Harmonized System

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Section V > Chapter 27 > Heading 2714

Explanatory notes

… and whether or not pulverised or mixed together.The mere addition of water to natural bitumen does not change the … extracted. Gas and other products may also be obtained. The separation is achieved by heating or other extraction processes (e.g., by distillation, retorting or …

Section XI > Chapter 56 > Heading 5605

Explanatory notes

… a process of twisting, cabling or by gimping, whatever the proportion of the metal present. The gimped yarns are … round the textile core which does not twist with the metal. Precious metals or plated metals are frequently used. (2)   … . This category includes yarn covered with metal by electro‑deposition, or by giving it a coating of adhesive (e.g., …

Section XI > Chapter 63 > Heading 6310

Explanatory notes

… and scrap, however, is excluded from this heading. This exclusion applies particularly to tangled yarn obtained … those obtained from the padding of old mattresses, cushions, bedspreads, etc.); garnetted stock.  These … in weaving, dyeing, etc., but which do not fulfil the conditions mentioned above. These fabrics are classified in …

Section VII > Chapter 39 > Heading 3911

Explanatory notes

… polymerised, made by polymerising more or less impure fractions obtained, respectively, from deeply cracked … is bound on both sides by carbon atoms, as opposed to the thioplasts of Chapter 40, which contain sulphur‑sulphur … on hexamethylene diisocyanate (HDI) , synthesised by the reaction of HDI with water to produce prepolymers with an …

Section VIII > Chapter 41 > Heading 4101

Explanatory notes

… salted by means of brine. In the dry salting process, small proportions of other substances are sometimes added to … is sometimes added. Hides may be dried directly or as an additional treatment after salting. During drying, the hides … and skins. Hides and skins are pickled by steeping in weak solutions of hydrochloric or sulphuric acid, or of certain …

Section XVIII > Chapter 90 > Heading 9004

Explanatory notes

… generally intended either to correct certain defects of vision or to protect the eyes against dust, smoke, gas, … it also covers spectacles for viewing stereoscopic (three‑dimensional) pictures. Spectacles, pince‑nez, lorgnettes, … and used either as protective filters or, in some cases, as additional corrective lenses; polarising spectacles fitted …

Section VI > Chapter 31 > Heading 3101

Explanatory notes

… to remove large objects and settling out grit and heavy non-biological constituents; the remaining sludge is then … The stabilised sludge so obtained contains a high proportion of organic matter and also contains some …

Section VI > Chapter 31 > Heading 3103

Explanatory notes

… phosphates). Single superphosphate is obtained by the action of sulphuric acid on natural phosphates or powdered … bone. Double and triple superphosphates are obtained by the action of phosphoric acid on these materials. (2) Basic slag …

Section XV > Chapter 82 > Heading 8211

Explanatory notes

… knives with cutting blades, serrated or not, with the exception of those included in heading 82.08 , and of … knives of heading 82.01 , and other articles listed in the exclusions at the end of this Explanatory Note). The heading … metal for the knives of this heading are also included. In addition to the exclusions mentioned in the first paragraph …

Section XII > Chapter 65 > Heading 6502

Explanatory notes

… or strips of wood). These materials may be plaited by various methods including “plaiting” by arranging one set of … them with other fibres or strips wound spirally. Additional radial fibres or strips are introduced in the … the crown, in such a manner that each spiral overlaps the previous one, or by arranging plaits spirally so that the …