a metal whose specific gravity is approximately 5.0 or higher, any compound of antimony, arsenic, cadmium, chromium (VI), copper, lead, mercury, nickel, selenium, tellurium, thallium and tin, as well as these materials in metallic form, as far as these are classified as hazardous substances, metall, mille tihedus on 5 või rohkem, iga antimoni-, arseeni-, kaadmiumi-, kroom(VI)-, vase-, plii-, elavhõbeda-, nikli-, seleeni-, telluuri-, talliumi- ja tinaühend ning need materjalid metallilises vormis, juhul kui need on klassifitseeritud ohtlikeks aineteks