In addition to being cynical, I was also being ironic.  In a sudden chamber
decompression, everyone inside dies and there is a high risk of injury from
shrapnel from anyone standing nearby.  I haven't
heard of this happening to a chamber recently, but there was a case not too
long ago of a tender opening a chamber door from the inside while it was still
pressurized- not a pretty sight.
Wendell G

Terry Michael wrote:

> Does this pose any danger to the operator?
> What about the tender?
>
>
> --
>
> On Wed, 15 Nov 2000 20:49:36
>  Wendell Grogan wrote:
> >As cynical as I am, I think the slightly less malignant explanation for this
is that a poorly maintained chamber is likely to blow out ("sudden unplanned
decompression") at more than 60fsw pressure
> >(the max on 5).  Since there might be a chamber attendant in or near the
chamber, they probably don't want to run that risk.
> >Wendell G
> >
> >Terry Michael wrote:
> >
> >> Unfortunately you don't often have a choice.
> >> I've heard that of some of the chambers (down in Mexico for example) run
for profit and will start you on a USNAVY 5 just to milk you for more
sessions.... I think they were affiliated with DAN.
> >>
> >>
> >> --
> >>
> >> On Wed, 15 Nov 2000 00:25:57
> >>  Matthias Voss wrote:
> >> >Wendell,
> >> >if this is because of He, I wonder why. Perhaps because of the lower
> >> >density of the mix, this gives less work of breathing, so less CO2
> >> >buildup , and perhaps a better ventilation, which in return helps
> >> >harvest the benefits of the remaining oxygen.
> >> >regards
> >> >Matthias
> >> >
> >> >wgrogan@dc*.ne* schrieb:
> >> >>
> >> >> Matthias-
> >> >> I did not mean to suggest that higher pressures, especially at the
beginning
> >> >> of treatment, might not be needed.
> >> >> Rather, instead of using pure O2 at the 60 fsw level, this work shows
that recovery
> >> >> is better when heliox is used.  You still get the positive effects of
the increased
> >> >> pressure on the bubbles, but without the negative effects of high
oxygen tensions
> >> >> at those pressures.
> >> >> Wendell
> >> >>
> >> >> >Wendell,
> >> >> >the Kiel's Navy Chamber former Chief officer was reported saying that
he
> >> >> >needed the extra pressure to crush down the organic matter surrounding
> >> >> >the bubbles.
> >> >> >My aquaintance worked with him as an medical assistant .
> >> >> >regards
> >> >> >Matthias
> >> >--
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> >> >
> >>
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> >
>
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