Harmonized System
Section VI > Chapter 36 > Heading 3602
Explanatory notes
… powders. This heading covers mixtures of chemical substances the combustion of which produces a more violent … compositions , which are much more sensitive in the dry state to shock and friction than the explosives of the types … based mainly on lead azide or the trinitroresorcinate (or styphnate) of lead, and tetrazene. These explosives are …Section VI > Chapter 29 > Heading 2924
Explanatory notes
… characteristic groups : (–CONH 2 ) ((–CO) 2 NH) ((–CO) 3 N) Primary amide Secondary amide Tertiary amide The hydrogen of the (–NH 2 ) or ( NH) groups may be substituted by alkyl or aryl radicals, in which case the … amine group. These amides and their salts, diluted to standard strengths for the production of azo dyes, are also …Section VI > Chapter 30 > Heading 3001
… uses; heparin and its salts; other human or animal substances prepared for therapeutic or prophylactic uses, …
Explanatory notes
… uses; heparin and its salts; other human or animal substances prepared for therapeutic or prophylactic uses, … the brain, spinal cord, liver, kidneys, spleen, pancreas, mammary glands, testes, ovaries), dried, whether or not … suitable for permanent grafting or implantation, put up in sterile packings which may bear indications as to method of …Section VII > Chapter 39 > Heading 3913
… of natural rubber), not elsewhere specified or included, in primary forms. …
Explanatory notes
… alginates. Water‑soluble alginates are used as thickeners, stabilisers, gelling and film‑forming agents in, for … may contain preservatives (e.g., sodium benzoate) and be standardised by the addition of gelling agents (e.g., … of moulded products. (4) Dextran, glycogen (“animal starch”) and chitin and plastics produced from lignin This …Section XV > Chapter 72 > Heading 7202
Explanatory notes
… Ferro-molybdenum 7202.80 - Ferro-tungs ten and ferro-silico-tungsten - Other : 7202.91 - - Ferro-titanium … not normally used for rolling, forging or other working, at least not for industrial purposes, even though some are malleable. They are used in the iron or steel industry mainly to add definite proportions of …Section XIII > Chapter 70 > Heading 7015
Explanatory notes
… designed to protect the dials or faces of the articles in question, even if in particular cases the glasses are … they may have certain optical properties, but whereas the primary function of the glass elements of heading 70.14 is … but not optically worked) for corrective spectacles. In most cases, the corrective spectacle industry uses glass …Section XVI > Chapter 84 > Heading 8416
… fuel, for pulverised solid fuel or for gas; mechanical stokers, including their mechanical grates, mechanical ash …
Explanatory notes
… fuel, for pulverised solid fuel or for gas; mechanical stokers, including their mechanical grates, mechanical ash … of apparatus for the mechanical or automatic firing and stoking of furnaces of all kinds, and for evacuating the ash … . In these the heavy fuel is atomised in the air stream, in some cases by compressed air and in others by …Section XVIII > Chapter 91 > Heading 9105
Explanatory notes
… quartz crystal. They are often equipped with a striking mechanism (hours, half‑hours, or quarters) acting … systems as used in towns, factories, telephone exchanges, stations, airports, banks, hotels, schools, hospitals, etc. … marine or similar chronometers , i.e., high precision stationary timepieces, mainly designed for keeping time on …Section X > Chapter 48 > Heading 4811
Explanatory notes
… coated, impregnated or covered with wax, paraffin wax, stearin, oil or glycerol 4811.90 ‑ Other paper, paperboard, … are classified in this heading only if they are in strips or rolls or in rectangular (including square) sheets, … (ij) Correspondence cards and other paper or paperboard stationery of heading 48.17. (k) Roofing boards consisting …Section VII > Chapter 39 > Heading 3909
… Amino-resins, phenolic resins and polyurethanes, in primary forms. …