Calibration Gas Mixture In 0.5 Litre Water Capacity Aluminium Canister Alon G With Fine Control Needle Valve And Regulator With Gauge. The Composition Of Calibra Tion Gas Is Methane - 1000 Ppm, Ethane - 1000 Ppm, Ethylene - 1000 Ppm, Acetylene - 1000 Pp M, Hydrogen - 1000 Ppm Along With Carbon Dioxide And Carbon Monoxide - 5000 Ppm Each And Nitrogen Balance Filling Pressure : 20 Kg/Cm2 Of Spantech Or Equivalent. Note - Mat Erial To Be Supplied In Phase Wise Manner I.E. 01 No. Qty In Every 4 Months After Placemen T Of Po. (Material To Be Procured From Oem Or Its Authorized Dealer And May Please Sub Mit Proof Of Purchase.) [ Warranty Period: 30 Months After The Date Of Delivery ] ]