What are the classes of a fire extinguisher?

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What are the 5 classes of fire extinguishers?

5 Types of Fire Extinguishers

  • Class A Fire Extinguishers. Class A fire extinguishers are safe for use on ordinary combustible fires, like those fueled by paper or wood. …
  • Class B Fire Extinguishers. …
  • Class C Fire Extinguishers. …
  • Class D Fire Extinguishers. …
  • Class K Fire Extinguishers.

What are the 4 types of fire extinguishers and their uses?

There are five main types of fire extinguishers:

  • Water, water mist or water spray.
  • Foam.
  • Carbon Dioxide.
  • Wet Chemical.
  • Dry Powder- standard or specialist.

What are the 6 classes of fire extinguishers?

6 Types of Extinguishers

  • ABC Powder Fire Extinguisher. …
  • Carbon Dioxide Fire Extinguisher. …
  • Wet Chemical Fire Extinguisher. …
  • Water Mist Fire Extinguisher. …
  • Foam Fire Extinguisher. …
  • Clean Agent Fire Extinguisher.

What is in a class B and C fire extinguisher?

BC Fire Extinguishers are considered a Dry Chemical Extinguisher. … They can put out both Class B and C fires caused by flammable liquids (B) and energized electrical equipment (C). They are filled with either potassium or sodium bicarbonate.

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How many classes of fire are there?

There are four classes of fires: Class A: Ordinary solid combustibles such as paper, wood, cloth and some plastics. Class B: Flammable liquids such as alcohol, ether, oil, gasoline and grease, which are best extinguished by smothering.

What Is in a Class D fire extinguisher?

The only type of Class D fire extinguisher is the Dry Powder extinguisher. The powder agent used is either powdered graphite, granular sodium chloride or copper based, all of which are effective at separating the fuel from the oxygen.

What are the four classes of fire?

Classes of fire

  • Class A. A class A fire is burning flammable solids as fuel. …
  • Class B. Class B fires are burning flammable liquids. …
  • Class C. Class C fires burn flammable gases. …
  • Class D. Class D fires are burning flammable metals. …
  • Electrical. Any fire involving electrical equipment is classed as an electrical fire. …
  • Class F.

What are the 3 main types of fire extinguishers?

OSHA states, “The three most common types of fire extinguishers are: air pressurized water, CO2 (carbon dioxide), and dry chemical.” There also are wet chemical fire extinguishers.

What is the most common class of fire extinguisher?

Dry Chemical extinguishers: Dry chemical extinguishers are the most common and available in few types. These extinguishers will be marked for the classes they are designed to extinguish (e.g., ABC type extinguisher will put out Class A, B and C fires).

What is fire extinguisher class 8?

The job of a fire extinguisher is to cut off the supply of air or bring down the temperature of the fuel. Fig. 9 Follow PASS. Soda – acid fire extinguisher: Carbon dioxide liberated by the reaction of sulphuric acid with sodium bicarbonate solution comes out with a stream of liquid water at high pressure.

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What are the 5 different classes of fire PDF?

There are 4 classes of fire:

  • Class A. Ordinary combustibles or fibrous material, such as wood, paper, cloth, rubber, and some plastics.
  • Class B. Flammable or combustible liquids such as gasoline, kerosene, paint, paint thinners and propane.
  • Class C. …
  • Class D.

What is D class fire?

Class D fires involve combustible metals – especially alkali metals like lithium and potassium, alkaline earth metals such as magnesium, and group 4 elements such as titanium and zirconium. … Therefore, even a small metal fire can spread and become a larger fire in the surrounding ordinary combustible materials.

What is K class fire extinguisher?

Class K fire extinguishers are more effective in extinguishing cooking fires. … NFPA revised this standard in 1998, specifying that “Fire extinguishers provided for the protection of cooking appliances that use combustible cooking media (vegetable or animal oils and fats) shall be listed and labeled for Class K fires.”

What is class F fire?

Class F fires are fires which involve cooking oil or fat. Though technically a sub-class of fires caused by flammable liquids or gases, they differ from conventional fires due to the extremely high temperatures involved.