Standard Calibration Gas Mixture For Dissolved Gas Analyzer With Regulator Nozzle Fine Contr Ol 0.5 Litres W/C Aluminium High Pressure Canister With Fine Control Needle Valve And Septum As Spares To Draw Sample Directly From Canister Using Gc Syringe. Preparation Tolerance (Plus Or Minus 05-20 %) And Sh Elf Life 12 Months. Filling Pressure 20 Kg/Sq.Cm. Gas Composition Is As Follows: Hydrogen 1000 Ppm, Methan E 1000 Ppm,. Ethylene 1000 Ppm, Ethane 1000 Ppm, Acetylene 1000 Ppm, Carbon Monoxide 5000 Ppm & Carbon Dioxide 5000 Ppm; Nitrogen As Balance . Complete With Takeup Valve, Pressure Regulator, Septum. [ Warranty Period: 12 Months After The Date Of Delivery ] ]