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David Doolette wrote;
***quote***
In Australia:

medical oxygen cylinder has a black body and the shoulder is painted in four
quarters, alternating black and white.

***end quote***

No David.  That is the colour of a very few nitrox cylinders (called
"medical diving grade oxygen in nitrogen", and you thought Enriched
Air Nitrox was a mouthfull!!)

Medical Grade O2 is a black body with a *solid white* shoulder
Industrial Grade O2 is all over black
Medical Grade air is french grey body with the shoulder in quaters,
alternating black and white
Medical Grade Helium is solid brown (like baby shit) (and bloody expensive)
Medical Grade Heliox is Brown body and alternating brown and white
quaters on the shoulder  (don't even ask how much this costs!)
I think industrial Grade air is a french grey body with a solid black
shoulder (but I am *very* willing to be corrected)
Industrial Nitrogen is all over french grey
The navy use blue for Nitrox
There is a different blue for argon.

There are moves afoot to make medical air the funny greeny yellow that
is (I think) the Euro standard.  A lot of fire brigades have switched to
the new colour, and I gather that it is currently optional.

SCUBA cylinders have an exemption and can be any colour.

Cheers Jason (Devistated that clans are a Victorian invention, I hate
Melbourne, and have thrown out my Cameron Tartan tea cosy)

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