David-

This is a very dangerous system! I mean what if you are testing your mix 
and someone on the boat had one more banger than they should have for 
lunch, and then he or she "cuts the cheese" so to speak? Your readings 
would be waaaaay off!

  Jim

On 11/19/97 1:51 PM David Shimell (shimell) wrote:

>Jim
>
>I think you may not realise the obvious benefits of our "cheesey smelling   
>limey helium".
>
>Standard procedure in the UK is to analyse the gas for O2 content then   
>analyse for He content.  Standard O2 galvanic cells are used for O2   
>analysis as elsewhere.  He analysis is by taste.  Gases in the 20-40% He   
>content taste like Mild Cheddar, 40-50% are Medium Cheddar, 50-60% are   
>Mature.  I must confess that I have not yet had to sample a mix greater   
>than this but I have it on reliable information that Extra Mature covers   
>everything else.  This has been proven empirically to be more accurate   
>than the Donald Duck test as used by many divers on the other side of the   
>pond when analysing tasteless seppo He.
>
>Naturally, a UK Trimix diver always carries a packet of crackers on each   
>dive.
>
>At least our He does not taste of Garlic like that breathed across the   
>Channel.
>
>David Shimell
>Project Manager, Sequent Computer Systems Ltd, Weybridge, UK
>Email: shimell@se*.co*


 -------------------------------------------------------------------
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