Harmonized System

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Section VI > Chapter 28 > Heading 2805

Explanatory notes

… The five alkali metals are soft and rather light. They decompose cold water; they deteriorate in air, forming … sodamide, etc., the indigo industry, the manufacture of explosives (chemical primers and fuses), the polymerisation … gravity 1.9), which ignites on contact with air; the most readily oxidising metal; presented in sealed ampoules …

Section XII > Chapter 64 > Heading 6406

Explanatory notes

… of footwear; these parts may be of any materials except asbestos.         Parts of footwear may vary in shape … which may be worn inside the footwear : removable in-soles, hose protectors (of rubber, rubberised fabric, etc.) and … also excludes  : (a)   Welts in the length of leather or composition leather ( heading 42.05 ), of plastics ( Chapter …

Section VI > Chapter 28 > Heading 2849

Explanatory notes

… with another element more electropositive than carbon. Those known as acetylides are also classified in this … solid in the pure state, opaque and grey when impure. Decomposed by water to produce acetylene; used for the …

Section II > Chapter 8 > Heading 0805

Explanatory notes

… - C lementines 0805 .29 ‑ - Other 0805.40 ‑ Grapefruit and pomelos 0805.50 ‑ Lemons ( Citrus limon, Citrus limonum ) … contains a few varieties. -     Mediterranean ( Citrus deliciosa Tenore) , also known as Willowleaf. -     Common ( … inedible oranges having fallen soon after the tree has blossomed, gathered dry with a view, in particular, to …

Section VII > Chapter 39 > Heading 3913

Explanatory notes

… of gelling agents (e.g., calcium salts), retarders (e.g., phosphates, citrates), accelerators (e.g., organic acids), and regulators (e.g., sucrose, urea). Any such additions should not render the … varnishes which after application form a film resistant to atmospheric and chemical deterioration. (b) Rubber …

Section VI > Chapter 28 > Heading 2830

Explanatory notes

… (H 2 S) of heading 28.11). The old name “sulphydrates” (hydrosulphides) is sometimes applied to the acid sulphides. … and as a parasiticide. (b) Sodium hydrogen sulphide (hydrosulphide) (NaHS). Obtained by the action of hydrogen …

Section XV > Chapter 80

Explanatory notes

… this ore may occur either in veins or in alluvial deposits. The principal stages in the extraction are as … tin by various processes which can produce the metal in an almost completely pure condition. Tin is also recovered from … hammered, rolled or extruded. Tin is very resistant to atmospheric corrosion but is attacked by concentrated acids. …

Section VII > Chapter 40 > Heading 4008

Explanatory notes

… heading covers : (1)   Plates, sheets and strip (having any cross‑sectional dimension exceeding 5 mm) in the length, or … of this heading may be surface‑worked (e.g., printed, embossed, grooved, channelled, ribbed); they may also be … these textile materials are present merely for reinforcing purposes.        In this respect, unfigured, unbleached, …

Section VI > Chapter 38 > Heading 3802

Explanatory notes

… chemicals, etc.) in order to make them suitable for certain purposes, such as decolourising, gas or moisture adsorption, …

Section VI > Chapter 28 > Heading 2852

Explanatory notes

… whether or not chemically defined, other than amalgams. The most common compounds of mercury are listed below : (1) … ( yellow oxide ). These oxides are toxic and turn black on exposure to light. They are used in the preparation of … industry, etc. (b) Mercuric chloride (mercury dichloride, corrosive sublimate) (HgCl 2 ). Crystallises in prisms or …