v>EPA
United States
Environmental Protection
Agency
Office of
Toxic Substances
Washington DC 20460
EPA-560/13-80-23
August, 1980
Toxic Substances
Asbestos -
Containing
Materials
in School
Buildings:
Bulk
Sample
Analysis
Quality
Assurance
Program
-------
EPA 560/13-80-23
August 1980
ASBESTOS-CONTAINING MATERIALS
IN SCHOOL BUILDINGS: BULK SAMPLE
ANALYSIS QUALITY ASSURANCE PROGRAM
By
E. P. Brantly, Jr., and D. E. Lentzen
Research Triangle Institute
Research Triangle Park
North Carolina 27709
Contract No. 68-01-5848
Task Manager: Cindy Stroup
Project Officer: Joseph Carra
Design and Development Branch
Survey and Analysis Division
Office of Pesticides and Toxic Substances
Environmental Protection Agency
Washington, DC 20460
-------
Disclaimer
This document has been reviewed and approved for publication by the
Office of Testing and Evaluation, Office of Pesticides and Toxic Substances,
U.S. Environmental Protection Agency. Approval does not signify that the
contents necessarily reflect the views and policies of the Environmental
Protection Agency, nor does the mention of trade names or commercial
products constitute endorsement or recommendation for use.
-------
CONTENTS
Page
1. Introduction 1
2. Procedures 2
3. Results 3
4. Plans 4
Appendixes:
Appendix A: Instructions and Reporting Form 5
Appendix B: Reference Reports 9
Appendix C: Reports to Laboratories 14
Appendix D: Commercial Laboratories 16
Appendix E: Laboratory Data 20
11
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ASBESTOS-CONTAINING MATERIALS IN SCHOOL BUILDINGS:
BULK SAMPLE ANALYSIS QUALITY ASSURANCE PROGRAM
1. INTRODUCTION
Growing public concern with the effects of exposure to asbestos fibers
has resulted in a greatly increased demand for laboratory analyses to deter-
mine the content of bulk insulation samples. In the course of the Environ-
mental Protection Agency asbestos-in-schools program, many differences have
been noted in laboratory analytical services contracted for by public school
systems. Discrepancies among laboratories may be attributed to variations in
analytical methods, lack of appropriate reference standards, and inadequate
reporting of analytical results.
Polarized light microscopy (PLM) is the EPA method of choice* for detecting
asbestos in bulk insulation samples. To facilitate the public's contact with
PLM service laboratories, a list of commercial laboratories claiming capability
in PLM analysis was made available to EPA regional asbestos coordinators,
state asbestos contacts, and to the public upon request via a toll-free number
established to provide technical information on sampling and analysis of
insulation materials.
A quality assurance (QA) program was initiated to qualify, to a limited
extent, the services provided by the listed commercial laboratories. All
laboratories listed were invited to participate in the QA program. Laboratories
accepting were provided with four characterized samples and their analytical
reports compared with reference analyses. This was not an accreditation
program and did not seek to certify or endorse participating laboratories. A
performance rating based on a fairly lenient criterion was determined for each
laboratory and was included on the updated laboratory list. Laboratories had
been notified at the start of the project that such a rating would be made.
Participation in the program was required for laboratories to be included on
the final published listing.
Noncommercial laboratories identified by EPA regional officials, includ-
ing state health departments and universities, were offered the same samples
*Asbestos-containing materials in school buildings: A guidance document,
EPA/OTS #C00090, March 1979.
-------
and reporting forms. Participation by noncommercial laboratories was also
voluntary and their results will not be available to the public.
2. PROCEDURES
2.1 Reporting Form and Instructions
Instructions and a reporting form developed for laboratory use in communi-
cating analytical results are included as Appendix A. The form satisfies
various information needs, including identity of asbestos and nonasbestos
fibers, analytical method(s) used, quantisation procedures used, and quality
control measures employed.
2.2 Selection and Distribution of Samples
Four bulk samples were sent to each laboratory. Two contained asbestos
fibers, anthophyllite and chrysotile, and two were nonasbestos fiber material,
mineral wool and fiberglass, commonly found in insulations. The samples were
doublebagged, coded, and packaged with a reporting form and instructions for
analysis. Sample packages were mailed on December 28, 1979, to all laboratories
then on the listing.
2.3 Reference Reports
Analytical reports were obtained from two reference laboratories, Battelle
Columbus Laboratories of Columbus, Ohio, and the Bureau of Mines, U.S. Depart-
ment of the Interior, Avondale, Maryland. These are included as Appendix B.
