Calibration Gas, CGA Number Not Applicable, Container Type Cylinder, Cylinder Capacity 116 L, Cylinder Diameter 3.5 in, Cylinder Height 14.3 in, For Use With All OEM Gas Detectors, Gas Mixture Benzene 5 ppm, Gas Type Benzene, Product Type Calibration Gas, Chemical Formula C6H6, CAS Number 71-43-2, Accuracy +/-5 Percent, Background Gas Air, Calibration Certificate NIST, Cylinder Material Aluminum Alloy, Outlet Connection Size 5/8 In.-18, Outlet Connection Type UNF, Standards ISO 9001:2015