Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 38 Miscellaneous chemical products 38 24 Prepared binders for foundry moulds or cores; chemical products and preparations 38 24 87 Containing perfluorooctane sulphonic acid, its salts, perfluorooctane sulphonamides, Commodity Code Description 38 24 87 00 Containing perfluorooctane sulphonic acid, its salts, perfluorooctane sulphonamides,