/I5SI& 7V-/352T

MCCA

MANUFACTURERS COUNCIL ON COLOR AND APPEARANCE — 1 . 1 ———————————.—— ——————

COLLABORATIVE REFERENCE PROGRAM

COLOR AND APPEARANCE

RETROREFLECTANCE

REPORT NO. 5

0.8. 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 resistence

Grammage

Smoothness

Surface pick strength

K & N ink absorption

pH

Opacity

Blue reflectance (brightness)

Specular gloss, 75°

Thickness

Concora (flat crush)

Ring crush

FKI KRAFTBOARD (48 times per year)

Mullen burst of linerboard

Concora test of medium

MCCA Color and Appearance (4 times per year)

Gloss at 60°

Color and color difference

Retroref lectivity

Rubber (4 times per year)

Tensile strength, ultimate elongation and tensile stress

Hardness

Mooney viscosity

Vulcanization properties

ASTM Textiles (3 times per year)

Flammability (FF3-71 and FF5-74)

ASTM Cement (2 times per year)

Chemical (11 chemical components)

Physical ( 8 characteristics)

AASHTO Bituminous

Asphalt cement (2 times per year)

Cutbacks (once a year)

Collaborative Reference Programs

B360 Polymer Bldg.

National Bureau of Standards

Washington, D.C. 20234
MANUFACTURERS COUNCIL ON

COLOR AND APPEARANCE

COLLABORATIVE REFERENCE PROGRAM

FOR

COLOR AND APPEARANCE

RETROREFLECTANCE

J. Horlick

Office of Testing Laboratory Evaluation Technology

Office of Engineering Standards

National Engineering Laboratory

J. Stevenson

CTS-NBS Research Associate

U. S. DEPARTMENT OF COMMERCE

National Bureau of Standards

NBSIR 78-1355

Introduction

Sample sets of retro ref lective road-sign sheeting material were

sent to 18 laboratories participating in this Collaborative

Reference Program. The sample set consisted of two specimens

each of silver sheeting and of orange sheeting. Ten laboratories returned data taken in accordance with Federal

Specification L-S-300 (A or B) or a close modification

thereof, and two laboratories followed "other" methods.

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

report in general, please contact Jeff Stevenson or Jeffrey

Horlick on (301) 921-2946.

November 6, 1978
TABLE OF CONTENTS

Key to Tables and Graphs

Red and Orange Sheeting for -4°

Entrance and 0.2° Observation

Red and Orange Sheeting for 30°

Entrance and 0.2° Observation

Red and Orange Sheeting for -4°

Entrance and 2.0° Observation

Red and Orange Sheeting for 30°

Entrance and 2.0° Observation

Red Sheeting, -4° and 30° Entrance,

.2° Observation

Orange Sheeting, -4° and 30°

Entrance, .2° Observation

Red Sheeting, -4° and 30° Entrance,

2.0° Observation

Orange Sheeting, -4° and 30°

Entrance, 2.0° Observation

Percent Difference between Laboratory

Means and Grand Means
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 comer 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 //

DEV - The DEViation of 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.

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

F - Flag, with following meaning:

// - Excluded because data were not understood or because

X -

analysis indicated extreme performance values or non- compliance with required test procedures.

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 would fall

outside of the 95% error ellipse.

0 - Included in grand mean and inside 95% error ellipse.

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). A

participant whose plotted point falls outside of the

ellipse or the rectangular area should carefully re- examine the testing procedure he is following.

Note: Graphs are plotted with an ellipse when there

are 20 or more instruments in the analysis.

1

MMMMMMMMWIimimW»ll II « llll> I'Hfl
REPORT NO,. 5 MCCA COLLABORATIVE REFERENCE PROGRAM ANALYSIS C72=l TABLE I RETROREFLBCTANCE

1977=1978

SAMPLE RED AT =4,. 2 DEGRBES SAMPLE ORANGE AT =4,. 2 DBG TBST D. - 4 LAB C0DB

R01 MEAN DEV N. DEV SDR R. SDR

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

C42 8 52.9 1.7 .31 .3 .41 207.7 3.0 .31 1.5 .67 72A 0 C428

C462 59.8 8.6 1.57 1.2 1.55 205.2 .5 .05 1.3 .55 72A 0 C462

C471 56.6 7.4 1.35 2.4 3.14 211.6 6. 8 .70 3.3 1.48 72C 0 C4 71 C4 79 52.1 .9 .16 .4 .48 215.5 1 0. 8 1.10 2.3 1.04 72A 0 C479

C480 53.8 2.6 .48 .5 .61 215.5 10.7 1.10 1.3 .57 72A 0 C480

C481 47.5 = 3.7 = .68 .6 .75 192.5 =1 2.3 = 1.25 3.0 1.33 72A 0 C481 C486 52.1 .9 .16 .9 1.21 208.1 3.4 .35 .5 .23 72A 0 C4 86 C48 8 53.5 2.3 .42 .6 .75 21 8.0 13.2 1.35 4.1 1.81 72C 0 C488

C490 39.3 = 11.9 = 2.17 1.3 1.62 188.9 = 15.9 = 1.62 4.5 2.01 72A 0 C4 90 C49

49.9 = 1.3 = .24 .6 .80 199.7 = 5.1 = .52 3. 8 1.66 72A 0 C491

C522 45.8 = 5.4 = .98 .5 .65 202.4 = 2.4 = .24 1.0 .42 72A 0 C522

ceil 46.4 = 4.8 = .87 .2 .22 189.4 -15.4 = 1.57 1.6 .73 72A 0 ceil

C61 4 53.9 2.7 .50 .6 .83 207.3 2.5 .26 1.1 .49 72C 0 C614

GR * MEAN - 51.2 CP/FT«=C/SQFT GRAND MEAN - 204.8 CP/FT- C/SQFT TBST DETERMINATIONS • 4 SD MEANS 5.5 CP/FT°C/SQFT SD OF MBANS - 9.8 CP/FT® C/SQFT 13 LABS IN GRAND MEANS AVERAGE SDR - *8 TOTAL NUMBER 0F LABORATORIES REPORTING - CP/FT-C/SQFT

