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H2O extinguishers are fit to fight fires on:
  • A
    flammable liquids.
  • B
    electrical equipment.
  • C
    carbonaceous materials.
  • D
    metals, flammable gases, chemical products.
EXTINGUISHING AGENTS USED FOR DIFFERENT FIRE CLASSES:
FIRE CLASS COMBUSTIBLE EXAMPLES EXTINGUISHING AGENT
A Solid Substances Wood, paper, textiles,
Carbonaceous materials
Water, Foam, Dry Powder, Halon (limited)
B Flammable Liquids Oil, gasoline, fats Foam, Dry Powder, Halon/CO2
C Flammable gases Butane, Propane, Naturel gas Dry Powder, Halon/CO2
D Combustible Metal Magnesium, Aluminium, sodium Dry Powder
E Electrical Halon/CO2, Dry Powder
F Oils and fats Cooking oil, frying fat Specific extinguishing agent – Wet Chemical
FIRE CLASS HALON DRY POWDER FOAM WATER WET CHEMICAL
A X X X X
B X X X
C X X
D X
E X X
F X
Note: Carbonaceous materials belong to the Fire class A.

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