Accurate, Cost-Effective Chemical Analysis and Monitoring

Advanced Chemical Sensors, Inc.
Technical Information Sheet

Nitric Oxide and Nitrogen Dioxide Vapor Monitor
Catalog No. NO-10

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) Nitric Oxide 25 25 25
Nitrogen Dioxide 3 N/A N/A
STEL/CEIL (ppm) Nitric Oxide N/A N/A N/A
Nitrogen Dioxide 5 5 1

Sampling Medium: Chemically Activated Molecular Sieve
Method of Analysis: Visible Adsorption Spectrophotometry
Reference Method: NIOSH Method 6014
Recommended Sampling Time: 15 minutes to 8 hours
Minimum Level of Quantitation: Nitric Oxide: 0.5 ppm for 8 hours
Nitrogen Dioxide: 0.2 ppm for 8 hours
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: Better than +/1 17% at 2 ppm for 8 hours
Storage Conditions: Maximum shelf life one year.
Recommended Holding Time: Two weeks prior to analysis.
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