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) | 10 | N/A | N/A |
| STEL/CEIL (ppm) | N/A | 50 | 2 (1hr) |
Sampling Medium: Activated High-Purity Carbon Molecular Sieve
Method of Analysis: Gas Chromatography
Reference Method: US OSHA Method 5
Recommended Sampling Time: 15 minutes to 8 hours
Minimum Level of Quantitation: 0.2 ppm for 8 hours
7 ppm for 15 minutes
Interferences: 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: 11% at 10 ppm for 8 hours
16% as 50 ppm for 15 minutes
Storage Conditions: Maximum shelf life one year.
Recommended Holding Time: Two weeks prior to analysis.
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