Harmonized System

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Section VI > Chapter 38 > Heading 3801

Explanatory notes

… semi‑colloidal graphite 3801.30 ‑ Carbonaceous pastes for electrodes and similar pastes for furnace linings 3801.90 ‑ … to the graphitisation process.         In this way, a product is obtained with an apparent specific gravity of … (not exceeding 20 parts per million), and is used as a moderator or reflector in nuclear reactors. (b) Impregnated …

Section XV > Chapter 81 > Heading 8112

Explanatory notes

… stone (e.g., emerald) ( Chapter 71 ). The main commercial methods of extracting this metal are : (1)   High … barium or other fluorides. A graphite crucible is used as anode and the metal is collected on a water‑cooled iron cathode. (2)   Reduction of beryllium fluoride using …

Section VI > Chapter 29 > Heading 2932

Explanatory notes

… acid. Colourless liquid with a characteristic aromatic odour; it turns yellow and then brown when exposed to air. … galactopyranoside). Odorless, white to almost white crystalline powder. … the dried unexpanded flower heads of Artemisia cina . Odourless, colourless crystals; a fairly energetic vermifuge …

Section VI > Chapter 29 > Heading 2933

Explanatory notes

… * . Crystalline powder or flakes, colourless, odourless. Used in medicine as an anti-pyretic and … or faintly yellow liquid with a strong, disagreeable odour. Used in organic synthesis, in the rubber industry, in …

Section XV > Chapter 79

Explanatory notes

… is first concentrated and is then roasted or calcined to produce zinc oxide (in the case of the sulphide and … used directly for galvanising, or may be refined by various methods.        Some impure metal is also deposited in the … fine powder known as zinc dust or blue powder.        A modern modification of the process is based on the …

Section XVI > Chapter 84 > Heading 8443

Section XVI > Chapter 84 > Heading 8451

Explanatory notes

… them and dried, as well as festoon loop washers for piece goods.        This heading covers industrial washing … used in finishing or to remove sizing from the manufactured goods. (2)   Wringers and mangles . (3)   Shaker‑tumblers … to, adapted for dealing with particular types of textile goods (e.g., yarns in hanks or skeins or in balls, on …

Section IV > Chapter 20 > Heading 2009

Explanatory notes

… this last process being used also for the sterilization of products. (b)   Filtration , often by means of filter plates … (e)   Sterilisation , to prevent fermentation. Various methods may be employed, for example, pasteurisation … or “flash”), electric sterilisation in machines fitted with electrodes, sterilisation by filtration, preservation under …

Section VI > Chapter 29 > Heading 2907

Explanatory notes

… tars or by synthesis. White crystals, with a characteristic odour, which turn reddish when exposed to light, or may be in solution. It is an antiseptic product used in pharmacy. It is also used in the manufacture … scales or in a shining white crystalline powder, light and odourless; it readily turns brown in contact with air and …

Section VI > Chapter 29 > Heading 2909

Explanatory notes

… but others are volatile liquids with a characteristic odour of ether; the higher members are liquids or sometimes … refractive liquid, with a characteristic burning odour; extremely volatile and very inflammable. Used as an … ) (methyl phenyl ether). Colourless liquid with a pleasant odour; used in organic synthesis (e.g., synthetic perfumes) …