The B determines the type of fire that can be extinguished, and in this case it would be flammable liquids such as gasoline, grease, oil, diesel fuel, and kerosene.
The number indicates the approximate number of square feet the unit can extinguish, so a B-1 would be a relatively small extinguisher.
The type of fire it is designed to extinguish
B refers to Class B fuel, i.e., flammable/combustible liquid or gas.
The letter "B" on a B1 fire extinguisher indicates that it is suitable for extinguishing fires involving flammable liquids, such as gasoline, oil, and paints. The "1" signifies the extinguisher's capacity, meaning it is rated for use on small fires. This classification helps users quickly identify the appropriate extinguisher type for specific fire hazards.
You need to use a Class B extinguisher on flammable liquids.
Burning liquids such as gasoline, kerosene, paint, acetone, and so on.
A type b extinguisher puts out a class B fire, i.e., flammable/combustible liquids and gases.
the type of fire it is designed to extinguish <><><> Extinguishers can be class A,B,C,D or K- as said- the type of fire it will extinguish. A type B fire involves burning liquids, such as gasoline, paint, etc.
69er
The B determines the type of fire that can be extinguished, and in this case it would be flammable liquids such as gasoline, grease, oil, diesel fuel, and kerosene. The number indicates the approximate number of square feet the unit can extinguish, so a B-1 would be a relatively small extinguisher.
A Class B fire extinguisher. Below is an article about the different types of fire extinguishers.
Liquid
class b fuels for fire extinguisher training