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Harmonized System
Section VI > Chapter 28 > Heading 2831
… Dithionites and sulphoxylates. …
Explanatory notes
… 28.31 ‑ Dithionites and sulphoxylates. 2831.10 ‑ Of sodium 2831.90 ‑ Other Dithionites (hydrosulphites) are the salts of dithionous (“hydrosulphurous”) acid (H 2 S 2 O 4 ) which has not been isolated …Section XVIII > Chapter 90 > Heading 9022
… Apparatus based on the use of X-rays or of alpha, beta, gamma or other ionising radiations, whether or …
Explanatory notes
… leaving the body under examination, the X‑rays strike a photographic plate or film and are recorded thereon. The … monitoring the contents of packages containing any product (pharmaceutical products, foodstuffs, sporting gun …Section VI > Chapter 28 > Heading 2808
… Nitric acid; sulphonitric acids. …
Explanatory notes
… 28.08 ‑ Nitric acid; sulphonitric acids. (A) NITRIC ACID Nitric acid (HNO 3 ) is … oxide oxidised. It can also be prepared by the action of sulphuric acid (alone or associated with sodium disulphate) on natural sodium nitrate; the impurities …Section XXI > Chapter 97 > Heading 9702
Explanatory notes
… material employed by him, but excluding any mechanical or photomechanical process (see Note 3 to this Chapter). … , they satisfy the other conditions of the preceding paragraph, the heading includes, as original works, … other hand, evidence of the use of half‑tone screens (in photogravure and heliogravure) and, very often, the absence …Section VI > Chapter 28 > Heading 2806
… Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. …
Explanatory notes
… 28.06 ‑ Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. 2806.10 ‑ Hydrogen chloride (hydrochloric acid) 2806.20 ‑ Chlorosulphuric acid (A) HYDROGEN CHLORIDE (HYDROCHLORIC ACID) …Section VI > Chapter 29 > Heading 2921 > 2921.4 > 2921.45
… 1-Naphthylamine (alpha-naphthylamine), 2-naphthylamine (beta-naphthylamine) and …
Section VI > Chapter 29 > Heading 2920 > 2920.1
… Thiophosphoric esters (phosphorothioates) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives …
Section X > Chapter 47 > Heading 4704
… Chemical wood pulp, sulphite, other than dissolving grades. …
Explanatory notes
… 47.04 ‑ Chemical wood pulp, sulphite, other than dissolving grades. - … name from the various “sulphite” chemicals, such as calcium bisulphite (calcium hydrogen sulphite), magnesium bisulphite … Note to heading 47.02). The solution also contains free sulphur dioxide. The process is used extensively for the …Section VI > Chapter 30 > Heading 3006
… Pharmaceutical goods specified in Note 4 to this Chapter. …
Explanatory notes
… 30.06 - Pharmaceutical goods specified in Note 4 to this Chapter.(+) … lubricant for parts of the body for surgical operations or physical examinations or as a coupling agent between the … - Appliances identifiable for ostomy use 3006.92 - - Waste pharmaceuticals 3006.93 - - Placebos and blinded (or …Section VI > Chapter 31 > Heading 3105 > 3105.30
… Diammonium hydrogenorthophosphate (diammonium phosphate) …