UN1954 COMPRESSED GAS,FLAMMABLE, N.O.S. (HYDROGEN, METHANE ) 2.1 0.540% HEXANE PLUS (C6+), 1.377% PROPANE, 0.161% ISOBUTANE, 0.244% N-BUTANE, 0.115% ISOPENTANE, 0.052% N-PENTANE, 3.738% NITROGEN, 13.973% METHANE, 0.133% CARBON DIOXIDE, 3.669% ETHANE, 75.999% HYDROGEN CERTIFIED, SIZE 150AL