13 AVERAGE SDR • 2.3 CP/FT® C/SQFT

REPORT NO. MCCA COLLABORATIVE REFERBNCB PROGRAM ANALYSIS C72=l TABLE 2 RETROREFLBCTANCE1977=1978

LAB MEANS COORDINATES AVG

CODE F RO

OOl MAJOR MINOR R. SDR VAR PR0PBRTY® 3 «= TBST INSTRUMENT-—CONDITIONS

C490 0 39.3 188.9 = 19.4 4.1 1.82 72 A RETRORBFLBCTANCB. METHOD LS300A OR LS300B

C522 0 45. 8 202.4 =4.4 3.9 .54 72 A RBTR0RBPLBCTA NCE

MBTH0D LS300A OR LS300B

C611 0 46. 4 189.4 = 16.0 = 2.1 .48 72 A RBTROREFLBCTANCE, METHOD LS300A OR LS300B

C481 0 47.5 192.5 = 12.7 = 1.8 1.04 72 A RBTRORBFLBCTANCB , MBTHOD LS300A OR LS300B

C4 91 0 49. 9 199.7 = 5.2 = .9 1.23 72 A RBTRO RBFLBCT A NCB , MBTHOD LS300A OR LS300B

C486 0 52.1 208.1 3.4 .6 .72 72 A RBTRORBFLBCTA NCE

METHOD LS300A OR LS300B

C4 79 0 52.1 215.5 10.2 3.7 .76 72 A RBTRORBFLECTANCE, MBTHOD L8300A OR LS300B

C42 8 0 52.9 207.7 3.4 = .3 .54 72 A RBTRORBPLBCTANCE. METHOD LS300A OR LS300B

C488 0 53.5 218.0 1 3.0 3.5 1.28 72 C RB TR0 RB F LBCT ANCB . MBTHOD AND INSTRUMENTATION

C480 0 53.8 215.5 10.8 2.1 .59 72 A RBTRORBFLBCTANCB, MBTHOD LS300A OR LS300B

C61 4 0 53.9 207.3 3.5 = 1.4 .66 72C RE TR0 RBFLBCTA NCE

MBTHOD AND INSTRUMENTATION

C471 0 58.6 211.6 9.3 = 3.8 2.31 72 C RBTRORBFLBCTANCB, MBTHOD AND INSTRUMENTATION

C462 0 59. 8 205.2 4.0 = 7.6 1.05 72 A RB TRO RB FLBCT ANCB

METHOD LS300A OR LS300B

GMEANS

51.2 204.8 1.00

95% ELLIPSE: 31 .4 10.3 WITH GAMMA - 65 DEGREBS

2
SRMPLE

001

RETR0REFLECTRNCE

SAMPLE R01 = 51. CP/FT-C/SQFT SAMPLE 001 = 205 CP/FT-C/SQFT

240

235

230-

225-

220

215-

210

> > _J L_

205-

+ .X .» NOT IN GRANO MEANS

ANALYSIS C72-1

o o o

200 -

195

190

185

180-

175-

170 -i r -| r 1 r 15 20 25 30 35 40 45 50 55 60

SAMPLE R01

65 70 75 80 85 90
(

REPORT NO. 5 MCCA COLLABORATIVE REFERENCE PROGRAM 1977=1976 ANALYSIS C72=l TABLE 1 RBTROREFLBCTANCE

SAMPLE RED AT 30, •2 DEGREES SAMPLE ORANGE AT 30. .2 DEG TEST D. - 4 LAB R02 002 CODE MEAN DEV N. DEV SDR R. SDR MEAN DBV N. DBV SDR R. SDR VAR F LAB

C428 42.2 .5 .07 1.7 .98 156.7 = 3.9 = .28 9.5 1.04 72A 6 C428

C462 50.5 8. 6 1.42 2.5 1.47 163.9 3.3 .24 5.1 . 56 72A 6 C462

C471 55.9 14.2 2.28 3.6 2.10 193.4 32. 7 2.37 11.2 1.23 72C 0 C471 C479 41.1 = .6 = .09 1.9 1.11 169.3 8.7 .63 5.8 .63 72A 0 C4 79 C480 42.2 .5 .09 1.9 1.09 171.5 1 0.8 .78 1 8.9 2.07 72A a C480

C4 8I 37.7 = 4.0 = .63 1.5 . 88 153.0 = 7.7 = .56 7.7 .84 72A a C481 C486 41.3 = .4 = .07 .8 .49 159.6 = 1.1 = .08 3.8 .42 72A 0 C486

C48 8 41.0 *=.7 = .11 1.8 1.08 165.5 4.8 .35 8.5 .93 72C a C488

C4 90 30.9 = 10. 8 = 1.74 1.3 .76 137.1 =23.6 = 1.71 11.2 1.22 72A a C490

C491 38.1 = 3.6 = *57 1.8 1.08 145.4 = 15.3 = 1.11 8.9 .98 72A a C4 91 C522 35.6 = 6.1 = .98 1.7 1.00 150.4 =10.3 = *75 10.9 1.20 72A a C522

C611 42.6 1.1 .18 .2 .13 164.9 4.2 .30 11.2 1.22 72A 0 C611

C61 4 42.7 1.0 .16 1.4 . 83 158.0 = 2.7 = .19 6.0 .66 72C a C614

GR • MEAN - 41.7 CP/FT-C/SQFT GRAND MEAN - 160.7 CP/FT-C/SQFT TEST DETERMINATIONS • i SD MEANS - 6.2 CP/FT-C/SQFT SD OF MEANS - 13.8 CP/FT-C/SQFT 13 LABS IN GRAND MEANS

