UN1075 PETROLEUM GASES,LIQUEFIED 2.1 10 PPM BUTYL MERCAPTAN, 10 PPM CARBON DISULFIDE, 10 PPM CARBONYL SULFIDE, 10 PPM DIMETHYL DISULFIDE, 10 PPM DIMETHYL SULFIDE, 10 PPM ETHYL MERCAPTAN, 10 PPM HYDROGEN SULFIDE, 10 PPM ISOBUTYL MERCAPTAN, 10 PPM ISOPROPYL MERCAPTAN, 10 PPM METHYL MERCAPTAN, 10 PPM N-PROPYL MERCAPTAN, 10 PPM TERT-BUTYL MERCAPTAN, 10 PPM THIOPHENE, RESEARCH GRADE N-BUTANE BALANCE CERTIFIED, 1000CC PISTON LIQUID PHASE CUSTOMER OWNED CYLINDER