An in-depth book on trimix diving?

[Subcooled]

Can you recommend me a book or articles related to trimix diving that contain an in-depth, quantitative, properly referenced discussion of breathing, gas switches, hypoxia, carbon monoxide, carbon dioxide, helium, gas density and pressure?

 

[TSandM]

A lot of what you want is here: Getting Clear on the Basics: The Fundamentals of Technical Diving - PDF | Global Underwater Explorers

I have not seen the current version, and mine is 8 years old. There is, as I recall, no real discussion of the mechanics of tech diving (eg. Gas switch procedures) but there is extensive discussion of what's known about breathing gases and decompression theory.

 

[steady1570]

Deco for Divers by Mark Powell covers most things. Technical Diving from the Bottom Up by Kevin Gurr is also a good read.

-Mark

 

[Subcooled]

A lot of what you want is here: Getting Clear on the Basics: The Fundamentals of Technical Diving - PDF | Global Underwater Explorers

That book is much better than the TDI/IANTD books I have seen in that it actually provides at least some references (in parentheses).

A quick browse shows that it still does not answer some questions - such as "how does 5ppm (or 10ppm) CO affect a diver at 50m" or "how does CO2 narcosis differ from nitrogen narcosis" or "at what pN2 does nitrogen narcosis become more debilitating than drygloves" or "what is the EAD if oxygen is assumed to be narcotic", "how much does pressure affect the vital capacity and why"... Questions such as these are interesting. Are there any books that would bridge the gap between this GUE manual and scientific articles?

Deco for divers is very good (I have read it). I wish there was a "Compression for divers", too.

Gurrs book wasn't familiar to me. I'll have a look at it. Somewhere... If I can find it's table of contents or something...

 

[TSandM]

I'm not sure the answer to some of those questions is known. For example, the difference between CO2 narcosis and N2 narcosis -- except for the fact that sufficient CO2 retention alters the acid-base status of the body, which is not well tolerated. But is the cognitive impairment different in quality or amount? I don't think anybody knows.

EAD is independent of narcosis -- EAD is the depth where you are absorbing equivalent nitrogen to air. END is either calculated using 1 - helium, or 1 - (helium + oxygen), depending on agency, so that's pretty clear. GUE doesn't discuss it much because oxygen is assumed to be narcotic. I have not read any published resource (other than research papers I find on Rubicon) that addresses things like changes in VC with depth.

 

[waterpirate]

I tried to take the aproach the OP is seeking. It did not work. Beyond the books allready mentioned, mixed gas non commercial/military diving is still experimental. Experimental being defined as: We will tell you what to watch for, and stress good skills and known best practices. Beyond that, everyones body is a little diffferent and you should go accordingly based on your own body's reaction.
YMMV
Eric

 

[steady1570]

You might try Bennet and Elliott for a more physiological approach - might answer some of your points?

https://www.elsevier.com/books/benn...-medicine-of-diving/brubakk/978-0-7020-2571-6

Or if you can get it, Deeper into Diving (2nd edition) by Lippmann & Mitchell

http://www.aquaquest.com/books/deeper_aqp.htm

-Mark

 

[Rich Keller]

The US Navy Diving Manual should have everything you need. If you believe what the Navy Dive Masters say, God did not rest on the seventh day, he wrote this manual.

US Navy Diving Manual Revision 6 PDF

 

[mmadiver]

The US Navy Diving Manual should have everything you need. If you believe what the Navy Dive Masters say, God did not rest on the seventh day, he wrote this manual.

US Navy Diving Manual Revision 6 PDF

Have to disagree with you there. The OP will be better served with some the civilian publications already listed. "Deco for divers" is a good start.

 

[100days-a-year]

Better served by developing a relationship with some divers who do what you want to do as much of the information is subject to revision regularly.What I read 25 years ago has been supplanted with different but not always better information.Technique,gear and training change as well.Having mentors(no matter what you read,someone will always know more and have the experience to validate their knowledge) helps to develop good habits as well as giving one buddies who are like minded

I have read most of the above and more,did not change 1 single aspect of my actual diving.