Reference report data were the basis for comparison in determining a laboratory's
performance rating and were included on the reports to laboratories.
2.4 Quantitation
Estimates were provided by the laboratories of the relative amounts of
sample constituents. These were averaged for each sample lot, disregarding
errors in fiber identification. Means and standard deviations were included
on reports to the laboratories. Because of the lack of an accepted quantita-
tion procedure, values reported were not used in rating laboratory performance.
The distributions of quantitative estimates were recorded on histograms
in 5 percent intervals. The histograms were included on individual reports to
allow laboratories to place themselves within the distribution.
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2.5 Reports to Laboratories
Reports were issued to individual laboratories on March 25, 1980 (commer-
cial), and April 3, 1980 (noncommercial). Reports included the results of
reference analyses, data reported by the individual laboratory, and summary
data on quantitative estimates. An example of the reports to laboratories is
included as Appendix C.
2.6 Performance Rating
Laboratory performance was assessed on the basis of correct identification
of "positive" and "negative" samples. Reductions of the all-correct (4/4)
score were made only for the reporting of false positives (nonasbestos sample
reported as containing asbestos) or false negatives (no asbestos reported in
an asbestos-containing sample), and not for the misidentification of individ-
ual asbestiform mineral species. The criterion, though lenient, recognizes
the basic concern of the public—whether or not asbestos fibers are present in
a submitted sample. Environmental Consulting and Testing Services and Prince-
ton Testing Laboratories were assigned scores of 3/4. All other commercial
laboratories scored 4/4.
3. RESULTS
Seventy-one percent of the laboratories contacted reported results,
including 52 of 72 commercial labs and 23 of 34 noncommercial labs. Results
included were received on or before January 25, 1980. Participating commercial
laboratories are listed in Appendix D. A listing of reported results (fibrous
materials only) is included as Appendix E.
For the 300 (75 x 4) samples analyzed, no false negatives and only two
false positives were reported. Environmental Consulting and Testing Services
of Cherry Hill, NJ, and Princeton Testing Laboratory of Princeton, NJ, incorrec-
tly identified mineral wool as crocidolite and amosite, respectively. All
other laboratories identified the sample as either mineral wool, fiberglass,
or glass wool. Although the distinction between these materials is apparent
to an experienced analyst, it was not deemed important to the present evaluation
program.
Anthophyllite-asbestos was frequently misidentified as either amosite (15
labs) or tremolite (10 labs). This was most likely due to unfamiliarity with
anthophyllite-asbestos because no standard reference samples exist and it is
not commonly found in insulation materials. Closer attention to extinction
3
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angles in analysis and use of the samples as a reference may alleviate this
problem in future samples received for routine analysis.
Fiberglass was identified as fiberglass, mineral wool, or glass wool by
all laboratories. Chrysotile was properly identified by all laboratories.
However, laboratories are experienced in identifying chrysotile, as it is the
most common asbestos fiber found in insulation materials.
4. PLANS
The second round of the continuing QA program will start in August 1980,
and will also involve the distribution of samples and reporting of results of
PLM analysis. The list of commercial laboratories will be updated with perform-
ance ratings and participating laboratories following each round. Subsequent
rounds are anticipated quarterly. Future rounds will include samples of
asbestiform and nonasbestiform minerals as well as samples of insulation
materials removed from schools and private buildings across the country.
-------
APPENDIX A
INSTRUCTIONS AND REPORTING FORM
-------
ASBESTOS BULK SAMPLE ANALYSIS PROGRAM
Research Triangle Institute 800-334-8571, ext. 6746
INSTRUCTIONS:
1. Verify that this kit contains four bulk material samples containing
varying amounts of asbestos fibers, nonasbestos fibers, and other
materials. Unless the kit is incomplete or contains broken samples,
fill out and return the enclosed post card.
2. If this kit is incomplete or contains broken samples:
PHONE: 800-334-8571, ext. 6746
ASK FOR: Gene Brantly
Asbestos Bulk Sample Analysis Program
Research Triangle Institute
Research Triangle Park, NC 27709
3. Perform a complete analysis of each sample by polarized light
microscopy, with or without dispersion staining.
4. Record the requested information on a copy of the Results Reporting
Form. Final results of the analyses of all samples should be reported
on one form.
5. Fill in all blocks for each analysis performed, using zeros where
necessary. In categories offering numbered choices, write the
correct number in the appropriate block, followed by a percent
value or comment. All reported values should be expressed as
percentages of the total material in each sample. Reporting
forms with incomplete information will not be evaluated.
