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 Hexane (25 Percent LEL) 0.275 Percent, Gas Type Hexane, Product Type Calibration Gas, Chemical Formula C6H14, CAS Number 110-54-3, Accuracy +/-5 Percent, Background Gas Air, Calibration Certificate NIST, Cylinder Material Aluminum Alloy, Outlet Connection Size 5/8 in, Outlet Connection Type UNF