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In a message dated 12/12/99 9:36:18 PM, you wrote:

<<With the variety of
nitrox mixes popular nowadays, there should not be any problem filling it
with pure oxygen or a high-oxygen mix.>>

DANGER WILL ROBINSON!!!

Be very careful about dumping pure oxygen into a pressure bottle.  Metals that behave nicely with compressed air can be deadly with compressed oxygen.  I've spoken to the NASA experts in this field and they've told me some scary stories and shown me some frightening videos...

Whatever bottle, regulator, and other hardware you find -- get the manufacturers assurance that it is rated for high pressure oxygen service.  Then make sure it is adequately clean for oxygen use.  (We used to use tricholoethylene in an ultrasonic cleaner but other things work well)

If you don't do the above, you run a high risk of serious injury or worse.  Please be careful...

- Rob Wolf

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