Harmonized System

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Section VI > Chapter 28 > Heading 2840

Explanatory notes

… heading covers borates, metal salts of the various boric acids, principally normal or orthoboric acid (H 3 BO 3 ) … Decomposed by heat to give a fusible varnish of boric anhydride; hence its use as a fire‑proofing material. Also …

Section VII > Chapter 39 > Heading 3912

Explanatory notes

… is a carbohydrate of high molecular weight, forming the solid structure of vegetable matter. It is contained in … alkaline solution of cellulose xanthate is extruded into an acid bath. It is usually in the form of thin, transparent … by treating paper or sheets of cellulose pulp with zinc chloride, is generally in the form of rods, tubes, sheets, …

Section XVIII > Chapter 90 > Heading 9006

Explanatory notes

… ‑ Other cameras : 9006.53 ‑ ‑ For roll film of a width of 35 mm. 9006.59 ‑ ‑ Other               ‑ … which the exposure of a chemical based film (e.g., silver halide), plate or paper to the image or light from the … group include : (1)   Stereo cameras , equipped with two identical lenses and a shutter which exposes two images …

Section V > Chapter 26 > Heading 2603

Explanatory notes

… , basic copper carbonate. (c)   Bornite (or erubescite), sulphide of copper and iron. (d)   Bournonite , sulphide of copper, lead and antimony. (e)   Brochantite , … (ij)   Covellite , copper sulphide. (k)   Cuprite , cuprous oxide. (l)    Dioptase , copper silicate. (m)  Grey copper …

Section XIII > Chapter 69 > Heading 6909

Explanatory notes

… heading even if made of refractory materials (e.g., thread guides, grinding apparatus, etc., of sintered alumina). The … research or industrial use) such as crucibles and crucible lids, evaporating dishes, combustion boats, cupels; mortars and pestles; spoons for acids, spatulas; supports for filters and catalysts; filter …

Section IX > Chapter 44 > Heading 4410

Explanatory notes

… board is a flat product manufactured in various lengths, widths and thicknesses by pressing or extrusion. It is … obtained by the mechanical reduction of roundwood or wood residues. It may also be produced from other ligneous … of wood which are at least twice as long as they are wide. These strands are mixed with binders (usually …

Section VI > Chapter 29 > Heading 2929

Explanatory notes

… (crude MDI or polymeric MDI) ( heading 39.09 ). (2)   Isocyanides (carbylamines). (3)   Azides of carboxylic acids . (4)   Organic-substituted amide derivatives of …

Section III > Chapter 15 > Heading 1510

Explanatory notes

… oils obtained from olive pomace.  Olive pomace is the residual solids of olives after extraction of olive oils of … this heading may be crude or refined or otherwise treated, provided that no modification of the glyceridic structure …

Section XVI > Chapter 84 > Heading 8455

Explanatory notes

… mills consist of a number of such stands arranged either side by side, or slightly staggered, or tandem fashion (for … (except that certain finishing rollers may produce a simple ridged pattern). In many cases (e.g., for the operations … under (B) above) the rolling is not done over the full width of the rolls, but the working rollers have channels …

Section VI > Chapter 38 > Heading 3810

Explanatory notes

… for metal surfaces . These are preparations used to remove oxides, scale, rust or tarnish from the surface of metals, …         Pi ckling preparations are usually based on dilute acids (hydrochloric, sulphuric, hydrofluoric , nitric, … metal. Some, however, have a basis of alkalis (e.g., sodium hydroxide).           The heading does not include cleaning …