Harmonized System

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Section XIV > Chapter 71 > Heading 7102

Explanatory notes

… form of carbon with, in the pure state, a very high refractive index and dispersive power. It is the hardest … to say, opaque diamonds and other diamonds (including waste from working diamonds), normally unsuitable for cutting. … natural state, i.e., as they occur in deposits or extracts from the parent rock, sorted into lots or parcels. (2)   …

Section XV > Chapter 73 > Heading 7318

Explanatory notes

… are also included in the heading. Screws for wood differ from bolts and screws for metal in that they are tapered and … These are used to suspend or fix other objects and differ from the hook‑nails of the preceding heading only in that … for the permanent assembly of metal parts (e.g., in large frameworks, ships and containers). The heading excludes …

Section XV > Chapter 72 > Heading 7203

Explanatory notes

… this Chapter, Part (I) ‑ (B). These products are obtained from ore in lumps or in granules or from concentrated ore in the form of briquettes or pellets. … of concentrated ores of heading 26.01; the former differ from the latter, notably, by the shiny appearance of their …

Section VI > Chapter 29 > Heading 2910

Explanatory notes

… (ISO) 2910.90 - Other If one molecule of water is removed from organic compounds (diols, glycols) having two hydroxyl … (ethylene oxide or  epoxyethane)  : The epoxide derived from propylene glycol (i.e., ethylene glycol in which one … insecticide and fungicide; extensively used for preserving fruit and other foodstuffs. Also used in organic synthesis, …

Section VII > Chapter 39 > Heading 3903

Explanatory notes

… records. Expanded (cellular) polystyrene contains gases from the expanding process and has a low bulk‑density. It is extensively used as a thermal insulent for refrigerator doors, air‑conditioner housings, cold storage facilities, freezer display cabinets, and in the construction industry. …

Section XI > Chapter 62 > Heading 6213

Explanatory notes

… or scalloped, are hemmed, rolled, bordered or provided with fringes, the latter usually consisting of projecting warp or weft threads. In the case of fringed articles the length of the side is to be taken to …

Section VI > Chapter 28 > Heading 2824

Explanatory notes

… also obtained as by‑products of the extraction of silver from argentiferous lead. Lead oxide is used in the glass … red lead, minium) (approximate formula Pb 3 O 4 ). Obtained from unmelted lead monoxide (massicot). A toxic, orange‑red … fusible glass of remarkable brilliance arising from a high refractive index. (3)   Lead dioxide (puce oxide, plumbic …

Section V > Chapter 25 > Heading 2519

Explanatory notes

… covers various types of magnesia (magnesium oxide) obtained from natural magnesium carbonate, basic magnesium carbonate, magnesium hydroxide precipitated from sea water, etc. The main types are : (1) Fused magnesia … the sintering temperature. It is used in the manufacture of refractory bricks. (3) Caustic‑burned magnesia , usually …

Section II > Chapter 11 > Heading 1108

Explanatory notes

… coloration with iodine instead of blue. It is extracted from Jerusalem artichokes, dahlia roots and chicory roots. When hydrolised by long boiling in water it forms fructose (laevulose). This heading excludes , inter alia  : … Isolated amylopectin and isolated amylose obtained by the fractionation of starch ( heading 39.13 ). …

Section XVI > Chapter 85 > Heading 8542

Explanatory notes

… circuits containing only passive elements are excluded from this heading. Unlike electronic integrated circuits, … on one or more insulating substrates, with or without leadframes, but with no other active or passive circuit … oscillators and combinations thereof are excluded from the definition of an MCO (e.g., transformers …