Set Of Four Nos Of Standard Calibration Gas Mixture For Dissolved Gas Analyzer With Regulator N Ozzle Fine Control 0.5 Litres W/C Aluminium High Pressure Canister With Fine Control Needle Valve And Rubber S Eptum And Knob Arrangement As Spares To Draw Sample Directly From Canister Using Gc Syringe.Preparation To Lerance (Plus Or Minus 20 %) And Shelf Life 12 Months. Filling Pressure 20 Kg/Sq.Cm.Gas Composition Is As Follo Ws: Item 1: Hydrogen 5 Ppm,, Methane 5 Ppm,, Ethylene 5 Ppm,, Ethane 5 Ppm, Acetylene 5 Ppm, Carbon Mon Oxide 50 Ppm, Carbon Dioxide 50 Ppm, Nitrogen As Balance.Item 2: Hydrogen 500 Ppm, Methane 500 Ppm, Eth Ylene 500 Ppm, Ethane 500 Ppm, Acetylene 500 Ppm, Carbon Monoxide 5000 Ppm & Carbon Dioxide 5000 Pp M; Nitrogen As Balance. Item 3: Hydrogen 700 Ppm, Methane 700 Ppm, Ethylene 700 Ppm, Ethane 700 Ppm, A Cetylene 700 Ppm, Carbon Monoxide 7000 Ppm & Carbon Dioxide 7000 Ppm; Nitrogen As Balance Item 4: Hydr Ogen 100 Ppm, Methane 100 Ppm,. Ethylene 100 Ppm, Ethane 100 Ppm, Acetylene 100 Ppm, Carbon Monoxide 1000 Ppm & Carbon Dioxide 1000 Ppm; Nitrogen As Balance. ]