UN1075 PETROLEUM GASES,LIQUEFIED 2.1 0.50% NITROGEN, 1.5% METHANE, 2.0% CARBON DIOXIDE, 28% PROPANE, 4.0% ISOBUTANE, 9.50% N-BUTANE, 3.0% ISOPENTANE, 3.5% N-PENTANE, 6.0% HEXANES C6+ EXTENDED, 42% ETHANE CERTIFIED, 1000CC PISTON CYL CUSTOMER OWNED CYLINDER