR GLOSS <75 DEGREB ), HUNTER

Li 90 R 0 83. 5 66. 5 -.1 1.0 .83 75G SPECULAR GLOSS < 75 DBGREE ), GARDNER

L323 0 83.8 65. 8 -.7 .6 1.17 75H SPECULAR GLOSS < 75 DEGREE )

HUNTER

LI 21 0 83. 8 64.4 -2.1 .1 1.04 75 H SPBCULAR GLOSS < 75 DEGREE ), HUNTER

L2XX 0 83.8 66. X -.4 .7 1.10 75 H SPECULAR GLOSS < 75 DEGREE ), HUNTER

L224 0 83.9 64.5 -2.0 .1 .80 75H SPECULAR GLOSS <75 DBGREE ). HUNTBP

LX90C 0 83.9 64. 6 -1.9 .1 1.27 75G SPECULAR GLOSS < 75 DEGREE ), GARDN3E

L256 0 84.X 66.7 .2 .6 .97 75H SPECULAR GLOSS < 75 DBGREE), HUNTER

L4 56 0 84.1 65.9 -.6 .3 .85 75 H SPECULAR GLOSS < 75 DEGREE ), HUNTER

L230 0 84.X 65.X -1.3 .1 .80 75 B SPBCULAR GLOSS <75 DBGRBE ), HUNTER

L206 0 84.X 66.8 .3 .5 .91 75H SPECULAR GLOSS < 75 DEGREE), HUNTER

L30X 0 84.2 65.9 -.5 .2 .92 75B SPECULAR GLOSS < 75 DEGREE ), HUNTER

L32X 84. 3 64.9 -1.4 -.2 .35 75F SPECULAR GLOSS < 75 DEGRBE )» ZEISS BLREPHO, 20C,

L4 83 0 84.3 65. 4 -.9 -.0 1.11 75H SPBCULAR GLOSS < 75 DEGREE ), HUNTER

L396 0 84.3 66.X -.3 .1 1.10 75 G SPECULAR GLOSS < 75 DBGRBE ), GARDNER

L388 * 84.3 59.6 -6.4 -1.8 .87 75P SPECULAR GLOSS < 75 DEGREE), PHCTOVOLT

L278 0 84. 3 67. 8 1 .4 .7 1.03 75G SPBCULAR GLOSS <75 DEGREE ), GARDNER

L277A 0 84.5 66.1 -.2 -.0 .91 75 H SPBCULAR GLOSS < 75 DEGREE ). HUNTER

L251 0 84. 5 67. 0 .7 .2 1.16 75G SPBCULAR GLOSS < 75 DBGRBE ), GARDNER

L2X3 0 e4. 6 67.9 1.5 .4 1.19 75 H SPECULAR GLOSS <75 DEGRBE ), HUNTER

L643 0 84. 6 66.9 .5 .1 .94 75H SPECULAR GLOSS < 75 DEGREE ), HUNTER

LX 89 X 84.7 60.4 -5.6 -1.9 1.10 75 P SPECULAR GLOSS <75 DEGREB ), PHOTOVOLT

L277B 0 84.8 65.9 -.3 -.3 1.16 75 H SPECULAR GLOSS <75 DEGREE ), HUNTER

L2 55 0 84.9 67.3 1.0 -.0 .74 75 G SPECULAR GLOSS < 75 DEGREE ), GAFDNBR

L3X 5 0 84.9 66. 0 -.2 -.4 1.18 75 G SPECULAR GLOSS < 75 DBGREE ), GARDNER

L2 2 3 0 85.0 66.3 .1 -.4 1.05 75 H SPECULAR GLOSS < 75 DEGREB ), HUNTER

L3X7 0 85.0 65. 4 -.8 -.7 1.11 75B SPBCULAR GLOSS < 75 DEGREE ), HUNTER

L670 0 85.0 67.7 1.5 -.0 1.28 75 B SPECULAR GLOSS < 75 DEGREE ), HUNTER

LI 0 8 0 85.X 67.2 1.0 -.3 .90 75 B SPECULAR GLOSS < 75 DEGREE ), HUNTER

LX 53 0 85.X 68.5 2.2 .1 .90 75G SPBCULAR GLOSS <75 DEGREE ), GARDNER

L592 0 85.X 67. X .9 -.3 .91 75B SPBCULAR GLOSS < 75 DEGREE ). HUNTER

LX 3 6 0 85.2 70.2 3.8 .5 .88 75G SPECULAR GLOSS < 75 DEGREE ), GAFDNBR

L262 0 85.2 68.0 1.8 -.1 .61 75 K SPECULAR GLOSS < 75 DEGREE ), GAERTNBR ( K-C TYPB

L339 ft 85.2 58.4 -7.4 -3.0 2.77 75P SPECULAR GLOSS < 75 DEGREB ), PHOTOVOLT

L2 74 0 05.2 64.9 -1.2 -1.1 .79 75 P SPBCULAR GLOSS < 75 DEGRBE ), PH0T6V0LT

LX 82 0 85. 5 67.4 1.3 -.6 .68 75B SPBCULAR GLOSS < 75 DEGREE ), HUNTER

L66 8 0 85.6 66.3 .2 -1.0 1.31 75G SFBCULAR GLOSS < 75 DEGREE ), GARDNBR

L587 0 es. 6 68, X 2.0 -.5 .95 75 B SPECULAR GLOSS <75 DBGREE ), HUNTBR

