Quote:
| Originally Posted by Lou So, you are only qualified to use one standard gas in the style in which you dive - but there are laxities in the wording that let you use a hypoxic mix mix on a normoxic card? |
As far as TDI are concerned, and I suspect GUE too, 18% O2 is not considered hypoxic.
My TDI Normoxic Trimix card states:
Qualified in trimix diving (helium based), with a 18% mixture or greater, use of nitrox/oxygen for deco/stage gases, to a max depth of 200fsw/60 msw.