HstR' 79-

/ 3*7

TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 55G

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

FKBG-API Containerboard ( 4

8

Mullen burst of linerboard

Concora test of medium

Smoothness

Surface pick strength

K & N ink absorption

pH

Opacity

Blue reflectance (brightness)

Specular gloss, 75°

Thickness

Concoia (flat crush)

Ring crush

times per year)

MCCA Color and Appearance (4 times per year)

Gloss at 60°

Color and color difference

Re trore fleet ivity

Rubber (4 rimes per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

ASTM Textiles (3 times per year)

Flammability (FF3-71 and FF5-74)

ASTM Cement (2 times per year)

Chemical (11 chemical components)

Physical (8 characteristics)

AASHTO Bituminous

Asphalt cement (2 times per year)

Cutbacks (once a year)

nes

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. 55G

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 79-1357 U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

INTRODUCTION

Reports 55S and 55G comprise the first 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 Borllck on 301/921-2946*

Jeffrey Borllck, Administrator

NBS-TAFPI Collaborative Reference Program

Office of Testing Laboratory Evaluation Technology

January 10* 1979

TAPPI-NBS COLLABORATIVE REFERENCE PROGRAM

BACKGROUND AND PURPOSE

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

Paper Industry established a collaborative reference program to provide a participating

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

comparison with that of other laboratories.

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

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

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

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

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

HOW THE PROGRAM WORKS

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

may enter the program at any time.

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

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

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

values should be known to the operator.)

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

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

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

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

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

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

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

recognized reference laboratories in this and other countries.

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

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

these values for each test method.

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

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

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

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

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

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

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

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

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

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

ii
'

.

* *

• . -v .

. ,
TABLE OF CONTENTS

Analyses In This Report

PAGE

i ii

iv

15

8

11

13

14

19

21

22

23

24

25

30

31

33

36

38

40

43

48

50

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 KAN Ink Absorption

57-

1 pH, Cold Extraction

57-2 pH, Hot Extraction

60-1 Opacity, White (89%) Backing

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

60-3 Opacity, Paper Backing, Elrepho type

65-1 Blue Reflectance (Brightness), Directional

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

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

75-1 Specular Gloss, 75 degree

90-1 Thickness (Caliper)

95-1 Grammage (Basis Weight)

Summary

Analyses In The S Report

10-1

10-2

11-1

15-1

17-1

19-

1 20

-

1 20-2

25-

1

26-

1 28-1

29-

1

30-

1 30-2

35-

1

36-

1

49-

1

50-

1 91 -1 96-1

Bursting Strength - Dp to 45 psi

Bursting Strength - Up to 45 psi. Air Clamps

Bursting Strength - Up to 100 psi

Tearing Strength - Deep Cutout

Tearing Strength - No Cutout

Tensile Breaking Strength - Packaging Papers

Tensile Breaking Strength - Printing Papers,

Tensile Breaking Strength - Printing Papers,

Tensile Energy Absorption - Packaging Papers

Tensile Energy Absorption - Printing Papers

Elongation to Break - Packaging Papers

Elongation to Break - Printing Papers

Folding Endurance, MIT type

Folding Endurance, MIT type, log (base 10)

Stiffness, Gurley

Stiffness, Taber

Surface Pick Strength, IGT

Surface Pick Strength, Wax

Concora ( Flat Crush ) Ring Crush

CRB

Pendulum

ill
TABLE OF CONVERSION FACTORS TO METRIC (SI) UNITS

Physical

Quantity

To Convert

From To

Multiply

by

Bursting strength psi kPa 6.895

kg/ cm

2 kPa 98.07

bar kPa 100.00

Tearing strength g mN 9.807

Tensile strength lb/in. kN/m .1751

lb/ 0.5 in. kN/m .3502

lb/15 mm kN/m .2965

kg/15 mm kN/m .6538

kg/25 mm kN/m .3923

kg/mm kN/m 9.807

Tensile energy absorption ft-lb/ft 2 J/m2 14.59

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

kg-m/m

2 J/m2 9.807

Bending stiffness g. cm pN-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 pm 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
VAR -

F -

+ -

# -

M -

X -

* -

S -

0 -

COORDINATES -

No. of test

Determinations

Lower limit

for R. SDR

Upper limit

for R. SDR

3 0.09 2.58

5 0.27 2.06

8 0.40 1.77

10 0.46 1.67

15 0.56 1.53

20 0.61 1.45

25 0.65 1.39

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

Flag, with following meaning:

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

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

the laboratory. (See NOTES following Table 1

for each method)

Excluded because data for one sample are missing

Excluded because plotted point would fall outside of 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.

Distances along major and minor axes of error

ellipse. If special additive or concurrent

model of the measuring process applies to this

method, the distance along the minor axis

represents the random error within a laboratory

while that along the major axis also includes

a systematic laboratory component of error.

2
95% ELLIPSE - Lengths of the major and minor axes of the

ellipse and the angle that the major axis

makes with the horizontal axis.

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

an indication of the laboratory's precision

of repeated measurements.

Graph - For each laboratory the MEAN for the second

sample is plotted against the MEAN for the

first sample, with each point representing

a laboratory. The horizontal and vertical

lines are the GRAND MEANS. The dashed line

is drawn at 45°. The solid sloping line,

which may or may not lie close to the 45°

line, is along the major axis of the error ellipse. The ellipse is drawn so that, on

the average, it will include 95% of the points

representing the laboratories.

Plotted symbols are as explained above (under

F) , except that an 'S' is plotted as an 'O'.

A participant whose plotted point falls outside of the ellipse should carefully reexamine

the testing procedure he is following.

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 jthe 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.

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

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

for which sufficient information is available.

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

and past, with special attention to results

obtained by the National Bureau of Standards

and other recognized reference laboratories

in this and other countries. All participants

using equipment that is standard for the

analysis should be able to achieve results

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

are shown along with the best values.

4
REPORT NO# 550 TAPPI COLLAB0RATI VB RBFBRENCB PROGRAM SEPTEMBER 1978 ANALYSIS T40«= 1 TABLE 1 AIR RESISTANCE. GURLBY UNITS (SECONDS/lOO CC

)

TAPPI STANDARD T460 6S«=75, AIR RESISTANCE OF PAPER

SAMPLE HEAT SET OFFSET BOOK SAMPLE PRINTING TEST D. 10 LAB B73 76 GRAMS PER SQUARE METBR J46 86 GRAMS PER SQUARE MBTER CODE -MEAN DEV N. DBV SDK R. SDR MEAN DBV N.DBV SDR R. SDR VAR F LAB

LI 00 IS. 64 *>.51 = .49 1.35 .98 11.71 = .62 = .77 .68 .73 40D 0 LI 00

Li 07 15.70 *>.45 = .43 1.64 1.18 12.30 = .03 = .04 .95 1.02 40D a LI 07

LI 21 15.40 *•75 •=.72 3.26 2.35 11.80 = .53 = .66 2.19 2. 35 40D o LI 21

Li 22 15.75 = .40 = .38 1.14 . 82 11.94 = .39 = .49 .71 .77 40D 0 LI 22

Li 2 3 16.20 .05 .05 2.00 1.44 12.67 .34 .42 .82 . 88 4 OD 0 Ll 23

L124G 15.73 = .42 = .40 .93 .67 12.63 .30 .37 .68 .73 40D 0 Li 24G

LI 25 16.19 .04 .04 .58 .42 11.67 = .66 = .82 .73 .79 40 D a Ll 25

LI 28 16.20 .05 .05 1.48 1.06 12.30 = .03 = .04 1.16 1 .24 40D 0 LX 28

LI 4 1 15.98 *>.17 = .16 .83 . 59 12.79 . 46 . 56 .66 .71 40D a Ll 4 X LI 4 8 17.42 1.27 1.23 2.52 1.82 12.46 .13 .16 . 86 .93 40D 0 LX 4 8

LI 59 15.84 *>.31 = .30 1.39 1.00 11.57 = .76 = .94 1.14 1.23 40D 0 Ll 59

LI 63 17.18 1.03 1.00 1.90 1.37 13.31 .98 1.21 .83 .90 40D a Ll 63 U 66 17.40 1.25 1.21 1.19 . 86 13.62 1.29 1.59 .64 .69 4GD 0 Ll 66

LX 7 4 15.14 = 1.01 = .97 1 .40 1.01 11.76 = .57 = .71 .68 .73 40D a Ll 74

LX 76 13.29 = 2.86 = 2.76 1.74 1.25 10.02 = 2.31 = 2.86 .75 .81 40D «- Ll 76 L182G 16.28 .13 .13 .85 .61 12.16 = .17 = .21 1.05 1.13 40D 0 Ll 82G

LI 83 17.91 1.76 1.70 1.20 . 86 1 3.33 1.05 1.29 1.12 1.20 4 OD 0 Ll 83 U90C 15.91 = .24 = .23 1.39 ' 1.00 11 . 84 = .49 = .61 .85 .91 40D 0 Ll 90C

LI 90

R

15.19 = . 96 = .93 a.se 1.13 11.67 = .66 = .82 .86 .92 40D a Ll 90R

LEX 2 14.09 = 2.06 = 1 .99 1.14 . 82 10.74 = 1.59 = 1.97 .61 . 66 4CD 0 L212

L22 3 15.82 = .33 = .32 1.60 1.15 12.92 .59 .72 .81 .87 40D 0 L223

L22 4 14.72 = 1.43 = 1 . 38 2.30 1.65 11.38 = .95 = 1.18 1.71 1.83 4 OD e L224

L2 30G 16.60 .45 .44 1.58 1.14 12.80 .47 .58 .79 .85 4 OD 0 L230G

L2 32 14.26 = 1.89 = 1.82 1 .44 1.03 11.02 =1.31 = 1.62 1.42 1.52 40D a L2 32 L236 16.28 .13 .13 1 .00 .72 12.56 .23 .28 .91 .98 4 0 D a L2 36 L238A 15.98 = . 1 7 = .16 1.37 .98 12.91 .58 .71 1.10 1 .18 4 CD 0 L238A

L2 4 2 15.13 = 1.02 = .98 1.23 . 89 11.92 = .41 = .51 .74 .79 40D a L242

L243G 16.47 .32 .31 1.27 .92 12.02 = .31 = .39 .78 .83 40D a L243G

L254 16.38 .23 .22 1.52 1.09 12.43 .15 .18 .65 .70 4 OD 0 L254

L259 14.37 = 1.78 = 1.72 1.75 1. 26 10.85 = 1.48 = 1.83 .67 .72 40D a L259

L261 15.56 = .57 = .55 1.19 . 86 12.47 .14 .17 .78 . 84 4 OD 0 L261 L262G 15.69 = .46 = .44 .85 .61 12.46 .13 .16 1.12 1.20 40D o L262G

L265 15.37 = .78 *>• 7S .97 .70 12.46 .13 .16 .71 .76 40D 0 L265

L278 16.04 = .11 = .10 1.15 .83 12.34 .01 .01 .77 .83 40D a L278

L285 17.06 .91 . 88 1.38 .99 14.22 1.89 2.33 .81 . 87 4 OD * L285

L30

1

16.81 .66 .64 1.61 1.16 12.56 .23 .28 1.61 1.73 4 OD 0 L301 L308 15.83 = .32 = .31 1.74 1.26 13.17 .84 1.03 1 .76 1 .89 40D 0 L308

L320 16.10 = .05 = .05 1.45 1.04 11.20 = 1.13 = 1.40 .63 .68 40D e L320

L324 15.86 = .29 = .28 1.01 .73 12.31 = .02 = .03 .80 . 86 40D a L324

L326 16.77 .62 .60 1.01 .73 13.04 .71 .87 .72 .77 40D 0 L326

L328 16.83 = .32 = .31 .99 .72 12.79 .46 .56 1.21 1.30 4 OD 0 L328

L344 15.84 = .31 = .30 1.01 .73 12.02 = .31 = .39 1.07 1.15 40D a L3 44 L37 6 17.07 .92 .89 1.58 1.14 11 .97 = .36 = .45 1.01 1.09 AOD a L3 76 L37 8 16.77 .62 .60 1.79 1.29 12.55 .22 .27 .81 .87 40D 0 L378

L3 80 18.00 1.85 1.79 1.05 .76 12.40 .07 .06 .70 .75 4 OD * L380

L38 8 8.06 = 8. 09 = 7.81 .82 .59 6.32 =6.01 = 7.43 .36 .38 40D * L388

L396M 17.61 1.46 1.41 .76 .55 13.26 .93 1.14 1.11 1.19 40D o L396M

L576 17.48 1.33 1.29 1.75 1.26 14.29 1.96 2.42 .55 .59 40D 0 L576

L585 1 5.48 = .67 = .65 1.64 1.18 11.75 = .58 = .72 .81 .87 40D 0 L5 85 L604 17.39 1.24 1.20 1.19 . 85 12. 83 .50 .61 .70 .75 4 OD a L604

L61 6 18.50 2.35 2.27 1.98 1.43 12.49 .16 .19 .97 1 .04 4 OD * L616

L651 17.00 .85 .82 1.05 .76 13.00 .67 .82 1 .05 1.13 40D 0 L651

L676 17.20 1.05 1.02 1.08 .78 12.57 .24 .29 .70 .75 40D 0 L6 76

GR. MEAN • 16.15 GUBLBY UNITS GRAND MEAN • 12.33 GURLEY UNITS TBST DETERMINATIONS - 10

SD MEANS - 1.04 GOBLET UNITS SD 6F MEANS • .81 GURLBY UNITS 52 LABS IN GRAND MEANS

AVERAGE SDR - 1.39 GURLBY UNITS AVBRAGE SDR * .93 GURLEY UNITS

L291 17.00 . 85 .82 1.41 1.02 12.60 .27 .33 1.17 1 . 26 40U L291

L484 14.66 = 1.49 = 1.44 .99 .71 11.44 = .89 = 1.10 . 66 .71 40H L4 84 L564 3.87 =12.27 = 11.85 .29 .21 2.62 =9.71 =12.00 .15 .17 40K L564

TOTAL NUMBER OP LABORATORIES REPORTING • 56

Best values: E73 16.0 +1.9 Gurley units

J46 12.3 + 1.3 Gurley units

The following laboratories were omitted from the grand means because of extreme test results: 388 5
REP0RT N0. £50 TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T40=l TABLE 2 AIR RESISTANCE. GURLBY UNITS (SECONDS/lOO CC) TAPPI STANDARD T460 8S=75, AIR RESISTANCE OF PAPER

SEPTEMBER 1976

t LAB MEANS COORDINATES AVG

CODE F E73 J46 MAJOR MINOR R. SDR VAR PR0PBRTY°= = TEST INSTRUMENT«=«=°C0NDI TION S L564 3.67 2. 62 = 1S. 63 = .74 .19 40K AIR RESISTANCE, BBKK

L388 * 8.06 6.32 =10. C8 = .17 .49 40D AIR RESISTANCE, GORLEY DENS0METER = OIL FLOTATION

Li 7 6 * 13.29 10.02 = 3.67 = .21 1.03 40 D AIR RESISTANCE, GURLEY DENSO METER OIL FLOTATION

L2I2 0 14.09 10.74 = 2.60 = .10 .74 40D AIR RESISTANCE. GURLBY DEN SOME TER «= OIL FLOTATION

L2 32 0 14.26 11.02 =2.30 .03 1.28 40 D AIR RBSISTANCB, GURLBY DENSO MB TER OIL FLOTATION

L2 5 9 0 14.37 10. 85 = 2.31 = .17 .99 40D AIR RESISTANCE, GURLEY DENS0MBTER OIL FLOTATION

L4 84 14.66 11.44 =1. 73 .14 .71 40 H AIR RESISTANCE, REGMED«= TYPE GURLBY DEN SO M3 TER «=0IL FLOTATION

L224 0 14.72 11.38 = 1.72 .06 1.74 40D AIR RESISTANCE, GURLBY DENSO MBTER <= OIL FLOTATION

L242 0 15.13 11.92 =1.07 .26 .84 40D AIR RESISTAN CE, GURLEY DBNS0 METES <= OIL FLOTATION

Li 7 4 0 IS. 14 11.76 =1.15 .12 .87 40D AIR RESISTANCE, GURLEY DBNS0MBTER OIL FLOTATION

Li 90R 0 15.19 11.67 = 1.17 .02 1.03 40D AIR RESISTANCE. GURLEY DBNS0 MBTER c= OIL FLOTATION

L265 0 15.37 12.46 =. 56 .56 .73 40D AIR RBSISTANCB, GURLBY DENSO METER OIL FLOTATION

Li 21 0 15.40 11.80 = .92 .00 2.35 40D AIR RESISTANCE, GURLEY DENSO METER OIL FLOTATION

L585 0 15.48 11.75 =. 88 = .08 1.02 40D AIR RBSISTANCB, GURLEY DENSO METER «= OIL FLOTATION

L26i 0 15.58 12.47 =.38 .44 .85 40D AIR RESISTANCE, GURLBY DEN SOME TBR ° OIL FLOTATION

LI 00 0 15.64 11.71 = . 78 = .21 .85 40D AIR RESISTANCE, GURLEY DENSO MBTER o OIL FLOTATION

L2 62G 0 15.69 12.46 = .30 .37 .90 40 D AIR RBSISTANCB, GURLEY DBNS0 METER = OIL* FLOTATION

Li 0 7 0 15.70 12.30 = .38 . 23 1.10 40D AIR RESISTANCE, GURLBY DENSO MBTER «= OIL FLOTATION

LI 24G 0 15.73 12. 63 = .17 .48 .70 40D AIR RESISTANCE, GURLEY DENSO MBTER OIL FLOTATION

Li 22 0 15.75 11.94 = .55 = .09 . 79 40D AIR RESISTANCE, GURLEY DENSO MB TER ° OIL FLOTATION

L2 2 3 0 15.82 12.92 .07 . 67 1.01 40 D AIR RBSISTANCB, GURLEY DENSO METER e OIL FLOTATION

L308 0 15.83 13.17 .23 .87 1.57 40D AIR RESISTANCE. GURLBY DENSOMETER «= OIL FLOTATION

L328 0 15.83 12.79 .01 .56 1.01 40 D AIR RESISTANCE, GURLEY DENSOMBTER OIL FLOTATION

L34 4 0 15.84 12.02 =.43 = .07 .94 40 D AIR RESISTANCE, GURLBY DENS0METER «= OIL FLOTATION

Li 59 0 15.84 11.57 = .70 = .44 1.11 40 D AIR RESISTANCE, GURLBY DENSO METBR ° OIL FLOTATION

L324 0 15.86 12.31 = .25 .15 . 79 40D AIR RESISTANCE, GURLBY DENSO ME TBR «= OIL FLOTATION

LI 9 0C 0 15.91 11.84 = .48 = .26 .96 40D AIR RESISTANCE, GURLBY DBN SO MBTER OIL FLOTATION

Li 4 i 0 15.98 12.79 .13 .47 .65 40 D AIR RESISTANCE, GURLEY DENSO METBR «= OIL FLOTATION

L23 8A 0 15.98 12.91 .20 .57 1.08 40 D AIR RESISTANCE, GURLBY DBNSOMETBR OIL FLOTATION

L2 7 8 0 16.04 12.34 = .08 .07 .83 40 D AIR RESISTANCE, GURLEY DENSO ME TBR ° OIL FLOTATION

L32 0 0 16.10 11.20 = .70 = .89 .86 40 D AIR RESISTANCE, GURLBY DBNSOMETBR o OIL FLOTATION

Li 2 5 0 16.19 11.67 = .35 = .56 .60 40D AIR RESISTANCE, GURLBY DENSOME TER =» OIL FLOTATION

Li 23 0 16.20 12.67 .24 .24 1.16 40 D AIR RESISTANCE, GURLBY DENSO METER «= OIL FLOTATION

Li 2 8 0 16.20 12.30 .02 = . 06 1.15 40 D AIR RBSISTANCB. GURLEY DBNSOMETER OIL FLOTATION

Li 82G 0 16.28 12.16 .01 = .22 .87 40D AIR RESISTANCE, GURLBY DENSO METER C OIL FLOTATION

L2 36 0 16.28 12.56 .24 .11 .85 40D AIR RESISTANCE. GURLEY DENSOMETBR o OIL FLOTATION

L2 5 4 0 16.38 12.48 . 27 = .02 .89 40D AIR RESISTANCE. GURLBY DENSOMETER OIL FLOTATION

L243G 0 16.47 12.02 .08 = .44 .87 40D AIR RESISTANCE, GURLEY DENSO ME TER OIL FLOTATION

L23CG 0 16.60 12.80 .64 .12 .99 40D AIR RESISTANCE. GURLBY DENSOMETBR OIL FLOTATION

L3 7 8 0 16.77 12.55 . 63 = .19 1.08 40 D AIR RBSISTANCB. GURLBY DENSO MB TBR ° OIL FLOTATION

L32 6 6 16.77 13.04 . 92 .21 .75 40 D AIR RBSISTANCB. GURLEY DENSO MB TBR <3 OIL FLOTATION

L3C i 0 16.81 12. S6 .67 = .20 1.44 40 D Aik RESISTANCE, GURLEY DENSOMETER «=» OIL FLOTATION

L29I 17.00 12.60 .85 = .28 1.14 400 AIR RESISTANCE, SHEPFIBLD IN GURLBY UNITS

L651 0 17.00 13.00 1.08 .05 .94 40 D AIK RESISTANCE, GURLEY DENSOMETER «= OIL FLOTATION

L285 *• 17.06 14.22 1.84 1.00 .93 40 D AIR RESISTANCE, GURLEY DENSOMETER OIL FLOTATION

L37 6 0 17. C7 11.97 . 54 = .83 1.11 40 D Aik RESISTANCE, GURLEY DBNSOMETER e OIL FLOTATION

Li 63 0 17.18 13.31 1.41 . 19 1.13 40 D AIR RESISTANCE. GURLEY DENSO MBTER OIL FLOTATION

L676 0 17.20 12.57 . 99 = . 42 .77 40D AIR RBSISTANCB. GURLBY DBNSOMETER OIL FLOTATION

L604 0 17.39 12.83 1.30 = .32 .80 40 D AIR RESISTANCE. GURLEY DBNSOMETER OIL FLOTATION

Li 6 6 0 17.40 13.62 1.77 .32 .77 4 0 D AIR RESISTANCE. GURLBY DBNSOMETBR OIL FLOTATION

Li 4 8 0 17.42 12.46 1.11 = . 64 1.37 40D AIR RESISTANCE, GURLBY DBNSOMETBR OIL FLOTATION

L576 0 17.48 14.29 2. 22 .81 .93 40 D AI R RBSISTANCB, GURLEY DENSOMETBR o OIL FLOTATION

L396M a 17.61 13.26 1.73 = .10 .87 40 D AIR RBSISTANCB, GURLEY DENSOMETER OIL FLOTATION

Li 83 0 17.91 13.38 2. 04 = .18 1.03 40 D AIR RESISTANCE, GURLEY DBNSOMETER OIL FLOTATION

L3 80 * 18.00 12.40 1.54 = 1 . 03 .75 4 0 D AIR RBSISTANCB. GURLBY DENSO MBTER ° OIL FLOTATION

L61 6 1 8.50 12.49 2.00 = 1.24 1.23 40 D AIR RESISTANCE, GURLBY DBNSOMETER - OIL FLOTATION

GME ANS

16.15 12.33 1.00

95* ELLIPSE: 3.14 1.18 WITH GAMMA - 35 DEGREES

6
GURLEY

UNITS

10.5

11.5

12.5

13.5

14.5

15-

RIR RESISTANCE, GURLEY

SAMPLE E73 = 16.1 GURLEY UNITS SAMPLE J46 = 12-3 GURLEY UNITS

7
REPORT NO. eSG TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T40=2 TABLE 1 AIR RESISTANCE, SHEFFIELD UNITS (CC/MIN) FOR 0.442 SO. IN (3/4 IN. DIA) ORIFICE

SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

SEPTEMBER 1976

SAMPLE HEAT SET OFFSET BOOK SAMPLE PRINTING TEST I>•' 10 LAB E73 76 GRAMS PBR SQUARE METER J46 86 GRAMS PER SQUARE MBTBR

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

LI 1 4 1SI. 9. .87 10. . 83 240. 15. 1.29 9. .78 4 0 S 0 LI 14

LI 2 & 1 54. = 1 8. = 1.62 7. .56 211. = 15. = 1.29 12. 1.04 4 OS 0 LI 21 LX22S 181. 9. .84 19. 1. 52 229. 3. .30 10. .90 40 S 0 LI 22S

LX2 4S 167. = 5. = .46 11. . 86 222. = 4. = .31 1 5. 1.28 AOS 0 LI 24S

Li 32 169. = 3. = .23 12. .95 212. = 13. = 1.16 8. .69 403 0 LI 32

LI 4 8 176. 4. .39 15. 1. 25 224. = 2. = .14 10. .89 40S 0 LI 48

LI 50 178. 7. .60 15. 1.18 248. 22. 1.94 11. .95 AOS 0 LI 50 LI73B 184. 13. 1.17 20. 1.57 228. 2. .21 8. .68 4 OS 0 L173B

LI90C 184. 12. 1.12 20. 1.62 225. = 1 . = .C6 14. 1.17 40 S 0 L190C

L213 171. = 0. = .04 17. 1.34 214. = 11. = 1.00 8. .70 AOS 0 L213

L22 3 161 . = 10. = .96 10. .78 220. = 6. = .53 13. 1.11 40S 0 L223

L228 164. °8. = .70 7. .59 221. = 5. = .41 10. .84 40S 0 L2 28 L230S 164. “7. = .66 9. .72 214. = 12. = 1.02 12. 1.02 40S 0 L230S

L249 179. 7. .64 13. 1.03 220. = 6. = .53 11. .96 AOS 0 L249

L255 1 82. 11. .97 9. .72 237. 11. 1.00 7. .59 4 OS 0 L255

L25 7A 166. = 6. = .54 11. .91 228. 3. .23 16. 1.43 40S 0 L257A

L257B 1 68. = 3. = .31 12. .95 234. 9. .77 12. 1.01 AOS 0 L257B

L257C 167. °5. = .46 8. .62 228. 2. .21 14. 1.25 40S 0 L257C

L2 60 1 64. °8, = .74 6. .51 228. 2. .20 10. .87 AOS 0 L260

L26 2S 164. °8, = .71 9. .70 224. = 2. = .17 7. .61 40S 0 L262S

L2 88 198. 26. 2.40 19. 1.50 254. 28. 2.48 15. 1.32 AOS * Lc 68 L30 1 176. 4. .39 10. .78 226. = 0. = .00 12. 1.04 40S 0 L301 L305 163. = 9. = .78 8. .61 211. = 14. = 1.25 8. .72 40S 0 L305

L31 8 177. 5. .49 18. 1.45 21 8. = 8. = .71 18. 1.59 AOS 0 L318

L352 1 66. = 6. = .54 9. .69 213. = 13. = 1.13 13. 1.15 ACS 0 L352

L3 54 1 56. “1 5. = 1.41 13. 1.03 230. 5. .41 13. 1.11 AOS 0 L354

13 6 0 148. = 23. = 2.11 13. 1.02 216. = 9. = .83 10. .84 40S 0 L360

L366 1 67. °5. = .44 13. 1.04 203. = 23. = 1.99 14. 1.18 AOS 0 L366

L370 151. =20. = 1.87 7. .59 266. 40. 3.53 7. .62 AOS X L37C

L372 1 60. = 12. = 1.10 12. .93 232. 6. .57 11. .98 40S 0 L372

L390 1 85. 14. 1 .26 19. 1.54 247. 21. 1.88 9. .82 ACS 0 L390

L575 186. 15. 1.34 19. 1.50 231. 5. .48 14. 1.17 ACS 0 L575

L585 1 84. 13. 1.17 13. 1.07 232. 7. .60 17. 1.49 40S 0 L585

L597 173. 2. .16 14. 1.12 22S. = 1. = .06 13. 1.14 AOS 0 L597

L60 0 122. = 50. = 4. 54 13. 1.08 214. = 11 . = 1.01 14. 1.23 40S * L600

GF « MEAN - 172. SHEFF. UNITS GRAND MB AN • 226. SHEFF. UNITS TEST DETERMINATIONS - 10

SD MEANS - 11. SHEFF. UNITS SD 0F MEANS • 11 . SHEPF. UNITS 33 LABS IN GRAND MEANS AVERAGE SDR • 12. SHEFF « UNITS AVBRAOE SDR • 12. SHBPF. UNITS

LI 82

797. 626* 57.05 52. 4.19 950. 724. 63.81 87. 7.51 40B LI 62B L243B 862. 691. 62.97 55. 4.44 1044. 819. 72.14 45. 3.86 40 B L243B

L3i 2 1 54. °1 7. oj.57 7. . 53 196. = 30. = 2. 60 29. 2.48 40T L312

L4 84 720. 548. 49.98 54. 4.33 935. 709. 62.49 41 . 3.57 4CB L4 84 L58 7 165. *=6. -.57 9. • 70 222. = 4. = .32 12. 1.07 40T L587 TOTAL NUMBBR OF LABORATORIES REPORTING - Best values: E73 170 + 15 Sheffield units J46 225 + 21 Sheffield units

The following laboratories were omitted from the grand means because of extreme test results: 600

8

u
REPORT 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER & 978 ANALYSIS T40°2 TABLE 2 AIR RESISTANCE, SHEFFIELD UNITS (CC/MIN) FOR 0.442 SO. IN (3/4 IN. DIA) ORIFICE SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MBANS COORDINATES AVG

CODE F E73 J46 MAJOR MINOR R. SDR VAR PRGPE RTY===TEST I NSTRUMENT===•CONDITIONS

L6C0 * 122. 214. =43. 28. 1.16 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L360 & 148. 216. = 23. 10. .93 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTER ORIFICE

)

L370 X 151 . 266. 1 5. 42. .60 40 S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER ORIFICE

)

u 2 : 0 154. 211 . “23. 3. . 80 40 S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE)

131 2 154. 156. = 33. “8. 1.50 40T AIR RESISTANCE, SHEFFIELD (3 INCH DIAMBTER 6RIFICE)

L354 0 156. 230. = 7. 14. 1.07 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE ) 1.372 0 160. 2 32. = 4. 1 3. .96 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L22 3 0 161 . 220. = 12. 3. .95 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMBTER ORIFICE

)

L3C6 0 163. 211, = 16. “3. .67 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L2 6C 0 164. 228. = 4. 7. .69 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

1.2 62 S a 164. 224. = 7. 4. .66 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE

)

L2 3 8 0 164. 221 . “9. 2. .72 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L23CS 0 164. 214. “13. “3. .87 40 S AIR RESISTANC2, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

1.587 165. 222. “7. 2. .88 40T AIR RESISTANCE, SHEFFIELD (3 INCH DI AMBTER ORIFICE)

L352 0 166. 213. “13. = 5. .52 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE )

L25 7A o 166. 228. = 2. 6. 1.17 40 S AI R RESISTANCE, SHEFFIFLD ( 3/4 INCH DIAMETER ORIFICE

)

LS 2 AS 0 167. 232. “6. 1. 1.07 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTER ORIFICE

)

1.2 5 7C 0 167. 228. “2. 5. .93 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMSTBR ORIFICE

)

L36 6 0 1 67. 203. = 20. “12. 1.11 40 S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMBTER ORIFICE

)

L257B 0 168. 234. 4. 8. .98 40 S AIR RES ISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

LI 22 0 165. 212. = 1 1 . =7. .82 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L2i 3 6 171 . 214. = 9. “7. 1 . 02 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) L597 0 173. 225. 1 . = 2. 1.13 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) L301 a 176. 226. 3. “3. .91 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE ) LI 4 8 0 176. 224. 2. = 4. 1.07 40S AIR RESISTANCE, SHEFFIELD ( 3/4 I NCH DIAMBTER ORIFICE )

L31 6

%0 177. 218. “2. “9. 1.52 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) LI SC 0 178. 248. 21. 10. 1.07 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE ) 1249 0 175. 220. 0. “9. 1.00 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) LI 22S a 181 . 225. 9. “4. 1.21 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE ) LS 1 4 a 181 . 240. 17. 3. .81 AOS AI R RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETBP ORIFICE ) L255 a 182. 237. 16. 0. .65 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) LS 90C 0 184. 225. 8. “9. $ .40 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) LS 73B 0 1 84. 228. 11. = 6. 1.13 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) L585 0 184. £32. 14. c o» 1.28 40 S AIR RESISTANCE. SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) L3 9 0 0 185. 247. 25. s. 1.18 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETBR ORIFICE

)

L57S 0 186. 231. 14. “7. 1.34 40 S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE ) L288 • 158. 254. 39. 0. 1.41 4CS AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMBTER ORIFICE ) L4 84 720. 535. 892. 88. 3.95 40 B AI R RESISTANCE, BENDTSEN, WG 1 SO

LI 82

* 757. 550. 956. 42. S. 85 40 B AIR RESI STANCE, BENDTSEN, WG I 50 L243B 862. 1044. 1070. 60. 4.15 40 B AIR RESISTANCE, BENDTSEN, WG & 50

GMEANS ; 172. 226. 1.00

55 % :ELLIPSE: 37. 1 8. WITH GAMMA - 46 DEGREES

9
SHEFFUNITS

190

200

2

10

220

230

240

250

460

AIR RESISTANCE, SHEFFIELD

SAMPLE E73 = 172. SHEFF. UNITS SAMPLE J46 = 226. SHEFF. UNITS

130 140 150 160 170 180 190 200 210 220

SHEFF. UNITS

10
REPOST NO. 550 TAPPI COLLABORATI VB REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T41 = l TABLE 1 AIR RBSISTANCB, HIGH RANGB. GURLEY MBRCURY FLOTATION DIRECT READING, SEC/10 CC, MERCURY DENSITY

SAMPLE RELEASE BASE SAMPLE RBLBASB TEST D. • 10

LAB B73 226 GRAMS PER SQUARE METER B82 63 GRAMS PER SQUARE METBR

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

LI 22 1408. 55. .28 625. 1.03 2088. 453. 1.88 842, 1.35 4 1 G e LI 22

Li 28 1 1 98 • “155. “.78 260 • .43 1524. “111. = .46 495 • .79 4 1

e LI 28

LI 34 1258. “95. = .48 530. . 87 1710. 75. .31 673# 1.08 4 1 G e LI 34 U66M 1173. “180. = .90 559. .92 1968. 333. 1.38 759. 1.21 4 1 G 0 LI 66M

LI 95 1278. “75. “.37 723. 1.19 1781. 146. .61 488. .78 4 1

o LI 95

L22 4 1596. 243. 1 . 22 882. 1.45 1544. “91 . “.38 725. 1.16 4 1 G 0 L224

L2 30 1343. = 10. = .05 496 . . 82 1611. “24. “.10 580. .93 41 G 0 L230

L259 36465. 35112. 176.01 15916. 26.20 39551. 3791 6. 1 57.06 10707. 17.12 410 * L259

L31 2 1515. 162. .81 592. .97 1292. “343. “1.42 407. .65 41 G 0 L312

L358 1097. “256. = 1.28 680. 1.12 1613. = 22. “.09 576. .92 4 1

0 L358

LS57 1435. 82. .41 755. 1.24 1658. 23. .09 782. 1.25 4 1 G 0 L557

L558 1767. 414. 2.08 873. 1.44 1591. “44. “.18 631. 1.01 4 1

0 L558

LS76 1167. “186. “.93 326. .52 1240. =395. = 1.64 546. .87 4 1 G 0 L576

GR. MEAN • 1353. SBC/10 CC GRAND MEAN • 1635. SEC/10 CC TBST DETERMINATIONS - 10

SD MEANS • S 99. SBC/10 CC SD 6P MEANS • 241. SEC/10 CC 12 LABS IN GRAND MEANS

AVERAGE SDR - 608. SEC/SO CC AVBRAGB SDR • 625. SEC/10 CC TOTAL NUMBER OF LABORATORIES REPORTING - 13

Best values: B73 1300 + 300 seconds per 10 cc, The values reported here are the time in seconds

E82 1600 + 400 mercury density required for the displacement of 10 ml of air through

(direct reading) an area of 1-0 in2 of the specimen. The values are

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

The following laboratories were omitted from the grand means because of extreme test results: 259

REPORT NO. 550 TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T4l°l TABLE 2 AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION DIRECT READING, SEC/20 CC, MERCURY DENSITY

SEPTEMBER 2978

LAB CODB F MEANS

B73 E82 COORDINATESMAJOR MINOR AVG

R. SDR VAR PROPERTY03 «= TBST INSTRUMBNT«= OOC0NDITI0NS

L358 6 1097. 1613. “37. = 255. 1.02 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L57 6 0 1167. 1240. 342. “271 . .70 41 G AIR RESISTANCE, HIGH RANGB, GURLEY MERCURY FLOTATION

L166M 0 1173. 1 968. = 365. “99. 1.07 41 G AIR RESISTANCE, HIGH RANGB. GURLEY MERCURY FLOTATION

Li 2 8 0 1 198. 1 524. 72. “177. .6! 41 G AIR RESISTANCE. HIGH RANGB, GURLEY MERCURY FLOTATION

LI 34 0 1258. 1710. = 95. “75. .97 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

LI 95 0 1278. 1781 . = 159. “39. .99 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L230 0 1343. 1611. 21. “1 5. .87 41 G AIR RESISTANCE, HIGH RANGB, GURLEY MERCURY FLOTATION

LI 22 0 1408. 2068. =42 8. 157. 1.19 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION- LSS7 0 1435. 1 658. “3. 85. 1.25 41 G AIR RESISTANCE, HIGH RANGB, GURLBY MERCURY FLOTATION

L31 2 0 1515. 1292. 371 . 79. .81 41 G AIR RESISTANCE, HIGH RANGB, GURLEY MERCURY FLOTATION

L224 0 1596. 1544. 144. 215. 1.31 41 G AIR RBSISTANCB, HIGH RANGE, GURLEY MERCURY FLOTATION

L558 0 1767. 1591. 138. 393. 1.22 41 G AIR RESISTANCE, HIGH RANGE. GURLEY MERCURY FLOTATION

L259 * 36465. 39551. =28868. 42861

21.66 41 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

GMEANS

1353. 95*

1635. ELLIPSE: 732. 591. 1.00 WITH GAMMA —76 DEGREES

11
SEC/10

CC

800

1200

1600

2000

2400

AIR RESISTANCE , GURLEY HG FLOTATION

SAMPLE B73 = 1353. SEC/10 CC

I 1 I L SAMPLE E82 = 1635- SEC/10 CCj i i i ^ +,X.« NOT IN GRAND MEANS

OO

LU ANALYSIS T41-1

LlJ

I Q_

CL

CQ

O

O

O

O

O

o cj O

O

O

O

Q

SAMPLE B73

400 600 800 1000

SEC/10 CC

1400 1800

T 2200

12
REPORT NO. 5SC TAPPI COLLABORATI VE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T44=l TABLE 1 SMOOTHNESS, PARKER PRINTSURF

SAMPLE PAINTING SAMPLE PRINTING TEST D.-1 10 LAB JS2 149 GRAMS PER SQUARE METER J49 94 GRAMS; PER SQUARE MBTBR

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

LI 22 5.45 .48 1.45 .31 1.66 7*03 1.03 1.69 • 11 1.18 44P 0 LI 22

LI 82 5.13 .16 .49 .18 .97 5. 98 = .01 = .03 • 10 1.10 44P 6 LI 82

LI 8 3 4.42 = .55 1.67 .08 .43 5.28 = .72 = 1.32 .06 . 68 44P e LI 83

L22 3 4.98 .01 .03 .17 .92 5.85 = .15 = .28 • 11 1.15 44P 0 L223

L188 5.23 .26 .78 .19 1.06 6.13 .13 .24 • 08 . 88 44P e L2 88

1317 5.05 .08 .24 .19 1.03 6.38 .36 .70 • 12 1.32 44P 0 L317

L588 4.62 o.35 1.07 .15 . 80 5.45 = .55 = 1.01 .08 .91 44P * L588

L66 9 4.89 = .08 =.25 .21 1.13 5.89 = .11 = .20 .07 .79 44P 0 L669

GR, MEAN • 4.97 MICRONS GRAND MEAN • 6.00 MICRONS TEST DETERMINATIONS - 1 < SD MEANS • .33 MICRONS SD OF MEANS - .55 MICRONS 8 LABS IN GRAND MEANS

AVBRAGE SDR - .16 MICRONS AVBRAGB SDR - .09 MICRONS

TOTAL NUMBER OF LABORATORIES REPORTING * 8

Best values: J12 5.0 microns

J49 6.0 microns

REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T44=l TABLE 2 smoothness, Parker printsurf

LAB MEANS C00RD INATBS AVG

CODE F 11

J49 MAJOR MINOR R. SDR VAR PR0PSRTY== -TEST INSTRUMENT*= at=C0NDI TI0NS

LI 83 0 4.42 5.2 8 = . 90 .12 .55 44 P SM00 IHNBSS, PARKER PRINTSURF

L588 0 4.62 5.45 = .65 .03 . 85 44 P SM001HNESS, PARKER PRINTSURF

L66 9 0 4. 89 5. 89 = .14 . 02 .96 44 P SM0OTHNESS, PARKER PRINTSURF

L223 0 4,58 5. 85 •=.13 = .09 1.04 44 P SM00THNESS, PARKER PRINTSURF

L31 7 0 5,05 6. 38 .37 .12 1.17 44P SM00 IHNESS, PARKER PRINTSURF

LI 82 0 5.13 5.98 .07 = .15 1.04 44 P SM00THNFSS, PARKER PRINTSURF

L*88 0 5.23 6.13 .24 = .16 .97 44 P SM00THNESS. PARKER PRINTSURF

LI 22 0 5.45 7.03 1.13 .10 1 .42 44 P SM00THNESS, PARKER PRINTSURF

GMEANS

4.97 6.00 1.00

95* ELLIPSE: 2.17 .40 WITH GAMMA - 59 DEGRE ES

13
REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T45=2 TABLB 1 SMOOTHNESS, SHEFFIELD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

SAMPLE PRINTING SAMPLE PRINTING TEST D. •' 15 LAB J12 149 GRAMS PER SQUARE METER JA9 94 GRAMSt PER SQUARE METER

C0DS MEAN DBV N. DEV SDR R. SDR MEAN DEV N. DBV SDR R. SDR VAR F LAB

LI 00 152.3 10.5 1.58 11.0 1.03 287.2 13.7 1.09 5.0 .69 ft 5S 0 LI 00 L1C 7 168.3 26.5 3.98 14.1 1.33 29ft. ft 20.9 1.67 8.2 1.13 ft 5S X LI 07

LI 08 146.1 4.2 .63 9.3 .87 299.9 26. 3 2.11 5.1 .71 ft 5S G LI 08

LI 1 A 143.9 2.1 .31 1 0.7 1.00 273.1 = .4 = .03 6. 6 .91 ASS G LI 1ft Li 21 135.

= 6.4 = .97 1 5.1 1.42 260.3 = 13.2 = 1.06 7.4 1.02 ASS 0 LI 21

LI 22 137. 3 =4.6 = .69 16.3 1.53 276.2 2.7 .21 7.5 1.04 ft 5S 0 LI 22

LI 2 3 1 36.5 = 5.4 = .81 12.4 1.16 251.0 = 22. 5 = 1.80 11.5 1 .59 ft 5S 0 LI 2

Li 2ft 139.6 = 2.2 = .34 11.8 1.11 266.8 = 6.7 = .54 6. 8 .94 ASS 0 LI 2ft LI 2 5 137.7 = 4.2 = .63 9.4 .89 265.7 = 7.9 = .63 11.2 1 . 54 ft 5S 0 LI 25

Li 26 141.8 = . 0 = .0I 10.0 .94 28A.0 10.5 .84 8.0 1.11 45S 0 LI 26

LI 28 144.6 2.8 .41 11.1 1.05 27ft.

.8 . 06 7.3 1.00 A5S Gr LI 26

Li 2 2 146.8 5.0 .74 8.1 .76 282.7 9.1 .73 6.2 .86 ft 5S 0 LI 32

Li 3ft 134.7 =7.2 = 1.08 6.7 .63 280.7 7.1 .57 8.8 1.22 ASS 0 LI 3ft LI 39S 156.1 14.2 2.14 15.1 1 .42 285.7 12.1 .97 4. 6 .63 ASS 0 LI 39S

Li ft 8 152.3 10.4 1.57 11.4 1.07 280.9 7.3 .59 6.9 .95 ASS 0 LI ft Q

Li 50 147.1 5. 3 .79 17.7 1.67 289.0 15.5 1.24 S. 8 . 80 A5S O LI 50

Li 52 148.6 6.8 1.01 4. 7 . 44 250.8 = 22.7 = 1.82 5.1 .70 ft 5S * LI 52

Li 59 147.5 5.7 . 85 11.8 1.11 277. ft 3.9 .31 3. 6 .50 ASS 0 LI 59

Li 62 142.0 .2 .02 10.7 1.00 280.7 7.2 .57 1 0.7 1.48 A5S 0 LI 62

LI 6 6 136.9 = 5.0 = .75 9.0 . 85 262.3 = 11.2 = .90 7.1 .98 ft 5S 0 LI 66

LI 67 148.7 6.8 1.02 9.9 .93 265.0 = 8.5 = .68 4.2 . 58 ASS 0 LI 67

LI 7 3B 138.7 = 3.2 = .48 1 2.2 1.14 261.7 =11.9 = .95 1C.1 1.39 ASS 0 L173B

Li 7 6S 13 8.9 =2.9 = .44 11.8 1.11 29ft.21.4 1.71 3. 8 .53 ASS 0 L176S

Li 83 S 14 5.5 3.7 .55 12.5 1.18 282.2 8.7 .69 6.5 .90 ASS 0 LI 83

L190C 145.3 3.5 .52 12.6 1.18 265.3 = 8.2 = .66 5.2 .71 ft 5S 0 L190C

LI 90R 133.7 = 8.2 = 1.23 11.2 1.05 257.6 = 15.9 = 1 .28 2.4 .32 A5S 0 LI 90R

LI 9 5 136.8 =5.0 = .76 11.4 1.07 258.7 =14. 8 = 1.19 6.9 .95 ASS 0 LI 95 L203 135.7 = 6.2 = .93 13.5 1.27 266.0 = 7.5 = .60 9.3 1.28 ASS 0 L203

L206 140.3 = 1.5 = .23 7.8 .73 271.6 = 1.9 = .16 5.2 .71 ASS 0 L206

L21 1 144.7 2.8 .42 12.2 1.15 272.3 = 1.2 = .10 10.2 1.40 ft 5S 0 L211

L2i 3 127.6 = 14.2 = 2.14 10.1 .95 250.7 = 22.9 = 1.83 4.6 .64 A5S 0 L213

L223 140.0 = 1.8 = .28 8. 8 . 83 256.5 = 17. 1 = 1.37 7.8 1.08 ASS 0 L223

L22 A 148.3 6.4 .96 1 0.9 1.02 289. 7 16.1 1.29 6.4 . 88 ASS 0 L2 2ft L22 6B 13 6.1 = 5.7 = .86 1 0.5 .98 268.7 = 4.9 = .39 6.7 .92 ASS 0 L226B

L228 139.1 = 2.7 = .41 5.7 . 54 281 .0 7.5 .60 6.0 .83 A5S 0 L228

L230S 144.7 2.9 .43 15.7 1.48 282.3 8. 8 .70 7.5 1.03 ASS 0 L230S

L232S 164.3 £2.5 3.38 17.2 1.62 339.3 65. 8 5.27 3.2 .44 ASS » L232S

L237 141.3 = .5 = .08 9.2 . 86 273.3 = .2 = .02 5.6 .77 ft 5S 0 L2 37

L2 A9 138.9 = 2.9 = .44 1 0.4 .98 288.0 14.5 1.16 9.4 1.29 ft 5S 0 L2A9

L25A 147.6 5. 8 . 86 11.1 1.04 270.8 = 2.7 = .22 11.9 1.64 ASS 0 L2 5ft L255 145.5 3.6 .54 5.9 .55 27-*.