LX 62 * 85. 7 70.7 4.5 .2 .90 75G SPECULAR GLOSS < 75 DEGREE ), GARDNER

L5 83 0 85.7 65. 6 -.3 -1.3 .75 75B SPECULAR GLOSS <75 DEGREE ), HUNTBR

LX 2 8 * 85. 8 63.3 -2.5 -2.1 .96 75G SPBCULAR GLOSS < 75 DEGREB ), GAFDNBR

L2 X 0 0 85.9 69. X 3.0 -.5 1.41 75B SPBCULAR GLOSS < 75 DEGRBE )

HUNTER

LX7 3A 0 86. 3 65.5 -.3 -1.9 .98 750 SPBCULAR GLOSS < 75 DEGREE ), GARDNBR

L250 87.3 58. 4 -6.8 -5.0 1.47 75Q SPBCULAR GLOSS < 75 DEGRBE ), PHCTOVGLT. 20 C, 65%

L2X2 X 89.7 67.9 3.0 -4.4 2.44 75 P SPECULAR GLOSS <75 DEGREB ), PHOTeVOLT

L372 X 90.7 70.0 5.4 -4.8 1.04 75 B SPBCULAR GLOSS < 75 DEGRBE ), BAUSCH L0MB

L328 ft 95.2 70. 6 7.4 -8.9 2.1 8 75 B SPBCULAR GLOSS < 75 DBGREE ), BUNTBR

GMEANS

84.6 66.3

95% ELLIPSB: 4.5 ro • o 1.00 WITH GAMMA - 72 DEGREES

40
GL0SS

UNITS

SPECULAR GL0SS . 75 DEGREE

SAMPLE E59 = 84.6 GLOSS UNITS SAMPLE J24 = 66-3 GLOSS UNITS

GL0SS UNITS

41
RBP0RT N0. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T90-1 TABLE 1 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T411 OS-76 SAMPLE PRINTING • y SAMPLE PRINTING TBST tJ • a o LAB J65 93 GRAMS PEE SQUARE METER J81 73 GRAMS[ PER SQUARB METBR

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

LX 0 5 6.448 .096 .94 .110 1. 11 2.754 .044 .51 .030 .71 90Q 0 LX 05

Li 22 6.240 -.112 -1.09 .107 1.08 2.590 -.120 -1.40 .057 1.36 90V 6 LI 22 LX2 3F 6.445 .093 .91 .263 2.64 2.895 .185 2.15 .044 1.05 90F 6 LX23F

LX 25 6.788 .436 4.26 .111 1.12 2.622 -.088 -1.03 .044 1.06 90T * LX 25

LX 28 6.308 -.044 -.43 .154 1.54 2.712 .002 .02 .023 .56 90T 6 LX 28

LX 41 6.223 -.129 -1.26 .082 .82 2.693 -.017 -.20 .052 1.24 90T 0 LX 4!

LX 53 6. X 45 -.207 -2.02 .085 .86 2.785 .075 .87 .022 .53 90T * LX 53

LX 62 6.3X0 -.042 -.41 .120 1.20 2.680 -.030 -.35 .042 1.01 90D 6 LX 62

LX 66 6.450 .098 .56 .067 .67 2.760 .050 .58 .026 .63 90T 0 LX 66 LX73B 6.460 .108 1.06 .052 .52 2.800 .090 1.04 .000 .00 90F 0 LX73B

LI 82 6.332 -.020 -.20 .089 *. .89 2.663 -.047 -.55 .033 .80 90L 0 LX 82

LX 83 6.288 -.064 -.62 .065 .66 2.794 .084 .98 .028 .67 90T 0 LX 83 LX90C 6.260 -.092 -.90 .097 .97 2.630 -.080 -.94 .082 1.97 90T 0 LX90C

L203A 6.4X0 .ose .57 .152 1.53 2.690 -.02 0 -.24 .057 1.36 90T 0 L203A

L203C 6.220 -.132 -1.29 .127 1.28 2.655 -.055 -.65 .069 1 .64 90T 0 L203C

L2X 2 6.483 .131 1.28 .077 .77 2.730 .020 .23 .047 1.13 90T 0 L2X2

L2X 3 6.480 .128 1.25 .092 .92 2.770 .060 .70 .048 1.16 90T 0 L2X3

L223 6.508 .156 1.52 .055 . 55 2.786 .076 .88 .025 .60 90V 0 L223

L22 8 6.350 -.002 -.02 .118 1.18 2.740 .030 .35 .070 1.67 90T 0 L228

L238A 6. 300 -.052 -.51 .038 .38 2.596 -.114 -1.33 .018 .44 90T 0 L238A

L2 4X 6.3X0 -.042 -.41 .088 .88 2.845 .135 1.57 .064 1.54 90T 0 L24I L249 6.3X9 -.033 -.32 .053 .53 2.720 .010 .11 .029 .69 90T 0 L249

