COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

REPORT NO. 60G

100

U56

79-1806

1979

C.2

U.S. DEPARTMENT OF COMMERCE

National Bureau of Standards
NBS COLLABORATIVE REFERENCE PROGRAMS

TAPPI Paper and Board (6 times per year)

Bursting strength

Tearing strength

Tensile breaking strength

Elongation to break

Tensile energy absorption

Folding endurance

Stiffness

Air resistance

Grammage

Smoothness

Surface pick strength

K & N ink absorption

PH

Opacity

Blue reflectance (brightness)

Specular gloss, 75°

Thickness

Concora (flat crush)

Ring crush

FKBG-API Containerboard (48 times per year)

Mullen burst of linerboard

Concora test of medium

MCCA Color and Appearance (4 times per year)

Gloss at 60°

Color and color difference

CTS Rubber (4 times per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

CTS Thermal Insulation Materials (2 times per year)

19 test methods for thermal insulation materials covering:

thermal properties; strength properties; dimensions, stability,

and density properties; fire properties; and properties of

vapor barriers

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)

NBS Collaborative Reference Programs

AQ5 Technology Building

National Bureau of Standards

Washington, DC 20234

Rev. 3/79
TECHNICAL ASSOCIATION OF THE

PULP AND PAPER INDUSTRY

feb 2 7 1980

free

&.C-too ^ 54.

c- 3-

COLLABORATIVE REFERENCE PROGRAM

FOR PAPER

Report No. 60G

R. G. Powell

TAPPI-NBS Research Associate

Collaborative Testing Services, Inc.

J. Horlick

Office of Testing Laboratory Evaluation Technology

Office oTEng Sneering Standards

National Engineering Laboratory

NBSIR 79-1806 U. S. DEPARTMENT OF COMMERCE i - < National Bureau of Standards

INTRODUCTION

Reports 60S and 60G comprise the last set of reports

for the 78-79 program year. Participants in tests

which involve strength properties of paper will receive

only the G report; those in tests which measure other

properties will receive only the S report.

Notes and comments to individual laboratories and "Best

Values" applicable to a particular method are given

following Table 1 for each method0 See page 4 of this

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

not confuse these Best Values with provisional values

included with the samples to detect serious discrepancies

at the time of test.

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

or the reports in general, contact Robert G. Powell or

Jeffrey Horlick on 301/921-2946.

N3S-TAPPI Collaborative Reference Program

Office of Testing Laboratory Evaluation Technology

August 13, 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 MBS for analysis. The participant is also asked to report

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

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

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

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

recognized reference laboratories in this and other countries.

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

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

these values for each test method.

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

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

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

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

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

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

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

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

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

ii
TABLE f»F CONTENTS

Analyses In This Report

PAGE

i 11

iv

15

9

12

14

15

20

22

23

24

25

26

31

32

34

37

39

41

44

49

51

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 Bursting Strength - Up to 45 psl

10-

2 Bursting Strength - Up to 45 psi. Air Clamps

11-

1 Bursting Strength - Up to 100 psi

15-1 Tearing Strength - Deep Cutout

17-1 Tearing Strength - No Cutout

19-

1 Tensile Breaking Strength - Packaging Papers

20-

1 Tensile Breaking Strength - Printing Papers, CRE

§0-2 Tensile Breaking Strength - Printing Papers, Pendulum

25-

1 Tensile Energy Absorption - Packaging Papers

26-

1 Tensile Energy Absorption - Printing Papers

28-

1 Elongation to Break - Packaging Papers

29-

1 Elongation to Break - Printing Papers

30-

1 Folding Endurance, MIT type

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

35-

1 Stiffness, Gurley

36-

1 Stiffness, Taber

49-

1 Surface Pick Strength, IGT

50-

1 Surface Pick Strength, Wax

91-1 Concora (Flat Crush)

96-1 Ring Crush

lii
TABLE OF CONVERSION FACTORS TO METRIC (SI) UNITS

Physical

Quantity

To Convert

From To

Multiply

by

Bursting strength psi kPa 6.895

kg/cm2

kPa 98.07

bar kPa 100.00

Tearing strength g mN 9.807

Tensile strength lb/ in. kN/m .1751

lb/0.5 in. kN/m .3502

lb/15 mm kN/m .2965

kg/15 mm kN/m .6538

kg/ 2 5 mm kN/m .3923

kg/mm kN/m 9.807

Tensile energy absorption ft-lb/ft2 J/m2

14.59

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

kg-m/m

2 J/m2 9.807

Bending stiffness g* cm yN*m 98.07

Flat-crush strength (Concora) lb N 4.448

Ring-crush (TAPPI) lb N 4.448

(ISO) lb/6.00 in. kN/m 0.0292

Thickness mil 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 among

laboratory precision.

DEV - The deviation or difference of the laboratory

MEAN from the GRAND MEAN.

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

SD OF MEANS; an indication of the degree of

divergence of the laboratory MEAN from the

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

than -2 may indicate that the participant is

not following the procedure considered standard

for this analysis.

SDR - The standard deviation of repeated measurements;

that is, of individual test determinations about

their MEAN.

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

repeated measurements.

R. SDR - The relative standard deviation of repeated

measurements; that is, the ratio of the SDR to

the AVERAGE SDR; an indication of the ability

of a participant to repeat his measurements

relative to the average ability. The greater

the number of TEST DETERMINATIONS the closer

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

outside the limits given below, the participant

may not be following the procedure considered

standard for this analysis:

1
No. of test Lower limit Upper limit

Determinations for R. SDR for R. SDR

3

5

8

10

15

20

25

0.09

0.27

0.40

0.46

0.56

0.61

0.65

2.58

2.06

1.77

1.67

1.53

1.45

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.
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#the summary shows the following values for

each test method:

REPL CRP - The number of replicate test determinations used

in this Collaborative Reference Program.

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

Standard or assumed here if there is no TAPPI

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

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

Standard T1206 for definitions and computations.

REPEAT - TAPPI repeatability, a measure of the withinlaboratory precision of a test result.

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® 60G TAFPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T40-1 TABLE 1 AIR RESISTANCE, GURLEY UNITS (SECONDS/lOO CC

)

TAPFI 3'IANDARD T460 OS-75, AIR RESISTANCE OF PAPER

LAB SAMPLE

£95

BEAT SET OFFSET BOOK

91 GRAMS PER SQUARE METER

SAMPLE

A81 KRAFT ENVELOPE

90 GRAMS PER SQUARE METER

TEST D. 10 code MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR Ro SDR VAR F LAB

LI 00 49*6 1.2 .42 4.3 .96 22.2 .2 . 08 2.1 e 83 40D 6 L100

LI 06 44o 0 -4.4 -1.53 5.2 1.14 21.9 -« 1 -. 07 1.4 .57 40D 6 Li 06

LI 07 48*5 • 1 .02 5.2 1.15 21.3 -.7 -.38 2. 1 .83 40D a L i 07

LI 243*6 -4.8 -1.66 2.5 .54 19.6 -2.5 - 1.29 3. 1 1. 24 4 OD a L 1 2

Li 22 49*0 .6 .20 3.7 . 82 21.1 -1.0 -.51 2.7 1.07 40D a L 1 22

LI 23 48*8 .4 .12 4.3 .95 20.9 -1.2 -.61 3. 1 1.21 40D a Li 23 L124G 47*5 -.9 -.31 6.2 1.37 20.6 -1.2 -.62 3.5 1.38 40D a L124G

Li 25 48 0 5 . 1 .02 3.2 .72 22.2 • 1 .07 2.7 1.08 40D a Li 25

LI 28 48* 8 .4 .13 7.6 1.69 21.9 -. 1 -. 07 2.9 1. 15 40D 0 Li 28

LI 4 8 49*3 .9 .31 3.5 .78 26.0 4.0 2.08 2o 4 .95 40D a L 1 46

Li 53 46*3 -2. 1 -.74 7.2 1. 59 23.5 1.5 .79 1.5 .61 40D a L 153

Li 58 43*6 -4.8 -1.67 5.8 1.29 17.4 -4.6 -2.43 2.5 .97 40D a L 1 58

Li 5 9 50*2 1.7 .60 4.2 .92 22.3 .3 . 14 3. 1 1. 20 4 OD a Li 59

Li 63 50*2 1.8 .61 3.9 .86 23.4 1.4 .71 1.7 .68 40D a L 1 63

Li 66 51* i 2.7 .94 5.5 1.22 24.3 2.3 1.20 2.3 .90 40D a Li 66

Li 749*2 .7 .26 4.5 1.01 19.4 -2.6 -1.39 3. 8 1.51 40D a Li 74

Li 76 68*5 IV) o• 6.94 1 1.6 2. 56 28.5 6.5 3.41 3.6 1.41 4 OD u Li 76

Li 82G 48*2 -.2 -.08 4.6 1. 03 20.3 -1.6 -.93 2.6 1.01 40D a Li 82G

Li 83 46*3 -2. 1 -.74 5. 1 1.14 22.9 .9 .48 2.6 1.04 4 OD a L 1 83 L190C 44*5 -3,9 -1.36 5.4 1.19 22.8 .8 .40 2.4 .94 40 D a L190C

Li 9 OR 48*3 -. 1 -.05 5.2 1. 15 22.6 .6 .32 2.5 .97 40D a Li 90

L212 44*8 -3.6 -1.25 3.8 .85 18.5 -3.5 -1.82 4. 1 1.63 40D a L2 1

L219 46*4 -2.0 -.70 4.9 1. 08 20.5 -1.5 -o 80 1.6 .62 40D a L2 19 L223 49*0 .6 .19 5. 1 1.13 24.7 2.7 1.40 1.4 .56 40D a L223

L22 4 46*4 -2.0 -.70 4. 1 .91 22.2 .2 .09 • 3.3 1.31 4 OD a L224

L23 0G 50*8 2.4 .82 5.5 1.21 21.7 -.3 -. 17 2.5 .97 4 0D a L230G

L232 48*9 .4 .15 3. 1 .68 22.7 .7 .37 2.0 .81 40D a L232

L236 42*5 -5.9 § ro • o * 5.3 1. 17 21. 1 -.9 -.49 1.8 .72 40D a L236

L23 8A 49*7 1.3 .44 3. 1 .68 23.8 1.7 .91 2.5 .98 40D 0 L238A

L241 46*7 -1.8 -.61 4.3 .94 24.0 2.0 1. 03 4.4 1.75 4 OD a L24 i L242 48*6 .2 .06 3.7 .82 23.1 1. 1 .56 .8 .32 4 OD a L242

L25 4 48*5 . 1 .02 5.0 1.10 23.6 1.6 .81 2.5 .99 40D a L254

L259 51*2 2.8 .95 8.4 1.86 21.0 -1.0 -.51 3.3 1.31 40D a L259

L261 48*6 .2 .05 4.7 1. 04 22.6 .6 .30 1.9 .74 40D a L261 L262G 49*0 .6 .21 2.2 .43 23.4 1.4 .71 1.8 .72 4 OD a L262G

L26 5 49*4 1.0 .33 6. 1 1.35 21.3 -.7 -.37 1.6 .63 40D a L265

L274 47*1 -1.3 -.45 1.0 .22 21.1 -.9 -.49 • 4 . 15 40D a L274

L27 8 56*9 8.5 2.93 11.2 2.47 26.5 4.4 2.33 4.2 1.66 40D * L278 L2e5 53.5 5.1 1.75 2.9 .63 23. 1 1.1 .57 2. 1 .84 4 OD a L285 L308 50.9 2.5 .85 5.4 1.20 20.7 -1.3 -.71 2. 8 1. 10 40D a L30 8 L313 49*0 .6 .20 4.6 1.03 22.2 .2 .09 2.5 1.00 4 OD a L313

L320 45*2 -3.2 -1.12 3.3 .73 17.8 -4.2 -2.22 3.0 1. 20 4 OD a L3 20 L321 51*2 2.8 .95 5o 3 1.16 21.4 -.6 -.33 2.3 .91 40D a L3 21 L324 49*9 1.5 .51 2.0 .44 22.6 .6 .30 2.5 1.00 40D a L324

L326 53.1 4.7 1.61 5.6 1.24 23. 1 1. 1 . 58 2.9 1. IS 4 OD a L3 26 L328 47.5 -.9 -.32 4.2 .92 23.4 1.4 .73 1.9 .74 40D a L328

L339 43.6 -4.8 -1.66 5.3 1. 18 19.6 -2.4 -1.26 2.2 .89 40D a L339

L344 45. 8 -2.7 -.92 3.9 .87 20.2 -1.8 -.94 2.2 . 86 4 0D a L344 L376 50.4 2.0 .69 4.8 1.07 23.6 1.6 .84 2.2 . 86 40D a L376

L380 48.2 -.2 -.08 1.0 .23 23.6 1.8 .93 1.5 .58 40D 0 L380

L388 54.3 5.9 2.02 5.9 1.30 24.7 2.7 1.40 4.0 1.57 40D a L388

1394 51.1 2.7 .92 6.9 1.52 21.7 -.3 -.17 3.6 1.41 40D 0 L394 L396M 51.4 2.9 1.02 4.8 1. 06 21.9 -. 1 -. 05 3.7 1.44 40D 0 L396M

L484 41.2 -7.3 -2.51 3.5 .77 17.7 -4.3 -2.28 3. 1 1. 23 4 OH ft L4 84 L576 47.8 -.7 -.23 4.2 .93 24 o 1 2. 1 1.09 3.2 1.26 40D 0 L576 L585 49.6 1. 1 .39 4.9 1.09 20.9 -1. 1 —o 5 8 4.0 1. 58 4 OD a L5 85 L597 49.6 1.2 .40 3.6 .80 21.7 -.3 -. 17 3.3 1.30 4 OD o L597

L604 45.4 -3.0 -1.05 5.1 1.12 21.9 -. 1 -.04 2.3 .90 40D 0 L604

L6 i 6 52.0 3.6 1.23 1.9 .43 23.1 1. 1 .56 1.2 .47 40D a L616

L65 i 46.6 -1.8 -.63 4.7 1.04 20.8 -1.2 -. 64 3.6 1.40 40D a L6 51 L676 50. 1 1.6 .56 4.9 1.07 25.4 3.4 1.78 1.7 .67 4 OD a L676

L697 47. 1 -1.3 -.46 4. 1 .90 19.5 -2.5 - 1.33 3.9 1.53 40D 0 L697

GR* MEAN - 48.

GURLEY UNITS GRAND MEAN - 22.

0

GURLEY UNITS TEST DETERMINATIONS - 10 SD MEANS - 2.9 GURLEY UNITS SD 6F MEANS • 1.9 GURLEY UNITS 61 LABS IN GRAND MEANS AVERAGE SDR - 4,5 GURLEY UNITS AVERAGE SDR 2,5 GURLEY UNITS 5
SEP6BT NO. 600 TAPPS COLLABORATIVE EEFEEENCE PROGRAM JUNE 1979 ANALYSIS 140-1 TABLE 1 AIR RESISTANCE, CURLEY UNITS (SEC6NDS/100 CC>

IAPPI STANDARD T460 OS-75, AIR RESISTANCE OF PAPER

LAB SAMPLE BEAT SET OFFSET BOOK

B95 91 CRAMS PER SQUARE METER

SAMPLE

A81 KRAFT ENVELOPE

90 CRAMS PER SQUARE METER

TEST D. - 10 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N*JDEV SDR R. SDR VAR F LAB

Lt 1 5 49.6 1.4 .47 3®S .85 21.3 -.7 -•36 3.8 1.48 40U LI 15 L29 S 48.2 -.2 -.08 5.4 1.19 22.6 .6 • 3© 4.4 1.73 40U L291 L564 7.6 -40.9 -14*1® *6 .14 TOTAL NUMBER OF LABORATORIES REPORTING * 65

Best values: B95 48.5 + 4.9 Gurley units

A81 22.0 + 2.7 Gurley units

4.0 -18.0 -9«44 .4 . 16 40K L564

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

6
REPORT NO. 60G TAPP I COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T40-1 TABLE 2 AIR RESISTANCE. GURLEY UNITS <SECONDS/100 CO

TAPPI STANDARD T460 OS-75. AIR RESISTANCE OF PAPER

LAB MEANS COORDINATES AVG

CODE F B95 A81 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT- --CONDITIONS

L564 7.6 4.0 -44.6 2.2 .15 40 K AIR RESISTANCE. BEKK

L484 41.2 17.7 -8.5 -.6 1.00 40U AIR RESISTANCE. REGMED-TYPE GURLEY DENSOMETER -OIL FLOTATION

L236 e 42.5 21. 1 -5.7 1.8 .95 40D AIR RESISTANCE. GURLEY DENS0METER - eiL FLOTATION

LI 5 8 0 43.6 17.4 -6.4 -2.0 1.13 40 D AIR RESISTANCE. GURLEY DENS0METER « OIL FLOTATION

L339 0 43.6 19.6 -5.4 .0 1.03 40D AIR RESISTANCE. GURLEY DENS0METER - OIL FLOTATION

LX21 0 43.6 19.6 -5.4 -.0 .89 40D AIR RESISTANCE. GURLEY DENS0METER • OIL FLOTATION

Li 06 0 440 0 21.9 -4. 0 1.9 .86 40D AIR RESISTANCE. GURLEY DENSOMETER - oil FLOTATION

L19 0C 0 44.5 22. 8 -3.2 2.5 1.06 40D AIR RESISTANCE. GURLEY DENSOMETER - OIL FLOTATION

L2 1 2 6 44.6 18.5 -4.8 -1.5 1.24 40D AIR RESISTANCE, GURLEY DENSOMETER - 0IL FLOTATION

L320 e 45.2 17.8 -4.8 -2.3 .96 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L604 0 45.4 21.9 -2.7 1.3 1.01 40D AIR RESISTANCE, GURLEY DENSOMETER • oil FLOTATION

L34 4 e 45.8 20.2 -3.2 -.4 .86 40D AIR RESISTANCE, GURLEY DENSOMETER - oil FLOTATION

Li 53 0 46.3 23.5 -1.2 2. 3 1.10 40D AIR RESISTANCE. GURLEY DENSOMETER oil FLOTATION

Li 83 0 46.3 22.9 -1.5 1. 8 1.09 40D AIR RESISTANCE. GURLEY DENSOMETER - oil FLOTATION

L224 0 46.4 22. 2 -1.7 1. 1 1. 1 1 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L219 0 46.4 20.5 -2.5 -.5 .85 40D AIR RESISTANCE, GURLEY DENSOMETER - eiL FLOTATION

L651 0 46.6 20.8 -2.2 -.3 1.22 40D AIR RESISTANCE, GURLEY DENSOMETER - eiL FLOTATION

L240 46.7 24.0 -.7 2.6 1.34 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L697 0 47. 1 19.5 -2.3 -1.7 1.22 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L27 4 0 47. 1 21. 1 -1.6 -.2 .18 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L328 0 47.5 23.4 -.2 1.7 .83 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L124G 0 47.5 20.8 -1.3 -.7 1.38 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L576 0 47.8 24. 1 .3 2. 1 1.09 40D AIR RESISTANCE, GURLEY DENSOMETER OIL FLOTATION

L291 4 8. 2 22.6 .0 .6 1.46 40U AIR RESISTANCE, SHEFFIELD IN GURLEY UNITS

L3 8 0 0 48. 2 23.8 .6 1.7 .40 40D AIR RESISTANCE, GURLEY DENSOMETER - 0IL FLOTATION

L182G 0 48.2 20.3 -1.0 -1.5 1.02 40D AIR RESISTANCE, GURLEY DENSOMETER - OIL FLOTATION

L190R 0 48.3 22.6 .2 .6 1.06 40D AIR RESISTANCE, GURLEY DENSOMETER - eiL FLOTATION

LI 2 5 0 48.5 22. 2 . 1 . 1 .90 40D AIR RESISTANCE, GURLEY DENSOMETER - oil FLOTATION

L10 7 0 48.5 21.3 -.3 -.7 .99 40D AIR RESISTANCE. GURLEY DENSOMETER - OIL FLOTATION

L254 0 48.5 23.6 .a 1.4 1 o 04 40D AIR RESISTANCE, GURLEY DENSOMETER ** eiL FLOTATION

L261 0 48.6 22.6 .4 .4 .89 40D AIR RESISTANCE, GURLEY DENSOMETER oil FLOTATION

L24 2 0 48.6 23. 1 .6 .9 .57 4 0D AIR RESISTANCE, GURLEY DENSOMETER - oil FLOTATION

Li 23 0 48.8 20.9 -.2 -1.2 1.08 40D AIR RESISTANCE, GURLEY DENSOMETER - eiL FLOTATION

LI 2 8 0 48.8 21.9 .3 -.3 1.42 40D AIR RESISTANCE, GURLEY DENSOMETER 0IL FLOTATION

L232 0 48.9 22.7 .7 .4 .74 40D AIR RESISTANCE, GURLEY DENSOMETER - oil FLOTATION

L2 23 0 49.0 24.7 1.7 2. 1 .84 40D AIR RESISTANCE, GURLEY DENSOMETER - 0IL FLOTATION

LI 22 0 49.0 21. 1 . 1 -1. 1 .95 40D AIR RESISTANCE, GURLEY DENSOMETER oil FLOTATION

L313 0 49.0 22. 2 .6 -. 1 1.01 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L262G 0 49.0 23.4 1. 1 .9 .60 40 D AIR RESISTANCE, GURLEY DENSOMETER - eiL FLOTATION

LI 74 0 49.2 19.4 -.5 -2.7 1.26 40D AIR RESISTANCE, GURLEY DENSOMETER - oil FLOTATION

L148 0 49.3 26.0 2.6 3. 1 .87 40D AIR RESISTANCE, GURLEY DENSOMETER - oil FLOTATION

L265 0 49.4 21.3 .5 -1. 1 .99 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L585 0 49.6 20.9 .5 -1.5 1.33 40D AIR RESISTANCE, GURLEY DENSOMETER - eiL FLOTATION

L597 0 49.6 21.7 .9 -.8 1.05 40D AIR RESISTANCE, GURLEY DENSOMETER - eiL FLOTATION

L100 0 49.6 22.2 1.2 -.4 .39 40D AIR RESISTANCE, GURLEY DENSOMETER - oil FLOTATION

L23 8A 0 49.7 23.8 1.9 1.0 .83 40 D AIR RESISTANCE, GURLEY DENSOMETER - eiL FLOTATION

LI 15 49.8 21.3 .9 -1.3 1.17 40 U AIR RESISTANCE, SHEFFIELD IN GURLEY UNITS

L324 0 49.9 22.6 1.6 -.2 .72 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L676 0 50. 1 25.4 3.0 2.3 .87 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

LI 59 0 50.2 22.3 1.7 -.5 1.06 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

LI 63 0 50.2 23.4 2.2 .4 .77 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L376 0 50.4 23.6 2.5 . 5 .96 40D AIR RESISTANCE. GURLEY DENSOMETER - GIL FLOTATION

L2 30G 0 50.8 21.7 2.0 -1.4 1.09 40 D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L30 8 0 50.9 20.7 1.6 -2.3 1.15 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L394 0 51 0 1 21.7 2.2 -1.5 1.47 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

Li 66 0 51.1 24.3 3.4 .8 1.06 40 D AIR RESISTANCE, GURLEY DENSOMETER • GIL FLOTATION

L321 0 51.2 21.4 2.2 -1.8 1.04 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L259 0 51.2 21.0 2.0 -2. 1 1. 59 4 0D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L396M 0 5 1.4 21.9 2.6 -1.4 1.25 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L61 6 0 52.0 23. 1 3.7 -.6 .45 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L326 0 53. 1 23. 1 4.7 -1. 1 1.20 40D AIR RESISTANCE, GURLEY DENSOMETER • GIL FLOTATION

L285 0 53.5 23. 1 5.0 -1.3 .74 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L388 0 54.3 24.7 6.4 -.2 1.43 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

L27 8 « 56.9 26.5 9.6 • 2 2.07 40D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

LI 76 # 68.5 28.5 20.9 -3.2 1.99 40 D AIR RESISTANCE, GURLEY DENSOMETER - GIL FLOTATION

GMEANS

48. 4 22.0 1.00 95% ELLIPSE: 8.0 3,6 WITH GAMMA - 26 DEGREES 7
GURLEY

UNITS

AIR RESISTANCE. GURLEY

38 40 42 44 46 48 50 52 54 56 58 60

GURLEY UNITS

8
REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 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

SAMPLE BEAT SET OFFSET BOOK SAMPLE KRAFT ENVELOPE TEST D.' 10 LAB B95 91 GRAMS PER SQUARE METER A6 1 90 GRAMS PER SQUARE METER

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

LI 14 76,9 4.5 1.32 6. 0 .97 126.0 -5. 1 -.64 10.5 .80 4 OS 0 LI 14 LI 21 73,8 1.4 .42 7.2 1. 16 120.9 -10.2 -1.27 10.0 .77 40S 0 L 1 21

LI 24S 72,4 .0 .01 5. 1 .82 120.6 -10.5 -1.31 6.3 .48 40S e L124S

L132 70,7 -1.7 -.48 7.4 1. 19 138.0 6.9 . 86 17. 5 1.34 4 OS 0 L 1 32

LI 48 79,5 7. 1 2.07 7.2 1. 17 138.0 6.9 .86 15.0 1. 14 40S 0 L 1 48

LI 50 73,5 1. 1 .33 7.0 1. 13 138.6 7.5 .93 12. 4 .95 40S 0 LI 50

Li 57 69,9 -2.5 -.71 8.3 1.34 132.9 1.8 .22 10. 1 .77 40S 6 L 1 57

LI 58 70,0 -2.4 -.68 4. 1 .66 125.0 -6. 1 -.76 13.3 1.02 40S 6 LI 58 L173B 76,0 3.6 1.06 8. 1 1.30 141.5 10.4 1.29 18.7 1.43 40S 6 L173B

