- Extinguish ordinary combustibles by cooling the material below its
ignition temperature and soaking the fibers to prevent re-ignition.
Use pressurized water, foam or multipurpose
(ABC-rated) dry chemical extinguishers.
DO NOT USE carbon dioxide or ordinary (BC-rated) dry chemical extinguishers on Class A fires.
Class B -
Extinguish flammable liquids, greases or gases by removing
preventing the vapors from reaching the ignition source or inhibiting
the chemical chain reaction.
Foam, carbon dioxide, ordinary
multipurpose dry chemical, and halon extinguishers may be used to fight Class B
- Extinguish energized electrical equipment by
using an extinguishing agent
that is not capable of conducting electrical currents.
Carbon dioxide, ordinary (BC-rated)
dry chemical, multipurpose dry chemical and halon fire extinguishers
may be used to fight Class C fires.