Calibration Gas, CGA Number Not Applicable, Container Type Cylinder, Cylinder Capacity 58 L, Cylinder Diameter 3.53 in, Cylinder Height 14.25 in, For Use With All OEM Gas Detectors, Gas Mixture Carbon Dioxide 1,000 ppm, Carbon Monoxide 10 ppm, Methane 10 ppm, Gas Type Carbon Dioxide, Carbon Monoxide, Methane Air, Product Type Calibration Gas, Chemical Formula CH4, CO, CO2, CAS Number 124-38-9, 630-08-0, 74-82-8, Accuracy +/-5 Percent, Background Gas Air, Calibration Certificate NIST