Harmonized System

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Section VI > Chapter 28 > Heading 2837

Explanatory notes

… These salts are very poisonous. (1)   Sodium cyanide (NaCN). Obtained by the action of coke or hydrocarbon gases and atmospheric nitrogen on sodium carbonate, by treating calcium cyanamide (see heading 31.02) …

Section XI > Chapter 59 > Heading 5911

Explanatory notes

… felt and felt-lined woven fabrics, coated, covered or laminated with rubber, leather or other material, of a kind … of a kind used for other technical purposes, including narrow fabrics made of velvet impregnated with rubber, for covering weaving spindles …

Section VI > Chapter 38 > Heading 3811

Explanatory notes

… oils or for other liquids used for the same purposes to eliminate or reduce undesirable properties, or to impart or … and dispersants , such as those based on alkyl phenoxides, naphthenates or petroleum sulphonates of certain metals, …       (d)   Additives with surface‑active action, which eliminate or prevent the formation of sediment (asphaltenes) …

Section X > Chapter 49 > Heading 4901

Explanatory notes

… workbooks sometimes called writing books), with or without narrative texts, which contain questions or exercises … hymn sheets, etc. This group excludes printed cards bearing personal greetings, messages or announcements ( … ), and printed forms which require the insertion of certain additional information for completion ( heading 49.11 ). …

Section XVI > Chapter 84 > Heading 8454

Explanatory notes

… iron into steel, or smelting copper or nickel mattes, galena, etc.) by subjecting the materials, previously melted or brought to a high temperature in a furnace, to a strong current of oxygen; by this action most … such as manganese, silicon and phosphorus are oxidised and eliminated in the form of gas or molten slag.  The oxidation …

Section IX > Chapter 44 > Heading 4410

Explanatory notes

… are usually recognisable at the edges of the board with the naked eye. However, in some cases, microscopic examination may be required to distinguish the particles and … strands are mixed with binders (usually waterproof) such as isocyanate or phenolic resins, interleaved together and laid …

Section XVI > Chapter 85 > Heading 8502

Explanatory notes

…               ‑ Generating sets with compression‑ignition internal combustion piston engines (diesel or semi‑diesel … SETS The expression “generating sets” applies to the combination of an electric generator and any prime mover … certain windings in common. They are used to transform the nature of the current (to convert from AC to DC or vice …

Section VI > Chapter 28 > Heading 2804

Explanatory notes

… liquid air, or also (in the case of helium) from certain natural gases. They are presented under pressure. Radon is a … combustion, but extinguishes flames. It is obtained by fractional distillation of liquid air, and is presented … is chiefly used for the manufacture of ammonia and calcium cyanamide, but is also used to provide an inert atmosphere …

Section XIII > Chapter 69 > Heading 6907

Explanatory notes

… rectangular; tiles may be of other geometric shapes (hexagonal, octagonal, etc.). Tiles are mainly used for facing walls, … vitrified, for example, tiles of stoneware, or porcelain (china) or of fired steatite (e.g., tiles for lining grinding …

Section XI > Chapter 60 > Heading 6005

Explanatory notes

… than 20 holes/cm 2 and not more than 100 holes/cm 2 , and impregnated or coated with alpha-cypermethrin (ISO), … galloon knitting machines) are to be found in the General Explanatory Note to Chapter 60, Part (A) (II). Warp knit … of Chapter 59 (e.g., impregnated, coated, covered or laminated fabrics of heading 59.03 or  59.07 , rubberised …

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