Harmonized System

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Section XVIII > Chapter 90 > Heading 9020

Explanatory notes

… The heading includes breathing appliances of a kind used by, for example, airmen, divers, mountaineers or firemen. … a cylinder of oxygen or compressed air) or may be connected by a hose to compressors, compressed air supply pipes, … These enable the wearer to breathe in atmospheres polluted by dust, poisonous vapours, smoke, etc., and are therefore …

Section XV > Chapter 81 > Heading 8112

Explanatory notes

… extracted from the ores patronite or carnotite, usually by reduction of the oxide, or from residues of iron, radium … aluminium, etc. (E) GALLIUM Gallium is obtained as a by‑product in the extraction of aluminium, zinc, copper and … niobium‑potassium fluoride. The metal is then extracted by electrolysis or other methods. It is a silvery‑grey metal …

Section VI > Chapter 29 > Heading 2932

Explanatory notes

… (ISO) 2932.99 - - Other The heterocyclic compounds covered by this heading are : (A)  Compounds containing an unfused … liquid. (2)   2-Furaldehyde (furfural)* . Prepared by distilling cereal bran with sulphuric acid. Colourless … of carboxylic acids with alcohol or phenol function, formed by elimination of water. The molecules may contain one or …

Section XVIII > Chapter 90 > Heading 9001

Explanatory notes

… may be rigid, in which case the fibres are agglomerated by a binder along their full length, or they may be … of “active” plastics is supported on one or both sides by other plastics or by glass. This sheet or plate material is cut to shape to …

Section VI > Chapter 28 > Heading 2842

Explanatory notes

… red under the action of air and light, and decomposed by heat. Used in electroplating; in photography; in dyeing … Examples are : (1)     Sodium arsenite (NaAsO 2 ). Prepared by the fusion of sodium carbonate with arsenious oxide. … . Mono‑ and dibasic potassium orthoarsenates, prepared by the same method as sodium arsenates. Colourless crystals, …

Section IV > Chapter 17 > Heading 1701

Explanatory notes

… cane stalk. Beet sugar is derived from the juices obtained by extraction from the root of the sugar beet. Raw or crude … due to the presence of impurities. Their sucrose content by weight, in the dry state, corresponds to a polarimeter … without refining. Refined cane or beet sugars are produced by the further processing of raw sugar. They are generally …

Section XII > Chapter 65 > Heading 6501

Explanatory notes

… the fur is applied evenly to a cone-shaped former by suction and, in the case of wool, by entwining the carded fibres on a double cone. (This … .)         Classification in this heading is not affected by processes such as pouncing, dyeing or stiffening.         …

Section XV > Chapter 81 > Heading 8101

Explanatory notes

… Unwrought tungsten, including bars and rods obtained simply by sintering 8101.96 - - Wire 8101.97 - - Waste and scrap … ores are converted into the oxide, which is then reduced by hydrogen in an electric furnace or by aluminium or carbon in a high temperature crucible. The …

Section XV > Chapter 72 > Heading 7211

Explanatory notes

… than cold-rolled (cold-reduced) : 7211.23 - - Containing by weight less than 0.25 % of carbon 7211.29 - - Other … and hoop and strip. Hoop and strip are usually produced by hot re‑rolling the semi‑finished products of … or rounded at the edges), provided that they do not thereby assume the character of articles or of products of …

Section VI > Chapter 28 > Heading 2829

Explanatory notes

… (heading 28.11). (1)   Sodium chlorate (NaClO 3 ). Obtained by electrolysing an aqueous solution of sodium chloride. … cheddite). (3)   Barium chlorate (Ba(ClO 3 ) 2 ). Obtained by electrolysing a solution of barium chloride; colourless … crystals, soluble in water especially when hot; decomposed by heat, sometimes explosively. (2)   Sodium perchlorate …

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