CAS RN:7803-52-3

Threshold Limit Values

8 hr Time Weighted Avg (TWA): 0.1 ppm.

Excursion Limit Recommendation: Excursions in worker exposure levels may exceed three times the TLV-TWA for no more than a total of 30 min during a work day, and under no circumstances should they exceed five times the TLV-TWA, provided that the TLV-TWA is not exceeded.

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