L190C 79,0 6.6 1.92 5.2 .63 142.5 11.4 1.42 20.6 1.57 40S 0 L190C

L213 72.0 -.4 -.10 5.4 .87 119.4 -11.7 -1.46 8.8 .67 40S 0 L213 L223 65.5 -6.9 -1.98 5.7 .91 129.9 -1.2 -.15 18. 2 1.39 4 OS 0 L2 23 L228 72.4 .0 .01 1.3 .20 172.2 41. 1 S. 12 18.4 1.40 40S # L228 L230S 66.2 -6.2 -1.78 7.0 1. 12 1 19.9 -1 1.2 -1.40 13. 1 1.00 40S 0 L230S

L233 69.6 -2. 8 -.80 9.1 1.47 134.5 3.4 .42 14. 1 1.07 40S 6 L233

L24 1 90.0 17.6 5.11 3.3 .54 147.5 16.4 2.04 11.8 .90 40 S * L241 L249 70.9 -1.5 -.42 7.0 1. 13 126.2 -4.9 -.61 16.2 1.24 40S 0 L249

L255 96.5 24. 1 6.99 5.3 .85 142.7 11.6 1.44 11.0 .84 4 OS H L255

L257A 74.9 2.5 .74 4.3 .70 127.4 -3.7 -o 46 11.3 o 86 40S 0 L257A

L257B 74.0 1.6 .48 5.0 .80 136.9 5.8 .72 14.7 1. 12 40S 0 L2 57B L257C 75.5 3. 1 .91 9.0 1.45 134.8 3.7 o 46 1

0 0 1.07 40S 0 L257C

L26 0 72.4 .0 .01 5.0 .80 128.4 -2.7 -.34 7.7 .59 40S 0 L260

L26 2S 71.8 -.6 -.16 3.9 .62 136.6 5.5 .68 6.9 .53 40S 0 L262S

L268 74.0 1.6 .48 9. 1 1.47 140.9 9.8 1.22 18.0 1.37 40S 0 L288 L305 75.1 2.7 .80 5.0 • 80 126.7 -4.4 -.55 7.9 .60 40S 0 L305 L318 66.8 -5.6 -1.61 9. 1 1.46 120.4 -10.7 - 1.34 8. 2 .63 40S 0 L318

L352 73. 1 .7 .22 6.5 1.05 136.3 5.2 .65 15.9 1.22 40S 0 L352

L354 76.4 4.0 1.17 7.9 1.27 145. 1 14.0 1.74 22.0 1.68 40S 0 L354

L36 0 75.0 2.6 .77 5. 1 .81 130.9 -.2 -o 03 13. 1 1.00 40S 0 L360 L366 66.3 -6. 1 -1.75 7.5 1. 20 117.9 -13.2 -1.65 10. 1 .77 40S 0 L366

L372 74. 8 2.4 .71 4. 1 .66 127.2 -3.9 -.49 16.6 1.27 4 OS 0 L372

L390 74.5 2. 1 .62 3.7 .59 130.0 -1. 1 -. 14 14. 1 1.08 40S 0 L390

L56 2 71.2 -1.2 -.33 7.3 1. 17 146.9 15.8 1.97 17. 1 1.31 40S 0 L562

L575 69.5 -2.9 -.83 4.0 .64 123.8 -7.3 -.91 12. 1 .93 40S 0 L575

L585 71.0 -1.4 -.39 3.9 .63 124.0 -7.1 -. 89 11.7 .90 40S 0 L585

L597 71.0 -1.4 -.39 5. 8 .93 140.4 9.3 1. 16 15.3 1. 17 40S 0 L597

L600 72. 1 -.3 -.07 6.6 1.06 127.9 -3.2 -.40 6.9 .53 40S 0 L600 L626 65.4 -7.0 -2.01 4.7 .75 122.8 -8.3 -1.04 11.9 .91 40S 0 L626

L684 73.7 1.3 .39 10.2 1.65 143.3 12.2 1.52 16.0 1.22 40S 0 L684 L687 70.9 -1.5 -.42 4.3 .68 129.0 -2. 1 -.26 12.3 .94 40S 0 L687

L69 8 74. 1 1.7 .51 4.6 .74 131.0 -. 1 -.01 9.3 .71 40S 0 L698

GR* MEAN • 72.4 SHEFF. UNITS GRAND MEAN - 131.1 SHEFF. UNITS TEST DETERMINATIONS - 10 SD MEANS 3.5 SHEFF. UNITS SD OF MEANS - 8.0 SHEFF. UNITS 38 LABS IN GRAND MEANS

AVERAGE SDR “ 6.2 SHEFF. UNITS AVERAGE SDR - 13* 1 SHEFF* UNITS L182B 255.5 183. 1 53.00 26*5 4*26 515.0 383.9 47.82 89* i 6. 80 40B L182B

L31 2 75.3 2.9 .85 6*3 1*01 127.4 -3.7 -.46 10*7 .82 40T L312

L484 263.0 190.6 55. 17 270 9 4* 49 510.0 378.9 47.20 57*0 4. 35 4 OB L4 84 TOTAL NUMBER OF LABORATORIES REPORTING - 44

Best values: B95 72+6 Sheffield units A81 130 + 12 Sheffield units

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

241, 255.

9
REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T40-2 TABLE 2 AIR RESISTANCE. SHEFFIELD UNITS CCC/MIN) FOR 0.442 SO. IN <3/4 IN. DIA ) ORIFICE

SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG CODE F B95 A81 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT— -CONDITIONS

L626 0 6 5.4 122.8 -9.7 4.8 .83 40S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L223 0 65.5 129.9 -2.8 6.4 1.15 40S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMETER ORIFICE

)

L230S 0 66.2 1 19.9 -12.3 3.4 1.06 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L366 0 66.3 1 17.9 -14.3 2,8 .98 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L31 e 0 66.8 120.4 -11.7 2.9 1. 04 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE) L575 0 69.5 123.8 -7.8 1. 1 .78 40S AIR RESISTANCE, SHEFFI ELD <3/4 INCH DIAMETER ORIFICE)

L2 33 0 69.6 134.5 2.7 3.5 1.27 40S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

LI 57 0 69.9 132.9 1.2 2.8 1.06 40S AIR RESISTANCE, SHEFFI ELD < 3/4 INCH DIAMETER ORIFICE)

LI 58 0 70,0 125.0 -6.5 .9 .84 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L132 e 7C.7 138.0 6.3 3.2 1.26 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L68Y 0 70.9 129.0 -2.4 .9 .81 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L2 49 0 70.9 126.2 -5. 1 .3 1. 18 40S AIR RESISTANCE, SHEFFIELD ( 3/4 INCH DIAMETER ORIFICE

)

L597 0 71.0 140.4 8.7 3.5 1.05 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L565 0 71.0 124.0 -7.2 -.3 .76 40S .AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE

)

L562 0 71.2 146.9 15.1 4.0 1.24 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE

)

L262S o 71.8 136.6 5.2 1.8 .58 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L2I3 0 72.0 119.4 -11.5 -2.4 .77 40S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMETER ORIFICE

)

LOO 0 0 72. 1 127.9 -3.2 -.5 .79 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE

)

L22 8 * 72.4 172.2 40. 0 9.4 .80 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L124S 0 72.4 120.6 -10.2 -2.5 .65 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L26 0 0 72.4 128.4 -2.6 -.7 .69 40S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L352 0 73. 1 136.3 5.2 .5 1.13 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE ) LI 50 0 73.5 138.6 7.5 .6 1.04 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L684 0 73.7 143.3 12.2 1.5 1.43 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE

)

LI 21 0 73.8 120.9 -9.6 -3.8 .96 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE

)

L288 0 74.0 140.9 9.9 .7 1.42 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L257B 0 74.0 136.9 6.0 -.3 .96 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L69 8 0 74. 1 131.0 .3 -1.7 .72 40S AIR RESISTANCE. SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L390 0 74.5 130. 0 -.6 -2.3 .84 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L372 0 74.8 127.2 -3.2 -3.3 .96 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L257A 0 74.9 127.4 -3.0 -3.3 .78 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L36 0 0 75.0 130.9 .4 -2.6 .91 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L30 5 0 75. 1 126.7 -3.7 -3.7 .70 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETBR ORIFICE)

L312 75.3 127.4 -2.9 -3.7 .91 40 T AIR RESISTANCE, SHEFFIELD (3 INCH DIAMETER ORIFICE)

L257C 0 75.5 134.8 4.3 -2.2 1.26 40S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L173B o 76.0 141.5 10.9 -1.2 1.37 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L354 0 76.4 145. 1 14.5 -.7 1.47 40S AIR RESISTANCE, SHEFFIELD <3/4 INCH DIAMETER ORIFICE

)

LI 14 0 76.9 126.0 -3.9 -5.6 .89 40S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L190C 0 79.0 142.5 12.6 -3.8 1.20 40 S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

LI 48 0 79.5 138.0 8.3 -5.4 1. 15 40S AIR RESISTANCE, SHEFFIELD < 3/4 INCH DIAMETER ORIFICE)

L241 « 90.0 147.5 20.0 -13.4 .72 40S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMETER ORIFICE)

L25 5 * 96.5 142.7 16.8 -20.8 .35 40S AIR RESISTANCE. SHEFFIELD <3/4 INCH DIAMETBR ORIFICE)

L182B • 255.5 515.0 415.8 -89.6 5.53 4 OB AIR RESISTANCE, BENDTSEN. WG 150 L484 263.0 510.0 412.7 -98.0 4.42 40B AIR RESISTANCE, BENDTSEN, WG 150 GMEANS: 72.4 131.1 1.00 95* ELLIPSE: 21.3 7,7 WITH GAMMA - 76 DEGREES

10
SHEFF.

UNITS

105

1

10

1

15

120

125

130

135

140

145

150

155

AIR RES I STANCE * SHEFFIELD

SAMPLE B95 = 72. SHEFF. UNITS SAMPLE A81 = 131. SHEFF. UNITS

SHEFF. UNITS

li
REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T4S-1 TABLE 1 AIR RESISTANCE. HIGH RANGE. GURLEY MERCURY FLOTATION

DIRECT READING, SEC/10 CC, MERCURY DENSITY

SAMPLE RELEASE BASE SAMPLE RELEASE BASE M.F. TEST D. - 10 LAB B73 116 GRAMS PER SQUARE METER D06 112 GRAMS PER SQUARE METER

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

LI 22 1533. 314. 1.45 786. 1.62 175. 11. .68 49. 2.34 4 1G e L 122

LI 2 8 1034. *185. -.85 328. .68 & 66 © 2. . 13 16. . 85 4 1G 0 LI 28 L134 1318. 99. . 46 430. .89 172© 8. .49 17. .83 4 1G 6 LI 34 L166M 1456. 237. 1.09 6 06. 1.25 171. 7. .43 18. .88 4 1G 6 L166M

Li 9 5 1121. -97. -.45 4 03. .83 &6U “3. -. 19 11. .52 4 1G 6 L 1 95 L224 26322. 25104. 115.80 13056. 26.91 4 A 15® 3951. 249. 14 300. 14.20 41G # L224 L259 25557. 24338. 1 12.27 7703. 15.88 3723® 3559. 224.42 204. 9.68 4 1G ft L259

L312 801. -417. -1.93 226. .47 132® -32. -2. 03 7. .33 41G 0 L312

L358 1282. 64. .29 548. 1.13 i 68© 4. .26 15. .71 4 1G 0 L35 8 L557 989. -229. -1.06 256. .53 168© 4. .27 17. .82 4 1

G

0 L557 L558 1191. -28. -. 13 651. 1.34 140© -23. -1.48 10. .45 4 1

G

0 L558

L576 1325. 106. .49 475. .98 189* 25. 1.61 58. 2.74 41G 0 L576 L697 1356. 137. .63 630. 1.30 161© -3. -.17 11. .53 4 1G 0 L6 97

GR® MEAN - 1219. SEC/10 CC GRAND MEAN • 164© SEC/ 10 CC TEST DETERMINATIONS - 10 SO MEANS - 217. SEC/10 CC SD OF MEANS - 16® SEC/10 CC 11 LABS IN GRANDi MEANS

AVERAGE SDR “ 485. SEC/10 CC AVERAGE SDR 21. SEC/ 10 CC TOTAL NUMBER OF LABORATORIES REPORTING • 13

Best values: B73 1300 seconds per lOcc, D06 170 mercury density,

(direct reading)

Data from the following laboratories appear to be

off by a multiplicative factor: 224, 259.

The values reported here are the time In seconds required for the displacement of

10 ml of air through an area of 1.0 sq,

in® of the specimen# The values are not converted to 100ml of air nor to oil density*

REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T41-1 TABLE 2 AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION DIRECT READING. SEC/10 CC, MERCURY DENSITY

LAB MEANS COORDINATES AVG CODE F B73 D06 MAJOR MINOR B® SDR VAR PROPERTY- --TEST INSTRUMENT- --CONDITIONS

L312 0 eou 132® -419. -13. o 40 4 1 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L557 0 989® 168® -229. 15. • 67 4 1

G

AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

LI 2 8 0 1034. 166® -184. 11. • 76 4 1 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

LI 95 a 1 121* 161* -97. 1. o 68 4 1

G

AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L55 8 e 1191® 14 0® -29. -22. .90 4 1 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L358 0 1282® 168® 64. 1. © 92 4 1

G

AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

LI 34 0 1318® 172* 99. 3. ©86 4 1 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L576 0 1325® 189® 1 07. 21. 1 © 86 41G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L69 7 0 1356® 161® 137. -9. • 91 4 1 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L166M 0 1456® 171® 237. -4. 1 • 06 4 1 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

LI 22 0 1533® 175® 314. -4. 1 o 90 4 1

G

AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L259 ft 25557. 3723. 24475. 2445. 12.78 41

G

AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

L22 4 » 26322® 4115® 25258. 2802. 20. 56 4 1 G AIR RESISTANCE, HIGH RANGE, GURLEY MERCURY FLOTATION

GMEANS: 1219® 164® 1.00 95% ELLIPSE: 667. 38. WITH GAMMA ° 2 DEGREES

12
sfp

/

i

n

rr

200

400

600

800

1200

AIR RES I STANCE , GURLEY HG EL0TAT I 0N

SAMPLE 873 = 1219. SEC/10 CC SAMPLE 006 = 164. SEC/10 CC

03 +.X.# NOT IN GRAND MEANS

O

Q ANALYSIS T41-1

LU

_)

Q_

crco

o

© 0

©

j© ©.

SAMPLE B73

400 600 800 1000 1400

SEC/10 CC

1800

13
REPORT NO. 60G TAP PI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T44-1 TABLE 1 SMOOTHNESS. PARKER PRINTSURF

SAMPLE PRINTING SAMPLE PRINTING TEST D. * 10 LAB J50 94 GRAMS PER SQUARE METER J74 76 GRAMS PER SQUARE METER

CODE MEAN DEV N0 DEV SDR R. SDS MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI 22 6.95 .87 1.51 .16 1.45 5© 09 .80 2.09 . 15 1.25 44P 0 L 1 22

LI 36 5.88 -.20 -« 35 .08 o 72 3© 94 -.35 -.92 .07 .58 44P 0 LI 36

LI 82 5.92 16 -.28 .05 .49 4. 40 . 1 1 .29 .10 .80 44P 0 L 1 82

LI 83 5.79 -.29 -.51 .07 .68 4.35 .06 .15 .08 .71 44P 0 LI 83 L223 8.25 2. 17 3.77 .14 1.30 5.94 1.65 4.30 .10 .83 44P V L223

L28 8 6.96 .83 1.52 .08 © 77 4® 29 -.00 -.01 . 14 1.21 44P 0 L288

L317 5.93 -.IS -.26 .22 1.99 4© 17 -.12 32 .14 1. 18 44P 0 L317

L4 84 5.92 -.16 -.28 .13 1.21 4.28 -.01 -® 03 .15 1.29 44P 0 L4 84 L58 8 5.31 -.77 -1.34 .07 .68 3.81 -.48 -1.26 .12 1.00 44P 0 L588

GR. MEAN • 6.08 MICRONS GRAND MEAN • 4© 29 MICRONS TEST DETERMINATIONS - 1 ( SD MEANS - .58 MICRONS SD OF MEANS • ©38 MICRONS 8 LABS IN GRAND1 MEANS

AVERAGE SDH • .11 MICRONS AVERAGE SDS - . 12 MICRONS

TOTAL NUMBER OF LABORATORIES EBPOBTING • 9 Best values: J50 6.0 microns

J74 4.3 microns

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

REPORT NO. 60G TAPFI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T44-1 TABLE 2 SMOOTHNESS. PARKER PRINTSURF

LAB MEANS €60 RD I NATES AVG C0DE F J50 J74 MAJOR MINOR S. SDR VAR PROPERTY— -TEST INSTRUMENT---C0NDITI6NS

L588 0 5.31 3.81 -.91 -.03 © 84 44 P SMOOTHNESS, PARKER PRINTSURF

LI 83 0 5.79 4.35 -.22 .20 ©69 44P SMOOTHNESS, PARKER PRINTSURF

LI 36 0 5.88 3.94 -.35 -.20 © 65 44P SMOOTHNESS, PARKER PRINTSURF

L484 0 5.92 4.28 15 .07 1.25 44P SMOOTHNESS, PARKER PRINTSURF

LI 82 0 5.92 4. 40 08 .18 ©64 44P SMOOTHNESS, PARKER PRINTSURF

L31 7 0 5.93 4.17 -. 19 -.03 1® 58 44 P SMOOTHNESS, PARKER PRINTSURF

LI 22 0 6.95 5.09 1.15 .26 1.35 44P SMOOTHNESS, PARKER PRINTSURF

L26 8 0 6.96 4.29 .76 -.44 ©99 44P SMOOTHNESS, PARKER PRINTSURF

L223 ft 6.25 5.94 2. 70 .34 1.07 44P SMOOTHNESS, PARKER PRINTSURF

GMEANS

:

6.08 4.29 1.00 95* ELLIPSE: CVJ 'Q •

CVJ .31 HITH GAMMA - 30 DEGREES

14
REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T45-1 TABLE 1 SMOOTHNESS, SHEFFIELD UNITS SHEFFIELD 1BSTER IS STANDARD FOR THIS ANALYSIS

LAB SAMPLEJ50 94 GEAMS PRINTING

1 PER SQUARE METER

SAMPLE

J74 PRINTING76 GRAMS PER SQUARE METER

TEST D.' 15 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LlOO 274,6 1.1 . 10 6.9 .98 80.7 1.4 . 19 5.6 1.12 45S 6 LlOO

LI 07 270,0 -3. 5 -.31 5.6 .79 134.4 55.0 7.53 8.6 1.71 45S » L107

LI 08 280.5 6.9 .62 6.5 .92 79.3 —. 1 -.01 4.0 .79 45S 0 L108

LI 14 275. 1 1.5 .14 10.3 1. 45 90.0 .6 .09 4.8 ,95 45S 0 LI 14

LI 1 5 272.0 -1.5 -.14 7.3 1. 03 83.7 4.3 .59 5.2 1.02 45S 0 LI 15

LI 2 1 245.2 -28.3 -2.52 8.0 1.13 76. 1 -3.2 -.44 6. 1 1. 20 45S • LI 2

LI 22 275.9 2.3 .21 8.3 1. 17 80.7 1.4 . 19 5. 8 1. 16 45S 0 LI 22

LI 23 280.7 7. 1 .63 11.6 1.64 81,4 2.0 .28 6.3 1.26 45S 0 L 1 23

LI 24 263.7 -9.8 -.87 4.9 .69 75.3 -4. 1 -. 56 4.0 .80 45S 0 LI 24

LI 25 263.3 -10.2 -.91 12.3 1.74 82.7 3.3 .45 6.5 1.29 45S 0 L125

LI 26 277.7 4.2 .37 9.9 1. 40 81.9 2.6 .35 5.3 1.05 45S 0 LI 26

LI 28 273.6 • 1 .01 4.9 .69 77.2 -2.2 -.29 3.5 .69 45S 0 LI 28 L132 275.9 2.3 .21 6.4 .91 78.3 “1.0 -. 14 5. 1 1.01 45S 6 L132

Li 34 283.7 10. 1 .90 5.2 .73 76.0 -3.4 -.46 5.7 1. 14 45S 0 LI 34 L139S 274.0 .5 .04 5. 1 .71 88.8 9.4 1.29 3.5 .70 459 0 L139S

L148 283.9 10.4 .92 9. 1 1.28 86.7 7.3 1.00 5.5 1.09 45S 0 LI 48

LI 50 284.9 1 1.3 1.01 6.7 .95 81.8 2.4 .33 5.2 1.04 45S 0 LI 50

LI 52 252.5 -21. 1 -1.87 3.1 .44 92.0 12.6 1.73 5. 1 1.01 45S • L152

Li 53 290.0 16.5 1.46 5.3 .75 99.2 19.8 2.72 4.8 .95 45S • LI 53

LI 57 289.5 16. 0 1.42 5.3 .75 83.7 4.4 .60 4.3 . 85 45S 0 LI 57

LI 58 268.0 -5.5 -.49 10.7 1.50 80.7 1.3 . 13 4.6 .91 45S 0 L158

LI 59 274.4 .5 .03 7.8 1. 10 80,2 .8 .12 5.6 1.11 459 0 LI 59 L162 273.7 . 1 .01 7.2 1. 01 76.7 -2.7 -.37 4.9 .97 45S 0 L162

LI 66 260. 1 -13.4 -1.19 6.3 .89 77.0 -2.4 -.32 5.3 1.04 45S 0 LI 66

LI 67 27 6.3 2.8 .25 4.8 .68 81.3 2.0 .27 3.5 .70 45S 0 LI 67 L173B 273.7 . 1 .01 7.7 1.08 78.7 -.7 -. 09 4.8 .95 45S 0 L173B

L183S 271.9 -1.7 -. 15 9.8 1.38 81.7 2.4 .33 6. 1 1.21 45S 0 L183S

L190C 258.0 -15. 5 -1.38 6.8 .95 83.7 4.3 .59 6.4 1.27 45S 0 L190C

LI 90S 257.6 -15.9 “1.42 4.3 .61 66.3 -13.0 -1.78 2.9 .57 45S 0 L190R

LI 95 265.3 -8.3 -.73 7.3 1.03 83. 1 3.7 .51 5.5 1.09 45S 0 LI 95 L203 273.0 -.5 -.05 6.2 .88 71.7 -7.6 -1.04 5.7 1.13 459 0 L203

L206 275.9 2.3 .21 6.9 .97 83.5 4.2 .57 5.0 .99 459 0 L2 06 L21 1 257. 1 -16.4 -1.46 7.2 1. 01 67.7 -11.7 -1.60 6.1 1.20 45S 0 L21

L213 266.3 -7.2 -.64 6.7 .94 66.5 -12.8 -1.75 5.7 1.12 45S 0 L213

L223 264.9 -8.7 -.77 6.5 .92 72.6 -6.8 -.92 4. 1 .82 45S 0 L223 L224 276.0 2.5 .22 9. 1 1.28 61.7 -17.6 -2c 41 4.9 .98 45S • L2 24 L226B 259.4 -14. 1 -1.26 8. 1 1. 14 70.2 -9.2 -1.25 5.5 1. 10 459 0 L226B

L228 287.3 13.7 1.22 13. 0 1.83 80.4 1.0 . 14 6.0 1.20 45S 0 L228

L23 0S 277. 1 3.6 .32 6.8 .96 80. 1 .8 .11 5. 8 1. 15 45S 0 L230S

L23

285.5 12.0 1.07 7.8 1. 10 77.9 -1.5 -.20 3.2 .64 45S 0 L231 L232S 276.3 2.8 .25 4.0 .56 78.0 -1.4 -. 19 4.9 .98 45S 0 L232S

L233 241.9 -31.7 -2.81 4.2 .59 75.5 -3.9 -. 53 5.0 .99 45S • L233

L237 275.0 1.5 . 13 5.0 .70 77.3 -2.0 -.28 2.6 .51 459 0 L237

L24

252.3 -21.2 -1.68 6,2 .88 85. 1 5. 8 .79 3.4 .67 45S 0 L241 L249 279.7 6. 1 .55 8.0 1. 12 78. 1 -1.2 -.17 4.4 .88 45S 0 L249 L254 263.9 -9.6 -.85 9.6 1.35 64.6 5.2 .72 8. 1 1.60 45S 0 L254

