Harmonized System

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Section XVI > Chapter 85 > Heading 8518

Explanatory notes

… of crystal (e.g., quartz or rock crystal), thus causing the production of electric charges on the crystal. This type of …

Section XVI > Chapter 84 > Heading 8471

Explanatory notes

… , that is to say with no manual intervention for the duration of the task. These machines mostly use electronic … them to modify their execution, by logical decision during the processing run. Thus, machines which operate only …

Section XV > Chapter 72 > Heading 7205

Explanatory notes

… or less round in shape, and angular “ grits ” . Shot is produced by pouring liquid iron or steel into cold water or … are produced by atomisation of molten iron or steel, by the reduction of iron oxides (dry process), by crushing pig … of welding electrodes and welding powders, in the chemical industry (especially as reducing agents), and sometimes in …

Section XVI > Chapter 85 > Heading 8522

Explanatory notes

… erasing. (4)   Cassette shaped adapters which enable sound reproduction from a portable optical disc player through a … , specially designed and constructed for sound recording or reproducing apparatus. (11) Cassettes for cleaning the magnetic heads of sound or video recording or reproducing apparatus, whether or not put up in retail …

Section VI > Chapter 36 > Heading 3602

Explanatory notes

… mixtures of chemical substances the combustion of which produces a more violent reaction than that produced by propellent powders. Combustion produces an … short period. Phlegmatising agents are often added to these products to reduce their sensitivity to shock or friction. …

Section XVI > Chapter 84 > Heading 8418

Explanatory notes

… are in the main machines or assemblies of apparatus for the production, in a continuous cycle of operations, of low … in certain types, functions as the absorber on cooling during periods when the heat is withdrawn. In certain dry …

Section VI > Chapter 28 > Heading 2812

Explanatory notes

… COMPOUNDS OF NON‑METALS GENERAL This sub‑Chapter covers products which, although known by names (chlorides, … pure silicon, silicones and smoke screens. Substitution products of hydrogen silicides, such as trichlorosilane … Colourless gas. Fumes in moist air; carbonises organic products. Highly absorbent of water forming fluoroboric …

Section XVIII > Chapter 90 > Heading 9024

Explanatory notes

… and appliances of this heading are generally used in industrial or research laboratories for testing manufactured … selected or standard specimens). They may also be used during manufacturing processes, in constructional work (in … tests (mainly for bars), bending tests (springs). (D)  Ductility tests mainly used to test sheet metal. An …

Section VI > Chapter 28 > Heading 2805

Explanatory notes

… (“dioxide”), sodium cyanide, sodamide, etc., the indigo industry, the manufacture of explosives (chemical primers … damp air. (1)   Calcium . Obtained by the alumino thermal reduction of calcium oxide or by electrolysing molten … alloys, etc. (2)   Strontium . White or pale yellow metal, ductile (specific gravity 2.5). (3)   Barium . White metal …

Section XV > Chapter 78

Explanatory notes

… by flotation, is generally roasted or sintered, and is then reduced by smelting. During the roasting or sintering process, the sulphide is … silver. It is therefore generally further refined to produce almost completely pure lead. Lead is also obtained …