6. Include the laboratory identification number and sample identifi-
cation numbers on all Results Reporting Forms. The space labelled
"Sample Code Assigned by Laboratory" should be used for internal
quality control programs involving split samples.
Example Sample Labels: 2750-01-372
2750-01-149
2750-01-967
2750-01-730
Laboratory ID# 2750
Sample IDJ 01-372 01-149 01-967 01-730
7. Complete the reverse side of the Results Reporting Form.
8. Retain all samples for reference following receipt of the program
results and statistical summary.
9. Return the Results Reporting Form within 15 working days after
receipt of the sample kit.
Late Returns W111 Not Be Evaluated
-------
Results Reporting
Form
ASBESTOS BULK SAMPLE ANALYSIS PROGRAM
RETURN REPORTING FORM
WITHIN FIFTEEN WORKING DAYS
AFTER RECEIVING SAMPLES.
LATE RETURNS WILL NOT BE EVALUATED.
Laboratory 1.0. #
Sample I.D. #
Sample Coda Assigned by Laboratory
Analytical Method 1. PLM
(enter number) 2. PLM + dispersion staining
3. X-ray diffraction
Gross Sample Appearance 1. Homogeneous, fibrous
(enter number; note 2. Homogeneous, nonfibrous
color) 3. Heterogeneous, fibrous
4. Heterogeneous, nonfibrous
5. Heterogeneous, mixed
Sample Treatment 1. Homogenized
(enter number) 2. Untreated
3. Other, specify
Amount of Material Examined (nig)
Asbestos Present (enter 1. Amoshe
number and percent) 2. Chrysotile
3. Crocidolhe
4. Other, specify
Percent Total Asbestos Present in Sample
Other Fibrous 1. Fiberglass
Materials Present 2. Mineral Wool
(enter number and 3. Cellulose
percent) 4. Other .specify
Nonfbrous Materials Present (description and percent)
(Continued: Please provide requested information on reverse side of this form.)
-------
Description of Method of Quantitation
Description of Quality Control Program {e.g., ^slides/sample, ^splits/sat)
Comments
Analyst:
Confirmation by:
Report Reviewed by:
Address Correction Please:
8
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APPENDIX B
REFERENCE REPORTS
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HBatteile
Columbus Laboratorir*
505 King Avenue
Columbus. Ohio 43201
Telephone (614, 4^-h424
Telex 24-5454
January 21, 1980
Mr. D. Lentzen
Research Triangle Institute
P.O. Box 12194
Research Triangle Park, North Carolina 27711
Dear Mr. Lentzen:
The X-ray diffraction analyses of your four samples of insulation material
have been completed, with the results given in Table 1. Only Sample 2 and
Sample 4 produced diffraction patterns.
Sample 1 produced a single broad band between 3.6 X and 2.5 A with maximum
intensity near 2.9 A. Sample 3 produced a broader band from 4.9 A to 2.5 A
with a broad maximum centered at 3.2 A.
o
e diffraction patterns were taken using a Phillips vertical goniometer
fitted with a sample spinner and diffracted beam monochromater. A Phillips
standard focus Cu target X-ray tube was used to produce the incident beam.
The samples were mounted for analysis using double sided adhesive tape.
The sample spinner was used to reduce the effects of sample orientation.
The unused portion of your samples is enclosed. If you have any questions
regarding these analyses, please call me at (614) 424-5301.
Sincerely,
P. M. Schumacher
Chemist
Physico-chemical Systems
PMS/cln
Enclosure
10
50 Years Or Service
1929-1979
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TABLE 1
X-RAY DIFFRACTION OF ANALYSIS OF INSULATION MATERIAL
Sample Compound PDF// Pattern Strength
#1 No diffraction peaks - see text
#2 Mg3Si401Q(OH)2 (Talc) 13-558 Strong
(Mg, Fe)7Sig022(OH)2 (Anthophyllite) 9-455 Weak
#3 No diffraction peaks - see text
#4 Mg3Si205(OH)4 (Clinochrysotile) 27-1276 Strong
11
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United States Department of the Interior
BUREAU OF MINES
4900 LASALLE ROAD
AVONDALE, MARYLAND 20782
December 28, 1979
Dr. Donald Lentzen
Research Triangle Institute
P.O. Box 12194
Research Triangle Park, N.C. 27709
Dear Don:
The five reference asbestos samples submitted on December 10 have been
examined by optical microscopy and X-ray diffractometry for mineralogy
and purity. The results of this examination are given below.
