Pertains to secondary raw materials from waste-processing and/or post-consumer and defines the requirements for the ground of fiber reinforced thermosetting or thermoplastics composites or thermosetting plastic laminates HPL (according to the UNI EN 438), intended to be used as inert filler in the extrusion and/or molding processes of thermosetting and thermoplastic materials from raw materials or thermoplastic materials coming from recycling, or in the production of compounds of plastic materials.