Calibration Gas, CGA Number CGA 600, Container Type Cylinder, Cylinder Capacity 17 L, Cylinder Diameter 2.9 in, Cylinder Height 10.75 in, For Use With All OEM Gas Detectors, Gas Mixture Oxygen 500 ppm, Gas Type Oxygen, Product Type Calibration Gas, Chemical Formula O2, CAS Number 7782-44-7, Accuracy +/-5 Percent, Background Gas Nitrogen, Calibration Certificate NIST, Cylinder Material Steel, Outlet Connection Size 3/4 in, Outlet Connection Type NGT, Standards ISO 9001:2015