Our 555 Ethylene Oxide Monitor is the most convenient way to measure personal exposure to ethylene oxide gas. Employees who work with EtO should be regularly monitored to maintain a safe working environment. This easy-to-use badge can collect 15-minute STEL samples as well as full-shift, 8-hour TWA/PEL samples. This badge is NON-RETURNABLE
Ethylene oxide is collected on a flexible, inert charcoal wafer treated with hydrogen bromide. The hydrogen bromide converts ethylene oxide to 2-bromoethanol. At the lab, the excess hydrogen bromide is neutralized with sodium carbonate. Then, the 2-bromoethanol is extracted with 90/10 toluene/acetonitrile and analyzed by GC/ECD. No further derivatization is required.
This badge collects the following:
- Ethylene oxide
Note: The sampling rate of the 555 changed with Lot 7F15, July 2015.
Before sampling, store and ship at room temperature. After sampling, store and ship at room temperature. Return to the lab within 14 days of sampling. The 555 ethylene oxide badge may be used for:
- 15-minute STEL sampling
- 8-hour TWA/PEL sampling
- 24-hour IAQ sampling