Calibration Gas, CGA Number Not Applicable, Container Type Cylinder, Cylinder Capacity 105 L, Cylinder Diameter 3.2 in, Cylinder Height 12.8 in, For Use With All OEM Gas Detectors, Gas Mixture Refrigerant R-123 100 ppm, Gas Type Hexane, Product Type Calibration Gas, Chemical Formula C6H14, CAS Number 110-54-3, Accuracy +/-2 Percent, Background Gas Nitrogen, Calibration Certificate NIST, Cylinder Material Aluminum Alloy, Outlet Connection Size 5/8 In.-18, Outlet Connection Type UNF