Section 06 Products of the chemical or allied 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare earth metals, of radioactive elements or isotopes 28 07 Sulphuric acid; oleum 28 07 00 - - - Oleum 28 07 00 30 - - - Oleum Commodity Code Description 28 07 00 30 000 - - - Oleum