Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 28 INORGANIC CHEMICALS; ORGANIC OR INORGANIC COMPOUNDS OF PRECIOUS METAL, OFRARE-EARTH METALS, OF RADIOACTIVE ELEMENTS OR OF ISOTOPES 28 32 SULPHITES; THIOSULPHATES. Commodity Code Description 28 32 10 SODIUM SULPHITES 28 32 20 OTHER SULPHITES 28 32 30 THIOSULPHATES