Nitrox limits

[NYPI]

Question is this a reliable chart for MAX depth at mix % ?


http://www.gooddiving.com/doc/EquivalentNitrox.pdf


If it pushes the limits any suggestions?

Thanks,

Mike

 

[pants!]

Are you Nitrox certified?

 

[NYPI]

Are you Nitrox certified?

Not yet end of summer I hope...

 

[pants!]

In the class they will teach you how to calculate the MOD for a nitrox mix and you may get a nice hard copy chart

(I'm not able to view the pdf to comment on it)

 

[Lead_carrier]

When you get your EAN certification, you'll have plenty of tables and formulas to figure out what mixes, MOD (maximum operating depth), etc. that you need.

 

[CIBDiving]

If you don't KNOW, then there's a problem. Either you aren't nitrox certified or you need to retake the course!

but ***, Darwin can sort it out.

I didn't check but from memory the NDLs are pretty much the Navy tables - A good way to get bent if you don't follow the surface times too. We used them for years but they have been supersided by more conservative modern tables that don't make the assumption that you're a physicly fit 20 year old male and will accept a 1% chance of being bent.

PPO2 is @ 1.6, that's on the high edge but not completely outside the limit.

All in all, you could use that table for a single dive and have a very good chance of no problems, then again.....

 

[Charlie99]

It's TIME AND ppO2.

The tables you linked to are for 1.6 ata ppO2. Most recreational oriented agencies teach 1.4 ata ppO2 max, and in reality, running a whole dive at 1.4ppO2 is pushing it more than I like (Even though I'm willing to spike to 1.6ppO2 for short excursions).

The tables you linked are a bit different than the tables you will see in your course, and IMO a better format. Most agencies give you a table that takes even 10' increments of dive depth and convert that to equivalent air depths. To use an air table, you then have to round up to the next 10' increment on the air table.

The Gooddiving.com tables start with the 10' increments of the air table, and give you the oddball numbers that are the equivalent ppN2 with different nitrox mixes. I find that table is better for planning, although I've added PADI NDLs and added a little table of 1.4 ata (normal MOD) and 2.0 ata (emergency MOD) ppO2 for my reference.

 

[StSomewhere]

Its not a substitute for a good Nitrox class, but until then get Rob Rossier's Recreational Nitrox Diving. All the tables and formulas and example problems you'd need to get up to speed, plus the algebra won't get in your way when you do take the class.

 

[BIGSAGE136]

I would strongly encourage you to take the class. Some shops even offer it online. I know that I discovered some surprises that made me go whoa! Didnt know that!

 

[MXGratefulDiver]

Question is this a reliable chart for MAX depth at mix % ?


http://www.gooddiving.com/doc/EquivalentNitrox.pdf


If it pushes the limits any suggestions?

Thanks,

Mike

Looks like the TDI chart.

My suggestion would be to take the Nitrox class before attempting to use it. This is one area where a little knowledge can definitely hurt you.

... Bob (Grateful Diver)