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Federal
Total Inward Leakage (TIL) for Respiratory Protective Devices
U.S. Department of Health & Human Services —
Total inward leakage (TIL) is an estimate of the performance of a respirator, which is measured as the leakage of contaminants through the filter media and through... -
Federal
NIOSH Certified Equipment List (CEL)
U.S. Department of Health & Human Services —
The National Institute for Occupational Safety and Health (NIOSH), under the authorization of the Federal Mine Safety and Health Act of 1977 and the Occupational...