IS:14609:1999 Dry chemical powder is very important Fire-Fighting agent and it's extinguishing medium for Class A, B & C fires.
It is mix of mono ammonium phosphate and ammonium Sulfate, the mix between two agents is usually 50-50% and 90-10% or depending upon required specification.
Dry Chemical Powder confirms to IS: 14609 Specification. Approval: Bureau of Indian Standards, Govt. of India.