supply of standard calibration gas mixture aluminium can for the calibration of dga machinestandard calibration gas mixture aluminium can for the calibration of dga machine,standard calibration gas mixture aluminium can for the calibration of dga machine (capacity 10 litres) with nozzle and screw control valve on t o the outlet valve on the top of the can. aluminum can have the following composition. (1) methane - 1000 ppm, (2) ethane -1000 ppm, (3) ethylene - 1000 pp m, (4) acetylene - 1000 ppm, (5) hydrogen - 1000 ppm, (6) carbon dioxide - 5000ppm, (7) carbon monoxide - 5000 ppm with calibration certificate. [ warrant y period: 30 months after the date of delivery ] ]