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Hello! Officialy ANDI advocates O2 clean regs, but unofficially any competent instructor should tell you, you can use normal reg up to 50% O2 (that's what mine said). About valves it takes about 4 seconds to convert a 200 bar DIN valve to yoke. You just insert a part thet comes with any 200 Bar DIN valve (at least in Europe). So that argument is crap. You can use any valve you want, we use yoke, 200Bar DIN and 300 Bar DIN, depending on the regulator you happen to have at home. Lp Borut Korosin borut@le*.si* Hidetaka Mizohata wrote: > Dear All: > > I recently heard that ANDI advocates the mandatory use of an O2 clean reg if > the tank contains 23.5% of O2 or more. I also heard that they go so far as > to install only the DIN valves on O2 clean tanks; this way a diver wouldn't > be able to use a non-O2-clean reg (yoke in this case) even when the gas > contains less than 40% O2. Does anybody know if and why ANDI advocates these > "rules" even if NOAA, NASA, OSHA, etc. say it is not necessary to use clean > regs as long as there's 40% or less of O2 in the mix? Is this "DIN-only for > nitrox tanks" rule enforced by all ANDI branches, or is it limited to some > parts of the world (i.e., Australia and Japan)? Are there other agencies > besides ANDI that do the same? Has there been any incident of cylinder > explosion because a non-O2 clean reg was used on EAN40 or less? Exactly how > did they (NOAA, OSHA, etc.) come up with this 40% rule? I know all of this > sound absurd at best, but one guy in Australia insists it is a legitimate > way to do nitrox and told me that I didn't know what I was talking about > when I said it's unnecessary to limit nitrox to a particular type of valve. > Thanks in advance for any relevant information, opinions, etc. > > Sincerely, > > Hidetaka Mizohata <mailto:hmizoha@hi*.co*> > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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