Types of Fires & Types of Fire Extinguishers

Types of Fires & Fire Extinguishers

Do you know the different types of fires? Not all fires are the same. Per NFPA 10, items burning may be classified into one or more of the following fire classes and your fire protection specialist will select the right fire extinguisher size and agent for the hazzard.

Types of Fires:

  • Class A – Ordinary Combustible Materials – Wood, paper, cloth, rubber, and many plastics
  • Class B – Flammable Liquids and Gases – Gasoline, petroleum greases, tars, oils, oil based paints, solvents, alcohols, propane, and butane
  • Class C – Energized Electrical Equipment – Computers, servers, motors, transformers, and appliances
  • Class D – Combustible Metals – Magnesium, titanium, zirconium, sodium, lithium, and potassium
  • Class K – Cooking Oils & Greases – Animal and vegetable fats

Each type of fire needs its own type of extinguisher. Below is a chart that explains all the different fire extinguishers by type of fire.

Types of Fire Extinguishers:

  • ABC Dry Chemical – Suitable for A, B, & C. Commonly used in general building protection, office buildings, retail stores, warehouses, and woodworking shops
  • BC Dry Chemical – Suitable for A & B. Commonly used in fuel storage, oil based paint storage, paint spray booths, auto repair shops, aviation tugs and fueling carts
  • Clean Agent – Suitable for A, B, & C. Commonly used in Computer server rooms, telecommunication, manufacturing facilities, aviation flghtlines & maintenance facilities, and offices.
  • Class K Wet Chemical – Suitable for A & K. Commonly used in restaurant kitchens, cafeteria kitchens, and food trucks
  • Water – Suitable for A. Commonly used in office buildings, auditoriums, convention halls, oxidizer storage, pool chemical storage
  • Water Mist – Suitable for A & C. Commonly used in hospitals, museums, libraries, telecommunications, computer rooms, server rooms, clean rooms
  • Foam – Suitable for A & B. Commonly used in fuel storage, oil based paint storage, dip tanks
  • Carbon Dioxide – Suitable for B & C. Commonly used in welding shops, auto repair shops, manufacturing facilities.
  • Class D Dry Powder – Suitable for D. Commonly used in machine shops, foundries, metal fabrication shops, and heavy industries.