This method is for the determination of the total dust concentration (particulates) using gravimetric determination. After sample collection the filter is dried to a constant weight and the total particulate is determined by difference with the initial tared filter weight.
The method may be applied to fibrous glass in addition to the other ACGIH particulates not otherwise regulated. The method is non-specific meaning it does not distinguish between the types of particulates.
The working range of the method is 1 to 20 mg/m³ for a 100 L air sample.
NOTE: This method replaces Method S349.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | The method states the samples are stable indefinitely. |
| Preservatives: | None specified in the method. |
| Required Preps: | Tared 37 mm PVC filter |
| Collection Method: | Filter sampler, 1 - 2 L/min., 7 - 133 L @ 15 mg/m³ |
| Analytical Methodology: | Gravimetric (Filter Weight) |
| Documentation: | 
0500
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Particulates | 0.03 |
mg | ||
* 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.