Harmonized System

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Section VI > Chapter 29 > Heading 2932

Explanatory notes

… a characteristic aromatic odour; it turns yellow and then brown when exposed to air. Used in the purification of …

Section VI > Chapter 29 > Heading 2918

Explanatory notes

… These two functions may each react according to their own nature, hence as alcohols, these compounds may give … pharmaceutical. The industrial acid ranges from yellow to brown in colour and has a disagreeable, very acid odour. The …

Section XVIII > Chapter 90 > Heading 9001

Explanatory notes

… of glass or plastics of different refractive indices. Those drawn from glass have a very thin coating of plastics, … to be of an exact diameter, the edges are ground; this is known as the centring and edging operation. This heading …

Section IV > Chapter 17 > Heading 1702

Explanatory notes

… principal sugars of this heading are : (1)   Lactose (also known as milk sugar) (C 12 H 22 O 11 ), which occurs in milk …

Section XV > Chapter 72 > Heading 7208

Explanatory notes

… solution), patina finishing, blueing (blue annealing), browning or bronzing (by various techniques), which also … those of manganese, iron and zinc; this process is known as parkerising or bonderising, depending on the period …

Section XV > Chapter 74

Section VI > Chapter 34 > Heading 3402

Explanatory notes

… emulsifying, wetting), which is why they are usually known as “surfactants”. However, products which are not … preparations based on surface-active agents are also known as detergents . This type of preparation is used for …

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