> I know quite a bit about this actually, because my dad owned
> a fire extinguisher company. The reason you use foam to
> combat a liquid fire is to smother it,
I've been on the "Fire Warden" course at a local station
precisely once, so I'm afraid that I have to disagree
with you slightly.
The contents of the extiguisher are entirely immaterial.
The extinguisher is just there to act as a propellant so
that you can amuse yourself pushing burning cardboard
boxes and/or burning wastebins around while awaiting the
professionals. They bring huge hoses so they can make
the burning stuff really fly :-)
And the powder ones are allegedly good for annoying the
neighbours and rendering anything in the room utterly
useless in the future. I say "allegedly" as the instructor
would not set it off in the courtyard outside as it would
annoy the locals (about 50m away) who had their washing out.
It's a pity that page about lighting a barbie with LOX
has been taken down ...
Antonio
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Antonio Carlini arcarlini_at_iee.org
Received on Wed Apr 14 2004 - 13:55:38 BST