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Simple, you don't need any N2. Are you sure your name isn't "Booneski"? Jim On 3/12/98 9:44 AM CHK BOONE wrote: > >All, > >I've always wondered why everyone teaches nitrox mixing by calculating how >much O2 you need to add to the tank. Why not simply calculate it on the >basis of how much N2 you need ? For example : > >For a 36% mix --> > >You need 64% N2 >64% of 3000 is 1920 psi of N2 >1920 = 79% of X >X = 2430 psi of air to add on top of . . . . >3000 - 2430 = 570 psi of O2 > >Much easier than trying to deal with two different percentages and much less >chance of an error. > >This example is, of course, ideal and you might want to throw in a tiny fudge >factor where compressibility differences enter the picture with some mixes >and, of course, you may need to consider the residual gas components as well >if you don't flush the tank at the start. > >Chuck Boone >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > ------------------------------------------------------------------- Learn About Trimix At http://www.cisatlantic.com/trimix/trimix.html -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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