Ethylene Oxide

Permissible exposure limits -(1) 8-hour time weighted average (TWA). The employer shall ensure that no employee is exposed to an airborne concentration of ethylene oxide in excess of one (1) part ethylene oxide per million parts of air (1 ppm) as an 8-hour time-weighted average (8-hour TWA). (2) Excursion limit. The employer shall ensure that no employee is exposed to an airborne concentration of ethylene oxide in excess of 5 parts of ethylene oxide per million parts of air (5 ppm) as averaged over a sampling period of fifteen (15) minutes.