Harmonized System

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Section XVIII > Chapter 90 > Heading 9031

Explanatory notes

… - For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or … and apparatus for measuring or detecting ionising radiations of heading 90.30 . (ij)   Automatic regulating or … etc.). These operate either by observing the cathode‑ray screen diagram resulting from magnetic variations, or by …

Section XVI > Chapter 84 > Heading 8412

Explanatory notes

… (A) REACTION ENGINES OTHER THAN TURBO-JETS (1)         Ram-jets.        This is a mechanically simple engine, which can function only on rapidly moving machines. It has no turbo-compressor, the …

Section XVI > Chapter 85 > Heading 8518

Explanatory notes

… audio‑frequency electric amplifiers of all kinds presented separately, regardless of the particular purpose for which … (e.g., telephone microphones, headphones and earphones, and radio receiver loudspeakers). The heading also covers … of electrical signals of frequencies falling within the range of the human ear. The great majority are based on …

Section II > Chapter 12 > Heading 1211

Explanatory notes

… 1211.20 ‑ Ginseng roots 1211.30 ‑ Coca leaf 1211.40 ‑ Poppy straw 1211.50 ‑ Ephedra 1211.60 ‑ Bark of African cherry ( Prunus africana ) … in pharmacy or medicine, or for insecticidal, fungicidal, parasiticidal or similar purposes. They may be in the form …

Section VI > Chapter 28 > Heading 2801

Explanatory notes

… 28.43 ), base metals ( Chapters 72 to 76 and 78 to 81 ) and radioactive chemical elements and isotopes ( heading 28.44 ) … Sb 51 Base metal (81.10). Argon................. Ar 18 Rare gas (28.04). Arsenic............... As 33 Non‑metal …

Section XIII > Chapter 70 > Heading 7019

Explanatory notes

… they are compatible with organic matrices . Glass wool (random oriented fibres) are glass products in which the filaments are randomly oriented, forming a bulky product, mostly used for … bumpers for motor vehicles, equipment for track vehicles, railway coaches or aircraft, home appliances, boat hulls, …

Section XVIII > Chapter 90 > Heading 9025

Explanatory notes

… thermometers (e.g., for measuring solar or terrestrial radiations), thermometers used in hydrography (e.g., … use with motor vehicles, to indicate the temperature of the radiator water, are usually of this type. (3)   Expansion or …

Section VI > Chapter 28 > Heading 2836

Explanatory notes

… this sub‑Chapter, this heading covers : (I)   Carbonates (neutral carbonates, hydrogencarbonates or bicarbonates, … in textile dyeing or printing; as a detergent for wool; an expectorant in medicine; in the manufacture of smelling … etc. (2)   Sodium carbonates . (a)  Disodium carbonate (neutral carbonate) (Na 2 CO 3 ). Improperly called …

Section VI > Chapter 28 > Heading 2841

Explanatory notes

… ‑ ‑ Other 2841.70 ‑ Molybdates 2841.80 ‑ Tungstates (wolframates) 2841.90 ‑ Other This heading covers the salts … Used as a mordant in dyeing (alkaline mordant); in the preparation of lakes; for sizing paper; as a filler for … the manufacture of glass, soap, special cements, polishing preparations and other aluminates. (d) Chromium aluminate . …

Section VI > Chapter 28 > Heading 2833

Explanatory notes

… tanning). The main products used for the latter purpose are rather unstable solutions of basic chromium sulphates … lutings, lakes, colours, etc. It is impervious to X‑rays and is therefore used (pure) in radiography.          Natural barium sulphate (barytes, …