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 Sulphuric acid, for chemical analysis Commodity Code Description 28 07 00 10 Sulphuric acid, for chemical analysis 28 07 00 20 Other sulphuric acid 28 07 00 30 Oleum