2,4-D

CAS RN: 94-75-7

Threshold Limit Values

8 Hr Time-Weighted Avg (TWA): 10 mg/cu m (inhalable fraction), skin.
Excursion Limit Recommendation: Excursions in worker exposure levels may exceed 3 times the TLV-TWA for no more than a total of 30 minutes during a work day, and under no circumstances should they exceed 5 times the TLV-TWA, provided that the TLV-TWA is not exceeded.
A4; Not classifiable as a human carcinogen.
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