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On Sun, 8 Jan 1995, David Wilkins wrote: > In-Reply-To: <1DA1A035C3F@fs*.mt*.um*.ac*.uk*> > The oxygen which goes into medical and industrial oxygen cylinders is, I > believe, the same, This is true in the US as well. it's just the care which which the filling is done > which differs. Industrial oxygen cylinders are emptied, then filled up, > with the contents of one of a batch then tested for "purity" (typically > a minimum 99.5% oxygen). Medical oxygen cylinders have a non-return > valve which stops anyone except the supplier putting any gas into it, by > accident or design. Medical cylinders are "vacuumed" to remove all the > previous fill, and each cylinder is tested for purity. > > Having said that, I have had rust dust come out of a medical oxygen > cylinder (not BOC I might add), but no problems with "industrial" > oxygen. > > > David Wilkins [UK] > -- > Send mail for the `techdiver' mailing list to `techdiver@opal.com'. > Send subscription/archive requests to `techdiver-request@opal.com'. >
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