Calibration Gas CGA Number 103L-132-CP Container Type Cylinder Cylinder Capacity 103 L Cylinder Diameter 3.25 in Cylinder Height 13.5 in For Use With C-10 Gas Mixture Methane 99.999 Percent Gas Type Methane Product Type Calibration Gas Chemical Formula CH4 CAS Number 74-82-8 Background Gas Air Nitrogen Cylinder Material Steel Outlet Connection Size 5/8 In.-18 Outlet Connection Type UNF Reusability Disposable Operating Pressure - Maximum 1 000 psi