Harmonized System

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Section VI > Chapter 32 > Heading 3205

Explanatory notes

… lakes. Colour lakes are preparations insoluble in water, obtained by fixation of natural colouring matter (animal or … the inert base. Colour lakes should not be confused with certain other products such as synthetic organic colouring … from anthraquinone, or alizarin dyes. These lakes are used mainly for manufacturing printing inks, wallpaper and oil …

Section VI > Chapter 28 > Heading 2816

Explanatory notes

… stable but forming the carbonate slowly when exposed to air. Used in pharmacy. (2)   Magnesium peroxide (MgO 2 ). … of hydrogen peroxide on magnesium hydroxide. White powder, containing oxide as impurity; almost insoluble in water. … natural barium sulphate, sometimes known as barytes. It is obtained by calcining precipitated barium nitrate or …

Section XI > Chapter 60 > Heading 6005

Explanatory notes

… this heading covers warp knits of a width exceeding 30 cm, containing no elastomeric yarn or rubber thread or … (ISO) (See Subheading Note 1 to this Chapter). Details concerning the manufacture of warp knits (including … Note to heading 58.04 ) and are often used for making curtains. Like machine-made lace, such knitted or crocheted …

Section VI > Chapter 29 > Heading 2924

Explanatory notes

… acids - heading 29.29 ). Amides are compounds which contain the following characteristic groups : (–CONH 2 ) … the –NH 2 groups by alicyclic or aryl radicals. Ureides are obtained from urea by replacing one or more of the hydrogen … , the mono-amide of aspartic acid. Extracted from certain vegetables. Crystalline. (3) Open chain ureides …

Section V > Chapter 25 > Heading 2523

Explanatory notes

… cement 2523.90 - Other hydraulic cements Portland cement is obtained by firing limestone containing in its natural state, or mixed artificially with, … this heading may be coloured. This heading does not include certain products sometimes known under the name of cement, …

Section XIV > Chapter 71 > Heading 7108

Explanatory notes

… wares, in dental alloys or as solders. These alloys may contain zinc and cadmium and are then also used as solders. … The alloy called “doré” or “bullion doré” consisting mainly of silver and copper falls in this heading when it contains 2 % or more, by weight, of gold. It is obtained …

Section VI > Chapter 29 > Heading 2903

Section XVI > Chapter 84 > Heading 8470

Explanatory notes

… 8470.90 ‑ Other All machines of this heading, except for certain cash registers, have one common characteristic in … as calculating devices (e.g., devices incorporated in certain stamp affixing machines, revolution counters, … other types of calculations (e.g., extract square roots, raise a number to a given power and carry out trigonometric …

Section VI > Chapter 28 > Heading 2801

Explanatory notes

… suffocating, corrosive, two and a half times as dense as air, slightly soluble in water and readily liquefied. It is …

Section VI > Chapter 38 > Heading 3810

Explanatory notes

… of metals, or for roughening these surfaces to facilitate certain operations. The pickling process may be a finishing … metallising, tinning, cladding, electroplating, painting, etc.         Pi ckling preparations are usually … hydrofluoric , nitric, phosphoric, etc.), and sometimes contain inhibitors which restrict the corrosion of the …