Holy cow. BCF should not be used in an enclosed space (like an engine compartment) whilst people are in there....as it can be poisonous.
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Originally Posted by Wiki article
This is a volatile extinguishing agent that should be used only with a breathing apparatus (when volume exceeds 5%).
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AFAIAA we don't use BCF/Halon on the Mainline railway anymore for that reason. Nowadays our extinguishers are CO2 (black band), Powder (blue band) and AFFF, which is short for Aqueous Film Forming Foam (cream band)
It seems to me that perhaps the Llangollen Railway are leaving themselves wide open for a charge of manslaughter if anyone tries to use that extinguisher on the engine.
