walkonmars
Contributor
I guess hard heads are difficult to counter. Lampton Welding is the largest supplier of welding supplies in this area. Sells to hospitals, fills medical oxygen cylinders for many suppliers, supplies aircraft plants, etc. They only purchase medical grade Oxygen and purchase from one of a very few extractors in the US which supplies LOX to most all large pumping stations. The Primary difference is for medical Oxygen they evacuate system/cylinders and certify the contents. Medical and welding grade tanks are never filled on the same trunk system -- but the oxygen supply (LOX) is medical grade. Airgas process is just the same.
Jim Shelden
Thanks for the reply,
It does make sense. If you are a NADCAP, ISO or some other Quality control org certified supplier, you may be either required to segregate material supply or test everything that goes out. I don't know the exact requirements but only guessing. Segregating as you describe may be the cheaper solution. I'm thinking that many more cylinders of "industrial" go out the door than "medical". Then just test the batches you need ("medical" only) and don't leave into question if non-tested batches have somehow contaminated the rest of your supply or any of your delivery lines.
I suppose some other people's options will vary.