I believe that all DMSO is sold as a solvent in order to get around FDA
restrictions.
I wouldn't hesitate..don't hesitate..to suck up oxygen from my welding
tanks. It's gotta be purer than city air.
I do try to remember to turn the acetylene off though.
Ken
At 12:30 AM 4/13/2003 -0400, you wrote:
all that is sold is solvent grade on net. one place claimed 99.9% pure but had
no info to back it up. so you guys are using solvent grade?
as far as oxygen. i was informed that welding grade oxygen comes from the same
source as med oxygen. the only possible contamination would be a new tank
that was filled with oxygen and not purged properly. so, if you use a used
tank
you should be a ok.
med tanks DO have extra protection in that a history is kept of the tank,
where it was
filled and by whom etc..
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