Dry chemical fire extinguishers extinguish the fire primarily by interrupting the chemical reaction of the fire triangle. The most widely used type of fire extinguisher is the multipurpose dry chemical that is effective on Class A, B, and C fires.
What are the 4 types of fire extinguishers?
There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire. Multipurpose extinguishers can be used on different types of fires and will be labeled with more than one class, like A-B, B-C or A-B-C.
What type of fire is a chemical fire?
Class B fires are a common hazard in industries dealing with fuels, lubricants, and certain types of paint. Smothering these types of fires to remove oxygen is a common solution as are chemical reactions that produce similar effects.
Is ABC fire extinguisher OK for kitchen?
For the kitchen it’s generally recommended to have a multi-purpose fire extinguisher, such as one for Class A-B-C fires, or one that can specifically handle Class B or K fires.
What are the 3 methods of extinguishing a fire?
All fires can be extinguished by cooling, smothering, starving or by interrupting the combustion process to extinguish the fire. One of the most common methods of extinguishing a fire is by cooling with water.
What materials can put out a fire?
Dry power agents are advised as ideal extinguishers. Graphite powder, powdered copper and sodium chloride are recognized as effective dry powder agents. The heat absorption and the smothering effects of dry powder agents are suitable to extinguish a Class D fire.
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.
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.