Substances that can effectively destroy combustion conditions to inhibit or terminate combustion are called fire extinguishing agents. There are four general types of fire extinguishing agents.
Water fire extinguishing agent
It mainly relies on cooling and asphyxiation to extinguish fire. The following substances cannot be put out with water on fire: flammable liquids, such as gasoline, kerosene, which are less dense than water or insoluble in water; Substances that burn in water, such as potassium, sodium, calcium carbide, etc.; Electric fire, do not put out with water before the power is cut off; Strong acid, after adding water may make acid splash hurt; Precision instruments; Valuable documents.
Dry powder extinguishing agent
Substances that can effectively destroy combustion conditions to inhibit or terminate combustion are called fire extinguishing agents. There are four general types of fire extinguishing agents.
Water fire extinguishing agent
It mainly relies on cooling and asphyxiation to extinguish fire. The following substances cannot be put out with water on fire: flammable liquids, such as gasoline, kerosene, which are less dense than water or insoluble in water; Substances that burn in water, such as potassium, sodium, calcium carbide, etc.; Electric fire, do not put out with water before the power is cut off; Strong acid, after adding water may make acid splash hurt; Precision instruments; Valuable documents.
Dry powder extinguishing agent
It mainly relies on chemical suppression and asphyxiation. Dry powder extinguishing agent is not suitable for precise instrument fire.
Foam extinguishing agent
It mainly relies on cooling and asphyxiation to extinguish fire. Not applicable to electrical, precision instruments, valuable documents of fire.
Carbon dioxide extinguishing agent
It mainly relies on asphyxiation and cooling to extinguish fire. Suitable for metal and oxide fire, as well as electrical, precision instruments, valuable documents of fire.
