Don Foreman wrote:

On Wed, 12 Jan 2011 15:34:26 -0800, Rich Grise
wrote:

David Lesher wrote:
"Pete C." writes:

And if the fill plant doesn't vacuum out that potential contamination,
particularly the most probably acetylene, before putting high pressure
pure O2 on top of it, their fill plant will go BOOM! Any traces small
enough to not be a safety problem at the fill plant are also too small
to be a safety problem breathing the O2.

That's not the only fun you can have with compressed gas. I
recall that not once but twice, Koch Refining burned down the
CO2 plant attached to their refinery. We never figured out
how...

Anyone heard the UL about the guy with the full scuba tank held
valve down in some kind of chain vise, and he somehow took the valve
out, and the tank turned into a rocket, went through the basement
ceiling, the upstairs ceiling, the roof, jetted around in an arc, and
embedded itself in the roof of some car?

I _do_ know that 2250 PSI (150 atmospheres) is a very formidable force.

Thanks,
Rich

My dad saw a bottle of compressed gas fall off a truck and snap off
the valve. It went about a block and then clear thru a brick wall. He
didn't know what happened beyond the brick wall.

In the Mythbusters test their cylinder went cleanly through their test
cinderblock wall, and would have gone through the next one if there was
a little more distance for it to accelerate again after going through
the first wall.