4.1 .33 5. 1 .70 ft 5S 0 L255

L257A 138.3 = 3.6 = .54 8.7 . 82 267.6 = 5. 9 = .48 10.2 1.40 ASS 0 L257A

L2 5 7B 151.1 9.3 1.39 12.2 1.15 260.3 = 13.3 = 1.06 13.5 1 .85 ft 5S 0 L257B

L2 57C 150.7 8. 8 1.32 9.7 .91 273.2 = .3 = .03 10.2 1.40 ft 5S 0 L257C

L2 59 158.7 16.9 2.54 23.6 2.22 286.3 14.8 1.18 8.2 1.12 ASS • L259

L260 145.3 3.4 .51 7.8 .73 258.5 = 15.1 = 1.21 3. 4 .47 ASS 0 L260

L26

143.3 1.5 .22 17.3 1.63 281.9 8.4 .67 9.3 1.28 ASS 0 L261

L262 140.9 = .9 = . 14 9.1 . 86 274.3 .8 .06 9.0 1.24 ft 5S 0 L262

L275 144.6 2.8 .41 1 0.3 .97 2 82.7 9.1 .73 7.0 .97 ft 5S 0 L275

L278 155.7 13.8 2.08 7.5 .71 289.9 16.3 1 .31 9.1 1.26 ASS 0 L2 78

L201 146.7 4.9 .73 10.9 1.02 272. ft = 1 . 1 = .09 4.4 .61 ft 5S 0 L281

L2 85 134.1 =7. 8 = 1.17 9.3 . 87 261 .0 = 12.5 = 1.00 8.3 1.15 ft ss 0 L285

L288 139.9 = 2.0 = .30 1 0.9 1.02 275.6 2.1 .16 10.8 1.49 ft 5S 0 L2 88 L291 S 145.9 4.0 .60 9.3 . 88 292.3 18.7 1.50 5.0 .68 A5S 0 L291S

L30

142.1 .3 .04 5.3 .50 250.9 = 22.7 = 1.82 6.0 .82 A5S 0 L301

L3 05 141.1 = .8 = .12 5.4 .51 272.0 = 1.5 = .12 9.0 1.23 ASS 0 L305

L3C8 140.9 = .9 = .14 6.1 .57 272.0 = .7 = .06 6.2 .86 ft 5S 0 L308

L312 138.7 = 3.2 = .48 9.9 .93 2 84.0 10.5 .84 4. 3 .59 ft 5S 0 L312

L3i 7 134.7 = 7.1 = 1. 07 8.9 . 84 281 .3 7.8 .62 7.4 1.02 ft 5S 0 L31 7 L31 8 136.5 =5.3 = .80 1 0.4 . 98 281.3 7.8 .62 7.3 1.01 ASS 0 L318

L323 137.0 = 4. 8 = .73 1 2.9 1.22 275.0 1.5 .12 7. 8 1.07 ft 5S 0 L323

L326 140.5 = 1 .3 = .20 9.1 . 86 307.5 34.0 2.72 4. 8 .67 ft 5S • L326

L32 8 14 2.8 1.0 .14 12.8 1.20 219.3 = 54. 3 = 4.34 5.3 .73 ASS 0 L328

L3ft 9 132. 8 = 9.0 = 1.36 9.0 . 85 260.9 = 4.7 = .37 7.5 1.03 A5S G Left 9 L35 2 144.5 2.7 .40 11.2 1.05 279.0 5. 5 .44 13.0 1.79 ft 5S 0 L352 14
REPORT NO. 550 TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 8578 ANALYSIS T45=l TABLE 1 SMOOTHNESS. SHBFPIBLD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB SAMPLE

J12 PRINTING

149 GRAMS PER SQUARE METER

SAMPLE

J49 PRINTING94 GRAMS PER SQUARE MBTBR TBST D. - 15 CODB MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DBV SDR R. SDR VAR F LAB

L360 134.9 = 7.0 = 1 • C5 7.1 .67 272.2 = 1.3 = .11 6. 1 .84 45S e L360

1366 146.1 4.3 .64 11.1 1.05 259.3 = 14.2 = 1.14 6. 8 .93 45S 0 L366

L370 142.6 .8 .11 8.2 .77 280.0 6.5 .52 6.5 .90 45S 0 L370

L37P 138.7 = 3.2 = .48 8.9 .84 285.3 11.8 .94 7.7 1 .07 ASS 0 L372

L376 151.1 9.2 1.38 12.4 1.17 268.4 = 5.1 = .41 10.3 1.42 45S 0 L376

1378 137.3 = 4.5 = .68 1 0.3 .97 261.3 = 12.3 = .98 9.6 1.33 45S 0 L378

L380 135.5 =6.4 = .96 S.6 .81 265.3 = 8.2 = .66 5.5 .76 45S 0 L3 80 L382 142.5 .6 .09 14.0 1. 32 275.6 2.1 .16 5.4 .74 45S 0 L382 L350 139.3 = 2.5 = .38 14.4 1.35 275.3 1.8 .14 6.4 .88 45S 0 L39C L396M 127.2 = 14.6 = 2.20 9.9 .93 262.7 = 1 0. 8 = .87 6.4 .89 45S 0 L396M

L554 134.7 = 7.1 = 1.07 11.4 1.08 255.7 = 17.8 = 1.43 1 0.9 1.50 45S 0 L554

L57S 160.5 18.7 2.81 17.4 1.64 298.4 24.9 1 .99 5.5 .76 45S » L575

L585 127.0 = 14.8 = 2.23 7.0 .66 269.7 = 3.9 = .31 6.7 .92 45S 0 L58S

L587 146. 0 4.2 .62 8.5 .80 264.7 = 8.9 = .71 4.0 .55 45S 0 L587

L597 1 35.5 = 6.3 = .95 18.7 1.76 280.1 6. 6 .53 5.8 .79 45S 0 L597

L600 110.3 = 31.5 = 4.73 12.3 1.16 284.5 11.0 .88 8.4 1.16 45S X L600

L648 143.4 1.6 .23 1 3.7 1.29 280.1 6.5 .52 6. 8 .94 45S 0 L648

L65i 135.5 = 6.3 = .95 5.4 .51 241.5 = 32.1 = 2.57 2.9 .40 45S » L651

L6 70 141.0 = .8 = .13 10.3 .97 274.7 1.1 .09 5.8 .80 45S 0 L670

CR, MEAN • 141.8 SHBFF. UNITS GRAND MEAN - 273. 5 SHBFF. 1UNITS T3ST DETERMINATIONS 15 MD MEANS • 6.7 SHEFF. UNITS AVERAGE SDR

SD GF MEANS • - 10.6 SHBFF . UNITS

12.5 SHEFF. UNITS AVERAGE SDR - 7.3

80 LABS IN GRAND

SHBPF. UNITS MEANS

LI 74 237.7 95.9 14.40 7.0 . 66 319.7 46.2 3.70 5.1 .70 45R . LI 74 TOTAL NUMBER OF LABORATORIES REPORTING * 85

Best values: J12 140 + 12 Sheffield units J49 270 + 19 Sheffield units

The following laboratories were omitted from the grand means because of extreme test results: 232S,

328

15
REPORT N6 # 55

TAPP I COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T45«=i TABLE 2 SMO0THNBSS, SHEFFIELD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MEANS COSED

CODE F J1 2 J49 MAJOR

L60 0 X 11C.

284.5 2. 1 L585 o 127.0 269. 7 -7.7

L396M 0 127.2 262.7 =14.4

L2i 3 0 127.6 250.7 -25.9

L349 0 132.8 269.9 -6.9

La 90

0 133.7 257.6 = 17.6

L2 85 0 134.1 261.

= 14.2

La 34 0 134.7 280.7 4.9

L554 0 134.7 255. 7 = 19.1

L32 7 0 134.7 28 i . 3 5.6

L360 0 134.9 272.2 -3.2

LI 23 0 135.4 260. 3 = 14.5

L380 6 135.5 265.3 = 9.6

L651 * 135.5 241.5 = 32.6

L597 0 135.5 28C • a 4.6

L20 3 0 135.7 266.0 = 8.9 L226B 0 136.1 268.7 -6.2

La 23 0 136.5 25a .0 -23.2

L31 8 0 136. 5 281 .3 6.1

LX 95 O 136.8 258.7 = 15.6

LI 66 0 136. 9 262.3 = 12.1

L3 2 3 0 137.0 275.0 . 1 LX 22 0 137. 3 276.2 1.3

L37 8 0 137. 3 261 • 3 = 13.0

Li 2 5 0 I 37.7 26 5. 7 -8.7

L2S7A 0 138. 3 267.6 = 6.7

L372 O 138.7 285.3 10.5

Li 730 138. 7 261 .7 -12.3

L3 i 2 0 138.7 284.0 9.2

LI 7 6S 0 138. 9 294.9 19.8

L249 0 138.5 288.0 13.1

L2 c 8 0 139.1 281.0 6.5

L39 0 0 139. 3 275. 3 1.0

Li 2 4 0 139.6 266.8 = 7.1

L2 8 8 0 139.9 275. 6 1.4

L22 3 0 140.0 256. 5 = 16.9

L2 0 6 0 140.3 271.6 -2.3

L326 *• 140.5 307.5 32.4

L30 8 0 140.9 272. 8 = 1.0

L262 O 140.9 £74.3 . 5 L670 0 141.0 274. 7 .9

L30 5 0 141.1 272. 0 = 1.7

L2 37 0 141.3 273.

-.3

LI 2 6 0 141.8 284.0 10.1

LI 62 0 142.0 280.

6. 9

L30 2 0 142.1 250.9 = 21 .

L382 0 142.5 275.6 2. 1 L370 0 142. 6 2 80.0 6.

L32 8 * 142. 8 219.3 -52.0

L2 63 0 143.3 281.

8.5

L64 8 0 143. 4 280.1 6.7

li a 4 0 143.9 273.1 .2 L352 0 144.5 279.0 6.0

L2 2 8 0 144.6 274.3 1.5

L275 0 144. 6 282.7 9.5

L2X 1 0 144.7 272.3 -.4

L230S 0 144. 7 282.3 9.2 L260 0 145. 3 258.5 -13.6

Li 90C 0 145. 3 265.3 = 7.0

L2 5 5 0 145.5 277.7 4.9

L4 83S 0 1 45. 5 2 62.2 9.3

L29I S 0 145. 9 292.3 19.1

L58 7 0 146. 0 264. 7 -7.4

LX 0 8 0 146.1 299.9 26.5

L366 0 146.1 259.3 = 12.5

AVG MINOR R. SDR VAR PR0PERTY<=

33. 3 1.16 45S SMOOTHNESS,

13.3 .79 ASS SMOOTHNESS,

11.2 .91 45S SMOOTHNESS,

7.6 .79 45S SMO0THNBSS, 7.5 .94 45 S SMOOTHNESS,

3.6 .69 45 S SMOOTHNESS,

4.1 1.01 45 S SMOOTHNESS,

8.8 .92 45S SMOOTHNESS,

2.1 1.29 45S SMOOTHNESS,

8.9 .93 45S SMOOTHNESS,

6.4 .76 45 S SMOOTHNESS,

2.7 1.22 ASS SMOOTHNESS,

3.9 .79 45S SMOOTHNESS,

= 2.5 .45 A5S SMOOTHNESS,

7. 8 1.27 45S SMOOTHNESS,

3.9 1.27 45S SMOOTHNESS,

4.2 .95 45 S SMOOTHNESS,

-.9 1.38 45S SMOOTHNESS,

7.2 .99 45S SMOOTHNESS,

.9 1.01 45S SMOOTHNESS,

1.8 .91 45S SMOOTHNESS,

5. 1 1.14 45S SMOOTHNBSS,

5.1 1.28 45S SMOOTHNESS,

1.0 1.15 45S SMOOTHNESS,

1.9 1 .21 45S SMOOTHNBSS,

1.8 1.11 45 S SMOOTHNESS,

6.2 .95 45S SMOOTHNESS,

-.1 1.27 45S SMOOTHNESS,

5.9 .76 45S SMOOTHNESS,

8. 6 .82 45S SMOOTHNESS,

6.7 1.13 45 S SMOOTHNBSS.

4. 6 .68 45 S SMOOTHNESS,

2.9 1.12 45 S SMOOTHNESS,

.3 1.02 45 S SMOOTHNBSS,

2. 5 1.25 45S SMOOTHNESS,

= 2.8 .95 45 S SMOOTHNESS,

.9 .72 45S SMOOTHNESS, 10.4 .76 45S SMOOTHNESS,

.7 .71 45S SMOOTHNESS,

1.1 1.05 45S SMOOTHNBSS,

1.1 .89 45 S SMOOTHNBSS,

.3 .87 45S SMOOTHNBSS,

.4 .81 45S SMOOTHNESS, 2.9 1.02 45S SMOOTHNESS,

1.8 1.24 45S SMOOTHNESS, -6.4 .66 45S SMOOTHNESS, -.0 1 .03 45 S SMOOTHNESS,

1 .0 . 63 45 S SMOOTHNBSS,

= 15.5 .97 45 S SMOOTHNESS,

.8 1.45 45 S SMOOTHNESS,

.3 1.12 45S SMOOTHNESS,

-2.1 .96 45 S SMOOTHNESS,

-1.1 1.42 45 S SMOOTHNESS,

= 2. 4 1.03 45S SMOOTHNESS, -.2 .97 45S SMOOTHNESS,

= 3.0 1.28 45 S SMOOTHNESS,

-.4 1.26 45S SMOOTHNESS,

= 7.4 .60 45S SMOOTHNBSS,

= 5.6 .95 45S SMOOTHNESS,

= 2. 4 .63 45 S SMOOTHNBSS,

= 1.2 1 • C 4 45 S SMOOTHNESS,

1.2 .78 45S SMOOTHNESS, -6.4 .67 45S SMOOTHNBSS,

3.0 .79 45 S SMOOTHNBSS, -8.0 .99 45 S SMOOTHNBSS,

® TEST I NSTRUMENT^4=0 CONDITION S SHEFFIELD

SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD SHEFFIELD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHBFFIBLD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD SHBFFIBLD

SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD

SHBFPIELD

SHEFFIELD

SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHEFFIELD

SHBFFIBLD

SHBFFIBLD

SHEFFIELD

SHEFFIELD

SHEFFIELD SHEFFIELD

SHEFFIELD

SHBFFIBLD

SHBFFIBLD SHEFFIELD

SHEFFIELD

SHBFFIBLD

SHBFPIELD

SHBFFIBLD SHEFFIELD SHEFFIELD

SBBFFI ELD SHEFFIELD

SHBFFIBLD

SHBFFI ELD SHBFFIBLD

16
REPORT N6. 550 TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T45=l TABLE 2 SMOOTHNESS, SHEFFIELD UNITS SHBFFIBLD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVO

CODS F J12 J49 MAJOR MINOR R. SDR VAR PRO PE RTY= =1 «= TEST INSTRUMENT^o^COHDITIGHS

LZ 81 0 1 A6. 7 272.4 .2 = 5.0 .82 A5S SMOOTHNESS. SHEFFIELD

LI 32 0 146. 8 282.7 10.1 = 2.3 .81 45S SMOOTHNESS, SHEFFIELD

LI 50 0 147.1 289.0 16.3 = .9 1.24 45S SMOOTHNESS, SHEFFIELD

LS 5 9 0 147.5 277.4 5.2 •=4.4 .80 45S SMOOTHNESS, SHEFFIELD

L254 0 147. 6 270.8 =1.1 <6.3 1.34 45S SMOOTHNESS, SHEFFIELD

L2E A a 148.3 2 89.7 17.3 = 1.9 .95 45 S SMOOTHNESS, SHEFFIELD U52 « 148.6 250.8 =20.1 = 12.6 .57 45S SMOOTHNESS, SHEFFIELD

LI 67 0 148.7 265.0 =6.4 = 8.9 .76 45S SMOOTHNESS, SHEFFIELD

L257C a 150.7 273.2 2.0 = 8.6 1.16 45S SMOOTHNESS, SHEFFIELD

L376 a 151.1 268.4 “2.5 = 10.3 1.29 45S SMOOTHNESS, SHEFFIELD

L157B 0 151.1 260.3 = 10.3 = 12.5 1.50 45S SMOOTHNESS, SBBFFI ELD

LI 68 0 152.3 280.9 9.9 = 8.1 1.01 45 S SMOOTHNESS, SHEFFIELD U 00 0 152.3 287.2 16.0 = 6.4 .86 45S SMOOTHNBSS, SHEFFIELD

L2 78 0 155.7 289.9 19.4 = 8.9 .98 45S SMOOTHNESS, SHEFFIELD

LI 396 0 156. 1 285.7 15.5 = 10.4 1.03 45 S SMOOTHNESS, SHEFFIELD

L2 59 • 158.7 288.3 18.8 = 12.3 1.67 45S SMOOTHNESS, SHEFFIELD

LS76 • 160.5 £98.4 29.0 = 11.3 1.20 45S SMOOTHNESS, SHEFFIELD

L2 33S 0 164. 3 339.3 69.4 = 4.0 1.03 45S SMOOTHNESS, SHEFFIELD

LI C7 X 168. 3 294.4 27.2 = 19.9 1.23 45S SMOOTHNESS, SHEFFIELD

LI 76 « 237.7 319.7 70.3 = 79.9 .68 45R SMOOTHNESS, SHEFFIELD, N0N« STANDARD INSTRUMENT

CMFANM: 141.8 273. 5 1.00

95% ELLIPSE: 32.3 14.8 WITH GAMMA - 74 DEGREFS

17
SHEFF.

UNITS

230

240

250

260

270

280

290

300

SMOOTHNESS, SHEFFIELD

SAMPLE J 1 2 r 142. SHEFF. UNITS SAMPLE J49 = 274. SHEFF. UNITS

lfl
RBPBRT N«,. esc TAPPI C0LLAB6RATI VB REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T45=2 TABLE 1 SMOOTHNESS , BEKK SECONDS

TAPPI SUGGESTED METHOD T479 SU=71 . SMOOTHNESS OF PAPER < BERK METHOD)

LAB SAMPLEJ12 149 GRAMS PRINTING

PER SQUARE MBTER

SAMPLB

J 49 94 GRAMS PRINTINGPER SQUARE MBTER TEST D. 15

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

LI 3 98 32.93 2.72 1.16 2.69 .79 10,33 .45 .55 .49 .BS 45K 0 LI 39B

LI 62 29.60 = .61 = .26 2.47 . 68 5.46 =4.43 = 5.40 .18 .32 45K ft LI 62 U 76 26.13 = 4.08 = 1.73 3.87 1.06 8.47 =1.42 = 1.73 .36 .62 45K 0 LI 76

LS 82 K 28. C9 = 2.12 = .90 2.81 .77 9.24 = .64 = .78 .36 .66 45K 0 LI 82

L190C 34.60 4. 39 1.86 3.44 .95 11.23 1.34 1.64 .67 1.17 45K 0 LI 90C

L212 28.00 = 2,21 = .94 4.17 1.15 9.35 = .54 = .65 .50 . 38 45K o L212 L230B 31.40 1.19 .51 3.92 1.08 9.73 = .15 = .18 .59 1.04 45K 0 L220B

L232B 30.09 = .12 = .05 3.03 1.05 9.40 = .48 = .59 .83 1.45 45K 0 L2 32B L243K 29.80 =.41 = .17 4.51 1.24 10.65 .77 .94 .65 1.14 45K 0 L243K

L291 K 30.03 = .16 = .07 3.33 .91 9.41 = .47 = .57 .34 1.47 45K 0 L291K

LS64 31 .27 1.06 .45 3.96 1.09 10.83 .95 1.16 .52 .92 45K 0 L564

L581 29.93 = .28 = .12 3.28 .90 10.07 .18 .22 • 46 .80 45K 6 L581

CR. MEAN • 30.21 BEKK SECONDS GRAND MEAN - 9.88 BEKK SECONDS TBST DETERMINATIONS - 15

SD MEANS - 2.36 BERK SECONDS

AVERAGE SDR

SD OF MBANS -

• 3.64 BEKK SECONDS

.82 BEKK SECONDS

AVERAGE SDR .57

11 LABS IN GRAND

BEKK SECONDS MEANS

L2S1 28.67 «=1 .54 n •

01 2*35 .65 10.13 .25 .31 .45 .78 45L . L2S1 TOTAL NUMBER OF LABORATORIES REPORTING * S3

Best values: J12 30 Bekk seconds

J49 10 Bekk seconds

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

REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T45=2 TABLE 2 SMOOTHNESS , BEKK SECONDS

TAPPI SUGGESTED METHOD T479 SU=7S , SMOOTHNESS OF PAPER (BEKK METHOD)

LAB MEANS COORDINATES AVG

CODE F J12 J49 MAJOR MINOR R. SDR VAR PROPERTY® 3 *= TEST I NSTRUMENT=°= CONDITIONS

LI 7 6 0 26.13 8.47 =4.32 = .19 .84 45 K SMOOTHNESS, BEKK

L21 2 0 2S.00 9.35 = 2.27 .12 1.01 45 K SMOOTHNESS, BEKK L182K 0 28.09 9.24 =2.21 = .01 .72 45K SMOOTHNESS, BEKK

L251 28.67 10.13 = 1.41 .68 .71 45L SMOOTHNESS, BEKK, 20 C, 65% RH

LI 62 a 29.60 5.46 = 1.85 = 4.07 .50 45 K SMOOTHNESS, BEKK L243K 3 29.80 10. 65 = .17 . 86 1.19 45K SMOOTHNESS, BEKK

L561 0 29.93 10.07 = .21 .25 .85 45K SMOOTHNESS, BEKK L291K 0 30.05 9.41 = .28 = .41 1.19 45 K SMOOTHNESS, BEKK

L23 2 B 0 30.09 9.40 = .25 = .43 1.25 45K SMO0TENBSS, BEKK

L564 0 31 .27 10.83 1.29 .61 1.00 45 K SMOOTHNESS, BEKK L230B 0 31.40 9.73 1.10 = .48 S.Ofc 45 K SMOOTHNESS, BEKK

LI 3 9 B 0 32.93 10.33 2.74 = .35 .82 45 K SMOOTHNESS, BEKK L190C 0 34.60 11.23 4.59 . 03 1.06 45K SMOOTHNESS, BEKK

GMEANS

30.21 9.88 1 .00 95* ELLIPSE: 7.56 1.35 WITH GAMMA • a 6 DEGREES

19
BEKK

SECONDS

SMOOTHNESS, BEKK

SAMPLE J 1 2 = 30.2 BEKK SECONDS SAMPLE J49 9.9 BEKK SECONDS

i i 1

CO

CO

CM

O

05 +.X.« NOT IN GRANO MEANS

ANALYSIS T45-2

LU

CL

CO

O

o

©

©

~©~

ooco-

'3

- -

CM -

<§> c ©

SAMPLE J 12

20 22 24 26 28 30 32

BEKK SECONDS

34 36 38 40

20
REPORT NO. 550 TAPP1 COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1976 ANALYSIS T47=l TABLE 1 SMOOTHNESS, BBNDTSEN

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 2 0 LAB J12 149 GRAMS PER SQUARE METER J49 94 GRAMS PER SQUARE METER

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

LI 00 1 59. = 14. = 1.47 14. . 77 535, 53. 1.43 70. 1.94 47B e LI 00

LI 76 S 80. 7. .81 19. 1.04 474. = 8. = .23 16. .46 47B © LI 76 L182B 182. 9. 1.00 25. 1.37 481. = 2. = .05 17. .48 47B 0 LI 82

