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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.


You can search by CAS number or material name by selecting your search method from the list of options below. After selecting your method, enter your search term and click the Search button to view your results.



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