Fires involving wood, paper, straw, textile and other combustible solids containing carbonaceous material.
Suitable extinguishers - Water, Foam and Dry Powder
Fires involving petrol, oils, fats, solvents, paints and other flammable liquids.
Fires containing flammable gases such as methane, acetate and manufactured or natural gas, etc.
This specialised classification covers fires involving combustible metals. Special powder may be applied by trained personnel only, using powder extinguishers with low velocity applicators.
Cooking oil fires.
Suitable extinguishers - Foam, Dry Powder and CO2
Class C fires can present a considerable explosion risk if the fire is extinguished by means other than turning off the gas supply. For this reason, untrained personnel should be discouraged form using extinguishers on gaseous fires.
Wet Chemical Extinguishers give maximum protection for this risk.