L236 166. = 7. = • 71 27. 1.44 507. 25. .68 65. 1.80 47B e L2 36

L2 42 168. = 5. = .53 21. 1.2 3 452. = 31 . = .84 32. .90 47B 0 L242

L243B 1 85. 12. 1.31 21. 1.16 526. 43. 1.17 29. .80 47B a L243B

L2 44 1 56. = 17. = 1.83 16. .84 490. 7 . .20 11 . .31 47B * L244

L333 166. = 7. = .75 13. .72 440. = 43. = 1.16 46. 1.29 47B 0 L333

L484 176. 3. .34 7. .36 446. = 37. = 1.00 22. .33 47B 0 L4 84

G5. MEAN - 173. ML/MI

GRAND MEAN - 483. ML/MIN TEST DETERMINATIONS - 10 SD MEANS - 9. ML/MIN SD OF MEANS - 37. ML/MIN 8 LABS IN GRAND MEANS

AVERAGE SDR - 19. ML/MIN AVERAGE SDR * 36. ML/MIN

TOTAL NUMBER OF LABORATORIES REPORTING • 9

Best values: J12 170 milliliter per minute

J49 490 milliliter per minute

The following laboratories were omitted from the grand means because of extreme test results: 244

REPORT NO. S5G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T47=l TABLE 2 SMOOTHNESS, BENDTSEN

LAB MEANS COORDINATES AVG CODE F J2 2 J49 MAJOR MINOR R. SDR VAR PROPERTY03 -TEST INSTRUMENT- ——CONDITION S L244 * 156. 490. °9, = 17. .58 47 B SMOOTHNESS, BBNDTSEN, WG 150

Li 00 0 159. 535. °53. = 13. 1.36 47 B SM00THNBSS, BENDTSEN. WG 150

L333 0 166. 440. 43. = 7. 1 .00 47 B SM00THNBSS, BBNDTSEN, WG 2 50 L236 0 266. 507. °25. = 6. 1.62 47B SMOOTHNESS, BENDTSEN. WG 150

L242 0 168. 452. 31. = 5. 1.01 47 B SMOOT HNBSS, BENDTSEN, WG 150 L484 0 176. 446. 37. 3. . 35 47 B SMOOTHNESS, BENDTSEN, WG 1 50 U 76 0 18C. 474. 9. 7. .75 47 B SMOOTHNESS, BENDTSEN, WG 1 50 L182B 0 182. 481. 2. 9. . 92 47 B SMOOTHNESS. BENDTSEN, WG 150 L243B 0 1 85. 526. = 43. 13. .98 47 B SMOOTHNESS, BENDTSEN, WG 150

GMEANS

2 73. 483. 1.00

95* ELLIPSE: 127. 32. WITH GAMMA — 89 DEGREES

21
REPORT NO. £5G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T56=

TABLE 1 KAN INK ABSORPTION

SAMPLE OFFSET PRINTING SAMPLE PRINTING TEST D 4 LAB E 50 96 GRAMS PBR SQUARB METER H59 106 GRAMS PER SQUARE METER

CODE MBAN DEV N. DEV SDR R. SDR MEAN DBV N. DEV SDP R. SDR VAR F LAB

LI 2 6 68.8 =4.5 = .88 . S .78 59.8 = 3.7 = .72 • 1 . 22 56K 0 LI 26

LI 4 9 57.2 = 6.1 = 1.18 .5 • 78 57.7 = 5. 8 = 1.12 .5 1.17 56K 0 LI 49

LI 82 63. 8 .5 .09 .3 • 41 63.2 = .4 = .07 .3 .74 56K 0 LI 82

L21 3 70.6 7.3 1.40 1.1 1.72 71 o 0 7.4 1.43 . 4 . 83 56 K 0 L213

L292 66.6 3.2 .62 .6 .98 67.4 3.9 . 74 • 5 1.18 56K 0 L291

L33 3 58.8 = 4.6 = ,89 .5 • 84 58.3 = 5. 3 = 1 . 02 • 8 1.92 56K 0 L333

L339 25.6 = 37.8 = 7.27 .5 • 75 24.4 = 39. 2 = 7.55 .2 . 58 56K tf L339

LS64 67.7 4.4 . 84 1.0 1 • 49 67.5 3.9 .76 .4 .95 56K 0 L564

L6X 6 66.0 2.6 .SC 1.4 2.22 53.5 = 10 . 1 = 1.94 2.6 6.17 56K tf L616

GR. MEAN 63.4 K A N UNITS GRAND MEAN 63. 6 KAN UNITS TEST DETERMINATIONrs SD MEANS » 5.2 K A N UNITS SD OF MEANS • 5.2 KAN UNITS 7 LABS IN GRAND MEANS AVERAGE SDR - .6 K A N UNITS AVERAGE SDR • .4 KAN UNITS

L643 29.2 = 34.1 = 6.58 .5 .78 29.2 = 34. 3 = 6.61 .5 1.17 560 L643

L65

32.2 = 31.1 = 6.00 .3 .52 32.3 «31.3 = 6.03 .4 .93 560 L651 TOTAI ’IUMBER OF LABORATORIES REPORTING - 11 Best values: E50 64 K & N units

E59 64 K & N units

The following laboratories were omitted from the grand means because of extreme test results: 339, 616

REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1976 ANALYSIS T56=l TABLB 2 KAN INK ABSORPTION

LAB MEANS COORDINATES

CODE F E50 H59 MAJOR MINOR

L339 ft 25.6 24.4 = £4.4 = 1.0 L643 29.2 29. 2 =48. 4 = .l L65 a 32.2 32.3 °44. 1 = .l

LI 49 0 57.2 57.7 = 8.5 .2 L333 0 58.8 58.3 =7. 0 = .5

LI 2 6 0 58.8 59. 8 = 5.9 .6

LI 82 0 63. 8 63. 2 • 1 = .6

L61 6 ft 66.0 53.5 = 5.3 = 9.0

L291 0 66.6 67.4 5. 0 . 4 L564 0 67.7 67.5 5.9 = .3

L21 3 0 70.6 71.0 10.4 . 1 GMEANS

63. 4 63.6

95 % :ELLIPSE: 27.3 1.7

AVG

R. SDR VAR PROPBRTY== c TEST INSTRUMENT‘S

. 66 56 K INK ABSORPTION, KAN INK TEST

.97 560 INK ABSORPTION

OWN METHOD

.72 560 INK ABSORPTI ON: OWN METHOD

.97 56 K INK ABSORPTION, KAN INK TEST 1.38 56 K INK ABSORPTION, KAN INK TEST

.50 56 K INK ABSORPTION, KAN INK TEST

• 57 56K INK ABSORPTION, KAN INK TEST 4.19 56K INK ABSORPTION, KAN INK TEST

1.08 56 K INK ABSORPTION, KAN INK TEST

1.22 56 K INK ABSORPTI ON, KAN INK TEST

1.27 56 K INK ABSORPTION, KAN INK TEST 1.00 WITH GAMMA - 44 DBGREES

CONDITIONS

22
REPORT NO. 550 TAPPI COLLAB0RATI VB REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T57*=l TABLE 1 0 YDROGEN ION CONCENTRATION <PH), COLD

TAPPI STANDARD T509 0S=77 SAMPLE PRINTING SAMPLE PRINTING TEST D. - 5 LAB JI4 89 GRAMS PBR SQUARE METER J1 8 93 GRAMS PER SQUARE METBR

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

LI 74C 7.60 .65 1.31 .00 • 00 4.90 .20 .63 .00 .00 57F 0 LI 7AC

LI 82C 7.26 .31 .63 .05 • 63 4. 89 .19 .60 .05 1.63 57D 0 LI 82C

L25S C 6.57 = .38 = .76 .07 • 67 4. 83 .13 • 42 .03 .82 57P 0 L251C

L3c 8 7.18 .23 .46 .08 1.04 6.98 2.28 7.19 .08 2.55 57M * L328

L356 6.70 = .24 = .49 .09 1.14 4.64 = .07 -.21 .03 .77 57V 0 L356

L442 7.26 .31 • 62 .20 2.47 4.09 o.62 1.94 .04 1.10 570 o L442 L464A 6.30 = .65 1.30 .07 .89 4. 86 .16 .50 .05 1.67 57Y © L4 84A

GR. MEAN - 6.95 PH UNITS GRAND MEAN - 4.70 PH UNITS TEST DETERMINATIONS “ 5

SD MEANS • .50 PH UNITS SD OF MEANS - .32 PH UNITS 6 LABS IN GRAND MEANS

AVERAGE SDR - .08 PH UNITS AVERAGE SDR • .03 PH UNITS

TOTAL NUMBER OF LABORATORIES REPORTING - 7

Best values: J14 7.0 pH units

J18 4.7 pH units

The following laboratories were omitted from the grand means because of extreme test results: 323

REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T57«= 1 TABLE 2 HYDROGEN ION CONCENTRATION (PH). COLD

TAPPI STANDARD T509 0S*=77 LAB MEANS COORDINATES AVO

CODE F JS 4 J1 8 MAJOR MINOR R. SDR VAR PR0PERTY== = TEST INSTRUVfENT===CeNDITIONS

L484A 0 6.30 4.86 = .67 • 04 1.28 57Y PH. COLD. BECKMAN MODEL H2 L251C 0 6.S7 4.83 = .40 • 06 .85 57 P PE , COLD, RADIOMETER TYPE PH M64 L35o 0 6.70 4.64 =.23 °.ll .96 57 V PH, COLD, BECKMAN BXPANDOMATIC

L32 8 n 7.18 6.98 = .18 CV) • ro 03 S.80 57 M PH, COLD, BECKMAN ZEROMATIC

L442 0 7.26 4.09 .42 = . 55 1.79 570 PH, COLD, ORION DIGITAL IONALYZBR

L182C 0 7.26 4.89 .27 .24 1.13 57D PH, COLD. RADIOMETER TYPE PH M 28

L8 74C o 7.60 4.90 .61 .31 .00 57 F PH, COLD, FISHER ACCUMET MODEL 220 GMEAKS

6.95 4.70 1.00 95* :ELLIPSE: ro •

**> o 1.29 WITH GAMMA —SO DEGREES

23
REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTBMBER 1976 ANALYSIS T57=2 TABLE 1 HYDROGEN ION CONCENTRATION (PH), HOT

TAPPI STANDARD T435 0S= 77 SAMPLE PRINTING SAMPLE PRINTING TEST D. - 5 LAB JS 4 89 GRAMS PER SQUARE METER J1 8 93 GRAMS PER SQUARE METER

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

LI 2 8 7.990 .253 .73 .022 .20 4.400 = .113 = .79 .000 .00 57L 0 LI 28

LI 62 7.654 = .083 = .24 .137 1.24 4.630 .117 . 81 • 021 .64 57C e LI 62

Li 74

8. 080 .343 .99 . 045 .40 4.700 .187 1.30 • 000 . 00 57G 0 LI 74H

LI 82 H 7. 760 .023 .07 .114 1.03 4.376 = .137 = .95 • 056 1 .68 57E 0 LI 82H L484B 7.200 = .53 7 1.55 .235 2. 12 4. 460 = .053 = .37 . 089 2.68 57Z 0 L484B

GR. MEAN 7.737 PH UNITS GRAND MEAN - 4.513 PH UNITS TEST DETERMINATIONS - 5 SD MEANS * . 345 PH UNITS SD 6F MEANS - .144 PH UNITS 5 LABS IN GRAND MEANS AVERAGE SDR - .110 PH UNITS AVBRAGE SDR - .033 PH UNITS TOTAL NUMBER OF LABORATORIES REPORTING

Best values: J14 7.7 pH units

J18 4.4 pH units

REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T57<= 2 TABLE 2 HYDROGEN ION CONCENTRATION (PH), HOT

. TAPPI STANDARD T435 0S=77

SEPTEMBER 1976

LAB CODE F MEANS

J14 J18

C00RDI NATES

MAJOR MINOR AVGR. SDR VAR PR0PERTY==-TBST INSTRUMENT=== CONDI TI0NS

L<*84B 0 7.200 4.460 = .539 .015 2.40 57Z PH, HOT, BECKMAN MODBL H2

LI 62 0 7.654 4. 630 = .067 • 126 • 94 57 C PH, HOT, CORNING MODBL 12 RESEARCH MBTFR

LI 82 H 6 7.760 4.376 .006 = .139 1.36 57E PH, HOT, RAD I0MBTER TYPE PH M 28

LI 2 8 0 7.990 4.400 .237 = .144 .10 57 L PH, HOT, L*N

LI 74H 0 8.080 4.700 .364 • 142 • 20 57G PH, HOT, FISHER ACCUMBT MODBL 220 GMEANS : 7.737

95%

4. 513 ELLIPSE

1.756 .698

1.00 WITH GAMMA - 7 DEGREES

24
REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T60= 1 TABLE J OPACITY (89* REFLECTANCE HACKING) IN PBRCENT

TAPPI STANDARD T425 6S=75, OPACITY OF PAPER (15 DEG./DI FFUSE , ILLUMINANT A) = B4L TYPE

LAB SAMPLE

J 57 PRINTING94 GRAMS PER SQUARE METER

SAMPLE

K23 PRINTING103 GRAMS PER SQUARE METER

1 EST D. '- 10 CODE ME/ N DEV N. DEV SDR R. SDR MBAN DEV N. DEV SDR R. SDR VAR F LAB

LI 05 93 • 58 .87 1.82 .39 1.14 96.10 .66 1.97 .31 1.07 60H 0 Li 05

LX 0 8 92.66 =.05 = .11 .43 1.24 95. 3X = .13 = .37 .22 . 78 60B 0 LI 08

LS 2i 93.10 .39 .81 .23 .67 95.78 .34 1.02 .34 1.18 60 B 0 LX 21 U 22 92.70 = .01 = .C3 .32 .93 95.64 .20 .60 .24 . 83 60D 0 LX 22

LI 2 3 92.48 -.23 = .49 .46 1.33 95.17 = .27 = .79 .22 .78 60 W 0 LX 23

LI 2 4 91.81 = .90 = 1.89 .37 1.07 94. 83 = .61 = 1.80 .46 1.62 60B 0 Li 24

LI 2 5 92.54 -.17 = .36 .26 .76 95.27 = .17 = .49 .32 1.14 60H 0 LX 25

LI 31 92.20 = .51 = 1.07 .42 1.22 95. 00 = .44 = 1.29 .00 . 00 6 OR 0 LI 31 LI 32 92. 46 = .25 = .53 .31 .90 95.38 = .06 = .17 .26 .92 60B 0 LI 32

LI 34 93. 4C .69 1.44 .70 2.02 95.80 .36 1.08 .42 1.48 60R 0 LI 34

LI 3 9 92.75 .04 .08 .31 .89 95.21 = .23 = .67 .36 1.28 60B 0 LX 39

LI 4 0H 92.27 = .44 = .93 .48 1.40 94.99 = .45 = 1.32 .19 .67 60H 0 LX 48H

LI 50 93.00 .29 .60 .47 1.36 95.45 .01 .04 .44 1.54 60B 0 LX 50

LI 52 93.25 .54 1.13 .25 .72 95.67 .23 . 69 .16 . 57 60 B 0 LI 52

LI 58 93.10 .39 .81 .33 .94 95.77 .33 . 99 .18 .64 6CD 0 LX 58

LI 59 92.85 .14 .29 .28 . 80 95.66 .22 . 66 .16 . 55 60R 0 LX 59

LX 62 93.11 .40 .83 .41 1.20 95.54 .10 .31 .27 .95 60 W 0 LI 62

Li 6 6 9! .46 = 1.25 = 2.63 .31 .89 94. 64 = .80 = 2.36 .39 1.38 60B « LX 66

LX 7392.56 = .13 = .28 .65 1.67 95.69 .25 .75 .31 1.09 60 B 0 LI 73A

LX 90C 92.60 = .11 = .24 .28 . 81 95.20 = .16 = .46 .34 1.19 60 B 0 LX 90C

LI 90 R 92.74 .03 .06 .31 .91 95.60 .16 .46 .21 .74 6 0 B 0 LX 90R

L2X OB 92.75 .04 .08 .41 1.18 95.47 .03 .10 .19 .66 60B 0 L2X0B

L2X OD 92.97 .26 .54 .21 .59 95.50 .06 .19 .27 .95 60D 0 L210D

L2XXS 92.39 = .32 = .68 .26 . 75 95.26 = .18 = .52 .13 .47 60R 0 L211 S L2? 3 93.65 .94 1.96 .61 1.76 96.03 . 5S 1.76 .33 1.16 60 B 0 L213

L223B 93.01 .30 .62 .28 . 80 95.69 .25 .75 .16 .56 60B 0 L223B

L22 5 92.99 .28 .58 .42 1.21 95.67 .23 . 69 .29 1.03 6CB 0 L225

L22 6B 92.47 = .24 = . 51 .39 1.12 95.24 = .20 = .58 .39 1 . 36 60B 0 L226B

L22 8 92.70 = .0t = .03 .21 .61 95.75 .31 .93 .22 .76 6CH 0 L228

L230 93.00 .29 .60 .25 .73 95. 55 .11 .34 .16 .56 60 B 0 L230

L236B 90.96 = 1.75 = 3.67 . 87 2. 50 94.47 = .97 = 2.86 .62 2.19 60 B * L2 36B

L2 3 8A 91.86 = .85 = 1 .79 .20 . 57 94.07 = . 57 = 1.68 .17 .60 60R 0 L238A

L24 3 92.61 = .10 = .22 .44 1.23 95.50 .06 .19 .26 .92 60B 0 L243

L25 5 92.71 = .00 = .01 .26 .76 95.63 .19 . 57 .29 1 .03 60B 0 L255

L259 93.08 .37 .77 .27 .78 95.25 = .19 = .55 .45 1.56 60 B 0 L259

L26X 93.18 .47 .98 .28 . 82 95.97 .53 1.58 .09 .33 60 B 0 L261 L262 94.39 1.68 3.51 .19 .54 96.72 1.28 3.80 .19 .66 60 R X L262

L275 92.32 = .39 = .82 .19 .56 95.34 = .10 = .29 .20 .69 60 R 0 L275

L2 7 8 93.12 .41 .85 .24 .69 95. 91 .47 1.40 .46 1.61 60B 0 L278

L28X 92. 9C .19 .39 .32 . 93 95.63 .19 .57 .36 1.26 60D 0 L28X L285B c 2 .21 = . SO = 1 .05 .40 1.16 95.29 = .15 = .43 .26 .91 6CB 0 L285B

L285R 92.19 = .52 ' ..10 . 38 1.11 95.19 = .25 = .73 .34 1 . 20 60R 0 L285R

L288 91 .7c --.95 = 2 .CO .33 . 95 94.76 = .68 = 2.00 .39 1.37 60D 0 L288

L3 0

92.15 .56 = 1.18 .23 . 66 94.91 = •53 = 1.56 .23 .82 60B 0 L301 L305 92.62 = .09 = .19 .23 .65 95.49 .05 .16 .20 .69 6CR 0 L305

L30 8 93.39 .68 1.42 .39 1.12 95.57 .13 .40 .39 1.38 6 CH 0 L308

L3i 5 92.95 .24 .50 .41 1.17 95. 44 .00 .01 .28 .98 60D 0 L315

L3X 7 "92 • 73 .02 .04 .71 2. 05 95. X6 = .28 = . 82 .51 1.79 60B 0 L3X7

L31 8 93.25 .54 1.13 .42 1.23 95.35 = .09 = .26 .47 1.67 6CB * L3X 8 L32 3 93.47 .76 1 .59 .31 . 88 95. 80 .36 1.08 .24 . 86 60 W 0 L323

L326 93.45 .74 1 .54 .33 . 96 96.19 .75 2.23 .40 1.42 60B 0 L326

L32 6 92.00 = .71 = 1.49 .00 . 00 94.90 = .54 = 1.59 .74 2.59 60B 0 L328

L33 9 92.30 = .41 = .87 .48 1 . 40 95.50 .06 .19 .53 1.85 60 B 0 L3 39 L34 9 92.80 .09 .18 .37 1.06 95.45 .01 .04 .21 .73 60D 0 L349

L352 92.32 = .39 = .82 .28 . 80 95.11 = . 33 = .97 .20 .71 60 R 0 L352

L354 92.20 = .51 = 1 .07 .42 1.22 95. 00 = .44 = 1.29 .00 . 00 60 B 0 L354

L3 7 8 93.66 .95 1.98 .37 1.08 95.86 .43 1.26 .20 .69 60D 0 L378

L390 93.08 .27 .77 .27 . 78 95.67 .23 .69 .33 1.17 60B 0 L390

L52 3 92.46 = .25 = .53 .16 . 46 95.43 = .C1 = .02 .22 .76 60 R 0 L5 23

L54 3 92.26 = .45 = .95 .23 . 67 95.15 = .29 = .85 .25 . 88 60 D 6 L543

L57 3 92.69 = .02 = .C5 .39 1.13 95.62 .18 ,54 .25 . 87 60H 0 L573

L581 93.11 .40 .83 .36 1.04 95.38 = .06 = .17 .18 .64 60B 0 L581

L587 92. 84 .13 .27 .22 . 64 95.67 .23 . 69 .14 . 50 6 0 B 0 L587

L592 92.16 = . 55 = 1.16 .31 . 89 94. 84 = .60 = 1.77 .27 . 94 6GW 0 L592

L594 92.33 = .38 = .80 .47 1.35 95.17 = .27 = .79 .37 1 .28 60D 0 L594 25
REPORT NO. 5SG TAPPI C6LLAB0RATI VB REPBRBNCE PROGRAM SEPTEMBER 1978 ANALYSIS T60=l TABLE 1 OPACITY (89% REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T4E5 0S=75, OPACITY OF PAPER <SS DBG. /DIFFUSE, ILLUMINANT A) = BAL TYPE

SAMPLE PRINTING

LAB J 57 94 GRAMS PBR SQUARE METER

CODE MEAN DEV N. DEV SDR R. SDR

L597 92,50 *=•21 = .45 .53 1 • 55

L599 93. 10 .39 .81 .46 1,33 L673R 92.73 .02 .04 .20 . 58

GR. MEAN - 92 .71 PERCENT GRAND MEAN

SD MEANS - .48 PBRCENT SD OF MBANS AVERAGB SDR • .35 PERCENT

LS 00 92.70 = .01 = .03 .20 . 58

L22 4 92.33 = •38 = .80 . 43 1,25

L2 32 92. 30 = .41 = .87 .54 1.55

L249 92.67 = .04 = .09 .34 • 99

L2 5 6 9* .85 = . 86 = 1 .81 .47 1,35 L260 92.65 = .06 = .13 .24 .70

L3i 2 91 • 80 = .91 = 1 .91 .42 1.22

L3 % 4 93.32 .61 1.27 • S3 1 . 53 L38 0 92.00 = .71 = 1.49 .00 .00 L396 93, 6C .69 1.86 .46 1.33

L564 91 .35 = 1.36 = 2.86 .41 1.19 TOTAL NUMBER OF LABORATORIES REPORTING - 79

Best values: J57 92.7 + 0.8 percent

K23 95.4 + 0.6 percent

The following laboratories were omitted from the grand means because of extreme test results: 236B

SAMPLE K23 103 GRAMS PRINTING

i PER SQUARE METER TEST D. - 10 MEAN DEV N. DEV SDR R. SDR VAR F LAB

95.56 .12 .35 .53 1.85 60B S L597

95.65 .21 .63 .47 1.67 60B 6 L599

95.66 .22 . 66 • 25 .89 60 B 0 L673R

95.44

.34 PERCENT

PERCENT AVERAGB SDR •

• 28

TEST DETERMINATIONS - 10 66 LABS IN GRAND MBANS

PERCBNT

95.62 .18 .54 • 18 .64 60E LI 00 95.21 = .23 = .67 .53 1.87 60P L224

95.10 = .34 = 1.00 • 21 . 74 60P L2 32 95.47 .03 .10 • 08 .29 60P L249

95.06 = .38 = 1.12 .23 . 80 60N L256

96.00 .56 1.67 .00 . 00 60P L260

95.00 = .44 = 1.29 • 00 .00 6CP L312

95.71 .27 .81 .25 . 86 60T L314

95.00 = .44 = 1.29 .00 • oc 60P L380

96.05 .61 1.82 • 86 3.04 60X L396

94.45 = .99 = 2.92 .44 1.54 60P L5 64

26
KEP0RT NO* 5 5G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T60=l TABLE 2 OPACITY <89* REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 69=75, OPACITY OF PAPER (15 DEG. /DIFFUSE * ILLUMINANT A) = B4L TYPE

