UN1075 PETROLEUM GAS, LIQUEFIED (1,3 BUTADIENE, BUTANE) 2.1 0.5% 1,2-BUTADIENE, 7% 1-BUTENE, 0.2% 3-METHYL-1-BUTENE, 10% BUTANE, 2% CIS-2-BUTENE, 0.2% CYCLOPROPANE, 0.2% ETHYLACETYLENE, 0.1% ISOBUTANE, 0.5% ISOBUTYLENE, 0.5% METHYLACETYLENE, 200 PPM N-PENTANE, 0.2% PROPADIENE, 0.1% PROPANE, 0.1% PROPYLENE, 3% TRANS-2-BUTENE, 0.1% TRANS-2-PENTENE, 1% VINYL ACETYLENE, 74.28% 1,3 BUTADIENE CERTIFIED, 1000CC PISTON CYL CUSTOMER OWNED, LIQUID PHASE