Drying control chemical agent

Combination extinguishing systems-Combining dry chemicals and foam agents unites the fast flame control of the dry chemical with the cooling and sealing ability of foam to provide an efficient portable extinguishing system. 

Fire To control small fires use dry chemical, sand, soda ash or lime or fight fire around the biological agent or weapon with normal fire extinguishing materials, but do not spread or scatter infectious substance. If without risk, move any containers containing anthrax or any other infectious substance from the area of the fire. 

An appropriate number, type, and size of hand-held fire extinguishers should be provided throughout the building to handle ordinary combustibles and electrical fires in the control room and related areas. Typically, clean agent or carbon dioxide fire extinguishers should be provided for electrical and electronic equipment. Dry chemical extinguishers should be avoided because of equipment contamination with powder. For use on ordinary combustible fires in the associated areas water or multipurpose dry chemical fire extinguishers should be provided. 

Dispersed Powders. The principal use of dispersed powders is in pad—dry—chemical pad—steam dyeing techniques. They are normally made from press cake by ball or bead milling to microparticle size in the presence of dispersing agents. The drying is stricdy controlled and is carried out in the presence of anticoagulants to prevent aggregation of the dispersed dye particles. 

Fire extinguishment is the application of agents to control fire spread and ultimately to put a fire out. By far water is the most common agent. For some applications, water additives enhance the capabilities of water. Other agents are carbon dioxide, halogens, dry chemicals, foams, and other special purpose agents. 

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