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Dan Kell writes: >I have developed quite an interest in the DCIEM tables after reading Lippman's >Deep into Diving. I recently saw an article in Underwater USA giving a US >address to get them. I had asked Bill Mayne for a source but he didn't have >one. I just received my tables in the mail today and thought I would post the >address to order them from. For anyone else with an interest. > I also have bought some DCIEM tables (obtained from Dive Experience, Williamstown, Melbourne, Australia for any locals) for the same reason as Dan - reading John Lippman's book (I highly recommend it). I have also seen the DCIEM tables advertised under a NASDS heading, so they may be available from that source as well. I also have the PADI RDP (on which I was trained) and Dr Max Hahn's Deco '92 tables (German). I have generally dived the Deco '92 tables and found them to be more conservative than the PADI RDP for most profiles, however they outgas totally in 6 hours (justified by the conservative first dive decompression avoiding VGE which slows outgassing considerably). In contrast, the DCIEM tables take anything up to 18 hours to outgas completely. I have re-calculated some of my two-day dive sequences on the DCIEM tables and often found that they would have limited my diving on the second day more than either the RDP or the Deco '92 tables (which generally indicate that you are clear of N2 after an over-night surface interval). Hence, if I was going to do a live-aboard trip, I would probably use the DCIEM tables as they seem to be the only ones to limit multi-day diving (I understand the NAUI tables also do this, but I have never used them). The only problem with the DCIEM tables is the need to multiply the bottom time by the repetitive factor rather than adding a RNT. This makes mental calculation with them a little more challenging! Cheers, David. ______________________________________________________________________________ David Giddy, | Voice: +61 3 253 6388 Telecom Research Laboratories, | Fax: +61 3 253 6144 P.O. Box 249, Clayton, Victoria 3168, AUSTRALIA | Net: d.giddy@tr*.oz*.au* X400: g=david s=giddy ou=trl o=telecom prmd=telecom006 admd=telememo c=au ------------------------------------------------------------------------------
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