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Terry McCracken: > > A simpler way to state this is to state it as a ratio: the model > > limits for Haldanean models (which includes Buehlmann models) are > > simply the supersaturation ratios for various compartments. That > > means that you have a ratio, say 5:1, below which you will not form > > bubbles. > > I think that the original calculated ratio was 2:1 but nowerdays it is > belived to be about 1:7. Perhaps you are thinking of the slab (single compartment) model - RNPL tables. BTW, RNPL are still used extensively in Scotland with very few problems. Although the big impact of nitrox means that the club now approves the use of Buhlmann tables. A small anecdote on the original figure. One of the members of our club had a conversation with one of the assistants that worked with Haldane (sorry, don't know if it was Haldane the older or Haldane the younger) several years ago. They were discussing the early decompression experiments with goats. The way they could tell if the goat had DCS was when it squealed and apparently if things were getting boring the assistants used to kick the goats so they could record a result and knock-off work early. Alan awright@gs*.bt*.co*.uk*
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