LAB CODS F MEANS

J57 K23 COORDINATES

MAJOR MINOR AVG

fi. SDR VAR P3aPERTY*== = TEST INSTRUMENT^ <==CONDI TION S

L23 6B * 90.96 94.47 •=1.99 .17 2.35 60 B 6PACITY ( WHI TE BACKING ), BAUSCH LOMB

L56A 91 .35 94.45 = 1.68 = .06 1.36 60 P ePACITY ( WHITE BACKING ), PHOT0V0LT

Li 66 * 91 .46 94.64 = 1.48 .03 1.13 60B OPACITY ( WHITE BACKING )

,

BAUSCH LOMB

L2 6 8 0 91 .76 94.76 = 1.17 = .03 1.16 60D OPACITY ( WHITE BACKING ) , D I ANO/BNL

L3S 2 91 .80 95.00 = 1.00 . 1 4 .61 60 P OPACITY ( WHITE BACKING ), PHOTOVOLT

LI 2 4 o 91 .81 94.83 = 1.09 = .00 1.35 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L256 91 .35 95.06 = .93 .17 1.07 60 N OPACITY ( WHI TE BACKING ), HUNTER

Lc3 8A a 91 .86 94. 87 = 1.02 .00 .58 60R OPACITY ( WHITE BACKING), THWING~ ALBERT ( FORMBRLY SRL ) L380 92.00 95.00 = .84 .03 . 00 60 P OPACITY ( WHI TE BACKING ), PHOTOVOLT

L32 8 a 92. UO 94.90 = .89 = . 05 1.30 60 B OPACITY ( WHITE BACKING), BAUSCH LOMB

L30

a 92.15 94.91 =.76 = .12 .74 60B OPACITY ( WHI TE BACKING ), BAUSCH LOMB

L592 a 92.16 94.84 = .79 = .19 .91 60 W OPACITY C WHITE BACKING ), HUYGEN, DIGITAL

L285R a 92.19 95. i 9 = .57 .09 1.16 60R OPACITY ( WHITE BACKING), THWING«= ALBB RT ( FORMERLY SRL ) 13 54 a 92.20 95.00 = .67 = .08 .61 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

LI 31 a 92.20 95.00 = .67 = .08 .61 60 R OPACITY ( WHITE BACKING ), THW I NG<= ALBERT ( FORMBRLY SRL) L2S5B a 92.21 95.29 = .50 .16 1.04 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L543 a 92.26 95.1 5 = . 54 .01 .78 60D OPACITY ( WHITE BACKING ), DIANO/BNL

LI 4 8H a 92.27 94.99 = . 62 = .13 1.03 60H OPACITY ( WHITE BACKING ), HUYGEN

Lc 32 92.30 95.1 0 = .53 = .05 1.15 60 P OPACITY ( WHITE BACKING ), PHOTOVOLT

L339 a 92.30 95.50 = . 31 .28 1.62 60 B OPACITY ( WHI TE BACKING ), BA.USCH LOMB

L3 5£ a 92.32 95.11 = .51 = .05 .76 60R OPACITY ( WHITE BACKING ), THWING^ ALBERT ( FORMERLY SRL ) L2?5 a 92.32 95.34 = .38 .14 .62 60 R OPACITY ( WHITE BACKING), THW I NG= ALBERT (FORMBRLY SRL ) L224 92.23 95.21 = .44 .02 1.56 60 P OPACITY ( WHITE BACKING ), PHOTOVOLT

L594 a 92.23 95. 17 = .47 = .01 1 .32 60D OPACITY ( WHI TE BACKING ), DIANO/BNL

L21 1 S a 92.39 95.26 = .37 .03 .61 60 R OPACITY ( WHI TE BACKING ), THWING^ ALBERT ( FORMERLY SRL )

LI I 2 a 92.46 95.38 = .24 .09 .91 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L523 a 92.46 95.43 = .21 .14 .61 60 R OPACITY ( WHI TE BACKING ), THWING<= ALBERT (FORMERLY SRL ) L226B a 92.47 95.24 = . 31 = . C3 1.24 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

Li 23 a 92.48 95.17 = .34 = .09 1.06 60 W OPACITY ( WHITE BACKING ). HUYGEN, DIGITAL

L597 s 92.50 95.56 = .ll .22 1 . 70 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

Li 2 5 a 92.54 95.27 = .24 n o a .95 60 H OPACITY ( WHITE BACKING ), HUYGEN

Li 73A a 92.58 95.69 .03 .28 1.48 60B OPACITY ( WHI TE BACKING ), BAUSCH LOMB

Li 90C a 92.60 95.28 = .18 = .07 1.00 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L2 4 3 a 92.61 95.50 °.C5 .11 1.10 60B OPACITY ( WHITE BACK INC ), BAUSCH LOMB

L3G 5 a 92.62 95.49 = .05 .10 .67 60 R OPACITY ( WHITE BACKING ), THWING~ ALBERT ( FORMERLY SRL ) L260 92.65 96.00 .26 .50 .35 60 P OPACITY ( WHITE BACKING ), PHOTOVOLT

Li C8 a 92.66 95.31 = .11 = .08 1.01 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L24 9 92.67 95.47 = . C 2 .05 .64 60 P OPACITY ( WHITE BACKING ), PHOTOVOLT

L573 a 92.69 95.62 .08 .17 1.00 60H OPACITY ( WHITE BACKING ), HUYGEN

L2 2 8 a 92.70 95.75 .16 .27 .69 60H OPACITY ( WHI TE BACKING ), HUYGEN

LI CO 92.70 95.62 .09 .16 .61 60E OPACITY ( WHITE BACKING ), ZEISS ELREPHO, FMY=C(10) FILTBR

Li 22 a 92.70 95.64 .10 .18 .88 60D OPACITY ( WHI TE BACKING ), DIANO/BNL

L2 55 o 92.71 95.63 .11 .16 .90 60 B OPACITY ( WHITE BACKING ), BAUSCH L6MB

L673R a 92.73 95.66 .14 .18 . 74 60 B OPACITY ( WHI TE BACKING ), BAUSCH LOMB

L3i 7 a 92.73 95.16 = .14 = .24 1.92 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

LI 9 OP a 92.74 95.60 .11 .12 .82 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L2I OB a 92.75 95.47 .05 .01 .92 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

Li 39 a 92.75 95.21 = .10 = .21 1.08 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L349 a 92.80 95.45 .08 = .04 .89 60D OPACITY ( WHITE BACKING ), DIANO/BNL

L587 a 92.84 95.67 .24 .12 . 57 60B OPACITY ( WHI TE BACKING ), BAUSCH LOMB

Li 59 a 92.85 95.66 .24 .11 . 68 60 R OPACITY ( WHITE BACKING ), THWI NG<= ALBERT (FORMERLY SRL ) L2 81 a 92.90 95.63 .26 .06 1.10 60D OPACITY ( WHITE BACKING ), DIANO/BNL

L3I 5 a 92.95 95.44 .20 = .13 1.08 60D OPACITY ( WHITE BACKING ), DIANO/BNL

L2i OD a 92.97 95.50 .25 = .09 .77 60 D OPACITY ( WHITE BACKING ), DIANO/BNL

L225 a 92.99 95.67 .36 .04 1.12 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

Li 50 a 93. CO 95.45 .25 = .15 1.45 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L230 a 93.00 95.55 .30 = .07 .64 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L223B a 93.01 95.69 .39 .05 .68 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L390 a 93.08 95.67 .43 = .01 .98 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L259 a 93.08 95.25 .20 = .36 1.17 60 B OPACITY ( WHI TE BACKING ), BAUSCH LOMB U 58 a 93.1 0 95.77 .51 .06 .79 60D OPACITY ( WHITE BACKING ), DIANO/BNL

L599 a 93.10 95.65 .44 = .G4 1.50 6 OB OPACITY ( WHI TE BACKING ), BAUSCH LOMB

LI 2i a 93.10 95. ^8 .51 .07 .92 60 B OPACITY ( WEI TE BACKING ), BAUSCH LOMB U 62 a 93.11 95. 54 . 39 = .13 1 .£8 60 W OPACITY ( WHI TE BACKING ), HUYGEN, DIGITAL

L58I a 93.11 95. 38 • 3 0 = .27 .84 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

27
REPORT NO. S5G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T60=l TABLE 2 OPACITY <89* REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 6S=75, OPACITY OF PAPER (15 DEG./DI FFOSB , ILLCMINANT A) BAL TYPE

LAB MEANS COORDINATES AVG

CODB F J57 K23 MAJOR MINOR R. SDR VAR PR0PERTY== «= TEST INSTRUMBNT°==CONDIT IONS

L2 7 0 0 93,1 2 95.91 .60 .17 1.15 60 B OPACITY ( WHI TB BACKING )BAUSCH LOMB

L2 61 0 93.58 95.97 .68 .18 .57 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

LI 52 0 93.25 95. 67 .58 = .10 .65 60 B OPACITY ( WHI TB BACKING ), BAUSCH LOMB

L31 8 * 93.25 95. 35 .40 =.37 1.45 60 B OPACITY ( WHI TE BACKING ), BAUSCH LOMB

L31 4 93.32 95.71 .66 = .11 1.21 60 T OPACITY ( WHITE BACKING ), SMALL SPHERE COLOR EYB

L30 8 0 93.39 95.57 .64 =.27 1.25 60 II OPACITY ( WHITE BACKING ), HUYGBN

L& 3 4 0 93.40 95. 80 .77 =.08 1 . 75 60 R OPACITY ( WHI TE BACKING >, THW I NG= ALBB RT ( FORMERLY SRL ) L32 6 0 93.45 96.19 1.03 .22 1.19 60 B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L323 0 93.47 95. 80 • 83 = .12 . 87 60 W OPACITY ( WHITE BACKING ), HUYGEN, DIGITAL

La 0 5 0 93.58 96.10 1.09 .07 1.11 60 H OPACITY ( WHI TB BACKING ), HUYGEN

L39 6 93.60 96.05 1.08 .02 2.18 60 X OPACITY : GIVE INSTR. MAKE, MODEL; ( )WHITE OR < )PAPER BACKING

L21 3 0 93.65 96.03 1.11 = .03 1.46 60B OPACITY ( WHITE BACKING )

BAUSCH LOMB

L378 0 93.66 95.86 1.02 = .17 .88 60D OPACITY ( WHITE BACKING >, DIANO/BNL

L2 62 X 94.39 96.72 2. 1

.14 .60 60 R OPACITY ( WHI TB BACKING), THWING~ ALBERT (FORMERLY SRL )

GM2A NS : 92.71 95.44 1.00 95% ELLIPSE: 1.43 .37 WITH GAMMA - 33 DEGREES

28
PERCENT

OPACITY, B£L TYPE, 897. BACKING

SAMPLE J57 3 92.7 PERCENT SAMPLE K23 = 95-4 PERCENT

PERCENT

29
REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T60=2 TABLE 1 OPACITY (PAPER BACKING) IN PERCENT

TAPPI STANDARD T425 6S~75, OPACITY OF PAPER (15 DBG. /DIFFUSE, ILLUMINANT A) = B4L TYPE SAMPLE PRINTING

LAB J57 94 GRAMS PBR SQUARB METER

CODE MEAN DBV N .DEV SDR R. SDR

L190C 93.33 .26 .97 .29 . 58

Li 90R 93.11 .04 • 16 .35 • 69 L236B 93.23 • 16 .60 1 .02 2. 01 L243 93 .04 “ • 03 °.10 .48 .95

L54 3 92.62 o.45 1.63 .39 .76

GR. MEAN - 93.07 PBRCBNT GRAND MEAN

SD MEANS • .27 PERCENT SD OF MEANS AVERAGE SDR - .51 PERCENT

TOTAL NUMBER OF LABORATORIES REPORTING - 5

SAMPLE PRINTING TEST D. - 1 0 K23 103 GRAMS PER SQUARE METER

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

96.05 .33 1.25 .30 .83 60C 0 LI 90C

95. 87 .15 .58 • 24 . 66 60C 0 LI 90R 95.36 = .36 = 1.33 .58 1.63 60C 0 L236B

95.74 .02 .09 .37 1.03 60C G L243 95.56 = .16 = .58 .30 .84 60V G L543 95.72 PERCENT TEST DETERMINATIONS - 10 .27 PERCENT 5 LABS IN GRAND MEANS

AVERAGE SDR - .36 PERCENT

Best values: J57 93.0 percent

K23 95.7 percent

REPORT NO. 550 TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS 160=2 TABLE 2 OPACITY (PAPER BACKING) IN PBRCENT

TAPPI STANDARD T425 0S~75, OPACITY OF PAPER (15 DBG. /DI FFUSE , ILLUMINANT A) = BAL TYPE

LAB CODB F MEANS

J57 K23 COORDINATESMAJOR MINOR

AVG

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

L54 3 o 92.62 95.56 = .43 .19 . 80 60V OPACITY ( PAPER BACKING )

D I A NO/BNL

L2 4 3 e 93.04 95.74 = .00 • 04 .99 60C OPACITY ( PAPBR BACKING ), BAUSCH LOMB

LI 90G 93.11 95. 87 • 14 . 08 • 68 60 C OPACITY ( PAPER BACKING >, BAUSCH LOMB

L2 36 B 0 93.23 95.36 = .13 " . 37 1.82 60C OPACITY ( PAPER BACKING ), BAUSCH LOMB

L190C 0 93.33 96.05 .42 . 06 .71 60C OPACITY ( PAPBR BACKING ) # BAUSCH LOMB

GMEANS

93.07

95% 95.72ELLIPSE: 1.59 1.09 1.00 WITH GAMMA - 43 DEGREES

30
REPORT NO. 55G TAPPI COLLABORATI VB REFERENCE PROGRAM SEPTEMBER 1970 ANALYSIS T60= 3 TABLB 1 OPACITY (PAPER BACKING) IN PBRCBNT

TAPPI SUGGESTED METHOD T51 9 OS=70, DIFFUSE OPACITY OF PAPER = ILLUMINANT C, ELRBPHO TYPE SAMPLE PRINTING SAMPLE PRINTING TBST D, - 10 LAB J57 94 GRAMS PBR SQUARE MBTER K23 103 GRAMS PER SQUARE METER

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

LI CO 93.68 .03 .25 .24 1.07 96.37 .00 .04 .21 1 .10 60 J 0 LI 00

LI 50 93.40 =.25 =1.90 .11 .49 96.26 = .10 = . 99 .14 .71 60 J 0 LI 50

LI 82E 93.61 =.04 =.28 .30 1.32 96.30 = .07 = .63 .21 1 . 07 60 J e LI 82E L236 93.53 = .12 •=.89 .23 1.02 96.33 = .04 = .34 .24 i .23 60 J 0 L236

L242 93.81 .16 1 .23 .27 1.20 96.61 .24 2.31 .41 2 .12 60 J e L242

L2 4 4 93.75 .10 .77 .22 . 99 96.31 = .06 = . S3 .19 .96 6 OF 0 L2 44

L2 5I 93.51 •=.14 = 1.02 .21 . 96 96.24 = .12 = 1.15 . 1 3 .68 60F 0 L251

L30 9 91 .64 <r*> 0 CM • O =15.14 .26 1.17 94.92 =1.45 = 13.69 .10 .54 6 0J M L309

L360 93.47 =.10 = 1.34 .21 . 94 91.91 =4.46 = 42.18 .19 .96 6 OF * L360

L44 6 93.68 .03 .25 .15 . 65 96.41 .04 .43 .15 . 31 6 0 J 0 L446

L484 93.59 =.05 = .41 .40 1.76 96.41 .04 .41 .15 .76 60F 0 L4 84 L575 93.81 .16 1.23 .19 . 85 96.47 .10 .98 .17 .69 60 J e L5 75 L59 8 93.75 .10 .77 .16 .71 96.31 = .06 = .53 .1 3 .67 60 J 0 L598

OR, MEAN - 93.65 PERCENT GRAND MEAN • 96.37 PERCENT TBST DETB RMINATI6NS - 10

SD MEANS • .13 PERCENT SO 0F MEANS - .11 PERCENT 1

LABS IN GRAND MEANS

AVERAGB SDR - .22 PERCENT AVERAGE SDR - .19 PERCENT

TOTAL NUMBER OF LABORATORIES REPORTING 13

Best values: J57 93.7 percent

K23 96.4 percent

The following laboratories were omitted from the grand means because of extreme test results: 309, 360

REPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T60=3 TABLE 2 OPACITY (PAPER BACKING) IN PBRCENT

TAPPI SUGGESTED METHOD T519 0S=78, DIFFUSE OPACITY OF PAPER = ILLUMINANT C, ELREPHO TYPE

SEPTEMBER 1978

LAB MEANS COORDINATES AVG

C0DE F J57 K23 MAJOR MINOR R. SDR VAR PR0PERTY== = TEST INSTRUMENT=== CONDITIONS

L309 ft 91 .64 94.92 =2.47 = .01 .86 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) FILTER

LI 50 0 93.40 96.26 = .27 .06 .60 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) FILTER

L360 * 93.47 91 .91 = 2. 73 = 3.52 .95 60 F OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) NO TRAP

L2 51 0 93.51 96.24 = .18 = .02 .82 60F OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) NO TRAP

L236 0 93.53 96.33 = .12 .04 1.12 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) FILTBR

L484 0 93.59 96.41 =.02 .07 1.26 60 F OPACITY ( PAPER BACKING ), ZEISS ELREPHO, F MY=C( 10 ) NO TRAP

LI 82E 0 93.61 96. 30 = .07 = .03 1.20 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) FILTER

LI 00 0 93.68 96.37 . 03 = .02 1 . 08 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) FILTER

L446 0 93.60 96.41 • C5 .02 . 73 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) FILTER

L59 3 0 93.75 96.31 . 05 = .11 . 69 60 J OPACITY ( PAPER BACKING ), ZEISS ELRFPHO, F MY=C( 10 ) FILTBR

L24 4 0 93.75 96.31 . 05 = .11 .98 60 F OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) NO TRAP

L242 0 93.81 96.61 .27 .10 1.66 60 J OPACITY ( PAPER BACKING >, ZEISS ELREPHO, FMY=C( 10 ) FILTER

L575 0 93.81 96.47 .19 = .01 .87 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY=C( 10 ) FILTER

GMEANS

93.65 96.37 1.00

95 % ;ELLIPSE: .48 .21 WITH GAMMA - 35 DEGREES

31
PERCENT

96-0

96-2

96.4

96-6

96

-

OPACITY, ELREPHO TYPE, PAPER BACKING

SAMPLE J57 = 93.65 PERCENT SAMPLE K23 = 96.37 PERCENT

oo CD + , X . « NOT [N GRAND MEANS

C\J ^ ANALYSIS T60-3

LU

Q_

CE

CO

O

©

O

Q

-©-

©

o

o o

o

SAMPLE J57

93.2 ' 93-4 93-6

PERCENT

93-8 94.0 94 .2

32
REPOBT NO. S5G TAPPI COLLAB0RATI VB REFERENCE PROGRAM SEPTEMBER 1578 ANALYSIS T65=l TABLE 1 DIRECTIONAL BLUE REFLECTANCB IN PERCENT

TAPPI STANDARD T452 0S=77, 'BRIGHTNESS*; MARTIN SWEETS ( ACBT 4 GE ) IS STANDARD FOR THIS ANALYSIS

SAMPLB PRINTING SAMPLE PRINTING TEST D. - 8 LAB J 35 94 GRAMS PBR SQUARE METER E78 116 GRAMS PER SQUARE METER

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

LI 0 8 83.81 = .09 = .20 .12 . 95 96.29 .17 .25 .14 .99 65M 0 LI 08

LI 32 83.59 = .32 = .69 .14 1.03 96.70 .59 • 86 .11 .78 65N 0 LI 32

LI 58 84.00 .09 .20 .09 .70 96. 66 .55 . 80 .09 .67 65N 0 LI 58 L176A 83.60 = . 31 = .66 .19 1.40 94.70 = 1.41 = 2.07 .14 1.03 65A 0 LI 76A L1S0C 83.70 = .21 = .45 .11 . 81 95.42 = .69 = 1.01 .21 1 . 50 6 5A 0 LI 90C

L21 0M 84.70 .79 1.71 .15 1.15 96.37 .26 .38 .07 .52 65M 0 L210M

L210N 83.82 = .08 = .18 .12 . 88 95.96 = .15 = .22 .09 .67 65M 0 L210N

L21 1 82.97 = .93 = 2.01 .10 .79 94.35 = 1.76 = 2.58 .09 .68 65N 0 L211 L22S 83.97 .07 .15 .09 .67 96.47 .36 .53 .10 .76 65N 0 L225

L243 83.46 = .44 = . 96 .11 . 80 95.92 = .19 = .27 .12 .85 65A 0 L243

L259 84.05 .14 .31 .03 .57 96.25 .14 .20 .11 .76 65M 0 L259

L275 83.54 = .37 = .8C .09 .70 95.87 = .24 = .35 .10 .76 65M 0 L275

L2 88 84.27 .37 .79 .05 .35 96.37 .26 • 38 .09 .65 65N 0 L2 88 L3C8 85.14 1.23 2.65 .15 1.14 97.20 1.09 1.59 .08 .55 65M a L308

L3S 5 83.72 = .18 = .39 .07 .54 96.79 .67 .99 .10 .73 65N 0 L315

L31 7 83.89 = .02 = .04 .06 . 49 95.60 = .51 = .75 .09 .68 65M 0 L317

L52 3 83.89 = .02 = .04 .06 .49 96.15 .04 .05 .09 . 68 65N 0 L523

L543 84.04 .13 .28 .32 2.40 96.29 .17 .25 .14 .99 65M 0 L543

L5 65 83.99 .08 .17 .12 .95 96.51 .40 .58 .14 .99 65A 0 L5 65 L5S8 84.42 .52 1.12 .45 3.39 95. 7C = . 41 = .60 . 68 4.98 65M 0 L598

L673R 83. 4 3 = .46 = .98 .11 . 81 96.77 . 66 .97 .10 .76 65N 0 L673R

GR. MEAN - 83.92 PERCENT GRAND MEAN - 96.11 PERCENT TEST DETERMINATIONS • 8 SD MEANS • .46 PERCENT SD 0F MEANS - .68 PERCENT 21 LABS IN GRAND MEANS

AVERAGE SDR • .13 PERCBNT AVERAGE SDR .14 PERCENT

LI 05 84.37 .47 1.01 .12 . 88 97.92 1.81 2.65 .09 .65 65T LI 05 L176I 01.22 *=2.68 = 5.78 .09 .67 94.14 = 1.98 = 2.89 .09 .67 651 Li 761

L21 3 84.65 .74 1.60 .09 .70 97.57 1.46 2.14 .41 3.00 65T L213

L223 85.86 2.96 4.22 .05 .39 97. 87 1.76 2.58 .05 • 34 65G L223

L22 4 85.30 1.39 3.00 .05 .41 96.70 .59 . 86 .08 .55 65H L224

L232 85.56 1.66 3.57 .50 3.76 97.00 .89 1.30 .00 • 00 65P L2 32 L249 84.91 1.01 2.17 .20 1.49 96.40 .29 .42 .21 1.51 65P L2 49

