Classification of Fires and Fire Extinguishers Information Sheet

Use our classification of fire and fire extinguisher information sheet as a training guide for your new and current employees

Fire extinguishers in the workplace is a common feature due to fire safety requirements.  Employees should have an awareness of the types of fires that could occur in the workplace and the specific type of extinguisher that could be used to put out that fire if used.  The information sheet listed below is a simple way of providing that information as part of an induction programme for new employees, or as a refresher for existing employees.

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Classification
of fire
Further information Type of extinguisher
class a fire symbol Free burning solid carbon materials, such as wood, paper or textiles. Extinguishers which work best on this type of fire operate by cooling the heat source.

Water, Foam, Dry Powder, Wet Chemical

 

Fire blanket can also be used on a small fire provided it fully covers the burning materials.

class b fire symbol Flammable liquids such as petrol, diesel or oils. Extinguishers which work on this type of fire operate by smothering the flames.

Dry Powder, Foam and Carbon Dioxide (CO2).

 

Fire blanket can also be used on a small fire provided it fully covers the burning materials.

class c fire classification

Gases, flammable gases and liquefied gases either leaked or spilt. Extinguishers work by smothering.

 

Dry Powder

 

Fire blanket can also be used on a small fire provided it fully covers the burning materials.

 

Warning. For a gas fire, the priority is to stop the flow of gas – if safe to do so. Extinguishing the fire whilst the fuel continues to flow could cause an explosion hazard.

class D fire classification symbol Metal fires, such as aluminium or magnesium. Extinguishers work by smothering using graphite or talc. Specially formulated Dry Powder.
No longer classified (Formally Class E) Electrical equipment fires. Extinguishers used on electrical fires work by smothering.

CO2, Dry Powder.

 

Warning. Water-based extinguishers, including foam extinguishers, carry a risk of electric shock when used near live electrical equipment.

class F fire classification symbol Fires involving cooking oils – high temperature cooking. Extinguishers smother the fire but you also need to isolate the heat source. Wet Chemical

Keep your employees informed with our health and safety information sheets.

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07875 535 558