This method is used for the determination of dichlorofluormethane. The sample is collected on charcoal sorbent tubes, desorbed with carbon disulfide, and analyzed by GC/FID. The working range is 120 to 1500 ppm (500 to 6300 mg/m³) for a 2 L air sample. NOTE: This method revises Method S109
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | At least 7 days from sampling to analysis if kept at 25°C |
| Preservatives: | Store at 25°C and separate front and backup tubes during shipment to avoid migration. |
| Required Preps: | Solid sorbent tubes: 2 coconut shell charcoal tubes, 400 mg/200 mg, 10cm x 8mm OD x 6mm ID |
| Collection Method: | Solid sorbent tubes: .25 - 3 L @ 0.01 - 0.05 L/min. |
| Analytical Methodology: | GC/FID |
| Documentation: | 
2516
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Dichloromonofluoromethane | CHCl2F |
75-43-4 |
0.05 |
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.