Harmonized System

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Section VI > Chapter 28 > Heading 2835

Explanatory notes

… (NaPH 2 O 2 ), in white tablets or crystalline powder, hygroscopic. (II)  Calcium phosphinate (hypophosphite) … pyrophosphate (neutral diphosphate) (Na 4 P 2 O 7 ). Non‑hygroscopic white powder, soluble in water. Used in …

Section XVI > Chapter 85 > Heading 8514

Section IX > Chapter 45 > Heading 4503

Explanatory notes

… or the material giving it its essential character. (2)   Discs, washers and wafers of natural cork, for lining crown … 65 . (c)   Crown corks of base metal lined with cork discs ( heading 83.09 ). (d)   Cork cartridge wads ( heading …

Section VI > Chapter 32 > Heading 3202

Explanatory notes

… iron or zirconium salts).         The tanning products described in paragraphs (A) and (B) above remain classified … interfibrillary protein and generally also the lime in the scraped skins, softening them and rendering them more …

Section XV > Chapter 73 > Heading 7307

Explanatory notes

… or 73.26 ). The connection is obtained : ‑      by screwing, when using cast iron or steel threaded fittings; … parts of structures ( heading 73.08 ). (b)   Bolts, nuts, screws, etc., suitable for use in the assembly of tube or … ( heading 83.07 ). (d)   Ha n gers, stays and the like, as described above; and tube plugs, threaded or not, fitted …

Section VI > Chapter 28 > Heading 2839

Explanatory notes

… powder, in vitreous masses (water‑glass) or in more or less viscous aqueous solutions. They deflocculate the gangues of … of washing preparations; for pickling metals; as anti‑scaling products (see Explanatory Note to heading 38.24). … powder, used in ceramics), zinc silicate (coating of fluorescent tubes), aluminium silicate (manufacture of …

Section XVIII > Chapter 90 > Heading 9004

Explanatory notes

… spectacles and goggles generally consist of plane or curved discs of ordinary glass (whether or not optically worked, or … or protect most of the face (e.g., visors for welders; screens and eye‑shades for motor‑cyclists; face masks for …

Section XV > Chapter 83 > Heading 8310

Explanatory notes

… to the essential information which is to be added later in manuscript or otherwise. The heading includes : (1)   … (or sets thereof), employed to make up sign‑plates as described above, for shop window displays, train‑indicator … machines ( heading 84.73 ). (c)   Signalling plates, discs and semaphores of heading 86.08. …

Section XVI > Chapter 85 > Heading 8522

Explanatory notes

… classified here includes : (1)   Pick‑up cartridges for discs or mechanically recorded sound films. These convert … and bars and erasing machines; magnetic needle‑points; scales showing point reached in dictation. (13) Other …

Section V > Chapter 25 > Heading 2503

Explanatory notes

… superheated steam through pipes sunk in a bore hole (Frasch process). (3)   Unrefined sulphur obtained by the … as by‑products in the purification of coal gas, by the scrubbing of sulphurous furnace gases, from sour natural gas … This is especially true of the sulphur produced by the Frasch process which contains such small proportions of …