L2 60 6.389 .037 .36 .064 .64 2.676 -.034 -.40 .034 .82 90T 0 L260

L2 6X 6.470 .118 1.15 .061 .61 2.789 .079 .92 .027 .65 90T 0 L26X

L2 62 6.400 .048 .47 .033 .33 2.640 -.070 -.82 .046 1.10 90T 0 L262

L274 6.380 .028 .28 .042 .42 2.950 .240 2.79 .053 1.26 90D * L274

L285 6.2 60 -.092 -.90 .171 1.72 2.570 -.140 -1.64 .095 2.27 90T 0 L2 85 L29X 6.495 .143 1.40 .098 .99 2.820 .110 1.28 .063 1.51 90T 0 L29X

L30 5 6.270 -.082 -. 80 .195 1.95 2.615 -.095 -1.11 .078 1.88 90T 0 L305

L309 6.250 -.102 -.99 .135 1.36 2.520 -.190 -2.22 .03 5 .84 90T 0 L309

L31 8 6.340 -.012 -.11 .107 1.08 2.620 -.090 -1.05 .054 1.29 90T 0 L3X8

L323 6.X 68 -.1 84 -1.79 .082 . 82 2.548 -.162 -1.89 .044 1.05 90T 0 L323

L324 6. 390 .038 .37 .088 . 88 2.710 -.000 -.00 .039 .94 90T 0 L324

L32 6 6.455 .103 1.01 .069 .69 2.720 .010 .11 .026 .62 90T 0 L326

L32 8 6.400 .04e .47 .105 1.06 2.740 .030 .35 .084 2.02 90T 0 L32 8

L331 6.492 .140 1.37 .220 2.21 2. 800 .090 1.04 .027 .64 90T 0 L33I L339 6.337 -.015 -.14 .064 .65 2.687 -.023 -.27 .015 .36 90T 0 L339

L352 6.446 .094 .92 .081 .82 2.729 .019 .22 .038 .90 90Q 0 L352

L356 6. 3 X-.041 -.40 .104 1.04 2.696 -.014 -.17 .020 .48 90T 0 L356

L358 6.3X0 -.042 -.41 .115 1.15 2.714 .004 .04 .031 .73 90T 0 L358

L376 6.540 .188 1. 84 .084 .85 2.740 .030 .35 .052 1.24 90T 0 L376

L380 6.385 .033 .32 .088 .89 2.800 .090 1.04 .000 .00 90T 0 L380

L3 82 6.5X5 .163 1.59 .053 .53 2.720 .010 .11 .026 .62 90T 0 L382

L390 6.328 -.024 -.23 .108 1.08 2.740 .030 .35 .041 .98 90T 0 L390

L556 6.306 -.046 -.45 .170 1.71 2.610 -.100 -1.17 .029 .70 90T 0 L556

L557 6.270 -.082 -.80 .125 1. 26 2.630 -.080 -.94 .082 1.97 90T 0 L557

L560 5. 911 -.441 -4. 30 .054 .54 2.294 -.416 -4. 85 .050 1.21 90T * L560

L567 6.2C0 -.152 -1.48 .141 1.42 2.680 -.030 -.35 .042 1 .01 90V 0 L567

L574 6.2X6 -.1 36 -1.32 .051 .51 2.729 .01 9 .22 .029 .69 90V 0 L574

L58X 6.475 .123 1.20 .136 1.36 2.800 .090 1.04 .041 .98 90T 0 L58X L585 6.440 .088 .86 .052 .52 2.700 -.010 -.12 .000 .00 90T 0 L585

L5 87 6.3X0 -.042 -.41 .057 .57 2.710 -.000 -.00 .057 1.36 90T 0 L587

L62 6 6.1 60 -.192 -1. 87 .069 .69 2.578 -.132 -1.54 .048 1.14 90T 0 L626

L679 6.295 -.057 -,SS .050 . 50 2.670 -.040 -.47 .042 1.01 90T 0 L679

GR. MEAN - 6.352 MILS GRAND MEAN - 2.710 MILS TBST DBTBRM INATI0NS - 10 SD MEANS - . X 02 MILS SD 0F MEANS - .086 MILS 52 LABS IN GRAND MEANS

AVERAGE SDR - .100 MILS AVERAGE SDR - ,042 MILS

GR. MEAN -X6X.33 MIC B0METER GRAND MEAN * 68.84 MICR0MBTBR

42
REPORT NO. 56G TAPPI COLLABORATIVE RBFBRENCB PROGRAM NOVEMBER 1978 ANALYSIS T90-1 TABLE 1 TB ICINESS ( CALIPER ), THOUSANDTHS OF AN INCH TAPPI STANDARD TAll OS-76 SAMPLE PRINTING

