Nitrox Question??

[The Great Orca]

I keep reading about Nitrox, what is the difference between oxygen and Nitrox. I'm sooooo lost. Please help.
Thanks

 

[wedivebc]

I keep reading about Nitrox, what is the difference between oxygen and Nitrox. I'm sooooo lost. Please help.
Thanks

In a nutshell air contains 21% oxygen and 79% nitrogen. Nitrox is air with extra oxygen added that may contain anywhere from 22% - 99% oxygen. It is also called enriched air, NTX, EANX, safeair and a host of other names.

 

[Wendy]

In a nutshell air contains 21% oxygen and 79% nitrogen. Nitrox is air with extra oxygen added that may contain anywhere from 22% - 99% oxygen. It is also called enriched air, NTX, EANX, safeair and a host of other names.

i thought it was 22% to 40% oxygen?

 

[Nomaster]

i thought it was 22% to 40% oxygen?

From my PADI text, Nitrox is any formulation of Nitrogen and Oxygen, Enriched air (EANx) is when the mix has greater ratio of Oxygen than 21:79.

Tom

 

[wedivebc]

i thought it was 22% to 40% oxygen?

OK so what do you call 50%?
I am not being obtuse, I am ANDI trained and we have slightly different naming standards than other agencies.

 

[teknitroxdiver]

Nitrox is anything from 21% to 99% oxygen. And, possibly you could define air-oxygen mixes below 21% as nitrox too. EAN (greater than 21%) requires special training, and above 40% ("hot mixes") requires special cleaning of dedicated regs and tanks.

 

[DPJ]

i thought it was 22% to 40% oxygen?

These are gases that are taught and used once completing basic Nitrox course. Due to the partial pressure of Nitrogen, the higher gases are really only usefull for decompression diving.

For further information check out IANTD at
http://www.iantd.com/standards/IANTD_Standards_2003.pdf

 

[RichLockyer]

OK so what do you call 50%?

Deco gas.

It's still nitrox, but not a recreational mix, and even by tech divers, most likely not used as a bottom mix or travel mix.

 

[gjmmotors]

Nitrox is a breathing mixture that conatins more oxygen then found in the air you breathe.
example:
Air is commonly 21% oxygen and 79 % nitrogen the remaining 1 % are trace gases.
(This varies )

Nitrox may be in any concentration above 21% oxygen.
Some shops have begun calling air, normoxic nitrox. due to the "normal" % of oxygen.
Oxygen is oxygen, its a "pure" gas.
Nitrox is a mixture.

Buy a book or take a class.
-g mount

 

[wedivebc]

Deco gas.

It's still nitrox, but not a recreational mix, and even by tech divers, most likely not used as a bottom mix or travel mix.

I thought the current correct name for anything other than 50/50 and O2 was 'stroke mix'