Accurate, Cost-Effective Chemical Analysis and Monitoring

Advanced Chemical Sensors, Inc.
Technical Information Sheet

Ethylene Oxide Vapor Monitor
Catalog No. E-50

ACS 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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