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Previous by Date: Subject: Supplied-air respirator question Date: Wed, 21 Jun 2006 15:32:07 -0400 Author: jason.burrill**At_Symbol_Here**CRL.COM |
Next by Date: Subject: Re: Supplied-air respirator question Date: Wed, 21 Jun 2006 16:19:44 EDT Author: Doctormfox**At_Symbol_Here**AOL.COM |
The answer is yes. There is an ANSI standard about this, ANSI Z88.6, "Medical Clearance Requirements for Respirator Use." I doubt the evaluation will be extensive with a constant flow hood. I presume the hose is connected to some kind of air supply unit or source. The source needs to meet requirements of 29 CFR 1910.134 or state equivalent. These requirements need to be taken seriously because people are still dying because: * An oil-lubricated compressor that was used to supply breathing air overheated, cooked the lubricant, and fed lethal levels of carbon monoxide to the user, or * The hose coupling allowed the respirator to hook into a compressed gas supply other than air, such as a plant nitrogen system. In the USA, OSHA prescribes countermeasures for both - using breathing air compressors without oil lubrication or frequent/continuous CO monitoring and testing to ensure compliance with CGA standard G7.1-1989 and requiring unique couplings for respirator hoses to avoid connecting to a nitrogen or other gas line. The OSHA standard is available at: http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=12716 Please feel free to call if you have other questions. 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 >Hello all, >I was wondering if anyone knew whether or not a medical evaluation was >necessary for lab personnel wearing a Supplied-air respirator, from >reading 29 CFR 1910.134 it looks like they would but I just wanted to be >sure. This would pertain to someone working in a lab that put on a loose >fitting hood and have it hooked up to a hose that supplied ambient air to >the user. >Thanks, >Jason
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