Sample 1: Mineral wool composes over 98% of the sample.
Greater than 90% of the mineral wool fibers range
from 5 to 10 ym in width. The minimum width is
approximately 1 ym. Less than 5% of the particles
are glass globules or blebs.
Sample 2: This is a relatively impure sample with as much
nonasbestos material as asbestos. The major
constituents in order of abundance are chlorite,
talc, and anthophyl1ite. There are minor amounts
of tremolite and serpentine also present. The
anthophyl1ite is fibrous while the tremolite ranges
from blocky to slightly elongate. The chlorite
and talc appear as elongated plates, pseudomorphic
after the amphiboles.
Sample 3: This sample is composed of greater than 98% fiber-
glass. Over 90% of the fiberglass is 7 to 20 ym
in width with a minimum width of approximately 2 ym.
Less than 5% of the particles are glass blebs or
globules.
Sample k: Chrysotile composes greater than 95% of the sample
with 3% opaques, less than 1% platy minerals
(possibly antlgorlte-lizardlte) and less than 2%
others.
12
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Sample 5: This sample Is composed of over 95$ tremolite asbestos
(R-11) with 2% to k% carbonate. The tremolite is predominately
fibrous with only a small percentage being blocky.
Best wishes for the New Year.
Sincerely yours,
Will!air J. Cnmpbcll
Acting Research Director
13
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APPENDIX C
REPORTS TO LABORATORIES
14
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ASBESTOS BULK SAMPLE ANALYSIS PROGRAM
RESULTS OF ROUND 1
Laboratory:
Laboratory I.D. #:
Sample I.D.*:
Asbestos Present (%)
Laboratory report
Reference report
Other Fibrous Material (%)
Laboratory report
Reference report
0
0
100 mineral wool
98 mineral wool
75 anthophyllite
53 anthophyllite
0
0
0
0
95 fiberglass
98 fiberglass
95 chrysotile
95 chrysotile
0
0
Summary of Laboratories Reporting;
Mean % (Standard deviation)
Asbestos present
Other fibrous material
Distribution of Asbestos Quantitation
0(0)
96.1 (5.4)
53.0(19.3)
1.4(7.1)
0(0)
97.7 (4.0)
84.5 (17.4)
1.2(3.1)
Sample I.D. #: 801
Ji li 12.S 17.5 22.6 27.S
" *
PIHCENTAQS ASBESTOS REPORTED
Sample I.D. #: 854
a n
£ 12
£ 11
2 10
I
2.5 7.8
22J 27.8 32J H.S «Z5 47.8 S2J 87J «ZJ »7.S
KMCENTAOC ASIESTOS REPORTED
77.6 K.5 «7.» 92.5 97J
15
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APPENDIX D
COMMERCIAL LABORATORIES
16
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American Can Company
Safety & Industrial Hygiene Laboratory
U.S. Highway 22
Union, New Jersey 07083
American Microscopy Laboratory
D. 3410 12th Avenue E.
Tuscaloosa, Alabama 35405
Analytical Center, Inc.
P. 0. Box 15635
Houston, Texas 77020
Boeing Technology Services
9R-25
P. 0. Box 3707
Seattle, Washington 98124
Brewer Analytical Laboratories
311 Pacific Street
Honolulu, Hawaii 96810
C.E.D., Inc.
Environmental Microscopy International
135 West Cutting Blvd.
Richmond, California 94804
Casalina Associates, Inc.
47-345 Mahakea Road
Kaneohe, Hawaii 96744
Certified Testing Laboratories,
2905 East Century Boulevard
South Gate, California 90280
Inc.
Clayton Environmental Consultants, Inc.
25711 Southfield Road
Southfield, Michigan 48075
Colorado School of Mines
Research Institute
P. 0. Box 112
Golden, Colorado 80401
Goldblatt
407 N. Butrick St.
Waukegan, Illinois 60085
Continental Technical Services
Environmental Health Division
9742 Skillman
Dallas, Texas 75243
Department of Chemistry
New Jersey Institute of Technology
323 High Street
Newark, New Jersey 07102
Department of Geological Sciences
SUNY, New Paltz
New Paltz, New York 12562
Department of Geology
Illinois State University
Normal, Illinois 61761
Eastern Analytical Laboratories
One "A" Street
Burlington, Massachusetts 01803
EMS Laboratories
12563 Crenshaw Boulevard
Hawthorne, California 90250
EMV Associates, Inc.
