Harmonized System

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Section VI > Chapter 28 > Heading 2811

Explanatory notes

… acids and anhydrides and other oxides of non‑metals. The most important are listed below according to their non‑metal … In the anhydrous state, hydrogen fluoride is an extremely hygroscopic liquid (boiling point 18/20 °C); it fumes in a humid atmosphere. In the anhydrous state and in concentrated …

Section VI > Chapter 35 > Heading 3507

Explanatory notes

… in ascorbate oxidase, zinc in human placental alkaline phosphatase) or a complex organic molecule called a coenzyme (e.g., thiamine diphosphate in pyruvate decarboxylase, pyridoxal phosphate in …

Section XIII > Chapter 70 > Heading 7019

Explanatory notes

…               - Mechanically bonded fabrics : 7019.61 - - Closed woven fabrics of rovings 7019.62 - - Other closed … Note 4 to this Chapter) made up in various forms, including those glass fibre articles excluded from other headings by …

Section XVI > Chapter 85 > Heading 8542

Explanatory notes

… circuits with either silicon based sensors, actuators, oscillators, resonators and combinations thereof, or one or … definition of silicon based sensors, actuators, resonators, oscillators and combinations thereof are excluded from the … output in relation with silicon-based sensors, actuators, oscillators, resonators.         They can be used in a …

Section VI > Chapter 28 > Heading 2804

Explanatory notes

… less than 99.99 % of silicon 2804.69 - - Other 2804.70 - Phosphorus 2804.80 - Arsenic 2804.90 - Selenium (A) HYDROGEN … used, e.g., for inflating balloons). (2)   Neon (gives a rosy orange‑yellow light or, combined with mercury vapour, … (a colourless and odourless gas used to provide an inert atmosphere in electric lamp bulbs). (4)   Krypton (same use …

Section XVIII > Chapter 90 > Heading 9006

Explanatory notes

… organs; comparison cameras for forensic or criminological purposes 9006.40 ‑ Instant print cameras               ‑ … lenses, viewfinders, etc.). Photographic cameras are those in which the exposure of a chemical based film (e.g., … combining with other apparatus (for example, cathode‑ray oscilloscopes) for recording transitory and ultra‑rapid …

Section VI > Chapter 36 > Heading 3601

Explanatory notes

… which support combustion. They may also contain ingredients whose purpose is to control the rate of combustion. The … the colour of which varies from black to brown, is slightly hygroscopic and is used as a sporting powder and as a … (a)  Smokeless powders       These are based on nitrocellulose (cellulose nitrates), usually gun-cotton or …

Section XVIII > Chapter 90 > Heading 9025

Explanatory notes

… varied or additional weights added. Some hydrometers (e.g., those used to determine the strength of the acid in accumulators) are enclosed in a glass syringe. Other types are combined with a … a solid substance (clay, for instance). These consist of an oscillating lever, one arm of which moves before a dial, the …

Section VI > Chapter 29 > Heading 2941

Explanatory notes

… as well as antibacterials produced by chemical synthesis. Those antibacterials produced by chemical synthesis that …

Section VI > Chapter 28 > Heading 2844

Explanatory notes

… Radioactive elements and isotopes and compounds other than those of subheading 2844.10, 2844.20 or 2844.30; alloys, … for the purposes of Note 6. This heading covers only those isotopes which possess the phenomenon of radioactivity … AND COMPOUNDS THEREOF; MIXTURES AND RESIDUES CONTAINING THOSE SUBSTANCES (A)  Fissile and fertile chemical elements …