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 11 OTHER INORGANIC ACIDS AND OTHER INORGANIC OXYGEN COMPOUNDS OF NON-METALS. 28 11 29 NITROUS OXIDE Commodity Code Description 28 11 29 10 NITROUS OXIDE 28 11 29 90 OTHER INORGANIC OXYGEN COMPOUNDS OF NON-METALS