Harmonized System

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Section VI > Chapter 28 > Heading 2819

Explanatory notes

… 28.19 ‑ Chromium oxides and hydroxides. 2819.10 ‑ Chromium trioxide 2819.90 ‑ Other (A) CHROMIUM OXIDES (1)   Chromium trioxide (chromium (VI) oxide) or chromic anhydride (CrO 3 ) (wrongly known as “chromic acid”, because … also used in medicine and, when mixed with kieselguhr (“epurite”), for purifying acetylene. (2)   Dichromium …

Section XIII > Chapter 70 > Heading 7009

Explanatory notes

… sometimes platinum or aluminium) to give a clear and brilliant reflection. In the silvering method a dilute ammoniacal solution of silver … In the platinum deposition process, a compound of platinum chloride is brushed on to the glass, which is then heated …

Section XV > Chapter 81 > Heading 8112

Explanatory notes

… High temperature electrolysis of a mixture of beryllium oxyfluoride (manufactured from the ore) and barium or other fluorides. A graphite crucible is used as anode and the …

Section XI > Chapter 53 > Heading 5302

Explanatory notes

… hemp ( Cannabis sativa L. ), a plant which grows in very varied climates and very varied soils. The fibres occur in the bast of the plant and are separated by a series of operations similar to those applied in the case of … been loosened by the retting. (3)   Scutched hemp which comprises the isolated fibres, sometimes 2 m or more in …

Section XV > Chapter 83 > Heading 8310

Explanatory notes

… base metal plates which bear (by enamelling, varnishing, printing, engraving, perforation, stamping, moulding, … already on the plate (e.g., the insertion of the individual serial number on a plate showing all the essential … to the essential information which is to be added later in manuscript or otherwise. The heading includes : (1)   …

Section VI > Chapter 29 > Heading 2924

Explanatory notes

… - Acyclic amides (including acyclic carbamates) and their derivatives; salts thereof : 2924.11 - - Meprobamate (INN) … characteristic groups : (–CONH 2 ) ((–CO) 2 NH) ((–CO) 3 N) Primary amide Secondary amide Tertiary amide The hydrogen of … production of azo dyes, are also included here. Ureines are derived from urea by replacing one or more hydrogen atoms of …

Section XVIII > Chapter 90 > Heading 9020

Explanatory notes

… vapours, smoke, etc., and are therefore used in certain industries, or in warfare (against poison gases). In these … comes directly from the outside and is passed through a filtering device which absorbs poison gases or retains dust. … consists of a sheath held in place by one or more elastic ribbons, and contains a filtering or absorbent material …

Section XI > Chapter 54 > Heading 5402

Explanatory notes

… ‑ Textured yarn : 5402.31 ‑ ‑ Of nylon or other polyamides, measuring per single yarn not more than 50 tex 5402.32 ‑ ‑ … polyamides 5402.46 - - Other, of polyesters, partially oriented 5402.47 - - Other, of polyesters 5402.48 - - Other, … heading does not include : (a)   Synthetic monofilament and strip and the like of synthetic textile materials, of …

Section XV > Chapter 76

Explanatory notes

… alloys, and certain articles thereof. Aluminium is obtained principally from bauxite, a crude hydrated alumina (see the … aluminate; this is then filtered to eliminate insoluble impurities (iron oxide, silica, etc.). The aluminium is then … dissolved in fused cryolite (the latter is sodium aluminium fluoride, but it acts solely as a solvent). This …

Section XIII > Chapter 68 > Heading 6815

Explanatory notes

…         - Carbon fibres; articles of carbon fibres for non-electrical uses; other articles of graphite or other carbon … non-electrical uses : 6815.11 - - Carbon fibres 6815.12 - - Fabrics of carbon fibres 6815.13 - - Other articles of … 6815.91 - - Containing magnesite, magnesia in the form of periclase, dolomite including in the form of dolime, or …

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