UN1075 PETROLEUM GASES,LIQUEFIED 2.1 0.050% ETHYLENE, 0.040% PROPYLENE, 0.020% CYCLOPROPANE, 0.030% PROPADIENE, 0.050% METHYL ACETYLENE, 0.030% ISOBUTYLENE, 0.037% 1-BUTENE, 0.020% 1,3-BUTADIENE, 0.030% TRANS-2-BUTENE, 0.040% ACETYLENE, 0.035% CIS-2-BUTENE, 0.045% NEOPENTANE, 0.075% 1-PENTENE, 99.498% PROPANE CERTIFIED, 1000CC PISTON CYL CUSTOMER OWNED, LIQUID PHASE