o2 is a colorless gas with a density about 60% higher than that of dry air. Considered as best extinguishing gas. It suppress oxygen by eliminating heat, co2 is most effective as a fire extinguishing agent NFPA-12 rules and BIS 6382 codes for design of such system are used as standard for co2 extinguishing or flooding system. Co2 gas generally stored in high pressure seamless steel cylinders is in liquid form with maximum filling ratio of 0.667 k ... Continue