supply of dga calibration gas mixture (standard gas) in canister with nozzle, fine control gas composition/gas quality certificate for dga calibration mixture capacity 500ml. approx pressure 20kg/cm2 in canister & stability 12 months. canister containing ch4,c2h6,c2h4,c2h2,h2 gas 1000ppm & co and co2 gas 5000ppm each, balance n2 gas. make: spantech, upg, phoenix or equivalent, canister required with regulator. gas composition test certificate from any approved firm to be provided along with material.dga calibration gas mixture (standard gas) in canister with nozzle, fine control gas composition/gas quality certificate for dga calibration mixture capacity 500ml. approx pressure 20kg/cm2 in canister & stability 12 months. canister containing ch4,c2h6,c2h4,c2h2,h2 gas 1000ppm & co and co2 gas 5000ppm each, balance n2 gas. make: spantech, upg, phoenix or equivalent, canister required with regulator. gas composition test certificate from any approved firm to be provided along with material.,dga calibration gas mixture (standard gas) in canister with nozzle, fine control gas compositi on/gas quality certificate for dga calibration mixture capacity 500ml. approx pressure 20kg/cm2 in canister & stability 12 months. canister containing ch4,c2h6,c2h4,c2h2,h2 gas 1000ppm & co and co2 gas 5000p pm each, balance n2 gas. make: spantech, upg, phoenix or equivalent, canister required with regulator. g as composition test certificate from any approved firm to be provided along with material. [ warranty period: 30 months after the date of delivery ] ]