It is a dry Chemical extinguishing agent used on Class A,B and C Fires.
There are two types of Dry chemical Powders i.e. ABC type and BC type.
ABC is MAP based dry Chemical powder used on all types of fires i.e. Class A,B and C. BC is Sodium Bi Carbonate and Potassium Bi Carbonate base Dry Chemical Powder used on Class B and C fires.