LAB J65 93 GRAMS PBfi SQUARE METBR

CODE MBAN DEV N.DBV SDR R. SDR

LI 85 6.220 -.132 -1.29 .063 .63

L20 3B 6.270 -.082 -. 80 .170 1.71 L2420 6.328 -.024 -.24 .028 .28

L242P 6.300 -.052 -.50 .086 . 86

L251 6.233 -.119 -1.16 .061 .61 L274C 6.350 -.002 -.02 .053 .33

L3 44 6.210 -.142 -1.38 .074 .74 L396M 60. 600 54.248 529.30 1.430 14.35

L4 84 6.142 -.210 -2.05 .149 1.50

L5 63 .001 -6.351 -61.97 .000 .00 L576 6.013 -.339 -3.31 .041 .41

L61 6 1 50.700 144.348 1408.40 1.252 12.56 TOTAL NUMBER OF LABORATORIES REPORTING • 66

Best values: J65 .6 .36 + 0.,15 mils

J81 2 .70 + 0..14 mils

SAMPLB

J81 PRINTING

73 GRAMS PER SQUARE MBTBR

TEST D. 10 MBAN DBV N.DBV SDR R. SDR VAR F LAB

2.640 -.070 -.82 .052 1.24 90B LI 85 2.530 -.180 • 2.10 .095 2.27 90C L203B

2.671 -.039 -.46 .081 1.93 900 L2420

2.715 .004 .05 .022 .54 90P L242P

2.703 -.008 -.09 .020 .49 90W L251 2.970 .260 3.03 .048 1.16 90C » L274C

2.640 -.070 -.82 .052 1.24 90U L344 26.600 23.890 278.54 .516 12.36 90S L396M

2.736 .026 .30 .221 5.28 90E L4 64 .000 -2.710 -31.60 .000 .00 90U L563 2.910 .200 2.33 .031 .75 90C L576 65.600 62.890 733.25 .516 12.36 90C L616

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

560.

43
REPORT N6. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS 190 -1 TABLE 2 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH

