supply of dga calibration gas mixturedga calibration gas mixture,dga calibration gas mixture (standard gas) in 500ml cylinder aluminium can contain 10 liter s of available gas with following compositions. 1) 1000 ppm - methane, 2)1000 ppm-ethane, 3) 1000 ppm -et hylene, 4) 1000 ppm-acetylene, 5) 1000 ppm-hydrogen, 6) 5000 ppm-carbon dioxide, 7) 5000 ppm -carbon monoxide,8) balance - nitrogen. note: 1) firm shall supply in cans of each capacity 500 ml with septum typ e needle valve for drawing the gas. 2) gas composition and gas quantity certificate must be provided along with the supply of material. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]