DCHAS-L Discussion List Archive
Date: Tue, 19 Jun 2007 09:42:35 -0700
Reply-To: Gordon Miller <miller22**At_Symbol_Here**LLNL.GOV>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Gordon Miller <miller22**At_Symbol_Here**LLNL.GOV>
Subject: MeOH and Respirator Cartridges
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
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