This method is designed to determine quartz in respirable coal mine dust samples. Samples are collected using a cyclone and preweighed filter and analyzed using infrared spectrophotometry. The working range is 0.03 to 2 mg/m³ for a 1000-L sample.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | N/A |
| Preservatives: | N/A |
| Required Preps: | Tared 37 mm, 5 µm PVC filter |
| Collection Method: | Cyclone and preweighed filter, 300-1000 L @ 0.1 mg/m³, variable flow rates |
| Analytical Methodology: | Infrared Spectrophotometry |
| Documentation: | 
7603
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Silica, crystalline | SiO2 |
14808-60-7 |
10 |
µg/sample |
* 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.