L255 275.6 2. 1 .18 5.6 .78 96.4 17.0 2. 33 2.7 .53 45S 0 L255

L257A 272.2 -1.3 -.12 5. 1 .71 87.6 8.2 1. 13 7.2 1.44 45S 0 L257A

L257B 283.5 9.9 .88 9. 1 1.28 99.1 19.7 2.70 6.7 1.34 45S • L257B

L257C 273.7 . 1 .01 7.7 1.09 98.3 19.0 2.60 6.2 1.24 45S * L257C

L259 296.3 22. 8 2.03 5.2 .73 85.1 5.7 .78 4.9 .96 45S 0 L259

L26 0 269.9 -3.7 -.33 3.9 .54 76.8 -2.6 -. 35 4.9 .98 45S 0 L260

L261 278.7 5. 1 .46 7.2 1.01 74.5 -4.9 -. 67 2.4 .47 45S 0 L261 L262 273.7 . 1 .01 8.5 1. 19 89. 1 9.7 1.33 6.5 1.29 453 0 L262 L27 5 285.0 11.5 1. 02 8.0 1. 13 76.3 -3.0 -.41 4.8 .95 45S 0 L275

L277 287.5 13.9 1.24 6.2 .88 91.9 12.6 1.72 6.0 1.19 45S 0 L277 L278 298. 1 24.5 2.18 6.4 .91 86.2 6.8 .94 6.2 1.23 45S 0 L278

L28

273.2 -.3 -.03 5.6 .78 76. 1 -3.3 -.45 6.2 1.22 4 5S 6 L26

L265 265.7 -7.9 -.70 6.8 .96 67.3 -12.0 -1. 64 5.0 .98 4 5S 0 L285

L288 NO DATA REPORTED FOR SAMPLE J50 81.4 2.0 .28 4.0 .79 4 5S M L288

L290 249.9 -23.6 -2. 10 4.0 .57 74.5 -4.8 -.66 5.3 1.05 45S 0 L290

L29IS 286.8 13.3 1. 18 4.9 .68 82.5 3. 1 .43 6. 1 1.20 45S 0 L291S

L3 0 5 278.5 5.0 .45 8.9 1.26 78.9 -.4 -. 06 6.5 1. 29 45S 0 L305

L308 275.7 2.2 .20 5.3 .75 72.9 -6.4 -.88 4.0 .80 45S 0 L308

L3I 2 292.0 18.5 1.64 3. 1 .44 85.8 6.4 .88 5.4 1.06 459 0 L312

15
REPORT NO. 60G

SAMPLE

LAB JSO

TAPPI COLLABORATE VE REFERENCE PROGRAM ANALYSIS T4S-1 TABLE 1 SMOOTHNESS. SHEFFIELD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

PRINTING SAMPLE PRINTING

94 GRAMS PER SQUARE METER J74 76 GRAMS PER SQUARE METER

JUNE 1979

TEST D. - 15 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

L317 277.7 4. 1 .37 7.3 1.03 73.1 -6.2 -.85 4.9 .97 45S e L317

L3 1 8 272.3 -1.3 -.11 7.5 1.05 76.4 -3.0 -.40 7.6 1.52 45S e L318

L321 251.7 -2 1© 9 -1.94 4.9 .69 73.7 -5.7 -.76 4.0 .79 45S 0 L321 L323 262.0 -11. 5 -1.02 7.3 1.03 78.7 -.7 -. 09 5.2 1.02 45S 0 L323

L326 253.4 ©• 1 -1.79 7.9 1. 12 87.3 6.0 1.09 4.3 .86 45S 0 L326

L328 285.2 11.7 1.04 7.5 1. 05 77.3 -2.0 -.28 4.2 .82 45S 0 L328

L352 271.9 -1.7 -.15 8.0 1. 13 81. 1 1.7 .23 4.6 .91 45S 0 L352

L36 0 273.7 . 1 .01 3.9 .55 73.2 -6.2 -o 84 5.3 1.06 45S 0 L360 L366 278.3 4.8 .43 8.2 1. 15 75.4 -4.0 -.54 5.3 1.06 45S 0 L366

L372 270.0 -3.5 -.31 6. 8 .96 64.1 -15.3 -2.09 5. 5 1.08 45S 0 L372

L376 274.0 .5 .04 5.7 .81 92.1 12. 8 1.75 4.5 .90 45S 0 L376

L30O 268.7 -4.9 -.43 7.7 1.08 73.0 -6. 4 -.87 3.7 .73 45S 0 L380

L382 284.9 11.3 1.01 5.9 .84 76.3 -3. 1 -.42 4.2 . 83 4 5S 0 L382

L390 265.0 -8.5 -.76 6.3 .88 76.7 -2.7 -.37 6.5 1.28 45S 0 L390 L554 277.0 3. 5 .31 1 0. 4 1.47 73.5 -5.8 -.80 5.7 1. 14 45S 0 L554 L575 299.9 26.3 2.34 7.5 1.05 79.2 -.2 -.02 6.4 1.27 45S 0 L575

L585 272.3 -1.2 -.11 9.0 1.27 71.7 -7.7 -1.05 5.2 1.04 45S <0 Lses

-L597 267.0 -6.5 -.58 10.3 1.45 72.9 -6.5 -.89 5.2 1.03 45S 0 L5 97 L600 280.3 6. 8 .61 8.4 1.16 83. 1 3.7 .51 5.4 1.07 45S 0 L600 L626 281.0 7.5 .66 8.3 1. 17 71.3 -0. 1 -1. 1 1 3.4 .67 45S 0 L6 26

L64 8 272.3 -1.2 -.11 9.5 1.34 73.0 -6.4 -.87 4. 1 .82 45S 0 L648

L651 235.0 -38.5 -3.42 4.6 .65 90.7 1 1.3 1.55 6.8 1.34 45S X L6 5 1 L670 278.7 5.2 .46 7.2 1.02 76.6 -.8 -o 10 3.7 .73 45S 0 L670

L679 269.9 -3.7 -.33 5.7 .81 82.3 2.9 .40 4.3 .85 45S 0 L679

L68 8 274.3 .0 .07 8.4 1. 19 73.7 -5.7 -.78 5. 8 1. 15 45S 0 L688

L69 8 285.8 12.3 1.09 5.1 .71 80.4 1.0 . 14 4.9 .96 45S 0 L698

GR© MEAN - 273.5 SHEFF. OMITS GRAND MEAN “ 79.4 SBEFF® UNITS TEST DETERMINATIONS - 15 SD MEANS 1 1.3 SHEFF. UNITS AVERAGE SDR

SD 6F MEANS - 7.3

• 7. 1 SHEFF. UNITS

SHEFF© UNITS AVERAGE SDR * 5.088 LABS IN GRAND

SHEFF© UNITS MEANS

LI 74 316.7 43.2 3.84 3® 8 T6TAL NUMBER 0F LAB6SA10RIES REPORTING a

Best values: J50 274 + 21 Sheffield units

J74 79 + 12 Sheffield units

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

• 54 92

1 96® 6 117.2 16. 04 2.5 .50 45R LI 74

16
REPORT NO. 600 TAFPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T45-1 TABLE 2 SMOOTHNESS, SHEFFIELD UNITS SHEFFIELD TESTER IS STANDARD FOR THIS ANALYSIS

LAB MEANS COORDINATES AVG CODE F JSO J74 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT—-CONDITIONS

L288 M 81.4 .79 45S SMOOTHNESS, SHEFFIELD

L651 X 235,0 90.7 -34.3 20. 8 1.00 45S SMOOTHNESS, SHEFFIELD

L233 « 241.9 75.5 -31.6 4.3 .79 45S SMOOTHNESS, SHEFFIELD

LI 2

« 245. 2 76. 1 -28.2 4. 1 1.16 45 S SMOOTHNESS, SHEFFIELD

L290 0 249.9 74. 5 -24.0 1.4 .81 45S SMOOTHNESS, SHEFFIELD

1321 0 251.7 73.7 -22.6 . 1 .74 45S SMOOTHNESS. SHEFFIELD

L24

0 252.3 85. 1 -19.0 11.0 .76 45S SMOOTHNESS, SHEFFIELD

Li 52 * 252.5 92.0 -17. 1 17.6 .73 45S SMOOTHNESS, SHEFFIELD

L326 0 253.4 87.3 -17.4 12.9 .99 45S SMOOTHNESS, SHEFFIELD

L21 1 0 257. 1 67.7 -18.8 -7. 1 1.10 45S SMOOTBNESS, SHEFFIELD L190R 0 257.6 66.3 -18.7 -6.5 .59 45S SMOOTHNESS. SHEFFIELD

Li 9 0C 0 258.0 83.7 -13.9 8. 1 1. 1 1 45 S SMOOTHNESS, SHEFFIELD L226B 0 259.4 70.2 -16.0 -5.2 1.12 45 S SMOOTHNESS, SHEFFIELD

Li 66 0 260. 1 77.0 -13.5 1.2 .97 45S SMOOTHNESS, SHEFFIELD

L32 3 0 26 2. 0 78.7 -11.3 2.3 1.02 45S SMOOTHNESS, SHEFFIELD

LI 2 5 0 263.3 82.7 -9.0 5. 8 1.52 45S SMOOTHNESS, SHEFFIELD

LI 24 0 263. 7 75.3 -10.5 -1.4 .74 45S SMOOTHNESS, SHEFFIELD

L254 0 263.9 84.6 -7.9 7.5 1.48 45S SMOOTHNESS, SHEFFIELD

L223 0 264.9 72.6 -10. 1 -4.3 .87 45S SMOOTHNESS, SHEFFIELD

L39 0 0 26 5. 0 76.7 -8.9 -.4 1.08 45S SMOOTHNESS, SHEFFIELD

L 1 95 0 265.3 83.1 -7.0 5.7 1.06 45S SMOOTHNESS, SHEFFIELD

L285 0 265.7 67.3 -10.7 -9.6 .97 45S SMOOTHNESS, SHEFFIELD

L21 3 0 266. 3 66.5 -10.2 -10.6 1.03 45S SMOOTHNESS, SHEFFIELD

L597 0 267. 0 72.9 -8.0 -4.6 1.24 45S SMOOTHNESS, SHEFFIELD

Li 58 0 26 8. 0 80.7 -5.0 2.7 1.21 45S SMOOTHNESS. SHEFFIELD

L380 0 268.7 73.0 -6.3 -4.9 .91 45S SMOOTBNESS, SHEFFIELD

L67 9 0 269.9 62.3 -2.8 3.8 .83 45S SMOOTHNESS, SHEFFIELD

L26 0 0 269.9 76. 8 -4.2 -1. 5 .76 45S SMOOTHNESS. SHEFFIELD

LI 0 7 ft 270.0 134. 4 10.7 54. 1 1.25 45S SMOOTHNESS, SHEFFIELD

L372 0 270.0 64. 1 -7.3 -13.9 1.02 45S SMOOTHNESS, SHEFFIELD L183S 0 271.9 81.7 -1.0 2.7 1.30 45S SMOOTHNESS, SHEFFIELD

L352 0 271.9 81.1 -1.2 2. 1 1.02 45S SMOOTHNESS. SHEFFIELD

LI 1 5 0 272.0 83.7 -.4 4.6 1*02 45S SMOOTHNESS, SHEFFIELD

L257A 0 272.2 87.6 .8 8. 3 1.07 45S SMOOTHNESS, SHEFFIELD

L31 8 0 272.3 76.4 -2.0 -2.5 1.29 45S SMOOTBNESS, SHEFFIELD

L64 8 0 272.3 73.0 -2.8 -5.8 1.08 45S SMOOTBNESS, SHEFFIELD

L585 0 272.3 71.7 -3.1 -7. 1 1. 16 45S SMOOTHNESS, SHEFFIELD

L203 0 273.0 71.7 -2.5 -7.2 1.00 45S SMOOTHNESS, SHEFFIELD

L28 1 0 273.2 76. 1 -1.2 -3. 1 1.00 45S SMOOTHNESS. SHEFFIELD

LI 2 8 0 273.6 77.2 -.5 -2. 1 .69 45S SMOOTHNESS, SHEFFIELD L173B 0 273.7 78.7 -.0 -.7 1.02 45S SMOOTHNESS, SHEFFIELD

L36 0 0 273.7 73.2 -1.4 -6.0 .80 45S SMOOTHNESS, SHEFFIELD

L262 0 273.7 89. 1 2.6 9.4 1.24 45S SMOOTHNBSS. SHEFFIELD L257C « 27 3.7 98.3 5.0 18.3 1. 16 45S SMOOTHNESS, SHEFFIELD

LI 62 0 273.7 76.7 -.6 -2.6 .99 45S SMOOTHNESS, SHEFFIELD

L376 0 274.0 92. 1 3.7 12.2 .85 45S SMOOTHNESS, SHEFFIELD

LI39S 0 274.0 88. 8 2.9 9.0 .71 45S SMOOTHNESS, SHEFFIELD

L688 0 274.3 73. 7 -.7 -5.7 1.17 45S SMOOTBNESS, SHEFFIELD

LI 59 6 274. 4 80.2 1.1 .6 1.10 45S SMOOTHNESS, SHEFFIELD

L100 0 274.6 80.7 1.4 1. 1 1. 05 45S SMOOTHNESS, SHEFFIELD

L237 0 275.0 77.3 .9 -2.3 .61 45S SMOOTHNESS, SHEFFIELD

LI 14 0 275. 1 80.0 1.7 .2 1.20 45S SMOOTHNESS, S HEFFI ELD

L25 5 0 275.6 96.4 6.4 15.9 .66 45S SMOOTHNESS, SHEFFIELD

L30 8 0 275.7 72.9 .5 -6. 8 .78 45S SMOOTHNESS, SHEFFIELD

L132 0 275.9 78.3 2.0 -1.6 .96 45S SMOOTHNESS. SHEFFIELD L206 0 275.9 83.5 3.3 3.4 .98 45S SMOOTHNESS, SHEFFIELD

Li 22 0 275.9 80.7 2.6 .7 1.17 45S SMOOTHNESS, SHEFFIELD

L224 * 276.0 61.7 -2.1 -17.7 1. 13 45S SMOOTHNESS, SHEFFIELD

L232S 6 276.3 78.0 2.4 -2.0 .77 45S SMOOTHNESS, SHEFFIELD

L167 0 276.3 81.3 3.2 1.2 .69 45 S SMOOTHNESS, SHEFFIELD

L554 0 277.0 73.5 1.9 -6. 5 1.31 45S SMOOTHNESS, SHEFFIELD

L230S 0 277. 1 80. 1 3.7 -.2 1.05 45S SMOOTHNESS, SHEFFIELD

L31 7 0 27 7.7 73. 1 2.4 -7.1 1.00 45S SMOOTHNESS, SHEFFIELD

L126 0 277.7 81.9 4.7 1.4 1.23 45S SMOOTBNESS, SHEFFIELD

L366 0 278.3 75.4 3.6 -S. 1 1.11 45S SMOOTHNESS. SHEFFIELD

17
REPORT NO. 60G TAFPI. COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T4S-I TABLE 2 SMOOTHNESS, SHEFFIELD UNITS

SHEFFIELD TESTER IS STANDARD FOB THIS ANALYSIS

LAB CODE F MEANS

J50 J74 COORDINATESMAJOR MINOR

AVG

R.SBR VAB PROPERTY— -TEST INSTRUMENT—-CONDITIONS

L305 0 278© 5 78.9 4.7 -1.7 1.27 45S SMOOTHNESS, SHEFFIELD

L261 0 27 8© 7 74.5 3.7 -6.0 .74 45S SMOOTHNESS, SHEFFIELD

L67 0 6 278.7 78o 6 4.8 -2. 1 .88 45S SMOOTHNESS, SHEFFIELD

L249 0 279.7 78.1 5.6 -2.8 1.00 45 S SMOOTHNESS. SHEFFIELD

L60 0 0 280.3 83. 1 7.5 1.8 1. 12 45S SMOOTHNESS, SHEFFIELD

Li 06 e 280.5 79.3 6.7 -1.9 . 86 45S SMOOTHNESS, SHEFFIELD

LI 23 a 28 0© 7 81.4 7.4 a S 1.45 45S SMOOTHNESS, SHEFFIELD

L626 o 281.0 71.3 5.2 -9.7 .92 45S SMOOTHNESS, SHEFFIELD

L2 57B a 283.5 99. 1 14.7 16.5 1.31 45S SMOOTHNESS, SHEFFIELD

Li 34 0 2e3. 7 76.0 8.9 -5. 8 .93 45S SMOOTHNESS, SHEFFIELD

LI 4 8 0 283.9 86.7 11.9 4.4 1.18 45S SMOOTHNESS, SHEFFIELD

LI 50 e 284.9 81.8 11.6 -.5 .99 45S SMOOTHNESS, SHEFFIELD

L362 o 284.9 76.3 10.2 -5.9 .83 45S SMOOTHNESS, SHEFFIELD

L27 5 e 285.0 76.3 10.3 -5.9 1.04 45S SMOOTHNESS, SHEFFIELD

L32 6 o 285.2 77.3 10.8 -4.9 .94 45S SMOOTHNESS, SHEFFIELD

L231 0 285.5 77.9 11.2 -4.5 .87 45S SMOOTHNESS, SHEFFIELD

L69 8 o 285.8 80.4 12.1 -2. 1 ® 84 45S SMOOTHNESS, SHEFFIELD

L291S 0 286. 8 82.5 13.6 -.4 .94 45S SMOOTHNESS, SHEFFIELD

L228 o 287® 3 80.4 13.6 -2.5 1.51 45S SMOOTHNESS, SHEFFIELD

L277 0 287® 5 91.9 16.7 8.6 1.03 45S SM001HNESS, SHEFFIELD

Li 57 0 289.5 83.7 16.6 . £ .80 45S SMOOTHNESS, SHEFFIELD

Li 53 * 290.0 99.2 21,0 15.0 .85 45S SMOOTHNESS, SHEFFIELD

L312 0 292.0 85.8 19.5 1.5 .75 45S SMOOTHNESS, SHEFFIELD

L259 0 296.3 85. 1 23.5 “.3 . 85 45S SMOOTHNESS, SHEFFIELD

L278 0 298. 1 86.2 25*5 .3 1.07 45S SMOOTHNESS, SHEFFIELD

L575 0 299.9 79.2 25.4 -6.9 1. 16 45 S SMOOTHNESS, SHEFFIELD

LI 7 4 316.7 196.6 71.8 102.3 .52 45B SMOOTHNESS, SHEFFIELD, NON-STANDARD INSTRUMENT

GMEANS; 273.5 79.

4

95* ELLIPSES 28.8 17.3

1.00 WITH GAMMA 03 14 DEGREES

18
SHEFF.

UNITS

SMOOTHNESS , SHEFFIELD

SAMPLE J50 = 274. SHEFF . UNITS SAMPLE J74 = 79. SHEFF . UNITS

SHEFF. UNITS

19
REPGRT N6. 600 TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T45-2 TABLE 1 SMOOTHNESS , BERK SECONDS

TAPPI SUGGESTED METHOD 1479 SU-71 , SMOOTHNESS OF PAPER (BERK METHOD)

LAB SAMPLE

J50 94 GRAMS PRINTINGPER SQUARE METER

SAMPLE

J74 76 GRAMS FEINTINGPER SQUARE METER TEST D® • 15 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB L139B 10.59 .26 ,41 .52 .90 87. 13 7® a e .69 8® 13 .91 45K 0 L139B

LI 62 10.20 -.10 -. 15 .41 .72 82.20 2® 24 .22 7® 84 e 88 45K 0 L 1 62 L162K 9.31 -1.00 -1.47 .74 1.29 71.53 “8® 42 -.81 5® 57 .62 4 5K 0 L 1 82 K L19 0C 10.33 .03 .04 .62 1. 07 78.27 - 1 «69 -.16 7® 74 .87 45K 0 L 1 90C L230B 8.93 -1.37 -2.01 .70 1.22 90.47 ao.sa 1. 01 6® 85 .77 45K 0 L230B

L232B 10.07 -.24 -.35 .34 . 58 69.77 -10® 18 -.98 6*49 .73 45K 0 L232B

L274K 10.75 .44 .65 .96 1.66 68.48 —11*48 -1. 10 3*27 .37 45K 0 L274K

L291K 10.83 .52 .77 .78 1.34 101.87 21*91 2.11 10®78 1.21 45K 0 L291K L564 11.20 .90 1,31 .56 .97 71.27 -8*69 -.84 5*62 .63 4 5K 0 L564

L581 10,27 -.04 -.06 .46 .79 84® 13 4® 18 .40 10® 8 8 1.22 45K 0 LS81 L697 10.89 .58 .85 .28 .48 74.41 -5® 54 -.53 24*99 2. 80 45K 0 L697

GR. MEAN - 10.30 BEKK SECONDS GRAND MEAN - 79.96 BEKK SECONDS TEST DETERMINATIONS “ 15 SD MEANS • .68 BEKK SECONDS AVERAGE SDR - SD OF MEANS « .58 BEKK SECONDS

10.39 BEKK SECONDS

AVERAGE SDR • 8© 92

1 1 LABS IN GRAND

BEKK SECONDS MEANS

L250M 10.21 -.10 -. 14 .99 1.71 67.73 -12*22 -1. 18 4® 40 ®49 45L L250M

L2S1 9.79 -.52 -.76 .47 .82 74.53 ^5*42 -.52 4® 94 • 55 45L * L251 TOTAL NUMBER OF LABORATORIES REPORTING » 13

Best values: J50 10 Bekk seconds

J74 79 Bekk seconds

REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T45-2 TABLE 2 SMOOTHNESS . BEKK SECONDS

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

LAB MEANS COORDINATES AVG CODE F J50 J74 MAJOR MINOR R. SDR VAE PROPERTY— -TEST INSTRUMENT—-CONDITIONS

L230B 0 e® S3 90*47 -10.52 -1.3 1 .99 45K SMOOTHNESS, BEKK L182K 0 9® 3 1 71. 53 6® 42 -1.05 .95 45K SMOOTHNESS, BEKK

L251 9.79 74*53 5. 42 -.55 .69 45L SMOOTHNESS, BEKK, 20 C, 65% RH L23 2B 0 1 C 0 07 69.77 10® 18 -.30 .65 45 K SMOOTHNESS, BEKK

LI 62 0 10®20 82* 20 -2*24 -.09 .80 45K SMOOTHNESS, BEKK

L25 0M 10®21 67.73 12. 22 -. 17 1.10 45L SMOOTHNESS, BEKK, 20 C, 65% BH L581 0 10.27 84*13 -4. 18 -.01 1.01 45K SMOOTHNESS, BEKK L190C 0 1 0®33 78. 27 1 © 69 .02 .97 45K SMOOTHNESS, BEKK L139B 0 1 0® 59 87. 13 -7® 17 .33 .91 45K SMOOTHNESS, BEKK L274K 0 10*75 66.48 1 1 ® 48 .37 1.01 45K SMOOTHNESS, BEKK

L291K 0 1 0® 83 101.87 -21®91 .66 1.28 45K SMOOTHNESS, BEKK L697 0 10® 89 74.41 5.55 .55 1.64 45K SMOOTHNESS, BEKK

L564 0 11®20 71.27 8.70 .84 .80 45K SMOOTHNESS, BEKK GMEANS

:

1 0® 3 0 79. 96 1.00 95% ELLIPSE; 31* 96 2.08 flITH GAMMA ®-89 DEGREES

20
BEKK

SECONDS

SMOOTHNESS , BEKK

SAMPLE J50 =10.3 BEKK SECONDS SAMPLE J74 = 80.0 BEKK SECONDS

LD05

'

O

CD'

ANALY

LU

Q_

z:CL

CO

o

(D O

0)

NOT [N GRAND MEANS

IS I S T 45-2

LD

r-' o

r~'

o

cr>'

LD

LD' O

LD'

+b

© ©

©

SAMPLE J50

—i

25 —i

10 15 20 30 35 40 45 50 55 60 65 70 75

BEKK SECONDS

21
REPORT NO. 600 TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T47-1 TABLE 1 SMOOTHNESS, BENDTSEN

SAMPLE PRINTING SAMPLE PRINTING TEST O•

• O LAB JSO 94 GRAMS PER SQUARE METES J74 76 GRAMS PEB SQUARE METEfi C6DE MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

LIOO 476.5 -5.9 -.11 IS. 1 • 33 85.1 -8.0 -1. 13 7. 1 .76 4 7B a L100 L182B 552,5 70. 1 1.27 46.3 1.01 95.2 2. 1 .29 11.8 1.27 47B 0 L182B

L236 484,0 1.6 .03 72.3 1.58 102.9 9.8 1.38 13.3 1.43 47B 0 L236

L242 472.5 -9.9 -.18 69.2 1.51 86.1 -7.0 -.99 11.2 1.20 47B 0 L242

L244 230.0 -252.4 -4.58 19.4 .42 73.5 -19.6 -2.76 12.8 1.37 47B U L244 L248 435.5 -46.9 -.85 42.7 .93 86.9 -6.2 -.87 6.5 .70 47B a L246

L313 449.5 -32.9 -.60 46.3 1.01 91.5 -1.6 -. 23 10.3 1. 10 47B a L313

L333 574.0 91.6 1.66 54.9 1.20 94.2 1. 1 . 15 7.2 .77 47B 0 L333 L484 415. 0 -67.4 -1.22 20.1 .44 103.0 9.9 1.39 7.2 .77 47B 0 L484

GR« MEAN * 482.4 ML/MIN GRAND MEAN - 93.1 ML/MIN TEST DETERMINATIONS - 10 SB MEANS - 55. 1 ML/MIN SD OF MEANS * 7.1 ML/MIN 8 LABS IN GRAND MEANS

AVERAGE SDR s if! • <6 ML/MIN AVERAGE SUE - 9.3 ML/MIN TOTAL NUMBER OF LABORATORIES REPORTING) - 9 Best values: J50 480 milliliter per minute

J74 90 milliliter per minute

Data from the following laboratories appear to be

off by a multiplicative factor: 244.

REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS 147-1 TABLE 2 SMOOTHNESS, BENDTSEN

LAB MEANS COORDINATES AVG C0DE F JSO J74 MAJOR MINOR R. SDR VAS PROPERTY— -TEST INSTRUMENT CONDITIONS

L244 0 23 0® 0 73.5 -252.5 -18.9 .90 47B SMOOTHNESS, BENDTSEN, WG 150 L4 84 a 4 l 5® 0 103.0 -67.4 10. 1 .61 47 B SMOOTHNESS, BENDTSEN, WG 150 L248 a 435.5 86.9 -47.0 ”6. 1 .81 47B SMOOTHNESS, BENDTSEN, WG 150 L3I3 a 449.5 91.5 -32.9 -1.5 1. 06 47B SMOOTHNESS, BENDTSEN, WG 150 L242 a 472.5 66. 1 -10.0 -7.0 1.36 47B SMOOTHNESS, BENDTSEN, WG 150 LIOO a 476.5 85. 1 -6.0 -8.0 .54 47B SMOOTHNESS, BENDTSEN, WG 150 L236 a 484.0 102.9 1.6 9.8 1.50 47B SMOOTHNESS. BENDTSEN, WG 150 LI82B a 552.5 95.2 70. 1 1.9 1.14 47B SMOOTHNESS, BENDTSEN, WG 150 L333 a 574.0 94.2 91.6 .8 .98 47B SMOOTHNESS, BENDTSEN, WG 150 GMEANS: 482.4 93. I 1.00 95* ELLIPSE: 191.0 24.6 WITH GAMMA - 0 DEGREES

22
BE POST NO. 600 TAFPI COLLABORATIVE BEFEBENCE PBOOBAM ANALYSIS T56-I TABLE 1 KAN INK ABS0BPTI6N

JUNE 1979

SAMPLE

E50 PBINTING91 GBAMS PEB SQUABE METES SAMPLE

B80 COATED OFFSET BOOK

75 GBAMS PEB SQUABE METEB

TEST D. -

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

LI 26 63.52 -1.55 -.29 .29 .49 25. 17 .07 .02 .85 .68 56K 0 LI 26

LI 49 58.75 -6.32 -1.17 .50 .85 23.75 -1.36 -.47 2.50 2.01 56K O L149

LI 62 66.27 1.20 .22 .43 .72 25.32 .22 .08 .85 .68 56K 0 LI 82 L213 68.22 3.15 .59 .79 1.34 27.60 2.49 .87 1.43 1.15 56K 0 L213

L277 69.75 4.68 .57 .50 .85 26.25 1.14 .40 .50 .40 56K o L277

L29 1 67.25 2. 18 .40 1.04 1.76 22.75 -2.36 -.82 1.26 1.01 56K 0 L291 L333 59.25 -5.82 -1.08 .50 .85 22.00 -3. 11 -1.08 .82 .66 56K 0 L333 L339 73.87 8.80 1.64 .25 .42 30.67 5.77 2.01 1.44 1. 15 56K & L339

LS64 32.25 -32.82 -6.10 .50 .85 60.50 35.39 12.32 1.00 .80 56K 0 L564

L6 1 6 .25 -64.82 -12.04 .00 .00 .60 -24.51 -8.53 .00 .00 56K 0 L616

L643 58.75 -6.32 -1.17 1.01 1.72 22.25 -2.86 -. 99 1.56 1.25 56K 0 L643

GB. MEAN • 65.07 KAN UNITS GRAND MEAN • 25. 1KAN UNITS TEST DETERMINATIONS t SD MEANS • 5.38 KAN UNITS SD OF MEANS - 2.87 KAN UNITS 9 LABS IN GRAND MEANS

AVERAGE SDR • .59 K A N UNITS AVERAGE SDR • 1.24 KAN UNITS

L651 28.47 -36.60 •6.80 .96 1.63 51.37 26.27 9. 14 .85 .68 560 L651

Lo8 8 25.02 -40.05 -7.44 .44 .75 56.20 31.09 1 0.82 .98 .79 560 L668 TOTAL NUMBEfi OF LABORATORIES EEPOBTING

Best values: E50 65 K + N units

B80 25 K + N units

The following laboratories were omitted from the grand means because of extreme test results: 564,

616.

BEPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T56-1 TABLE 2 KAN INK ABSORPTION

LAB MEANS COORDINATES AVG C6DE F E50 B80 MAJOR MINOB B. SDB VAR PROPERTY—TEST INSTRUMENT CONDITIONS

£.616 ft .25 .60 -69.04 6.02 .00 56 K INK ABSORPTION, KAN INK TEST

L68 8 25.02 56.20 -22.61 45.38 .77 560 INK ABSORPTION: 0WN METH0D

L651 28.47 51.37 -21.59 39.54 1.16 560 INK ABSORPTION: 0WN METHOD

L56 4 ft 32.25 60.50 -14.23 46.12 .83 56K INK ABSORPTION, KAN INK TEST

L64 3 6 58.75 22.25 -6. 94 .17 1.49 56 K INK ABSORPTION, KAN INK TEST

LI 49 0 58.75 23.75 -6.29 1.52 1.43 56K INK ABSORPTION, KAN INK TEST L333 0 59.25 22.00 -6.59 -.28 .75 56 K INK ABSORPTION, KAN INK TEST

LI 26 0 63.52 25. 17 -1.37 .73 .58 56 K INK ABSORPTION, KAN INK TEST

LI 82 0 66.27 25.32 1. 18 -.33 .70 56 K INK ABSORPTION, KAN INK TEST

L29 1 0 67.25 22.75 .94 -3.07 1.39 56K INK ABSORPTION, KAN INK TEST

L213 0 68.22 27.60 3.92 .88 1.25 56 K INK ABSORPTION, KAN INK TEST L277 0 69.75 26.25 4. 71 -1.00 .62 56K INK ABSORPTION, KAN INK TEST

L339 0 73.87 30. 87 10.43 1.38 .79 56 K INK ABSORPTION, KAN INK TEST GMEANS

65.07 25.11 1.00 95* ELLIPSE: 19.53 4.67 WITH GAMMA - 25 DEGREES

23
REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS 157-1 TABLE l HYDROGEN ION CONCENTRATION <PH). COLD

TAPPI STANDARD T509 OS-77 SAMPLE PRINTING SAMPLE REPROCOPY TEST D. - 5 LAB J 1

6

93 GRAMS PER SQUARE METER A99 78 GRAMS PER SQUARE METER

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

L174C 3.300 -1.434 -6.60 .000 .00 4. 540 — I. 066 -3.71 .055 .39 57F * L174C

Li 82C 4.858 .124 © 57 .011 .16 5. 818 .21

2

.74 .04 8 .34 57D 0 L182C

L2S1C 4.658 -.076 -.35 .029 .42 5o 466 -e 140 -.49 .069 .49 57P 0 L251C

L274 4.420 -.314 -1.44 .220 3.22 5.720 .114 .39 .220 1.55 57V 0 L274

L32 6 4.790 .056 .26 . 074 l® 09 5.420 -.186 -.65 .409 2. 87 57M 0 L328 L356 4.740 .006 .03 .055 .80 5.46® -. 146 -.51 .055 .39 57V 0 L356

L442 4.571 -. 163 -•75 .019 .28 5.261 -.345 -1.20 .124 .87 570 0 L442

L4 84A 5. 100 • 366 1.68 .071 1.04 6. 100 .494 1.72 .071 .50 57Y 0 L4 84A

GR. MEAN - 4.734 PH UNITS GRAND MEAN “ 5.606 PH UNITS TEST DETERMINATIONS • 5 SD MEANS - .217 PH UNITS SD OF MEANS - .288 PH UNITS 7 LABS IN GRAND MEANS

AVERAGE SDR - . 068 PH UNITS AVERAGE SDR »

. 142 PH UNITS

TOTAL NUMBER OF LABORATORIES REPORTING - 8 Best values: J18 4.7 pH units

A99 5.6 pH units

The following laboratories were omitted from the grand means because of extreme test results: 174C.

REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T57-1 TABLE 2 HYDROGEN ION CONCENTRATION (PH), COLD

TAPPI STANDARD T509 OS-77

LAB MEANS COORDINATES AVG C0DE F J18 A9 9 MAJ0B MINOR R. SDR VAR PROPERTY— -TEST INSTRUMENT— --CONDITIONS

L174C * 3.300 4.540 -1.669 .639 .19 57F PH, COLD, FISHER ACCUMET MODEL 220

L2 74 6 4.420 5. 720 -.072 .326 2.38 57 V PH, COLD, BECKMAN EXPANDOMATIC

L442 0 4. 571 5.261 -.379 -.048 .58 570 PH, COLD, ORION DIGITAL IONALYZER

L251C 0 4.658 5.466 -.159 -.01 1 .45 57P PH, COLD, RADIOMETER TYPE PH M64 L356 6 4.740 5. 460 -.120 -.oe4 .59 57V PH, COLD, BECKMAN EXPANDOMATIC

L328 0 4.790 5.420 127 -. 147 1.98 57 M PH, COLD, BECKMAN ZEROMATIC

L182C 0 4.858 5.818 .245 ® C09 o 25 57D PH, COLD, RADIOMETER TYPE PH M 28 L484A 0 5 0 100 6.100 .613 -.044 .77 57 Y PH, COLD, BECKMAN MODEL H2 GMEANS

:

4.734 5.6 06 1.00 95* ELLIPSE: 1.218 .568 BITH GAMMA - 57 DEGREES

24
REPORT NO. 600 TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS TS7-2 TABLE 1 BYBROGEN ION CONCENTRATION (PH), HOT

TAPPI STANDARD T435 OS-77

JUNE 1979

SAMPLE PRINTING SAMPLE REPROCOPY TEST D. • 5 LAB J 1

8

93 GRAMS PER ;SQUARE METER A99 78 GRAMS PER SQUARE METER

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

LI 2 6 4.292 -. 120 -1.10 .013 .50 5.074 -.026 -.45 • 009 .20 57L 0 LI 28 L162 4.336 -.076 -.69 .029 1. 10 5.020 -.000 -1.39 .033 .76 57C e L162

L174H 3. 180 -1.232 - 11.30 .045 1.70 4.060 -1.040 - 18. 14 .055 1.25 57G 0 L174H

L182H 4.482 .070 .65 • 004 .17 5.170 .070 1.23 .047 1.07 57E 0 L182H

L334 4.388 -.024 -.22 .030 1. 15 5. 134 .034 .60 .059 1.36 57C 0 L334

L4S4B 4.560 • 148 1.36 . 055 2.08 5. 100 .000 .01 .071 1.61 57Z 0 L4 84B

GR, MEAN - 4.412 PH UNITS GRAND MEAN " 5.100 PH UNITS TEST DETERMINATIONS - 5 SD MEANS - .109 PH UNITS SD OF MEANS * .057 PH UNITS 5 LABS IN GRAND MEANS

AVERAGE SDR - .026 PH UNITS AVERAGE SDR - .044 PH UNITS TOTAL NUMBER OF LABORATORIES REPORTING • 6

Best values: J18 4.4 pH units

A99 5.1 pH units

The following laboratories were omitted from the grand means because of extreme test results: 174H.

REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T57-2 TABLE 2 HYDROGEN ION CONCENTRATION (PH), HOT

TAPPI STANDARD T435 OS-77 LAB MEANS COORDINATES AVG CODE F Jie A99 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L174H • 3. 180 4.060 •1.501 -.586 1.48 57G PH. HOT, FISHER ACCUMET MODEL 220 L128 6 4.292 5.074 -.121 .014 .35 57L PH. HOT. L*N L162 0 4.336 5.020 -.097 -.051 .93 57C PH. BOT. CORNING MODEL 12 RESEARCH METER L334 0 4.388 5.134 -.011 .040 1.25 57C PH, HOT. CORNING MODEL 12 RESEARCH METES

L182H 0 4.482 5. 170 .089 .044 .62 57E PH. HOT, RADIOMETER TYPE PH M 28 L484B 0 4.56 0 5. 100 . 141 -.048 1.85 57Z PH. HOT. BECKMAN MODEL H2 GMEANS: 4.412 5. 100 1.00 95% ELLIPSE: .576 .234 WITH GAMMA - 18 DEGREES

25
REPORT N0» 600 TAPPI C0LLAB0RATI VE REFERENCE PROGRAM JUNE 1979 ANALYSIS 760-1 TABLE 1 OPACITY <89* REFLBCTANCE BACKINGS IN PERCENT

TAPPI STANDARD T425 0S-75, OPACITY OF PAPER <15 DEG©/DIFFUSE, ILLUMINANT A i - BAL TYPE SAMPLE PRINTING SAMPLE PRINTING TEST D. - 10 LAB K24 103 GRAMS PER SQUARE METER GO 1 116 GRAMS PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI 05 95.94 .55 1.47 .18 .67 96.42 .60 1.36 .16 .67 60H 0 L 1 05

LI 08 95.32 -.07 -.20 .30 1. 09 95.69 -.13 -.29 .18 .74 60B 0 LI 08

LI 15 95.48 .09 .23 .21 .70 96.23 .41 .93 .24 1.00 60B 0 LI IS

LI I 8 95.54 .15 .39 .30 1. 10 95. 86 .04 .09 .13 .53 60B 0 LI 18

LI 2

1

95.51 .12 .31 .17 .60 95. 89 .07 . 16 .22 .93 60B 0 L 1 21

LI 22 95. 17 -.22 -.60 .31 1. 13 95.73 -.09 -© 20 .21 .86 60D 0 LI 22

LI 23 94.82 -.57 -1.54 .22 . 30 95.85 .03 .07 .33 1.36 60W X LI 23

Li 24 95.47 .08 .21 .51 1.84 96.04 .22 .50 .36 1.48 60B 0 L124

LI 2 5 94.76 -.63 -1.70 .30 1.07 95.37 -.45 -1.01 .17 .71 60H 0 LI 25

L131 94.61 -.70 -2. 10 .23 . 83 95.39 -.43 -o 97 .31 1© 29 6 OR » L131

LI 32 95.09 -.30 -.02 .31 1. 13 95. 79 -.03 -.06 .14 .60 6 OB 0 LI 32

LI 34 96.00 .61 1.63 .00 .00 96® 10 ©28 .63 .32 1.31 6 OR 0 LI 34

Li 36 95.30 -.09 -.25 .31 1. 1

1

95. 63 -.19 -.42 .33 1.36 60H 0 LI 36

LI 39 95.28 -.11 -.31 .32 1. 16 95.64 = ® 18 —©40 .15 .63 6 OB 0 L139 L148H 95. 10 -.29 -.79 .30 lo 08 95. 53 -.29 -.65 .25 1. 06 60H 0 L148H

LI 50 96.00 .61 1.63 .24 .85 96.75 .93 2. 10 .42 1.77 6 OB 0 LI 50

LI 52 95.71 .32 .85 .18 .65 96. 19 .37 .84 .23 ©95 60B 0 L152

LI 53 95.40 .01 .02 .39 1.43 95.75 -.07 —a 15 .26 1 © 09 60B 0 LI 53

LI 57 95.89 .50 1.33 .33 1.21 96. 10 .28 .63 .32 1.31 60B 0 LI 57

LI 58 55.54 .15 .39 .17 .62 95. 89 .07 . 16 .29 1.21 6 0D 0 L 1 58

Li 59 95.51 .12 .31 .12 .43 95.97 .15 ©34 .20 . 83 60R 0 L 1 59

Li 62 95.59 .20 .53 .28 1. 03 96.27 .45 1.02 .25 1.06 60W 0 L 162

LI 66 55. 19 -.20 -.55 .31 1. 14 95.78 — © 04 -.09 .29 1. 19 60B 0 LI 66 LI73A 55.34 -.05 14 .12 o 43 95.48 — ©34 -© 76 .06 .26 6 OB 0 L173A

LI90C 95.51 .12 .31 .21 .77 95.90 .08 .18 .38 1.59 60B 0 L190C

LI 90S 95.54 .15 .39 .22 .79 95® 95 a 13 .3© . 10 .40 60B 0 L190R

L206 55.54 .15 .39 .31 1. 14 95.76 -.06 -« 13 .19 .79 60S 0 L206

L2I OB 95.42 .03 .07 .36 1.32 95.93 © 1

1

.25 .13 .52 60B 0 L210B

L210D 95.43 .04 .10 .21 .76 95.95 ® 13 .30 .22 .90 60D 0 L210D

L21 IS 55.22 -.17 -.47 .21 .78 95.61 -©21 -.47 .17 .72 60R 0 L21 IS L212 95.60 .21 .55 .62 2.23 96.06 .24 .54 .69 2. 87 60B 0 L212 L213 55.74 .35 .93 .49 1.76 96.48 ©66 1©49 .35 1.45 60B 0 L213 L223B 55.39 -.00 -.01 .37 1.35 96.05 ©23 .52 .25 1.02 60S 0 L223B

L225 55.57 .18 .47 .29 1® 05 96.03 .21 .48 .18 .73 60B 0 L225 L226B 95.42 .03 .07 .23 .83 95. 79 -.03 -® 06 .26 1.08 60B 0 L226B

L228 94.98 -.41 -1.11 . 19 © 68 95.38 -.44 -.99 .19 .78 60H 0 L228

L230 95.58 .19 .50 .36 1.32 95.91 .09 ©21 .22 .91 60B 0 L230 L236B 95.02 -.37 -1.00 .49 1.79 95.62 -©20 -.45 .37 1.53 6 OB 0 L236B

L23 8A 54.73 -.66 -1.78 .21 .75 95® 13 —©69 - 1 o 55 .14 .59 60R 0 L238A

L24I 55.66 .27 .72 .25 .92 96.20 ©38 .86 .16 .68 60B e L24

1

L254 95.57 • 18 .47 .33 1.21 96.06 .24 .54 , 18 .76 60H 0 L254 L255 54.77 -.62 -1.67 .23 e 84 94.99 -o83 -1. 87 .25 1.04 60B 0 L255

L259 55.10 -.29 -.79 .30 1. 09 95.66 -® 16 -.36 .32 1.33 6 OB 0 L259

L26I 56.40 1.01 2.70 .32 1.15 97.00 1© 18 2.66 .00 .00 60B » L261 L262 55.51 .12 .31 .19 .67 96.00 .18 .41 .22 .90 60R 0 L262 L275 95.23 -.16 -.44 . 13 .45 96.04 ©22 ©50 .18 .76 60R 0 L275

L27 8 55.60 .21 .55 .33 1.21 95.93 .11 ©25 .16 .65 60B 6 L278

L26I 55.57 .18 .47 .27 .98 96.21 .39 . 80 .22 .91 60D 0 L28

1

L285D 94.61 -.58 -1.57 .27 .99 95. 13 -.69 -1.55 .13 .52 60D 0 L285D

L285R 54.85 -.54 -1.46 .41 1. SO 95.06 -©76 -1.71 ©08 *35 60R 0 L285R L266 55.59 .20 .53 .29 1.06 96.09 ©27 .61 .15 .63 60D 0 L288

L305 54.86 -.53 -1.43 .19 .69 94. 84 -.98 -2.20 .15 .63 60R 0 L305

L30 8 95.91 .52 1.39 .35 1.26 96.65 ©83 1.87 ©50 2.07 60H 0 L308

L3 1 5 55.23 -. 16 -.44 .24 . 85 95.65 -.17 -.38 ©14 .60 60 D 0 L315

L3I 7 54.99 -.40 -1.08 .31 1. 1 1 95. 50 -.32 -.72 .29 1.22 6 OB 0 L317 L3I8 95.45 .06 . 15 .44 la 59 96 o 0i © 19 .43 .33 1.36 6 OB 0 L318 L323 55.95 .56 1.49 .26 .95 96.65 .83 1. 87 . 16 .69 60W 0 L323

L32 6 95.06 -.33 -.90 .20 .71 95. 17 —.65 -1.46 .27 1.11 60B 0 L326

L32 8 54.00 -1.39 -3.74 1.75 6. 33 96.25 .43 .97 1.32 5.47 60S X L328

L339 95.40 .01 .02 .52 1. 87 95.60 -.22 -.49 .52 2.15 60B 0 L339

L341 95.26 -.13 -.36 .30 1.07 95.25 -.57 - 1© 28 .27 1. 13 60R 0 L34 1 L352 55. 11 -.28 -.76 .26 .94 95.82 .00 .00 .17 .70 60S 0 L352

L354 55.00 -.39 -1. 06 .00 .00 95.00 -.82 -1.84 .00 .00 60B 0 L354

L390 95.56 .17 .45 .21 .77 95.62 -.20 -.45 1.08 4.49 60B 0 L390 L396 95.00 -.39 -1.06 .00 .00 95.00 -©82 -1.84 .00 .00 60B 0 L396 26
REPORT NO. 600 TAPP I COLLABORATIVE BEFE BENCE P BOORAM JUNE 1979 ANALYSIS T60-1 TABLE 1 OPACITY < 89* REFLECTANCE BACKING ) IN PEBCBNT

TAFPI STANDARD T425 0S-7S, OPACITY OF PAPBB (15 DEG./DIFFUSE, ILLUHINANT A) - BAL TYPE

SAMPLE PRINTING SAMPLE PRINTING TEST D. * 10 LAB K24 103 GRAMS PBR SQUARE METER GO 1 116 GRAMS PER SQUARE METBR

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

L523 95*30 -.09 -.25 .21 .74 95. 86 .04 .09 • 20 .81 60R 6 L523

L571 95.50 .11 .29 .31 1.12 95.98 . 16 .36 .16 .67 60D 0 L571 L573 95.52 .13 .34 .19 .70 95. 92 .10 .23 .18 .73 60H 0 L573

L581 95.53 .14 .37 .32 1.15 95. 95 .13 .30 .21 .86 60B 0 L5 81 L592 94.94 -.45 -1.22 .46 1.68 95o 30 -o52 -1.17 .21 .85 60W 0 L592

L594 95.64 .45 1.20 .26 .95 95. 92 .10 .23 .09 .38 60D 0 L594 L597 95.00 -.39 -1.06 .00 .00 95.20 -.62 -1.39 .42 1.75 60B 6 L597

L59 9 95.25 -.14 -.39 .35 1.28 95.75 -.07 -. 15 .42 1.77 60B 6 L599

L6 03 96. 15 .76 2.03 .18 .67 96.57 .75 1.69 .29 1.22 60D 6 L608

L673R 95.83 .44 1.17 .35 1.28 96.05 .23 .52 .10 .40 60B 0 L673R L673T 55.40 .01 • 02 .34 1.23 95.79 -.03 -. 06 .19 .77 60B e L673T

L668 56.24 .85 2.27 .40 1.44 96.65 .83 1.87 .30 1.24 6 OB 6 L688

L692 55.29 -.10 -.28 .33 1.21 95.80 -.02 -. 04 .20 .83 60D 6 L692

L69 8 54.65 -.74 -2.00 • 26 .94 95.11 -.71 -1.60 .14 .57 60D 0 L698

GR. MEAN * 55.39 PERCENT GRAND MEAN • 95.82 PERCENT TEST DETERMINATIONS - 10 SD MEANS * .37 PERCENT SD 6F MEANS * .44 PERCENT 77 LABS IN GRAND MEANS

AVERAGE SDR -

•

CD PERCENT AVERAGE SDR • .24 PERCENT

L100 55.56 .17 .45 .20 .73 95.98 .16 . 36 .19 .80 60E L100

L224 95.86 .47 1.25 .21 .75 95.62 -.20 -.45 .56 2.32 60P * L224

1.23 2 55.00 -.39 -1.06 .00 .00 95.30 -.52 -1. 17 .42 1.75 60P L232

L249 95.11 -.28 -.76 .21 .75 95. 54 -.28 -. 63 .40 1.65 60P L249 L256 94.96 -.43 -1. 16 .32 1. 16 95.45 -.37 -.83 .20 .81 60N L2S6

L260 95.49 • 10 .26 .19 .67 95.71 -.11 -. 24 .26 1.08 60P * L260 L274P 95.00 -.39 -1.06 .41 1.48 96.05 .23 .52 .37 1.53 6 OP L274P

L277 4.80 -90.59 -243.23 .42 1.53 4.40 -91.42 -205.99 .52 2. 15 60P L277

L31 2 54.55 -.84 -2.27 .28 1.03 94.90 -.92 -2.07 .32 1.31 60P L312

L360 55.00 -.39 -1.06 • 00 • 00 95.00 -.82 -1.84 • 00 • 00 60P L380

L564 95.00 -.39 -1.06 .00 .00 95. 10 -.72 -1.62 .32 1.31 60P L564

L687 55.80 .41 1.09 .67 2.45 96.30 .48 1.09 .35 1.45 6 OP L687 TOTAL NUMBER OF LABORATORIES REPORTING - 91

Best values: K24 95.4 + 0.,6 percent

G01 95.8 + 0.8 percent

27
F

X

6

6

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0

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Ne« 600 TAPP I. COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS Y60-1 TABLE 2 ePACITY 189* REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 aS-7S, OPACITY 0F PAPER {IS DEG* /DIFFUSE, ILLUMINANT A) - BAL TYPE

MEANS C6a RBI NATES AVO

K24 GO l MAJSB MINOR R® SDR VAR PROPERTY-—TEST INSTRUMENT-—CONDITIONS

4.80 4.40 -128. 15 11.93 1.84 6®P OPACITY < WHITE BACKING )

