… that is, acids in which the anion contains only non-metal elements. This heading does not cover : (a) “Esters” of … and ethyl esters of phosphorous acid* can be converted by chemical synthesis to nerve gases. (C) Sulphuric esters and …
… (1) Descaling, pickling, scraping and other processes to remove the oxide scale and crust formed during the heating … grease, wax, paraffin wax, graphite, tar or bitumen. (3) Removal of small portions of the metal for testing purposes. …
… spraying with hot water or steam, the shaped forms are removed from the cones. These forms, which are still in a … includes certain very light and thin hoods known as “chemises” or handkerchief felts, used for fixing to rigid …
… in an electric furnace or by aluminium or carbon in a high temperature crucible. The powdered metal so obtained is … in filaments for electric light bulbs and radio valves; elements for electric furnaces; anti‑cathodes for X‑ray …
… - By plastics or rubber deposit 8485.30 - By plaster, cement, ceramics or glass deposit 8485.80 ‑ Other 8485.90 ‑ … of materials such as metals, plastics, rubber, plaster, cement, ceramics, glass, wood, paper or seed cells. …
… rolling and calendering. Composition leather may be dyed, embossed, polished, grained or stamped, suede finished by grinding with carborundum or emery, varnished or metallised. Such composition leather is …
… merely guide rockets during take‑off without propelling them, the rockets climbing under their own power ( heading … Air combat simulators refer to any electronic or mechanical system for training aircraft pilots by simulating air combat …
… In this Sub-Chapter, the term “derivatives” refers to chemical compounds which could be obtained from a starting … ; and digitonin , a saponin of digitalis, used as a chemical reagent. (3) Glycyrrhizin and glycyrrhizates , …
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