Calibration gas, Carbon Monoxide, Methane, Nitrogen, Oxygen, 221 L, CGA 165 Connection
25 in, For Use With All OEM Gas Detectors, Gas Mixture Carbon Monoxide 100 ppm, Methane (50 Percent LEL) 2.5 Percent, Gas Type Carbon Monoxide, Methane, Nitrogen, Oxygen, Product Type Calibration Gas, Chemical Formula CH4, CO, N2, O2, CAS Number 630-08-0, 74-82-8, 7727-37-9, 7782-44-7, Accuracy +/-5 Percent, Background Gas Air, Calibration Certificate NIST.Calibration Gas, CGA Number CGA 165, Container Type Cylinder, Cylinder Capacity 221 L, Cylinder Diameter 9 in, Cylinder Height 16.