Harmonized System

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Section VI > Chapter 28 > Heading 2852

Explanatory notes

… by the wet process is shinier but does not resist the action of light so well. This salt is toxic. Natural mercury … operation (hatters’ aqua fortis ); for preparing mercurous acetate, etc. (b) Mercuric nitrate (Hg(NO 3 ) 2 ). Hydrated … Used in pyrotechnics. (14) Mercury lactate , salt of lactic acid. (15) Organo-inorganic mercury compounds. These may …

Section XV > Chapter 74 > Heading 7406

Explanatory notes

… other than cement copper (precipitated copper) which is a black powder of heading 74.01 . Subject to the provisions of … but a microscope is needed for true powders. The method of manufacture determines such characteristics as the particle … retain traces of greasy or waxy substances (e.g., stearic acid or paraffin wax) used in the course of their …

Section V > Chapter 25 > Heading 2508

Explanatory notes

… sedimentary origin with a basis of aluminium silicates. The characteristic properties of these products are plasticity, the faculty of hardening when fired and resistance to heat. … earth colours within the meaning of heading 25.30 . (b)   Activated clay ( heading 38.02 ). (c)   Special preparations …

Section VI > Chapter 28 > Heading 2821

Explanatory notes

… the purposes of assessing whether the 70 % limit has been reached, account must be taken of the total iron content expressed as … (1)   Ferrous hydroxide (Fe(OH) 2 ). Obtained by the action of an alkali base on a ferrous salt. White solid …

Section XV > Chapter 73 > Heading 7323

Explanatory notes

… hotels, restaurants, boarding‑houses, hospitals, canteens, barracks, etc. These articles may be cast, or of iron or … hoop, strip, wire, wire grill, wire cloth, etc., and may be manufactured by any process (moulding, forging, punching, … They may be fitted with lids, handles or other parts or accessories of other materials provided that they retain the …

Section XVI > Chapter 85 > Heading 8531

Explanatory notes

… electrically or electronic sound generator; they include factory sirens, air raid sirens, ships’ sirens, etc. (C)   … and the like . These are used (e.g., in offices, hotels and factories) for calling personnel, indicating where a certain … operate by various means, e.g. : (1) By electrical contacts which are operated by stepping on a certain part of the …

Section XVI > Chapter 85 > Heading 8539

Explanatory notes

… and reflector and a filament sealed within a gas‑filled or vacuum‑type lamp. (B) OTHER FILAMENT LAMPS, EXCLUDING … have valves for the removal of compounds resulting from the action of the gas on the electrodes; others may be vacuum …

Section XVIII > Chapter 90 > Heading 9028

Explanatory notes

… meters 9028.30 ‑ Electricity meters 9028.90 ‑ Parts and accessories These meters are generally fitted with a device … for bringing controlling, signalling, etc., appliances into action. (I) GAS OR LIQUID SUPPLY OR PRODUCTION METERS These … or supply meters, and standard meters (for checking the accuracy of ordinary meters). In addition to simple meters, …

Section XIII > Chapter 70 > Heading 7020

Explanatory notes

… other than glass, provided they retain the essential character of glass articles. The heading includes : (1)   … or other fused silica); absorption drums for hydrochloric acid and trickling columns. (2)   Articles for husbandry … for doors, cistern chains, etc.; pots for water colours; accessories for bird-cages (feeding or drinking troughs, …

Section III > Chapter 15 > Heading 1522

Explanatory notes

… an alkaline solution and the precipitation by sulphuric acid of the fatty hydroxyacids. These products are encountered commercially in the … in colour (brownish‑yellow, whitish, brownish‑green, etc.), according to the raw material from which the oils are …