TAPPI STANDARD T411 OS-76

LAB CODE F MEANS

J65 J 81 COORDINATES

MAJOR MINOR AVGR. SDR VAK PROPERTY TEST INSTRUMENT- —CONDITIONS

L563 .001 .000 -6.733 1.530 .00 90 U THICKNESS (CALIPER ). TMI, HAND DRIVBN

L560 * 5.911 2.294 -.601 -.079 .87 90T THICKNESS ( CALIPER ), TMI, MOTOR DRIVBN

L57 6 6.013 2.910 -.157 .360 .58 90C THICKNESS (CALIPER ), CADY, HAND DRIVBN

LA 84 6.142 2.736 -.155 .144 3.39 90E THICKNESS (CALIPBR ), SCH0PPER , HAND DRIVBN

LI 53 * 6.145 2.785 -.124 .182 .69 90 T THICKNESS (CALIPER )» TMI, MOTOR DRIVBN

L626 6.160 2. 578 -.233 .005 .91 90T THICKNESS ( CALIPER ), TMI, MOTOR DRIVBN

L323 0 6.168 2.548 -.244 -.024 .93 90T THICKNESS (CALIPER). TMI, MOTOR DRIVBN

L567 0 6.200 2.680 -.141 .064 1.21 90V THICKNESS ( CALIPER ), TMI, MOTOR DRIVBN, DIGITIZED

L344 6.210 2.640 -.156 .026 .99 900 THICKNESS ( CALIPER ), TMI, HAND DRIVBN

L574 0 6.216 2.729 -.099 .095 .60 90V THICKNESS ( CALIPER ). TMI, MOTOR DRIVBN, DIGITIZED

L203C 0 6.220 2. 655 -.139 .032 1.46 90T THICKNESS ( CALIPBR ), TMI, MOTOR DRIVBN

LI 85 6.220 2.640 -.148 .020 .94 90B THICKNESS (CALIPER ). AMTHOR, HAND DRIVBN

LS 41 0 6.223 2.693 -.114 .061 1.03 90T THICKNBSS (CALIPER ), TMI , MOTOR DRIVBN

L251 6.233 2.703 -.101 .064 .55 90R THICKNESS (CALIPBR ). L W, MOTOR DRIVBN, 20 C, 65%

LI 22 0 6.240 2.590 -.161 -.032 1.22 90V THICKNESS ( CALIPER ), TMI, MOTOR DRIVBN, DIGITI ZED

L309 0 6.250 2. 520 -.194 -.094 1.10 90 T THICKNBSS (CALIPBR ). TMI, MOTOR DRIVBN

L190C 0 6.260 2.630 -.121 -.011 1.47 90T THICKNBSS ( CALIPER ), TMI, MOTOR DRIVBN

L285 0 6.260 2.570 -.157 -.0 60 1.99 90T THICKNESS (CALIPER ), TMI, MOTOR DRIVEN

L203B 6.270 2.530 -.172 -.098 1.99 90C THICKNBSS ( CALIPBR ), CADY, HAND DRIVBN

L557 0 6.270 2.630 -.113 -.017 1.61 90T THICKNESS ( CALIPER ). TMI, MOTOR DRIVBN

L305 0 6.270 2.615 -.122 -.029 1.91 90T THICKNBSS ( CALIPBR ), TMI, MOTOR DRIVBN

LI 83 0 6.288 2.794 -.003 .105 .66 90T THICKNESS ( CALIPER ), TMI, MOTOR DRIVBN

L67 9 0 6.29 5 2.670 -.070 .001 .75 90T THICKNBSS ( CALIPER ), TMI , MOTOR DRIVBN

L238A 0 6.300 2.596 -.109 -.062 .41 90T THICKNBSS ( CALIPER ). TMI, MOTOR DRIVBN

L242P 6.300 2.715 -.039 .034 .70 90 P THICKNBSS ( CALIPER ), MESSMBR, MOTOR DRIVBN, ISO R534

L556 0 6.306 2.610 -.096 -.054 1.21 90T THICKNESS (CALIPER ). TMI, MOTOR DRIVBN

LI 28 0 6.30 8 2.712 -.034 .027 1.05 90T THICKNESS (CALIPER ). TMI, MOTOR DRIVBN

L587 0 6.310 2.71 0 -.034 .024 .96 90T THICKNBSS (CALIPER ), TMI, MOTOR DRIVBN

LI 62 0 6.310 2.680 -.052 -.000 1.11 90D THICKNBSS (CALIPBR ), CADY, MOTOR DRIVBN

L241 0 6.310 2.845 .045 .134 1.21 90 T THICKNESS ( CALIPER ), TMI, MOTOR DRIVBN

L358 0 6.310 2.714 -.032 .027 .94 90 T THICKNESS ( CALIPER ), TMI, MOTOR DRIVBN

L356 0 6.311 2.696 -.041 .012 .76 90T THICKNBSS ( CALIPBR )» TMI, MOTOR DRIVBN

L249 0 6.319 2. 720 -.021 .027 .61 90 T THICKNESS ( CALIPER ), TMI, MOTOR DRIVBN

L2420 6.328 2.671 -.042 -.017 1.10 900 THICKNESS (CALIPBR ), MBSSMBR, MOTOR DRIVBN, BS3983

L390 0 6.328 2.740 -.002 .038 1.03 90 T THICKNBSS ( CALIPBR ), TMI, MOTOR DRIVBN

LI 82 0 6. 332 2.663 -.044 -.026 .84 90L THICKNESS ( CALIPBR ). L W, MOTOR DRIVEN

L339 0 6.337 2.687 -.026 -.010 .50 90T THICKNESS ( CALIPBR ), TMI, MOTOR DRIVBN

L31 8 0 6.340 2.620 -.063 -.066 1.18 90 T THICKNESS (CALIPBR ), TMI, MOTOR DRIVBN

L228 0 6.350 2.740 .016 .025 1.43 90T THICKNESS ( CALIPBR ). TMI, MOTOR DRIVBN

L274C 6.350 2.970 .151 .211 .84 90C THICKNBSS (CALIPER ), CADY, HAND DRIVBN

L2 74 « 6.380 2.950 .163 .178 .84 90D THICKNBSS (CALIPBR ), CADY, MOTOR DRIVBN

L380 0 6.38 5 2.800 .079 .053 .44 90T THICKNESS ( CALIPBR ), TMI, MOTOR DRIVBN

L2 60 0 6.389 2.676 .010 -.050 .73 90T THICKNESS ( CALIPBR ), TMI, MOTOR DRIVBN

L324 0 6.390 2.71 0 .031 -.023 .91 90T THICKNESS (CALIPBR ). TMI, MOTOR DRIVBN

L262 0 6.400 2.640 -.002 -.085 .72 90T THICKNBSS ( CALIPBR ), TMI, MOTOR DRIVBN

