UN1954 COMPRESSED GAS,FLAMMABLE, N.O.S. (METHANE, ETHANE) 2.1 5% ETHANE, 2% PROPANE, 0.5% N-BUTANE, 0.5% ISOBUTANE, 0.3% N-PENTANE, 0.3% ISOPENTANE, 0.05% N-HEXANE, 1% NITROGEN, 2% CARBON DIOXIDE, 0.002% HYDROGEN SULFIDE, METHANE BALANCE PRIMARY STANDARD, SIZE LP5AL CUSTOMER OWNED