L2 56 83. 82 «= . 0 3 = .18 .07 .54 98. 2* 2.12 3.11 .07 • 54 65H L256

L26C- 84.12 • 22 .47 .15 1.13 97.25 1.14 1.66 .08 .55 65P L260

L2 7 8 84.87 • 97 2.09 .13 1.01 96.47 .36 .52 .25 1.81 65P L278

L301 84.35 .44 .96 .14 1.07 97.21 1.10 1.61 .08 .61 65G . L301 L312 85.06 2.16 2.49 .18 1.34 96.87 .76 1.11 1.19 8. 69 65P L312

L32 8 85.00 1.09 2.36 .00 .00 98.00 1.89 2.76 .00 .00 65P L328

L339 83.25 = . 66 = 1.42 .38 2.67 97.37 1.26 1.84 .44 3.24 65P L339

L380 84.00 .09 .20 .00 .00 94.00 = 2.11 = 3. 09 .00 .00 65P L380

L442 97.85 13. 94 30. 06 .09 .70 84.47 =11 .64 Q >1 • O f\> .52 3.83 65T L4 42 L564 85. 44 1 .53 3.30 .50 3. 76 94.62 =1.49 = 2. 1 8 1.09 8. 00 6EP L5 54

L5 87 82.12 = 1.78 = 3.84 .12 . 88 95. 87 = .24 = .35 .07 .52 651 L5 87

1591 84.47 .56 1 .22 .04 .29 99.16 3.05 4. 45 .20 1 • 48 65H L591 L617 CM •

w* OD = 2.78 = 6. 00 .23 1 . 76 92.56 = 3.55 = 5.19 .1 8 1.29 65P L61

TOTAL NUMBER OF LABORATORIES REPORTING * 41 Best values: J35 83.6 +0.9 percent

E78 96.0 +0.8 percent

33
REPORT HO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T65=l TABLE 2 DIRECTIONAL BLUE RBFLBCTANCB IN PERCENT

TAPPI STANDARD T4E2 6S=77, ‘BRIGHTNESS 1 ; MARTIN SWEETS ( ACBT 4 GF ) IS STANDARD FOR THIS ANALYSIS

LAB MBANS COORDINATES AVG

CODE F J35 E70 MAJOR MINOR R. SDR VAR PR0PBRTY== = TEST INSTRUMBNT°<=<=CONDI T ION S

L6E 7 81 • i 2 92.56 <=4.42 .90 1.52 65 P BLUE REFLECTANCB ( DIRBCT IONAL ) , PHOTOVOLT

LI 76

81.22 94.14 =2.97 1.52 .67 651 BLUE RBFLBCTANCB ( DIRBCTI0NAL ), HUNTER D25D2A

L50 7 82.12 95.87 = 1.01 1.49 .70 651 BLUB REFLECTANCE ( DIRBCT I0NAL ), HUNTBR D25D2A

L211 0 82.97 94.35 = 1.99 .05 .73 65 N BLUE REFLECTANCE ( DIRECTIONAL ), DIAN0/MARTIN SWEETS, S=4 L339 83.25 97.37 .84 1.15 3.06 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L673R 0 83.45 96. 77 .39 .70 .78 65N BLUE REFLECTANCE ( DIRECTIONAL ) # DIANO/MARTIN SWBETS, S=4 L243 0 83.46 95.92 = .37 .31 .83 65A BLUE REFLECTANCE ( DIRECTIONAL ). MARTIN SWBBTS ( ACBT ), S= 2 L275 0 83.54 95.87 = .38 .22 .73 65 M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWBBTS (GE). S=1

Li 32 0 83.59 96.70 .38 . 55 .91 65 N BLUE REFLECTANCE ( DIRBCT IONAL > # DIANO/MARTIN SWEETS, S=4

L17 6A 0 83.60 94.70 = 1.4C = .36 1.22 65A BLUB REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS (ACBT ),S=2

Li 9 OC 0 83.70 95. 42 =.71 = .12 1.16 65 A BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS ( ACBT ), S=2 L315 0 83.72 96.79 .52 .46 .63 65 N BLUE REFLECTANCE ( DIRECTIONAL ), DIANO/MARTIN SWBETS. S= 4

Li 0 8 0 83.81 96.29 .11 .16 .97 65M BL UE REFLBCTANCE ( DIRECTIONAL ), MARTIN SWEETS (GE). S=1 L25o 83.82 98.24 1.86 1.02 .54 65H BLUE REFLECTANCE ( DIRECT IONAL )

HUNTER

L2E ON © 83.82 95. 96 = .17 .01 .78 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS (GE). S=1

L52 3 © 83.89 96.15 .02 .03 . 58 65N BLUE REFLECTANCE ( DIRECTIONAL ), DIANO/MARTIN SWEETS, S=4

L32 7 0 83.89 95.60 = .47 = •21 .58 65 M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SW3BTS (GE), S=1 L22 5 0 83.97 96.47 .35 .10 .72 65 N BLUE REFLBCTANCE ( DIRECTIONAL ), DIANO/MA RTIN SWEETS. S=4 L565 0 03.99 96.51 .39 .11 .97 65A BLUE REFLECTANCE ( DIRECTIONAL ). MARTIN SWBBTS ( ACBT ), S=2

LI 58 0 84.00 96.66 .53 .16 .69 65N BLUE REFLECTANCE ( DIRECTIONAL ), DIANO/MARTIN SWEETS. S=4 L380 84.00 94.00 = 1.85 = 1.03 .00 65 P BL UE REFLECTANCE ( DIRECTIONAL >, PHOTOVOLT

L543 0 84.04 96.29 .21 = .04 1.69 65 M BLUB REFLECTANCE ( DIRECTIONAL ), MARTIN SWEBTS (GE), S=1 L259 0 84.05 96.25 .19 = .07 . 68 65 M BLUB REFLBCTANCE ( DIRECTIONAL ), MARTIN SWBBTS (GE), S=1

L2 6 0 84.1 2 97.25 1.11 . 31 .84 65P BLUB REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L288 0 84.27 96.37 .40 = .21 .50 65N BLUE REFLECTANCE ( DIRECTIONAL >, DIANO/MARTIN SWEETS, S=4

L3C I 84.35 97.21 1.18 .09 .84 65G BLUE RBFLECTANCE ( DIRBCT IONAL ) # GARDNER

Li 0 5 84.37 97.92 1.83 .39 .77 65T BLUE REFLECTANCE ( DIRECTIONAL ), HUNTER D25D2M

L59 8 0 64.42 95.70 = .14 = .65 4.18 65M BLUE REFLBCTANCE ( DIRECTIONAL ), MARTIN SWBETS (GE), S=1 L59i 84.47 99.1 6 2. 98 .86 .68 65U BLUE REFLBCTANCE ( DIRECTIONAL ), HUNTER

L2i 3 84.65 97.57 1.64 = .01 1.85 65T BLUB REFLECT ANCB ( DIRECTIONAL ). HUNTBR D25D2M

L25 OM 0 84.70 96.37 .59 = .59 . 83 65 M BLUE RBFLECTANCB ( DIRBCTIONAL ), MARTIN SWBETS (GE), S=1

L2 70 84.87 96.47 .75 = .71 1.41 65P BLUB RFFLBCTANCE ( DIRECTIONAL ), PHOTOVOLT

L249 84.91 96.40 .71 = .77 1 . 50 65 P BLUB REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L328 85.0 0 98.00 £.18 = .14 .00 65P BLUB RBFLECTANCE ( DIRECTION/L ), PHOTOVOLT

L3i 2 85. C6 96.87 1.20 = .69 5.02 65 P BLUE RBFLECTANCB ( DI RBCT IONAL ) , PHOTOVOLT

L30 8 0 85.1 4 97.20 1.52 = .62 .85 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS (GE). S=1 L224 85.30 96.70 1.15 = .98 .48 65H BLUE RBFLECTANCE ( DIRBCT IONAL ), HUNTER

L564 85.44 94.62 =. 65 = 2.03 5. 88 65 P BLUE REFLBCTANCE ( DI RBCT IONAL ) # PHOTOVOLT

L232 05.56 97.00 1.53 = 1.09 1.88 65 P BLUB REFLECTANCE ( DI RBCT IONA L ). PHOTOVOLT

L223 85.8b 97.87 2.45 -.96 .37 65G BL UE REPLECT ANCE ( DI RBCT IONAL > # GARDNER

L442 97.85 84.47 =4. 1 8 =17.67 2. 26 65T BLUE RBFLBCTANCE ( DIRECTIONAL ), HUNTER D25D2M

GMEANS: 83.91 96.11 1.00 95% ELLIPSE: 2. 02 .99 WITH GAMMA 63 DEGREES

34
PERCENT

BLUE REFLECTANCE, DIRECTIONAL

SAMPLE J35 = 83.9 PERCENT SAMPLE E78 =96.1 PERCENT

PERCENT

35
REPORT NO. 55

TAPPI COLLABORATIVE REFERENCE PR0GRAM SEPTEMBER 1978 ANALYSIS T65°2 TABLE 1 DIFFUSE BLUE REFLECTANCB IN PERCENT ( GLOSS TRAP)

TAPPI SUGGESTED METHOD T525 SU=72, BRIGHTNESS OF PULP (DIFFUSB ILLUMINATION AND 0 D3G. OBSERVATION)

SAMPLE PRINTING SAMPLB PRINTING TEST D>• • 8 LAB J35 94 GRAMS PER SQUARE METER E78 116 GRAMS PER SQUARE METBR

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

LI 00 84.87 .36 .64 .08 .90 97.88 1.39 1.62 .06 1.06 65F 0 LI 00

LI 21 63.73 <=.78 = 1.37 .20 2« 35 95.25 = 1.24 = 1.46 .05 .87 65K 0 LI 21

LI 50 84.10 °.41 = .73 .07 .83 97.04 .55 .64 .05 . 88 65Q 0 LI 50

LI 70 84.1 5 = .36 >=.64 .05 . 63 95.55 = .94 = 1.10 .05 .87 65B 0 LI 70

LI 82 84.48 = .03 = .05 .08 . 88 96.12 = .37 = .43 .05 .76 65F 0 LI 82

L21 OK 85.01 .50 .88 .06 .70 96.26 = .23 = .27 .07 1.21 65K 0 L210K

L236 85.05 • 54 .95 .07 .84 97.37 .88 1.03 .06 1.06 6 5F 0 L2 36 L242 84.30 °.2S = .37 .06 .76 96.60 .11 .13 .09 1.53 6 5F 0 L2 42 L280 84.61 .09 .16 .13 2.55 96.66 .17 .20 .09 1 .47 65Q 0 L2 80 L32 5 85.16 .65 1.15 .13 1.55 97.30 .81 .94 .08 1.23 65F e L325

L349 84. 3C = .22 = .38 .06 .75 96.67 .18 .21 .07 1.15 65K 0 L349

L362 83.71 = .80 = 1.41 .09 1.04 95.70 = .79 = .93 .05 . 37 65K 0 L362

L44 6 84.31 = .2C = .36 .04 .51 96.28 = .21 = .25 .04 .57 65F 0 L4 46 L57 3 85.90 1.38 2.44 .09 2.09 98.00 1.51 1.77 .05 . 85 65F 0 L5 73 L57 5 84.32 = •19 = .34 .OS • 63 95.51 = .98 = 1.14 .05 .76 65F 0 L575

L59 8 84.20 = • 32 = .56 .08 • 98 95.66 = .83 = .97 .05 .84 65K 0 L598

GR. MEAN - 84.51 PERCENT GRAND MEAN - 96.49 PERCBNT TEST DETERMINATIONS - 8 SD MEANS - • 57 PERCENT SD OF MEANS - .85 PERCBNT 16 LABS IN GRAND MEANS

AVERAGE SDR - .09 PERCBNT AVERAGE SDR -• 06 PERCENT

L2 8 9

00 O' ffl . 38 .66 .04 .42 96.64 .15 .17 • 14 2.30 6 50 L2 89 TOTAL NUMBER OF LABORATORIES REPORTING - 17

Best values: J35 84.5 +0.7 percent

E78 96.5 +1.3 percent

REPORT NO

TAPPI

. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM ANALYSIS T65«=2 TABLE 2 DIFPUSE BLUB REFLBCTANCE IN PERCBNT (GLOSS TRAP) SUCGESTED METHOD T525 SU°72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND C DEG.

SEPTEMBER 1978

OBSERVATION

LAB MEANS COORDINATES AVG

CODE F J35 E78 MAJOR MINOR R. SDR VAR PROPERTY03 «= TEST INSTRUMENT0 °*= CONDITION S L362 0 83.71 95.70 = 1 . 09 .28 .96 65 K DIFFUSE REFLECTANCE, BLREPHO, GL.TRAP. MGO ( ZEISS ) BASE

LI 21 0 83.73 95.25 = 1.47 .03 1.61 65 K DIFFUSB REFLECTANCB, ELREPHO, GL.TRAP. MGO (ZBISS) BASE

LI 50 0 84.10 97.04 .26 .64 . 86 65Q DIFFUSE REFLECTANCE. ELREPHO, GL. TRAP, ZEISS ABSOLUTE BASE

Li 7 0 0 84.1 5 95. 55 = .99 = .17 .75 65 B DIFFUSB RBFLECTANCE, BLREPHO, GL.TRAP, NBS ABSOLUTE BASF

L59 8 0 84.20 95.66 = . 88 = .16 .91 65 K DIFFUSE RBFLECTANCE, ELREPHO. GL.TRAP, MGO (ZBISS) BASE

L349 0 84.30 96.67 .05 .28 .95 65 K DIFFUSE REFLECTANCE, BLREPHO, GL.TRAP. MGO (ZEISS) BASE

L24 2 0 84.30 96. 60 = .01 .24 1.14 65 F DIFFUSE REFLECTANCE. ELREPHO, GL.TRAP, NRC°PTB ABSOLUTE BASE

L446 0 84.31 96.28 = .29 .07 .54 65F DIFFUSE REFLECTANCE, ELREPHO, GL.TRAP. NRC° PTB ABSOLUTE BASB

L57 5 0 84.32 95.51 = .9 4 = .33 .70 65 F DIFFUSB REFLECTANCE. BLREPHO, GL.TRAP, N RC°PTB ABSOLUTB BASE

LI 82 0 84.48 96. 1 2 = .33 = .16 .82 65F DIFFUSE REFLBCTANCE, ELREPHO, GL.TRAP, N RC° PTB ABSOLUTE BASE

L2 8 0 0 84.61 96. 66 .19 .01 1 . 51 65Q DIFFUSE REFLECTANCB, BLREPHO, GL.TRAP, ZEISS ABSOLUTE BASB

LI 00 o 84.87 97.88 1.38 .40 .98 65F DIFFUSE REFLBCTANCE, ELREPHO, GL.TRAP, NRC-PTB ABSOLUTE BASE

L2 89 84.89 96.64 .32 = .25 1.36 650 DIFFUSE REFLECTANCE. BLREPHO, GL.TRAP, SPBCIFIC CALIBRATION

L21 OK 0 85.01 96.26 .06 = .55 .96 65K DIFFUSE RBFLBCTANCB, ELREPHO. GL.TRAP, MGO ( ZEISS ) BASE

L236 0 85.05 97.37 1.03 = .01 .95 65F DIFFUSE REFLECTANCE. ELREPHO. GL.TRAP, NRC°PTB ABSOLUTE BASE

L325 0 85.16 97.30 1.03 = .15 1.39 65 F DIFFUSB REFLECTANCE. ELREPHO, GL.TRAP. NRC-PTB ABSOLUTE BASE

L57 3 0 85.90 98.00 2. 01 = .41 .97 65F DIFFUSE REFLECTANCE. ELREPHO. GL.TRAP, N RC° PTB ABSOLUTB BASE

GMEANS: 84.51 96. 49 1.00 95% iELLIPSE

2. 77 .88 WITH GAMMA - 59 DEGRBES

36
PERCENT

94.0

95.0

96.0

97.0

98-0

99-

BLUE REFLECTANCE, DIFFUSE, NITH TRAP

SAMPLE J35 = 84.5 PERCENT

t l l 1 1 SAMPLE E78 = 96.5 PERCENT

1 1 1 1 1 1

OO +.X.B NOT IN QRANO MEANS

_ r- _ LU ANALYSIS T65-2

LU

- -J _ Q_

z:CL

- CO O

o

- CO

o

o -

8

o +

o o

c

0 0

1— Q G - O

-

1 1

1

1 1

1 SAMPLE J35

1 1 r i t

1 82.0 83.0 84.0 85.0 86.0 87.0 88-0

PERCENT

37
REPORT NO. 5SC TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T65=3 TABLE 1 DIPFUSB BLUB RBFLECTANCE IN PERCENT ( NO GLOSS TRAP > TAPPI SUGGESTED METHOD T525 SU=72, BRIGHTNESS OF PULP (DIFFUSB ILLUMINATION AND 0 D30. OBSERVATION)

SAMPLE PRINTING SAMPLB PRINTING TEST I). ' 8 LAB <135 94 GRAMS PER SQUARE METBR B78 116 GRAMS PER SQUARE MBTBR CODE MBAN DEV N. DEV SDR R. SDR MEAN DEV N.DBV SDR R. SDR VAR F LAS

LI 53 83.79 = .49 = .29 .13 1.22 94.47 = 1.03 = .69 .11 .79 6 5B 0 LI 52

LI 6

84.26 = .01 = .01 .10 .90 94. 84 = .65 = .43 .06 .41 65E 0 LI 61 L173A 85.33 1.06 .62 .04 .33 96.00 .50 .33 .04 .26 6SE 6 LI 73A

L238A 84.30 .02 .01 .05 .50 94.59 = .91 = .60 .05 .34 65E 6 L2 38A

L2 44 86.44 2.16 1.27 .15 1.43 96.69 1.19 .79 .07 .48 65D 6 L244

L25S 83.91 = .36 = .21 .09 .86 95. 48 = .02 = .02 .17 1.25 65E 0 L251 L3E5 87.15 2.88 1.69 .12 1.12 98.89 3.40 2.26 .09 .70 65D o L255

LZ85 84.97 .70 .41 .17 1.65 96.55 1.05 .70 .18 1.37 65E a L285

L305 81 .71 = 2.56 = 1 .51 .11 1.08 53.66 = 1.84 = 1.22 .57 4.25 65D 0 L305

L309 84.99 .72 .42 .06 .61 96.25 .75 .50 .08 .62 65J 0 L309

L3C 0 60.74 = 3.53 = 2.08 .23 2.21 93.21 =2.29 = 1.52 .20 1.50 65B o L360

L364 84.11 = .16 = .09 .06 .60 96.25 .75 .50 .05 .40 65S 6 L384

L484 83.27 = 1.00 = .59 .12 1.09 91.34 =4.16 = 2.77 .06 .47 6 5E * L484

L565 83.84 = .43 = .26 .05 .49 94.61 = .89 = .59 .08 .62 65W 0 L565

OR. MEAN • 84.27 PERCENT GRAND MEAN - 95.50 PBRCBNT TEST DETERMINATIONS • 8 SD MEANS • 1.70 PBRCENT SD OP MBANS • 1.50 PBRCBNT 13 LABS IN GRAND MEANS AVBRAGE SDR • .11 PBRCBNT AVERAGB SDR • .13 PERCENT

TOTAL NUMBER OP LABORATORIES REPORTING • 14

Best values: J35 84.3 +2.9 percent

E78 95.5 + 2.3 percent

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

REPORT NO. 55G TAPPI COLLABORATI VB RBFBRENCB PROGRAM SBPTEMBER 1978 ANALYSIS T6S-3 TABLE 2 DIPFUSB BLUE RBFLECTANCE IN PBRCENT (NO G LOSS TRAP)

TAPPI SUOOBSTBD METHOD T525 SO*3 72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DBG. OBSERVATION)

LAB CODB P MEANS

J35 B78 COOBPINATBS

MAJOR MINOR

AVO

R. SDR VAR PR0PBRTY*»®oTBST instrument--—CONDITIONS

L360 o 80.74 93.21 =4.16 .59 1.86 65 E DIPFUSB REFLBCTANCE, BLRBPH0, NO TRAP, MGO ( ZBISS ) BASB

L30 5 0 81.71 93.66 -3.14 .30 2.67 65D DIFPUSE RBFLECTANCE, BLREPH6, NO TRAP, NKC-PTB ABSOLUTB

L484 n 83.27 91.34 = 3.49 = 2.48 .78 6 5 B DIFFUSB REFLBCTANCB, BLREPHO, NO TRAP, MOO ( ZBISS > BASB

LI 52 0 83.79 94.47 -1.05 = .46 1.01 65B DIFFUSB REFLECTANCE, ELREPH0, NO TRAP, MGO (ZBISS ) BASE

L565 0 83.84 94.61 -.91 -.38 .55 65 W DI PFUSE REFLECTANCB , BLREPHO, N0 TRAP, NBS MGO BASB

L251 6 83.91 95.48 = .29 .22 1.05 65B DIFFUSB REFLBCTANCB, BLRBPHO , NO TRAP, MGO ( ZBISS ) BASE

L384 0 84.11 96.25 .37 .67 .50 65 S DIFFUSB RBFLECTANCE, ELREPH0, NO TRAP. ABSOLUTB-UNENOWN BASE

LI 61 0 84.26 94.84 = .44 -.49 .65 65B DIFFUSB REFLECTANCB, ELREPH0 , NO TRAP, MOO (ZBISS) BASE

L23 8A 0 84. 30 94.59 = .58 = .70 .42 65B DIFFUSB RBPLBCTANCB, BLREPH0, NO TRAP, MOO (ZBISS) BASB

L28S 0 84,97 96.55 1.21 .33 1.51 65B DIFFUSB REFLBCTANCB, ELRBPH0, NO TRAP, MGO ( ZBISS ) BASE

L3C9 0 84.99 96.25 1.03 .10 .62 65 J DIFFUSB RBPLBCTANCB, BLREPHO

,

NO TRAP, NBS ABSOLUTB

L173A 0 85.33 96.00 1.13 = .32 .30 65B DIFFUSB REFLECTANCE, BLREPH0, NO TRAP, MOO ( ZEISS > BASB

L2 44 0 86.44 96.69 2.41 = .53 .96 65D DIFFUSE REFLECTANCB, BLREPH0, NO TRAP, NBC-PTB ABSOLUTE

L255 0 87.15 90.89 4.40 .66 .91 65 D DIFFUSB RBPLBCTANCB, BLREPHO, NO TRAP, NHC-PTB ABSOLUTE

GMEANS : 84.27 95.50

95* ELLIPSE: 6.53 1.46

1.00 WITH GAMMA • 41 DBGREES

38
PERCENT

BLUE REFLECTANCE, DIFFUSE, N0 TRAP

SAMPLE J3S = 84.3 PERCENT SAMPLE E78 = 95-5 PERCENT

I L_

oo

o

CD.

