Various agencies issue exposure limit values. Limits presented in
this lookup are:
OSHA PELs (Permissible Exposure Limits)
ACGIH TLVs (Threshold Limit Values)
NIOSH RELs (Recommended Exposure Limits)
NIOSH IDLH (Immediately Dangerous to Life and Health)
DFG MAKs (Maximum Concentration Values)
AIHA WEELs (Workplace Environmental Exposure Values)
If you do not see any data for a specific agency exposure limit, then
no value was found for the material of interest.
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