BS PD CEN/TS 1852-2:2015 gives guidance for the assessment of conformity of materials, products,joints and assemblies in accordance with the applicable part(s) of EN 1852 intended to be included inthe manufacturer's quality plan as part of the quality management system and for the establishment ofcertification procedures.NOTE In order to help the reader, a basic test matrix is given in Annex A.In conjunction with EN 1852-1 this document is applicable to solid wall piping systems made ofpolypropylene (PP) intended to be used for:

non-pressure underground drainage and sewerage outside the building structure (application areacode "U"), and
non-pressure underground drainage and sewerage for both buried in ground within the buildingstructure (application area code "D") and outside the building structure.

This is reflected in the marking of products by "U" and "UD".Cross References:EN 1852-1:2009EN ISO/IEC 17021-1ISO/IEC 17021-1EN ISO/IEC 17020ISO/IEC 17020EN ISO/IEC 17025ISO/IEC 17025EN ISO 9001 ISO 9001