Harmonized System

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Section XVI > Chapter 84 > Heading 8415

Explanatory notes

… 8415.81 - - Incorporating a refrigerating unit and a valve for reversal of the cooling/heat cycle (reversible … heat pumps designed, through a single system fitted with a valve for reversal of the cooling/heat cycle, to perform the … and cooling premises. In the cooling cycle, the reversing valve directs the flow of hot, high pressure vapour to the …

Section XVIII > Chapter 90 > Heading 9026

Explanatory notes

… of the Nomenclature, such as : (a) Pressure‑reducing valves and thermostatically controlled valves ( heading 84.81 ); (b) Anemometers (wind gauges) and … or apparatus of this heading combined with taps, valves, etc., are to be classified as indicated in the …

Section XV > Chapter 81 > Heading 8103

Explanatory notes

… It is also used to make grids and anodes for electronic valves, current rectifiers, crucibles, heat‑exchangers and … of getters (to remove the last traces of gas in radio valve manufacture). Tantalum alloys which may be classified …

Section VI > Chapter 28 > Heading 2812

Explanatory notes

… to air; decomposed by water. Specific gravity about 1.7. A solvent for sulphur, it is used in the cold vulcanisation of …

Section XVI > Chapter 85 > Heading 8501

Section V > Chapter 27 > Heading 2710

Explanatory notes

… (e.g., treatment with acids or alkalis, with selective solvents, with zinc chloride, with absorbent earths, etc., … Mixed alkylenes are mainly used in chemical synthesis, as solvents or as diluents. Because of their high octane … additives for mineral oils ( heading 38.11 ), composite solvents and thinners for varnishes ( heading 38.14 ) and …

Section XVIII > Chapter 90 > Heading 9033

Explanatory notes

… Those covered by Chapter Note 2 (a), which constitute in themselves machines, appliances, instruments or apparatus of …         (a)     Vacuum pumps ( heading 84.14 ), taps or valves ( heading 84.81 ), gears ( heading 84.83 ).         … ( heading 85.33 ), relays ( heading 85.36 ), tubes or valves ( heading 85.40 ), photocells of heading 85.41 , high …

Section XV > Chapter 72 > Heading 7205

Explanatory notes

… the electrolysis of aqueous solutions of iron salts or by pulverising iron or steel (including pulverised filings). These powders (including sponge iron … preparation of pharmaceutical products (powder obtained by pulverising iron filings). * *    * The heading does not …

Section XVI > Chapter 84 > Heading 8483

Explanatory notes

… do not transmit power but merely support a wheel or other revolving part. It also excludes : (a)   Bars of iron or … from one to another by means of an endless belt or rope revolving in contact between them. The heading covers simple …

Section VI > Chapter 37

Explanatory notes

… sensitive plates. The most common emulsions are based on silver halides (silver bromide, silver bromide-iodide, etc.) or on salts of other precious …