NIOSH REL
NIOSH REL :
NIOSH's Recommended Exposure Limits. "For NIOSH RELs, 'TWA' indicates a time-weighted average concentration for up to a 10-hour workday during a 40-hour workweek. A short-term exposure limit (STEL) is, unless noted otherwise, a 15-minute TWA exposure that should not be exceeded at any time during a workday"
No records Found