Harmonized System

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Section VI > Chapter 28 > Heading 2815

Explanatory notes

… carbonate ( heading 28.36 ). Sodium hydroxide is obtained, for example, by causticising sodium carbonate with milk of … aqueous solution produces solid sodium hydroxide in the form of flakes or lumps. The pure product is presented in … about 2.8. It is decomposed by water, generating heat and forming hydrogen peroxide. It is also presented in the form …

Section XI > Chapter 53 > Heading 5303

Explanatory notes

… However, vegetable materials, which when raw or in certain forms fall in Chapter 14 (for example, stalks of broom), are …

Section XVIII > Chapter 90 > Heading 9012

Explanatory notes

… normal type of electron microscope is an assembly of the following devices usually enclosed in a common frame as a unit : (1) A device (known as an electron gun) for emitting and accelerating the electrons. (2) A system … protons which have a wavelength 40 times shorter than the former. A correspondingly higher separating power is thus …

Section XVI > Chapter 84 > Heading 8483

Explanatory notes

… shafts driven directly by the motor. (2)   Counter shafts , for coupling to the main shaft by belts and pulleys or by … part. It also excludes : (a)   Bars of iron or steel of uniform cross‑section ( heading 72.14 or 72.15 ). (b)   Simple … The heading also excludes  : (a)   Pieces roughly shaped by forging, of heading 72.07 . (b)   Transmission equipment of …

Section VI > Chapter 29 > Heading 2927

Explanatory notes

… (1)   Diazonium salts . These are products of general formula RN 2 + X –  where R is an organic radical and X – … * Diazo- and azo-compounds are the starting point in the formation of azo dyes. They give substitution derivatives …

Section VI > Chapter 28 > Heading 2853

Explanatory notes

… which ignite spontaneously. Used with calcium carbide for naval signals (self‑igniting flares for buoys). (3)   Zinc phosphide (Zn 3 P 2 ). Grey, … (E) AMALGAMS, EXCEPT AMALGAMS OF PRECIOUS METALS Mercury forms amalgams with several base metals (alkali metals and …

Section XV > Chapter 81 > Heading 8102

Explanatory notes

… simply by sintering, profiles, plates, sheets, strip and foil 8102.96 - - Wire 8102.97 - - Waste and scrap 8102.99 ‑ … to the metal. The metal is obtained either in a compact form suitable for rolling, drawing, etc., or as a powder …

Section IX > Chapter 45 > Heading 4504

Explanatory notes

… of this heading may be impregnated (e.g., with oil), or reinforced by backing with paper or cloth provided it does … many cases, however, the addition of the binders required for the agglomeration modifies some of the characteristic …

Section VI > Chapter 38 > Heading 3816

Explanatory notes

… 38.01 . This heading covers certain preparations (e.g., for furnace linings) with a basis of such refractory … lining).  These products are traded in powder or granular form consisting predominantly of crushed sintered dolomite.  … aluminous cements) and refractory aggregates, used for the foundation of furnaces, coke ovens, etc., or for patching …

Section XVII > Chapter 88 > Heading 8804

Explanatory notes

… accessories thereto. This heading covers parachutes used for the descent of personnel, military supplies or … mountain, the top of a cliff, etc., and which consist of a folding canopy or shroud (wing), cord shroud lines for … conditions and if air currents so permit, paragliders may follow ascending trajectories. The heading also includes …