Talk:Enriched Air Nitrox
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[edit] Corrosion dangers of nitrox
The article mentions the dangers of being O2 clean and flamability. May I suggest some information about the corrosive nature of 02 and that o2 compatible materials be used such as 0-rings, seals, and such that could fail with repeated exposure to Nitrox, in addition to just being O2 clean, equipment should be o2 compatible. Also related would be the accelerated rate of pitting and oxydation of metals and greater likelihood of internal tank corrosion. Probably under the Dangers or precautionary headings. Mbeatty 22:39, 4 October 2006 (UTC)
[edit] PADI bashing? Not moi
I know we can't bash PADI on the article page. If they want to ignore the Compressed Gas Association and pump anybody's cylinders, clean or not, full of 40% nitrox, fine with me. I didn't say it was a bad idea in the article, did I? I just put in a reference which all can read.
I love PADI. It really stands for Pals, And Daily Inspiration. The stuff about Pay And Dive Immediately is just jealousy from people who don't make as much money, and have to come up with ideas sooner, before they're, er, mainlined by PADI. But they're a great bunch of guys at PADI. Really they are. XXXX from me. 01:39, 18 June 2006 (UTC) —Preceding unsigned comment added by Sbharris (talk • contribs)
[edit] M26
Do we need to include the new (EU only) BS EN 144-3:2003 standard in this article?? In normal speak, the M26 valve for tanks with an oxygen content greater than 22% which becomes compulsory standard in the EU in august 2008. Scubafish 15:20, 29 May 2007 (UTC)
- We've avoided this, because the nearly universal opinion is that the standard sucks. Nothing prevents you from dirtying up your fancy nitrox tank and its fancy M26 valve by putting air or junk in it, except human attentiveness. Which you should be using anyway when you see the sticker. There is no making systems foolproof because fools are so ingenius. To make this standard work to prevent fools from fouling it, all systems which deliver anything but air would have to be fitted with M26 fittings so they couldn't be used with air and wouldn't accept air at any point-- sort of the way nitrous oxide fittings are different in anesthesia machines. But since air is almost universally used in blending high O2 mixes, especially on live aboard boats, this isn't going to happen, so the whole system is not going to work, except perhaps to connect big and little tanks that never contain anything but pure 100% O2. Which is a very tiny percentage of the total tank number out there. For everything else, if your system accepts air for blending NITROX it can be used to put air into a NITROX tank, no matter what fittings it all has. This is POV. Perhaps if we can find somebody to defend this stupid idea, we could present them both side by side, in neutral language. But good luck on that. Ah, Europeans and their nanny regulations. They love medical and tech regulation as much as Americans love drug laws. I'm surprised it wasn't Canadians who came up with the BS EN 144-3:2003 idea. But no doubt Canadians will love it. (Of course, it's not all one-way--- if we could only get America to accept the 300 bar scuba tank transport standard for steels...). SBHarris 18:02, 29 May 2007 (UTC)
I have a share in a dive centre and I know it sucks and I will ignore the issue when it comes to my own tanks. I just thought it would be nice to include it just as the different types of valves are still being revered to in some dive organisations and even on Wikipedia (see J-valve). Scubafish 18:15, 29 May 2007 (UTC)
[edit] Cylinder markings
The article states that cylinders containing anything other than air need to be marked. I'd like to point out that this sillyness is advocated by only part of the diving community. Forcing divers to use a certain color for their cylinder depending on contents or forcing people to decorate their cylinders with these silly Nitrox stickers, does of course do nothing to help in determining the contents of a tank. The only thing on backgas cylinders should be a piece of tape with the analysis, date and an MOD for the gas. The only thing on a deco cylinder should be an MOD (and maybe a name). Nitrox stickers and other assorted nonsense only confuse matters and are no help at all.Abiermans (talk) 23:14, 8 May 2008 (UTC)
- I wouldn't say that. Most NITROX isn't even used for deco-- it's used as a primary in sport diving. A big green/yellow NITROX sticker is a sign that the tank has been used mostly for Nitrox by the resort (hopefully ONLY for Nitrox). It guarantees nothing, but it's likely to be cleaner than the average tank which has been used for air. Also, the big green stickers make the NITROX cylinders a little easier to find on the rental dive boat. If you're at a nice resort, you certainly analyzed your own gas, but you didn't necessarily haul it all down to the dock and put it onboard. If you're diving NITROX that marker is helpful, as you only have to look at a few cylinders for nametags. A big green sticker is larger than a small tag. (Of course it must have the small personal tag ALSO) SBHarris 00:15, 9 May 2008 (UTC)
Thanks for the edit. I corrected a minor spelling error as well. Whether Nitrox is used as a backgas or decogas depends mostly on what type of dive is being done. For most recreational divers it is indeed the backgas. I'd like to also add that cylinder cleaning is far more important for decocylinders since it is those cylinders that are seeing O2 contents higher than 36%, but this also depends on how cylinders are filled. Filling with pre mixed gas versus mixing pure components. Abiermans (talk) 18:26, 9 May 2008 (UTC)
