Compass Cryogenics Vapor Monitor can be worn as a badge near the breathing zone to measure personal exposure, or placed in a room to measure area concentration.
Occupational safety standards are based on personal exposure monitoring of each employee who may be exposed to the vapor as a regular part of their job. Periodic monitoring of personnel and room concentrations is recommended.
| Exposure Limits | ACGIH | OSHA | NIOSH |
|---|---|---|---|
| TWA (ppm) | 1 | 1 | <0.1 |
| STEL/CEIL (ppm) | N/A | 5 | 5 |
| Sampling Medium: | Chemically Activated Carbon Molecular Sieve Adsorbent |
|
Method of Analysis: |
Gas Chromatography with Electron Capture Detector |
|
Reference Method: |
OSHA Method 50 |
|
Recommended Sampling Time: |
15 minutes to 8 hours |
|
Minimum Level of Quantitation: |
0.1 ppm for 8 hours 0.3 ppm for 15 minutes |
|
Interferences: |
Alcohols, aldehydes, and ketones will not interfere. No interferences are known. |
|
Effect of Temperature: |
Less than 10% for each 10 °C variation from 24 °C |
|
Effect of Humidity: |
No effects detected at 30% RH to 92% RH. |
|
Overall System Accuracy: |
9.2% at 1.0 ppm for 8 hours 13% at 5.0 ppm for 15 minutes |
|
Storage Conditions: |
Maximum shelf life one year. |
| Recommended Holding Time: | Two weeks prior to analysis. |
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