Harmonized System

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Section XXI > Chapter 97 > Heading 9703

Explanatory notes

… works may be produced by various processes including the following : in one of these the artist carves the work … in other hard materials. In the latter process, the artist usually proceeds on the following lines : He begins by … as the artist has intervened at each stage with additional modelling, corrections to casts, and for the patina imparted …

Section VI > Chapter 35 > Heading 3504

Explanatory notes

… enzymes (pepsin, papain, pancreatin, etc.). They are usually white or yellowish powders and, being very hygroscopic, they are normally packed in airtight containers. Peptones may also be …

Section XIII > Chapter 70 > Heading 7020

Explanatory notes

… of heading 70.06, 70.09 or 70.14 , or of heading 94.05 , if illuminated). (4)   Glass inners for vacuum flasks or for … vessels of heading 96.17 . The inners of this heading are normally made of ordinary glass, or of glass with a low coefficient of expansion. They are generally more or less cylindrical and have double walls …

Section VI > Chapter 28 > Heading 2846

Explanatory notes

… from mixtures of the elements. This means that the heading will include mixtures of oxides or hydroxides of these … intentionally for special purposes and which, accordingly, fall in heading 38.24 . The heading also includes double or … sulphate and its hydrates, hydrated ceric sulphate, orange‑yellow prisms soluble in water) are used in photography as …

Section VI > Chapter 37 > Heading 3707

Explanatory notes

… photographic images visible (e.g., hydroquinone, catechol, pyrogallol, phenidone, p -N-methylaminophenolsulphate and their … subject to (A) and (B) below, flashlight materials , usually consisting of aluminium or magnesium, in powder, …

Section VI > Chapter 29 > Heading 2938

Explanatory notes

… - Other Glycosides occur mainly in the vegetable kingdom. Usually, under the action of acids, bases or enzymes, they … 29.40 are not considered to be glycosides. The most common naturally-occurring glycosides are the O-glycosides, in which the sugar moiety and aglycone normally are linked by an acetal function. However, there …

Section XI > Chapter 50 > Heading 5003

Explanatory notes

… and garnetted stock). This heading covers silk waste of all kinds, in the crude unworked state or at its various … process; badly stained or soiled cocoons whether or not still containing the chrysalis, etc. 2)   Blazes . These are … outer covering of the cocoon; these are first removed with small brushes and then cut away to leave that part of the …

Section XV > Chapter 79 > Heading 7901

Explanatory notes

… 79.01 ‑ Unwrought zinc.               ‑ Zinc, not alloyed : 7901.11 ‑ ‑ Containing by weight 99.99 % or more … by weight less than 99.99 % of zinc 7901.20 ‑ Zinc alloys This heading covers unwrought zinc in its different … above) to refined zinc, whether in blocks, plates, ingots, billets, slabs or similar forms or in pellets. The products …

Section XV > Chapter 75 > Heading 7504

Explanatory notes

… flakes. This heading covers nickel powders and flakes of all types, regardless of their intended use. Powders are … characteristics, the powders and flakes are used in the unalloyed state in plates for nickel‑cadmium batteries, in … agents for metal carbides, for the production of nickel alloys (e.g., alloy steels) or as catalysts. They are also …

Section VI > Chapter 29 > Heading 2916

Explanatory notes

… halides, peroxides, peroxyacids, esters and salts, as well as the halogenated, sulphonated, nitrated or nitrosated …