Microanalysis Laboratory
15825 Shady Grove Road
Rockville, Maryland 20850
Environment/One Corporation
2773 Balltown Road
Schenectady, New York 12301
Environmental Consulting & Testing Services
P. 0. Box 3521
Cherry Hill, New Jersey 08034
Environmental Health Services, Inc.
5206 Lindbergh Blvd.
W. Carollton, Ohio 45449
Erie Testing Laboratories
2401 W. 26th Street
Erie, Pennsylvania 16506
Erlin, Hime Associates
811 Skokie Boulevard
Northbrook, Illinois 60062
GCA Corporation
Techology Division
Burlington Road
Bedford, Massachusetts 01730
17
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Geoscience Consultants, Inc.
P. 0. Box 341366
Coral Gables, Florida 33134
Hager Laboratories
12000 E. 47th Avenue
Denver, Colorado 80239
Health Science Associates
Suite B/C
10941 Bloomfield Street
Los Alamitos, California 90720
Herron Testing Laboratories
5405 Schaaf Road
Cleveland, Ohio 44131
IIT Research Institute
10 West 35th Street
Chicago, Illinois 60616
Industrial Analytical Laboratory
1523 Kalakaua Avenue
Suite 101
Honolulu, Hawaii 96826
Industrial Hygienics, Inc.
755 New York Avenue
Huntington, New York 11743
Industrial Testing Laboratories, Inc.
2350 Seventh Blvd.
St. Louis, Missouri 63104
Inter-City Testing & Consulting Corporation
P. 0. Drawer "0"
609 Middle Neck Road
Great Neck, New York 11023
Interscience Research
2614 Wyoming Avenue
Norfolk, Virginia 23513
Jesse H. Bidanset & Associates, Inc.
P- 0. Drawer "0"
609 Middle Neck Road
Great Neck, New York 11023
Law Engineering Testing Company
3301 Winton Road
Raleigh, North Carolina 27619
LTE Corporation
Environmental Analysis Lab Division
2030 Wright Avenue
Richmond, California 94804
Maryland Mineral Analysis Laboratory
Department of Geology
University of Maryland
College Park, Maryland 20740
MJH Associates
Mineralogical Consultants
13345 Foliage Avenue
Apple Valley, Minnesota 55124
Northrop Services, Inc.
P. 0. Box 12313
Research Triangle Park, North Carolina 27709
PEDCo Environmental, Inc.
11499 Chester Road
Cincinnati, Ohio 45246
Princeton Testing Laboratory
P. 0. Box 3108
Princeton, New Jersey 08540
R. J. Kuryvial & Associates
Mineralogy/Microscopy Consultants
12185 W. 29th Place
Lakewood, Colorado 80215
Southwestern Laboratories
P. 0. Box 10687
Dallas, Texas 75207
St. Paul Fire & Marine
Environmental Services Analytical Laboratory
494 Metro Square Building
7th and Robert Streets
St. Paul, Minnesota 55101
Sunbelt Associates, Inc.
6961 Mayo Road
New Orleans, Louisiana 70126
Thomas A. Kubic & Associates
8 Pine Hill Court
Northport, New York 11768
18
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Tri-State Laboratories, Inc.
54 Westchester Drive
Austintown, Ohio 44515
Truesdail Laboratories, Inc.
4101 N. Figueroa Street
Los Angeles, California 90065
United States Testing Company, Inc.
1415 Park Avenue
Hoboken, New Jersey 07030
Utah Biomedical Test Laboratory
520 Wakara Way
Salt Lake City, Utah 84108
Walter McCrone Associates, Inc.
2820 S. Michigan Avenue
Chicago, Illinois 60616
Wausau Insurance Companies
Environmental Health Laboratory
2000 Westwood Dr.
Wausau, Wisconsin 54401
19
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APPENDIX E
LABORATORY DATA
20
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CODING KEY FOR ABSAP PR INT-OUT
CO = commercial
NC = non-commercial
LAB = laboratory ID #
SAM - sample lot (1,2,3,4)
A1P + A2P = ALLP
01P + 02P = OSUMP
Method (METH)
0 = no information
1 = PLM
2 * PLM with dispersion staining
3 = PLM, confirmed by XRD
Treatment (TRT)
1 = homogenized
2 = untreated
3 = acid wash
4 =• ashed
5 = mortar and pestle
6 = particle picking
7 = rolled and quartered
Asbestos present (Al, A2)
1 = amosite
2 = chrysotile
3 = crocidolite
4 = anthophyllite
5 = actinolite
6 = tremolite
7 = "amphibole"
8 a "serpentine"
Other fibrous materials (01. 02)
1 = fiberglass
2 = mineral wool
3 = vegetable fiber (cotton, cellulose, paper)
4 = synthetic fiber (nylon, rayon, etc.)
