What Do the Numbers Mean On a Fire Extinguisher? - Guardian Fire …
网页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 is an “ABC” fire extinguisher and what do the numbers 2A 10BC mean?
网页What is an “ABC” fire extinguisher and what do the numbers 2A 10BC mean? Fires are categorized into 4 groups: A, or common combustible fires (including burning paper, wood, etc.); B, or flammable liquid fires (gasoline, cooking oil, etc.); C, or electrical fires; and D, which are flammable metal fires (including magnesium, sodium, etc.).
2A 10BC Fire Extinguisher vs 1A10BC: What’s the Difference?
网页2023年9月21日 — Here’s what the rating means: 2A: Signifies a water equivalency of 2.5 gallons, making it effective for larger Class A fires involving combustible materials like wood and paper. 10BC: Indicates that the extinguisher is suitable for Class B and Class C fires, which involve flammable liquids and electrical fires, respectively.
Fire Extinguisher Ratings: What the Numbers Mean - Angi
网页2024年7月12日 — The number rating corresponds to which fires the extinguisher can handle and accompanies the letter classification. For example, a standard model may have a label that reads, " 1-A:10-B:C. ". Let's break down what that means: “ A ” refers to the water equivalency of the foam or powder inside the extinguisher.
UL Rating Guide for Fire Extinguishers - How to choose a Fire Extinguisher
网页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.
Meaning of Numbers on a Fire Extinguisher | Classifications - Fire …
网页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.
Fire Extinguisher Ratings - NFPA
网页2022年8月26日 — This blog addresses the details about how portable fire extinguishers get their ratings.
What is the Meaning of the Ratings for Fire Extinguishers?
网页2019年11月13日 — The rating of a fire extinguisher is designed to help users understand the class and size of a fire in which the extinguisher is meant to be used. Only two classifications of fire include a number with the rating, Class A and B. This number has a …
网页The rating number refers to the size of fire that can be extinguished under test conditions. The test method involves adding water and fuel to circular metal trays (to specified sizes) before igniting and extinguishing the fire. A 55B test will see 1/3 water and 2/3 fuel mixed to a volume of 55 litres.
What Do the Symbols on a Fire Extinguisher Indicate?
网页Water fire extinguishers are used to put out Class A fires, which involve common combustibles such as paper, wood, and cloth. These extinguishers are filled with water and pressurized with air. They work by cooling the fuel and …