The numbers indicate the size rating of each extinguishing agent. ... For instance, 2A means the extinguisher is just as effective as 2 1⁄2 gallons of water . 4A is equivalent to 5 gallons of water. The Class B size rating indicates the square footage the extinguisher can cover.
What does the number rating on a fire extinguisher mean?
Each whole number increase in the rating increases the panel dimensions by 2 feet. The number before the B indicates the area of the liquid spill , which is burning, that the extinguisher can extinguish. A 1B rating would extinguish a 2.5 square foot liquid fire and a 2B would extinguish a 5 square foot liquid fire.
What are fire extinguisher ratings?
Fire Extinguisher Ratings
Fire extinguishers are classified by fire type. The A, B, C rating system defines the kinds of burning materials each fire extinguisher is designed to fight. The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish.
How many pounds is a 2A fire extinguisher?
Here are some common fire extinguisher sizes and their corresponding weights: 2A:10B:C – 4 lbs . 3A:40B:C – 5 lbs.
Is 2.5 lb fire extinguisher enough?
In most cases, bigger is better, but sometimes the largest extinguishers are too heavy to maneuver. Here’s my recommendation, choose a 5-10 lb. extinguisher for your garage or home workshop, especially if you have flammables, electrical equipment, etc. A 2.5 lb.
What does ABC mean in fire extinguisher?
Dry Chemical Extinguishers come in a variety of types. You may see them labeled: • “DC” short for “dry chem” • “ABC” indicating that they are designed to extinguish class A,B,and C fires , or • “BC” indicating that they are designed to extinguish class B and C fires.
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 a 10 BC fire extinguisher?
Classification: 1A:10B:C. Good for: The smallest fires including those in the home or vehicles. It provides the equivalent of 1.25 gallons of water against Class A fires. The number 10 indicates that the extinguisher fights Class B fires as large as 10 square feet . It is safe for Class C fires.
What is a Type D fire?
Class D fires only involving combustible metals – magnesium, sodium (spills and in depth), potassium, sodium-potassium alloys uranium, and powdered aluminum.
What does letter on fire extinguisher represent?
Extinguishers are classified by a number and letter symbol. The number indicates the relative size of the extinguisher, and the letter indicates the type of fire it will extinguish .
What does 2 A 10 B C mean?
A fire extinguisher that is rated 2A:10 BC means it has a fire fighting capacity equivalent to: 2.5 Gallons of Water and 10 Square Feet for a BC Type Fire . 1 .
How many pounds is a 2A 10bc fire extinguisher?
Fire Extinguisher, Dry Chemical, Monoammonium Phosphate, 5 lb , 2A:10B:C UL Rating.
How much does a 20 lb fire extinguisher weight?
Weight – 20 lbs. Shipping Weight – 33.5 lbs . Cylinder Diameter – 10′′ Overall Height – 23′′
How long does a 2.5 lb fire extinguisher last?
Fire extinguishers last between five and 15 years but they all ultimately expire and become ineffective, no matter what fire-fighting substance they contain.
Is ABC fire extinguisher OK for kitchen?
For the kitchen it’s generally recommended to have a multi-purpose fire extinguisher , such as one for Class A-B-C fires, or one that can specifically handle Class B or K fires.
What is the best type of fire extinguisher for the home?
Powder fire extinguishers are most often recommended for use in the home. When used, these fire extinguishers spray a chemical-based powder that effectively smothers the flames and subdues the source of the fire.
