The numbers indicate the size rating of each extinguishing agent. Here’s how it works: The Class A size rating represents the water equivalency. Each number represents 1 ¼ gallons of water. For instance, 2A means the extinguisher is just as effective as 2 ½ gallons of water. 4A is equivalent to 5 gallons of water.
What do the Numbers on Fire Extinguishers Mean? The numbers you might see accompanying the letter class of a fire extinguisher refer to the extinguishers size rating for class A and B fires. Other classes don’t have such a rating. For class A fires, the number corresponds to its effectiveness relative to 1 ¼ gallons of water.
#207 – What Does the Number on a Fire Extinguisher …
As part of a fire extinguisher’s classification, the numbers on the label can mean either: How much water would be required to match the agent’s power against Class A fires. The square footage of Class B fires the agent can extinguish. For each A, the extinguisher contains the equivalent of 1.25 gallons of water.
The numbers you might see accompanying the letter class of a fire extinguisher refer to the extinguishers size rating for class A and B fires. Other classes don’t have such a rating. For class A fires, the number corresponds to its …
People Also Ask what does a number on a fire extinguisher mean
What do the numbers on a fire extinguisher mean?
Since Class A, B, and C fires are all found in conventional homes and businesses, ABC fire extinguishers are designed to put out all three types of fires. You might come across a fire extinguisher labeled 4A:20B:C. The numbers indicate the size rating of each extinguishing agent.
What does class a mean on a fire extinguisher?
Here’s how it works: The Class A size rating represents the water equivalency. Each number represents 1 ¼ gallons of water. For instance, 2A means the extinguisher is just as effective as 2 ½ gallons of water. 4A is equivalent to 5 gallons of water.
What does 2A mean on a fire extinguisher?
The Class A size rating represents the water equivalency. Each number represents 1 ¼ gallons of water. For instance, 2A means the extinguisher is just as effective as 2 ½ gallons of water. 4A is equivalent to 5 gallons of water.
What does 3A mean on a fire extinguisher?
If you see an extinguisher with “3A” that means it would be as effective as using 3 ¾ gallons of water on the fire. This helps gauge just how large a fire you can tackle.
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What is FIRE EXTINGUISHER? What does FIRE EXTINGUISHER mean? FIRE EXTINGUISHER meaning Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher