Explanatory notes
… zinc, tin, lead, etc. (2) Hard zinc spelter, residue from galvanisation by dipping in molten zinc. (3) Sludge from … after the preparation or refining of metal, and electro‑galvanising sludge. (4) Accumulator sludge. (5) Residues … and use of inks, dyes, pigments, paints, lacquers and varnishes, of a kind used for the recovery of metals or …