Calibration gas, Methane, Nitrogen, 17 L, CGA 600 Connection, +/-5% Accuracy, 240 psi Max. Pressure
75 in, For Use With All OEM Gas Detectors, Gas Mixture Methane 10 ppm, Gas Type Methane, Product Type Calibration Gas, Chemical Formula CH4, CAS Number 74-82-8, 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.