This document gives guidance and requirements for the assessment of conformity of compounds/formulations, products, joints and assemblies in accordance with the applicable part(s) of EN 14758 intended to be included in the manufacturer s quality plan as part of the quality management system and for the establishment of certification procedures. NOTE 1 A basic test matrix provides an overview of the testing scheme in Annex A, Table A.1. NOTE 2 If certification is involved, the certification body operating according to EN ISO/IEC 17065 [1] and EN ISO/IEC 17020 [2] is considered to be competent. In conjunction with EN 14758-1, this document is applicable to solid wall pipes and fittings with or without internal and/or external skin and the system made of mineral modified polypropylene materials (PP-MD) intended to be used for non-pressure underground drainage and sewerage: outside the building structure (application area code U ); and for both buried in ground within the building structure and outside the building structure (application area code UD ).