On Wed, 09 Apr 2014 22:17:46 -0500, "Pete C."
wrote:


Stormin Mormon wrote:

On 4/9/2014 4:44 PM, wrote:
On Friday, June 18, 2010 9:58:42 PM UTC-4, Some Guy wrote:
Is there any difference between a tank of welding oxygen vs medical
oxygen as far as purity, concentration, hazardous impurities, etc, that
would render welding oxygen insufficient (or even dangerous) for helping
to supplement breathing / respiration ?

If there is a difference between welding oxygen and medical Oxygen, can anyone prove to me the difference, if it's just a tag, that is not proof, Talk is not proof, Just answer the question if you know for sure....

You think someone got answer, since the question was four years ago?

Perhaps, but probably not the accurate one. The reality is that the
purity standard for welding O2 is tighter than that for medical O2.
Ultimately, except for the "analytical grade" all of them come from the
exact same cryo tank of O2 at the filling station.
A friend uses "welding oxygen" to fill his breathing tanks for high
altitude flying in his Harmon Rocket.