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Date: Mon, 14 Jul 2003 23:00:08 +0900
To: techdiver@aquanaut.com
From: Gary Hagland <haglandg@to*.co*>
Subject: Re: What ppO2 for bottom mix?
Jan,
Oxtox is a crap shoot.  With the studies that have been done, the only 
constant seems to be its unpredictability.  However, last year in Florida, 
divers convulsed and died at PO2 1.48 and 1.28.  To be honest, don't know 
if there were extenuating circumstances, but it should give us reason to 
question our assumptions that 1.4 is absolutely safe.  Also, I think we 
should acknowledge that the deeper you go, the less chance of a successful 
recovery from one of these incidents.
Gary

At 11:18 AM 7/14/03 +0200, you wrote:
>What ppO2 should I use for typical series nitrox or normoxic trimix OC
>diving?
>
>I learnt 1,4 is safe limit for a bottom mix and 1,6 for deco. Of course if
>there are following dives then all limits on deco should be watched
>carefully. Why some people advice me it's better to use 1,1- or 1,2? I don't
>know any reason for this. Maybe for CCR divers there are reasons but for OC?
>
>What is the reason some folks recommend Tx 21/35 for a 45 meters wreck with
>up to 30 minutes BT? I personaly prefer to use 26/25. All other divers have
>different mixes so there is no need or possibility to be dependant on buddy.
>
>What advantage have GUE standard mix for above dive  for solo diver making
>custom blends and profiles?
>
>Jan WerbiƱski       O0oo....._[:]) bul, bul, bul
>Strona domowa http://www.janwer.com/ [ http://pa54.zgora.sdi.tpnet.pl/jw/ ]
>Nasza sieƦ http://www.fredry.net/ [ http://pa54.zgora.sdi.tpnet.pl/ ]
>
>
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