Harmonized System

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Section VI > Chapter 28 > Heading 2825

Explanatory notes

… Colourless, lachrymatory liquid which fumes in the air. A powerful reducing agent, used in the manufacture of a … are also classified here. The most important is hydrazine sulphate , colourless crystals which are slightly soluble in … heading. The most important are hydroxyammonium chloride , sulphates and nitrate, white or colourless crystals soluble …

Section VI > Chapter 28 > Heading 2843

Explanatory notes

… are obtained in this state either by dispersion or cathodic pulverisation, or by reducing one of their inorganic salts. …

Section VI > Chapter 38 > Heading 3802

Explanatory notes

… or free chemical bonds saturable by organic or inorganic molecules (chemical adsorption).         These products are … On the other hand, in aqueous suspension they establish powerful electrostatic interactions with colloids, facilitating or inhibiting their coagulation, and are therefore suitable for use as filtering …

Section IV > Chapter 20 > Heading 2009

Explanatory notes

… be preceded either by crushing or grinding (for apples in particular) or by treatment with cold or hot water or with … earth, etc.) or of enzymes, by centrifuging or by ultrafiltration, this last process being used also for the …

Section XVI > Chapter 84 > Heading 8464

Explanatory notes

… or cutting machines , such as : (1) Sawing machines proper (circular saws, band saws and reciprocating saws, including … spirally twisted strands, and guided by a system of grooved pulleys. The wire, assisted by an abrasive mixture of … of material, by laser or other light or photon beam, ultrasonic or plasma arc processes and other machines of …

Section X > Chapter 48 > Heading 4805

Explanatory notes

… or less 4805.25 - - Weighing more than 150 g/m 2 4805.30 ‑ Sulphite wrapping paper 4805.40 ‑ Filter paper and … as defined in subheading Note 3 to this Chapter. (2)   Multi‑ply paper and paperboard which are products obtained by pressing together two or more layers of moist pulps of which at least one has characteristics different …

Section XVI > Chapter 84 > Heading 8448

Explanatory notes

… of the machines of heading 84.44, 84.45, 84.46 or 84.47 (in particular spinning, weaving, knitting or embroidery … of dobbies and Jacquards), or may perform mechanically a particular job necessary for the proper working of the main … with projecting pegs which form a chain, or in many cases (particularly Jacquards) by a series of suitably perforated …

Section VI > Chapter 28 > Heading 2836

Explanatory notes

… or (Na 2 C 2 O 6 ) (peroxodicarbonates); these result from the action of carbon dioxide on metal peroxides. … . Obtained by heating a mixture of chalk and ammonium sulphate (or chloride), or by combining carbon dioxide with … which, in addition to various impurities (chlorides, sulphates, organic matter), contains ammonium hydrogen …

Section XVI > Chapter 84 > Heading 8419

Explanatory notes

… freeze drying units and spray dryers 8419.34 ‑ ‑ Other, for agricultural products 8419.35 ‑ ‑ Other, for wood, paper pulp, paper or paperboard 8419.39 ‑ ‑ Other 8419.40 ‑ … or heating food 8419.89 ‑ ‑ Other 8419.90 ‑ Parts It should be noted that this heading does not include : (a)   …

Section XVI > Chapter 84 > Heading 8471

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