AVERAGE SDR * 1.7 CP/FT=C/SQFT AVERAGE SDR - 9.1 CP/FT-C/SQFT

TOTAL NUMBER OF LABORATORIES REPORTING - 13

REP0RT N0. 5 MCCA CaLLABaRATI VB REPBRBNCB PRaGRAM 1971 ANALYSIS C72-1 TABLB 2 RETR0REFLBCTANCE

LAB MBANS CaaRDINATES AVG

C0DE F R02 002 MAJOR MINOR R. SDR VAR PRaPBRTT-«°TBST INSTRUMENT® -“CONDITIONS

C490 a 30.9 137.1 =25.9 1.1 .99 72 A RETRaREFLBCTANCE

METH0D LS300A OR LS300B

C522 a 35.6 150.4 = 11.8 1.8 1.10 72 A RBTRaRBFLBCTANCB, MBTHaD LS300A OR LS300B

C481 a 37.7 1 53.0 = 8.6 . 8 .86 72A RE TRa RB F LECTA NCB » METH0D LS300A OR LS300B

C491 a 38. 1 145. 4 = 15.5 = 2.5 1.03 72 A RBTR0RE F LBCT ANCB . MBTHaD LS300A OR LS300B

C488 a 41.0 165.5 4.2 2.5 1 .01 72C RETRaREPLBCTANCB, METH0D AND INSTRUMENTATION SPBCIFIBD

C4 7 9 a 41.1 1 69.3 7.8 3.8 . 87 72 A RBTRaRBFLBCTANCB. MBTHaD LS300A OR LS300B

C4 8 6 a 41.3 1 59.6 = 1.2 .0 .45 72 A RBTR0RBFLBCTANCB, MBTHaD LS300A OR LS300B

C42 8 a 42.2 156.7 =3.5 = 1.9 1.01 72 A RBTRaRBPLBCTANCB, MBTHaD LS300A OR LS300B

C4 80 a 42.2 171.5 10.2 3.6 1.58 72 A RBTRaRBFLBCTANCE. MBTHaD LS300A OR LS300B

C6i 4 a 42.7 158.0 = 2.1 = 1.9 .74 72 C RBTRaRBFLBCTANCB. MBTHaD AND INSTRUMENTATION 9PBCIFIBD

C611 a 42. 8 164.9 4.3 .5 .68 72 A RBTRaRBFLBCTANCB, MBTHaD LS300A OR LS300B

C46 2 a 50.5 163.9 6.4 = 6.9 1.02 72 A RBTRaRBFLBCTANCB. MBTHaD LS300A OR LS300B

C471 a 55.9 193.4 35.7 = .8 1.67 72 C RBTRaRBPLBCTANCB, MBTHaD AND INSTRUMENTATION SPBCIFIBD

GMEANS : 41.7 160.7 1.00

95% ELLIPSE: 43.9 8.6 WITH GAMMA • 67 DBGRBBS

4
RETROREFLECTRNCE

SAMPLE R02 = 42. CP/FT-C/SQFT SAMPLE 002 = 161- CP/FT-C/SQFT

210

200 -

190

180 -

170 -

160 -

150 -

140 -

130 -

120 -

110

,X.« NOT IN GRANO MEANS

ANALYSIS C72-1

C

o

© ©

©

©

©

©

0 10 20 30 40 50 60

SAMPLE R02

70 80 90 100

5
REPORT N0. MCCA COLLABORATIVE REFERENCE ANALYSIS C72°l TABLB t RBTROREFLBCTANCE

1977=1978

LAB SAMPLE

R03

BED AT =4, 2.0 DEGREES SAMPLE

003

6RANGE AT =4.2.0 DBG TEST D. " 4 CODE MEAN DEV N. DEV SDR R. SDR MEAN DBV N. DEV SDR R. SDR VAR F LAB

C42 8 1.30 = .05 = .26 .00 • 00 5.07 = i29 = .71 .05 .69 72A 0 C428

C462 1.70 .35 1.87 .00 • 00 5.70 .34 .83 .00 .00 72A 0 C462

C471 1 . 57 .23 1.20 .05 • 60 6.19 .83 2.03 .06 .80 72C e C471 C479 1.40 .05 .27 .00 • 00 5.42 .06 .15 .21 2.85 72A 0 C479

C480 1.33 .04 .19 .14 1.65 5.58 .21 .53 .08 1.15 72A 0 C480

C481 1.25 = .10 = .53 .50 5 • 80 5.00 = .36 = .89 .00 .00 72 A 0 C481 C490 1.04 = .31 = 1.63 .12 1.35 4. 82 = .54 = 1.34 .11 1.54 72 A e C490

C491.39 .04 .23 .02 .24 5.54 .18 .44 .10 1.31 72A 6 C491 C522 1.24 = .11 = .58 .01 .16 5.21 = il5 = i36 .08 1.05 72A e C522

C61 1 1.21 = .14 = .74 .02 .19 5.08 = .28 = .68 .04 .61 72A 0 C611

C61 4 24.02 22.68 120.74 .21 2.39 77.10 71.74 176.41 .36 O' CM •

<* 72C § C614

GR. MEAN

SD MEANS

- 1.35

• .19 CP/FT= C/SQFT

CP/FT=C/SQFT

GRAND MEAN

SD OF MEANS

- 5.36

- .41 CP/FT= C/SQFT

CP/FT= C/SQFT

TEST DETERMINATIONS - 10 LABS IN GRAND MEANS

AVERAGE SDR • .09 CP/FT°C/SQFT AVBRAGB SDR - .07 CP/FT°C/SQFT

TOTAL NUMBER OF LABORATORIES REPORTING - 11

REPORT NO. 5 MCCA COLLABORATI VB RBFBRBNCE PROGRAM 1977=1978 ANALYSIS C72= 1 TABLB 2 RBTR0R3FLECTANCE

LAB MEANS COORDINATES AVG

CODE F R03 003 MAJOR MINOR R. SDR VAR PROPERTY03 ° TEST INSTRUMENT000 CONDITION

C4 9 0 0 1 .04 4.82 = .62 .07 1.45 72 A RBTRORBFLBCTANCE, METHOD LS300A OR LS300B

C61 X 0 1.21 5.08 = .31 .02 .40 72 A RBTRORBFLECTA NCB

METHOD LS300A OR LS300B

C522 0 1.24 5.21 = .18 .04 .61 72 A RBTRORBFLECTANCB, MBTHOD LS300A OR LS300B

C48X fl 1.25 5.00 = .37 = .05 2.90 72 A RBTRORBFLECTANCE. METHOD LS300A OR LS300B

C42 8 0 1.30 5.07 = .28 = .07 .35 72 A RBTROREFLECTA NCB. MBTHOD LS300A OR LS300B

C48 0 0 1.38 5. 58 .21 .05 1.40 72A RETROREFLBCT ANCB

MBTHOD LS300A OR LS300B

C49X 0 1.39 5.54 .18 .03 .78 72 A RBTRORBFLBCTANCE, METHOD LS300A OR LS300B

C479 0 1 .40 5.42 . 08 = .02 1.42 72 A RBTRORBFLECTA NCB

METHOD LS300A OR LS300B

C471 0 1 .57 6.19 . 85 .11 .70 72 C RBTRORBFLBCTANCE. MBTHOD AND INSTRUMENTATION SPECIFIED

C462 0 1 .70 5.70 .45 = .19 .00 72 A RETRORBFLBCTANCB. METHOD LS300A OR LS300B

C61 4 * f\> *> • o ro 77.10 74.93 6. 81 3.65 72C RB TRO RE P LBCT ANCB

MBTHOD AND INSTRUMENTATION SPECIFIED

GMEANS 1.35 5. 36 1.00

95% :ELLIPSE: 1.39 .28 WITH GAMMA - 67 DBGRBBS

6
SAMPLE

003

RETR0REFLECTANCE

SAMPLE R03 = 1-35 CP/FT-C/SQFT SAMPLE 003 = 5-36 CP/FT-C/SQFT

6 . 8

- 1 1 1 1 1 *-

6 - 6

-

6.4-

6 . 2

-

6 - 0

-

5.8-

5-6

5.4-

5-2-

5.0-

4.8

4 .6-

4.4-

4 .2

4.0-

+ . X . a NOT IN GRAND MEANS

ANALYSIS C72-1

© ©

©

3.8

0-0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1-6 1.8 2.0 2-2 2.4 2.6 2.8

