Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 28 Inorganic chemicals; organic or inorganic compounds of precious metals , of rare 28 32 Sulphites; thiosulphates. 28 32 10 28 32 10 00 Commodity Code Description 28 32 10 00 00 - Sodium sulphites 28 32 20 00 00 - Other sulphites 28 32 30 00 00 - Thiosulphates