Class A foam fire extinguishing agent and Class B foam fire extinguishing agent are a new type of high-efficiency compressed air foam fire extinguishing agent.Its main advantages are fast fire control speed,high water efficiency at the fire site,significant effects of heat insulation,radiation prevention,and re-ignition prevention,and can greatly reduce water damage at the fire site.

　　Soluble-resistant foam has good stability to water-soluble flammable and flammable liquids.This kind of fire extinguishing agent has good stability and can resist the damage of water-soluble flammable and flammable liquids.When this alcohol-resistant foam liquid merges with water and generates foam under mechanical action,a film is formed on the foam wall.This film can effectively prevent the water-soluble solvent from absorbing the water in the foam,thereby protecting the foam,So that the foam can better cover the surface of the water-soluble solution and play a role in extinguishing fire.In addition,the water separated from the anti-solvent foam can also dilute the surface of the water-soluble solvent,which is also conducive to extinguishing fire.

　　Material combustion must have three necessary conditions at the same time,namely combustible material,combustion-supporting material and ignition source.According to these basic conditions,all fire-fighting measures are aimed at destroying the already formed combustion conditions,or stopping the chain reaction of combustion to extinguish the fire and control the fire within a certain range,which will greatly reduce the fire loss.

　　Keep in mind the fire alarm number 119.After you connect to the fire alarm phone,you must tell the alarm center the name and address of the fire unit,what is on fire,the size of the fire,and the scope of the fire.