In message <2280F8020F4A@fs*.mt*.um*.ac*.uk*> "A.APPLEYARD" writes: >> I live in England. It is well known that at many big oxygen suppliers >> medical oxygen and industrial oxygen come from the same big tank, and the >> only difference between them is the price. The tanks for medical gas are inspected and cleaned more often than for commercial tanks. They are also emptied before filling. Regards Roy F Parrott (Essex.UK) Compuserve: 100103.3260 Internet: roy@el*.de*.co*.uk*
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