UN1956 COMPRESSED GAS, N.O.S. (ARGON, NITROGEN) 2.2 125 PPM ACETYLENE, 125 PPM CARBON DIOXIDE, 250 PPM CARBON MONOXIDE, 85 PPM ETHANE, 100 PPM ETHYLENE, 250 PPM HYDROGEN, 200 PPM METHANE, 40,000 PPM NITROGEN, 3,000 PPM OXYGEN, 100 PPM PROPANE, 100 PPM PROPYLENE, ARGON BALANCE PRIMARY, SIZE 150AL CUSTOMER OWNED CYLINDER