Hello Clueless O2 Handlers,
	We are talking High Pressure O2 here. If you think the wheel needs to =
be reinvented then get in line with all the
Folks that think handling O2 at HP is a job for rocket scientists. =
Simply put, guidelines for the safe handling and dispensing of HP oxygen =
have been published by the ASTM, NFPA, U.S. NAVY, U.S. Air Force, CGA, =
NOAA, and in several technical manuals utilized in various industries =
where HP O2 is widely used and Loss Prevention is a concern.
If you have nothing to lose, this information may be of no concern  to =
you. If you are not familiar with adiabatic compression then learn it =
before you proceed. Contact the SWAGELOK companies and request the six =
page Technical Bulletin No. 5 titled "OXYGEN SYSTEMS".=20
	Most of our procedures for prepping gear that contacts HP O2 is simple =
yet involves the "trade secrets" that keeps competitors whining. =
Auto-ignition of various materials occurs with out warning. The steps to =
prevention are taught through programs such as our IANTD Gas Blender and =
Mixing Technician courses.      =20
	Too bad it's not as simple as  the "use no oil" tag implies.=20
Sempre Deep,
Capt. Jim Mims
Ocean Diving Inc.
For more info go to www.oceandiving.com

-----Original Message-----
From:	John Thornton [SMTP:johnpt@jo*.de*.co*.uk*]
Sent:	Sunday, May 18, 1997 3:32 PM
To:	Steve Lindblom
Cc:	techdiver@aquanaut.com
Subject:	Re: O2 Cleaning BS ??

>
Steve ?
>I got to disagree with this. Around here, at least, the industrial gas
>folks are absolutely useless.
Does that mean that o2 is a simple gas to deal with?
> They are used to using dedicated gear, so
>problems of compatibility, tranfilling or mixing etc never arise, and =
are
>horrified at the thought of putting O2 in anything but a big green =
bottle
>labled O2.
is it stamped o2 clean? are all its components o2 compatable? etc etc,
does he check?
> Plus they work by rote and have no clear understanding of the
>rhyme or reason of why they do anything the way the do.
Exactly
> Try to corner them
>and they cite vaguely remembered regulations that they swear exist, but
>can't actually produce, or tell anectotal horror stories which can't  =
be
>verified.
As above
>The same it true, to a lesser extent, with the med O2 people. They use
>dedicated gear, everything is made to fit together, and never have to =
stray
>beyond their little dedicated world where every question has a simple =
yes
>or no answer.=20
Have you ever seen or heard of the room that they o2 clean everything?
does it exist?
>They never have to make judgements as to whether something is
>clean enough, or safe enough, decisions the O2 diver has to make all =
the
>time.
I dont understand the difference, it is all o2 under pressure..
>
>Besides, industrial gas handling practices often simply aren't =
appropriate
>to tech diving - industrial gas practice is based on havng such a =
massive
>safety margin that the gear can be neglected, mishandlend, and used and
>serviced by near-idiots.
O2 is o2, doesnt matter what it is used for its still o2.
I have to laugh here, it sounds like half the reg service people.
>Most of the bullshit about O2 and O2 cleaning one hears in the dive =
world
>is a result of trying to directly export O2 "wisdom" from the med/indus =
gas
>world to the tech dive world, without making any allowance for =
different
>circumstances and realities. And. as mixtures in the nitrox range have =
very
>few uses outside diving, and there are, as a result, not a whole lot of
>hard info and test data on them.
>If you want an example of what happens when you try to blindly apply
>industrial standards to the dive world, take a look at our tanks - in =
the
>USA are made to the same standard (3A and 3AA) that industrial tanks =
are,
>tanks that are expected to be able to endure being dropped off the back =
of
>trucks, stored outside, refilled daily, and still last 50 or so years. =
The
>result? - the same tank that's an HP tank in europe is a LP tank here, =
and
>holds 20 or 30 less cf (for those of us without a compressor).
What the size etc of a tank has to do with this I dont know, but if it
is relevant, then our Uk tanks are 50 liter at 200 plus bar,(diving
oxygen grade) I believe they dont allow that in the U.S.(I am not sure,
its something I was told)
We have a gas booster manufacturer that has made pumps that operate up
to 10,000 psi, I have one thaT Pumps to 350bar(4500psi) and I store o2
at 350 bar no problem, they have been in business for 35 years.
what i mean by the industry is the people that made the system work for
the man in the street,instead of making a set of rules that dont seem to
apply to any other use of oxygen under pressure.
>
Regards
--=20
John Thornton        Owner/skipper Scapa Flow Technical & M.V.Karin
Polrudden House                  tel/fax 01856  874761
Peerie Sea Loan
Kirkwall
Orkney Scotland
KW15 1UH
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