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Sue
Because in the standardss until the recent changes it was required that
you have experience to at least 48 meters. He had to follow standards.
Today we have two alternatives either intermediate trimix or the deep
air route. Either way divers need experience in accent management and
all the planning and general altnernations in dive style befor going on
to full trimix.


The intermediate trimix course has no air.EANx dives deeper than 40
meters, it has 4 mix dives with two between 40 and 50 meters and two
between 50 and 60 meters. After this course and a log of 12 additional
dives (on mix) the student may take the full trimix course which has a
lot more information in it and additional skills. It has three more mix
dives two of which must be deeper than 60 meters and no deeper than 90
meters (in the UK this is rectricted by HSEe to 80 meters approximately)

Tom Mount 
Davison, Sue wrote:
> 
>         >Kevin is one of the biggest pushers for iANTD not to have air
> dives
>         deeper than 50 meters every since he first came on board. He is
> the co
>         author of the new intermediate trimix workbook we are publishing
> January
> 
> So why does he insist on having to do deep air prior to doing Trimix.  I
> had someone contact us to see if we did trimix training without the
> prerequisite of deep air as he was finding it difficult to find someone
> in the UK willing to do this - one person he had tried was Kevin.  We
> have now found someone who will do this for him.  I know you keep saying
> that deep air is not a requirement - but it still has not filtered down
> to all the training outlets.
> 
> Sue
> 711 2708
> sd1621@gl*.co*.uk*
> +44 (0) 181 966 2708
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