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 29 Chlorates, perchlorates; bromates, perbromates; iodates and periodates 28 29 90 Perchlorates; bromates and perbromates; iodates and periodates 28 29 90 00 Perchlorates; bromates and perbromates; iodates and periodates Commodity Code Description 28 29 90 00 00 Perchlorates; bromates and perbromates; iodates and periodates