UN1954 COMPRESSED GAS,FLAMMABLE, N.O.S. (PROPYLENE, PROPANE) 2.1 5 PPM 1,3 BUTADIENE, 100 PPM N-BUTANE, 20 PPM 1-BUTENE, 20 PPM CIS-2-BUTENE, 100 PPM ISOBUTANE, 20 PPM ISOBUTYLENE, 6% PROPANE, 20 PPM TRANS-2-BUTENE, 600 PPM CYCLOPROPANE, 30 PPM C5+, PROPYLENE BALANCE CERTIFIED, SIZE 150AL