Massimo: Further complicating the issue is that the Apollo 1 fire ocurred with a partial pressure O2 rich environment. My guess(!) is that a >1ATM O2 rich environment would be even more hazardous.
Maybe you can find some hints on this via NASA or a hyperbaric chamber manufacturer? Ed ------------------------ From: dave_osb...@hp-waltham-om3.om.hp.com Subject: RE: Medical Devices in Hyperbaric Chamber Date: Tue, 24 Nov 1998 11:13:10 -0500 To: regr...@esaote.com Cc: emc-p...@ieee.org > Hello Massimo, > > The use of devices in oxygen enriched environments is not a trivial question. > > Many materials that are fire retardant at 21% O2 are highly combustible in > enriched environments. If your product has not been specifically designed > and evaluated for use in such environments, one would be taking a great risk > in > using them there. Every year there are fires reported in hyperbaric > chambers. > Remember the Apollo One fire in 1967? > > IEC 60601-1 (second edition) does not have appropriate requirements for > oxygen > enriched environments. Work on the third edition is planned to address this > issue. > > There is an excellent article on oxygen environments in the current issue of > the ASTM Standardization News (November 1998) and the work of ASTM Committee > G-4, Compatibility and Sensitivity of Materials in Oxygen-Enriched > Atmospheres. > You can contact ASTM at http://www.astm.org > > > Best regards, > Dave Osborn > Hewlett-Packard Company > Medical Products Group > dosb...@hp.com -------------------------- Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 619-505-2780 List-Post: emc-pstc@listserv.ieee.org Date: 11/24/1998 Time: 12:16:35 -------------------------- --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
