Wet chemical is an agent that extinguishes the fire by removing the heat of the fire triangle and prevents reignition by creating a barrier between the oxygen and fuel elements.
Why would you use a wet chemical fire extinguisher?
Wet chemical fire extinguishers tackle fat and grease fires in kitchens (Class F), for example deep fat fryer fires. In addition, some wet chemical extinguishers can tackle Class A fires (wood, paper etc) and Class B fires (eg petrol).
When should you use a wet chemical fire extinguisher?
Wet chemical fire extinguishers are used on deep fat fryer fires and fat fires (Class F), although some can also be used on A class fires (solids). Only tackle small fires with an extinguisher.
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.
When should you not use a fire extinguisher?
When do you not use a fire extinguisher?
- The fire is too big or would require more than one fire extinguisher.
- Fires involving escaping gases, high voltage electrics.
- The evacuation route is obstructed.
- There are high levels of smoke.
- The area is too hot.
- You have not been trained.
Can you use any fire extinguisher on any fire?
There is no one extinguisher type which works on all classes of fire. Below is a summary of the classes of fire, and a quick reference chart showing which types of extinguisher should be used on each. We then provide a detailed explanation of each type of fire extinguisher below.
How long does a wet chemical fire extinguisher last?
Fire extinguishers can last for anywhere between ten and twenty years if properly maintained. The lifetime of an extinguisher can vary depending on the manufacturer and style, but all extinguishers can have their life extended by proper care and maintenance.
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.
Do fire extinguishers expire?
Even if there’s no expiration date, it won’t last forever. Manufacturers say most extinguishers should work for 5 to 15 years, but you might not know if you got yours three years ago or 13. … If it falls anywhere else, the extinguisher is unreliable and should be serviced or replaced.