Harmonized System

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Section XVIII > Chapter 90 > Heading 9021

Explanatory notes

… of knitted, netted or crocheted materials, etc.). This group also includes crutches and crutch‑sticks. (It should, … pins for fixing (generally incisors and canines) or with a groove for sliding on to a metal ridge fixed to the dental … The heading excludes pieces of bone or skin for grafting, in sterile containers ( heading 30.01 ) and bone …

Section VI > Chapter 38 > Heading 3806

Explanatory notes

… ACIDS, OTHER THAN SALTS OF ROSIN ADDUCTS Salts of this group cover salts of rosin, of resin acids or of derivatives … the stumps of coniferous trees which have been left in the ground for a long time resulting in natural oxidation of … thick, varying in colour and quality (golden oils, white, green or brown oils) and have a smoky odour. They are …

Section V > Chapter 26

Explanatory notes

… physical or physico-chemical operations include crushing, grinding, magnetic separation, gravimetric separation, flotation, screening, grading, agglomeration of powders (e.g., by sintering or …

Section VI > Chapter 34 > Heading 3405

Explanatory notes

… soap. (3)   Metal, etc., polishing, finishing or fine-grinding products containing diamond powder or dust. (4)   … Scouring powders consisting of mixtures of very finely ground sand with sodium carbonate and soap. Scouring pastes … and artificial degras ( heading 15.22 ); other oils and greases for leather dressing ( Chapter 15 , headings 27.10 , …

Section III > Chapter 15 > Heading 1510

Explanatory notes

… free acidity, expressed as oleic acid, of not more than 0.3 grams per 100 grams and other characteristics corresponding to those … for this category.  This product has a light-yellow to green colour, a good odour and taste, and it’s fit for human …

Section V > Chapter 25 > Heading 2523

Explanatory notes

… as clinkers are obtained. These clinkers are subsequently ground to produce Portland cement, which may incorporate … covers aluminous cement, slag cement, supersulphate cement (ground blast furnace slag mixed with an accelerator and … and 2523.29, “Portland cement” means cement obtained by grinding Portland clinker with the possible addition of a …

Section XVII > Chapter 88 > Heading 8806

Explanatory notes

… is operated by an operator from another place (for example, ground, ship, another aircraft, or space) at all times … during the flight operation, or capable of flight which is programmed to be performed without the intervention by an … be designed to carry a payload or equipped with permanently integrated digital cameras or other equipment to be used for …

Section XIII > Chapter 69 > Heading 6904

Explanatory notes

… by further firing at a lower temperature, thus permitting a greater range of underglaze decoration. Biscuit porcelain is … (sometimes called Carrara porcelain) is a special, fine-grained, yellowish type containing more feldspar, and often … ( impermeable ) or semi-vitreous ware. It is usually grey or brownish because of impurities contained in the clay …

Section XI > Chapter 57 > Heading 5702

Explanatory notes

… Wilton and similar carpets . These have a strong, heavy ground fabric covered by a pile surface (i.e., a right side … polyamide, acrylic, viscose or a blend of these fibres. The ground fabric is usually of cotton, jute or polypropylene. … as an extra discontinuous warp held in place by the ground fabric. (4)     Flat weave carpets which have no …

Section VI > Chapter 28 > Heading 2804

Explanatory notes

… for nuclear reactors. (4)   Tellurium . A solid (specific gravity 6.2), amorphous or crystalline. It is a relatively … or, more often, in shapeless lumps.  It crystallises as grey needles with a metallic lustre. Silicon is one of the … a metal ( heading 81.10 ). Some of the non‑metals in this group (for example, silicon and selenium) may be doped with …