Harmonized System

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Section VI > Chapter 28 > Heading 2832

Explanatory notes

… (“sodium bisulphite”, sodium acid sulphite) results from the action of sulphur dioxide on an aqueous solution of … (sodium metabisulphite, pyrosulphite, dry sulphite and, in some languages, incorrectly referred to as “sodium bisulphite crystals”). Obtained from the hydrogen sulphite; oxidises rather rapidly, …

Section XVI > Chapter 85 > Heading 8506

Explanatory notes

… together in batteries, either in series or in parallel or a combination of both. Cells and batteries remain classified … in which the electrolyte is a liquid, and is not restrained from flowing.  Wet cells are therefore sensitive to … can be used, or in which the electrolyte must be heated to become ionically conductive. (4)   Concentration cells , the …

Section XVI > Chapter 85 > Heading 8512

Explanatory notes

… on one of the tyres or wheel rims of a bicycle or, in some rare cases, of a motor‑cycle. (2)   Battery holders , … indication lights, reversing lamps and the like . (6)   Combinations of some of the above‑mentioned lamps, assembled … in one casing . (7)   Interior lighting lamps , such as dome lamps, wall lamps, step indicating lamps, door frame …

Section X > Chapter 48 > Heading 4820

Explanatory notes

… for copying in manuscript. Educational workbooks, sometimes called writing books, with or without narrative … their primary use as workbooks and usually with spaces for completion in manuscript are, however, excluded ( heading … workbooks consisting essentially of pictures, with complementary texts, for writing or other exercises are also …

Section XVIII > Chapter 92 > Heading 9208

Explanatory notes

… . These consist of small mechanical movements playing tunes automatically, incorporated into boxes or various other containers. The main component is a cylinder set with pins (according to the … the pins contact metal tongues arranged like the teeth of a comb, causing them to vibrate and produce the notes. The …

Section VI > Chapter 38 > Heading 3802

Explanatory notes

… causes a change in the structure of the basic substance, accompanied by an increase in the specific surface, and, in … in the lattice due to the insertion or substitution of atoms with different valencies. The valencies which thus … of alkaline substances during the calcining process sometimes encourages the formation of surface charges. The …

Section X > Chapter 48 > Heading 4812

Explanatory notes

… ‑ Filter blocks, slabs and plates, of paper pulp. These are composed of vegetable fibres (cotton, flax, wood, etc.) with a high cellulose content, compressed together in the form of blocks, slabs or plates … view of the purpose for which they are required, are freed from all impurities in order to avoid giving a colour, odour …

Section IX > Chapter 45 > Heading 4501

Explanatory notes

… . Raw cork is presented in curved slabs as stripped from the cork tree. Natural cork, simply prepared, includes … excluded ( heading 45.02 ). (2)   Waste of natural or agglomerated cork (i.e., shavings, waste pieces and scrap) … etc., of cork in the form of “cork wool”, which is sometimes used as a stuffing or filling material. (3)   …

Section XVI > Chapter 85 > Heading 8507

Explanatory notes

… for example : (i)   Positive electrodes of nickel or nickel compounds and negative electrodes of iron, cadmium or metal …

Section XIV > Chapter 71 > Heading 7106

Explanatory notes

… of coins or of goldsmiths’ or silversmiths’ wares; some are also used in the manufacture of electrical … or silversmiths’ wares. (3) Silver-copper-zinc alloys , sometimes also containing cadmium, tin or phosphorus, used … fall in heading 32.06 , 32.07 (liquid lustres and similar compounds for the ceramic or glass industries), 32.08 to …