Asbestos analysis methods for carpeting samples, 1993

NYC 9/11 Public Portal Document

TECHNICAL REPORT DATA (Pleate read Imtruclions on lite revei^ before eompleif~; 1. REPORT NO. 3. 3.! PB93-'19«55 I EPA/600/J-93/167 4. TITLE ANO SUBTITLE S. REPORT DATE

METHODS FOR THE ANALYSIS OF CARPET SAMPLES-FOR-ASBESTQ S. PERFORMING ORGANIZATION CODE

7. AUTHORISI 1 O 8. PERFORMING ORGANIZATION REPORT NO. Jim R. Millette'^ Kim A. Brackett Patrick J. Clark^ R.K. Mheeles^______________ __ 9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT NO. 1. MVA, Inc. 5500 Oakbrook Pkwy. #200 Norcross, GA 30093 2. IT Corp. 11499 Chester Rd., Cincinnati, OH 45246 11. CONTRACT/GRANT NO. 3. U.S. EPA 26 W. Martin Luther King Dr., Cincinnati, OH 45268 12. SPONSORING AGENCY NAME ANO ADDRESS 13. TYPE OF REPORT AND PERIOD COWERED Risk Reduction Engineering Laboratory--Cincinnati, OH Final ilnurnal flrtirlp_____ 14. SPONSORING AGENCY CODE Office of Research and Development' U.S. Environmental Protection Agency Cincinnati, OH 45268' EPA/600/14 18.SUPPLEMENTARY NOTES Projcct Officer = Patrick Clark (513) 569-7561; "Environmental Choices - Technical Supplement", Volume l(2):21-24, March/April 1993 _________________________________________________________________ ABSTRACT

Because of the nature of carpet pile, no samples can be directly prepared.from carpet for analysis by transmission electron microscopy (TEM). Two indirect methods are currently used by laboratories when preparing samples for measuring the amount of asbestos present in carpet material. One is an ultrasonic shaking technique which requires that a portion of the carpet'be cut and sent to the laboratory. The other is a micro-vacuuming-; technique which has been used generally in the assessment of asbestos in settled dust in buildings. It is not destructive to the carpet. Both methods utilize TEM to identify, measure and count the asbestos fibers found. Each can provide important but different information when an assessment of the level of contamination of carpeting is being made.i^ .

17. KEY WORDS ANO DOCUMENT ANALYSIS DESCRIPTORS b.lDENTIFIERS/OPEN ENDED TERMS c. COSATI FieldZGtoup

Asbestos Asbestos Transmission Electron Microscopy GS-.-Minerals) Carpet RT- Sertentine) Indirect Preparation •lectron Microscopy GS-Microscopy) RT-Microanalysis) ’articulate Sampling jl?’i!l)). OF PAGES 18. DISTRIBUTION STATEMENT 19. SECURITY CCXSS UNCLASSIFIED______ 6 RELEASE TO PUBLIC 20. SECURITY, CLASS {TtliTpugfl 22. PRICE

UNCLASSIFIED EPA Form 2220-1 (Ro*. 4-77) PREVIOUS EDITION is OBSOLETE

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