Harmonized System

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Section VI > Chapter 28 > Heading 2814

Explanatory notes

… react only with alkaline or other bases to form salts, while another more common class (amphoteric oxides) can … heading 28.47 (hydrogen peroxide), or heading 28.53 (distilled and conductivity water and water of similar purity, including water treated with ion‑exchange …

Section VI > Chapter 28 > Heading 2815

Explanatory notes

… for example, by causticising sodium carbonate with milk of lime or by electrolysing sodium chloride. It may be … processes ( heading 38.04 ); from these lyes the tall oil of heading 38.03  can be obtained and sodium hydroxide … POTASH) Potassium hydroxide (caustic potash) (KOH) is very similar to the sodium hydroxide described above. It must be …

Section VI > Chapter 28 > Heading 2818

Explanatory notes

… of refractory conglomerates (such as mullite and sillimanite, mixtures of corundum with pure refractory clay and with anhydrous aluminium silicates, respectively) or of laboratory utensils and in the electrical industry. (B) ALUMINIUM …

Section VI > Chapter 29 > Heading 2916

Explanatory notes

… * . Colourless liquid with acrid odour. Polymerises readily; monomer for polyacrylic acids and other acrylic … (3)   Oleic acid (C 18 H 34 O 2 ). Found in fats and oils as a glyceride. A colourless odourless liquid; … in the rubber and plastics industries, for bleaching oils, fats, flours, etc. (b) Benzoyl chloride (C 6 H 5 …

Section VII > Chapter 40 > Heading 4010

Explanatory notes

… Reinforced only with metal 4010.12 - - Reinforced only with textile materials 4010.19 - - Other               - … belts and belting, wholly of vulcanised rubber, or of textile fabric impregnated, coated, covered or laminated … of V-belts or belting. Synchronous belts (see illustration) are designed to transmit power while …

Section XVIII > Chapter 91 > Heading 9102

Explanatory notes

… operated, whether or not incorporating a stop-watch facility : 9102.11 ‑ ‑ With mechanical display only 9102.12 … sports watches (e.g., watches for skin divers, with built‑in depth indicator); Braille watches. Chronometer watches are high precision …

Section XV > Chapter 80

Explanatory notes

… can also produce very pure tin. * *    * Pure tin is silvery‑white and very shiny. It is not very ductile, but is malleable, easily melted and soft (although harder than lead). It can …

Section XVI > Chapter 85 > Heading 8545

Explanatory notes

… Certain types may be pierced with holes or grooved to facilitate the removal of gases formed on them during use. … carefully machined to tolerances of a few hundredths of a millimetre. They can therefore be indentified by their … in Explanatory Note to heading 38.01, or may contain silver.        This heading does not , however, include …

Section XVIII > Chapter 90 > Heading 9026

Section XV > Chapter 72 > Heading 7207

Explanatory notes

… given them a rough appearance. The heading covers blooms, billets, rounds, slabs, sheet bars, pieces roughly shaped by … by hot‑rolling or forging the ingots, puddled bars or pilings classified in heading 72.06. They are semi‑finished …