… avidly, and is transported in airtight packings. It is used for drying gases, and in organic synthesis. … acid by condensation at high temperature gives rise to several polymeric acids : pyrophosphoric (diphosphoric) … with elimination of the elements of water. In this way, a series of linear acids of general formula H n+2 P n O 3n+1 , …
… 85.41 . (6) Resistors known as “strain gauges” being the sensitive elements of a strain measuring instrument. … general provisions regarding the classification of parts (see the General Explanatory Note to Section XVI), parts of the resistors of this heading are …
… inhalation into the mouth, other than directly into the nose, without combustion as defined in Note 3 to this Chapter. These products include, inter alia : Products containing … in different forms (e.g., strips or granules), intended for use in tobacco heating systems in which the heating is …
… Other (I) Lac . Lac is a resinous substance produced on several kinds of tropical trees by an insect belonging to … dark red and the most highly coloured variety of lac. (B) Seed lac , the crushed lac detached from the branches, … in the electrical industry and for the production of sealing wax. (D) Refuse lac (or garnet lac) obtained from …
… heading covers paper or paperboard stationery of the kind used in correspondence, e.g., envelopes, letter cards, plain postcards (including correspondence cards). Separate writing paper in loose sheets or in blocks and … perforated) edges or other provision for closing or sealing without the use of envelopes. Plain postcards do not …
… covers hydraulic turbines and water wheels which can, by themselves, transform into motive power the energy possessed … general provisions regarding the classification of parts (see the General Explanatory Note to Section XVI), parts of the hydraulic turbines or water …
… other ligneous materials such as fragments obtained from bagasse, bamboo, cereal straw or from flax or hemp shives. … the edges of the board with the naked eye. However, in some cases, microscopic examination may be required to … board covered on one or both faces with fibreboard; (2) several particle boards whether or not covered on one or …
… contains impurities (e.g., chlorides of the alkali metals). Used as an oxidising agent, in organic synthesis, in textile … soluble in water. Its other properties are similar to those of sodium chlorate. It is also used in medicine and in …
… springs, made from wire or rod of round or rectangular section. They are used for numerous purposes (e.g., in … in shock‑absorbers, buffers on rolling stock couplings, secateurs, hair clippers, etc. (C) Flat springs and flat …
… reeling : perforated or torn cocoons (damaged by the moth itself, by parasites, by accident or otherwise) with broken filament; cocoons so badly damaged … or not still containing the chrysalis, etc. 2) Blazes . These are silky networks, formed of loose, tangled …
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