L32 8 0 6.400 2.740 .056 -.004 1.54 90T THICKNBSS ( CALIPBR ). TMI, MOTOR DRIVBN

L203A 0 6.41 0 2.690 .035 -.051 1.44 90T THICKNBSS ( CALIPER ), TMI, MOTOR DRIVBN

L585 0 6.440 2.700 .065 -.060 .26 90 T THICKNBSS ( CALIPBR ). TMI , MOTOR DRIVBN

LI 23F 0 6.445 2.895 .184 .095 1.84 90F THICKNBSS ( CALIPER ), FBDBRAL , MOTOR DRIVBN

L352 0 6.446 2.729 .087 -.040 .86 900 THICKNESS ( CALIPER ). BMVBC0. MOTOR DRIVBN

LI 05 0 6.44 8 2.754 .104 -.021 .91 900 THICKNESS ( CALIPBR ). BMVBC0, MOTOR DRIVBN

LI 66 0 6.450 2.760 .109 -.017 .65 90 T THICKNBSS ( CALIPBR ), TMI, MOTOR DRIVBN

L326 0 6.45 5 2. 72 0 .089 -.053 .65 90 T THICKNBSS ( CALIPER ), TMI, MOTOR DRIVBN

LI 73B 0 6.460 2. 800 .140 .009 .26 90 F THICKNESS ( CALIPER )» FBDBRAL, MOTOR DRIVBN

L261 0 6.470 2.789 .142 -.006 .63 90 T THICKNBSS ( CALIPBR ). TMI, MOTOR DRIVBN

L581 0 6.47 5 2. 800 .152 .000 1.17 90T THICKNBSS ( CALIPBR ), TMI , MOTOR DRIVEN

L2 1 3 0 6.480 2.770 .139 -.027 1 .04 90T THICKNBSS ( CALIPER ). TMI, MOTOR DRIVBN

L2 1 2 0 6.483 2.730 .118 -.061 .95 90T THICKNESS (CALIPBR ), TMI, MOTOR DRIVBN

L331 0 6.492 2.800 .166 -.010 1.42 90T THICKNBSS ( CALIPBR ), TMI, MOTOR DRIVBN

L291 0 6.495 2.820 .180 .005 1.25 90T THICKNBSS ( CALIPBR ). TMI, MOTOR DRIVBN

L223 0 6.508 2.786 .171 -.030 .58 90V THICKNBSS (CALIPBR ), TMI, MOTOR DRIVBN, DIGITIZED

L3 82 0 6.515 2.720 .138 -.088 .57 90 T THICKNBSS (CALIPER ), TMI, MOTOR DRIVBN

L376 0 6.540 2.740 .170 -.086 1.04 90T THICKNESS ( CALIPBR ). TMI, MOTOR DRIVBN

LI 25 * 6.788 2.622 .301 -.327 1.09 90T THICKNBSS ( CALIPER ), TMI, MOTOR DRIVBN

L396M 60.600 26. 600 57.949- 12.472 13.35 90S THICKNBSS ( CALIPBR ). SCH0PPBR

, HAND DRIVBN

L61 6 1 50.700 65.600 153.797-33.736 12.46 90C THICKNBSS ( CALIPER ), CADY, HAND DRIVBN

GMEANS

6.352 2.710

95% ELLIPSB: .301 .1 59 1.00 WITH GAMMA - 35 DEGREES 44
MICROMETER

THICKNESS (CALIPER)

SAMPLE J65 = 6-35 MILS

SAMPLE J65 = 161-3 MICROMETER

SAMPLE J81 = 2.71 MILS

SAMPLE J81 = 68-8 MICROMETER

® . CD

CD . CD

<NJ. CD

O

CD

'

152 154 156 158 160 162 164 166 168 170

MICROMETER

45
REPORT NO. 56G TAPPI COLLABORATIVE REFERENCE PROGRAM NOVEMBER 1978 ANALYSIS T95-1 TABLE 1 GRAMMAGE (MASS PER UNIT ARBA

)

TAPPI STANDARD T410 OS-68 SAMPLE PRINTING SAMPLE C6ATBD BOOK TEST D. ' 10 LAB D30 92 GRAMS PER SQUARE METER D31 74 GRAMS PER SQUARE METER

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

LI 21 92.60 -.26 -.65 .92 1.15 76.98 .71 1.35 .44 .61 95B 0 LI 21

LI 62 93.24 .37 .94 1.60 1.99 77.48 1.21 2.29 1.96 2.72 95K e LI 62 L213 92.67 -.20 -.50 .91 1.13 76.16 -.11 -.21 .61 .85 95F 0 L213

L249 92.90 .03 .09 .76 .95 75.55 -.72 -1.38 .37 .52 951 6 L249

L274 93.20 .33 .84 .63 .79 76.50 .23 .43 .53 .73 95B 0 L274

L2 80 92.40 -.47 -1.17 1.04 1.29 76.13 -.14 -.27 .65 .90 95T 0 L2 80 L30 5 92.98 .11 .29 .39 .48 76.25 -.02 -.04 .58 .80 95T e L305

L339 93.49 .62 1.57 .34 .42 76.44 .17 .32 .14 .20 95T e L339

L342 93.16 .29 .73 .94 1.17 75.97 -.30 -.57 .67 1.21 95C 0 L342

L344 93.27 .40 1.02 .22 .28 76.54 .27 .51 .12 .16 95T 6 L344

L557 93.09 . 23 .57 .55 .69 76.07 -.21 -.39 .65 .90 95C 0 L557

L55 9 90.08 -2.79 -7.01 .59 .73 74.04 -2.23 -4.25 .33 .46 95K • L559

L567 5.59 -87.27 -219.61 .05 .06 4.62 -71 .66 -136.23 .04 .06 95B * L567

L574 92.48 -.39 -.97 .56 .70 76.37 .10 .18 .54 .75 95D o L574

L597 92.22 -.65 -1.62 1.58 1.97 75.92 -.35 -.67 1.96 2.72 95C 0 L597

L61 6 92.41 -.46 -1.15 .81 1.01 75.46 -.81 -1.55 .69 .95 95T 0 L616

GR. MEAN - 92.87 G/SQ.METEK GRAND MEAN - 76.27 G/SQ. MBTBR TEST DETERMINATIONS - 1< SD MEANS * .40 G/SQ.MBTEH SD OF MEANS - .53 G/SQ. MBTBR 14 LABS IN GRAND MEANS AVERAGE SDR -

• 80 G/SQ. MBTBR AVERAGE SDR - .72 G/SQ. METER TOTAL NUMBER OF LABORATORIES RBPORIING • 16

Best values: D30 92.9 + 0.6 grams per square meter

D31 76.3 + 0.9 grams per square meter

The following laboratories were omitted from the grand means because of extreme test results: 559.

