NMAM is a compilation of methods for sampling and analysis of contaminants in workplace air, and in the bodily fluids of workers who are occupationally exposed to that air. These methods have been developed specifically to have adequate sensitivity to detect the lowest concentrations and sufficient flexibility of range to detect concentrations exceeding safe levels of exposure, as regulated by OSHA and recommended by NIOSH. The Threshold Values (TLVs) and Biological Exposure Indices (BEIs) of the American Conference of Governmental Industrial Hygienists (ACGIH) are also cited.
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