Item Description: calibration gas mixture in 0. 5 litre w/ c aluminium canister along with fine c ontrol needle valve: methane = 100ppm, ethane = 1000ppm, ethylene = 1000ppm, acetylene = 1000ppm, hydrogen = 1000ppm, carbon dioxide = 5000ppm, carbon monoxide = 5000ppm, nit rogen balance filling pressure- 20kg/ sq. cm make- chemtron/ upg/ span can/ ags note: 1 ) the gas canister no. should be punched clearly on the cylinder and should contain pressure gauge on the caniste r to show internal pressure of the canister., ( 2 ) calibration certificate should be given by any govt. accredited labo ratory and canister no. should be mentioned on the calibration certificate. [ warranty period: 30 months after the date of delivery ]

Kolkata, West Bengal, India