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Turn the extiguisher upside down, and give it a shake.
B. Solvent
NO!!!!! Use a Dry Chemical extinguisher
NO!!!!! Use a Dry Chemical extinguisher
Flammable metals often require special chemicals to extinguish, assuming there are any. So, in fact, you WOULD use a "chemical extinguisher", but probably not an ordinary dry chemical extinguisher.
Depends entirely on what the chemical is.
Assuming this extinguisher is following Australian rules, that is a dry chemical extinguisher. If this is an American extinguisher, there are no standards, only conventions, and I couldn't tell you by color alone.
You would not want to use a pressure water extinguisher on any electrical fire due to the possibility of electricity being conducted through the water and injuring someone. A CO2, dry chemical or "clean agent" (e.g., "Halogenated") extinguisher would be a better choice for an electrical fire, knowing that dry chemical powder will make quite a mess.
With a dry chemical or CO2 fire extinguisher. Anything not conductive certainly not water.
A type chemical fire extinguisher.
argon and tetrafluoromethane
white