Calibration Gas Gas Name Ammonia Gas Mixture 25 ppm NH3 Background Gas Nitrogen Cylinder Capacity 58 L Cylinder Material Aluminum For Use With Calibration and Maintenance of Industrial Scientific Gas Monitors Connection Size 5/8 in-18 UNF threaded collar Max Pressure 500 psi Cylinder Dia 3 1/2 in Cylinder Height 14 1/4 in Accuracy +/-5 Percent Calibration Certificate NIST
