UN1075 PETROLEUM GASES,LIQUEFIED 2.1 10 PPM METHYL MERCAPTAN, 15 PPM ETHYL MERCAPTAN, 10 PPM DIMETHYL SULFIDE, 15 PPM CARBON DISULFIDE, 10 PPM TERT-BUTYL MERCAPTAN, 15 PPM N-PROPYL MERCAPTAN, 10 PPM METHYL ETHYL SULFIDE, 30 PPM THIOPHENE, 10 PPM ISO-BUTYL MERCAPTAN, 15 PPM DIETHYL SULFIDE, 10 PPM DIMETHYL DISULFIDE, 15 PPM 3-METHYL THIOPENE, 10 PPM T-BUTYL SULFIDE, 15 PPM DIETHYL DISULFIDE, 10 PPM 1-HEPTANETHIOL, 15 PPM PROPYL DISULFIDE, RESEARCH GRADE N-BUTANE BALANCE CERTIFIED, 1000 CC PISTON LIQUID PHASE CUSTOMER OWNED CYLINDER