»

PHOTOVOLT

94.00 96.25 -.SS 1.35 5.90 6GE OPACITY (WHITE BACKING ), BAUSCH L0MB

94.55 94.90 -1.25 .07 1.17 60P OPACITY (WHITE BACKING ), PHOT0 VOLT

94.61 95.39 -.83 .33 1.06 60S OPACITY (WHITE BACKING )

,

THWING-ALBERT ( FORMERLY SRL) 94.65 95. 11 -1.02 .12 .75 60D OPACITY (WHITE BACKING), BNL-2

94.73 95. 13 -.95 .08 .67 60S OPACITY ( WHITE BACKING )

,

THWI NG-ALBERT ( FORMERLY SRL ) 94.76 95.37 -.75 .20 .89 60H OPACITY ( WHITE BACKING), HUYGEN

94.77 94.99 -1.04 -.04 .94 60J3 OPACITY ( WHITE BACKING), BAUSCH L0MB

94.81 95. 13 -.90 .01 .75 60D OPACITY ( WHITE BACKING ), BNL-2

94.82 95.85 -. 34 • 46 1.08 60W OPACITY ( WHITE BACKING ) , HUYGEN, DIGITAL

94.65 95.06 -.93 -.06 .93 60K OPACITY { WHITE BACKINGS, THWI NG-ALBERT ( FORMERLY SRL) 94.86 94. 84 -1.09 -.21 .66 60R OPACITY (WHITE BACKING), THWI NG-ALBERT < FORMERLY SRL) 94.94 95.30 -.69 .02 1.26 0OW OPACITY (WHITE BACKING )

,

HUYGEN, DIGITAL

94.96 95.45 -.56 .10 ,99 60N OPACITY ( WHITE BACKING). HUNTER

94.98 95.38 -.60 .04 .73 60H OPACITY (WHITE BACKING), HUYGEN

94.99 95. 50 50 • 11 1. 17 6®B OPACITY < WHITE BACKING )

,

BAUSCH LOMB

95.00 96.05 -.07 .45 1.51 60P OPACITY (WHITE BACKING ), PH6T0V0LT

95.00 95.10 -.80 -.15 .66 60P OPACITY ( WHITE BACKING), PH0T0V0LT

95.00 95.00 -.88 -.22 .00 60P OPACITY (WHITE BACKING ), PHOTOVOLT

95.00 95.30 -.65 -.03 .88 60P OPACITY ( WHITE BACKING), PHOTOVOLT

95.00 95.20 -. 73 -.09 .88 60B OPACITY < WHITE BACKING), BAUSCH LOMB

95.00 95.00 -.88 -.22 .00 60B OPACITY (WHITE BACKING ), BAUSCH LOMB

95.00 95.00 -.88 -.22 .00 60B OPACITY ( WHITE BACKING ), BAUSCH » LOMB

95.02 95.62 -.39 .16 1.66 60B OPACITY (WHITE BACKING), BAUSCH LOMB

95.06 95.17 -.71 -.15 .91 0OB OPACITY (WHITE BACKING), BAUSCH LOMB

95.09 95.79 -.21 .22 .86 6®B OPACITY ( WHITE BACKING ), BAUSCH LOMB

95.10 95.66 -.31 .13 1.21 60B OPACITY (WHITE BACKING ), BAUSCH LOMB

95.10 95.53 -.41 .04 1.07 60B OPACITY ( WHITE BACKING ), HUYGEN

95.11 95.82 -. 18 .22 .82 60R OPACITY (WHITE BACKING ), THWING-ALBERT (FORMERLY SRL)

95.11 95.54 -.40 .04 1.20 60P OPACITY < WHITE BACKING), PHOTOVOLT

95.17 95.73 -.21 .12 1.01 60D OPACITY ( WHITE BACKING), BNL-2

95. 19 95.78 -. 16 .13 1. 16 6© B OPACITY ( WHITE BACKING), BAUSCH * LOMB

95,22 95.61 -.27 .00 .75 60S OPACITY ( WHITE BACKINGS, THWI NG-ALBERT ( FORMERLY SRL ) 95.23 95.65 -.23 .02 .73 60D OPACITY ( WHITE BACKING ), BNL-2

95.23 96.04 .07 .27 .61 60P OPACITY { WHITE BACKING), THWI NG-ALBERT ( FORMERLY SRL ) 95.25 95.75 14 .07 1.52 60B OPACITY ( WHITE BACKING), BAUSCH * LOMB

95.26 95.25 52 -.26 1. 10 60 R OPACITY ( WHITE BACKING), THWI NG-ALBERT ( FORMERLY SRL ) 95.28 95.64 -.21 -.03 .89 6® B OPACITY ( WHITE BACKING), BAUSCH * LOMB

95.29 95.80 -.08 .07 1.02 60D OPACITY ( WHITE BACKING 5, BNL-2

95.30 95.63 -.21 -.05 1.23 60 H OPACITY ( WHITE BACKING )

,

HUYGEN

95.30 95.86 -.03 .10 .78 6QR OPACITY { WHITE BACKING), THWI NG-ALBERT (FORMERLY SRL) 95.32 95.69 15 -.02 .92 60B OPACITY ( WHITE BACKING ), BAUSCH * LOMB

95.34 95.48 -.30 -.17 .34 60B OPACITY ( WHITE BACKING). BAUSCH * LOMB

95.39 96.05 . 18 .15 1. 19 60B OPACITY < WHITE BACKING ), BAUSCH LOMB

95.40 95.79 02 -.02 1.00 60B OPACITY ( WHITE BACKING ), BAUSCH * LOME

95.40 95.75 -.05 -.05 1.26 6®B OPACITY (WHITE BACKING), BAUSCH LOMB

95.40 95.60 16 -.14 2.01 60B OPACITY (WHITE BACKING), BAUSCH * LOMB

95.42 95.79 -.01 -.04 .96 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

95.42 95.93 .10 .05 .92 60B OPACITY (WHITE BACKING ), BAUSCH * LOMB

95.43 95.95 . 12 .06 .83 601) OPACITY ( WHITE BACKING ), BNL-2

95.45 96.01 . 18 .08 1.47 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

95.47 96.04 • 22 .08 1.66 60B OPACITY (WHITE BACKING ), BAUSCH LOMB

95.48 96.23 .37 .19 .89 60B OPACITY ( WHITE BACKING ), BAUSCH * LOMB

95.49 95.71 ->.02 -.14 .88 60P OPACITY ( WHITE BACKING ), PHOTOVOLT

95.50 95.98 . 19 .02 .90 6QD OPACITY ( WHITE BACKING ), BNL-2

95.51 95. 89 . 13 -.04 .77 60B OPACITY ( WHITE BACKING), BAUSCH * LOMB

95.51 96.00 .21 .03 .78 60JR OPACITY C WHITE BACKING ), THWI NG-ALBERT ( FORMERLY SRL ) 95.51 95.97 . 19 .01 .63 60R OPACITY ( WHITE BACKING), THWI NG-ALBERT ( FORMERLY SRL)

95.51 95.90 . 14 -.04 1. 18 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

95.52 95.92 . 16 -.03 .71 60H OPACITY < WHITE BACKING), HUYGEN

95.53 95.95 . 19 -.02 1.00 60B OPACITY ( WHITE BACKING), BAUSCH * LOMB

95. S4 95.76 .05 -.15 .96 60B OPACITY (WHITE BACKING ), BAUSCH * LOMB

95.54 95.95 . 19 -.03 .60 60B OPACITY ( WHITE BACKING), BAUSCH * LOMB

95.54 95.89 . 15 -.07 .92 60D OPACITY (WHITE BACKING ), BNL-2

95.54 95.86 • 13 -.09 .81 60B OPACITY < WHITE BACKING), BAUSCH * LOMB

28
REPORT NO. 60G TAPP I COLLABORATIVE REFERENCE PROGRAM JUNE 1979

LAB CODE F

ANALYSIS T60-1 TABLE 2 OPACITY (89« REFLECTANCE BACKING) IN PERCENT

TAPPI STANDARD T425 OS-75, OPACITY OF PAPER OS DEG./DIFFUSE, ILLUMINANT A) - B4L TYPE MEANS COORDINATES AVG

K24 GO 1 MAJOR MINOR H. SDH VAR PROPERTY TEST INSTRUMENT CONDITIONS

L39 0 0 95.56 95.62 -.05 -.25 2.63 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L100 95.56 95.98 .23 -.03 .77 60E OPACITY ( WHITE BACKING >, ZEISS ELREPHO, FMY-C( 10 ) FILTER

L281 0 95.57 96.21 .41 . 1 1 .94 60D OPACITY ( WHITE BACKING ), BNL-2

L22S 0 95.57 96.03 .28 -.00 .89 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L254 0 95.57 96.06 .30 *02 .99 60H OPACITY ( WHITE BACKING), HUYGEN

L23 0 0 95.58 95.91 . 19 -.09 1.11 60 B OPACITY ( WHITE BACKING), BAUSCH * LOMB L286 0 95.59 96.09 .33 .02 *85 60D OPACITY ( WHITE BACKING ), BNL-2

LI 62 0 95.59 96.27 .47 .14 1.04 60V? OPACITY (WHITE BACKING), HUYGEN, DIGITAL

L278 0 95.60 95.93 .22 -.09 .93 60B OPACITY ( WHITE BACKING ), BAUSCH LOMB

L21 2 0 95.60 96.06 .32 -.01 2.55 60B OPACITY (WHITE BACKING), BAUSCH LOMB

L241 0 95.66 96.20 .46 . 04 .80 60B OPACITY ( WHITE BACKING), BAUSCH * LOMB

LI 52 0 95.71 96.19 .49 -.01 . 80 60B OPACITY ( WHITE BACKING), BAUSCH - LOMB

L21 3 0 95.74 96.48 .73 .15 1.61 60B OPACITY ( WHITE BACKING), BAUSCH * LOMB

L687 • 95.80 96.30 .63 -.01 1.95 60P OPACITY ( WHITE BACKING ), PHOTOVOLT

L673R 0 95.83 96.05 .46 -.19 .84 60B OPACITY (WHITE BACKING), BAUSCH LOMB

L594 0 95.84 95.92 .36 -.28 .67 60D OPACITY ( WHITE BACKING), BNL-2

L224 . 95.86 95.62 . 14 -.49 1.54 60P OPACITY ( WHITE BACKING )

,

PHOTOVOLT

L157 0 95. 89 96. 10 .53 -.20 1.26 60 B OPACITY ( WHITE BACKING), BAUSCH * LOMB

L308 0 95.91 96. 6^ .97 .13 1.67 60B OPACITY ( WHITE BACKING), HUYGEN

LI 0 5 0 95.94 96.42 .81 -.04 .67 60S OPACITY (WHITE BACKING ), HUYGEN

L323 o 95.95 96.65 1.00 . 10 .82 60V? OPACITY ( WHITE BACKING), HUYGEN, DIGITAL

LI 50 0 96.00 96.75 1.10 .12 1.31 60B OPACITY (WHITE BACKING ), BAUSCH * LOMB

LI 34 o 96.00 96.10 .60 -.29 .66 60R OPACITY ( WHITE BACKING), THWING-ALBERT (FORMERLY SRL)

L608 0 96.15 96.57 1.06 -.11 .95 60D OPACITY (WHITE BACKING ), BNL-2

L68 8 0 96.24 96.65 1.18 -.13 1.34 60B OPACITY (WHITE BACKING ), BAUSCH - LOMB

L261 • 96.40 97.00 1.55 -.03 .57 60B OPACITY ( WHITE BACKING), BAUSCH - LOMB

GMEANS

95.39 95.82

9S« ELLIPSE: 1.42 .33

1.00 KITH GAMMA - 50 DEGREES •

29
PERCENT

OPACITY, B£L TYPE, 897. BACKING

SAMPLE K24 = 95.4 PERCENT SAMPLE GOl = 95-8 PERCENT

PERCENT

30
REPORT Nfl. 600 TAPP I COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T60-2 TABLE 1 OPACITY (PAPER BACKING) IN PERCENT

1APPI STANDARD T425 OS-75. OPACITY OF PAPER (IS DEG./DIFFUSE. ILLUMINANT A) - BAL TYPE

SAMPLE PRINTING SAMPLB PRINTING TEST ©• a o LAB K24 103 GRAMS PER SQUARE METER G01 116 GRAMS PER SQUARE MBTER

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

LI 15 95.74 .09 . 66 .27 1. 16 94. 09 .21 .63 .32 1.18 60C 0 LI 15

LI IS 95.79 • 14 1.02 .24 1. 04 93.6S -.20 -.61 .16 .64 60C O LI 18 L190C 95. 58 -.07 -.47 .22 .94 93.78 -.10 -.31 .20 .75 60C 0 L190C

L190R 95.71 .06 .45 .19 .79 93. 66 -.02 -.07 .25 .94 60C 0 L190R

L236B 95.66 .01 .09 .36 1.53 94.41 .53 1.60 .38 1.41 60C 0 L236B

L274 96.10 .45 3.23 .46 1.97 96.25 2.37 7. 18 .26 .97 60C * L274

L543 95.40 -.25 -1.76 .12 .53 93.47 -.41 -1.25 .29 1.07 60V 0 L543

GR. MEAN - 95.65 PERCENT GRAND MEAN - 93.88 PERCENT TEST DETERMINATIONS - 10 SD MEANS * .14 PERCENT SD OF MEANS - .33 PERCENT 6 LABS IN GRAND MEANS

AVERAGE SDR - .23 PERCENT AVERAGE SDR • .27 PERCENT TOTAL NUMBER OF LABORATORIES REPORTING - 7

Best values: K24 95.7 percent

G01 93.9 percent

The following laboratories were omitted from the grand means because of extreme test results: 274.

REPORT Nfl. 60G TAFPI COLLABORATI VE REFERENCE PROGRAM JUNE 1979 ANALYSIS T60-2 TABLE 2 OPACITY (PAPER BACKING) IN PERCENT

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

LAB MEANS COORDINATES AVG CODE F K24 G01 MAJOR MINOR R. SDR VAR PROPERTY 'TEST INSTRUMENT CONDITIONS

L543 0 95.40 93.47 -.46 • 15 .80 60V OPACITY ( PAPER BACKING ), DIAN0/BNL

L19 0C 0 95.58 93.78 -.11 .04 .85 60C OPACITY ( PAPER BACKING ). BAUSCB LOMB

L236B 0 95.66 94.41 .52 • 10 1.47 60C OPACITY ( PAPER BACK ING ) , BAUSCB LOMB

LI 9 OR 0 95.71 93.86 -.01 -.07 .87 60C OPACITY ( PAPER BACKING ). BAUSCB LOMB

LI 1 5 0 95.74 94.09 .22 -.05 1.17 60C OPACITY ( PAPER BACKING). BAUSCB LOMB

LI I 8 0 95.79 93.68 -.17 -.18 .84 60C OPACITY ( PAPER BACKING). BAUSCB LOMB

L274 * 96.10 96.25 2.41 .07 1.47 60C OPACITY ( PAPER BACKING ). BAUSCB LOMB

GMEANS

95.65 93.88 1.00 95* ELLIPSE: 1.40 .51 KITH GAMMA - 77 DEGREES

31
REPORT NO. 600 TAPPI CflLLABORATI VE REFERENCE PROGRAM JUNE 1979 ANALYSIS T60-3 TABLE 1 OPACITY (PAPER BACKINGS IN PERCENT

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

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 10 LAB K24 103 GRAMS PER SQUARE METES GO 1 116 GRAMS1 PER SQUARE METER

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

L100 56. 29 .04 .24 • 20 1. 16 94.50 .11 .45 . 15 .91 60J 0 L100

LI 50 96.14 -.11 -.68 .17 . 95 94.29 -.10 -.44 .17 1.04 60J 0 LI 50 L182E 96. 10 -.15 -.54 • 14 .81 94. 19 -.20 -. 86 .14 .89 60J 0 L182E

L219 NO DATA REPORTED FOR SAMPLE K24 94. 15 -.24 •1.01 .21 1.28 60F M L219 L233F 96.12 -.13 -.82 .19 1. 07 94. 14 -.25 -1.08 .11 .66 60F 0 L233F

L23 6 96.04 -.21 -1.31 .14 .81 94.31 -.09 -.37 .18 1.08 60J 0 L236

L242 96.25 -.00 -.01 .14 .82 94.43 .04 . 15 .21 1.26 60J o L242

L244 96.03 -.22 -1.38 .09 .54 94.05 -.34 -1.46 .11 .66 60F o L244 L250T 96.20 -.05 -.32 .18 1. 01 94.45 .06 .24 .16 1.01 60J 0 L250T

L251 97.89 1.64 10.24 .16 .93 96. 80 2.41 10. 19 .20 1.20 60F » L251

L309 96.24 -.01 -.05 .14 .79 94.29 -.10 -.43 .12 .76 60J 0 L309

L31

3

96.41 • 16 .991 .19 1.09 94. 59 .20 .83 .17 1.06 60J o L313

L360 96.18 -.07 -.44 .18 1.00 94.08 -.31 -1.33 .24 1.46 60F o L360 L446 96.35 .10 .61 • 14 .78 94.48 .09 .38 .13 1. 10 60J 0 L446

L484 96.28 . 03 . 18 .40 2.31 94. 48 .09 .36 .24 1.49 6 OF 0 L484 L575 96.53 .28 1.76 .17 .97 94.68 .29 1.23 . 14 .85 60J o L575

LS9 8 96.26 .01 .06 .17 .98 94.37 -.02 10 .14 .87 60J 0 L598

L678 96.59 .34 2. 12 . 16 .91 94.97 .58 2.44 .15 .91 60J o L678

GR. MEAN * 96.25 PERCENT GRAND MEAN - 94.39 PERCENT TEST DETERMINATIONS - 10 SD MEANS . 16 PERCENT SD OF MEANS - .24 PERCENT 16 LABS IN GRAND• MEANS AVERAGE SDR • .18 PERCENT AVERAGE SDR - .16 PERCENT

L626 96.09 -.16 -1.01 .07 .42 93.91 -.48 -2. 05 .17 1.02 600 L626 TOTAL NUMBER OF LABORATORIES REPORTING * 19

Best values: K24 96.2 + 0.3 percent

G01 94.4 + 0.4 percent

The following laboratories were omitted from the grand means because of extreme test results: 251.

REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS TOO—3 TABLE 2 OPACITY (PAPER BACKING) IN PERCENT

TAPPI SUGGESTED METBOD TS19 OS-78, DIFFUSE OPACITY OF PAPER - ILLUMINANT C, ELREPHO TYPE

LAB MEANS COORDINATES AVG

CODE F K24 GO 1 MAJOR MINOR R. SDR VAR PROPERTY—TEST INSTRUMENT— -CONDITIONS

L2I9 M 94. 15 1.28 60F OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY—C( 10 ) NO TRAP

L244 0 96.03 94.05 -.41 -.00 .60 60 F OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY-C( 10) NO TRAP

L236 o 96.04 94.31 -. 19 .13 o 95 60J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY-C( 10 ) FILTER

L626 96.09 93.91 -.49 -. 13 .72 60Q OPACITY ( PAPER BACKING), PH6T6V0LT

LI62E o 96.10 94. 19 -.25 .02 .85 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY—C( 10 ) FILTER

L233F 0 96. 12 94. 14 -.28 -.03 .66 60F OPACITY ( PAPES BACKING), ZEISS ELREPHO, FMY-C( 10 ) NO TRAP

LI 50 6 96.14 94.29 -. is .04 .99 60J OPACITY ( PAPES BACKING), ZEISS ELREPHO, FMY—C( 10 ) FILTER

L36 0 0 96.18 94.08 -.30 -.11 1.23 60F OPACITY ( PAPES BACKING ), ZEISS ELREPHO, FMY—C( 10 ) NO TRAP L250T 0 96.20 94.45 .02 .07 1.01 60J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY—C( 10 ) FILTER

L309 0 96.24 94.29 -.09 -.05 .78 60J OPACITY < PAPER BACKING), ZEISS ELREPHO, FMY-C( 10

)

FILTER

L242 6 96.25 94.43 .03 .02 1.04 60J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY-C( 10

)

FILTER

L59 8 0 96.26 94.37 -.02 -.02 .92 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY-C( 10 ) FILTER

L4 64 e 96.28 94.4 8 .09 .02 1.90 60F OPACITY ( PAPER BACK ING )

,

ZEISS ELREPHO, FMY-C( 10

)

NO TRAP

L100 e 96.29 94.50 .11 .03 1.03 60 J OPACITY ( PAPER BACKING ), ZEISS ELREPHO, FMY-C( 10 ) FILTER

L44 6 0 96.35 94.48 . 13 -.03 .94 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY—C( 10 ) FILTER

L313 e 96.4 1 94.59 .25 -.03 1.07 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY—C( 10

)

FILTER

L575 0 96.53 94.68 .40 -.08 .91 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY—C( 10

)

FILTER

L678 6 96.59 94.97 .67 .03 .91 60 J OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY—C( 10

)

FILTER

L251 • 97.39 96.80 2.91 -.06 1.06 6 OF OPACITY ( PAPER BACKING), ZEISS ELREPHO, FMY—C( 10 ) NO TRAP GMEANS

:

96.25 94.39 1.00 95* ELLIPSE: .79 . 16 III GAMMA - 56 DEGREES

32
PERCENT

0PRC I T Y . ELREPH0 TYPE, PAPER BACKING

SAMPLE K24 = 96-25 PERCENT

i i i SAMPLE GO 1 = 94.39 PERCENTi i i L

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33
BEPeRT NO. 60G TAPPS COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T6S-1 TABLE 1 DIRECTIONAL BLUE REFLECTANCE IN PERCENT

TAPP I STANDARD T4S2 OS-77. > BRIGHTNESS'; MARTIN SWEETS «ACBT A GE > IS STANDARD FOR THIS ANALYSIS

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 8 LAB E79 1 16 GRAMS PBB SQ0AHE METER J96 89 GRAMS PER SQUARE METER

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

LI 08 56. IS • IS .51 .14 1. 19 75.92 -.04 -.11 . 13 .99 65M 0 L108

LI 22 56.39 .39 1.32 . 14 1. 14 76.02 • 06 . 18 .07 .55 65M 0 L122

LI 32 55.62 -.37 -1.27 .07 .60 76. 17 .21 .60 .13 .99 65N 0 LI 32

LI 58 57.04 1.04 3.52 .07 .63 77.29 1.32 3.78 .12 .94 65N » L158 L176A 54. 1

1

-1.89 -6.40 .04 .30 74.51 -1.45 -4. 15 .12 .97 65A 0 L176A

L190C 95.66 -.34 -1.14 .09 .77 75.45 -.51 -1.47 . 12 .93 65A 0 L190C

L210M 55.74 -.26 -.89 .15 1.27 75. 94 -.03 -.08 . 19 1.49 65M e L210M

L210N 56.00 .00 .00 .05 .45 76.41 .45 1.28 .15 1. 13 65N 0 L210N

L21 1 54.19 -1.81 -6.15 .69 5.80 76.31 .35 1.00 . 10 .77 65N • L211

L22 5 56.04 .04 .13 . 12 1.00 75.74 -.23 65 .18 1.37 65N o L225

L259 95.81 -. 19 -.63 .23 1.93 75.75 -.21 -.61 .12 .93 6 5M 0 L259

L275 56.02 .03 .09 .18 1.54 76.24 .27 .78 .13 1.01 65M 0 L275

L285 55.62 -.37 -1.27 .15 1.25 75® 84 -.13 -.36 .14 1.09 6 5N 0 L285

L28 8 56.10 .10 .34 .08 .64 76.26 .30 .85 .11 .82 65N o L288

L30 8 56.10 .10 .34 .08 .64 76.49 .52 1.50 .08 .65 65N 0 L308 L315 56.22 .23 .77 .10 . 87 76.3© .34 .96 . 16 1.24 65N 0 L315

L31 7 55.51 -.49 -1.65 .10 .83 75. 35 -.61 -1.76 .19 1.49 65M o L317

L523 55.74 -.26 -.89 .05 .44 75.66 -.30 -.86 .15 1.17 65N 0 L523

L543 96.31 .31 1.06 .17 1. 45 76.36 .40 1.14 .11 .82 65M 6 L543

L565 55.84 -.16 -.55 .07 .63 75.65 -.31 -.90 .14 1. 10 65A 0 L565

L59 8 96.16 .16 .55 .13 1. 10 75.89 -.08 -.22 .08 .65 65M 0 L598

L636 96.54 .54 1.83 .20 1.68 75.46 -.50 -1.43 .28 2.15 6SM » L636 L673R 97.56 1.56 5.30 .09 .77 76.01 .05 a 14 o08 .65 65N 0 L673R

L692 56.40 .40 1.36 • 15 1.27 76.36 .40 l. 14 .07 .58 65N 0 L692

GR. MEAN * V* V • o o PERCENT GRAND MEAN 75. 96 PERCENT TEST DETERMINATIONS - 8 SD MEANS - .29 PERCENT SD 0F MEANS - .35 PERCENT 20 LABS IN GRAND MEANS

AVERAGE SDR - . 12 PERCENT AVERAGE SDR - .13 PERCENT

Li 05 56.77 .78 2.63 .14 1. 17 76.64 .67 1.93 .13 1.01 65T LI 05 L213 57.07 1.08 3.65 .07 .60 76.19 .22 .64 o 10 .77 65T L213

L219 97.76 1.76 5.98 .05 .44 77.75 1.79 5. 1

1

.08 .59 65P L219 L223 97.81 1.81 6.15 .06 .54 77.30 1.34 3.82 .13 1.02 65G L223

L224 56.24 • 24 .81 .07 .63 7 6o 56 .60 1.71 .09 .71 65H L224 L232 96.00 .00 .00 .00 .00 77.37 1.41 4.04 .23 1.79 65P L232

L241 55.96 -.04 -.13 .05 .44 76.42 .46 1.32 .17 1. 29 651 L241 L249 96.02 .03 .09 .07 .60 77. 11 1. 15 3.29 .17 1.34 65P L249 L256 95.86 -.14 -.46 .12 1.00 75.26 -.70 -2. 01 .12 .92 65H L256

L26 0 95.85 -.15 -.51 .16 1.35 75.92 -.04 -.11 .14 1.08 65P L260

L277 93.37 -2.62 -8.90 .52 4.36 81.25 5.29 15. 12 .46 3.59 65P L277 L278 95.81 -.19 -.63 .30 2. 52 75.87 -.09 -.25 .23 1.79 65P L278

L312 56.56 .56 1.91 .50 4. 17 78.37 2.41 6.90 .52 4.01 65P L312

L321 100.00 4.00 13.57 .00 . 00 79.50 3.54 1 0. 12 .00 .00 65P L321 L339 98.82 2.83 9.59 .12 .98 79.00 3.04 8.69 .00 .00 65P L339

L380 95.25 -.75 -2.54 .46 3.90 79.00 3.04 8.69 .00 .00 6 5P L380

L442 98. 12 2. 13 7.21 .09 .75 75.45 -.51 - 1.47 .09 .72 65T L442

L562 57.00 1.00 3.40 .00 • 00 81.50 5® 54 15.84 .00 .00 65P L562 L564 96.25 .25 .85 .46 3.90 78.00 2.04 5. 83 .00 .00 65P L564

L591 58.68 2.68 9.09 .08 .70 75.86 -.10 -. 29 .13 1.00 65H L591 L617 97. 15 1. 15 3. 90 .05 .45 77.60 1.64 4.68 .09 .72 65G L617 L626 98.65 2.65 8.99 . 19 1.62 78.89 2.92 8.36 .08 .65 65P L626

L684 92.41 -3.59 - 12. 17 .22 1.82 75. 32 -.64 -1.83 .16 1.23 65H L6 84 L695 58.75 2.75 9.33 .27 2.25 78.06 2. 10 6. 00 .42 3.24 65P L695

L69 8 56.60 .60 2.04 .08 .64 76.40 .44 1.25 .29 2.27 651 L698 TOTAL NUMBER OF LABORATORIES REPORTING - 49

Best values: E79 96.0 + 0.4 percent

J98 76.0 + 0.5 percent

The following laboratories were omitted from the grand means because of extreme test results: 158, 176A, 211, 673R.

