This method is useful for the qualitative identification of asbestos and the semi-quantitative determination of asbestos content of bulk samples. The method measures percent asbestos as perceived by the analyst in comparison to standard area projections, photos, and drawings, or trained experience. The method is not applicable to samples containing large amounts of fine fibers below the resolution of the light microscope NOTE: NVLAP requires the use of EPA Method 600 for bulk asbestos determination by PLM.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | N/A |
| Preservatives: | N/A |
| Required Preps: | N/A |
| Collection Method: | Bulk sample, 1-10 g |
| Analytical Methodology: | Stereo and Polarized Light Microscopy with Dispersion Staining |
| Documentation: | 
9002
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Asbestos | 1332-21-4 |
1 |
% | |
* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.