Fire safety training is important for all fire wardens. Part of this training includes understanding the different types of fires that can occur. Class A fires involve solid materials such as wood, paper, rubber, plastic and cloth. Class B fires involve flammable or combustible liquids, such as petrol, oil and paint. Class C fire involve flammable gases, such as propane, butane and methane. Class D fires involve flammable metals, such as potassium, aluminium and titanium. Class F fire involve cooking oils and fats. Each type of fire requires different extinguishing methods, so it is important for fire wardens to be familiar with all the different types of fires.