SAMPLE R03

7
REPORT NO. 5 MC9 A C 0LLA B0 RATI VB BBFBBBNCB PROGRAM 1977-1976 ANALYSIS C72-1 TABLB 1 BBTK0BBFLBCTANCE

SAMPLB RED AT 30 .2.0 DEG* BBS SAMPLE 0RANGE AT 30.2.0 DBG TEST D. - 4 LAB R04 004 CODE MBAN DBV N. DBV SDR R. SDR MEAN DBV N. DBV SDR R. SDR VAR F LAB

C42 6 1.000 -.128 -.55 .OOO .00 4.000 -.338 -.58 .216 1 . 89 72A 0 04 2 e C462 1.500 .372 1.60 .000 .00 4.475 .137 .23 .ISO 1.31 72A 0 C462

C471 I. SOS .377 1.62 .064 2.75 5.795 1.456 2.49 .134 1.17 72C 6 C471 C479 1.150 .022 .09 .058 2.50 4.250 -.088 -.15 .05 6 .51 72A 0 C479

C4 80 1.075 -.053 -.23 .017 .75 4.520 .182 .31 .177 1.55 72A 0 C460

C481 1.000 -.128 -.55 .000 .00 4.000 -.338 -.58 .000 .00 72A 0 C481 C490 .747 -.381 -1.63 .017 .74 3.610 -.72 8 -1.24 .052 .46 72A 6 C490

C491 1.167 .059 .25 .030 1.29 4.212 -.126 -.22 .061 .54 72A a C491 C522 .975 -.153 -.66 .019 . 83 4.017 -.321 -.55 .195 1.71 72A a C522

C611 1.142 .014 .06 .026 1.14 4.505 .167 .28 .098 .86 72A a C611

C61 4 20.500 19.372 83.15 .271 11.73 68.100 63.762 108.87 .627 5.49 72C 0 C614

GR. MEAN - 1.128 CP/FT-C/SOFT Gl AND MBAN - 4.338 CP/FT-C/SQFT TEST DETERMINATIONS • t SD MEANS * .233 CP/FT-C/SQFT SD 0F MEANS - .586 CP/FT-C/SQFT 10 LABS IN GRAND MEANS AVEBAGB SDR • .023 C9/FT-C/SQFT AVERAGE SDR * .114 CP/FT-C/SQFT

T0TAL NUMBER OP LABORATORIES RB PORTING - ll

RBP0RT NO. 5 MCCA COLLABORATIVE REFERENCE PROGRAM ANALYSIS C72-1 TABLE 2 RETRORE PLBCTAN CE

1977-1978

LAB MEANS CO0RDINATBS AVG

C0DB F £04 004 MAJ0R MIN0R R. SDI VAR PROPERTY TBST INSTRUMENT CONDITIONS

C490 a .747 3.610 -.812 .127 .69 72 A RHTRaRBFLBCTANCEMETHOD LS300A OR LS300B

C522 a .975 4.017 -.353 .042 1.2' 72 A RBTRaPBFLBCTANCB # MBTHOD L S? 0 0OR LS300B

C42 8 a 1.000 4.000 -.362 .013 .9? 72A RBTROREPLBCTANCB, METHOD LS300A OR LS300B

C4 81 a 1 .000 4.000 -.362 .013 .09 72 A RETRORBFLBCTANCE, MBTHOD LS300OR LS300B

C4 80 a 1.075 4.520 .155 .109 1.1* 72 A RETRO REFLBCTANCB, MBTHOD LS300A OR LS300B

C611 a 1.142 4.505 .162 .040 1.09 72 A RBTR 0RE F LBCT ANCEMETHOD LS300A OR LS300B

C479 a 1.150 4. 250 -.077 -.049 1. 59 72 A RETRO RBF LBCTA NCEMETHOD LS300A OR LS300B

C491 a 1.187 4.212 -.100 -.097 .91 72 A RETRORB F LBCT A NCE # METHOD LS300A OR LS300B

C462 a 1 .500 4.475 .249 -.308 .69 72A RBTROREPLBCTANCE, METHOD LS300A OR LS300B

C471 a 1.505 5.795 1.500 .111 1.99 72C RETFORBFLBCTANCF, MBTHOD AND INSTRUMENTATION

C61 4 * 20.500 68.100 66.605 2.138 8.61 72C RETROREFLECTA NCE , METHOD AND INSTRUMENTATION

GMEANS

1.128 4.338 1.09 S5% ELLIPSE: 1.954 .410 WIT* GAMMA - 71 DEGREES

SPECIPIBD

SPECIFIED

8
SAMPLE

004

RETR0REFLECTANCE

SAMPLE R04 =1.13 CP/FT-C/SQFT SAMPLE 004 = 4.34 CP/FT-C/SQFT

6 .5 1 1 1 1 L

6 = 0

-

5=5-

5=0-

4=5-

4=0-

3=5-

3=0-

2-5-

2=0

+ , X . « NOT IN GRAND MEANS

ANALYSIS C72-

QD

O

O

O

%

i r 0=0 0=5 1=0 1=5 2=0 2=5 3=0 3=5 4.0

SAMPLE R04

9
REPORT NO,. 5

»

MCCA COLLABORATIVE REFERENCE PROGRAM ANALYSIS 072=1 TABLE 1 RBTROREFLECTANCE1977-1978

SAMPLE RED AT =4, .2 DBGRBBS SAMPLE RED AT 30. .2 DBGRBBS TBST D. • 4 LAB R01 R02 CODE MEAN DBV N. DBV SDR R. SDR MEAN DBV N. DBV SDR R* SDR VAR F LAB

C42 0 62.9 1.7 .31 .3 .41 42.2 .5 .07 1.7 .98 72A 0 0428

C462 59.8 8. 6 1.57 1.2 1.55 50.5 a. a 1.42 2.5 1.47 72A 0 C462

C4 71 58.6 7.4 1.35 2.4 3.14 55.9 14.2 2.28 3.6 2.10 72C 0 C471 C479 52.1 .9 .16 .4 .48 41.1 -.6 -.09 1.9 1.11 72A 0 C479

