Fire Extinguisher

Fire extinguishers are located throughout BU and BMC and are available for use by trained employees, if safe to do so.

  • A fire extinguisher has a limited capability.
  • A fire extinguisher is effective on small incipient stage fires.

The fire procedure A.C.E.S. for the CRC or R.A.C.E. for the Medical campus must be initiated prior to an attempt at extinguishment.

Below you will find brief descriptions of the different classes of fire extinguishers and the types of fires they are capable of extinguishing.


Class A: Pressurized water based extinguisher.

Use: Ordinary combustibles such as woods, papers, and plastics.


Class BC: Carbon Dioxide extinguisher.

Use: Flammable liquids (i.e. ethanol, xylene) and electrical fires.


Class ABC: Multipurpose dry chemical agent extinguisher.

Use: Ordinary combustibles, flammable liquids, and electrical fires.


Class D: Sodium chloride or copper based dry powder.

Use: Combustible metals (i.e. magnesium, powdered aluminum).


Class K: Potassium bicarbonate or wet chemical fine mist,
Use: Kitchen fires, cooking oils and fats.