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At 12:00 19/04/00 , stuart.morrison@sw*.co*.uk* wrote: >Hi All, > >anyone on the other side of the pond give some pointers on decoding the >markings on US supplied Luxfer AL cylinders, mid 90's vintage which I >brought back to the motherland. > >I know what most of it means but what I am interested in is does it state >the alloy grade on the bottle neck? There have been warnings from Luxfer >UK to check the alloy grade on UK cylinders which is easy enough, but I >haven't had any feedback on my US cylinders. > >If it isn't in the markings, any info on how to check the grade? > >What is safe and what isn't? > >They are all deco bottles so never got the same fill-empty-fill cycling >that the rest of my stuff goes through, but they are all at least six >years old, some are eight. > >Thanks in advance, > >S SUSPECT CYLINDERS - LUXFER 6351 ALLOY Series No's E6498 SP6498 DOT-3AL manufactured up to 01/89 ALL DOT-3AL tanks under no's 6498, 7042, 8107, 8364, 8422 All composite tanks under no's 7235, 8023, 8115 All Walter Kidde DOT-3AL TANKS All Cliff Impact DOT-3AL tanks made before July 1990 All Luxfer 80.8 cu ft tanks made before May 1987 All Luxfer Scuba tanks made before August 1987 All other US manufactured tanks made before Feb 1990 except CATALINA - which were NEVER made from 6351-T6 alloy rgrds billyw b d i f i l m s sydney australia ph: 02 9977 0307 fx: 02 9976 0510 mo: 0412 777 175 billy@bd*.co*.au* roam:bdi@wh*.ne* -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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