Supply Of Calibration gas mixture (with gas concentration and quantity certificate) in 0.5 litre W/C Aluminum canister

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Supply Of calibration gas mixture (with gas concentration and quantity certificate) in 0.5 litre w/c aluminum canister , calibration gas mixture (with gas concentration and quantity certificate) in 0.5 litre w/c alum inum canister filling pressure 20kg/cm2 with septum arrangement to withdraw sample along with fine contr ol needle valve and pressure gauge: std gas methane- 1000 ppm, ethane- 1000 ppm, ethylene- 1000 ppm, acetylene- 1000 ppm, hydrogen- 1000 ppm, carbon dioxide- 5000 ppm, carbon monoxide- 5000 ppm and n itrogen balance. make : spantech/ chemtron/upg/ags or equivalent. [ warranty period: 30 months after the date of delivery ] ]