This method is for the determination of carbon disulfide from workplace air. The sample is collected on a coconut shell charcoal tube and sodium sulfate drying tube. The drying tube can be kept attached during shipment to the lab. The drying tube is discarded and the charcoal tube is desorbed in toluene and analyzed by GC/Sulfur FPD (flame photometric detector). Better sensitivity may be obtained by using a higher sampling rate if high humidity is not present.
This method has been used extensively in the viscose rayon industry and at carbon disulfide production facilities. The working range of the method is 10 to 200 mg/m³ (3 to 64 ppm) for a 5 L air sample and is applicable to ceiling determination.
NOTE: This method revises Methods S248 and 1600 (2/15/84) and replaces P&CAM 179.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | 1 week from sampling to analysis if samples are kept at 25°C and 6 weeks from sampling to analysis if samples are kept at 0°C |
| Preservatives: | Store samples at 0°C or 25°C. |
| Required Preps: | Coconut shell charcoal tube, 100 mg/50 mg (SKC 226-01). Drying tubee, 250 mg (SKC 226-44) |
| Collection Method: | The method recommends a 0.01 - 0.2 L/min. flow rate with a 2 - 25 L sample collection volume. |
| Analytical Methodology: | GC/Sulfur FPD |
| Documentation: | 
1600
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Carbon disulfide | CS2 |
75-15-0 |
0.02 |
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.