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<excerpt><<<<<<The gas Richard reported to the charter
operation was
19/30 or 19/33 according to every account I have received.  But that
information came from Richard.  Was Richard covering up a mistake he made
in blending???  I later received information from several sources the gas
in his BC was analyzed and the contents were reported to be (depending on
the source) between 18-19% O2 and 30-35% He.>>>


</excerpt>

Dear Bill, 


Thanks for the report.  Now for some questions and comments. 


You say the gas in the BC was analyzed showing between 18-19% O2 and
30-35% HE  Was this analysis done at a laboratory that could use a gas
spec system that will break out each individual gas or was this just a
simple oxygen analyzer with the rest just being assumed?


Any possiblility he has argon in his main tanks ? What about CO? Boat
compressors do have a nasty habit when the wind blows the wrong way to
get carbon monoxide from exaust in the intake of a compressor. 


Did the ME do a chemical analysis of his blood? What other medications
was he on prescribed or otherwise? 


Post fatality analysis is the key to understanding the what, when and
why. 





Joel Silverstein

Scuba Training + Travel Co.

http://www.NitroxDiver.com
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