L13
Contributor
With Nitrox, everything is a compromise, one factor can be made more conservative at the expense of the other:
NDL/DCS risk <---> MOD/Oxygen toxicity risk
risk of mistakes due to non-standard <---> reduced risk due to optimization
etc.
One risk I like to mitigate is to use a Nitrox with a MOD >= the max depth at my dive site and/or only dive where the hard bottom is <= MOD. I often don't follow this rule especially when doing wall dives in the ocean because other risk/NDL decisions over-ride. When using this rule, I will accept a ppO2 of 1.6 at the hard bottom as long as the planed dive has a ppO2 <= 1.4. But, if a range of Nitrox mixes seem safe, I will often bias to this rule or the dive shop standard mix which often fits this rule.
Don't get over focused on one factor, consider all of them. Pick a good compromise, plan the dive based on that, and then dive the plan.
NDL/DCS risk <---> MOD/Oxygen toxicity risk
risk of mistakes due to non-standard <---> reduced risk due to optimization
etc.
One risk I like to mitigate is to use a Nitrox with a MOD >= the max depth at my dive site and/or only dive where the hard bottom is <= MOD. I often don't follow this rule especially when doing wall dives in the ocean because other risk/NDL decisions over-ride. When using this rule, I will accept a ppO2 of 1.6 at the hard bottom as long as the planed dive has a ppO2 <= 1.4. But, if a range of Nitrox mixes seem safe, I will often bias to this rule or the dive shop standard mix which often fits this rule.
Don't get over focused on one factor, consider all of them. Pick a good compromise, plan the dive based on that, and then dive the plan.