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Sorry, but I wasn't joking. So at the risk of ridicule ... My understanding is that you would do your 10' stop on oxygen at 10'. Increasing the ppO2 is only of benefit in that it decreases the pp of inert gas in the breathing mix. In this case zero anyway. Going to 10' instead of pulling the stop to 20' increases the inert gas gradient which decreases time to off gas, but will grow any bubbles over what they would have done at 20'. In practice many people pull their 10' stop to 15-20' but for reasons of keeping away from the rough seas. I was not aware of pulling all 10' stops to 20' was common practice for reduction of bubbles. Is this common practice in USA ? I don't think it is in any of the agencies training. Guy > This is a joke, right? What are they teaching you guys down in Aus.? > > The 10 foot stop is done at 20 on o2. The inert bubbles stay smaller > and > the concentration of oxygen is higher. This is tech diving 101, > kiddies. > > trout > > ---------- > > From: Guy Wittig <Guy.Wittig@Au*.Su*.CO*> > > To: armantrout@wo*.at*.ne* > > Cc: techdiver@aquanaut.com > > Subject: Re: Lovely > > Date: Wednesday, April 08, 1998 1:46 AM > > > > Are you saying that True was correct ? > > > > " by permitting the diver to conduct the 10fsw stop at 20fsw " seems > like > > > crap to me. Do you know better or is this just a random act of TDI > > bashing ? > > > > > > Guy > > > > > > > > > From the 1996-1997 TDI Exams Book - Decompression Procedures Exam - > page > > > 1 - question 7: > > > > > > 7. Oxygen can be employed to increase safety regarding DCS or it > can > > > be used to shorten decompression time by permitting the diver to > conduct > > > the 10fsw stop at 20fsw. > > > True/False. > > > > > > TDI Answer: False > > > > > > > > > The track record speaks for itself. > > > Trout > > > -- > > > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com' > . > > > Send subscribe/unsubscribe requests to > `techdiver-request@aquanaut.com'. > > > > > > > ========================================================================== > == > > > == > > ,-_|\ Guy Wittig > > / \ > > \_,-\_+ <- last seen here > > v > > > ========================================================================== > == > > > -- > > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. ---------------------------------------------------------------------- Guy Wittig 33 Berry Street Phone: 02 9466 9486 Project Manager North Sydney Fax: 02 9466 9411 Sun Professional Services NSW Australia Mobile:0419 435 795 ---------------------------------------------------------------------- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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