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.
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 Letters and Numbers Mean on Your Fire …
What Do the Letters and Numbers Mean on Your Fire Extinguisher? The letters and numbers mean all very important information for both the service technician to know and you the customer to know. The more …
The typical home fire extinguisher available at the home center is marked with a series of numbers and letters to indicate what type and how large of a fire the extinguisher can be used on. The letters indicate the type material the extinguisher can be used on; A for combustible solids (paper, wood and trash), B for combustible liquids (gasoline, oil, acetone) …
People Also Ask what do the numbers and letters on fire extinguishers mean
What is the difference between 5BC and 10BC fire extinguisher?
What is the difference between 5BC and 10BC fire extinguisher? In our tests, the 10BC units discharged only a fraction of a second longer than the 5BC, hardly “twice” anything. The 10BC, on average, discharged only 25% more fire suppressant than the 5BC. What is the best size fire extinguisher for home use?
What size fire extinguisher do I need for my home?
The living room should have a 2A: 10: B: C or 5-10 pounds fire extinguisher every 40 feet.The garage with inflammable objects should have a 3A: 40B-C or 5-10 pounds fire extinguisher installed.The kitchen should have a 2.5 pounds extinguisher.
What size fire extinguisher do I need for my business?
What size fire extinguisher does my business need?Fire Risks: Be aware of the unique hazards within your operation. …Room Size and Materials: The size of a room and how it’s organized are important as well. …Employee Ability: A fire extinguisher is only as effective as the individual controlling it, so be sure that your employees can handle the one that you choose. …
What size is a 2a10bc fire extinguisher?
These numbers are a UL/ULC rating that indicates the amount of firefighting capacity with the square feet covered for the type of fire. Therefore a 2A: 10 BC extinguisher means 2.5 gallons of water (firefighting capacity) for 10 square feet covered for a BC Type fire.
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TYPES OF FIRE AND FIRE EXTINGUISHERS | WHICH FIRE EXTINGUISHER TO BE USED ON WHICH CLASSES OF FIRE Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher