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Date: Wed, 26 Jul 1995 23:36:11 -0400 (EDT)
From: Ronnie Bell <rbell@cp*.or*>
To: "joe (j.j.) mierwa" <joemama@bn*.ca*>
cc: techdiver@terra.net
Subject: Re: Looking For O2 Exposure Limit @ 1.7ATA

Get a copy of the NOAA dive manual or the Deep Diving book from 
watersports publishing. Bioth have it. The only problem is that as far as 
I can tell there isn't a very good fit to any physiological change and 
the numbers. The USN used to use an O2 toxicity test. They learned that 
individual tolerance to O2 seemed to be relatively unpredictable. One day 
you'd bonk at 1/4 the exposure you had worked right through the previous day.
It seems like a good rule of thumb though. Reduced respiratory efficiancy 
due to elevated oxygen exposure is a totally different story. It happens, to 
everybody and as far as I understand it's pretty similar across the board 
in most people.
Maybe an expert will garce us with more information.
r.b.

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