While it is true that the odor threshold for MeOH makes for poor warning properties, the warning properties trigger was removed a couple of years ago. OSHA now requires a change-out protocol based on airborne concentration, effectiveness of adsorbsion, length of use, etc., or an end-of-life indicator. Replying on warning properties for cartridge respirators is no longer acceptable under the regulations. Peter Zavon, CIH Penfield, NY PZAVON**At_Symbol_Here**Rochester.rr.com > -----Original Message----- > From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**LIST.UVM.EDU] > On Behalf Of Hofbauer, Ken **At_Symbol_Here** CSE > Sent: Monday, June 18, 2007 4:33 PM > To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU > Subject: Re: [DCHAS-L] MeOH and organic vapor cartridges > > This is an odor threshold issue. MeOH has very poor odor > detection hence you can't detect cartridge breakthrough. > > Kenneth Hofbauer, Ph.D. > Director, ES&H > > L-3 Communications Corp. > 1 Federal Street > Camden, NJ 08103 > > (856) 338-4745 > (856) 338-2990 [fax] > > > "In preparing for battle I have always found that plans are > useless, but planning is indispensable." > > Dwight D. Eisenhower > > > > -----Original Message----- > From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**LIST.UVM.EDU] > On Behalf Of Hadden, Susan [PRDUS] > Sent: Monday, June 18, 2007 8:04 AM > To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU > Subject: [DCHAS-L] MeOH and organic vapor cartridges > > I recently learned that organic vapor respirator cartridges > do not adequately filter out methanol. Can someone explain > why? Are there other common solvents that these cartridges > are inadequate for? > > Thanks, > > Susan Hadden > Senior Occupational Safety Specialist > J&J PRD Environmental, Health & Safety > 1000 Rt 202, PO Box 300 > Raritan, NJ 08869 > 908-704-4295 (ph), 908-707-9211 (fax) >
Previous post | Top of Page | Next post