UN1075 PETROLEUM GAS, LIQUEFIED (ISOBUTANE, N-BUTANE) 2.1 0.100% METHANE, 0.050% CARBON DIOXIDE, 0.100% ETHANE, 0.200% PROPANE, 0.600% N-BUTANE, 0.100% ISOPENTANE, 0.100% N-PENTANE, 0.050% HEXANES+, 0.050% NEO-PENTANE, 98.650% ISOBUTANE CERTIFIED, 1000CC PISTON CYL, CUSTOMER OWNED, LIQUID PHASE