This method is for the collection and analysis of Portland cement (total dust) from workplace air. The sample is collected on a tared 37mm PVC filter. After collection, the total particulates are determined by gravimetric analysis. Then the particulate is dissolved in THF (tetrhydrofuran) and redeposited on a sliver (AG) membrane filter and analyzed by XRF (x-ray fluorescence) as a confirmation.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | None specified in the method. |
| Preservatives: | None specified in the method. |
| Required Preps: | 37mm PVC filter with a 5 micron pore size |
| Collection Method: | The method recommends a 1 L/min. flow rate with a 240L sample collection volume. |
| Analytical Methodology: | XRF |
| Documentation: | 
ID-207
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Particulates | 0.6 |
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.