An “ABC” extinguisher will have a label like this, indicating that it may be used on class A, B and C fires. extinguishers are extremely effective at putting out fire.
What is B type a fire?
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 the symbol for a Class B fire?
Class B fires involve flammable or combustible liquids such as gasoline, kerosene, grease and oil. The numerical rating for class B extinguishers indicates the approximate number of square feet of fire it can extinguish. The geometric symbol indicating Class B is a red square .
What are class A B and C fires?
What types of fires can be extinguished with carbon dioxide (CO2) fire extinguishers? Class B fires which involve flammable liquids and gases, solvents, oils , greases (excluding cooking oils/greases in depth) tars, oil-based paints and lacquers. Class C fires which involve energized electrical equipment.
What is fire extinguisher B?
Class B. Class B fires involve flammable and combustible liquids such as gasoline, alcohol, oil-based paints, lacquers. Therefore, extinguishers with a B rating are designed to extinguish fires involving flammable and combustible liquids.
What color is a Class D fire?
2.2. 4 CLASS “D” – These fires involve combustible metals, such as magnesium, titanium, zirconium, sodium, lithium and potassium. Generally the extinguishing agent is referred to as DRY POWDER. These extinguishers should be identified by a star containing the letter “D”, if color- coded, the star is yellow .
What are the 5 types of fire extinguishers?
When it comes to the types of fire extinguishers, there are five main types including wet chemical, CO2, dry powder, foam and water .
What are the 4 types of fires?
What are the fire safety rules? Class A – fires involving solid materials such as wood, paper or textiles. Class b – fires involving flammable liquids such as petrol, diesel or oils. Class c – fires involving gases.
How do you put out a Class B fire?
Class B fires should be extinguished using foam, powder, or carbon dioxide extinguishers , according to the Fire Equipment Manufacturer’s Association. These types of extinguishers work by cutting off a fire’s oxygen supply.
What causes Class B fire?
Class B fires are fires which involve flammable or combustible liquids . The presence of these liquids, which are also known as hydrocarbon fuels, represent the fuel aspect of the fire triangle (heat, fuel and oxygen) and provide the materials necessary to begin, develop and maintain a fire.
What is an example of a Class C fire?
A Class C fire is the burning of flammable gases, which can be very dangerous and highly explosive. These include gases such as butane and propane in gas canisters , which you’d expect to find in certain building trades. You will also find these with gas camping stoves and gas barbeques.
What is a Class C fire rating?
A Class C or Class 3 fire rating has a flame spread rating between 76 and 200 . This rating incorporates building materials like plywood, fiberboard, and hardboard siding panels. It also includes any of the faster burning whole woods.
What type of fire extinguisher is used for Class B?
CO2: A carbon dioxide fire extinguisher works on a Class B fire by expelling CO2 to suffocate the fire, removing the oxygen necessary to keep it burning. It also helps with removing the heat, as the discharge is very cold.
What is in a Type B fire extinguisher?
“B” LIQUIDS
Two commonly used chemicals are effective in fighting these types of fires. Monoammonium phosphate effectively smothers the fire, while sodium bicarbonate induces a chemical reaction which extinguishes the fire.
Which fire is Class B fire?
Class B fire refers to a fire involving flammable liquids such as petroleum (gasoline, kerosene, petrol, diesel, octane, etc.), paint, alcohol, solvent, oil and tar, etc. that normally do not leave any embers or residues (or very low amounts of residues).
What are the Colour codes of fire extinguishers?
- Red – Water (both spray and mist)
- Blue – Dry powder.
- Cream – Foam.
- Black – Carbon dioxide (CO2)
- Yellow – Wet chemical.
