Harmonized System

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Section VI > Chapter 31 > Heading 3101

Explanatory notes

…  : (1)   Guano, which is an accumulation of the excreta and remains of sea birds, found in large quantities on certain islands and coasts. It is both nitrogenous and … constituents; the remaining sludge is then allowed to air dry or is filtered.  The stabilised sludge so obtained …

Section XV > Chapter 73 > Heading 7326

Explanatory notes

… ‑ Other This heading covers all iron or steel articles obtained by forging or punching, by cutting or stamping or … brackets); suspension or connecting devices for insulator chains (suspension rods, shackles, extensions, eyes or rings … for tethering livestock, etc.; hoops for garden borders, trainers for trees, sweet peas, etc.; turnbuckles for …

Section I > Chapter 3 > Heading 0302

Explanatory notes

… hippoglossus, Hippoglossus stenolepis ) 0302.22 ‑ ‑ Plaice ( Pleuronectes platessa ) 0302.23 ‑ ‑ Sole ( Solea …

Section XVIII > Chapter 90 > Heading 9029

Explanatory notes

… kind (revolutions, items, length, etc.), or an amount to be paid. But the heading excludes totalling devices of a kind … Stroboscopes of all kinds. Such apparatus and instruments remain classified here whether or not they incorporate a … of a mechanical part (e.g., machine shaft). They consist mainly of a driving spindle geared to pointer or drum …

Section V > Chapter 25 > Heading 2508

Explanatory notes

… materials in the ceramic industry (bricks, building tiles, porcelain, china, earthenware, refractory bricks and other … clay is also used for soil improvement. These products remain in this heading even if they have been heated to … aluminium silicates used as refractories. (4)   Mullite , obtained by heat treatment of sillimanite, kyanite or …

Section XVI > Chapter 84 > Heading 8439

Explanatory notes

… other purposes (e.g., for the manufacture of viscose rayon, certain building boards or explosives). It also covers … followed by a sudden reduction of the pressure. (B)  Strainers . In these the dilute pulp passes through screens … surface of the paper or paperboard is exposed to humid air. (G) Machines for graining and embossing (however, …

Section VI > Chapter 28 > Heading 2826

Explanatory notes

… OF INORGANIC ACIDS AND METALS GENERAL Metal salts are obtained by replacing the hydrogen element in an acid by a … atoms are replaced by the metal, but acid salts still contain part of the hydrogen replaceable by metal; basic … (acid‑function metal hydroxides). Double or complex salts. Certain double or complex salts are specifically referred to …

Section II > Chapter 12 > Heading 1211

Explanatory notes

… to 12.07 )), or in the form of waste resulting, in the main, from mechanical treatment. They remain in the heading whether fresh, chilled, frozen or … form. In other forms, such wood is excluded ( Chapter 44 ). Certain plants or parts of plants (including seeds or …

Section VI > Chapter 29 > Heading 2921

Explanatory notes

… amines, amides, imides, but does not cover compounds containing nitro or nitroso groups as the only nitrogen … . Colourless monoclinic crystals; darkens in air. (b) m - Phenylenediamine . Colourless needles becoming red in air. (c)  p - Phenylenediamine . White to light purple …

Section XIII > Chapter 68 > Heading 6812

Explanatory notes

… These articles may be made by felting, spinning, twisting, plaiting, weaving, making up or moulding. For a description … heading 25.24. Asbestos paper, board and felt are usually obtained by crushing the fibres into pulp which is then … Other asbestos articles of this heading include cords, plaits, pads; fabric in the piece or cut to shape; strips, …

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