Harmonized System

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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 … in an electric furnace or by aluminium or carbon in a high temperature crucible. The powdered metal so obtained is compressed into blocks or bars which are sintered in an …

Section XI > Chapter 59 > Heading 5906

Explanatory notes

… ‑ ‑ Other This heading covers : (A)  Textile fabrics impregnated, coated, covered or laminated with rubber, … special radiation protection garments, pneumatic articles, camping equipment, sanitary goods, etc. Certain upholstery … with rubber, of heading 56.04. (C)  Weftless fabrics composed of parallel textile yarns agglomerated by gumming …

Section VI > Chapter 28 > Heading 2828

Explanatory notes

… calcium hypochlorite. (A) HYPOCHLORITES These are the most important; they are mainly used for bleaching (“bleaching … yellowish, smelling of chlorine. They generally contain as impurities a small quantity of sodium chloride. Used for … “eau de Javel”; it is similar in all respects to the sodium compound. (3)   Other hypochlorites . These include …

Section VI > Chapter 28 > Heading 2809

Explanatory notes

… phosphate. The commercial acid thus prepared contains as impurities diphosphorus pentaoxide, calcium …

Section XVI > Chapter 85 > Heading 8533

Explanatory notes

… than heating resistors. 8533.10 ‑ Fixed carbon resistors, composition or film types               ‑ Other fixed … oxide film. They may be obtained in the form of individual components by a printing process. Certain resistors may be …  : (1) Oil immersed resistors . (2) Carbon resistance lamps , in the form of an electric light bulb but with a …

Section XX > Chapter 95 > Heading 9508

Explanatory notes

… and travelling theatres fall in this heading provided they comprise all the essential units required for their normal … equipment provided they are presented with, and as components of, these various amusements, notwithstanding … in this heading include: (1)   Roller coasters. These employ a specialized car in which the rider is seated and …

Section XVI > Chapter 84 > Heading 8437

Explanatory notes

… rotating winnowers and seed or grain selectors , more complex machines which clean by means of air currents, and … drying columns. (6)  Grain brushing machines . (7)  Grain dampening machines , whether or not incorporating heating or … 84.19  covers such drying or cooling columns, but grain dampening machines with thermal equipment remain in this …

Section VI > Chapter 28 > Heading 2840

Explanatory notes

… as are also natural borates obtained by evaporating complex brines from certain salt lakes. (1)   Sodium borates . The most important is the tetraborate (disodium tetraborate, refined … Colourless crystals, very soluble in water, efflorescent. Decomposed by heat to give a fusible varnish of boric …

Section XVIII > Chapter 90 > Heading 9012

Explanatory notes

… the scanned field. (3) The specimen stage. (4) The vacuum pump unit which maintains a vacuum in the electron tube; … is directed repeatedly onto different points of the sample. Information is obtained by measuring, for example, the electrons transmitted, the secondary electrons …

Section VI > Chapter 38 > Heading 3802

Explanatory notes

… substances (clay, bauxite, etc.) in the presence of natural impurities or added foreign matter. This treatment causes a change in the structure of the basic substance, accompanied by an increase in the specific surface, and, in … carbon, peat, lignite, coal, anthracite, etc.) at a high temperature in the presence of steam, carbon dioxide or …