34
REPORT NO. 600 TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T6S-1 TABLE 2 DIRECTIONAL BLUE REFLECTANCE IN PERCENT

TAPPI STANDARD T4S2 OS-77, *BRIGBTNBSS a ; MARTIN SHEETS ( ACBT A GE ) IS STANDARD FOR THIS ANALYSIS

LAB CODE F MEANS

E79 J9 8 COORDINATESMAJOR MINOR AVGR. SDR VAF PROPERTY—TEST INSTRUMENT CONDITIONS

L684 92.41 75.32 -2.51 2.64 1.52 65 H BLUE REFLECTANCE (DIRECTIONAL), HUNTER

L277 93.37 81.25 2.95 5.11 3.97 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L176A 0 94.11 74.51 -2.25 .77 .63 65A BLUE REFLECTANCE ( DIRECTIONAL), MARTIN SHEETS (ACBT),S-2

L21 1 0 94.19 76.31 -.71 1.70 3.29 65N BLUE REFLECTANCE (DIRECTIONAL), TECHNIDYNE/DIANO/M. S. , S- L3S0 95.25 79.00 2. 12 2.30 1.95 65 P BLUE REFLECTANCE (DIRECTIONAL), PHOTOVOLT

L31 7 0 95.51 75.35 -.78 .07 1. 16 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS (GE), S-l L132 0 95.62 76. 17 -.03 .43 .79 65N BLUE REFLECTANCE ( DIRECTIONAL ), TECHNIDYNE/DI ANO/M. S. , S- L28S 0 95.62 75.84 -.31 .24 1.17 65N BLUE REFLECTANCE ( DIRECTIONAL), TECHNIDYNE/DIANO/M. S. , S- L19 0C e 95.66 75.45 -.61 -.00 .85 65A BLUE REFLECTANCE (DIRECTIONAL), MARTIN SWEBTS (ACBT),S-2

L210M 6 95.74 75.94 -.17 .20 1.38 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS ( GE ), S-l

L5 23 6 95.74 75.66 -.40 .05 .80 65N BLUE REFLECTANCE ( DIRECTIONAL ), TECHNIDYNE/DIANO/M. S. , S- L27 8 95.81 75.87 -. 18 .11 2. 16 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L2S9 0 95.81 75. 75 -.28 .04 1.43 65M BLUB REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS (GE), S-l L565 0 95.84 75.65 -.35 -.04 .86 65A BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS (ACBT 1,3-2 L260 95.85 75.92 -.11 .10 1.21 65P BLUE REFLECTANCE (DIRECTIONAL ), PHOTO VOLT L256 95.86 75.26 -. 66 -.27 .96 65H BLUE REFLECTANCE ( DIRECTIONAL ), HUNTER

L241 95.96 76.42 .36 .29 .86 651 BLUE REFLECTANCE (DIRECTIONAL ), BUNTER D25D2A

L21 ON 0 56.00 76.41 .37 .25 .79 65N BLUE REFLECTANCE (DIRECTIONAL), TECHNIDYNE/DIANO/M. S. , S- L232 56.00 77.37 1. 18 .78 .90 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L275 0 96.02 76.24 .24 .13 1. 28 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS ( GE ). S-l L249 96.02 77. 1

.97 .61 .97 65P BLUE REFLECTANCE ( DIRECTIONAL), PHOTOVOLT

L22 5 0 56.04 75.74 -. 17 -.16 1.19 65 N BLUE REFLECTANCE ( DIRECTIONAL ), TECHNIDYNE/DIANO/M. S. , S- L26 8 0 96.10 76.26 .30 .08 .73 65N BLUE REFLECTANCE (DIRECTIONAL), TECHNIDYNB/DIANO/M. S. , S- L308 0 96.10 76.49 .49 .21 .64 65N BLUE REFLECTANCB ( DIRECTIONAL ), TECHNIDYNE/DIANO/M. S. , SLI 08 0 96.15 75.92 .05 -.15 1.09 65M BLUE REFLECTANCE ( DIRECTIONAL). MARTIN SWEETS (GE), S-l L598 0 96. 16 75.89 .03 -. 18 .87 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWEETS (GE), S-l L315 0 96.22 76.30 .40 -.00 1.06 65N BLUE REFLECTANCE ( DIRECTIONAL ), TECHNIDYNE/DIANO/M. S. , S-< L224 96.24 76.56 .63 . 13 .67 65H BLUE REFLECTANCE ( DIRECTIONAL ), HUNTBR

L564 96.25 78.00 1.84 .92 1.95 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L543 0 96.31 76. 36 .51 -.04 1.14 65M BLUE REFLECTANCE ( DIRECTIONAL). MARTIN SWEETS (GE), S-l

LI 22 0 96.39 76.02 .27 -.29 .84 65M BLUE REFLECTANCE ( DIRECTIONAL ), MARTIN SWBETS (GE), S-l L692 0 96.40 76.36 .55 -.11 .92 65N BLUE REFLECTANCE (DIRECTIONAL), TECHNIDYNB/DIANO/M. S. , S-< L636 • 96.54 75.46 -.12 -.73 1.92 6511 BLUE REFLECTANCE (DIRECTIONAL), MARTIN SWEETS ( GE ). S-l L3 1 2 96.56 78.37 2.32 .86 4.09 65P BLUE REFLECTANCE (DIRECTIONAL), FHOTOVOLT

L69 8 56.60 76.40 .70 -.26 1.45 651 BLUE REFLECTANCE (DIRECTIONAL). HUNTER D25D2A

LI 05 96.77 76.64 .99 -.27 1.09 65 X BLUE REFLECTANCE (DIRECTIONAL), HUNTER D25D2M

L562 97.00 81.50 5.17 2.23 .00 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L158 * 97.04 77.29 1.68 -.13 .78 65N BLUE REFLECTANCE ( DIRECTIONAL ), TECHNIDYNB/DIANO/M. S. . S-< L213 97.07 76. 19 .78 -.77 .68 65T BLUE REFLECTANCE ( DIRECTIONAL ); HUNTBR D25D2M

L617 97. 15 77.60 2.00 -.05 .58 65G BLUE REFLECTANCE (DIRECTIONAL), GARDNER

L673R 0 97.56 76.01 .90 -1.28 .71 65N BLUE REFLECTANCE (DIRECTIONAL), TECHNIDYNE/DIANO/M. S. , S—

L219 57.76 77.75 2.46 -.48 .51 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L223 97.81 77.30 2. 12 -.77 .78 65G BLUE REFLECTANCE ( DIRECTIONAL ), GARDNER

L442 98.12 75.45 .75 -2.06 .73 65T BLUE REFLECTANCE ( DIRECTIONAL ), BUNTER D25D2M

L626 98.65 78.89 3. 90 -.59 1.13 65 P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT

L591 98.68 75.86 1.40 -2. 29 .85 65H BLUE REFLECTANCE ( DIRECTIONAL ), HUNTER

L695 98.75 78. 06 3.27 -1.13 2.74 65 P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT L339 98.82 79.00 4.09 -.68 .49 65 P BLUE REFLECTANCE ( DIRECTIONAL ), FHOTOVOLT

L321 1 00.00 79.50 5. 16 -1.38 .00 65P BLUE REFLECTANCE ( DIRECTIONAL ), PHOTOVOLT GMEANS: 96.00 75.96

95* ELLIPSE: 1.06 .67

1.00 WITH GAMMA - 56 DEGREES

35
PERCENT

75-0

75-4

75-8

76-2

76.6

77.

BLUE REFLECTANCE, DIRECTIONAL

SAMPLE E79 = 96-00 PERCENT SAMPLE J98 = 75.96 PERCENT

36
REPORT NO. 600 TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS 165-2 TABLE 1 DIFFUSE BLUE REFLECTANCE IN PERCENT (GLOSS TRAP)

TAPPI SUGGESTED METHOD T525 SU-72. BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 8 LAB E79 116 GRAMS PER SQUARE METER J98 89 GRAMS PER SQUARE METER

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

LlOO 97.99 1.56 2.05 .12 1.73 75.86 .03 .06 .09 .73 65F 0 LlOO

LI 21 57.27 .e4 1.10 .10 1. 52 76. 76 .93 1.75 .18 1.42 65E 0 L121 L136 56.73 .29 .39 .05 .69 76.41 .57 1. 08 .14 1.10 65F 0 LI 36

LI 50 97,00 .57 .75 .08 1. 11 75.21 -.63 -1. 18 .18 1.43 65Q 0 LI 50

LI 70 95.31 -1.12 -1.47 .04 .52 75.41 -.42 -.79 .10 .78 65B 6 L170

LI @2 96. 12 -.21 -.41 .07 1.05 75.64 -.20 -. 37 .16 1.23 65F 0 LI 82 L210K 95.77 —.66 -.87 .11 1.57 77. 13 1.30 2.45 .14 1. 10 6SK O L210K

L236 96.74 .30 .40 .06 .86 75.51 -.32 -.61 .12 .98 65F © L236

L24 2 56.68 .24 .32 .05 .69 75.61 -.22 -.42 • 11 .39 65F © L242

L250T 56.83 .40 .52 .09 1.32 76. 10 .27 .51 .10 .02 65F 6 L250T L280 96.29 -. 14 -.16 • 08 1. 11 75.78 -.05 -.09 .21 1.64 650 0 L280 L313 56.62 •>19 .25 .05 .68 76.33 .49 .93 .12 .94 65K 0 L313

L32 5 55.35 -1.08 -1.42 .10 1.47 75.77 -.06 -.11 .13 1.04 65F O L3 25 L446 56. 10 -.34 -.44 .05 .70 75.24 -.60 -1. 12 .05 .40 65F 0 L446 L573 57.56 1.13 1.48 .00 . 00 75.70 -. 13 -.25 .07 .56 65F 0 L573

L575 95.38 -1.06 -1.39 .05 .77 75.81 -.02 -. 04 .13 .99 65F 0 L575

L59 8 56.30 -.14 -.18 .08 1.11 75.33 -.51 -. 96 .13 1.03 65K 0 L596

L660 95.76 -.67 -.89 .07 1.09 75.40 -.43 -.82 .12 .92 65K 0 L6 80

GR. MEAN • 96.43 PERCENT GRAND MEAN - 75.83 PERCENT TEST DETERMINATIONS * 8 SD MEANS - .76 PERCENT SD OF MEANS - .53 PERCENT 18 LABS IN GRAND MEANS AVERAGE SDR " .07 PERCENT AVERAGE SDR - .13 PERCENT

L289 55.62 -.81 -1.06 .07 1 • 04 76.07 C\J • .45 *13 1.01 6 56 L289 TOTAL NUMBER OF LABORATORIES REPORTING • 19

Best values: E79 96.5 + 1..2 percent

J98 75.7 + 0.9 percent

REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T65-2 TABLE 2 DIFFUSE BLUE REFLECTANCE IN PERCENT (GLOSS TRAP)

TAPPI SUGGESTED METBOD T525 SU-72. BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND O DEG. OBSERVATION)

MBANS COORDINATES AVG

CODE F E79 J98 MAJOR MINOR B« SDR VAR PR0PE]RTY TEST IN!STRUMENT-'—CONDITK9NS L170 0 95.31 75.41 -1.17 -.23 • 65 65 B DIFFUSE REFLECTANCE, ELREPH0. GL. TRAP, NBS ABSOLUTE BASE 1325 0 95.35 75.77 -1.08 .12 1 • 26 65F DIFFUSE REFLECTANCE, ELREPHO, GL. TRAP, NRC-PTB ABSOLUTE BASE

L575 0 95.38 75. 81 -1.05 .15 • 98 65F DIFFUSE REFLECTANCE, ELREPHO, GL.TSAP, NRC-PTB ABSOLUTE BASE

L269 95.62 76.07 -.76 .37 1 • 02 656 DIFFUSE REFLECTANCE, ELREPHO. GL. TRAP, SPECIFIC CALIBRATION

L68 0 0 95. 76 75.40 -. 74 -.32 U 01 65K DIFFUSE REFLECTANCE, ELREPH0, GL. TRAP, MG6 ( ZBISS ) BASE

L21 OK 0 95.77 77. 13 -.44 1.39 i «34 65K DIFFUSE REFLECTANCE, ELREPH0. GL.TBAP, MGO ( ZEISS ) BASE

L44 6 0 96.10 75.24 -. 43 -.53 o 55 65F DIFFUSE REFLECTANCE, ELREPH0’, GL. TRAP

,

NRC-PTB ABSOLUTE BASE

LI 82 0 96.12 75.64 -*34 -.14 1.14 65F DIFFUSE REFLECTANCE, ELREPH0. GL.TRAP, NRC-PTB ABSOLUTE BASE

L28 0 0 96.29 75.78 -. 15 -.03 1« 38 650 DIFFUSE REFLECTANCE, ELREPH0, GL. TRAP, ZEISS ABSOLUTE BASE

L59 8 0 96.30 75.33 -.22 -.48 1.07 65K DIFFUSE REFLECTANCE, ELREPH0. GL.TRAP, MG0 (ZEISS) BASE L313 0 96.62 76.33 .27 .46 • 81 65K DIFFUSE REFLECTANCE, EL REP HO, GL.TRAP. MG0 (ZEISS) BASE L242 0 96.68 75.61 .20 -.26 • 79 65F DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP, NRC-PTB ABSOLUTE BASE

LI 36 0 96.73 76.41 .38 .52 • 90 65F DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP, NRC-PTB ABSOLUTE BASE

L236 0 96.74 75.51 .25 -.37 • 92 65F DIFFUSE REFLECTANCE, ELREPH0, GL. TRAP, NRC-PTB ABSOLUTE BASE

L250T 0 96.83 76. 10 .43 .20 1.07 65F DIFFUSE REFLECTANCE, ELREPB0, GL.TRAP, NRC-PTB ABSOLUTE BASE

LI 5 0 0 97.00 75.21 .46 -.7 1 1.27 65Q DIFFUSE REFLECTANCE, BLREPH0, GL.TRAP, ZEISS ABSOLUTE BASE

Li 20 97.27 76.76 .98 .78 1.47 65K DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP, MG0 (ZEISS) BASE L573 0 97.56 75. 70 1.09 -.32 • 28 65F DIFFUSE REFLECTANCE, ELREPH0, GL. TRAP , NRC-PTB ABSOLUTE BASE

LlOO 0 97.99 75.86 1.54 -.23 1« 23 65F DIFFUSE REFLECTANCE, ELREPH0, GL.TRAP, NRC-PTB ABSOLUTE BASE

GMEANS

96.43 75.83 1.00 95% ELLIPSE: 2. 13 1.45 WITH GAMMA - 9 DEGREES

37
PERCENT

BLUE REFLECTANCE, DIFFUSE, WITH TRAP

SAMPLE E79 = 96.4 PERCENT SAMPLE J98 = 75.8 PERCENT

j i i i i

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“7 ANALYSIS T65-2

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SAMPLE E79

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94.0 95.0 96-0 97.0 99.0

PERCENT

98.0

38
REPOST NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS 165-3 TABLE 1 DIFFUSE BLUE REFLECTANCE IN PERCENT (NO GLOSS TRAP)

TAPPI SUGGESTED METHOD 1525 SU-72, BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

SAMPLE PRINTING SAMPLE PRINTING TEST D. • 8 LAB E79 116 GRAMS PER SQUARE METER J98 89 GRAMS1 PER SQUARE MBTER

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

LI IS 94.98 -.06 -.05 .£1 1. 93 76.3? -.25 -. 28 .18 1.66 65E O LI IS

LI 52 94. 19 -.85 -.75 .09 . 83 76.48 -.13 -. 15 .08 .78 65E O L152

LI 57 97.49 2. 46 2. 18 .08 .78 77.28 .66 .76 .06 .60 65E O LI 57

LI 6 1 94.69 -.35 -.31 .04 .35 77.07 .46 .52 .08 .73 6 5E 0 L161 L173A 93.99 -1.04 -.93 .07 .66 76. 17 -.44 -.51 .08 .71 65E 0 L173A

LI 94 93.81 -1.23 *1.09 .07 .65 77.68 1.07 1.22 .07 .66 65E 0 LI 94 L219 96.41 1.37 1.22 .13 1.23 77. 14 .53 .60 .12 1.09 65E 0 L219

L23 8A 94.42 -.62 -.55 .00 . 00 77.02 .40 .46 .08 .71 65E O L238A

L241 95.23 .19 .17 .15 1.36 75.47 -1. 14 -1.30 .20 1.87 65E O L241

L24 4 95.33 .29 .26 .13 1.25 77. 11 .50 .57 .05 .44 65D O L244

L251 94.69 -.35 -.31 .07 .66 76.43 -.18 -.21 .05 .49 65E O L251 L255 96.32 1.28 1.14 .09 . 85 77.97 1.35 1.54 .11 1.08 65D 0 L255

L30S 92.72 -2.32 -2.06 .18 1.73 74.21 -2.41 -2.74 • 22 2.03 65D * L305

L30 9 95.71 • 6e .60 • 03 .31 77.24 .63 .71 .15 1.39 65J O L309 L360 94.98 -.06 -;o5 .09 . 86 76.76 .14 . 16 .15 1.46 65E 0 L360 L384 96.21 1.18 1.04 .16 1.54 76.67 .06 .07 .09 .83 65S 0 L364 L484 95.30 .26 .23 .34 3.22 75.65 -.97 -1. 10 .17 1.64 65E O L4 84 L565 94.20 -.84 -.74 .05 .50 76.34 -.28 -.32 .09 .86 65W O L565

GR. MEAN * 95.04 PEHCENI GRAND MEAN » 76.62 PERCENT TEST DETERMINATIONS - 8 SD MEANS - 1. 13 PERCENT SD OF MEANS * .88 PERCENT 18 LASS IN GRAND MEANS

AVERAGE SDR - .11 PERCENT AVERAGE SDR • .11 PERCENT

TOTAL NUMBER OF LAECRATOR IES REPORTING • 18

Best values: E79 95.0 + 1.8 percent

J98 76.7 + 1.3 percent

REPORT NO. 60G TAPPI COLLABORATI VE REFERENCE PROGRAM JUNE 1979 ANALYSIS 165-3 TABLE 2 DIFFUSE BLUE REFLECTANCE IN PERCENT (NO GLOSS TRAP)

TAPPI SUGGESTED METHOD T525 SU-72. BRIGHTNESS OF PULP (DIFFUSE ILLUMINATION AND 0 DEG. OBSERVATION)

LAB C6DE F MEANS

E79 J9 8 COORDINATESMAJOR MINOR AVG

8® SDR VAR PROPERTY—-TEST INSTRUMENT CONDITIONS

L305 * 92.72 74.21 -3.25 -.79 1*88 65D DIFFUSE REFLECTANCE

,

EL REP HO. N© TRAP. NRC-PTB ABSOLUTE

LI 94 © 93.81 77.68 -.47 1.56 • 65 65E DIFFUSE REFLECTANCE. EL SEP HO, N© TRAP. MGO (ZEISS) BASE

L173A © 93.99 76. 17 -1. 12 .18 • 69 65 E DIFFUSE REFLECTANCE. BLREPHO, N© TRAP. MGO ( ZEISS ) BASE

LI 52 © 94.19 76. 4 8 -.78 .34 • 61 65E DIFFUSE REFLECTANCE. ELREPHO, N© TRAP, MGO (ZEISS) BASE

L565 © 94.20 76. 34 -.86 .21 • 68 65W DIFFUSE REFLECTANCE. ELREPHO, N© TRAP, NBS MGO BASE

L238A © 94.42 77.02 -.31 .67 • 35 65E DIFFUSE REFLECTANCE. ELREPHO, N© TRAP, MGO ( ZEISS ) BASE L25

0 94.69 76.43 -.39 .03 • 57 65E DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, MGO (ZEISS) BASE

LI 6 1 © 94.69 77. 07 -.05 .57 • 54 65E DIFFUSE REFLECTANCE. ELREPHO, N© TRAP , MGO (ZEISS) BASE

L36 0 © 94.98 76.76 .02 .15 U 16 65E DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, MGO ( ZEISS ) BASE

LI 15 © 94.98 76.37 -.18 -.17 1« 00 65E DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, MGO ( ZEISS ) BASE

L240 95.23 75.47 -. 45 -1.07 1«62 65E DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, MGO ( ZEISS ) BASE L484 0 95.30 75.65 -.29 -.96 2# 43 65E DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, MGO (ZEISS) BASE

L244 © 95.33 77. 1

.51 .26 • 65 65D DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, NRC-PTB ABSOLUTE

L309 0 95.71 77.24 .91 .17 • 85 65J DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, NBS ABSOLUTE

L384 © 96.21 76.67 1.03 -.58 1 • 1 9 65S DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, ABSOLUTE-UNKNOWN BASE

L255 0 96 .32 77.97 1.81 .45 • 96 65D DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, NRC-PTB ABSOLUTE

L219 © 96.41 77. 14 1.44 -.29 1« 16 65E DIFFUSE REFLECTANCE, ELREPHO, N© TRAP, MGO (ZEISS) BASE L157 © 97.49 77.28 2.43 -.75 • 69 65 E DIFFUSE REFLECTANCE. ELREPHO, N© TRAP, MGO (ZEISS) BASE GMEANS: 95.04 76.62

95« ELLIPSE: 3. 52 1. 84 uooHITH GAMMA - 32 DEGREES

39
PERCENT

BLUE REFLECTANCE. DIFFUSE. N0 TRAP

SAMPLE E79 = 95.0 PERCENT

l l 1 SAMPLE J98 = 76.6 PERCENT

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”0 ANALYSIS T65-3

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SAMPLE E79

91 92 93 94 95 96

PERCENT

97 98 99

40
REPORT NO. 60G TAPPI COLLABORATI VE REFERENCE PROGRAM ANALYSIS 175-1 TABLE 1 SPECULAR GLOSS AT 75 DEGREES, IN GLOSS UNITS

TAPPI STANDARD T4SO OS-78, SPECULAR GLOSS OF PAPER AND PAPERBOARD AT 75 DEGREES

JUNE 1979

LAB SAMPLE

E92

C GATED PRINTING

167 GRAMS PER SQUARE METER

SAMPLE G05 COATED DULL

116 GRAMS PER SQUARE METBR

TEST D. ' 10 CODE MEAN DEV N* DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