C480 53.8 2.6 .48 .5 .61 42.2 .5 .09 1.9 1.09 72A 0 C480

C48S 47.5 -3.7 -.68 .6 .75 37.7 -4.0 -.63 1.5 .88 72A 0 C4 81 C486 52.1 .9 .16 .9 1.21 41 .3 -*4 -.07 .8 .49 72A 0 C486

C488 53.5 2.3 .42 .6 .75 41.0 = i 7 -ill l.e 1.08 72C 0 C488

C49 0 39.3 = 11.9 -2.17 1.3 1.62 30.9 -10.8 -1.74 1.3 .76 72A 0 C490

C491 49.9 -1.3 -.24 .6 .80 38.1 -3.6 -.57 1.8 1.08 72A 0 C491

C522 45.8 -5.4 -.96 .5 .65 35.6 -6.1 -.98 1.7 1.00 72A 0 C522

C61I 46.4 -4.8 -.87 .2 .22 42.8 1.1 .18 .2 .13 72A 0 C611

C61 4 53.9 2.7 .50 .6 .83 42.7 1.0 .16 1.4 .83 72C 0 C6 1

GR. MEAN • 51.2 CP/FT-C/SQFT GRAND MBAN - 41.7 CP/FT-C/SQFT TEST DBTBRMINATIONS * SD MEANS - 5.5 CP/FT-C/SQFT SD OF MEANS • 6.2 CP/FT® C/SQFT 13 LABS IN GRAND MBANS AVERAGB SDR * .8 CP/FT-C/SQFT AVBRAGE SDR • 1.7 CP/FT-C/SQPT

TOTAL NUMBER OF LABORATORIES REPORTING - 13

REPORT NO. 5 MCCA COLLABORATI VB RBFBRBNCE PROGRAM 1977-1978 ANALYSIS C72-1 TABLE 2 RBTRORBELECTANCB

LAB CODE F MBANS

R01 R02 COORDINATES

MAJOR MINOR

AVG

R. SDR VAR PROPERTY00 ° TEST INSTRUMENT®—CONDITIONS

C490 0 39.3 30.9 -16.0 1.9 1.19 72A RBTR0RBFLBCT A NCB . MBTH0D LS300A OB LS300B

C522 6 45. 8 35.6 -8.1 .1 .83 72 A RETRORBFLECTANCE, METHOD LS300A OB LS300B

C611 0 46.4 42.8 -2.3 4.4 .18 72 A RETRORBFLECTANCE, METHOD LS300A OB LS300B

C4 81 0 47.5 37.7 -5.4 .2 .81 72 A RBTRORB PLBCTANCB

MBTH0D LS300A OB LS300B

C491 0 49.9 38.1 =3.6 -1.3 .94 72 A RBTROREFLBCTANCB, METHOD LS300A OR LS300B

C486 0 52. I 41.3 .2 -.9 .85 72A RBTROREFLECTANCE . METHOD LS300A OB LS300B

C479 0 52.1 41.1 .1 -1.0 .79 72 A RBTROREFLECTANCE

MBTHOD LS300A OR LS300B

C426 0 52.9 42.2 1.5 -1.0 .69 72 A RE TR0 REFLECTANCE

MBTHOD LS300A OR LS300B

C4 08 0 53. 5 41.0 1.0 -2.2 .91 72 C RBTRORBFLBCTANCE, METHOD AND INSTRUMENTATION SPECIFIED

C480 0 53. 0 42.2 2.1 -1.6 .85 72 A RB TR0 RB F LBCTA NCB , METHOD LS300A OB LS300B

C61 4 0 53. 9 42.7 2.5 -1.4 . 83 72 C RE TR0RBFLBCTANCB , METHOD AND INSTRUMENTATION SPECIFIED

C471 0 58. 6 55.9 15.6 3.7 2.62 72 C RE TR0RB PLBCTANCE , MBTHOD AND INSTRUMENTATION 8PBCIFIBD

C4 62 0 59. 0 50.5 12.3 -.7 1.51 72 A RBTROREFLBCTANCE, MBTHOD LS300A OB LS300B

GMBAN9: 51.2 41.7 95* BLLIPSB: 23.7 6.1 1.00 WITH GAMMA - 49 DEGREES

10
SAMPLE

R

02

t

RETRQREFLECTANCE

SAMPLE R01 = 51. CP/FT-C/SQFT SAMPLE R02 = 42. CP/FT-C/SQFT

65- 1 1 1 1 1 1 1 L

60

55-

50-

45-

+ .X.« NOT IN GRANO MEANS

ANALYSIS C72-1

O

O

O

(D@

40-

35-

30-

25-

20 -

15

o

© ©

©

©

©

25 30 35 40 45 50 55 60 65 70 75

SAMPLE R01

li
REPORT NO, 5 MCCA COLLABORATIVE REFERENCE PROGRAM 1977-1978 ANALYSIS C72-1 TABLE 1 RBTRORBPLBCTANCB

SAMPLE ORANGE AT =4, .2 DEG SAMPLB ORANGB AT 30. .2 DBG TBST I>. 4 LAB O01 002 CODE MEAN DEV N. DEV SDR R. SDR MEAN DEV N.DBV SDR R. SDR VAR F LAB

C428 20 7.7 3.0 .31 1.5 .67 156.7 = 3.9 = *28 9.5 1.04 72A 0 C428

C4 62 205.2 .5 .05 1.3 .55 163.9 3. 3 .24 5.1 .56 72A 0 C462

C471 211.6 6. 8 .70 3.3 1.48 193.4 32.7 2.37 11.2 1.23 72C 0 C471

C4 7 9 215.5 10. 8 1.10 2.3 1.04 169.3 8.7 .63 5.8 .63 72A 0 C479

C40O 21 5.5 10.7 1.10 1.3 .57 171.5 10.8 .78 18.9 2.07 72A 0 C4 80

C4 8 & 192.5 -12.3 = 1.25 3.0 1.33 153.0 = 7.7 = *56 7.7 .84 72A 0 C481

C4 86 20 8.1 3.4 .35 .5 .23 1 59.6 = 1.1 = .08 3.8 .42 72A 0 C486

C488 21 8.0 13.2 1.35 4.1 1.81 165.5 4.8 .35 8.5 .93 72C 0 C488

C490 188.9 -15.9 = 1.62 4.5 2.01 137.1 =23.6 = 1 .71 11.2 1.22 72A 0 C4 9C

C4 91 199.7 = 5.1 -.52 3.8 1.66 145.4 = 15.3 = 1.11 8.9 .98 72A 0 C491

C522 202.4 =2.4 = .24 1.0 .42 150.4 = 10.3 = .75 10.9 1.20 72A 0 CS22

C6J1 189.4 = 15.4 = 1 .57 1.6 .73 164.9 4.2 .30 11.2 1.22 72A 0 C611

C61 4 207.3 2.5 .26 1.1 .49 158.0 = 2.7 = .19 6.0 .66 72C 0 C6 1 4

GR. MEAN - 204.8 CP/FT°C/SQFT GRAND MEAN * 160.7 CP/FT- C/SQFT TEST DBTBRMINATIGNS

SD MEANS - 9.8 CP/PT-C/SQFT SD 6F MEANS 13.8 CP/FToC/SOFT 13 LABS IN GRAND MEANS AVBRAGE SDR " 2.3 CP/FT-C/SQFT AVERAGE SDR * 9.1 CP/FT-C/SQFT