5 = glass wool
6 » fibrous talc
7 = wollastonite
21
-------
ro
ro
LABORATORY VALUES
DBS L*B NCTH TRT At
t
2
3
4
5
6
7
" 8
Q
10
It
12
13
14
IS
16
17 2
Z o
2 0
1 0
2 0
1 0
Z 1
Z i
6 0
6 0
6 0
5 2
2 o
Z 0
t o
1 «
1 4
t 6
18 220
19 226
2o 220
21 220
22 I
23 |
2 0
2 6
24 220
25 1
Z 2
26 220
27 I
2 0
28 220
29 I
3o 2
3| 2
32 2
31 1
34 2
35 3
36 ]
37 1
38 0
39 |
40 1
11 2
"2 1
43 2
44 2
45 3
46 2
47 2
48 2
49 t
SO 2
C • *t
51 2
52 I
2 6
t 6
2 6
1 0
3 0
2 6
2 6
2 0
Z 0
0 0
2 0
I 0
2 0
2 0
7 o
1 o
t 0
2 o
1 0
1 0
3 0
2 o
2 6
1 0
AlP
0
0
0
0
0
75.0
80.0
0
0
0
T
0
0
0
0
0
0
0
0
0
0
0
0
0
T
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
^«Wt^»"
A2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AZP ALLP
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
75.0
80.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
01
2
2
t
2
2
0
0
Z
2
2
1
2
2
1
1
2
2
2
2
2
2
2
2
2
2
S
2
2
2
2
1
2
1
I
2
2
2
2
2
2
2
2
2
2
Z
Z
Z
2
2
2
I
2
01P
100.0
85.0
«s.o
100,0
97,0
0.0
0.0
85,0
80,0
90.0
87,5
95.0
50,0
95,0
95.0
100.0
100,0
95.0
100,0
100,0
30,0
95,0
95,0
95,0
98.0
96,5
100,0
95,0
99,0
98,0
75,0
99,0
95,0
100,0
98,0
100,0
99,0
100,0
100,0
100,0
90,0
94,0
95,0
95,0
98,0
70,0
100,0
98,0
100,0
100,0
97,5
'a. s
02
0
3
2
0
0
o
o
3
3
3
0
0
1
0
3
0
0
0
3
0
1
0
0
0
2
0
1
o.
3
0
0
0
0
0
0
3
0
0
3
0
0
3
0
3
0
0
02P
0,0
5,0
45,0
0,0
o.o
0.0
0.0
7,0
OSUMP
100,0
90
90
.0
.0
100,0-
97
0
0
92
8S
.0-
.0
.0 >
.0-
.0 •
t'l 9215
0,0
0.0
40,0
6.0
o.o
0.0
0.0
o.o
0,0
o.o
70.0
o.o
06
00
l.o
o.o
00
i.o
o.o
o.o
24.0
o.o
o.'o
2,0
o.o
o.o
0.0
00
0.0
o.o
1,0
0,0
0.0
*••
0,0
6.0
0,0
6.'o
0.0
O.o
87,5,
95.0.
90,0
95,0
95,0
100.0
100,0
95,0
100,0
100,0
100.0
95.0
95,0
95,0
99,0
96,5
100,0
96,
99,
It.
99,
99,
0
0
0
0
0
100,0
too,
100.
100.
99,
100.
too,
too.
