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From: Gordon Miller <miller22**At_Symbol_Here**LLNL.GOV>
Subject: MeOH and Respirator Cartridges
Date: Jun 19, 2007 16:42 UTC
Reply-To:
Gordon Miller
In-Reply-To:
Chemicals with high vapor pressures (e.g., methylene chloride, fluorocarbons) don't adhere to activated charcoal very well so air-purifying respirators are not advisable for them. NIOSH generally kicks you up to air-supplying respirators for them. Peter Zavon is right, according to 29 CFR 1910.134, cartridge replacement must be guided by a changeout schedule. Most respirator manufacturers can provide them on discs or at their Web sites. If that doesn't work, try OSHA at: http://osha.gov/SLTC/etools/respiratory/index.html . Gordon Miller Respirator Program Administrator Lawrence Livermore National Laboratory P.O. Box 808 (L-379) Livermore, California 94550 (925) 423-8036 Fax (925) 422-5176 miller22**At_Symbol_Here**llnl.gov