Harmonized System

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Section XVIII > Chapter 90 > Heading 9007

Explanatory notes

… source in cinema projectors is commonly an electric arc‑lamp, but filament lamps may be used in some projectors. Cinematographic … includes special types of cinematographic projectors, for example, projectors which project magnifications of varying …

Section V > Chapter 25 > Heading 2522

Explanatory notes

… ‑ Slaked lime 2522.30 ‑ Hydraulic lime Quicklime (an impure calcium oxide) is obtained by calcining limestone … slaked lime (calcium hydroxide). Slaked lime is usually employed for soil improvement or in the sugar industry. Hydraulic lime is …

Section XVIII > Chapter 90 > Heading 9010

Section I > Chapter 4 > Heading 0410

Explanatory notes

… and other products of animal origin suitable for human consumption, not specified or included elsewhere in the … Nomenclature.  However, non-living insects unfit for human consumption (including flours and meals thereof) are … have been cleaned to remove feathers, down, dust and other impurities in order to render them suitable for consumption. …

Section XV > Chapter 81 > Heading 8104

Explanatory notes

… silicon carbide, calcium carbide, aluminium, etc. The high temperature of the reaction vaporises the metal which, after … magnesium is used in the preparation of many chemical compounds, as a de‑oxidising and de‑sulphurising agent in …

Section VI > Chapter 28 > Heading 2810

Explanatory notes

… (orthoboric acid) (H 3 BO 3 ) is obtained either by acid decomposition of natural borates, or by physico‑chemical … of powder or small scales, micaceous flakes or vitrified lumps, with transparent edges, ash‑grey or bluish … glass (low coefficient of expansion), vitrifiable compounds, Guignet’s green (hydrated chromic oxide), …

Section V > Chapter 27 > Heading 2706

Explanatory notes

… including reconstituted tars. These tars are very complex mixtures of variable proportions of aromatic and … all such tars including : (1)   The tars produced by high temperature distillation of coal, which consist … a larger proportion of aliphatic, naphthenic and phenolic compounds. (3)   Other mineral tars, including those …

Section XVII > Chapter 87 > Heading 8707

Explanatory notes

… of steel, lightweight alloys, wood or plastics. They may be completely equipped (e.g., with all their fittings and … and cushions, mats, luggage racks and electrical fittings). Incomplete bodies also fall in this heading, for example, those in which parts such as windscreens or doors …

Section XV > Chapter 81 > Heading 8108

Explanatory notes

… According to the process used, the metal may be obtained in compact form, as a powder for sintering (as in the case of … or as titanium carbide. Titanium is white and shiny when compact, dark grey when a powder; it is resistant to … making, e.g., vats, agitators, heat exchangers, valves and pumps for the chemical industry, for the desalination of …

Section VI > Chapter 29 > Heading 2915

Explanatory notes

… Acid peroxides, also known as diacyl peroxides, are compounds in which two acyl radicals are linked by two … of the carboxyl group (–COOH) by an inorganic cation, for example, sodium, potassium, ammonium. They may be … sulphonated, nitrated or nitrosated derivatives of the compounds described in Parts (A) to (F) above, the …

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