Onder deze definitie valt elke techniek die in overeenstemming met de communautaire wetgeving is, waarin verwezen wordt naar R4 Terugwinning van metalen en metaalverbindingen, omschreven als non-ferrometalen, BAT Reference Note (december 2001, [http ...]
Any technique which is in accordance with the Community legislation and referring to R4 Reclaiming of Metals and Metal Compounds, that are described as Non Ferrous Metals, BAT Reference Note (December 2001, [http ...]