AZ Nomad wrote:

On Sun, 20 Jun 2010 10:45:20 -0500, Pete C. wrote:

AZ Nomad wrote:

On Sat, 19 Jun 2010 22:27:17 -0500, Pete C. wrote:

The purity standard for welding O2 is higher than the purity standard
for medical O2. In reality all three normal grades you can get, welding,
medical and aviator exceed all of the standards. Only the analytical
grade is higher purity.

Nope. Why don't you look it up, starting with 1) the percentage of oxygen
and ending with 2) the levels of impurities.

You can't use welding O2 for medical purposes but you can use medical O2
for welding.

Nope, exactly the opposite.

Your assertion is in direct opposition to purity standards especially
those regarding impurities.

Why don't you make a slight attempt to educate yourself?

Why don't you do some research? I actually use O2 regularly, both for
welding / cutting as well as for breathing and nitrox blending. I'm well
aware of the fact that the welding O2 purity standard is tighter than
the standard for medical O2, as well as the fact that all grades of O2
from any of the large gas suppliers exceeds both the welding and medical
purity standards by a significant margin.