This method is for the collection and analysis of ethyl methacrylate and methyl methacrylate. The sample is collected on an XAD-2 tube. After collection, the sample is desorbed with 2mL of carbon disulfide and analyzed by GC/FID (flame ionization detector).
The working range of the method is 2.4 to 270 ppm (10 to 1100 mg/m³) for a 3-L air sample.
NOTE: This method updates NMAM 2537, Issue 2 (4th ed.) which previously revised NIOSH Method S43.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | 7 days from sample collection to analysis if kept at 25°C and 31 days if samples are kept at 5°C. |
| Preservatives: | Ship samples using dry ice. |
| Required Preps: | XAD-2, 200/400mg (SKC 226-30-06) |
| Collection Method: | The method recommends a 0.01 - 0.05 L/min. flow rate and a 1 - 8L sample collection volume. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
2537
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Methyl methacrylate | C5H8O2 |
80-62-6 |
0.4 |
μg |
| Ethyl methacrylate | C6H10O2 |
97-63-2 |
0.5 |
μg |
* 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.