Harmonized System

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Section VI > Chapter 29 > Heading 2923

Explanatory notes

… 2923.30 - Tetraethylammonium perfluorooctane sulphonate 2923.40 - Didecyldimethylammonium perfluorooctane … quaternary ammonium salts . The most important salts and substitution derivatives of quaternary ammonium bases are  : … A compound from which other very important biological substances are derived (e.g., acetylcholine, methylcholine). …

Section XV > Chapter 73 > Heading 7304

Explanatory notes

… also cover honing and roller burnishing to obtain polished surfaces (tubes with a low degree of roughness) required, … disc placed over a forming mould, the blank produced being subsequently hot‑drawn. (E)         Forging. (F)         … covers finned or gilled tubes or pipes and hollow profiles such as integrally finned or gilled tubes with longitudinal …

Section XVI > Chapter 85 > Heading 8528

Explanatory notes

… and television sets utilize different technologies, such as CRT (cathode-ray tube), LCD (liquid crystal … of data processing systems (e.g., RS-232C interface, DIN, D-SUB, VGA, DVI, HDMI or DP (display port) connectors); (iv) … have a display pitch size (usually smaller than 0.3 mm) suitable for close proximity viewing; (vi)    They may have …

Section XV > Chapter 72 > Heading 7210

Explanatory notes

… “clad, plated or coated” applies to the products which were subjected to one of the treatments described in Part (C) … ( Chapter 71 ). (b)   Products of heading 83.10 . ° °   ° Subheading Explanatory Notes. For the purpose of the subheadings of heading 72.10, products subjected to more …

Section XVI > Chapter 84 > Heading 8423

Explanatory notes

… operated counting scales. (9)   Constant weight scales such as check scales (indicating excess or deficiency over … those of platinum) are also covered by this heading. PARTS Subject to the general provisions regarding the …

Section XVI > Chapter 84 > Heading 8454

Explanatory notes

… or smelting copper or nickel mattes, galena, etc.) by subjecting the materials, previously melted or brought to a … by this action most of the carbon and dissolved elements such as manganese, silicon and phosphorus are oxidised and … treating copper matte) with an internal metal grille for supporting the charge. (B) LADLES These are used to receive …

Section XVI > Chapter 84 > Heading 8405

Explanatory notes

… for passing a current of air (or of air and steam) by suction or blowing. A thick bed of fuel is burned on the … or other waste). For certain uses, particularly for supplying gas engines, producer or water gases must be cleaned of impurities such as dust, tars, sulphurous compounds, etc., and …

Section X > Chapter 48 > Heading 4806

Explanatory notes

… by immersing unsized and unloaded paper of good quality in sulphuric acid for a few seconds. The action of the acid … parchment paper is used as a protective wrapping for fatty substances (e.g., butter, lard) and other provisions, for … cards, etc. Vegetable parchment paperboard is used as a substitute for parchment in bookbinding, for the manufacture …

Section XVI > Chapter 84 > Heading 8472

Explanatory notes

… etc. The heading does not cover the hand tools, not having such a base, of Chapter 82 . The machines of this heading … of words simultaneously (e.g., when inserting, in words, a sum of money). They usually employ special indelible and … machines, automatic data processing machines, etc. Subject to Note 6 (B) to this Chapter, the printers which …

Section XIV > Chapter 71 > Heading 7115

Explanatory notes

… metal is present as minor constituents only. (b)   Sterile surgical suture materials, dental fillings and other goods … confined to articles for technical or laboratory use such as crucibles, cupels and certain spatulas (e.g., of …

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