UN1954 COMPRESSED GAS, N.O.S. (HYDROGEN, ETHANE) 2.1 0.30% CARBON DIOXIDE, 0.50% CARBON MONOXIDE, 0.50% ETHYLENE, 5.00% ETHANE, 0.50% ARGON, 5.00% METHANE, 0.50% NITROGEN, 1.00% PROPANE, 0.50% PROPYLENE, 0.50% ISOBUTANE, 0.50% NORMAL BUTANE, 0.50% 1-BUTENE, 0.50% TRANS-2-BUTENE, 0.30% CIS-2-BUTENE, 0.30% ISOPENTANE, 0.30% NORMAL PENTANE, 0.30% ISOBUTYLENE, 0.10% 3-METHYL-1-BUTENE, 0.10% TRANS-2-PENTENE, 0.10% 2-METHYL-2-BUTENE, 0.10% CIS-2-PENTENE, 0.10% NORMAL HEXANE, 0.10% NORMAL HEPTANE, 0.10% BENZENE, 0.10% ISO-OCTANE, 1.00% 1,3 BUTADIENE, 0.10% 1-PENTENE, 0.10% 2-METHYL-1-BUTENE, HYDROGEN BALANCE PRIMARY, SIZE 33AL