0
0
0
0
0
0
0
90,0
n
9s|o
95.0
98,0
70,0
100,0
98,0
100,0
100,0
97, S
)
-------
ro
CO
003
53
So
55
56
57
58
54
60
61
62
63
6a
65
66
67
68
69
70
71
72
73
74
75
76
77
70
79
80
81
82
«3
8a
8S
86
87
88
89
90
91
92
93
9a
95
96
97
98
99
100
I0|
102
103
104
LAB HETH
2
2
2
2
2
2
2
2
3
3
1
2
1
2
1
2
I
2
2
J
1
3
2
3
Z
2
3
2
2
2
1
2
2
2
TRT
2
2
I
1
2
t
2
i
1
2
2
2
2
2
2
2
1
2
1
3
t
2
2
2
0
t
1
2
2
7
1
1
2
1
1
3
2
2
1
Al
6
7
1
4
1
1
3
a
4
4
1
4
1
4
4
1
1
4
4
4
4
4
4
4
4
4
4
6
4
6
f
4
1
4
4
8
1
1
J
4
4
4
4
3
4
6
4
4
0
6
4
4
A1P
60.0
SO.O
40.0
75.0
22.5
80.0
90.0
50.0
50.0
40.0
45.0
93,0
60.0
SO.O
60.0
40.0
65.0
60.0
SO.O
62.5
95.0
62.5
40.0
60.0
50.0
87.5
15.0
70.0
50.0
50.0
40.0
SO.O
90.0
50.0
23.0
SO.O
SO.O
20.0
30.0
74.0
70.0
25.0
45.0
40.0
20.0
30.0
SO.O
60.0
40.0
49.0
40.0
65.0
_Nlc
A2
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
t
2
0
LABORATORY VALUES
SAM«2 -
A?P
O.'O
O.'O
15.0
O.'O
0,0
0.0
O.'O
0,0
o>
o.o
0,0
0,0
0,0
00
ojo
ojo
0.0
0.0
0^0
0,0
2*3
0>
0,0
0,0
•if
0,0
0,0
o.o
o.o
0,0
o;o
0,0
0,0
0>
0,0
o.o
o.o
0,0
o'J
olo
o.o
0,0
o.o
1.0
2:0
o.o
ALLP
60,0
so.o
55.0
79.0
«.s
00.0
90,0
so.o
50.0
40.0
45.0
93.0
60.0
so.o
60.0
40.0
65.0
60.0
so.o
62.5
'5.0
62.5
40.0
60.0
52.5
87.5
15,0
70.0
SO.O
SO.O
40,0
so.o
90.0
so.o
23.0
SO.O
so.o
20.0
10.0
70.0
70.0
25.0
45.0
40.0
20.0
30.0
SO.O
60.0
40,0
50.0
42.0
6S.O
01
0
0
I
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
9
0
0
t
OIP
0
0
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
10
0
0
0
0
0
0
0
0
0
0
50
0
0
0
0
0
0
0
0
3
0
02
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
3
0
0
02P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
03UMP
0
0
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
I
0
0
0
0
0
0
0
0
0
10
0
0
0
0
0
0
0
0
5
-------
ro
-P.
LABORATORY VALUES
OBa
105
106
107
108
109
Ito
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
13o
132
133
134
135
136
137
138
139
140
142
113
144
145
1
-------
LABORATORY VALUES
ro
en
I)BS
157
156
159
160
161
162
163
160
1*5
166
167
166
169
I/O
171
172
173
170
175
176
177
176
179
160
161
182
163
iea
165
|66
187
|66
169
ivo
191
192
193
.|90
195
196
197
198
J99
200
201
202
203
290
205
206
20T
208
LAB METH
2
2
2
2
2
2
2
2
2
1
1
2
1
2
1
2
1
2
2
2
1
3
3
1
1
0
1
1
2
I
2
2
3
2
2
2
1
2
i
2
TRT
2
2
1
1
t
2
2
6
6
6
5
t
2
1
t
1
1
2
1
2
2
1
2
2
2
2
2
2
2
1
2
1
3
1
2
2
2
0
1
1
2
2
7
I
t
2
1
1
3
2
Z
1
At
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
i
2
2
2
2
2
0
2
2
2
*|P
95.0
90.0
65.0
95.0
96.0
90.0
95.0
75.0
90.0
70.0
95.0
93.0
60.0
95.0
96.0
60.0
loo.o
95.0
96.0
99.5
98.0
80.0
98.0
95.0
97.5
82.5
10.0
95.0
92.5
85.0
95.0
99.0
97.0
30.0
80.0
90.0
95.0
01.0
65.0
65.0
92.5
90.0
90.0
75.0
100.0
65.0
95.0
97.0
60.0
85.0
50.0
90.0
<--.N«.3
*2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
A2P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ALLP
95.0
90.0
65.0
95.0
9S.O
90.0
95.0
75.0
90.0
70.0
95.0
93.0
60.0
95.0
96.0
60.0
100.0
95.0
96.0
99.5
9S.O
80. 0
98.0
95.0
97.5
82.5
10.0
95.0
92.5
65.0
95.0
99.0
97.0
JO.O
60.0
90.0
95.0
41.0
65,0
65.0
93.5
90.0
90.0
75.0
100.0
65.0
95,0
97.0
60.0
85.0
50,0
