Calibration Gas, CGA Number Not Applicable, Container Type Cylinder, Cylinder Capacity 103 L, Cylinder Diameter 3.3 in, Cylinder Height 13.6 in, For Use With All OEM Gas Detectors, Gas Mixture Carbon Dioxide 2.5 Percent, Carbon Monoxide 50 ppm, Methane (50 Percent LEL) 2.5 Percent, Oxygen 12 Percent, Gas Type Carbon Dioxide, Carbon Monoxide, Methane, Oxygen, Product Type Calibration Gas, Chemical Formula CH4, CO, CO2, O2, CAS Number 124-38-9, 630-08-0, 74-82-8, 7782-44-7, Accuracy +/-5 Percent