Harmonized System

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Section XVI > Chapter 85 > Heading 8539

Explanatory notes

… or quartz containers, of various shapes, containing the necessary elements for converting electrical energy into … are of various shapes, e.g., spherical (with or without a neck); pear or onion shaped; flame shaped; tubular (straight … (1)   Gas discharge tubes containing gases such as neon, helium, argon, nitrogen or carbon dioxide, including …

Section VI > Chapter 30 > Heading 3004

Explanatory notes

… containing antibiotics              - Other, containing hormones or other products of heading 29.37 : 3004.31 - - … alkaloids or derivatives thereof : 3004.41 - - Containing ephedrine or its salts 3004.42 - - Containing … these products provide a crystalline matrix on which new bone can grow as the matrix is resorbed. However, the …

Section XVI > Chapter 85 > Heading 8506

Explanatory notes

… 85.06 ‑ Primary cells and primary batteries (+) . 8506.10 - Manganese dioxide 8506.30 - Mercuric oxide 8506.40 - Silver … primary cells and primary batteries 8506.90 ‑ Parts These generate electrical energy by means of chemical reactions. A … solutions.  In air-zinc primary cells, an alkaline or neutral electrolyte is generally used.  The zinc is used as …

Section XVI > Chapter 84 > Heading 8455

Explanatory notes

… parts (I) ROLLING MILLS Rolling mills are metal working machines consisting essentially of a system of rollers … may be plain, or with grooves of various shapes to form the necessary passes. Each roll ends in necks, often specially shaped for mounting in the housings …

Section XVIII > Chapter 90 > Heading 9013

Explanatory notes

… sights for fitting to arms; periscopes; telescopes designed to form parts of machines, appliances, instruments or apparatus of this … includes : (1)   Lasers . These produce or amplify electro‑magnetic radiation in the wavelength range between 1 …

Section VI > Chapter 28 > Heading 2833

Explanatory notes

… ‑ ‑ Other               ‑ Other sulphates : 2833.21 ‑ ‑ Of magnesium 2833.22 ‑ ‑ Of aluminium 2833.24 ‑ ‑ Of nickel … . (1)   Sodium sulphates include : (a)  Disodium sulphate (neutral sulphate) (Na 2 SO 4 ). Occurs in the anhydrous or … carbonate or roasted blende. White vitreous masses or in needle‑shaped crystals. Used for lessening the natural …

Section XVI > Chapter 85 > Heading 8504

Explanatory notes

… cases (e.g., radio‑frequency transformers) there may be no magnetic core, or the core may be of agglomerated iron dust, ferrite, etc. An AC in one coil (the primary circuit) induces an AC usually at … usually the mains, into the direct high‑tension current necessary for feeding the equipment concerned by means of …

Section VI > Chapter 38 > Heading 3801

Explanatory notes

… prepared in an electric furnace by heating a mixture of finely ground coke (normally petroleum coke, but sometimes … of not more than one part per million, and a total thermal neutrons absorption microscopic cross‑section of not more … endless electrode for use in the furnaces, which no longer needs to be stopped to change worn‑out pre‑fabricated …

Section III > Chapter 15 > Heading 1501

Explanatory notes

… pig fat 1501.90 - Other The fats of this heading may be obtained by any process, e.g., by rendering, pressing or … In the dry rendering process a portion of the fat is drained off by application of high temperature; another … These fats may be crude or refined. Refining is effected by neutralisation, by treatment with Fuller’s earth, …

Section XVIII > Chapter 90 > Heading 9026

Explanatory notes

… thermostatically controlled valves ( heading 84.81 ); (b) Anemometers (wind gauges) and hydrological level gauges ( … Bourdon tube, diaphragm, bellows, semiconductors) moving a needle or a pointer. In some devices the variations are … the molecules of the residual gas are attracted towards a negative plate. Thermionic vacuum tubes (triodes) presented …