DETERMINING MINERS’ EXPOSURES TO DPM To validate a determination of a miner’s exposure to the 160 TC PEL based on a personal TC sample, MSHA will analyze a non-citable area sample taken from an area of the mine witho
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DETERMINING MINERS’ EXPOSURES TO DPM To validate a determination of a miner’s exposure to the 160 TC PEL based on a personal TC sample, MSHA will analyze a non-citable area sample taken from an area of the mine witho