The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish. Located on the fire extinguisher label is the UL rating …
The numerical rating for a class B fire extinguisher refers to the number of cubic feet that the Fire Extinguisher will be able to extinguish. • Example: A Fire Extinguisher with a rating of 1A:10B:C would contain agents equal to 1.25 gallons of water (1 x 1.25) and would be able to extinguish 10 square feet of a class B fire.
Need Help Understanding Fire Extinguisher Ratings? – Angi
4. Water Mist Fire Extinguisher: This extinguisher works on most fire classes by releasing tiny water molecules to suffocate the fire and cool temperatures. The water in this fire is safe to use on electrical fires. 5. Foam …
Fire Extinguisher Ratings Explained. The importance of fire safety is oftentimes overlooked in favor of other everyday concerns. Changing the batteries in your fire alarm panel, locating the optimal evacuation route in your building, and ensuring you have the proper fire extinguishers in the most advantageous spots all trickle to the bottom of our never-ending to-do lists.
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What do the ratings on a fire extinguisher mean?
Located on the fire extinguisher label is the UL rating (Fire Extinguisher Ratings). The UL rating is broken down into Class A and Class B:C ratings. These numerical ratings allow you to compare the relative extinguishing effectiveness of various fire extinguishers.
What do the numbers on a fire extinguisher mean?
These numerical ratings allow you to compare the relative extinguishing effectiveness of various fire extinguishers. For example: An extinguisher that is rated 4A:20B:C indicates the following: – The A rating is a water equivalency rating. Each A is equivalent to 1 1/4 gallons of water. 4A = 5 gallons of water.
How do I know if my fire extinguisher is good?
Make checking your fire extinguisher a regular part of your home fire safety routine. When you check the batteries on your smoke alarm, check your extinguisher too.
What does C mean on a fire extinguisher?
When "C" is present in the classification/UL rating, it indicates that the agents in the fire extinguisher are non-conductive, meaning that you can use them on an electrical fire (meaning anything that is plugged in).
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Fire Extinguisher Ratings Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher