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On Thu, 10 Jul 1997, Jim Cobb wrote: > > - LP's are generally better than HP's for easy fills, less rust Easy fills -Yes, but less rust?? Have you read the OMS folder? If the PPo2 was a problem, then steel Oxygen tanks would be impossible, but welding tanks last some 30 to 40 years, and I've seen 25 year old 300 bar air tanks still in service. This reminds me of an old PADI text that said that the fO2 would decrease to low levels if the tanks were left with "old" air. I found that the tank had to contain some 10% water for the fO2 to drop from 21% to 16% Regards /Sten /Sten Meyer m87stme@mt*.ch*.se* -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send list subscription requests to `techdiver-request@aquanaut.com'.
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