9a.O
01
0
0
t
0
0
0
0
i
1
1
0
0
0
0
0
0
0
0
0
0
I
0
0
0
0
0
0
0
0
3
t
0
0
1
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
2
0
01P
o.o
0.0
is.o
o.o
0.0
o.o
o.o
5.0
2.5
2.5
o.o
o.o
o.o
o.o
o.o
o.o
o.o
0.0
o.o
o.o
2.0
o.o
o.o
o.o
o.o
0.0
o.o
o.o
0.0
7.5
».o
o.o
o.o
10.0
o.o
0.0
o.o
o.o
o.o
0.0
0.0
0.0
0.0
5.0
o.o
o.o
0.0
o.o
0.0
0,0
10.0
o.o
02
0
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
3
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Off
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
OSUHP
0,0
0,0
15,0
0,0
0,0
0,0
0,0
5,0
2,5
2.5
0,0
0,0
0,0
0,0
0,0
0.0
0,0
0.0
0,0
0,0
2.0
0,0
0,0
0,0
0.0
0,0
0,0
0,0
0,0
7,5
2,0
0.0
0.0
10.0
0,0
0,0
0,0
0,0
0,0
0,0
0.0
0,0
0,0
5,0
0.0
0.0
0.0
0.0
0,0
0,0
10,0
0,0
-------
083
t
Z
J
4
C_NC
CO
CO
CO
CO
SAM
1
2
J
4
0.00i)o
84.5«8i
DESCRIPTIVE SUTISTICS
M_AUP M-U3UMP S_*LLP 3_OSl)MP
O.OOUO 96.1100 o.OOOQ
l.«^ll I
97,6827
5.1670
r,1465
o.OOOO 1.9668
17.4410 1,0647
N_*LIP
SO
S2
SZ
52
N..OSUMP
SO
52
52
S2
ro
-------
TECHNICAL REPORT DATA
(Please read Instructions on the reverse before completing)
1.
4.
7.
9.
REPORT NO.
EPA 560/13-80-23
TITLE AND SUBTITLE
Asbestos-Containing Mate
Bulk Sample Analysis Qua
AUTHOR(S)
E.P. Brantly, Jr. and D.
PERFORMING ORG "VNIZATION NAME Af>
Research Triangle Instit
P.O. Box 12194
Research Triangle Park,
12. SPONSORING AGENCY NAME AND ADC
Survey and Analysis Divi
Office of Pesticides anc
.U.S. Environmental Prote
Washington, DC 20460
2. 3. RECIPIENT'S ACCESSION>NO.
5. REPORT DATE
rials in School Buildinas: August 1980 preparation
lity Assurance Program 6. PERFORMING ORGANIZATION CODE
date
8. PERFORMING ORGANIZATION REPORT NO.
E. Lentzen
JD ADDRESS 10. PROGRAM ELEMENT NO.
,ute
11. CONTRACT/GRANT NO.
NC 27709 Contract No. 68-01-5848
-
JRESS 13. TYPE OF REPORT AND PERIOD COVERED
sion Final
1 Toxic Substances 14- SPONSORING AGENCY CODE
jction Agency
15. SUPPLEMENTARY NOTES
16. ABSTRACT
EPA has initiated a quality assurance (QA) program for laboratories
claiming capability in the polarized light microscope (PLM) analysis of
bulk samples for asbestos. Commercial and non-commercial laboratories
participating in the program received samples of four fibrous materials:
chrysotile, anthophyllite, fiberglass, and mineral wool. Laboratories
had difficulty identifying anthophyllite and two false positives were
reported for the mineral wool sample. All laboratories properly identi-
fied chrysotile. A performance rating based on proper identification
of positive(asbestos) and negative(non-asbestos) samples was scored for
and reported to the commercial laboratories. Reference reports were
sent to all participating laboratories. Continuation of the program
with future sample sets is anticipated.
17
a.
18
DESCRIPTORS
Asbestos
Serpentine
Amphi boles
, DISTRIBUTION STATEMENT
Release to public
KEY WORDS AND DOCUMENT ANALYSIS
b.lDENTIFIERS/OPEN ENDED TERMS C. COSATI Field/Group
Bulk Sample Analysis
19. SECURITY CLASS (This Report) 21. NO. OF PAGES
Unclassified 27
20. SECURITY CLASS (This page) 22. PRICE
Unclassified
EPA Form 2220-1 (9-73)
27
------- |