Harmonized System

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Section VI > Chapter 28 > Heading 2837

Explanatory notes

… Complex cyanides Subject to the exclusions mentioned in the introduction to this sub‑Chapter, this heading covers … cyanides. (A) CYANIDES Cyanides are the metal salts of hydrogen cyanide (hydrocyanic acid) (HCN) (heading 28.11). These salts are …

Section VI > Chapter 29 > Heading 2912

Explanatory notes

… with other oxygen function : 2912.41 ‑ ‑ Vanillin (4‑hydroxy‑3‑methoxybenzaldehyde) 2912.42 ‑ ‑ Ethylvanillin … oxidising primary alcohols; they contain the characteristic group : They are generally colourless liquids with a strong, penetrating odour; many aromatic aldehydes readily …

Section VI > Chapter 30 > Heading 3006

Explanatory notes

… contraceptive preparations based on hormones, on other products of heading 29.37 or on spermicides 3006.70 - Gel … tents (small lengths of algae, sometimes brown and with a rough grooved surface). They swell considerably on contact … (e.g., of silver, gutta-percha, paper) for filling dental root canals are also covered by this heading.         The …

Section VI > Chapter 34 > Heading 3402

Explanatory notes

… not chemically defined, which contain one or more hydrophilic or hydrophobic functional groups in such a proportion that, when mixed with water at a …

Section XVI > Chapter 85 > Heading 8507

Explanatory notes

… and supply it when required. A direct current is passed through the accumulator producing certain chemical changes … zinc. The electrodes may consist of simple plates, grids, rods, etc., or of grids or tubes covered or filled with a … the specific gravity of the electrolyte and so indicates roughly the degree of charge of the accumulator. Electric …

Section XVI > Chapter 85 > Heading 8517

Explanatory notes

… of voice, images or other data, including switching and routing apparatus 8517.69 - - Other               - Parts : … current or optical wave flowing in a wired network or by electro-magnetic waves in a wireless network. The signal may … of the push-button or keypad (tone) type or of the drum or rotary (pulse) type.         When separately presented, …

Section XVI > Chapter 84 > Heading 8448

Explanatory notes

… them with empty ones, and mobile appliances for setting up rows of empty reels. (2)   Warp beam stands or creels . … machines . (20) Stretching devices for drawing bench, roving benches or continuous ring threading machines, and … guides, design griffs, stretchers, grooves, pins and push rods. (24) Warping beams, divided beams and beam trays, …

Section VI > Chapter 28 > Heading 2830

Explanatory notes

… 2830.90 ‑ Other Subject to the exclusions mentioned in the introduction of this sub‑Chapter, this heading covers metal sulphides (salts of hydrogen sulphide (H 2 S) of heading 28.11). The old name “sulphydrates” (hydrosulphides) is sometimes applied to the acid sulphides. …

Section XV > Chapter 75 > Heading 7508

Explanatory notes

… 7508.90 - Other (A) ELECTROPLATING ANODES INCLUDING THOSE PRODUCED BY ELECTROLYSIS This group covers refined nickel … by electrolytic deposition. They may be cast, rolled, drawn, extruded or may be made from cathodes or … by basket anodes, i.e. unwrought forms such as nickel rondelles in titanium baskets (see the Explanatory Note to …

Section XVIII > Chapter 90 > Heading 9021

Explanatory notes

… This group further includes walking aids known as “walker-rollators”, which provide support for the users as they push … on a small metallic pin or pivot fitted into the prepared root), or “crowns” (fitted by means of artificial resin on … as headphones, amplifiers and the like used in conference rooms or by telephonists to improve the audibility of …

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