Accurate, Cost-Effective Chemical Analysis and Monitoring

Advanced Chemical Sensors, Inc.
Technical Information Sheet

o-Phthalaldehyde Vapor Monitor
Catalog No. OP-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) N/A N/A N/A
STEL/CEIL (ppm) N/A N/A N/A

Sampling Medium: Chemically Activated Adsorbent to form a derivative of o-phthalaldehyde
Method of Analysis: Liquid Chromatography
Recommended Sampling Time: 15 minutes to 8 hours
Minimum Level of Quantitation: 0.0002 ppm for 8 hours
0.06 pm for 15 minutes
Interferences: No interferences are known.
Alcohols, other aldehydes and ketones will not interfere.
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 1.0 ppm for 15 minutes
Storage Conditions: Maximum shelf life six months.
Recommended Holding Time: Two weeks prior to analysis.
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