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Eric Maiken sez: > i propose the following scheme that should address all concerns: simply > change the threads from right-hand to left-hand on the DIN 300 BAR mate for > all mixed-gas tanks/regs. This has already been proposed (and killed, I believe) for Nitrox. (Ed Betts was behind the approach.) It would probably be a Good Idea to do something for Argon (seeing as there have already been a few "incidents"), but seeing as a left-hand DIN valve is overkill, and we only have two of them, do we really want to give one up to argon? -frank -- fhd@in*.ne* | [M]athematics is not the study of intangible Platonic 1 212 559 5534 | worlds, but of tangible formal systems which have arisen 1 917 992 2248 | from real human activities. 1 718 746 7061 | -- Saunders MacLane
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