Harmonized System

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Section XVIII > Chapter 90 > Heading 9006

Explanatory notes

… a watch movement designed to permit a series of shots to be taken at regular intervals. This type also includes cameras … of two cameras, interconnected and fixed on a tripod, for taking photographs simultaneously. These cameras are mainly …

Section VI > Chapter 28 > Heading 2837

Explanatory notes

… and complex cyanides. (A) CYANIDES Cyanides are the metal salts of hydrogen cyanide (hydrocyanic acid) (HCN) … salts are very poisonous. (1)   Sodium cyanide (NaCN). Obtained by the action of coke or hydrocarbon gases and … sodium and gaseous ammonia. White powder, plates or paste, crystalline, hygroscopic, very soluble in water and with an …

Section VI > Chapter 29 > Heading 2921

Explanatory notes

… amines, amides, imides, but does not cover compounds containing nitro or nitroso groups as the only nitrogen … in a tertiary amine Nitrosoamines, which may react in the tautomeric form of quinoneimine oximes, are included in this … odour; used for preparing organic dyes and in the tanning industry, etc. (2) Dimethylamine ((CH 3 ) 2 NH), …

Section XVIII > Chapter 90 > Heading 9015

Explanatory notes

… 9015.10 ‑ Rangefinders 9015.20 ‑ Theodolites and tachymeters (tacheometers) 9015.30 ‑ Levels 9015.40 ‑ Photogrammetrical … heliostats for trigonometrical survey, etc. (4)   Plane tables, land chains and other special measures for surveying …

Section VI > Chapter 28 > Heading 2829

Explanatory notes

… bromates and perbromates, and iodates and periodates of metals. (A) CHLORATES This group covers the salts of chloric … 3 ) (heading 28.11). (1)   Sodium chlorate (NaClO 3 ). Obtained by electrolysing an aqueous solution of sodium chloride. Shiny colourless crystals (tablets); very soluble in water; readily gives off its …

Section VII > Chapter 39 > Heading 3913

Explanatory notes

… acid , a poly(uronic acid), is extracted from brown algae ( Phaeophyta ) by maceration in an alkaline solution. It may … extract with a mineral acid or by treating the extract to obtain an impure calcium alginate which on treatment with a … acid is insoluble in water but its ammonium and alkali metal salts dissolve readily in cold water to form viscous …

Section VI > Chapter 29 > Heading 2924

Explanatory notes

… Ureines and their derivatives; salts thereof 2924.23 - - 2-Acetamidobenzoic acid (N-acetylanthranilic acid) and its … acids - heading 29.29 ). Amides are compounds which contain the following characteristic groups : (–CONH 2 ) … amine group. These amides and their salts, diluted to standard strengths for the production of azo dyes, are also …

Section XVI > Chapter 84 > Heading 8486

Explanatory notes

… furnaces for doping the wafers with impurities. (2)   Crystal growers and pullers for the production of extremely … a thermochemical vapor-phase reaction.  Operations may take place at atmospheric or low pressure (LPCVD) and may … the film is generated by bombarding the source material (target) with ions.  (d) Molecular Beam Epitaxy (MBE) …

Section VI > Chapter 29 > Heading 2914

Explanatory notes

… other oxygen function : 2914.11 ‑ ‑ Acetone 2914.12 ‑ ‑ Butanone (methyl ethyl ketone) 2914.13 ‑ ‑ … other oxygen function” means ketones and quinones which contain also one or more of the oxygen functions referred to … (methyl, ethyl, propyl, phenyl, etc.). Ketones may have two tautomeric forms, the true ketonic form (-CO-) and the …

Section XI > Chapter 56 > Heading 5603

Explanatory notes

… impregnation with an adhesive binder such as rubber, gum, starch, glue or plastics, in solution or emulsion, by heat … the nonwoven. The heading includes, inter alia , adhesive tape consisting of a nonwoven coated with an adhesive of … can be seen with the naked eye with no account being taken of any resulting change of colour. (b)   Plates, …