Fire rating of a fire extinguisher
Mark on fire extinguisher nameplate respectively. The design and calculation of fire extinguisher configuration using fire extinguishing level is an advanced and scientific method commonly adopted by all developed countries in the world. It also meets the need of fire fighting in fire fighting.
A scientific test method is adopted to determine the fire of the corresponding standard fire test model by means of a fire extinguisher. At present, there are only two kinds of fire extinguishing standards, namely A and B. IA and 1B are the minimum fire extinguishing level for fire extinguisher, class a fire and class B fire, and also the basic unit value of fire extinguishing level. There are 3A, 5A, 8A, 13A and 21A in the fire extinguishing range of our current standard series specifications extinguisher...... 55A et al and 1B, 2B, 3B, 4B, 5B... 120B and so on two series.
The word "class" indicates the category of fire extinguishing, A: flammable liquid, B: combustible gas, C: combustible solidD: metal fire, E: live fireThe number indicates the level of fire extinguishing, or the extinguishing capacity of the fire extinguisher,
