What are the 4 classes of fire extinguishers and their designed use?

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What are the classes of fire and their extinguishers?

Fire Extinguisher Types

Class of Fire Description
Class A Fires Fires in ordinary combustible materials, such as wood, cloth, paper, rubber, and many plastics.
Class B Fires Fires in flammable liquids, combustible liquids, petroleum greases, tars, oils, oil-based paints, solvents, lacquers, alcohols, and flammable gases.

What are the six classes of fire extinguishers?

There are six classes of fire: Class A, Class B, Class C, Class D, ‘Electrical’, and Class F. Water and Foam fire extinguishers extinguish the fire by taking away the heat element of the fire triangle. Foam agents also separate the oxygen element from the other elements.

What is a Class D fire extinguisher?

A Class D fire extinguisher is used on combustible metals, such as magnesium, titanium, sodium, etc., which require an extinguishing medium that does not react with the burning metal. Extinguishers that are suitable for Class D fires should be identified by a five-point star containing the letter “D.”

What is a Type D fire?

Class D fires only involving combustible metals – magnesium, sodium (spills and in depth), potassium, sodium-potassium alloys uranium, and powdered aluminum.

What is the difference between ABC and co2 fire extinguisher?

CO2s are designed for Class B and C (flammable liquid and electrical) fires only. Carbon Dioxide is a non-flammable gas that extinguishes fire by displacing oxygen, or taking away the oxygen element of the fire triangle.

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