Threshold Limit Value - Short-Term Exposure Limit (TLV-STEL)
Threshold Limit Value - Short-Term Exposure Limit (TLV-STEL) :
Is the maximum concentration for a continuous 15-minute exposure period (maximum of four such periods per day, which at least 60 minutes between exposure periods, and provided that the daily TLV-TWA is not exceeded). References: The Center for Chemical Process Safety of th American Institute of Chemical Engineers. Safety Health, and Loss Prevention in Chemical Processes. 345 East 47th Street, New York, NY 10017, 1990
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