TOTAL NUMBER OF LABORATORIES REPORTING * 13

REPORT NO. 5 MCCA COLLABORATIVE REFERENCE PROGRAM ANALYSIS C72—1 TABLE 2 RBTRORBPLBCTANCB

1977-1 978

LAB MEANS COORDINATES AVO

CGDB F ooi 002 MAJOR MINOR R. SDR VAR PROPBRTY®=*°TBST INSTRUMENT-——CONDITIONS

C490 o 1 88.9 137.1 =28.3 2.0 1.62 72 A RBTRORBPLBCTANCB. METHOD LS300A OR LS300B

C6il 6 189.4 164. 9 -4. 1 15.4 .98 72 A RETRG REFLECTANCE, MBTHGD LS300A OR LS300B

C4 81 0 192.5 153.0 = 12.8 6.8 1.08 72 A RBTRGRBPLBCTANCB, MBTHGD LS3C0A OR LS300B

C49i G 199.7 145.4 = 15.8 -3.2 1.32 72 A RBTRGRBFLECTANCB. MBTHGD LS300A 08 LS300B

C522 6 202. 4 150.4 = 10.1 = 3.1 .81 72 A RBTRGRBFLBCTANCE, MBTHGD LS300A OR LS300B

C462 6 205.2 163.9 3.1 1.2 .56 72 A RBTRGRBPLBCTANCB

MBTHGD LS300A 08 LS300B

C6I 4 g 207. 3 158.0 = 1.0 -3. 5 .58 72 C RBTRGRBPLBCTANCB, MBTHGD AND INSTRUMENTATION SPECIFIED

C42 8 0 207.7 156.7 = 1.9 = 4.5 .85 72A RBTRGRBPLBCTANCB, MBTHGD LS300A OR LS300B

C4 86 G 208. 1 159.6 .8 ”3.5 .32 72 A RBTRG RB F LECT A NCB , MBTHGD LS300A OR LS300B

C4 7

fl 211.6 193.4 31.8 10.4 1.35 72 C RBTRORBPLBCTANCB, MBTHGD AND INSTRUMENTATION SPECIFIED

C480 G 215. 5 171.5 14.7 = 3.9 1.32 72 A RETRO RBPLBCTANCB, MBTHGD LS300A OR LS300B

C479 G 215.5 169.3 12.9 = 5.0 .84 72 A RETRORBFLBCTANCB, MBTHGD LS300A OR LS300B

C488 G 218.0 165.5 10.8 = 9.1 1.37 72 C RBTRORBPLBCTANCB, MBTHGD AND INSTRUMENTATION SPECIFIED

GMEANS

204. 8 160.7 1.00 95* ELLIPSE: 45.5 20.6 WITH GAMMA - 60 DEGREES

12
SAMPLE

002

RETR0REFLECTONCE

SAMPLE 001 = 205. CP/FT-C/SQFT SAMPLE 002

210- 1 1 1 1 1 L 161. CP/FT-C/SQFT

_J I I L

200 -

190

1 80 -

170 -

160 -

150 -

140 -

130 -

120 -

110

+ , X . « NOT IN GRAND MEANS

ANALYSIS C72-1

Q D

O

©

o o

o%

©

©

©

©

150 160 170 180 190 200 210 220 230 240 250 260

SAMPLE 001

13
REPORT NO, MCCA COLLABORATIVE REFERENCE PROGRAM ANALYSIS C72-1 TABLE 1 RBTR6REFLECTANCE

1977-1978

SAMPLE BED AT -4,2.0 DEGRBES BED AT 30,2.0 DEGB5BS TEST D. * LAB C0DE

R03 MEAN DEV N. DEV SDR R. SDR R04 MEAN DEV N. DEV SDR R. SDR VAR F LAB

C42 8 1.300 -.049 -.26 .000 .00 1 .000 -.128 — • 55 .000 .00 7 2A 0 C428

C462 1.700 .351 1.87 .000 .00 1.500 .372 1.60 .000 .00 72A 0 C4 62 C4 71 1.575 .226 1.20 .052 .60 1.505 .377 1.62 .064 2.75 72C 0 C471 C479 1.400 .051 .27 .000 .00 1.150 .022 .09 .05 8 2.50 72A 0 C479

C4 8 0 1.385 .036 .19 .142 1.65 1.075 = .053 = .23 .017 .75 72A 0 04 80

C4 8 S 1.250 -.099 -.53 .500 5. 80 1.000 -.128 — • 55 .000 .00 72A 0 C4 81 C4 9 0 1.042 -.307 = 1.63 .116 1.35 .747 = .381 -1.63 .017 .74 72A 0 C490

C491 1.392 .043 .23 .021 .24 1.187 .059 .25 .030 1.29 72A 0 C491 C522 1.240 = .109 = .58 .014 .16 .975 = .153 = 466 .019 .83 72A 0 CS22