L106 49*58 .35 • 22 .67 .73 37.18 -.64 -.38 .98 . 85 75H 6 Lioe

LI 2 1 50*62 1.39 . 86 1.31 1.42 37.93 .11 .07 1.48 1.29 75E 0 Ll 2

LI 22 48*63 -.40 -.24 .92 1.00 37.32 -.50 -.29 1.49 1.30 75H 6 L 1 22

LI 28 50* 10 .87 .54 .57 .62 36.50 -1.32 -.78 1.84 1.61 75G 6 L128

LI 34 48*30 -.93 -.57 1.34 1. 45 37.50 -.32 -. 19 .85 .74 75H e L 1 34

Ll 36 53*48 4.25 2.62 .80 .87 41.41 3.59 2.11 1.52 1.33 75G » L136

LI 49 48*30 -.93 -.57 1.16 1.26 35. 10 -2.72 -1.60 1.45 1.26 75G 0 L 1 49

Ll 53 51*20 1.97 1.22 1.01 1.09 40.50 2.68 1.58 1.33 1. 16 75G 0 L153 L162 £3*71 4.4e 2.77 .71 .77 42.80 4.98 2.93 1.26 1. 10 75G * L162

L173A 47*80 - 1.43 -.88 .79 .86 35.50 -2.32 -1.36 .85 .74 75G 0 L173A

Ll 82 47*44 -1.79 -1. 10 .86 .93 36.72 -1.10 -.65 .91 .80 75H 0 L 1 82

Ll 89 50*25 1.02 .63 .98 1.06 40.20 2.38 1.40 .92 • 80 75P 0 Ll 89 L190C 47.23 -2.00 -1.23 .85 .92 36.38 -1.44 -.85 1.28 1. 12 75G © L190C

L190R 49.72 .49 .30 .75 .81 38.21 .39 .23 1.00 ,87 75G 0 L190R L206 48*33 -.90 -.55 .86 .93 37.58 -.24 -.14 1.03 .90 75H 0 L206 L210 50. 19 .96 .59 1.23 1.34 37. 44 -.38 -.22 1.05 .91 75H 0 L2 10 L21 1 49.48 .25 . 16 .98 1. 06 37.45 -.37 -. 22 1.79 1.57 75H 0 L21

L212 51*40 2. 17 1.34 .52 .56 4 2.90 5.08 2.99 .99 .87 75P X L212

L2 13 49*40 .17 .11 1.07 1. 17 37.30 -.52 -.30 .95 .83 75H 0 L213

L223 48*72 -.51 -.31 .69 .75 38.88 1.06 .62 1.57 1.37 75H 0 L223

L224 4 8*20 -1.03 -.63 .63 .69 35.90 -1.92 -1. 13 1.10 .96 75H 0 L224 L230 49*20 -.03 -.02 1.23 1.33 36.60 -1.22 -. 72 1.51 1.31 75H 0 L230

L25 1 47.90 -1.33 -.82 .46 .50 36. 75 -1.07 -. 63 .92 .80 75G 0 L251 L255 49*80 .57 .35 .63 .69 38.50 .68 .40 1.08 .94 75G 0 L255

L256 53.37 4.14 2.56 .69 .75 42.00 4. 18 2.46 .46 .40 75H «- L256

L2 59 51*15 1.92 1.19 .97 1.06 39.18 1.36 .80 1.62 1.41 75H 0 L2 59 L262 49.95 .72 .45 .80 .87 38.60 .78 .46 .97 .84 75K 6 L262 L274 53.80 4.57 2.82 .42 .46 47.00 9. 18 5.40 .82 .71 75P * L274 L277A 49*14 -.OS -.05 1.16 1.26 38.07 .25 . is 1.05 .92 75H 0 L277A

L27 7B 46.95 -•2e -.17 1.23 1. 34 37.96 .14 . 08 1.26 1. 10 75H 0 L277B

L27 8 48*60 -.63 -.39 .39 .43 36.98 -.84 -.49 .50 .44 75G 0 L278

L279 49*50 .27 .17 .85 .92 35. 80 -2.02 -1. 19 1.48 1.29 75G 0 L279 L286 49.33 . 10 .06 .91 .98 38.68 .86 .51 1.0S .92 75H 0 L288

L291 48.99 -.24 -.15 .85 .92 37. ll -.71 -.42 1.07 .94 75H 0 L291

L31 5 48.70 -.53 -.32 1.70 1.85 38.70 .88 .52 1.34 1. 17 75G 0 L315

L31 7 49*20 -.03 -.02 1.23 1.33 37.90 .08 .05 1.20 1.04 75H 0 L317

L321 51*20 1.97 1.22 .92 1.00 39.20 1.38 .81 1.14 .99 7SG 0 L321 L323 47.69 -1.54 -.95 1.34 1. 45 36.14 -1.68 -.99 1.37 1.19 75H 0 L323

L32 8 48.55 -.68 -.42 .60 .65 37.06 -.76 -.45 .95 .82 75H 0 L328 L339 53.80 4.57 2.82 1. 18 1.28 44.90 7.08 4. 16 1.71 1.49 75P * L339

L372 50*00 .77 .48 .00 .00 39.00 1. 18 .69 1.05 .92 75B 0 L372 L388 50.15 .92 .57 1.40 1. 52 40.20 2.38 1.40 1.01 .88 75P 0 L388 L396 49*60 .37 .23 1.17 1.27 38. 30 .48 .28 1.16 1.01 75G 0 L396

L456 48*33 -.90 -.55 .90 .98 37.71 -.11 -.06 1.10 .96 75H © L456 L483 49*4 0 .17 • 1

.99 1.07 37.26 -.56 -.33 .96 . 86 75H 0 L483 L564 48*60 -.63 -.39 1.17 1.27 41.50 3.68 2. 16 1.08 .94 75P X L564 L573 49* 10 -.13 -.08 1.29 1. 40 36.90 -.92 -.54 .99 .87 75G 0 L573

L583 49*83 .60 .37 .94 1. 02 39.24 1.42 .84 1.27 1.11 75H 0 L583

L592 46*05 -3.ie -1.96 .97 1.05 34.39 -3.43 -2.02 .53 .46 7SH 0 L592

L59 8 48*02 -1.21 -.74 .74 .80 36.79 -1.03 -.60 .98 .86 75H 0 L598 L643 48*34 -.89 -.55 .63 .69 38.73 .91 .54 1.34 1. 17 75H 0 L643

L668 45*42 -3.81 -2.35 1.02 1. 11 36.42 -1.40 -. 82 1.33 1. 16 75G * L668 L670 49*98 .75 .46 1.13 1.23 38.75 .93 .55 1.18 1.03 7SH 0 L670 L688 46*50 -2.73 -1.68 .80 .87 35. 19 -2.63 -1.55 . 80 .70 75G 0 L688

L697 47.73 -1.50 -.92 .40 .43 36.85 -.97 -.57 1. 10 .96 75H 0 L697

GR* MEAN - 49.23 GLOSS UNITS GRAND MEAN - 37. 82 GLOSS UNITS TEST DETERMINATIONS - 10 SD MEANS - 1.62 GLOSS UNITS AVERAGE SDR

SD OF MEANS -

- .92 GLOSS UNITS

1.70 GLOSS UNITS

AVERAGE SDR - 1. 15 51 LABS IN GRAND

GLOSS UNITS MEANS

L250 47,70 -1,53 -.94 ,48 .52

TOTAL NUMBER OF LABORATORIES REPORTING - 56 37.60 -.22 -.13 .84 .74 75Q L250

Best values: E92 49+3 gloss units

G05 37+3 gloss units

The following laboratories were omitted from the grand means because of extreme test results: 274

339. 41
REPORT NO. 600 TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS 175-1 TABLE 2 SPECULAR OLOSS AT 75 DEGREES,, IN GLOSS UNITS

TAPPI STANDARD 3460 OS-76, SPECULAR GLOSS OF PAPER AND PAPERBOARD AT 75 DEGREES

LAB MEANS COORDINATES AVG CODE F E92 cos MAJOR MINOR R. SDR VAR PROPERTY—TEST INSTRUMENT— -CONDITIONS

L66S • 45.42 36.42 -3.63 1.81 1. 13 75G SPECULAR GLOSS <75 DEGREE ), GARDNER

L592 O 46.05 34.39 -4.67 -.04 .76 75H SPECULAR GLOSS <75 DEGREE ). HUNTER

L668 0 46.50 35.19 -3. 78 .18 .79 75G SPECULAR GLOSS <75 DEGREE ), GARDNER

L190C 0 47.23 36.38 -2. 42 .46 1.02 75G SPECULAR GLOSS <75 DEGREE ), GARDNER

LI 62 0 47.44 36.72 -2. 03 .55 .86 75B SPECULAR OLOSS <75 DEGREE), HUNTER

L323 0 47.69 36.14 -2.28 -.03 1.32 75H SPECULAR GLOSS <75 DEGREE ), HUNTER

L250 47.70 37.60 -1.21 .96 .63 75Q SPECULAR GLOSS < 75 DEGREE ), PH0T0V0LT, 20 C. 65% RB L697 0 47.73 36.85 -1.73 .42 .70 75H SPECULAR GLOSS <75 DEGREE), HUNTER

LI 73A 0 47.80 35.50 -2.67 -.55 .80 75G SPECULAR GLOSS <75 DEGREE ), GARDNER

L251 0 47.90 36. 7S -1.69 .23 .65 75G SPECULAR GLOSS <75 DEGREE), GARDNER

LS9 6 0 48.02 36.79 -1.58 , 17 .83 75 H SPECULAR GLOSS <75 DEGREE), HUNTER

L224 0 48.20 35.90 -2. 10 -. 57 .82 75 B SPECULAR GLOSS <75 DEGREE), HUNTER L149 0 48.30 35. 10 -2.61 -1.19 1.26 75G SPECULAR GLOSS <75 DEGREE), GARDNER

L134 0 48.30 37.50 -.87 .46 1. 1 0 75H SPECULAR GLOSS <75 DEGREE), HUNTER

L456 0 48.33 37.71 -.69 .58 .97 75H SPECULAR GLOSS <75 DEGREE ), HUNTER

L206 0 4 8.33 37.58 -. 79 .49 .92 75H SPECULAR GLOSS <75 DEGREE), HUNTER

L643 a 48.34 38. 73 .05 1.27 .93 75H SPECULAR GLOSS <75 DEGREE ), HUNTER

L32 6 0 48.55 37. 06 -1,02 -.03 .74 75H SPECULAR GLOSS <75 DEGREE ), BUNTER L276 0 48.60 36.9 8 -1.04 -.12 .43 75G SPECULAR GLOSS <75 DEGREE ), GARDNER

L564 X 48.60 41.50 2.25 2.98 1.11 75P SPECULAR GLOSS <75 DEGREE ), PHOTOVOLT

L31S 0 48.70 38.70 .28 .99 1.51 750 SPECULAR GLOSS <75 DEGREE), GARDNER

L223 0 48.72 38.88 .42 1. 10 1.06 75B SPECULAR GLOSS <75 DEGREE ), HUNTER

L122 o 48.83 37.32 -.63 -.05 1. 15 75H SPECULAR OLOSS < 75 DEGREE ), HUNTER

L277B 0 48.95 37.96 -.09 .30 1.22 75H SPECULAR GLOSS <75 DEGREE ), HUNTER

L291 0 48.99 37. 1 1 -.68 -.31 .93 7SH SPECULAR OLOSS <75 DEGREE ), HUNTER

LS73 0 49.10 36.90 -.76 -.54 1. 13 75G SPECULAR OLOSS <75 DEGREE), GARDNER

L277A 0 49.14 38. C7 .12 • 24 1.09 75H SPECULAR OLOSS <75 DEGREE ), BUNTER

L23 0 0 49.20 36, 60 -.90 -.82 1.32 75H SPECULAR OLOSS < 75 DEGREE ), HUNTER

L3 1 7 0 49.20 37.90 .04 .07 1.19 75H SPECULAR GLOSS <75 DEGREE ), BUNTER

L2S6 0 49.33 38.68 .70 .52 .95 75H SPECULAR GLOSS <75 DEGREE ), HUNTER

L4 63 0 49.40 37.26 -. 29 -.51 .96 75H SPECULAR OLOSS <75 DEGREE), BUNTER

L213 0 49.40 37.30 -.26 -.48 1.00 75 H SPECULAR OLOSS <75 DEGREE ), HUNTER

L21 1 0 49.48 37.45 -.09 -.44 1.31 75H SPECULAR GLOSS <75 DEGREE ), HUNTER

L279 0 49.50 35.80 •1.28 -1.58 1.11 75G SPECULAR GLOSS <75 DEGREE), GARDNER

L106 0 49.58 37, 18 -.22 -.70 .79 75E SPECULAR GLOSS <75 DEGREE ), HUNTER

L396 0 49.60 38.30 .61 .06 1.14 75G SPECULAR GLOSS <75 DEGREE ), GARDNER

L190R 0 49.72 38.21 .62 -.09 .84 750 SPECULAR GLOSS <75 DEGREE ), GARDNER

L255 0 49.80 38.50 .89 .05 .81 750 SPECULAR GLOSS < 75 DEGREE), GARDNER

L563 o 49.83 39.24 1.45 .54 1.06 75B SPECULAR GLOSS <75 DEGREE), HUNTER

L262 0 49.95 38.60 1.06 .01 .85 75K SPECULAR GLOSS < 75 DEGREE), GAERTNER < K-C TYPE ) L67 0 0 49.98 38.75 1. 19 .09 1.13 75B SPECULAR GLOSS <75 DEGREE), HUNTER

L372 0 50.00 39.00 1.39 .25 .46 75B SPECULAR GLOSS <75 DEGREE S, BAUSCH - LOMB

LI 28 0 50.10 36.50 -. 36 -1.54 1.11 750 SPECULAR GLOSS <75 DEGREE ), GARDNER use 0 50. IS 40.20 2.37 .96 1.20 75P SPECULAR OLOSS <75 DEGREE ), PHOTOVOLT

L21 0 0 50.19 37.44 .39 -.96 1. 13 75B SPECULAR GLOSS <75 DEGREE ), HUNTER

LI 89 0 50.25 40.20 2.43 .69 .93 75 P SPECULAR OLOSS <75 DEGREE), PHOTOVOLT

LI 2 1 0 50.62 37.93 1.04 -.94 1.36 75H SPECULAR GLOSS <75 DEGREE ), BUNTER L2S9 & 51.15 39. 18 2.31 -.46 1.23 75 H SPECULAR GLOSS <75 DEGREE ), HUNTER

LI 53 0 51.20 40,50 3.30 .40 1. 13 75G SPECULAR GLOSS <75 DEGREE ), GARDNER

L321 0 51.20 39.20 2.36 -.49 .99 750 SPECULAR GLOSS <75 DEGREE ), GARDNER

L212 X 51.40 42.90 5. 19 1.91 .71 75P SPECULAR GLOSS < 75 DEGREE ), PHOTOVOLT

L256 • 53.37 42.00 5.88 -.14 .56 75B SPECULAR GLOSS < 75 DEGREE ), BUNTER

LI 36 • 53.48 41.41 5. 53 -.63 1.10 75G SPECULAR GLOSS <75 DEGREE), GARDNER

LI 62 » 53.71 42. eo 6.70 . 16 .93 750 SPECULAR GLOSS <75 DEGREE ), GARDNER

L339 * 53.80 44.90 8.29 1.53 1.39 75P SPECULAR GLOSS <75 DEGREE ), PHOTOVOLT

L2 74 * 53.80 47.00 9.82 2.97 .59 75 P SPECULAR GLOSS < 75 DEGREE), PHOTOVOLT

GMEANS: 49.23 37.82 1.00 95% ELLIPSE: 5.74 1.74 WITH GAM&A - 46 DEGREES

42
GL0SS

UNITS

SPECULAR GLOSS, 75 DEGREE

SAMPLE E92 = 49.2 GLOSS UNITS SAMPLE G05 = 37-8 GLOSS UNITS

GLOSS UNITS

43
REPORT N0. 600 TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T90-1 TABLE 1 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T41 1 OS- 76 SAMPLE PRINTING SAMPLE PRINTING TEST D. - 10 LAB J66 93 OHAMS PER SQUARE METER J82 73 GRAMS PER SQUARE METER

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

L100 6,476 .139 1.29 .063 .67 2.762 .077 1. 10 .030 .76 90V 0 L100

LI 05 6,446 • 109 1.01 . 125 1.35 2.762 .077 1. 10 .039 .98 90Q 0 LI 05

li i e 6.433 .096 .89 .075 .81 2.713 .028 .40 .013 .33 90Q o LI 18 LI 22 6.220 -.117 -1.09 .094 1.02 2.727 .042 .60 .031 .77 90V 0 LI 22 L123F 6. 535 . 198 1.84 . 075 .80 2. 835 . 150 2. 14 .034 .84 90F 0 L123F

LI 25 6.435 .09 8 .91 .077 .83 2.730 .045 • 64 .047 1.16 90T 0 LI 25 L12S 6.292 — © 045 -.42 .076 .81 2.678 -.007 -. 10 .046 1. 14 90T e L128

LI 53 6. 192 -• 145 -1.35 • 053 .57 2.873 . 188 2.68 .044 1.09 90T X L153

L1S6 6.360 .023 .21 . 052 . 56 2.670 -.015 -.21 .048 1.20 90T 0 LI 58

LI 59 6.342 .005 .05 .096 1.03 2.743 .058 .83 .046 1. 15 90T 0 LI 59 L162 6.310 -.027 -.25 .110 1. 1« 2.720 .035 .50 .063 1.57 90D 0 L162

LI 66 6.210 -.127 -1.18 .063 .68 2.598 -.087 -1.23 .049 1.21 90T 0 LI 66 L173B 6.395 .058 .54 . 076 .82 2.718 .033 .47 .037 .91 90F 0 L173B

LI 74 .006 -6.331 -58.81 .000 .00 .003 -2.682 -38a 14 .009 • 00 90T * LI 74

LI 82 6.336 -.001 -.01 . 055 .59 2.746 .061 .87 .046 1.14 90L 0 LI 82

LI 83 6.507 .17© 1.58 • 102 1. 10 £.721 .036 .51 .036 .90 90T o LI 83

LI 85 6.430 .093 .86 . 125 1.35 2.690 .005 .07 .032 .79 90A 6 L 1 85 L190C 6.200 -. 137 -1.27 . 094 1.02 2.660 -.025 -. 35 .052 1.28 90T 6 L190C

L203A 6.065 -.272 -2.53 . 151 1.63 2.610 -.075 -1.06 .070 1.74 90T • L203A

L203C 6.410 .073 .68 . 152 1.64 2.770 .085 1.21 .098 2.43 90T o L203C

L212 6.4 36 .099 .92 .074 .80 2.695 .010 . 14 .050 1.25 90T o L212

L21 3 6.370 .033 .31 .157 1.69 2.700 .015 .22 .000 .00 90T o L213

L223 6.372 .035 .33 .090 .96 2.740 .055 .78 .027 .66 90V 0 L223

L22 8 6.390 . 053 .49 . 074 .79 2.770 .085 1.21 .048 1.20 90T 0 L228

L233 6.347 .010 .09 .075 .80 2.571 -.114 -1.62 .050 1.24 90Q 0 L233 L238A 6.250 -.087 -.81 .080 .86 2.584 -. 101 -1.43 .030 .73 90T 0 L238A

L241 6.430 .093 .86 . 125 1.35 2.780 .095 1.35 .042 1.05 90T 0 L241 L2420 6.300 -.037 -.34 .088 .95 2.640 -.045 -. 64 .032 . 80 900 0 L2420

L242P 6.324 -.013 -. 12 . 138 1.49 2.596 -.088 - 1.26 .047 1.17 9OP 0 L242P

L249 6.326 -.01 1 -.10 .079 .85 2.671 -.014 -.20 .015 .38 90T 0 L249 L259 6.305 -.032 -.30 .05 1 .55 2.565 -. 120 -1.70 .020 .50 90T 0 L259

L260 6.303 -.034 -.31 .045 .49 2.704 .019 .27 .039 .98 90T 0 L260

L261 6.484 .147 1.37 .080 .87 2.753 .068 .97 .021 .53 90T 0 L261 L262 6.300 -.037 -.34 .053 .57 2.630 -.055 -.78 .042 1.05 90T 0 L262 L274D 6.300 -.037 -.34 .094 1.02 2.760 .075 1.07 .084 2. 10 90D 0 L274D L285 6.431 .094 .87 .129 1.39 2. 720 .035 .50 .041 1.02 9 0T 0 L28S

L291 6.230 -.107 -.99 .082 .89 2.640 -.045 -.64 . 052 1.28 90T 0 L291 L30S 6.330 -.007 -.06 .116 1.25 2.650 -.035 -.50 .082 2.03 90T o L305

L309 6.279 -.058 -.54 .160 1.72 2.670 -.015 -.21 .042 1.04 90T 0 L309

L31 8 6.265 -.072 -.67 .082 .88 2.590 -.095 -1.35 .039 .98 9 0T 0 L318

L320 .006 -6.331 -58.81 .000 .00 .003 -2.682 -38. 14 .000 .00 90T * L320 L323 6.195 -. 142 -1.32 . 055 .59 2.628 -.057 -.81 a 01 8 .45 90T 0 L323

L324 6.270 -.067 -.62 . 123 1.32 2.685 .000 .00 .024 .60 90T 0 L324 L326 6.420 .083 .77 .079 .85 2.715 .030 .43 .024 .60 90T 0 L326

L32 8 6.235 -. 102 -.95 .091 .99 20 665 -. 020 -.28 o 04 1 1.02 90T 0 L328

L331 6.310 -.027 -.25 . 142 1.53 2.619 • 134 1.91 .052 1.30 90T » L331 L339 6.200 -.137 -1.27 . 133 1.44 2® 540 -a 145 -2a 06 .052 1.28 90T 0 L339

L341 6.491 . 154 1.43 .082 . 88 2.743 .058 .83 .035 .87 90T 0 L341 L352 6.358 .02 1 .20 .058 .63 2.736 .051 .73 .066 1.64 90Q o L352 L356 6.222 -.115 -1.07 a 136 1.47 2.558 -.127 -1.80 .042 1.03 90T 6 L356 L358 6.248 -.089 -.83 .094 1.02 2.646 -.039 55 .039 .96 90T o L358

L376 6. 530 . 193 1.79 . 142 1. 53 2.640 —a 045 -.64 .070 1.74 90T • L376

L380 6.290 -.047 -.44 .074 .79 2.720 .035 .50 .042 1.05 90T 0 L380

L382 6.482 . 145 1.35 .092 .99 2.77© .085 1.21 .025 .62 90T 0 L382

L390 6.296 -.041 -.38 .074 .80 2.608 -.077 -1.09 .030 .75 90T 0 L390 L442 6.571 .234 2.17 .074 .80 2.815 . 130 1.85 .030 .74 90V 0 L442 L5S6 6. 36 2 .025 .23 .093 1.00 2.748 .063 .90 .029 .73 90T 0 L556 L557 6.250 -.087 -.81 . 158 1.70 2.640 -.045 64 .070 1.74 90T 0 L557

L57

1

6.280 -.057 -.53 . 140 1.51 2.560 -.125 -1.77 .052 1.28 90V 0 LS71 L575 6.183 -. 154 -1.43 .074 .79 2.665 -.020 -.28 .027 .68 90T 0 L575

L581 6.435 .098 .91 .091 .99 2.700 .015 .22 .04 1 1.02 90T 0 L581 LS8S 6.440 .103 .96 . 135 1. 45 2.690 .005 o 07 .032 .79 90T 0 L585

L626 6.100 -.237 -2.20 .077 .83 2.613 -.072 -1.02 .034 .84 90T 0 L626

L679 6. 190 -. 147 -1.36 .046 .49 2.595 -.090 -1.28 .044 1.09 90T 0 L679

L693 6.356 .019 .18 .115 1.24 2.677 -.008 -.11 .027 .66 90T 0 L693

GRo MEAN - 6.337 MILS GRAND MEAN • 2.685 MILS TEST DETERMINATIONS - 10

S3> 11 ANS • .108 MILS SD OF MEANS • o070 MILS 62 LABS IN GRAND MEANS AVERAGE SDR - © 093 MILS AVERAGE SDF «

o 04 0 MILS U, lEAN •160.96 MICReMETEB GRAND MEAN 1 O' CD © o MICR0METER

44
REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM

ANALYSIS T90-1 TABLE 1 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH

TAPPI STANDARD T41 1 OS-76

JUNE 1979

SAMPLE PRINTING SAMPLE PRINTING TEST D. - 10 LAB J66 93 GRAMS PER SQUARE METER J82 73 GRAMS PER SQUARE METER

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

LI 0 6 6.010 -.327 -3.04 .032 .34 8.000 5.315 75.58 .000 .00 90C LI 06 L203B 6.310 -.027 -.25 . 120 1.29 2.770 .085 1.21 . 106 2.63 90C L203B

L256. 178 -.159 -1.48 .058 .63 2.644 -.041 -.58 .022 .56 90W L2S1 L27AC 6.310 -.027 -.25 .074 .79 2.750 .065 .93 .085 2. 11 90C L274C

L34* 6.200 -. 137 -1.27 . 170 1.83 2.650 -.035 -.50 .053 1.31 90U L344

LA 8 4 6.405 .069 .64 .081 .87 2.728 • 044 .62 .019 .47 90E L4 84 L563 6.550 .213 1.98 .097 1.05 2.780 .095 1.35 .063 1.57 90U L563

L576 6.289 -.048 -.44 . 126 1.36 2.881 . 196 2.79 .047 1. 16 90C L576

L6 16 2.416 -3.921 -36.42 .034 .36 2.740 .055 .78 .097 2.40 90C L616

L684 6.200 -. 137 -1.27 .105 lo 14 2.810 . 125 1.78 .057 1.41 90U L6 84 TOTAL NUMBER OF LABORATORIES REPORTING - 75

Best values: J66 6.33 + 0.17 mils

J82 2.69 + 0.11 mils

Data from the following laboratories appear to be off by a multiplicative factor: 174, 320.

