Supply Of Set of Four Nos of Standard Calibration Gas Mixture for Dissolved Gas Analyzer with Regulator Nozzle Fine control 0.5 litres

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Supply Of set of four nos of standard calibration gas mixture for dissolved gas analyzer with regulator nozzle fine control 0.5 litres , set of four nos of standard calibration gas mixture for dissolved gas analyzer with regulato r nozzle fine control 0.5 litres w/c aluminium high pressure canister with fine control needle valve and ru bber septum and knob arrangement as spares to draw sample directly from canister using gc syringe.prep aration tolerance (plus or minus 20 %) and shelf life 12 months. filling pressure 20 kg/sq.cm.gas compositi on is as follows: item 1: hydrogen 5 ppm,, methane 5 ppm,, ethylene 5 ppm,, ethane 5 ppm, acetylene 5 p pm, carbon monoxide 50 ppm, carbon dioxide 50 ppm, nitrogen as balance.item 2: hydrogen 500 ppm, m ethane 500 ppm, ethylene 500 ppm, ethane 500 ppm, acetylene 500 ppm, carbon monoxide 5000 ppm & carbon dioxide 5000 ppm; nitrogen as balance. item 3: hydrogen 700 ppm, methane 700 ppm, ethylene 70 0 ppm, ethane 700 ppm, acetylene 700 ppm, carbon monoxide 7000 ppm & carbon dioxide 7000 ppm; nit ogen as balance item 4: hydrogen 100 ppm, methane 100 ppm,. ethylene 100 ppm, ethane 100 ppm, acet ylene 100 ppm, carbon monoxide 1000 ppm & carbon dioxide 1000 ppm; nitrogen as balance. ]