Harmonized System

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Section VI > Chapter 28 > Heading 2812

Explanatory notes

… sulphur chloride, a yellow or reddish liquid, giving off fumes of a suffocating odour when exposed to air; decomposed … on selenium dioxide. Above 10 °C it is a yellow liquid, fuming in the air; below that temperature it forms …

Section XVI > Chapter 84 > Heading 8471

Explanatory notes

… in accordance with pre‑established instructions (program), furnish data which can be used as such or, in some cases, … automatic data processing machine and performing a specific function. Such machines, instruments or apparatus are … classified in the headings appropriate to their respective functions or, failing that, in residual headings (See …

Section VI > Chapter 28 > Heading 2849

Explanatory notes

… Obtained by treating carbon and silica in an electric furnace. Black crystals, lumps or shapeless masses, crushed or in grains. Fusible only with difficulty; resists chemical reagents; has … product; mixed with graphite it is used for lining electric furnaces or high temperature ovens. Also used for the …

Section XVI > Chapter 84 > Heading 8486

Explanatory notes

… manufacture of boules or wafers such as : (1)   One-melt furnaces for zone melting and refining of silicon rods, … oxidation furnaces for oxidizing the surface of wafers and diffusion furnaces for doping the wafers with impurities. …

Section VI > Chapter 28 > Heading 2827

Explanatory notes

… aqueous solutions of syrupy consistency. The anhydrous salt fumes on exposure to air. The solid chloride is used in … heading 26.20. White crystalline masses (butter of zinc), fused or granulated. It is highly deliquescent, soluble in water, caustic and very toxic. Used as an antiseptic, fungicide, dehydrating agent, for fire‑proofing wood, …

Section XVI > Chapter 84 > Heading 8412

Explanatory notes

…        This is a mechanically simple engine, which can function only on rapidly moving machines. It has no … of external air supply, the charge comprising both fuel and the combustion agents.         There are two main … of rocket engine is formed by the injection-system. The fuels used include ethyl alcohol, hydrazine hydrate, etc., …

Section XIII > Chapter 69 > Heading 6913

Explanatory notes

… value but are wholly ornamental, and articles whose only usefulness is to support or contain other decorative … (B)   Tableware and other domestic articles only if the usefulness of the articles is clearly subordinate to their … ink-stands, book-ends, paperweights and similar desk furnishings and picture frames. …

Section XVI > Chapter 84 > Heading 8475

Explanatory notes

… or hot working glass or glassware ( other than furnaces of heading 84.17 or 85.14 ). (I) MACHINES FOR … of this heading are those which work glass (including fused quartz and other fused silica) which has been heated …

Section VII > Chapter 39 > Heading 3909

Explanatory notes

… of amines or amides with aldehydes (formaldehyde, furfuraldehyde, etc.). The most important are urea resins … reacted with phosgene and heat to form free isocyanate functions.  The product is a chemically modified polymer of … includes : (a)  Resins (novolaks), which are permanently fusible and soluble in alcohol or other organic solvents, …

Section VI > Chapter 28 > Heading 2808

Explanatory notes

… and oxygen may be directly combined in an electric‑arc furnace and the resulting nitric oxide oxidised. It can also … the impurities (sulphuric or hydrochloric acids, nitrous fumes) are eliminated by distillation and hot air. Nitric … colourless or yellowish toxic liquid. In concentrated form (fuming nitric acid), it gives off clouds of yellowish …