CD

CD

CD

e'- en

co

CD

QQ *.X.« NOT IN GRAND MEANS

rLU ANALYSIS T65-3

Q_

CL

CO

o

~G~

O

O

O

O

O

LOCD

CD

CD

CD'

CMCD

CD

O

CD

O

O

78 79 80 8? ~82~

O

& °

SAMPLE J35

83 84 85

PERCENT

86 87 88 89 90 91

39
REPORT N0. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM S2PTEMBER 1978 ANALYSIS T75° 1 TABLE 1 SPECULAR GLOSS AT 75 DBGRB3S, IN GLOSS UNITS

TAPPI STANDARD T480 6S°78, SPBCULAR GLOSS OF PAPER AND PAPERBOARD AT 75 DEGREES

LAB SAMPLEJ 20 149 GRAMS PRINTING

; PBR SQUARB METER

SAMPLE E59 CAST COATED

211 GRAMS PER SQUARE METER

TEST D. 1C CODE MEAN DBV N. DBV SDR E* SDR MBAN DBV N. DBV SDR R. SDR VAR F LAB

LI 0 8 49.55 1.02 .59 1.07 .78 86.28 1.66 .78 .15 . 36 75H O LI 08

LI 21 47.99 .46 .27 2.11 1.54 83.89 = .73 = .35 .50 1 .20 75H e LI 21

LI 22 47.61 .08 .05 1.05 .77 83.13 = 1 .49 = .70 .29 .70 75H 0 LI 22

LI 2 8 48.50 .97 .56 1 .78 1.30 85.90 1.28 .60 .32 .76 75G 0 LI 28

Li 3 4 48.44 .91 .53 1.04 .76 33. 63 = .99 = .47 .25 .61 75H 0 LI 34

LI 4 9 41.10 = 6.43 = 3.72 1.37 1 . 00 71.50 =13.12 = 6.19 1.51 3.65 75G * LI 49

LI 62 52.49 4.96 2.87 1.43 1.05 86.18 1.56 .73 .30 .72 7 5G LI 62

LX 73

48.00 .47 .27 1.49 1.09 88.10 3.48 1.64 .32 .76 75G 0 L173A

Li 82 45.99 = 1.54 = .89 1.46 1.07 84.99 .37 .17 .19 .46 75H 0 LI 82

Li 8 9 48. 80 1.27 .74 .67 .49 87.85 3. 23 1. 52 .88 2.13 7 5P 6 LI 89

Li 90C 45. 34 = 2.19 = 1.27 1.41 1. 03 82. 21 =2.41 = 1.14 .25 .61 75G 0 LI 90C

LI 90

49.54 2. 01 1.16 1.47 1 • 08 83.17 =1 .45 = .69 .37 .90 75G 0 LI 90R

L20 6 47.05 = .48 = .28 1.88 1.38 83.97 = .65 = .31 .34 .82 75H 0 L2 06

L21 0 48.95 1 .42 .82 1.36 • 99 85.87 1.25 .59 .32 .78 75H 0 L210

L21 1 46.34 = 1.19 = .69 1.19 .87 83.94 = .68 = .32 .35 .85 75H 0 L211 1212 48.99 1 .46 .85 1.20 . 88 90.98 6. 36 3.00 1.01 2.44 75P * L212

L21 3 48.81 1.28 .74 1.34 . 98 84.28 = .34 = .16 .49 1.19 7 5H O L213

L223 47.69 .16 .09 1.34 .98 84.57 = .05 = .03 .24 .57 7 5H 0 L223

1224 45.60 = 1.93 = 1.11 1.68 1.23 83.85 = .77 = .37 .31 .75 75H 0 L224

L230 47.40 = .13 = .C7 1.17 . 86 84.10 = . 52 = .25 .32 .76 75H 0 L230

L243 48.60 1.07 .62 1.35 • 99 84.00 = .62 = .29 .47 1.14 75B 0 L243

L25X 46.50 = 1.03 = .59 1.15 . 85 83. 90 = .72 = .34 .32 .76 75G 0 L251 L255 48.50 .97 .56 .71 • 52 85. 50 .88 .41 .53 1 .27 75G 0 L255

L2 5 6 47.34 = .19 = .11 1 .08 .79 83.60 = 1.02 = .48 .33 .80 75H 0 L256

L259 47.26 = .27 = .16 1.71 1.25 82.85 = 1.77 = .84 .21 .51 75H 0 L259

L2 62 47.90 .37 .22 1.15 • 8* 81 .45 =3.17 = 1.50 .44 1 .06 75K 0 L2 62 L27 8 52.01 4,48 2.59 .96 .72 86.17 1.55 .73 .47 1.14 75G * L2 76 L279 45.60 = 1.93 = 1 .11 1 .26 • 93 82.30 = 2.32 = 1.10 .48 1.17 75G 0 L2 79 L29

46.05 = 1 .48 = .65 2.21 1.62 83.43 = 1.19 = .56 .25 .60 75H 6 L2 9X L301 47.97 .44 .26 .76 • 56 83. 96 = .66 = .31 .29 .69 75H 0 L30X

L31 5 47.60 .07 .04 1.71 1.25 85.50 .88 .41 .53 1.27 75G 0 L315

13i 7 47.20 = .33 = .19 1.69 1.24 86.30 1.68 .79 .67 1.63 75H 0 L317

L32 3 45.23 = 2.30 = 1.33 1.10 . ex 83.69 = .93 = . 44 .28 .68 75H 0 L323

L32 8 45.94 = 1.59 = .92 1.26 . 93 89.37 4.75 2.24 .25 . 60 75H * L328

L33 9 50.15 2.62 1.52 1.18 . 86 86. 70 2.08 .98 1.32 3.18 75P 0 L339

L34 9 45. 46 = 2.07 = 1.20 1.27 . 93 85.38 .76 . 36 .23 .54 75H 0 L349

L372 48.10 .57 .33 .77 .57 85.55 .93 .44 .50 1. 20 75B 0 L372

L388 49.15 1.62 .94 1.06 • 77 80.05 = 4.57 = 2.16 1.12 2.70 75P » L388

L396 47.40 = .13 = .07 2.17 1 . 59 61 .60 = 3.02 = 1.43 1 .26 3.06 75G 0 L396

L456 45. 62 = 1.71 = .99 1.09 • 80 84.78 .16 .07 .19 .47 75H 0 L456

L483 47.36 = .17 = .10 1.72 1.26 83.16 = 1.46 = .69 .17 .41 7 5H 0 L4 83 L564 45.95 = 1.58 = .91 .90 . 66 85. 70 1 .08 .51 1.67 4.03 75P 0 L564

L57 3 45.90 = 1.63 = .94 2.73 2. 00 81.00 = 3. 62 = 1.71 .00 .00 75G 0 L5 73

L5 87 50.50 2.97 1.72 1 .27 .93 88. 80 4.18 1.97 .42 1.02 75H 0 L5 87 L592 45.06 = 2.47 = 1.43 .95 • 69 84. 38 = .24 = .12 .25 .61 7 5H 0 L592

L59 8 44 . 24 = 3.29 = 1.90 1.44 1 .Co 83. 63 = .99 = .47 .29 .69 75H 0 L598

L6 4 3 47. 86 .33 . 19 1.45 1.06 84.43 = .19 = . 09 .41 .99 7 5H 0 L643

L6 6 8 46.01 = 1.52 = .88 1.45 1.06 85.04 .42 .20 .07 .17 7 5G 0 L668

L67C 46.61 = .92 = .53 .93 • 68 82.87 = 1.75 = .83 .32 .78 75H 0 L6 70

GR. MEAN

SD MEANS

• 47.53

- 1.73 GLOSS UNITS GLOSS UNITS AVERAGE SDR - 1.37

GRAND MEAN

SD 0F MEANS

GLOSS UNITS

• 84.62

- 2.12 GLOSS UNITS GLOSS UNITS AVERAGE SDR

TEST DETERMINATIONS - 10 48 LABS IN GRAND MEANS

- .41 GLOSS UNITS

L2 88 46.89 °.64 = .37 1.01 • 74 83.42 “1.20 “•57 .22 .53 751 . L288 TOTAL NUMBER OF LABORATORIES REPORTING - 50

Best values: J20 47+3 gloss units

E59 85+3 gloss units

The following laboratories were omitted from the grand means because of extreme test results: 149

40
REPORT NO. 55G TAPPI COLLABORATIVE REFERENCB PROGRAM SEPTEMBER 1978 ANALYSIS T75=l TABLE 2 SPECULAR GLOSS AT 75 DEGREBS , IN GLOSS UNITS

TAPPI STANDARD T480 03=76. SPECULAR GLOSS OF PAPBR AND PAPERBOARD AT 75 DEGREES

LAB CODB F MEANS

J20 E59 C00RDINATSSMAJOR MINOR AVGR. SDR VAR PROPERTY03 => TEST INSTRUMENTOO«=C0NDI TI0NS

LI *9 • 41.10 71.60 =14.00 = .71 2.33 75 G SPECULAR GL0SS < 75 DBGREE ), GARDNER

L598 0 44.24 83.63 = 2.46 2. 40 .87 75 H SPECULAR GL0SS ( 75 DEGREE ) f HUNTER

1.592 0 45. C 6 64.3 8 = 1.41 2.04 .65 75H SPECULAR GL0SS ( 75 DBGREE ), HUNTER

L323 6 45.23 83.69 = 1.93 1.56 .74 75H SPECULAR GL0SS ( 75 DEGREE ), HUNTER

L1S0C 0 45.34 82.21 = 3.17 .75 .82 750 SPECULAR GL0SS ( 75 DEGRBE ), GARDNBR

L34 9 0 45.46 85.38 = .34 2.18 .74 75 H SPECULAR GLOSS ( 75 DEGREE >, HUNTER

L224 0 45.60 83.85 = 1.61 1.31 .99 75H SPECULAR GLOSS ( 75 DEGREE ), HUNTER

L279 0 45.60 82.30 = 2.97 .57 1.05 75 G SPECULAR GLOSS ( 75 DEGREE >, GARDNER

LASS 0 45.82 84.78 = .69 1.57 .63 75H SPECULAR GLOSS ( 75 DBGPEE ). HUNTER

L573 0 45.90 81 .00 =3.96 = .33 1.00 75G SPECULAR GLOSS ( 75 DEGRBE )

,

GARDNER

L32 8 » 45.94 89.37 3.39 3.68 .76 75 H SPECULAR GLOSS < 75 DEGREE >, HUNTER

L564 0 45.95 85. 7C .18 1.90 £.35 75P SPECULAR GLOSS ( 75 DEGREE ), PHOTOVOLT

Li 82 0 45.99 84.99 = .42 1 • 52 .77 75H SPECULAR GLOSS ( 75 DEGREE ). HUNTER

LS68 0 46.01 85.04 = .37 1.53 .62 75G SPECULAR GLOSS C 75 DEGREE >, GARDNER

L29S 0 46.05 83.43 = 1.76 .72 1.11 75 H SPECULAR GL0SS ( 75 DEGREE ), HUNTER

Lg 1

0 46.34 83.94 = 1.17 .71 .86 75H SPECULAR GLOSS ( 75 DEGREE >, HUNTER

L251 0 46.50 63.90 = 1.13 .55 .80 75G SPECULAR GLOSS < 75 DBGREE ), GARDNER

L6 70 0 46.61 82.87 = 1.98 = .04 .73 75H SPECULAR GL0SS < 75 DEGREE ), HUNTER

LESS 46.89 83.42 = 1.36 = .02 .63 751 SPECULAR GLOSS ( 75 DBGREE ), HUNTER, 20 C, 65% RH 1*06 0 47. C5 83.97 = .8C .10 1.10 75H SPECULAR GLOSS ( 75 DEGREE ), HUNTER

L3". 7 0 47.20 86. 30 1.31 1.10 1.43 75 H SPECULAR GLOSS < 75 DBGREE >, HUNTER

L259 0 47.26 62. 85 = 1.68 = .62 .88 75H SPECULAR GLOSS ( 75 DEGREE ), HUNTER

L256 0 47.34 83.60 = .99 = .33 .79 75H SPECULAR GLOSS ( 75 DEGREE ), HUNTER

L483 0 47.36 83.16 =1.36 = .56 .84 75 H SPECULAR GLOSS ( 75 DBGREE ), HUNTER

L230 0 47.40 84.10 = .52 = .14 . 81 75H SPECULAR GLOSS ( 75 DBGREE ), HUNTER

L396 0 47.40 81 .60 = 2.71 = 1.35 2.32 75G SPECULAR GLOSS ( 75 DBGREE ), GARDNER

L31 5 0 47.60 85.50 . 80 .36 1.26 75G SPECULAR GLOSS ( 75 DBGREE ), GARDNER

LI 22 0 47.61 83.13 = 1.27 = .79 .74 75 H SPECULAR GLOSS ( 75 DEGRBE ). HUNTER

L223 0 47.69 84. 57 .03 = .17 .77 75H SPECULAR GLOSS ( 75 DEGRBE ), HUNTER

L643 0 47.86 84.43 = .01 = .38 1.03 75 H SPECULAR GLOSS ( 75 DEGREE ) , HUNTER

L262 0 47.90 81 .45 = 2. 60 = 1.86 .95 75 K SPECULAR GLOSS ( 75 DEGREE ), GAERTNER < K°C TYPE ) L301 0 47.97 83.96 = .37 = .71 .63 75H SPBCULAR GLOSS ( 75 DBGRBE >, HUNTER

LI 21 0 47.99 83. 89 = .42 = .76 1.37 75H SPECULAR GLOSS < 75 DEGREE >, HUNTER

L173A 0 48.00 88.10 3.27 1.27 .93 75G SPECULAR GLOSS ( 75 DEGREE ), GARDNER

L372 0 46.10 85.55 1.09 = .05 .88 75B SPECULAR GLOSS ( 75 DEGREE ). BAUSCH LOMB

LJ 34 0 48.44 83.63 = .43 = 1.28 .69 75H SPECULAR GLOSS ( 75 DEGREE >, HUNTER

LI 26 0 46.50 85.90 1.59 = .23 1.03 75G SPBCULAR GLOSS ( 75 DEGREE ), GARDNBR

L255 0 48.50 85.50 1.24 = .43 .90 75G SPECULAR GLOSS ( 75 DEGREE ), GARDNER

LI 08 0 48. 55 86.28 1.94 = .09 .57 75H SPECULAR GLOSS ( 75 DEGREE ), HUNTER

L243 0 48.60 84.00 = .03 = 1.24 1.06 75 B SPECULAR GLOSS ( 75 DEGREE ), BAUSCH LOMB

LI 89 0 48.80 87.85 3.44 .44 1.31 75P SPECULAR GLOSS < 75 DBGRBE >. PHOT0V0LT

L21 3 0 48.81 84.28 .32 = 1.29 1 .09 75 H SPECULAR GLOSS ( 75 DEGREE >. HUNTER

L210 0 48.95 es. 87 1.78 = .64 • 69 75H SPECULAR GLOSS ( 75 DEGREE ), HUNTER

L212 * 48.99 90.98 6. 27 1.79 1.66 75P SPECULAR GLOSS ( 75 DEGREE ), PHOT0V0LT

L388 • 49.1 5 80.05 = 3.22 = 3.63 1.74 75P SPECULAR GLOSS C 75 DEGREE ), PH0TOV0LT

L190R 0 49.54 83.17 = .30 = 2.46 .99 75G SPECULAR GLOSS ( 75 DEGRBE >, GARDNER

L339 0 50.15 86.70 3.08 = 1.29 2.02 75P SPBCULAR GLOSS ( 75 DBGREE ), PH0TOV0LT

L587 0 5C.S0 88.80 5.09 = .58 .97 75H SPECULAR GLOSS < 75 DEGRBE ), HUNTER

L278 • 52.01 86.1 7 3.52 = 3.18 .93 75G SPECULAR GLOSS ( 75 DBGREE ). GARDNER

LI 62 * 52.49 86.1 6 3. 76 = 3.69 . 88 75G SPECULAR GLOSS ( 75 DEGREE ), GARDNER

GMEANS

47.53 84.62 95* ELLIPSE: 5.81 3.90

1.00 WITH GAMMA • 61 DEGREES

41
GL0SS

UNITS

SPECULAR GL0SS . 75 DEGREE

SAMPLE J20 = 47-5 GLOSS UNITS SAMPLE E59 = 84.6 GLOSS UNITS

42

*
REPORT NO. S5G TAPPI C6LLAB6RATI VE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T90=l TABLE 1 THICKNESS ( CALIPER ) 4 THOUSANDTHS OF AN INCH TAPPI STANDARD T411 09=76 SAMPLE BAG SAMPLE PRINTING TEST D. - 10 LAB B28 83 GRAMS PER SQUARE METER J6£ 93 GRAMSi PBR SQUARE METER

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

LI 0 0 5 « 42 = .09 = .71 .08 .73 6,27 = .10 = .93 .16 1.34 90V 0 Li 00

Li 05 5,59 .09 .70 .08 .72 6,50 .13 1.25 .10 .83 90Q 0 Li 05

Li 22 5.36 = .14 = 1.14 .21 1.84 6.23 = .14 = 1.33 .19 1.61 90V 0 Li 22

Li 2 3F 5.82 .31 2.47 .23 2. 03 6.61 .24 2.30 .12 1 .01 90F 0 LI 23F

LI 25 5.62 .12 .91 .24 2.10 6.39 .02 .23 .11 .91 90T 0 Li 25

Li 2 8 5.56 .05 .43 .07 . 60 6.35 = .02 = .18 .14 1.15 90T 0 LI 28

Li 4 2 5.30 = .20 = 1.61 .05 .45 6.25 = •12 = 1.11 .09 .79 9CT 0 Li 41

Li 58 5.63 .13 1.00 .C9 .84 6.53 .16 1.50 .07 .58 90T 0 LI 58

Li 5 9 5.47 = .03 = .25 .09 . 81 6.30 .01 .13 .15 1.26 9 OT 0 LI 59

Li 62 5. 52 .00 .02 .13 1.13 6.34 = .03 = .25 .11 .91 90D 0 LI 62

Li 6 e 5. 54 .04 .32 .05 .45 6.40 .03 .28 .10 . 82 90T 0 LI 66

L2 7 3B 5.61 .11 .84 .16 1.41 6.52 .15 1.41 .19 1.65 90 F 0 LI 73B

L? 74 5.53 .03 .21 .24 2. 09 6.29 = .08 = .76 .19 1.58 9CT 0 Li 74

L2 82 5.36 = .14 = 1.12 .10 . 89 6.32 = .05 = .48 .05 .43 9CL 0 LI 82

L2 83 5.42 = .08 = .62 .13 1.13 6.23 = .14 = 1.36 .16 1.35 9 OT 0 LI 83

Li 90C 5.32 = .18 = 1.45 .10 .92 6.30 = .07 = .67 .09 . 80 90T 0 LI 90C L203A 5.43 = .07 = .54 .12 1.05 6.30 = .07 = .62 .22 1.91 90T 0 L2 03A L203C 5.47 = .03 = .23 .14 1.22 6.41 .04 .37 .21 1.82 90T 0 L203C

L22 2 5.55 .05 .37 .10 . 86 6. 45 .08 .75 .12 1.01 90T 0 L2 1 2 L2? 3 5.65 .15 1.16 .10 . 86 6.56 .19 1.78 .10 .82 9 OT 0 L213

L22 3 5.63 .13 1.03 .09 .78 6.44 .07 .63 .10 .82 90V 0 L223

L22 8 5.64 .14 1.08 .20 1.73 6.49 .12 1.12 .10 .85 9 OT 0 L228

L2 3 8A 5.55 .05 .40 .07 .62 6.47 .10 .97 .04 .38 90T 0 L238A

L249 £.48 = .02 = .17 .08 .72 6.30 = .07 = .62 .19 1.60 9CT 0 L249

L2 59 5.63 .13 1 .02 .13 1.19 6.36 = .01 = .10 .12 1.05 90T 0 L2 59

L25C 5.51 .00 .03 .03 .24 6.34 = .03 = .24 .10 .81 90T 0 L260

L265.54 .03 .27 .11 .95 6.41 .04 .38 .13 1.13 90T 0 L261

L2 62 5.48 = .02 = .15 .05 . 42 6.26 = .09 = .85 .06 .54 90T 0 L262

L285 5.52 .02 .13 .19 1.66 6.37 = .00 = .01 .08 .70 90T 0 L2 85

L29 i 5.35 = .15 = 1.19 .06 . 56 6.21 = .16 = 1.52 .10 .87 90T 0 L291 L305 5.35 = .1S = 1.18 .06 .57 6.35 = .02 = .20 .08 .67 90T 0 L305

L309 5.25 = .?5 = 2.01 .12 1.05 6.17 = .20 = 1.89 .05 .41 90T 0 L309

L31 8 5.29 = .21 = 1.65 .15 1.31 6. 32 = .05 = .43 .20 1.70 90T 0 L3 3 8 L320 5.28 = .22 = 1.78 .11 . 93 6.25 = .12 = 1.16 .07 .60 90T 0 L320

L32 3 5.45 = .05 = .42 .10 . 86 6.26 = .11 = 1.04 .07 .60 90T 0 L3 2 3 L324 5 • 47 = .03 .27 .15 1.33 6.36 = .01 = .11 .19 1.63 90T 0 L324

L326 5.72 .22 1.75 .11 1.01 6.47 .10 .95 .14 1.19 90T 0 L326

L32 8 5.50 = .00 = .03 .10 . 86 6.31 = .06 = .57 .14 1.24 90T 0 L328

L332 5.46 = .05 = .37 .16 1.43 6.37 = .00 = .03 .10 . 85 90T 0 L331

L33 9 5.34 = .16 = 1.26 .17 1.49 6. 40 .03 . 32 .10 . 86 9CT * L339

L352 5.66 .15 1.22 .14 1.21 6.50 .13 1.22 .08 .68 90Q 0 L352

L356 5.51 .01 .07 .09 . 80 6.35 = .02 = .23 .12 1.00 90T 0 L356

L358 5.43 = .07 = .55 .09 . 81 6.27 = .10 = .94 .08 .66 90 T 0 L358

L376 5.64 .14 1.08 .20 1.73 6.53 .16 1.50 .14 1.21 9CT 0 L3 76

L37 8 5.47 = .03 = .27 .08 .70 6.20 = .17 = 1.61 .11 .90 90T 0 L378

L3 80 5.52 .02 .13 .06 .56 6.34 = .03 = .29 .13 1.15 90T 0 L3 8C L442 5.76 .26 2.05 .09 .78 6.57 .20 1.86 .10 . 82 90V 0 L442

L55 6 5.70 .20 1.56 .08 .71 6.40 .11 1.03 .05 .45 90T 0 L5 56 L557 5.43 = .07 = .58 .14 1 . 26 6.22 = .06 = . 57 .17 1 . 43 90T 0 L557

L5 75 5.41 = .10 = .76 .09 . SO 6.29 = .08 = .76 .14 1.23 90T 0 L575

L581 5.56 .06 .49 .07 .59 6.40 .03 .32 .13 1.09 9 OT 0 L581

L585 5.52 .02 .13 .06 .56 6.52 • 1 5 1.41 .04 .36 90T 0 L585

L587 5.43 = .07 = .58 t .13 i.li 6.20 = .09 = .85 .09 . 78 90T O L587

GB. MBAN * 5. 50 MILS GRAND MEAN • 6.37 MILS TEST DB TERMINATIONS • 10

SD MEANS • .13 MILS SD 6F MEANS - .11 MILS 53 LABS IN GRAND MEANS

AVERAGE SDR - .ii MILS AVERAGE SDR - .12 MILS

GR. MEAN •139.79 MICROMETER GRAND MEAN •161.02 MICROMETER

43
REPORT NO. 550 TAPPI COLLABORATIVE REFERENCE PROORAM SEPTEMBER 1 978 ANALYSIS T90=l TABLE 1 THICKNESS I CALIPEE ) . THOUSANDTHS OP AN INCH TAPPI STANDABD T41 1 09=76

LAB SAMPLE

B26

BAG

S3 GRAMS PER SQUARE METER

SAMPLB J65 PRINTING

93 GRAMS PBR SQUARE METER TEST D .- 10 CODB MEAN DBV N. DEV SDR R. SDR MEAN DEV N. DBV SDR R. SDR VAR F LAB

LIBS 5.26 -.25 -1.96 .07 .59 6.24 = .13 = 1.23 .10 . 86 90B LI 85 L203B 5.26 = .24 = 1.93 .25 2.18 6.13 = .24 = 2.27 .12 .99 90C L203B

L2420 S. 46 = .04 = .31 .06 .52 6.39 .02 .23 .09 .73 906 • L2420

L242P 6.46 = .05 = .37 .07 .62 6.31 = .06 = .59 .14 1.21 90P L242P

L24 3 5.34 = .16 = 1.29 .16 1.40 6.19 -.18 = 1.70 .08 .66 90S L243

L2S1 S. 26 = .25 = 1.96 .09 .76 6.17 = .20 = 1.85 .14 1.15 90 W L251 L344 5.76 .26 2.C3 .11 .95 6.58 .21 1.97 .12 1.05 90U » L344 L390 5.76 .26 2.03 .10 . 86 6.64 .27 2.54 .13 1.08 90C L390 L396M 5.63 .13 1.00 .09 .84 6.52 .15 1.41 .09 .78 90S L396M