Data from the following laboratories appear to be

off by a multiplicative factor: 567.

REPORT NO. 56G IAPPI COLLABORATIVE REFERENCE PROGRAM NOVBMBBR 1978 ANALYSIS T95-1 TABLE 2 G RAM MAG B (MASS PER UNIT AREA)

TAPPI STANDARD T410 OS-68 LAB CODE F MEANS

D30 D31 COORDINATESMAJOR MINOR

AVG

R. SDR VAR PK0PBRTY-- -TEST INSTRUMENT CONDITIONS

L567 * 5.59 4.62 -103.27 45.69 .06 95B BASIS WEIGHT ( GRAMMAGE )

.

GUILLOTINE TYPE CUTTBR

L559 ft 90.08 74.04 -3.25 1.48 .59 95 K BASIS WEIGHT ( GRAMMAGE ) 0 WEIGHED AS RBCBIVED

L59 7 0 92.22 75.92 -.61 .42 2.34 95C BASIS WBIGHT ( GRAMMAGE ), CUTTING BOARD

L2 80 0 92.40 76.13 -.34 .35 1.09 95 T BASIS WBIGHT ( GRAMMAGE ), TBMPLATE CUT

L61 6 0 92.41 75.46 -.93 .04 .98 95T BASIS WBIGHT ( GRAMMAGB ). TEMPLATE CUT

L574 0 92.48 76.37 -.09 .39 .72 95D BASIS WEIGHT ( GRAMMAGB ), DIB CUT

LI 21 0 92.60 76.98 .52 .55 .88 95B BASIS WBIGHT (GRAMMAGB ). CONCORA CUTTBR

L213 0 92.67 76.16 -.19 .13 .99 95 F BASIS WEIGHT ( GRAMMAGE ), FOUR-SQUARB CUTTBR

L249 0 92.90 75.55 -.63 -.36 .73 951 BASIS WBIGHT ( GRAMMAGB ). INGBNTO PAPBR CUTTBR

L305 0 92.98 76.25 .03 -.11 .64 95T BASIS WBIGHT ( GRAMMAGB ) # TBMPLATE CUT L557 0 93.09 76.07 -.08 -.30 .79 95 C BASIS WEIGHT ( GRAMMAGB ) # CUTTING BOARD

L342 0 93.16 75.97 -.14 -.40 1.19 95C BASIS WBIGHT ( GRAMMAGB ) # CUTTING BOARD

L274 0 93.20 76.50 .35 -.20 .76 95 B BASIS WEIGHT ( GRAMMAGB ), CONCORA CUTTBR

LI 62 0 93.24 77.48 1.25 .21 2.35 95 K BASIS WEIGHT ( GRAMMAGE ) # WBIGHED AS RBCBIVBD

L344 0 93.27 76. 54 .42 -.24 .22 95T BASIS WBIGHT ( GRAMMAGB ), TEMPLATB CUT

L339 0 93.49 76.44 .43 -.48 .31 95T BASIS WEIGHT ( GRAMMAGE ) , TEMPLATE CUT

GMEANS

:

92.87 76.27

95* ELLIPSE: 1.63 .99

1 .00 WITH GAMMA - 631 DEGREES

46
G/SQ.

METER

75*0

76.0

77.0

78.

GRAMMAGE (MASS PER UNIT AREA)

SAMPLE D30 = 92.9 G/SQ. METER

l i i SAMPLE D31 = 76.3 G/SQ. METERJ l I l _ +,X.« N0T IN GRAND MEANS

CO

<=> ANALYSIS T95-1

LiJ

CE

CO

©

©

©

©

©

©

©"

©

©

©

© ©

3

©

SAMPLE D30

91 .5 92.5 93.5

G/SQ.METER

94.5

47
REPORT N0. 56

G

TAPPI COLLABORATIVE RBFBRENCB PROGRAM NOVEMBER 1978

SUMMARY TABLB

SAMPLE GRAND SD OF AVER REPL LABS LABS BBPL TEST METHOD CODE MBAN MEAN SDR CEP INCL FAKTIC TAPPI REPEAT EEPR0D AIR RESISTANCE, GURLEY J46 12*30 .71 .92 10 50 56 10 .80 1.97

T40-1 GURLEY UNITS J48 30 • 94 1 .56 1.74 1.52 4.37

AIR RESISTANCE, SHEFFIELD J46 222*3 12.7 12.2 10 35 40 10 10.7 35.3

T40-2 SHBFF. UNITS J48 104.5 s.e 4.6 4.0 16.1 AIR RESISTANCE, GURLEY HG FLOTATION E82 1684. 244. 532. 10 12 14 10 466. 677.

