Harmonized System

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Section VI > Chapter 28 > Heading 2836

Explanatory notes

… bicarbonate) 2836.40 ‑ Potassium carbonates 2836.50 ‑ Calcium carbonate 2836.60 ‑ Barium carbonate               ‑ … in medicine and in oenology (anti‑acid). (4)   Precipitated calcium carbonate . Precipitated calcium carbonate (CaCO 3 ) included in this heading results …

Section VII > Chapter 40 > Heading 4003

Explanatory notes

… articles, especially tyres, or from waste or scrap, of vulcanised rubber, by softening (“devulcanising”) the rubber and removing some of the unwanted …

Section V > Chapter 26 > Heading 2612

Explanatory notes

… are : (a)   Autunite, hydrated phosphate of uranium and calcium. (b)   Brannerite, uranium titanate. (c)   … and uraninite, saline uranium oxides. (h)   Torbernite (or chalcolite), hydrated phosphate of uranium and copper. … (ij)   Tyuyamunite, hydrated vanadate of uranium and calcium. (k)   Uranophane , calcium‑uranium silicate. (l)    …

Section VI > Chapter 38 > Heading 3807

Explanatory notes

… acid, methanol, acetone, a little furfuraldehyde and allyl alcohol. This heading also covers vegetable pitch of all … odour usually containing 70 to 90 % methanol (methyl alcohol) with varying proportions of acetone and other … 20 %), as well as other impurities (methyl acetate, higher alcohols, tarry substances, etc.). Certain types of wood …

Section VII > Chapter 39 > Heading 3907

Section VI > Chapter 29 > Heading 2915

Section V > Chapter 27 > Heading 2713

Explanatory notes

… minerals.               - Petroleum coke : 2713.11 - - Not calcined 2713.12 - - Calcined 2713.20 - Petroleum bitumen 2713.90 - Other …

Section VI > Chapter 33 > Heading 3301

Explanatory notes

… They are generally of complex composition and contain alcohols, aldehydes, ketones, phenols, esters, ethers and …

Section VI > Chapter 28 > Heading 2811

Explanatory notes

… (HF). Obtained by the action of sulphuric acid on natural calcium fluoride (fluorite) or on cryolite. It is purified … (particularly iron pyrites), or by roasting natural calcium sulphate (e.g., anhydrite) with clay and coke. It is …

Section XX > Chapter 96 > Heading 9609

Explanatory notes

… (3)   Prepared chalks , usually made with a basis of calcium sulphate or of calcium sulphate and calcium carbonate, sometimes mixed with … matter. (4)   Drawing charcoals , obtained usually by calcining spindle‑tree wood. (5)   Crayons and pastels , …

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