L484 5.24 = .26 = 2.07 .08 .74 6.24 = .13 = 1.21 .09 .78 90E L4 84 L363 5.20 = .30 =2.40 .26 2.29 6.00 = .37 = 3.49 .00 .00 90U L5 63 L564 5.46 = .04 *=.34 .07 .62 6.37 = .00 =.ei .09 .81 90 Y L5 64 L576 5.44 = .06 = .50 .14 1.22 6.35 = .02 = .20 .09 .75 90C L576

L616 5.0© =.50 =3.99 .00 TOTAL NUMBER OP LABOBATOBIES REPOBTING - Best values: B28 5.50 + 0.21 mils

J65 6.36 + 0.16 mils

.00

67 6.00 = .37 = 3.49 .00 .00 90C L616

44
REPORT NO. 550 TAPPI COLLABORATIVB REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T90=l TABLE 2 THICKNBSS (CALIPER), THOOSANDTHS OF AN INCH TAPPI STANDARD T4I I 0S=76

LAB MEANS COORDINATES AVG

C0DB F B2e J6 5 MAJOR MINOR R. SDR VAR PROPERTY00 “TEST INSTRUMENT00 = CONDITIONS

L6S 6 5. CO 6.00 =.62 .03 .00 90C THICKNESS ( CALIPER ). CADY, HAND DRIVEN

L563 5.20 6.00 = .47 = .10 1.15 90 U THICKNESS ( CALIPER ), TMI , HAND DRI VBN

L4 84 5.24 6.24 = .26 .06 .76 90E THICKNESS ( CALIPBR ), SCH0PPBR, HAND DRIVBN

L309 0 5.2 5 6.17 = .32 .00 .73 90T THICKNESS ( CALIPER ). TMI , M0T0R DRIVEN

L2 5X 5.26 6.17 = .32 .00 .96 90 W THICKNESS ( CALIPER )

,

L W, M0T0R DRIVEN, 20 C, 65% RH

LI 85 5.26 6.24 = .27 .05 .72 90 B THICKNESS ( CALIPER ), AMTH0R, HAND DRIVBN

L2C3B 5.26 6.13 =. 34 = .03 1.59 90C THICKNESS ( CALIPER ), CADY, HAND DRIVEN

L320 0 5.28 6.25 = .25 .05 . 77 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN

L31 8 0 5.29 6.32 = .19 .10 1.51 90T THICKNESS ( CALIPER ), TMI , M0T0R DRIVBN

LI $ 1 0 5.30 6.25 = .23 .04 .62 90T THICKNBSS ( CALIPBR ), TMI, M0T0R DRIVEN

Li 9 OC 0 5.32 6.30 = .19 . 06 .86 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN

L24 3 5.34 6.19 = .24 = .04 1.03 90S THICKNESS ( CALIPER ), SCH0PPER

,

HAND DRIVBN

L339 * 5.34 6.40 = .10 .13 1.17 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVBN

L291 6 5.35 6.21 = .22 = .03 .71 90T THICKNESS ( CALIPER ), TMI , M0T0R DRIVBN

L3C 5 0 5.35 6.35 = .13 .06 .62 90 T THICKxNESS ( CALIPER ). TMI, M0T0P DRIVBN

Li 22 0 5.36 6.23 = .20 = .02 1.73 90V THICKNESS ( CALIPER >, TMI , M0T0R DRIVEN, DIGITIZED

LX 82 0 5.36 6.32 = .14 .05 .66 90L THICKNESS ( CALIPER ), L W, M0T0R DRIVEN

L57 5 0 5.41 6.29 = .13 = .00 1.01 90 T THICKNESS ( CALIPER ). TMI, M0T0F DRIVEN

LX 0 0 0 5.4i 6.27 = .13 = .02 1.03 90V THICKNESS ( CALIPER ), TMI , M0T0R DRIVEN, DIGITIZED

Li 83 0 5.42 6.23 = .15 = .06 1.24 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN

t-587 0 5.43 6.26 = .11 = . 02 .95 90T THICKNESS ( CALIPER ). TMI, M0T0R DRIVEN

L557 0 5.43 6.31 = .10 = .00 1.37 90T THICKNBSS ( CALIPER ), TMI, M0T0F DRIVEN

L3 58 0 5.43 6.27 = .12 = .03 .74 90T THICKNESS ( CALIPER ), TMI , M0T0F DRIVEN

L2C3A 0 5.43 6.30 = .09 = .01 1.48 90T THICKNESS ( CALIPER ). TMI, M0T0R DRIVEN

L576 5.44 6.35 = . 06 .02 .98 90C THICKNESS ( CALIPER ), CADY, HAND DRIVEN

L32 3 0 5.45 6.26 = .11 = .05 .73 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN

L2*2P 5.46 6.31 = .08 = .02 .92 90P THICKNESS ( CALIPER ), MESSMEK, M0T0R DRIVEN. IS0 R534

L33 i 0 5.46 6.37 = .04 .03 1.14 90T THICKNESS ( CALIPER ). TMI. M0T0R DRIVEN

L564 5.46 6.37 = .03 .03 .71 90 Y THICKNESS ( CALIPER ), VBAP, HAND DRIVEN

L2420 5.46 6.39 = .02 .04 .62 900 THICKNESS ( CALIPBR ). MESSME6, M0T0R DRIVEN, BS3983

L378 0 5.47 6.20 = .13 = .11 .80 90T thickness ( CALIPER >. TMI , M0T0F DRIVEN

L324 0 5.47 6.36 = .03 .01 1 .48 90T THICKNESS ( CALIPER ), TMI , M0T0F DRIVEN

LX 59 0 5.47 6.39 = .02 .03 1.04 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN

L203C 0 5.47 6.42 .00 .05 1.52 90T THICKNESS ( CALIPER ), TMI , M0T0R DRIVEN

L249 0 5.48 6.30 = .06 = .04 1.16 90T THICKNESS ( CALIPER >, TMI , M0T0R DRIVEN

L262 0 5.48 6.28 = .07 = .06 .48 90 T THICKNESS (CALIPER >, TMI, M0T0R DRIVEN

L328 0 5.50 6.31 = .04 = .05 1.05 90T THICKNBSS ( CALIPER ), TMI , M0T0R DRIVEN

LI 62 0 5 . 5i 6.34 = .01 = .02 1.02 90D THICKNESS ( CALIPER ), CADY, M0T0R DRIVEN

L260 0 5. 5 i 6.34 = .01 = .02 .53 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVBN

L356 0 5. 51 6.35 = . 01 = .02 .90 90T THICKNESS ( CALIPER >, TMI, M0T0R DRIVEN

L285 0 5.52 6.37 .01 = . 01 1.18 90T THICKNESS ( CALIPBR ). TMI, M0T0F DRIVEN

L585 0 5.52 6.52 .11 .11 .46 90T THICKNESS ( CALIPER ). TMI , M0T0F DRIVEN

L3 8C 0 5.52 6.34 = .0I = .03 . 86 90T THICKNESS ( CALIPER )

,

TMI , M0T0R DRIVEN

LI 74 0 5.53 6.29 = .03 = .08 1.84 9CT THICKNESS ( CALIPER ), TMI. M0T0R DRIVEN

L2 6i 0 5.54 6.41 .05 .01 1.04 90T THICKNESS ( CALIPER ), TMI , M0T0R DRIVEN

LI 66 0 5.54 6.40 .05 = . 00 . 63 90T THICKNESS ( CALIPER ), TMI, M0T0F DRIVEN

L212 0 5.55 6.45 .09 .03 .93 90 T THICKNESS ( CALIPBR >, TMI , M0T0R DRIVEN

L2 38A 0 5.55 6.47 .10 .05 .50 90T THICKNESS ( CALIPER ), TMI , M0T0R DRIVEN

LI 29 0 5.56 6.35 .03 = .05 .87 90T THICKNESS < CALIPER ). TMI , M0T0R DRIVBN

L58I 0 5.56 6.40 .07 = .01 . 84 9GT THICKNESS ( CALIPER ), TMI, M0T6R DRIVEN

LI 0 5 0 5.59 6.50 . 1 5 . 05 .78 90Q THICKNESS ( CALIPER ), EMVEC0, M0T0R DRIVEN

LI73B 0 5.61 6.52 .18 .05 1.53 90F THICKNESS ( CALIPER >, FEDERAL, M0T0R DRIVEN

Li 25 0 5.62 6.39 .11 = .05 1.50 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN

Li 58 0 5.63 6.53 .20 .04 .71 90T THICKNESS ( CALIPER ). TMI, M0T0R DRIVEN

L396M 5.63 6.52 .19 .04 .81 90S THICKNESS ( CALIPER ), SCH0PPEP, HAND DRIVEN

L259 0 5.63 6.36 .09 = .09 1.12 90 T thickness ( CALIPER )

,

TMI, M0T0F DRIVEN

L223 0 5.63 6.44 .14 = .03 . 80 90V THICKNESS ( CALIPER ). TMI, M0T0R DRIVEN, DIGITIZED

L2 28 0 5.64 6.49 .18 .01 1.29 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN

L376 0 5.64 6.53 .21 .04 1.47 90T THICKNESS ( CALIPER ), TMI, M0T0F DRIVEN

L2S 3 0 5.65 6. 56 .23 .06 .84 90T THICKNESS ( CALIPER ), TMI, M0T0R DRIVEN

L352 0 5.66 6.50 .20 .00 .94 900 THICKNESS ( CALIPER ), EMVEC0, M0T0R DRIVEN

L55 6 0 5.70 6.48 .22 = .04 .58 90T THICKNESS ( CALIPER ), TMI. M0T0R DRIVEN

L326 0 5.72 6.47 .24 = .06 1.10 90 T THICKNESS ( CALIPER ), TMI, M0T0F DRIVEN

L390 5.76 6.64 .37 .05 .97 90C THICKNESS ( CALIPER ), CADY, HAND DRIVEN

L34 4 5.76 6.58 .33 .00 1.00 90 U THICKNESS ( CALIPER ), TMI , HAND DRIVEN

45
REPORT NO. 5SG SEPTEMBER 1976

LA B CODB P L442 0

L1 1 1F 0

GMEANS

TAPPX COLLABORATIVE REFERENCE PROGRAM ANALYSIS T90~l TABLE 2 THICKNESS (CAEIPBR), THOU SAN DTHS OF AN INCH TAPPI STANDARD T4S S 6&=76 MEANS COORDINATES AVG

B26 J65 MAJOR MINOR R. SDR VAR PROPERTY®®® TEST INSTRUMENT®®®CONDI TIONS

5.76 6.57 .33 =.01 .80 90V THICKNESS (CALIPER). TMI , MOTOR DRIVEN, DIGITIZBD

S. 81 6.61 .40 =.01 1.52 90F THICKNESS (CALIPER). FEDBRAL, MOTOR DRIVEN

5.50 6.37 1.00 95% ELLIPSE: .40 .13 WITH GAMMA -38 DEGREES

46
MICROMETER

THICKNESS (CALIPER)

CSJ

c

QO

CD -

CDO

CDCDLOOM

LDSAMPLE 828 = 5.50 MILS SAMPLE J65

SAMPLE B28 = 139-8 MICROMETER SAMPLE J65

6-37 MILS

161-8 MICROMETER

MILS

i 1 r i

1 1 1 1 1

1 1 1

130 134 138 142 146 150

MICROMETER

47
RBPORT NO. 55G TAPPI COLLABORATIVE REFERENCE PROGRAM SEPTEMBER 1978 ANALYSIS T95=X TABLE 1 GRAMMAGE (MASS PER UNIT AREA)

TAPPI STANDARD T4X0 0S=68

LAB SAMPLE

D29

KRAFT

124 GRAMS PBR SQUARE METER

SAMPLE

D30 PRINTING92 GRAMS PER SQUARE METBR TEST D. - 10 CODE MEAN DEV N. DEV SDR B. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI OC 124.50 =.10 =.07 .53 .81 92.57 =.35 °.28 .65 1.07 95C 6 L100

Li 21 1 24. 65 .05 .03 .45 .68 92. 86 =.06 =.04 .56 .91 95B 0 LI 21 LI 62 125.21 .61 .42 1.79 2.73 94.00 1.08 .88 .00 .00 95K 0 LI 62

L21 2 122.01 =2.59 =1.78 .41 . 62 89.96 =2.96 =2.39 .59 . 96 95F 0 L213

L249 124.54 =.06 =.04 .66 1.00 93.47 .55 .45 1.15 1.87 951 e L249

L280 124.96 .36 .25 .67 1.02 92.82 =.10 =.08 .92 1.50 9 5T 0 L2 60 L305 127.03 2.43 1.67 .32 .49 94.59 1.67 1.35 .65 1.06 95T a L3C5

L33 9 127.12 2.52 1.73 .74 1.13 94.56 1.64 1.32 .30 .50 95T e L3 39 L34c 124.72 .13 .09 .82 1.26 92. 57 =.35 =.28 .96 1.57 95C 0 L342

L344 124.74 .14 .10 .22 .34 92.99 .08 .06 .48 .79 95T o L344

L3 + 8 7.45 =117.15 =80.30 .04 .06 5.59 =87.33 =70.50 .05 .08 95B * L378

L442 125.38 .78 .53 .39 .59 93.98 1.06 .86 .49 .81 95K 0 L4 42 L484 124.37 =.23 =.16 .63 . 96 92.59 =.33 =.26 .65 1.06 95H 0 L4 84 L557 124.56 =.04 =.02 .89 1.36 92.69 =.22 =.18 .70 1.14 95C 0 L557

L55 9 121 .70 =2.90 =1.99 .46 .71 90.88 =2.04 =1.64 .45 .74 9 5 K a L559

L564 123.50 =1.10 =.75 .85 1.30 93.20 .28 .23 .63 1.03 95E 0 LS 64 L59 7 25.70 =98.90 =67.79 .39 .59 19.20 =73.72 =59.51 .11 .17 95C * L597

GR. ME AN -1 24.60 G/SO. METER GRAND MEAN 92.92 G/SQ. METER TEST DETERMINATIONS • 1 i SD MEANS - 1.46 G/SQ. METER SD OF MEANS - 1 . 24 G/SQ. METER 15 LABS IN GRAND MEANS AVBRAGE SDR .65 O/SQ. METER TOTAL NUMBER OF LABORATORIES REPORTING - 17

Best values: D29 124.5 +2.6 grams per square meter

AVBRAGE SDR ,61 G/SO. METER

D30 92.9 + 2.0 grams per square meter

Data from the following laboratories appear to be off by a multiplicative factor: 378,597

REPORT NO. 55G TAPPI COLLABORATIVE RBFERFNCE PROGRAM ANALYSIS T95= 1 TABLE 2 GRAMMAGE (MASS PER UNIT AREA)

TAPPI STANDARD T41G 0S=68

SEPTEMBER 1978

LAB MEANS COORDINATES AVG

CODE F D2S D30 MAJOR MINOR R. SDR VAR PROPERTY000 TEST INSTRUMENT===CONDITIONS

L378 * 7.45 5.59 = 2 45, 40 8. 06 .07 95E BASIS WEIGHT ( GRAMMAGE GUILLOTINE TYPE CUTTER

L597 * 25.70 19.20 =123. 1

6.81 .38 95C BASIS WEIGHT ( GRAMMAGE CUTTING BOARD

L559 0 121.70 90.88 = 3.53 .30 .72 95 K BASIS WEIGHT ( GRAMMAGE WEIGHED AS RBCEIVED

L2i 3 0 522.01 89.96 = 3. 88 = .61 .79 95F bASIS WEIGHT ( GRAMMAGE F0UR<= SQUARE CUTTBR

L564 0 123.50 93.20 = . 66 .92 1.17 95E BASIS WEIGHT ( GRAMMAGE GUILLOTINE TYPE CUTTBR

L484 0 124.37 92.59 = .39 = .10 1.01 95 H BASIS WEIGHT ( GRAMMAGE SQUARE AND BLADE

LkOC o 124.50 92. 57 = .30 = .20 .94 95C BASI S WE IGHT ( GRAMMAGE CUTTING BOARD

L2 4 9 0 124.54 93.47 .31 .46 1.44 951 BASIS WEIGHT ( GRAMMAGE INGFNTO PAPER CUTTER

L557 0 224.56 92.69 = .17 = .15 1.25 95C BASIS WE IGHT ( GRAMMAGB >. CUTTING BOARD

LX 21 0 124.65 92. 86 .00 = .07 .80 95 B BASIS WB IGHT ( GRAMMAGE ). CONCORA CUTTER

L342 0 1 24.73 92.57 =.12 = .35 1.41 95C BASIS WEIGHT ( GRAMMAGE ). CUTTING BOARD

L344 0 224.74 92.99 .16 = .03 .57 95T BASIS WEIGHT ( GRAMMAGB >. TEMPLATB CUT

L280 0 1 24.96 92. 82 .21 = .30 1.26 95T BASIS WE IGHT ( GRAMMAGE >. TEMPLATE CUT

LI 62 0 125.21 94.00 1.16 .44 1.37 95K BASIS WEIGHT ( GRAMMAGE ). WEIGHED AS RBCEIVED

L442 0 125.38 93.98 1.28 .32 .70 95 K BASIS WEIGHT ( GRAMMAGB ). WEIGHED AS RECBIVED

L30 5 0 127.03 94.59 2.94 = . 27 .77 95 T BASIS WB IGHT ( GRAMMAGB >, TEMPLATE CUT

L33 9 0 127.12 94.56 2.99 = .36 .81 95T BASIS WEIGHT ( GRAMMAGE TEMPLATE CUT GMBANS

124.60 92.92 1.00

95* 1ELLIPSE : 5.35 1.16 WITH GAMMA - 39 DEGREES

48
G/SQ.

METER

GRAMMRGE (MASS PER UNIT AREA)

SAMPLE 029 = 124.6 G/SQ. METER SAMPLE 030 = 92.9 G/SQ. METER

oo

CD

e'- en

CD

CD

LD

CD

'3' CD

on

CD

OJCD

CD

O

CD

CDOO

0DOO

1

O

OO

o

UJ

_J

Q_

zzCE

CO

.X.# NOT IN GRAND MEANS

ANALYSIS T95-1

OO

O

C

o

o

SAMPLE D29

i

1 1 1 1 1 1 1 1 r

G/SQ. METER

49
REPORT NS. 55G TAPPI COLLABORATIVE RBFBRENCE PROGRAM SEPTEMBER 197a

SUMMARY TABLE

SAMPLE GRAND SD OF AVER RBPL LABS LABS RBPL TEST METHOD C6DB MEAN MEAN SDR CRP INCL PARTI

TAPPI REPEAT RBPROD

AIR RESISTANCE. GURLEY E73 16.15 1.04 1.39 10 52 56 10 1.22 2. 87 T40=S GURLEY UNITS J46 12.33 .81 .93 .82 2.24

AIR RESISTANCE, SHEFFIELD E73 172. 11. 12. 10 33 40 10 11. 30. T40 c 2 SHBFF. UNITS J46 226. 11 . 12. 10. 31. AIP RESISTANCE, GURLEY HG FLOTATION B73 1353. 199. 608. 10 12 S3 10 532. 553. T41=l SEC/10 CC B82 1635. 241 . 625. 548. 669. SMOOTHNESS, PARKER PRINTSURF JX2 4.97 .33 .18 10 8 8 10 .16 .92

T44= J MICRONS J49 6.00 .55 .09 .08 1.51 SMOOTHNESS, SHEFFIELD JX 2 141 .8 6.7 10.6 15 80 85 10 9.3 19.2

T45<=X SHEFF. UNITS J49 273.5 12.5 7.3 5.4 34. 8 SMOOTHNESS, BEKK JX 2 30.21 2.36 3.64 15 11 13 10 3.19 6.78

T4 5=2 BEKK SECONDS J49 <0 • .82 .57 • SC 2.29 SMOOTHNESS, EBNDTSBN JX 2 173. 9. 19. 10 8 9 10 16. 25.

T47«=£ ML/M IN J 49 483. 37. 36. 31. 102.

K A N INK ABSORPTION E50 63.4 5.2 .6 4 7 11 A .9 14.4

T5 6= X KAN UNITS H59 63.6 5.2 .4 .6 14.4

PH, COLD JX 4 6.95 .50 .08 5 6 7 2 .16 1.39

T57«= S PH UNITS J1 6 4.70 .32 .03 • C6 . 88

PH, HOT JX 4 7.737 .345 .110 5 5 5 2 .216 .972

T57 = 2 PH UNITS J1 8 4.513 .144 .033 .065 .402 OPACITY, BAL TYPE, B9* BACKING J57 92.71 .48 .35 10 66 79 5 .43 1.36

T60= X PERCENT K23 95.44 .34 .28 .35 .97 OPACITY, BAL TYPE, PAPER BACKING J57 93.07 .27 .51 10 5 5 5 .63 . 86

T60=» 2 PERCENT K23 95.72 .27 .36 .44 . 80 OPACITY. ELREPHO TYPE. PAPER BACKING J57 93. 6S .13 .22 1C 11 13 5 .28 .42

T60c 3 PERCBNT K23 96.37 .11 .19 .24 . 34 BLUE REFLBCTANCE , DIRBCTIONAL J35 83.91 .46 .13 8 21 41 6 .15 1.29

T65=* X PERCENT B78 96.11 .68 .14 .15 1.9C BLUE REFLECTANCE, DIFFUSE, WITH TRAP J35 84.51 .57 .09 8 16 17 6 .10 1.57 T65°2 PERCBNT B7 8 96.49 .85 .06 .07 2.37

BLUE REFLECTANCE, DIFPUSB, NO TRAP J35 84.2 7 1.70 .11 8 13 14 6 .12 4.71 T65° 3 PERCENT E7 8 95.50 1.50 .13 .15 4.17 SPECULAR GLOSS. 75 DBG REE J20 47.53 1.73 1.37 10 48 50 5 1.69 4. 94 T75=l GLOSS UNYTS B59 84.62 2.12 .41 .51 5. 89 THICKNESS (CALIPER) B2 6 5.50 .13 .11 10 53 67 10 .10 .35

T<?0°X MILS J 65 6.37 .11 .12 .10 .29 GRAMMAGE ( MASS PER UNIT AREA ) D29 124. 60 1.46 .65 10 15 17 3 1.05 4.14

T9 5 0 1 G/SQ, MB TER D30 92.92 1.24 .61 .98 3.53
NBS-114A (Rev. 9-78)

2.Gov't Accession No.

1—

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO.

TAPPI CRP 55G

3. Recipient* s Accession No.

4 . TITLE AND SUBTITLE

Technical Association of the Pulp and Paper Industry

COLLABORATIVE REFERENCE PROGRAM FOR PAPER

Report //55G

5. Publication Date January 10, 1979

$. Performing Organization Code

• if

7. AUTHOR(S)

R. G. Powell, J. Horlick

8. Performing Organ. Report No. NBSIR 79-1357

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, DC 20234

16. Project/Task/Worfc Unit No.

11. Contract/Grant No.

12. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS rsrreer, City, St^te, zip)

Collaborative Testing Services, Inc., 9241 Wood Glade Drive,

Great Falls, Virginia 22066; and Technical Association of

the Pulp and Paper Industry

13. Type of Report & Period Covered Final

14. Sponsoring Agency Code

15. SUPPLEMENTARY NOTES

I ] Document describes a computer program; SF-185, FIPS Software Summary, is attached.

18. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant bibliography or

literature survey, mention it here.)

Collaborative Reference Programs provide participating laboratories with the means for checking periodically the level and uniformity of their testing in

comparison with that of other participating laboratories. An important

by-product of the programs is the provision of realistic pictures of the state

of the testing art. This is one of the periodic reports showing averages for

each participant, within and between laboratory variability, and other information

for participants and standards committees.

17. KEY WORDS f® ix to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name

separated by semicolons)

Collaborative reference program; Laboratory evaluation; Paper; Precision:

Reference samples, Testing calibration

18. AVAILABILITY Unlimited

l~X| For Official Distribution. Do Not Release to NTIS

j 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

57

22. Price

USCOMM-DC
J i