T4S -1 SBC/10 CC B47 1549. 166. 336. 295. 461. SM60THNESS, PARKER PRINTSURF J49 6.12 .52 .09 10 9 9 10 .08 1.44

T44-1 MICRONS J73 4.49 .41 .12 .11 1.13 SMOOTHNESS

,

SHEFFIELD J49 274.9 10.7 7.0 15 81 84 10 6.1 29.7

T4 5-1 SHEFF. UNITS J73 87.0 7.5 5.2 4.5 21.0 SMOOTHNESS, BERK J49 9.94 .60 • 56 15 8 13 10 .49 1.70 T45-2 BEKK SBCeNDS J73 66.08 14.62 5.74 5.03 40.59

SMOOTHNESS, BBNDTSEN J49 465.8 19.0 33.4 10 8 8 10 29.3 52.7

T47-1 ML/M IN J73 104.3 11.1 e.2 7.2 30.8 KAN INK ABSORPTION H59 63.75 5.60 .44 4 9 11 4 .61 15.52

T56-1 KAN UNITS B80 24.53 2.79 .56 .78 7.74

PH, COLD . Jie 4.664 .081 .025 5 4 6 2 .050 .229

T57-1 PH UNITS J 62 5.535 .064 .041 .081 .187

PH, HOT J18 4.321 .185 .027 5 4 4 2 .053 .513 T57-2 PH UNITS J62 4. 974 .197 .054 .105 .552 OPACITY, BAL TYPB, 89% BACKING K23 95.42 .42 .28 10 65 78 5 .34 1.18

TOO -l PBRCENT J58 92.69 .57 .34 .42 1.62 OPACITY, BAL TYPE, PAPER BACKING K23 95.89 .16 .30 10 5 5 5 .37 .52 T60-2 PERCENT J58 93.09 .34 .35 .44 .99 OPACITY, ELREPBO TYPE, PAPBR BACKING K23 96.30 .16 .14 10 13 15 5 .18 .47 T60-3 PERCENT J 58 93.55 .20 .20 .24 .59 BLUE REFLECTANCE, DIRECTIONAL B78 96. 30 .45 .10 8 15 39 6 .12 1.25

T6 5-1 PERCENT J97 75.91 .50 .15 .17 1.40

BLUB REFLBCTANCE. DIFFUSE, WITH TRAP B78 96.48 .59 .10 8 13 15 6 .12 1.63

T65-2 PERCENT J97 75.79 .64 .17 .19 1.77

BLUE REFLECTANCE. DIFFUSE, NO TRAP E78 94.97 1.34 .13 8 16 16 6 .15 3.72

T6 5-3 PERCENT J97 76.49 .78 .11 .13 2.15 SPECULAR GLOSS, 75 DEGREB B59 84.6 .9 1.1 10 43 54 5 1.3 2.6 T75-S GLOSS UNITS J24 66.3 1.7 1.0 1.3 4.7 THICKNBSS (CALIPER) J65 6. 352 .102 .100 10 52 66 10 .087 .284

T90-1 MILS J81 2.710 .086 .042 .037 .238 GRAMMAGE (MASS PER UNIT AREA) D30 92.87 .40 .80 10 14 16 3 1.29 1.54

T95-X G/SG. METER D31 76.27 .53 .72 1.15 1.75

48
NBS-1 I4A (REV. 8-78)

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO.

TAPPI CRP 56G

2. Gov’t 3. ftecijjtent'i Ac«$sion No.

4. TITLE AND SUBTITLE

Technical Association of the Pulp and Paper Industry

COLLABORATIVE REFERENCE PROGRAM FOR PAPER

Report //56G

5. Publication Date

7. AUTHOR(S) 8. Performing Organ. Report No. R. G. Powell, J. Horlick NBSIR 79-1360

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, DC 20234

11. Contract/Grant No.

12. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS (Street, City. State, ZIP) Collaborative Testing Services, Inc., 9241 Wood Glade Drive,

Great Falls, Virginia 22066; and Technical Association of

the Pulp and Paper Industry

13. Type of Report & Period Covered FINAL

H. Sponsoring Agency Code

: 15. SUPPLEMENTARY NOTES

| 1 Document describes a computer program; SF-185, FIPS Software Summary, is attached.

16. ABSTRACT (A 200-word or leas factual summary of moat aigni ficant 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

BCX) For Official Distribution. Do Not Release to NTIS

I | Order From Sup. of Doc., U.S. Government Printing Office, Washington, DC

20402, SD Stock No. SN003-003-

I | Order From National Technical Information Service (NTIS), Springfield, VA. 22161

19. SECURITY CLASS

(THIS REPORT)

UNCLASSIFIED

20. SECURITY CLASS

(THIS PAGE)

UNCLASSIFIED

21. NO. OF

PRINTED PAGES

55

22. Price

U S COMM- D C
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