Quote:
Originally Posted by woods
O2 isn't combustible. Regular air is 78% nitrogen. 21% Oxygen and trace gases.
Take a look at someone who has popped out pipes. 30 psi isn't much, only 3 atm.
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Technically its the oxidant. The steel pipe is the fuel.
Still incredibly dangerous stuff. You would probably get away with air, as the nitrogen would act as a suppressant, but using nitrogen instead of air is certainly safer.
30psi gauge is 2 atmospheres. There was mention of 80-100psi earlier in the thread.