Though the domestic fire extinguishers are mainly in the house, I wonder what happens tp FXs when it gets really cold ?
In particular, what happens to AFF mixture please ?
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Thread: frozen fire extinguishers ?
22-12-10, 14:04 #1
frozen fire extinguishers ?I think, therefore I am. I am, therefore I sail.
22-12-10, 15:24 #2
22-12-10, 15:28 #3
I'm reliably informed by someone who knows about these things that AFFF concentrate has a freezing point of -20C, but it's diluted with water in the extinguisher (about 5% AFFF). This will raise the freezing point, but we're not sure what to. It also depends on the type of AFFF concentrate, as they have different characteristics.
As an aside, the foaming agent in extinguishers used to be made of Ox blood. It put fires out, but stank to high heaven
22-12-10, 16:57 #4Registered User
Location : Berkshire
- Join Date
- Mar 2005
Warm it up by the fire before using it!