Nitrox workshop dings - Divers Alert Network

Rubicon Foundation Archive (http://rubicon-foundation.org)Lang (ed.): DANNitrox Workshop, Divers Alert Network, November 2000B. Wienke: Put the second bullet first.M. Lang: Everyone agrees with that? Raise your hands please. Thank you. Oxygen flowrestrictors for gas analysis. Was that something we agreed on?B. Gilliam: Oxygen analyzers should be used with a flow restrictor, not to exceed three liters perminute.M. Lang: We didn't present flow rate data for oxygen analysis. I would suggest we leave therate out.B. Gilliam: Fine.E. Betts: How about a controlled flow sampling device? Can everybody go with that?M. Lang: A controlled flow sampling device. Does anybody have major heart burn with that?Raise your hands. We all agree on that. Good. We've reached three consensusrecommendations on the workshop list.R. Moon: I would strongly push for some statement about when and how the gas analysis shouldbe performed, by whom and something about calibration of the oxygen analyzer.M. Lang: Discussion of that proposition?E. Betts: Everybody here has already agreed that it's certainly most appropriate that the end useranalyze the gas.R. Moon: What about the mixer analyzing the gas? Should that not be in there as well?E. Betts: I certainly would agree that that's appropriate. There needs to be a redundant testsomeplace in here.M. Lang: Do we agree that there should be a redundant chain of testing of the gas? That's thequestion, right?B. Gilliam: By the end user is what we discussed.M. Lang: We discussed the end user. Did we also agree that there should be a redundantanalysis of the gas at the pumping end and at the end user end? Did we agree on that, yes orno?T. Mount: What we agreed on is that the end user or redundant source would verify the gas.Some of us require the end user to do it, some don't, but he should at least verify it so it'sanalyzed twice.M. Lang: Should we say end user verification of gas?D. Richardson: What we want to do is show good practice in mixing the gas, but each individualuser needs to take final responsibility to analyze the gas that they're breathing. That'sinescapable. It's a responsibility that's placed on every end user in the whole trainingprocess.B. Wienke: End user verification of gas analysis.E. Betts: Required.B. Bjorkman: It's very important too that the mixer, as part of their process, analyzes the gas.Otherwise, he has no idea if he's produced the correct mix.D. Kerem: Verification implies that someone has tested it earlier.M. Lang: That's an implied definition. Can we live with that fourth bullet, end user is requiredto verify gas analysis? Raise your hand, please. Done.J. Hardy: How about the training agencies' encouragement of dive computer use? The transitionfrom tables to dive computers? Do we have any agreement on that? We had general184