... used in fire protection and fire extinguishing in oilfields, refineries,etc. Various portable and fixed dry powder fire extinguishers ... fires involving flammable solids,flammable fluids, combustible gases and electric equipment. This agent can be used in ... ,chemical storerooms, ships, airports, mines, factories, restaurants, and hotels, as well as in forested areas.ItemTechinical NormApparent Density ...