Harmonized System

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Section XIV > Chapter 71 > Heading 7104

Explanatory notes

… unworked or simply sawn or roughly shaped : 7104.21 - - Diamonds 7104.29 - - Other               - Other : 7104.91 - … - Diamonds 7104.99 - - Other These stones are used for the same purposes as the natural precious or semi-precious …

Section VI > Chapter 28 > Heading 2826

Explanatory notes

… the hydrogen element in an acid by a metal or by the ammonium ion (NH 4 + ). In the liquid state or in solution, … ( heading 25.30 ) or aluminium lithium fluorophosphate (amblygonite) ( heading 25.30 ). (5)   Fluorotantalates …

Section II > Chapter 13 > Heading 1302

Explanatory notes

… from the dried roots of a plant of the Leguminosae family ( Glycyrrhiza glabra ) by hot water under pressure … of various plants of the Strychnos family. (11) Quassia amara extract, obtained from the wood of the shrub of the same name ( Simaroubaceae family), which grows in South America.     Quassin, the principal bitter extract of the …

Section VI > Chapter 30 > Heading 3006

Explanatory notes

… tissue adhesives for surgical wound closure; sterile laminaria and sterile laminaria tents; sterile absorbable … not absorbable 3006.30 - Opacifying preparations for X-ray examinations; diagnostic reagents designed to be … for dental fillings. Such alloys are sometimes called “amalgams” even though they do not contain mercury. The …

Section XVIII > Chapter 90 > Heading 9013

Explanatory notes

… ). This heading includes : (1)   Lasers . These produce or amplify electro‑magnetic radiation in the wavelength range … or by the reaction from another source of energy, the light beams which are produced inside the lasing medium are repeatedly reflected and amplified in such a way that a coherent light beam (visible …

Section VII > Chapter 40 > Heading 4001

Explanatory notes

… putrefaction or coagulation. This is usually done by adding ammonia to latex in the proportion of 5 to 7 grams per litre of latex, which produces a product known as … by various methods (e.g., by centrifuging, evaporating, creaming).        The rubber content of commercial latexes …

Section XVI > Chapter 84 > Heading 8413

Section VI > Chapter 28 > Heading 2827

Explanatory notes

… and bromide oxides; iodides and iodide oxides. 2827.10 ‑ Ammonium chloride 2827.20 ‑ Calcium chloride               ‑ … chlorides included here are : (1)   Ammonium chloride (sal ammoniac, ammonium muriate) (NH 4 Cl). Results from the …

Section XVIII > Chapter 90 > Heading 9012

Explanatory notes

… differ from optical microscopes in that they use a beam of electrons instead of light rays.        The normal … of the following devices usually enclosed in a common frame as a unit : (1) A device (known as an electron gun) … is directed repeatedly onto different points of the sample. Information is obtained by measuring, for example, …

Section VI > Chapter 38 > Heading 3824

Explanatory notes

… phosphate 3824.84 - - Containing aldrin (ISO), camphechlor (ISO) (toxaphene), chlordane (ISO), chlordecone … petroleum sulphonates, e.g., of alkali metals, of ammonium or of ethanolamines are, however, excluded ( … Additives to harden varnish or glue , e.g., mixtures of ammonium chloride and urea. (18) Getters for vacuum tubes , …