ISO 13006:2012 defines terms and establishes classifications, characteristics and marking requirements for ceramic tiles of the best commercial quality (first quality). ISO 13006:2012 is not applicable to tiles made by other than normal processes of extrusion or dry pressing. It is not applicable to decorative accessories or trim, such as edges, corners, skirting, capping, coves, beads, steps, curved tiles and other accessory pieces or mosaics (i.e. any piece that can fit into an area of 49 cm2).