Calibration Gas 552L 500 psi

Calibration Gas CGA Number CGA 590 Container Type Cylinder Cylinder Capacity 552 L Cylinder Diameter 4.5 in Cylinder Height 25 in For Use With All OEM Gas Detectors Gas Mixture Carbon Monoxide 50 ppm Methane (50 Percent LEL) 2.5 Percent Oxygen 12 Percent Gas Type Carbon Monoxide Methane Oxygen Product Type Calibration Gas Chemical Formula CH4 CO O2 CAS Number 630-08-0 74-82-8 7782-44-7 Accuracy +/-5 Percent Background Gas Nitrogen Calibration Certificate NIST