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- Newsgroups: sci.space
- Path: sparky!uunet!utcsri!utzoo!henry
- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: Low-Pressure O2 Atmosphere
- Message-ID: <BxIqKM.I8A@zoo.toronto.edu>
- Date: Tue, 10 Nov 1992 21:05:09 GMT
- References: <BxI4o7.2Mq.1@cs.cmu.edu>
- Organization: U of Toronto Zoology
- Lines: 18
-
- In article <BxI4o7.2Mq.1@cs.cmu.edu> flb@flb.optiplan.fi ("F.Baube x554") writes:
- >But in pure O2 lots of things burn that "shouldn't", like
- >asbestos fibers. This actually happened long before that
- >Apollo capsule burned up, and should have alerted NASA.
-
- Low-pressure pure O2 is not much worse for flammability than ordinary air.
- NASA did extensive flammability tests under those conditions, and concluded,
- more or less correctly, that there was no serious problem.
-
- What they missed -- despite some hints of trouble -- was that the capsules
- were operated at circa 1atm of pure O2 before launch, and under *those*
- conditions the situation is indeed much worse.
-
- It *is* thought that an inert diluent gas helps reduce fire hazards, but
- the effect isn't huge.
- --
- MS-DOS is the OS/360 of the 1980s. | Henry Spencer @ U of Toronto Zoology
- -Hal W. Hardenbergh (1985)| henry@zoo.toronto.edu utzoo!henry
-