C61 1 1.210 -.139 = .74 .016 .19 1.142 .014 .06 .026 1.14 72A 0 C611

C6 X 4 24.025 22.675 120.74 .206 2.39 20.500 19.372 83.15 .271 11.73 72C 0 C6 1 4

GR. MEAN • 1.349 CP/FT*3 C/SQFT GRAND MEAN - 1.128 CP/FT-C/SQFT TEST DETERMINATIONS

SD MEANS .188 CP/FToC/SOFT

AVERAGE SDR • .086

SD OF MEANS * CP/FT-C/SQFT

.233 CP/FT— e/SQFT AVERAGE SDR - .023

10 LABS IN GRAND

CP/FT-C/SOFT MEANS

TOTAL NUMBER 0F LABORATORIES REPORTING 11

BBPORT NO. 5 MCCA COLLABORATIVB REFERENCE PROGRAM ANALYSIS C72-1 TABLE 2 RBTROREFLBCTANCB

1977-1978

LAB MBANS COORDINATES AVG

C0DB F R03 R04 MAJOR MINOR R. SDR VAR PR0PBRTT°o«=TBST INSTRUMENT———CONDITIONS

C490 0 1 .042 .747 -.489 .004 1.05 72 A RBTR0RBFLECTANCE. METHOD LS300A 0R LS300B

C6 X X 0 1.210 1.142 -.076 .118 .66 72 A RBTR0RBFLBCTANCF, METHOD LS300A 0R LS300B

C522 0 1.240 .975 -.188 -.010 .50 72 A RBTR0RBFLECTANCB, METHOD LS300A 0R LS300B

C481 0 1.250 1 .000 -.162 -^002 2.90 72 A RBTR0RBFLBCTANCE, MBTHOD LS300A 0R L9300B

C42 8 0 1 .300 1 .000 -.131 -.041 .00 72 A RBTRORBFLECTANCE. METHOD L9300A 0R LS300B

C480 0 1.385 1.075 -.020 -.061 1.20 72A RE TR0 REFLECTANCE

MBTHOD LS300A 0R LS300B

C4 9X 0 1.39 2 1.187 .073 .003 .77 72 A RBTR0RBP LBCTANCB, METHOD LS300A 0R LS300B

C479 0 1.400 1.150 .048 -.026 1.25 72 A RBTR0REPLBCTANCE, METHOD LS300A 0R LS300B

C47X 0 1.575 1.505 .435 .0 58 1.68 72 C RBTR0 REFLECTANCE, MBTHOD AND INSTRUMENTATION

C462 0 1 .700 1.500 .509 -.043 .00 72 A RETR0REFLBCTANCB, MBTHOD LS300A 0R LS300B

C6X4 0 24.025 2 0.500 29.272 -5.711 7.06 72C RBTR0 REFLECTANCE

METHOD AND INSTRUMENTATION

OMBANS: 1.349 1.128 1.00 95% BLLIP9B: .933 .168 WITH GAMMA • 51 DBG RE B

SPECIFIED

SPECIFIED

14
RETR0REFLECTANCE

SAMPLE R03 = 1-35 CP/FT-C/SQFT SAMPLE R04 = 1.13 CP/FT-C/SQFT

2 .0- 1 1 1 1 —1 ' L

1 .8

1 . 6

-

1 .4-

1 . 2

-

1 . 0

-

0.8

0 . 6

-

0.4-

0.2

.X ,« NOT IN GRANO MEANS

ANALYSIS C72-1

_Q_

(?

0

O

i r

o ©

Q

O

O

1 1 1 r 0.4 0.6 0.8 1-0 1-2 1.4 1.6 1-8 2.0 2.2

SAMPLE R03

15
REPORT NO,. 5 MCCA COLLABORATIVE REFERENCE PROGRAM 1977=1976 ANALYSIS C72— 1 TABLE 1 RBTR OR EFLECTAN CE

SAMPLE ORANGE AT =4.2.0 DBG SAMPLE ORANGB AT 30.2.0 DBG TEST D. • 4 LAB 003 004 C0DB MEAN DEV N. DEV SDR R. SDR MEAN DEV N. DEV SDR R. SDR VAR F LAB

C42 8 5.07 = .29 = .71 .05 .69 4.00 = •34 = .58 .22 1.89 72A 0 C428

C462 5.70 .34 .83 .00 .00 4.47 .14 .23 .15 1.31 72A 6 C462

C472 6.19 .83 2.03 .06 . 80 5.79 1.46 2.49 .13 1.17 72C 0 C471

C4 7 9 5.42 .06 .15 .21 2.85 4.25 = .09 = .15 .06 .51 72A 0 C479

C480 5.58 . 21 .53 .08 1.15 4.52 .18 .31 .1 8 1.55 72A 0 C480

C4 81 5.00 = .36 = .89 .00 .00 4.00 = .34 = .58 .00 .00 72A 0 C481 C490 4. 82 = .54 = 1.34 .11 1.54 3.61 = *73 = 1.24 .05 .46 72A 0 C490

C49I 5.54 .18 .44 .10 1.31 4.21 = *13 °*22 .06 .54 72A 0 C491 C522 5.21 = .15 = .36 .08 1.05 4.02 = *32 = .55 .20 1.71 72A 0 C522

C6il 5.08 = .28 = .68 .04 .61 4.50 .17 .28 .10 . 86 72A 0 C611

C614 77.10 71.74 176.41 .36 4.92 68.10 63.76 108.87 .63 5.49 72C * C614

GR. MEAN 5.36 CP/FT°C/SQFT GRAND MEAN - 4.34 CP/FT°e/SQFT TEST DETERMINATIONS i SD MEANS - .41 CP/FToC/SOFT SD OF MBANS - .59 C P/F T° C/SQFT 10 LABS IN GRAND MEANS

AVERAGE SDR - .07 CP/FT-C/SOFT AVERAGE SDR * .11 CP/FT-C/SQFT

TOTAL NUMBER OF LABORATORIES REPORTING - 11

REPORT NO. 5 MCCA COLLABORATIVE REFERENCE PROGRAM ANALYSIS C72-1 TABLE 2 RBTROREPLBCTANCB1977=1978

LAB MEANS COORDINATES AVG

C0DE F 003 00 4 MAJOR MINOR R. SDR VAR PROPERTY® 3 ® TBST INSTRUMENT- —CONDITIONS

C490 0 4.82 3. 61 = .91 .C5 1.00 72 A RBTRORBPLBCTANCE. MBTH0D LS300A OR LS300B

C4 81 0 5.00 4.00 = .48 .12 .00 72 A RETRORBFLBCTANCB, METH0D LS300A OR LS300B

C428 0 5.07 4.00 = .44 .05 1.29 72 A RBTRORBPLBCTANCE, METHOD LS300A OR LS300B

C61 1 0 5.08 4.50 = .01 .32 .74 72A RBTRORBFLECTANCE, METHOD LS300A OR LS300B

C522 0 5.21 4.02 = . 35 -.05 1.38 72 A RBTRORBFLBCTANCB, METHOD LS300A OR LS300B

C4 7 9 0 5.42 4.25 =.04 = .10 1.68 72 A RBTR0RBFLECTANCE

,

METHOD LS300A OR LS300B

C491 0 5.54 4.21 = .01 = .22 .92 72 A RETRORBFLBCTANCB, METHOD LS300A OR LS300B

C4 80 0 5.58 4.52 .27 = .08 1.35 72 A RBTR0RBFLBCTANCE

,

METHOD LS300A OR LS300B

C462 0 5.70 4.47 .30 = .21 .66 72 A RBTRORBFLECTANCB, METHOD LS300A OR LS300B

C4 7 1 0 6.19 5.79 1.67 .11 .98 72 C RBTR0RBFLBCTANCE, MBTH0D AND INSTRUMENTATION

C61 4 * N • O 68.10 92. 75 =24.67 5.21 72C RB TRORBFLECT ANCB

,

METHOD AND INSTRUMENTATION

GMFANS

:

5. 36 4.34 1.00

95% ELLIPSE: 2.20 .52 WITH GAMMA - 56 DBGRBBS

SPBCIFIBD SPECIFIED

16
SAMPLE

004

RETR0REFLECTANCE

SAMPLE 003 = 5-4 CP/FT-C/SQFT SAMPLE 004

6-5- 1 1 1 1 L 4.3 CP/FT-C/SQFT

1 l l_

6 . 0

-

5-5-

5.0-

4.5-

4 . 0

-

3.5-

3.0-

2.5-

2 . 0

- 3

+ , X . « NOT IN GRAND MEANS

ANALYSIS C72-1

O

OO ©

O

1 r

o o

o o

o

0

1 r 1 r 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5

SAMPLE 003

17
PERCENT

DIFFERENCE

BETWEEN

LABORATORY

MEANS

AND

GRAND

MEANS

0300 o vr CO cn >dm 1 1 CM o CNI c O o CO oo CM M0 o t-H 00 00 O cn O'

03 o • • 1 • • •

l-i co CM on CO CM 'd’ MO oo o- cn O i cn 1 i i 1 >-1 1 1 I * O CO m 00 CM m o in 1 1 00 co vD

T3

O o iH co O' O' CO CM

m CM

a> o • • i • • • <6 oo CM 1 1 t-H CM co t-H ST t“H CO m co rH

t-H CO OO 1 rH 1 l CO t-H I III

03 a)oo 0 v.O

rH <3- O' CM CM CM 1 1 00 M3 o CM

rH

00

d o o co Mt CO 1—1

cr> o OO 00 CM c d • • 1 • • • * 03 MO i CM m mi M3 m

r-H

r-H CO

X1 1 o 1 rH1

co CM1 mi oo

rH

0)

CJ

00 l 1 a) > o m o CO m3- o M3 rH M3 M3 m X •H

T3

O o co Pm CT\

C r- CT> i 1 O' O'* rH CO T3

03 ms- • • • • • • -)C TO

OC i CN r-H co LO co CM r>. i 1 CN CM 00 o C T3 l CM r-H i CM 1 r-H CO <u | i »H •H o C «*H 0) iH 1 0) O X 0) CO d Cl

00 <r LOm t-H CM O' O' O' O' CN r-H r-H 00 03 03 CO c 0 o • • o CO 'd- o- M0 O' 'o m <r M3 lo 0) c

03 o CM o CN

X 03

C

CO • M3 i CN o m M3 **d* 1 CM O' MO CN r-H

M 03

O r-H CN i r-H 1 1 i P'

O

x i u u o

•u

u

03 03 u X. o O m O O' M3 00 o CO CO Mf o o •u CM r-H o CM in O' M3 O' M3 M3 M3 MS’ X o

TO o o • 0)

0) o CN rH r-H r-H MT r-H r-H O' 1 t-H

m oo CN CN iJ •u 0£ CO • <r CM co i i 1 CM 1 rH 0) I II T3 W (1) C_) M 2 D w CO

0) ^d- CM co rH M3

m M3 O' CN CN 03 0) 00 00 Mf CN CO CN CM o M3 >d- r-H in CN W a> d O o • B

03 <T CN r-H co

m

m M3 r-H M3 CN r-H r-H

M i • o 1 i 1 i i M MT O CM Q r-H M3 H C_> 2W X

C_> 0) CN o m M3 00 CO vD cr> M3- Mf m oo 03 hJ CN CO 00 ms- o CM CM m in CO CN w

03 0 o • Pl *

a; <5- CN r-H CO vO r-H

m r-H MS’ co CM o O' in

03 i • m t-H r-H i CM 1 t-H l I I

03 z

(13 o <2

00

O 03

d 03

w 03

d

d T—(

03 r-H

X T3

•H a) 00 00 00

O 00 CN r-H ON o r-H M3 00 o r-H CN r-H Mf

•W T3

dd

Q

a CM vD r- 00 00 00 00 O' ON CN r-H r—1

0) •H m2 01 < z 'd- vd- ^3- ^d- M3- “d- <T <r

m VO M3

o) o > 2 X o CJ o CJ o CJ

U

u

U CJ o CJ

O

X

d •rl 03

C/3

H o O hJ

18
NBS-1 14A (REV. 7-73)

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO. MCCA Retroref lectance No. 5

2. Gov’t Accession

No.

3. Recipient’s Accession No.

4. TITLE AND SUBTITLE

Manufacturers Council on Color and Appearance

COLLABORATIVE REFERENCE PROGRAM, COLOR AND APPEARANCE

Retroref lectance , Report No. 5

5. Publication Date 11/6/78

6. Performing Organization Code

7. AUTHOR(S)

J. Horlick, J. Stevenson

8. Performing Organ. Report No. NBSIR 78-1355

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, D.C. 20234

10. Project/Task/Work Unit No. 7825578

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 Manufacturers Council on Color

and Appearance.

13. Type of Report & Period Covered

Final

14. Sponsoring Agency Code

15. SUPPLEMENTARY NOTES

(

16. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant

bibliography or literature survey, mention it here.)

Collaborative Reference Programs provide participating laboratories with the means for checking periodically the level and uniformity of their testing in

comparison with that of other participating laboratories. An important

by-product of the programs is the provision of realistic pictures of the state

of the testing art. This is one of the periodic reports showing averages for

each participant, within and between laboratory variability, and other information for participants and standards committees.

17. KEY WORDS (six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name; separated by semicolons)

Collaborative reference program; Gloss; Laboratory evaluation; Precision;

Reference samples; Testing calibration.

18. AVAILABILITY |

1 Unlimited 19. SECURITY CLASS

(THIS REPORT)

21. NO. OF PAGES

1 y

For Official Distribution. Do Not Release to NTIS

UNCLASSIFIED 18

1

! Order From Sup. of Doc., U.S. Government Printing Office Washington. D.C. 20402. SD Cat. No. C13

20. SECURITY CLASS

(THIS PAGE)

22. Price

1 Order From National Technical Information Service (NTIS)

Springfield, Virginia 22151 UNCLASSIFIED

U S COMM- D C 29042-P74