Dimethylamine and Anhydrous Dimethlamine and the PSM standard.

This OSHA interpretation letter corrects a 1992 interpretation regarding dimethylamine under the PSM standard, 29 CFR 1910.119. It states that processes containing 10,000 pounds or more of flammable dimethylamine in aqueous solutions are covered by the PSM standard, and directs the recipient to discard the earlier correspondence.