Harmonized System

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Section XVI > Chapter 84 > Heading 8417

Explanatory notes

… sintering or heat processing of fissile materials recovered with a view to recycling, for the separation of irradiated … and specialised ceramic or refractory parts presented with, and as components of, furnaces or ovens (assembled or … oven or furnace doors, dampers, side-shields; observation windows, arches and tuyères for blast furnaces). * *    * …

Section XVI > Chapter 84 > Heading 8458

Explanatory notes

… machines used for surface‑working metal by cutting away or otherwise removing metal. These machines can be distinguished from tools (pneumatic, hydraulic or with motor) for working in the hand of heading 84.67 , by … a wall or on another machine, and are thus usually provided with a base plate, mounting frame, stand, etc. The heading …

Section VI > Chapter 28 > Heading 2846

Explanatory notes

… from mixtures of the elements. This means that the heading will include mixtures of oxides or hydroxides of these … example, cover a mixture of europium and samarium nitrates with the oxalates nor a mixture of cerium chloride and … ceric salts.       Cerium oxalate appears as a powder or in yellowish‑white hydrated crystals, practically insoluble in …

Section VI > Chapter 31 > Heading 3105

Explanatory notes

… (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium … fertilisers obtained by treating natural calcium phosphates with nitric acid, removing the resulting calcium nitrate by … and, after separation, neutralising the solution with ammonia, adding potassium salts and finally evaporating …

Section VI > Chapter 32 > Heading 3207

Explanatory notes

… cobalt, etc.) or salts (fluorides, phosphates, etc.) with or without fluxes or other substances, and are fired at high … used for decorating ceramics or glassware.  The most widely used are gold, silver, aluminium or chromium lustres. …

Section VI > Chapter 28 > Heading 2840

Explanatory notes

… or by treating natural calcium borates or boric acid with sodium carbonate. Anhydrous or hydrated with 5 H 2 O or 10 H 2 O. Heated and then cooled down, it … calcium borates . Obtained by treating natural borates with calcium chloride; white powder used in fire retardant …

Section XV > Chapter 72 > Heading 7216

Explanatory notes

… and sections are usually produced by hot‑rolling, hot‑drawing, hot‑extrusion or hot-forging or forging blooms or … An I section (narrow or medium flange) is a product with flanges of a width not exceeding 0.66 of the height of the section and …

Section VII > Chapter 39 > Heading 3913

Explanatory notes

… ‑ Alginic acid, its salts and esters 3913.90 ‑ Other The following are some of the principal natural or modified … solution. It may be produced by precipitating the extract with a mineral acid or by treating the extract to obtain an impure calcium alginate which on treatment with a mineral acid is transformed into alginic acid of high …

Section VI > Chapter 35 > Heading 3506

Explanatory notes

… A small brush of the appropriate type is sometimes packed with glues or adhesives (e.g., those put up in jars or tins … are classified with the glues or adhesives if packed therewith.         Products having other uses in addition to … in the form of flakes or powders and vary in colour from yellowish to brown. (2) Glues or other adhesives obtained by …

Section XVIII > Chapter 90 > Heading 9008

Explanatory notes

… condensing lens, a negative holder, one or more objectives with a focussing device (often automatic), and an easel for … is classified in this heading whether or not presented with optical parts. The optical elements presented … photocopying apparatus incorporating an optical system, with a small glass image positioning screen ( heading 84.43 …