Quantitative fit testing is the preferred testing method. The ambient aerosol condensation nuclei counting (CNC) method, using a Portacount® Plus instrument, has been selected as the quantitative fit ...
WHEN OSHA's revised Respiratory Protection Standard for General Industry, 29 CFR 1910.134, became effective on April 8, 1998, it provided employers with an all-inclusive reference source for fit ...
"Selecting the proper respirator is a vital step in protecting a user against potential over-exposures and adverse health effects," said OSHA Administrator John Henshaw. "The additional fit-testing ...
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