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-----BEGIN PGP SIGNED MESSAGE----- On Wed, 17 Apr 1996, Jess Armantrout wrote: > I think it is well known among people who have a clue that the filling is > always done the same. But for some funny reason, I personnally get a warm > fuzzy feeling from a lot number than can be traced. Now I know that is no > guarentee either, but for the buck extra, I 'll splurge. I know my supplier > treats all bottles identically when they come in (they are drained and > purged) but i am not sure if all suplliers do this for industrial. I think > this is required for medical. Anyway, I still prefer gas in a botlle marked > medical, be it o2 or he2. Um, this really depends on the supplier. I asked at the gas supplier in Peekskill, NY, and they indicated that bottles for industrial O2 were pumped down once, and medical bottles were pumped down twice, with a flush of O2 between the pumpdowns. So you really need to ask at your supplier. Don't make any presumptions. The biggest risk is that acetylene is dissolved in a solvent, and that if the check valves are dead, the solvent or acetylene will back flow to the O2 bottle if the O2 is run to full empty, and that you will get a smell or a high when you breathe it. Pumping the bottle down twice supposedly eliminates any possibility of residual contaminants, or so the seller told me. As noted below, this supplier filled the O2 bottles from the same source. The Peekskill supplier indicated that they would move bottles from the industrial to the medical supply at need. YMMV. > At 10:22 AM 4/17/96 -0400, Mario Nicola wrote: > >> I heard they were using industrial oxygen for nitrox and telling people > >> aviators was harmful. Any truth to this that you know of? > > > > This is another fine example of BS and strokery. > > > > Aviators oxygen, I believe is checked to make sure it > >has a low moister content for obvious reasons, but I'm not > >an aviator so don' t take my word for this. I believe that Aviator's O2 is USP O2 with a moisture content limit, so that the regs won't freeze. > > As far as industrial and medical oxygen is concerned > >there is absolutely no deference between the two. > > The cylinders are filled from the same liquid oxygen bank, > >the difference is in the maintenance and handling of the tanks, > >and believe me, I have seen industrial tanks in a lot > >better shape than medical cylinders. This does not mean this is > >always the case. > > Oxygen is oxygen is oxygen. No deference other than what you > >are breathing it out of, and impurities that can enter the tank during > >transfer. This is why o2 should always be analyzed before using or > >mixing. Do you believe that lots of folks actually analyze their O2 before using it, by, for example, running it through a gas chromatograph or some other good analysis technique? I don't think running it past a O2 analyzer counts as analyzed. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 Comment: Processed by mkpgp1.6, a Pine/PGP interface. iQCVAwUBMXZFLhRmU0oGr+olAQFFMwQAztbf0IHouIaiFz1gLuEOJ5m/SvbQoxvc aFp0VZKZvxpaQo4R94LOC4nZ3adEDIxyyNIZvKZaEoKzwe2YUTYp6iiYXS+7+7+q xX+48/3NeCfBZBESjQ8cUGyp2RzKT+16LQrGwfDjfSBUDV4ZXOFKmiEIuGoq6Cf6 nxEPAMxjssM= =kZ12 -----END PGP SIGNATURE----- Nick Simicich - njs@sc*.em*.ne* - (last choice) njs@bc*.vn*.ib*.co* http://scifi.emi.net/njs.html -- Stop by and Light Up The World!
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