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Well, what I was thinking about is the scenario of 100% O2 at high 
pressure streaming out of a small hole- the kind of thing they keep 
warning about in mixing classes.
I work with O2 all the time, but its always at the 50 psi level, unless 
I'm mixing trimix or nitrox...
Wendell

ScottBonis@ao*.co* wrote:

>Hi Wendell,
>
>Could you please tell me a little more about the << spontaneous
combustion >> 
>of the contents of a nitrox tank.
>
>Take care and dive safe,       Scott
>
>Some weeks it's just not worth the effort to gnaw through the restraints and 
>scramble up out of the pit.
>
>
>
>
>In a message dated 5/31/02 6:35:31 PM, wgrogan@dc*.ne* writes:
><< >My local shop said that DOT regs. require the sticker because if I
were
>
>  
>
>>in a car accident with my tanks in the car that emerg. crews would know
>>    
>>
>
>  
>
>>what they were dealing with in my scuba tanks.
>>    
>>
>
>
>Since the risk to emergency workers is the high pressure in the cylinders and
>
>not a few extra percentage in O2, this is ridiculous.  The danger of a cracked
>
>tank exploding with 21% O2 vs. 30% is the shrapnel, not spontaneous 
>combustion!
>
> No fireman is going to take a dive tank and open it up near a fire- "Hey 
>Leroy,
>
>maybe this is a new type of fire extinguisher!  Nope, guess not 'cause it says
>
>Nitrox on the side- maybe we can sniff it and get high!":)
>
>
>  
>
>>I live in FL, and would rather not have any stickers (trapping salt water
>>    
>>
>
>  
>
>>etc.) and having Trimix in a Nitrox labeled tank etc.
>>    
>>
>
>
>That is one of my big gripes- if I switch from nitrox to trimix, do I have to
>
>put a "regulation" trimix sticker on it?
>
>
>Wendell >>
>
>
>
>
>
>  
>


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