… The heading also includes developers used for electrostatic document reproduction. (3) Fixers to make the developed … ammonium thiosulphate, ammonium or sodium or potassium thiocyanate). (4) Intensifiers and reducers to increase or …
… then reduced by smelting. During the roasting or sintering process, the sulphide is largely converted into oxide; in the smelting process, the oxide is reduced to lead by means of coke and a …
… 3 ) 3 and cyclo ‑tetraphosphoric acid (HPO 3 ) 4 , which occur as minor components of mixed polyphosphoric acids … salts thereof. Such mixtures, which are classified here, occur as vitreous masses, volatilising at red heat and are …
… of firing only blank cartridges. They may have solid or blocked barrels with a vent for the escape of gases. Certain … excludes bullet‑type pistols (usually of large calibre), occasionally used for slaughtering animals ( heading 93.02 …
… deposit of metallic silver. In the platinum deposition process, a compound of platinum chloride is brushed on to … etc.; toilet mirrors (including hand or hanging mirrors); pocket mirrors (whether or not in a protective case). The …
