U S E F U L I N F O R M A T I O N

FIRE EXTINGUISHERS

ABC DRY CHEMICAL

• Multipurpose extinguishing agent that works best on Class A, ,B, and C fires.

STANDARD DRY CHEMICAL

• Extinguishing agent based on sodium bicarbonate that works best on Class B, and C fires

PURPLE K DRY CHEMICAL

• Extinguishing agent that works best dealing with flammable liquid fires, and Class B and C fires.

TYPES OF FIRES

Each class denotes the type of fire, in relation the combustion materials that have or can be ignited.

1. CLASS A FIRE

• Fire based on combustible materials, such as wood, paper, fabric, and refuse.

• Most suppression techniques are suitable for taking care of a Class A fire

2. CLASS B FIRE

• Fire based on Flammable liquids and gases

• Suitable suppression technique involves inhibiting the chemical reaction, such as using Dry Chemical or Halon

3. CLASS C FIRE

• Electrical Fires

• Suppression techniques are similar to ordinary combustibles, but conductive agents like water cannot be used

4. CLASS D FIRE

• Fire based on flammable metals

• Dangerous due to how hot they burn, and emit toxic vapors

• Each Class D fire requires specific fire suppression response based on the metal burning

5. CLASS K FIRE

• Most kitchen fires are Class K fires as they are fires involving cooking oils and fats

• Suppression by removing oxygen or water mist

• A special class K extinguisher will safely smother the fire by turning the oil in to a foam