Harmonized System

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Section VI > Chapter 28 > Heading 2834

Explanatory notes

… ‑ Nitrites               ‑ Nitrates : 2834.21 ‑ ‑ Of potassium 2834.29 ‑ ‑ Other (A) NITRITES Subject to the … to this sub‑Chapter, this heading includes nitrites, metal salts of nitrous acid (HNO 2 ) (heading 28.11). (1)   … matches, of explosives and of certain colouring matters; in tanning; in photography and lithography; for preparing lead …

Section VI > Chapter 28 > Heading 2830

Explanatory notes

… the introduction of this sub‑Chapter, this heading covers metal sulphides (salts of hydrogen sulphide (H 2 S) of … sometimes applied to the acid sulphides. Sulphides of non‑metals are excluded ( heading 28.13 ). (1)   Sodium … of ores by sulphiding. Also used as a hair‑remover (in tanning or in toilet preparations), and as a parasiticide. …

Section VI > Chapter 32 > Heading 3206

Explanatory notes

…               - Pigments and preparations based on titanium dioxide : 3206.11 - - Containing 80 % or more by … by the calcination of a mixture of bauxite and coal tar pitch or grease. (8)   Coloured earths brightened with … ( heading 25.24 ). (k)     Mica ( heading 25.25 ). (l)      Talc ( heading 25.26 ). (m)    Calcite (Iceland spar) ( …

Section VI > Chapter 29 > Heading 2932

Explanatory notes

… oxygen hetero-atom(s) only (+).               - Compounds containing an unfused furan ring (whether or not … Found in light oils of the distillation of coal tar. A colourless liquid, used for the manufacture of … In such cases, the additional hetero-atom should be taken into account in determining the classification. Thus, …

Section VI > Chapter 29 > Heading 2905

Explanatory notes

… alcohol) and propan-2-ol (isopropyl alcohol) 2905.13 - - Butan-1-ol ( n -butyl alcohol) 2905.14 - - Other butanols 2905.16 - - Octanol (octyl alcohol) and isomers … or synthetically from propylene.       Glycerol has a sweet taste. It is in general colourless and odourless, but may …

Section XVIII > Chapter 90 > Heading 9027

Explanatory notes

… which the plane of polarisation of a ray of light is rotated in passing through an optically active substance. … and absorption spectra. They consist essentially of an adjustable slit collimator (through which the beam of light to be … cell. In some instruments of this type a paper tape is used with a reagent changing its colour after …

Section VI > Chapter 29 > Heading 2903

Explanatory notes

… (HFC-152) and 1,1-difluoroethane (HFC-152a) 2903.44 - - Pentafluoroethane (HFC-125), 1,1,1-trifluoroethane … (HFC-152), 1,1-difluoroethane (HFC-152a), pentafluoroethane (HFC-125), 1,1,1-trifluoroethane … (CFC-113), dichlorotetrafluoroethanes (CFC-114) and chloropentafluoroethanes (CFC-115) is controlled by the Montreal …

Section VI > Chapter 38 > Heading 3809

Explanatory notes

… specified or included. 3809.10 - With a basis of amylaceous substances               - Other : 3809.91 - - Of a kind … or acetates, potassium dichromate, antimony potassium tartrate) or tannin. (But see exclusion (d) at the end of this …

Section IV > Chapter 21 > Heading 2106

Explanatory notes

… The heading includes, inter alia : (1) Powders for table creams, jellies, ice creams or similar preparations, … vegetable extracts of heading 13.02 with lactic acid, tartaric acid, citric acid, phosphoric acid, preserving … more odoriferous substances ( heading 33.02 ). (8)   Edible tablets with a basis of natural or artificial perfumes …

Section VI > Chapter 28 > Heading 2852

Explanatory notes

… : (1) Mercury oxides . Mercuric oxide (HgO) is the most important oxide of mercury. It can exist as a bright-red crystalline powder ( red oxide ) or as a denser … . (17) Mercury compounds, not chemically defined ( tannates of mercury, albuminates of mercury, nucleoproteids …

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