Set Of Standard Calibration Gas Canister For Dga Consisting Of (1) Methane ,Ethane,Ethylene, Acetylene, Hydrogen, Co And Co2 Each 100 Ppm And Nitrogen Balance-0 1 No (2)Methane,Ethane,Ethylene, Acetylene, Hydrogen, Co And Co2 Each 500Ppm Balance Nitrogen - 01No (3)Methane,Ethane,Ethylene, Acetylene, Hydrogen, Each 1000Ppm, Co And Co2 Each 5000 Ppm And Nitrogen Balance -01No. With Pressure Gauge,Septa And Knob Arr Angement To Draw Sample Directly From Canister Using Gc Syringe, Preparationtoleran Ce+/- 20% And Self Life 12 Months. Canister Capacity 0.5 Litres, Filling Pressure 20 Kg/Sq. Cm With Test Certificate And Suitable Septum As Spares. [ Warranty Period: 12 Months After The Date Of Delivery ] ]