Methanol

CAS RN: 67-56-1

Threshold Limit Values

8 hr Time Weighted Avg (TWA): 200 ppm, skin; 15 min Short Term Exposure Limit (STEL): 250 ppm, skin.
Biological Exposure Index (BEI): Determinant: methanol in urine; Sampling Time: end of shift; BEI: 15 mg/L; Notation: The determinant may be present in biological specimens collected from subjects who have not been occupationally exposed, at a concentration which could affect interpretation of the result. Such background concentrations are incorporated in the BEI value.; The determinant is nonspecific, since it is also observed after exposure to other chemicals.
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