Operation and Maintenance of Fire-Fighting Equipments/Services ((i) Water type Gas Cartridge (Capacity 9 Ltr.) IS 940 (ii) CO2Type(Capacity 9 Kg.) IS : 2878 (iii) CO2Type(Capacity 6.8 Kg.) IS : 2878 (iv) CO2 Type (Capacity 4.5 Kg.) IS : 2878 (v) CO