Harmonized System

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Section VI > Chapter 28 > Heading 2809

Explanatory notes

… phosphorus extracted from natural phosphates. It is a very corrosive white powder, absorbs water avidly, and is transported … or vitreous form. These three varieties mixed together give “phosphoric snow”, classified here. (B) PHOSPHORIC ACID …

Section XVI > Chapter 84 > Heading 8473

Explanatory notes

… a particular operation, or to perform a particular service relative to the main function of the machine, or to increase its … machines, etc. (8)   Diskettes for cleaning disk drives in ADP machines, etc. (9)   Electronic memory modules …

Section XVI > Chapter 85 > Heading 8533

Explanatory notes

… . These are conductors whose function is to provide a given electrical resistance in a circuit (e.g., to limit the … or metal oxide film. They may be obtained in the form of individual components by a printing process. Certain … resistors  : depending on temperature (thermistors) with a negative or positive temperature coefficient (usually …

Section XI > Chapter 58 > Heading 5808

Explanatory notes

… may be interlaced along the length of the fabric either to give firmness to the edge, or in any ordered sequence to … edging or ornamenting certain articles of apparel (e.g., decorative trim and piping) or furnishing articles (e.g., … tape, provided that the hooks and eyes and press fasteners give the goods their essential character ( heading 83.08 or …

Section VI > Chapter 38 > Heading 3822

Explanatory notes

… that they are used for in vitro , rather than for in vivo , applications.  Prepared laboratory reagents include … corpuscles or of the blood serum. In addition to the active principle(s), they may contain substances to strengthen …

Section VI > Chapter 28 > Heading 2826

Explanatory notes

… In the liquid state or in solution, they are electrolytes giving a metal (or a metal ion) at the cathode. In neutral … salts of the acids classified in sub‑Chapter II (acids derived from non‑metals) or in sub‑Chapter IV (acid‑function …

Section VIII > Chapter 41

Explanatory notes

… collagen.  This is an irreversible chemical reaction, which gives the resultant product stability against heat, light or … crusting procedure, a fat-liquor or oil may be added to give the crust some lubrication and flexibility, and the hide …

Section XVIII > Chapter 91

Section VI > Chapter 28 > Heading 2849

Explanatory notes

… and is nearly as hard as diamond but rather brittle. Used extensively as an abrasive and as a refractory product; mixed with graphite it … electric furnace; hard brilliant blackish crystals. Used as abrasive, for boring rocks, in the manufacture of dies or …

Section XV > Chapter 82 > Heading 8202

Explanatory notes

… saws; saws permanently combined with a mitre box, the saw giving the whole article its essential character. (B)   Saw … and discs (with a central hole for fixing the disc to the driving shaft) are regarded as such blanks. These articles … (black diamonds in particular) or, in some cases, with abrasive powders. In some saws the teeth may be replaced by …