East Central Railway

East Central Railway has published Supply Of dga calibration gas mixture (standard gas) in 500ml cylinder aluminium can contain 10 litres of available gas at pressure 20 kg/cm2 , dga calibration gas mixture (standard gas) in 500ml cylinder aluminium can contain 10 litre s of available gas at pressure 20 kg/cm2 with following compositions 1)methane - 1000 ppm , 2)ethane-100 0 ppm 3) ethylene-1000 ppm 4) acetylene-1000 ppm 5)hydrogen- 1000 ppm 6) carbon dioxide-5000 ppm 7) carbonmonoxide-5000 ppm 8) balance-nitrogen note:- 1) firm shall supply in cans of each capacity 500 ml with septum type needle valve for drawing the gas. 2) gas composition and gas quantity certificate must b e provided & its traceability to: npl delhi , preparation tolerance +/-10%, certificate accuracy +/-2%, stabi lity 12 months minimum along with the supply of material. make - kshama, spantech or similar. [ warran ty period: 30 months after the date of delivery ] ]. Last date of submission for this tender is 2026-09-16. This is a Railway Ancillaries tender in null, Uttar Pradesh