45
REPORT W0* 60G TAFPI COLLABORATIVB REFERENCE PROGRAM JUNE 1979 ANALYSIS T90-1 TABLE 2 THICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T41 1 OS-76 LAB CODE F MEANS

J66 J82 COORDINATES

MAJOR MINOR AVOR. SDB VAR PROPERTY—TEST INSTRUMENT- —CONDITIONS

L320 • • 006 .003 -6.851 .581 .00 90T THICKNESS ( CALIPER ), TMI, MOTOR DRIVEN

LI 74 * • 006 .003 -6.851 .581 .00 90T THICKNESS (CALIPER). TM, MOTOR DRIVEN

L616 * 2.416 2.740 -3.442 1.878 1.38 90C THICKNESS (CALIPER), CADY, HAND DRIVEN

LI 06 « <6® 010 8.000 2. 190 4.854 .17 90C THICKNESS (CALIPER), CADY, HAND DRIVEN L203A • 6.065 2.610 -.275 .061 1.68 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L626 0 6. 100 2.613 -.243 .047 .83 90T THICKNESS (CALIPER), TMI, MOTOR DRI VEN

L2S1 6® 178 2.644 -.160 .038 .59 90W THICKNESS (CALIPER), L • W. MOTOR DRIVEN. 20 C. 65%

L575 0 6. 163 2.66 5 -.145 .054 .73 90T THICKNESS (CALIPER ). TMI, MOTOR DRIVBN

L679 0 6® 190 2.595 -.172 -.01 1 .79 90T THICKNESS ( CALIPER). TMI, MOTOR DRIVEN

LI S3 X 6« 192 2.873 -.040 .234 .83 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L323 0 6. 195 2.628 -. 152 .016 .52 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L684 6.200 2.810 -.063 . 175 1.27 90 U THICKNESS (CALIPER), TMI, HAND DRIVEN

L344 * 6® 200 2.650 -.137 .033 1.57 900 THICKNESS (CALIPER), TMI. HAND DRIVEN

L339 0 6® 200 2.540 -.189 -.064 1.36 90 T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

LI 90C o 6« 200 2.660 -. 133 ® 042 1. 15 90T THICKNESS ( CALIPER), TMI, MOTOR DRIVEN

LI 66 0 6.210 2.598 -.153 -.018 .95 90T THICKNESS ( CALIPER). TMI, MOTOR DRIVEN

LI 22 0 6.220 2.727 -.084 .092 .89 90V THICKNESS (CALIPER), TMI, MOTOR DRIVEN, DIGITIZED

L356 0 6.222 2.558 -.161 -.059 1.25 90T THICKNESS ( CALIPER )

,

TMI, MOTOR DRIVEN

L291 0 6.230 2.640 -.115 .010 1.09 90T THICKNESS < CALIPER ). TMI, MOTOR DRIVEN

L326 0 6.235 2.665 -.099 .030 1.00 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN L358 0 6.246 2.646 -.097 .007 .99 90T THICKNESS ( CALIPER), TMI, MOTOR DRIVEN

L557 0 6.250 2.640 -.098 .001 1.72 90T THICKNESS < CALIPER ), TMI, MOTOR DRIVEN

L238A 0 6.250 2.584 -. 124 -.049 .80 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L318 0 6.26 5 2.590 -.108 -.050 .93 90T THICKNESS (CALIPER). TMI, MOTOR DRIVEN

L324 0 6.270 2.685 -.059 .031 .96 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L309 0 6.279 2.670 -.058 .014 1.38 90T THICKNESS ( CALIPER), TMI, MOTOR DRIVEN

L571 0 6.260 2.560 -.109 -.084 1.40 90V THICKNESS (CALIPER ), TMI, MOTOR DRIVEN, DIGITIZED

L576 * 6.269 2.881 .049 . 196 1.26 90C THICKNESS (CALIPER). CADY, HAND DRIVEN

L380 0 6.290 2.720 -.025 .053 .92 90T THICKNESS < CALIPER ), TMI, MOTOR DRIVEN

LI 28 0 6.292 2.678 -.043 .015 .97 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L390 0 6.296 2.608 -.072 -.049 .77 90T THICKNESS (CALIPER). TMI. MOTOR DRIVEN

L262 0 6.300 2.630 -.058 -.031 .81 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN L274D 0 6.300 2.760 .002 .084 1.56 90D THICKNESS (CALIPER), CADY, MOTOR DRIVEN L2420 0 6.300 2.640 -.054 -.023 .87 900 THICKNESS (CALIPER). MESSMER, MOTOR DRIVEN, BS3983

L260 0 6.303 2.704 -.021 .033 .73 90T THICKNESS (CALIPER), TMI, MOTOR DRIVBN

L2S9 0 6.305 2.565 -.084 -.091 .53 90T THICKNESS ( CALIPER), TMI, MOTOR DRIVEN

L274C 6.310 2.750 .007 .070 1.45 90C THICKNESS ( CALIPER ). CADY, BAND DRIVEN L203B • 6.310 2.770 .016 .088 1.96 90C THICKNESS (CALIPER), CADY, BAND DRIVEN

1331 • 6.310 2.819 .039 . 131 1.42 90T THICKNESS (CALIPER ), TMI, MOTOR DRIVEN

LI 62 0 6.310 2.720 -.007 .044 1.38 90D THICKNESS ( CALIPER), CADY, MOTOR DRIVEN

L242P 0 6.324 2.596 -.053 -.072 1.33 90P THICKNESS (CALIPER), MESSMER, MOTOR DRIVEN, ISe R534 L249 0 6.326 2.671 -.016 -.007 .61 90T THICKNESS (CALIPER). TMI, MOTOR DRIVEN

L30S 0 6.330 2.650 -.022 -.028 1.64 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

LI 82 0 6.336 2.746 .027 .055 .86 90L THICKNESS (CALIPER), L - W, MOTOR DRIVEN

LI 59 0 6.342 2.743 .032 .049 1.09 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN L233 0 6.347 2.571 -.044 -. 105 1.02 90Q THICKNESS (CALIPER), EMVEC0, MOTOR DRIVEN

L693 0 6.356 2.677 .013 -.016 .95 90T THICKNESS ( CALIPER ). TMI, MOTOR DRIVEN

L352 a 6.356 2.736 .043 .035 1. 13 90Q THICKNESS ( CALIPER), EMVEC0, MOTOR DRIVEN

Lise 0 6.36 0 2.670 .014 -.024 .88 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN L556 o 6.362 2.748 .052 . 044 .87 90T THICKNESS ( CALIPER )

.

TMI, MOTOR DRIVEN

L213 0 6.37 0 2.700 .036 -.002 .84 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L223 0 6.372 2.740 .057 .032 .81 90V THICKNESS (CALIPER), TMI. MOTOR DRIVEN. DIGITIZED

L228 0 6.390 2.770 .087 .051 1.00 90T THICKNESS ( CALIPER ), TMI, MOTOR DRIVEN

L173B 0 6.395 2.718 .067 .002 .87 90F THICKNESS ( CALIPER ). FEDERAL, MOTOR DRIVEN

L484 6.405 2.728 .081 .006 .67 90E THICKNESS (CALIPER ), SC HOPPER , HAND DRIVEN

L2 03C 0 6.410 2.770 . 104 .041 2.04 90T THICKNESS ( CALIPER), TMI, MOTOR DRIVEN L326 0 6.420 2.715 .088 -.012 .73 90T THICKNESS (CALIPER ), TMI, MOTOR DRIVEN

LI 85 0 6.430 2.690 . 085 -.039 1.07 90A THICKNESS (CALIPER). AMTHOB. MOTOR DRIVEN

L241 0 6.430 2.780 .127 .041 1.20 90T THICKNESS (CALIPER). TMI, MOTOR DRIVEN L28S 0 6.431 2.720 .100 -.013 1.20 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

LI 1 8 0 6.433 2.713 .098 -.020 .57 90Q THICKNESS (CALIPER). EMVEC0, MOTOR DRIVBN

L581 0 6.435 2.700 .094 -. 032 1.00 90T THICKNESS (CALIPER ), TMI, MOTOR DRIVEN

LI 2 5 0 6.435 2.730 • 1 08 -.006 1.00 90T THICKNESS ( CALIPER ), TMI, MOTOR DRIVEN

L212 0 6.436 2.695 .092 -.037 1.02 90T THICKNESS ( CALIPER >, TMI, MOTOR DRIVEN

L585 0 6. 440 2.690 .094 -. 04 4 1.12 90T THICKNESS ( CALIPER ). TMI, MOTOR DRIVEN

46
REPORT NO. 60G TAPPI COLLABORATIVE BEFERBNCE PROGRAM JUNE 1979 ANALYSIS T90-1 TABLE 2 TBICKNESS (CALIPER), THOUSANDTHS OF AN INCH TAPPI STANDARD T41 1 OS-76 LAB MEANS COORDINATES AVG

CODE F J66 J82 MAJOR MINOR R. SDR VAR PROPERTY— -TEST INSTRUMENT- —CONDITIONS

H 05 0 6*446 2.762 .133 .017 1. 16 90Q THICKNESS (CALIPER ), EMVEC6, MOTOR DRIVEN

L100 0 6*476 2.762 .159 .003 .72 90V THICKNBSS (CALIPER). TMI, MOTOR DRIVEN, DIGITIZED

L382 0 6*482 2.770 • 168 .008 .81 90T THICKNESS (CALIPER). TMI. MOTOR DRIVEN

L261 0 6*464 2.753 . 162 •.008 .70 90T THICKNESS ( CALIPER )

,

TMI, MOTOR DRIVEN

L34 1 0 6*491 2.743 .163 -.020 .88 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

LI 83 0 6.507 2.721 • 167 -.047 1.00 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L376 • 6*530 2.640 .150 -.130 1.63 90T THICKNESS (CALIPER), TMI, MOTOR DRIVEN

L123F 0 6*535 2.835 .245 .040 .82 90F THICKNBSS ( CALIPER ), FEDERAL, MOTOR DRIVEN

L563 6*550 2.780 .233 -.015 1.31 90U THICKNESS ( CALIPBR ), TMI, HAND DRIVEN

L442 0 6.571 2.815 .268 .006 .77 90V THICKNESS (CALIPER), TMI, MOTOR DRI VEN, DIGITI ZED

G MEANS

6.337 2.685 1.00 95* ELLIPSE: .301 . 124 RITH GAMMA * 27 DEGREES

47
MICROMETER

THICKNESS ( CRL I PER )

CO

rco

O'

"vt" o

CM

O'O

O

QD

CD

CD

CD

M-CD

CM

CD

O

CD

SAMPLE J66 = 6.34 MILS SAMPLE J82 - 2.68 MILS

SAMPLE J66 = 161.0 MICROMETER SAMPLE J82 = 68.2 MICROMETER

NILS

i

1 1 i 1 i1 1

1 i 1 i 152 156 160 164 168 172

NICR0NETER

48
REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T95-1 TABLE 1 GRAMMAGE ( MASS PER UNIT AREA ) TAPPI STANDARD T410 0S-68 SAMPLE OFFSET ENAMEL COATED SAMPLE NEWSPRINT TEST D. 10 LAB D34 1 17 GRAMS PER SQUARE METER D35 55 GRAMS PER SQUARE METER CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DEV SDR R. SDR VAR F LAB

LI 0 0 119.20 .26 .30 .92 1.33 55.50 .06 .07 .65 • 81 95C e L100

L12 1 117.90 -1.04 -1.24 .75 1.09 54.83 -.61 -.75 .79 .98 95B 0 L121 L162 1 16.97 -1.97 -2.34 1.17 1.70 56. 02 • 56 .70 1.20 1.49 95K 0 LI 62 L213 118.08 -.87 -1.03 .66 .96 54.41 -1.03 -1.26 .69 .85 95F 0 L213

L233 1 18.68 -.27 -.32 .61 .89 5 5. 22 -.23 -.27 .56 .69 95T e L233

L249 119.49 .55 . 65 .56 .61 55.83 .39 .47 .47 .58 951 0 L249

L274 1 19.00 .06 .07 .47 .68 57.00 1.56 1.89 .47 .58 95B 0 L274

L28 0 1 18.27 -.67 -.80 .69 1.00 55. 13 -.31 -.38 1.00 1.24 95T 0 L280

L305 1 17.80 -1. 14 -1.36 .79 1. 14 240.00 184.56 224. 68 1.05 1.31 95T * L305

L339 120.00 1.06 1.25 .00 .00 56.02 .58 ,70 .13 . 16 95T a L339

L342 1 19.26 .32 .37 .86 1.24 55. 86 .42 .51 .51 .64 95C 0 L342 L344 120.09 1.14 1.35 .33 .48 53.35 -2.10 -2.55 3.80 4.71 95T a L344

L442 1 18.70 -.24 -.29 .35 .51 55. 54 .10 .12 .20 .25 95E a L4 42 L484 1 19.20 .26 .30 .92 1.33 65.54 10.10 12.29 .58 .71 95B * L4 84 L557 1 18.73 -.21 -.25 1.55 2.24 56e 10 .66 .80 .93 1. 15 95C 0 L557

L55 9 119.29 .35 .41 .50 .73 55.46 .02 .02 .65 .80 95K a L559

L571 72. S7 -46.37 -55.02 1.02 1.48 34.27 -21.18 -25.78 .43 .53 95P • L571 L597 122. 80 3.86 4.57 1.69 2.45 58.00 2.56 3.11 .00 .00 95C * L597

LOS 8 1 19.58 .64 .76 .64 1.22 55.79 .34 .42 .54 .67 95T e L668

L693 119.88 .94 1.11 .77 1.11 55.04 -.40 -.49 .31 .39 9SG o L693

GR. MEAN -1 18.94 G/SQ. METER GRAND MEAN - 55.44 G/SQ. METER TEST DETERMINATIONS - 10 SD MEANS - . 84 G/SG. METER SD OF MEANS “ .82 G/SQ. METER 16 LABS IN GRAND MEANS

AVERAGE SDR - .69 G/SQ. METER AVERAGE SDR • .81 G/SQ. METBB TOTAL NUMBER OF LABORATORIES REPORTING • 20

Best values: D34 119.0 + 1.1 grams per square meter

D35 55.5 + 1.4 grams per square meter

The following laboratories were omitted from the grand means because of extreme test results: 305,

484, 597.

Data from the following laboratories appear to be

off by a multiplicative factor: 571.

REPORT NO. 60G TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979 ANALYSIS T95-1 TABLE 2 GRAMMAGE < MASS PER UNIT AREA)

TAPPI STANDARD T410 OS-68

LAB MEANS COORDINATES AVG C6DE F D34 D35 MAJOR MINOR R. SDR VAR PROPERTY TEST INSTRUMENT CONDITIONS

L571 * 72.57 34.27 -23. 93 -45.01 1.01 95P BASIS WEIGHT < GRAMMAGE )

,

PRODUCTION REAM CUTTER

L162 6 116.97 56.02 -1.92 -.74 1.59 95K BASIS WEIGHT (GRAMMAGE), WEIGHED AS RBCBIVED

L305 n 1 17.60 240.00 -113. 17 145.79 1.23 95T BASIS WEIGHT (GRAMMAGE), TEMPLATE CUT

LI 21 6 1 17.90 54. 83 -.46 -1.12 1.04 95B BASIS WEIGHT ( GRAMMAGE )

,

CONCORA CUTTER

L21 3 0 1 18.08 54.41 -. 06 -1.35 .90 95F BASIS WEIGHT ( GRAMMAGE ), FOUR-SQUARE CUTTER L260 0 118.27 55. 13 -.35 -.66 1.12 95T BASIS WEIGHT ( GRAMMAGE )

,

TEMPLATE CUT

L233 e 118.68 55.22 -.07 -.34 .79 95T BASIS WEIGHT (GRAMMAGE ), TEMPLATE CUT

L442 0 118.70 55. 54 -.25 -.07 .38 95K BASIS WEIGHT (GRAMMAGE ), WEIGHED AS RECEIVED

L557 0 118.73 56. 10 -. 57 .39 1.70 95C BASIS WEIGHT (GRAMMAGE), CUTTING BOARD

L274 0 1 19.00 57.00 -.90 1.27 .63 95B BASIS WEIGHT (GRAMMAGE), CONCORA CUTTER L100 0 1 19.20 55.50 . 17 .20 1.07 95 C BASIS WEIGHT ( GRAMMAGE )

,

CUTTING BOARD

L484 * 1 19.20 6 5.54 -5.94 8. 17 1.02 95H BASIS WEIGHT (GRAMMAGE ), SQUARE AND BLADE

L342 0 1 19.26 55. 86 -.00 .52 .94 95C BASIS WEIGHT ( GRAMMAGE )

,

CUTTING BOARD

L559 0 119. 29 55. 46 .26 .22 .77 95K BASIS WEIGHT ( GRAMMAGE ), WEIGHED AS RECEIVED

L249 0 1 19.49 55. 83 .20 .64 .69 951 BASIS WEIGHT (GRAMMAGE), INGENTO PAPER CUTTER

L68 8 0 119.58 55.79 .30 .66 .94 95 T BASIS WEIGHT ( GRAMMAGE )

,

TEMPLATE CUT

L693 0 1 19.88 55.04 .99 .25 .75 95G BASIS WEIGHT ( GRAMMAGE ), PRECISION CUTTER

L339 0 120.00 56. 02 .49 1.10 .08 95T BASIS WEIGHT ( GRAMMAGE )

,

TEMPLATE CUT

L344 0 120.09 53.35 2. 18 -.97 2.59 95 T BASIS WEIGHT (GRAMMAGE), TEMPLATE CUT

L597 * 122.80 56.00 1.50 4.37 1.22 95C BASIS WEIGHT ( GRAMMAGE >

,

CUTTING BOARD

GMEANS

1 18.94 55.44 1.00 95* ELLIPSE: 2.47 2.24 WITH GAMMA --37 DEGREES

49
G/SQ.

METER

53-0

54.0

55-0

56.0

57.0

58

-

GRAMMAGE (MASS PER UNIT AREA)

SAMPLE 034 = 118.9 G/SQ. METER SAMPLE 035 = 55-4 G/SO. METER

_i i_ -I l_

LQ + .X.* NOT [N GRAND MEANS

CO

(=> ANALYSIS T95-1

Q_

CE

CO

O

O

©

©

©

© <%)

©

©

©

©

©

©

SAMPLE D34

121.0

T 116.0 117.0 118.0 119.0 120.0 122.0

G/SQ.METER

50
REPORT NO. 600 TAPPI COLLABORATIVE REFERENCE PROGRAM JUNE 1979

SUMMARY TABLE

SAMPLE GRAND SD OF AVER BEPL LABS LABS REPL TEST METHOD CODE MEAN MEAN SDR CRP INCL PARTIC TAPPI REPEAT REPR6D

AIR RESISTANCE. GURLEY B95 48# 4 2.9 4.5 10 61 65 10 4.0 8.0 T40-1 GURLEY UNITS A81 22# 0 1.9 2.5 2.2 5.3

AIR RESISTANCE. SHEFFIELD £95 72# 4 3.5 6.2 10 38 44 10 5.4 9.6 T40-2 SHEFF. UNITS A81 13 1 # 1 a.o 13. 1 11.5 22. 2 AIR RESISTANCE. GURLEY EG FLOTATION £73 1219# 217. 485. 10 1 1 13 10 4 25. 600. T41-1 SEC/10 CC D06 164# 16. 21. 18. 44. SMOOTHNESS. PARKER PRIN1SURF J50 6# 08 .58 .11 10 8 9 10 .10 1.60 T44-1 MICRONS J74 4. 29 o 38 .12 .11 1.06 SMOOTHNESS, SHEFFIELD J50 273.5 11.3 7. 1 15 88 92 10 6.2 31.4

T45-1 SHEFF. UNITS J74 7 9# 4 7.3 5.0 4.4 20.4 SMOOTHNESS, BEKK J50 10# 30 .68 .58 15 1 1 13 10 .51 1.91 T4S-2 BEKK SECONDS J74 79.96 10.39 8.92 7.82 29. 14 SMOOTHNESS, BENDTSEN J50 482# 4 55. 1 45. 9 10 8 9 10 40.2 152.7 T47-1 ML/MIN J74 93# 1 7.1 9.3 8.2 19.7 KAN INK ABSORPTION E50 65# 07 5.38 .59 4 9 13 4 .82 14. 91 T56-1 KAN UNITS £80 25# 11 2.87 1.24 1.72 7.96

PH, COLD J 1

8

4.734 .217 . 068 5 7 8 2 • 134 .6 11 T57-1 PH UNITS A99 5# 606 o 268 . 142 .278 .8 26

PH, HOT J 1 8 4# 412 c 109 .026 5 5 6 2 .051 .305 T57-2 PH UNITS A99 5# 100 .057 .044 .086 .172

OPACITY, BAL TYPE. e9* BACKING K24 95.39 .37 .28 10 77 91 5 .34 1.06 T60-1 PERCENT GO 1 95# 82 .44 .24 .30 1. 25 OPACITY, BAL TYPE, PAPER BACKING K24 95.65 . 14 .23 10 6 7 5 .29 .44 T60-2 PERCENT GO 1 93. 88 .33 .27 .34 .94 OPACITY, ELREPHO TYPE, PAPER BACKING K24 96.25 . 16 .18 10 16 19 5 .22 .47 T60-3 PERCENT GO 1 94.39 .24 . 16 .20 .67 BLUE REFLECTANCE, DIRECTIONAL E79 96o 00 .29 .12 8 20 49 6 .13 . 82 T6S-1 PERCENT J98 75. 96 .35 .13 . 15 . 97 BLUE REFLECTANCE, DIFFUSE, RITE TRAP E79 96# 43 .76 .07 Q 16 19 6 .08 2. 11 T65-2 PERCENT J98 75. 83 .53 .13 . 14 1.47 BLUE REFLECTANCE. DIFFUSE, NO TRAP E79 95. 04 1.13 .11 8 18 18 6 . 12 3. 13 T6S-3 PERCENT J98 76.62 • 88 .11 . 12 2. 44

SPECULAR GLOSS. 75 DEGREE E92 49.23 1.62 .92 10 51 56 5 1.14 4. 56 T75-1 GLOSS UNITS G05 37. 82 1.70 1. 15 1.42 4. 82 THICKNESS (CALIPER) J 66 6.337 . 1 08 .093 10 62 75 10 .081 .298

T90-1 MILS J82 2.685 .070 .040 . 035 .195 GRAMMAGE ( MASS PER UNIT AREA

)

D34 1 18.94 .84 .69 10 16 20 3 1.10 2. 51 T95-1 G/SQ. METER D35 55.44 .82 .81 1.29 2.52

51
HBS-1 14A (REV. 8-78)

U.S. DEPT. OF COMM. 1. PUBLICATION OR REPORT NO. llpife (*' No. *« Ascites no, ;

;; ; . I BIBLIOGRAPHIC DATA

SHEET

TAPPI CRP 60G

/V ' '/ -X .-V | |

4. TITLE AND SUBTITLE 5. Publication Date Technical Association of the Pulp and Paper Industry

C0LLAB6RATIVE REFERENCE PROGRAM FOR PAPER

Report #60G

7. AUTHOR! S) R« O# Powell, J« Horlick

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, DC 20234

August 13, 1979

8. Performing Organ. Report No. NBSTR 79-1806

11. Contract/Grant No.

12. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS (Street, City. state, ZIP)

Collaborative Testing Services, Inc*

9241 Wood Glade Drive, Great Falls, VA 22066

and Technical Association of the Pulp and

Paper Industry _____ _

13. Type of Report & Period Covered FINAL

15. SUPPLEMENTARY NOTES

n Document describes a computer program; SF-185, FIPS Software Summary, is attached.

16. ABSTRACT (A 200-word or leas factual summary of moat significant information . If document includes a significant bibliography or

literature survey, mention it here,)

Collaborative Reference

tori.es with the means f

uniformity of their tea

participating laborator

grams is the provision

the testing art. This

averages for each parti

variability, and other

dards committees#

Programs provide participating laboraor checking periodically the level and

ting in comparison with that of other

ies* An important by-product of the pro*

of realistic pictures ©f the state of

is on® of the periodic reports showing

cipant, within and between laboratory

information for participants and stars17. KEY WORDS (mix to twelve entries; alphabetical order; capitalize only the liret letter of the first key word unless a proper name

;

separated by semieofema)

Collaborative reference program; Laboratory evaluation? Paper;

Precision; Reference samples. Testing calibration

18. AVAILABILITY Unlimited

X X For Official Distribution. Do Not Release to NTIS

I I Order From Sup. of Doc., U.S. Government Printing Office, Washington, DC

20402, SD Stock No. SN003-003-

I | Order From National Technical Information Service (NTIS), Springfield, VA. 22161

19. SECURITY CLASS

(THIS REPORT)

UNCLASSIFIED

20. SECURITY CLASS

(THIS PAGE)

UNCLASSIFIED

21. NO. OF

PRINTED PAGES

58

22. Price

USCOMM-DC

1I1