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Hi George,

At the risk of throwing another log on the deep air fire, I have a question.
Each time I get a EANx fill, whether it be 32, 36, or the dreaded 80,   I
sign a log which says that I have tested the mix and I write down the test
percentage along with a C-card #.   As nearly as I can recall, I have never
been asked to analyze a trimix fill...but  I do anyway (BTW ... wisely
suggested by my trimix instructor).  While we cannot test the He %,  the O2
% should indicate whether the right mix has been achieved.   

Could it be that the missing WPB divers had the wrong mix which may have
been a contributing factor to the accident?  Do we know which gases they
were carrying ( probably too early to tell)?  Sadly, we may never know the
real cause unless their gear is recovered...and maybe not then,  if
cylinders are empty.

Bruce Jones


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