Harmonized System

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Section XIV > Chapter 71 > Heading 7110

Explanatory notes

… except aqua regia. It can be fabricated into bars, sheets, strip, tubes, wire and other semi-manufactured forms by … such as bushings for glass fibre production, crucibles, stirrers, etc.; in the chemical and petroleum industries as … lighters and for many other applications such as measuring standards, hair lines for optical instruments, etc. (B)  …

Section VI > Chapter 29 > Heading 2918

Explanatory notes

… acid.        The main salts are calcium (used in medicine), strontium, magnesium, zinc, antimony, iron and bismuth … Pentyl tartrates . (3)   Citric acid* . Found in the free state of citrus fruit juices; also obtained from the … of oil of wintergreen. An oily, colourless liquid with a strong persistent aromatic odour; used in medicine. (b) …

Section VI > Chapter 28 > Heading 2842

Explanatory notes

… are compounds of more or less unknown composition, very unstable, exploding at a slight shock or under the action of heat (for example, a spark). They constitute priming explosives and are used in the … deliquescent crystals. Used in the paper, textile, potato‑starch or paint industries. (4)     Chlorosalts , e.g., …

Section VI > Chapter 29 > Heading 2917

Explanatory notes

… their derivatives : 2917.11 - - Oxalic acid, its salts and esters 2917.12 - - Adipic acid, its salts and esters 2917.13 … (4)   Sebacic acid . White leaflets; used, inter alia , as stabiliser in plastics (in alkyd resins, maleic and other …

Section XVI > Chapter 84 > Heading 8411

Explanatory notes

… require any external source of heat as does, for example, a steam turbine. (A) TURBO-JETS A turbo-jet consists of a … from the turbine is converted to a high velocity gas stream by the nozzle. The reaction of this gas stream acting … turbines without a combustion chamber, comprising simply a stator and rotor and which use energy from gases provided by …

Section XX > Chapter 94 > Heading 9401

Explanatory notes

… electrical heating), settees, sofas, ottomans and the like, stools (such as piano stools, draughtsmen’s stools, typists’ stools, and dual purpose stool‑steps) , seats which incorporate a sound system and are …

Section VI > Chapter 29 > Heading 2922

Explanatory notes

… more than one kind of oxygen function, their ethers and esters; salts thereof : 2922.11 - - Monoethanolamine and its … more than one kind of oxygen function, their ethers and esters; salts thereof : 2922.21 - - … amines and their salts of this heading diluted to standard strengths for the production of azo-dyes are also …

Section VI > Chapter 28 > Heading 2844

Explanatory notes

… example, natural chlorine, in both the free and combined states, is always made up of a mixture of 75.4 % chlorine 35 … possess the phenomenon of radioactivity (described below); stable isotopes, on the other hand, are classified in …

Section XVIII > Chapter 90 > Heading 9022

Explanatory notes

… transformers, rectifiers, etc. In most other respects, the structural characteristics of X‑ray apparatus vary according … the varying densities of the shadow image represent the state of the organ. (2) Radiographic apparatus . After leaving the body under examination, the X‑rays strike a photographic plate or film and are recorded …

Section VI > Chapter 29 > Heading 2932

Explanatory notes

… an unfused furan ring (whether or not hydrogenated) in the structure : 2932.11 - - Tetrahydrofuran 2932.12 - - … (see Note 7 to this Chapter).        Lactones are fairly stable compounds, but are characterized by the ease with … synthetic resins. Used in preparations for removing paint stains, and in the petroleum industries. (k)   …

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