Harmonized System

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Section XVI > Chapter 84 > Heading 8405

Explanatory notes

… but excludes acetylene generators which are in fact lamps requiring only the fitting of a burner ( heading 94.05 … flow of air and steam is regulated so that combustion is incomplete.  The decomposition of the water and the incomplete combustion of …

Section XVI > Chapter 84 > Heading 8421

Explanatory notes

… (I)    Machines which, by the use of centrifugal force, completely or partly separate substances according to their …

Section V > Chapter 25 > Heading 2519

Explanatory notes

… which is a naturally occurring magnesium carbonate with impurities in various proportions. The heading also covers … less soluble than other types of magnesia and is used, for example, in the manufacture of crucibles or heating elements … (2) Dead‑burned (sintered) magnesia , obtained by high temperature (about 1400‑1800 ° C) calcination. Sintered …

Section XIII > Chapter 68 > Heading 6810

Explanatory notes

… - Other articles : 6810.91 - - Prefabricated structural components for building or civil engineering 6810.99 - - … hours under high pressure in horizontal autoclaves, at a temperature of around 140 °C. These products, which may be … much the same purposes as ordinary bricks, tiles, etc. When lumps of quartz of various sizes are introduced into the …

Section VI > Chapter 28 > Heading 2833

Explanatory notes

… in the air and dissolving in water with a fall in temperature. The decahydrate (Na 2 SO 4 .10H 2 O) is known as Glauber’s salt. Impure forms of disodium sulphate (90 ‑ 99 % purity), …

Section XVI > Chapter 85 > Heading 8501

Explanatory notes

… motors”, for the propulsion of boats, in the form of a unit comprising an electric motor, shaft, propeller and a rudder. … motors consist essentially of one or more primary members composed of magnetic circuits, generally laminated (stack of …

Section III > Chapter 15

Explanatory notes

… their cleavage products (e.g., crude glycerol). (3) Compounded edible fats and oils (e.g., margarine). (4) …

Section VI > Chapter 28 > Heading 2814

Explanatory notes

… OXIDES, HYDROXIDES AND PEROXIDES OF METAL GENERAL Bases are compounds characterised by a hydroxyl radical (OH) and which … ion (ammonium (NH 4 + )) at the cathode. Metal oxides are compounds of a metal with oxygen. Many can combine with one … other bases to form salts, while another more common class (amphoteric oxides) can behave both as anhydride oxides or as …

Section XVIII > Chapter 91 > Heading 9102

Explanatory notes

… etc. However, timepieces incorporating a stand, however simple, should not be regarded as watches. The heading … not only watches with simple movements but also those with complex systems (i.e., incorporating extra elements in addition to those for simply indicating hours, minutes and seconds), for example, …

Section XVI > Chapter 84 > Heading 8436

Explanatory notes

… a plough which cuts the roots and a telescoping boom which amplifies the tractor power. (3) Tree transplanters , …