o-Phthalaldehyde (OPA) Vapor Monitor
o-Phthalaldehyde 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.
Workplace Exposure Monitoring
Measurement of personal exposure is very easy. Clip the monitoring badge near the breathing zone of the worker. Record the start time and the stop time of the test on the pouch of the badge and return it to the laboratory for analysis in the mailer provided. The analysis report will show the average concentration of the worker’s personal exposure level.
According to OSHA regulations, each person who uses a toxic gas as a regular part of their job must have their exposure monitored periodically.
Indoor Air Monitoring
Place or hang the badge in your home for 24 hours. Record the start and stop times and send the badge back to the laboratory for analysis in the mailer provided. The analysis report explains if the concentration level of your home is exceeding the exposure limit.
o-Phthalaldehyde is a yellow in color and odorless chemical that is a solid in its purest form.
Observe strict precautions and have properly ventilated work-space.
- Flammable solid
- Aquatic toxicity
- Acute toxicity
Sold individually, as a pack of 5, or a pack of 10
All purchases include analysis and report from our accredited Industrial Hygiene laboratory
Principle of Operation
Air diffuses through a micro-porous membrane and collects vapor on special prepared adsorbents inside the monitoring badge.
|AKA||o-Phthaldialdehyde, OPA, o-Phthalic dicarboxaldehyde|
|ANALYTICAL METHOD||OSHA 64|
|ABSORBENT||Silica coated with DNPH|
|MINIMUM LEVEL OF QUANTITATION||
0.02 PPM for 8 Hours
0.03 PPM for 15 Minutes
0.007 PPM for 24 Hours
|RECOMMENDED SAMPLING TIME||
Workplace: 15 minutes to 8 hours
Indoor Air: 24 hours – 48 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.|
|ACCURACY||Meets or exceeds OSHA accuracy requirements of +/- 25%|
|STORAGE CONDITIONS||Store at room temperature.|
|RECOMMENDED HOLDING TIME||Monitors need to be returned to Lab within two weeks after sampling.|