| Main Title |
Sampling and Analysis of Asbestos Fibers on Filter Media to Support Exposure Assessments: Scoping Effort. |
| Author |
Vallero, D. A. ;
Kominsky, J. R. ;
Beard, M. E. ;
|
| CORP Author |
Environmental Quality Management, Inc., Cincinnati, OH. ;Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.;Environmental Protection Agency, Washington, DC. Office of Research and Development. |
| Publisher |
Sep 2007 |
| Year Published |
2007 |
| Report Number |
EPA/600/R-07/113; NERL-RTP-HEASD-07-082; |
| Stock Number |
PB2007-114770 |
| Additional Subjects |
Asbestos ;
Fibers ;
Hazardous materials ;
Exposure ;
Chemical analysis ;
Sampling ;
X-ray diffraction ;
Electron microscopy ;
Physical properties ;
Membranes ;
Esters ;
Celluloses ;
Polycarbonates ;
Filters ;
Detection ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB2007-114770 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
68p |
| Abstract |
Methods for the analysis of asbestos and other fibers in air, water, dust, and bulk materials are reviewed and summarized. Techniques commonly used for analysis of these fibers include phase contrast microscopy, polarized light microscopy, x-ray diffraction spectrometry, scanning electron microscopy, and transmission electron microscopy. The principles of qualitative and quantitative analysis for each technique are reviewed. Fiber counting protocols for each method are also described. Fibers are typically identified by their chemical and physical properties and distinguished by measurement of their length, width (or diameter) and the ratio of their length to width. Collection media for aerosols of fibers are usually membrane filters of polycarbonate or mixed cellulose ester. Pore sizes usually range from 0.4 to 1.2 mm. Data comparing the relative efficiency of each filter type and pore size is sparse. Experiments to determine the relative efficiency for these filters are proposed. |
| Supplementary Notes |
See also PB90-274283. Sponsored by Environmental Protection Agency, Washington, DC. Office of Research and Development. |
| Availability Notes |
Also available on CD-ROM. Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| Category Codes |
68; 99A; 71I |
| NTIS Prices |
PC A05/MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
035501390 |
| Origin |
NTIS |
| Type |
CAT |
