This B, C Gas Stored Pressure fire extinguisher is perfect for Class B fires involving petrol, alcohol, industrial chemicals and many other substances. Capacity (Kg) : 2, 4, 6, 9, 25, 50 & 75 Kgs. Confirming IS Code : IS 15683: 2006. Extinguishing Media : Dry Chemical Powder IS 4308. Minimum Effective Discharge : 85 % Discharge Time : Not Less than 13 sec. Test Pressure (Kgf/cm ') : 35 Kgf/cm2 Charged Pressure (Kgf/cm) : 15 Kgf/cm2 Temperature Range : (-) 20°C to (+) 55°C Effective against : B & C fires