OSHA 8-Hour TWA Calculator
Calculate 8-hour time-weighted average exposure.
8-Hour TWA
42.50 ppm
Weighted Exposure
340.00 ppm*hr
Total Time
8.00 hr
Calculate 8-hour time-weighted average exposure.
8-Hour TWA
42.50 ppm
Weighted Exposure
340.00 ppm*hr
Total Time
8.00 hr