本文件提供了根据EN 1401 1对配方、产品和组件的符合性进行评估的要求和指导，该评估将作为质量管理体系的一部分纳入制造商的质量计划，并建立第三方认证程序。注1:质量管理体系应符合或不低于EN ISO 9001[1]的相关要求。注2:如果涉及第三方认证，认证机构应符合EN ISO/IEC 17065[2]或EN ISO/IEC 17021系列[3]，如适用。注3:为了帮助读者，附录a中给出了基本测试矩阵。结合EN 1401 1，本文件适用于由未增塑聚氯乙烯（PVC-U）制成的非压力地下排水和污水管道系统:-埋在建筑结构外的地下（应用区域代码“U”）；-埋在建筑结构内和建筑结构外的地下（应用区域代码“UD”）。

This document gives requirements and guidance for the assessment of conformity of formulations, products and assemblies in accordance with EN 1401 1 intended to be included in the manufacturer’s quality plan as part of the quality management system and for the establishment of third-party certification procedures. NOTE 1 The quality management system is expected to conform to or is no less stringent than the relevant requirements to EN ISO 9001 [1]. NOTE 2 If third party certification is involved, the certification body is expected be compliant with either EN ISO/IEC 17065 [2] or EN ISO/IEC 17021-series [3], as applicable. NOTE 3 In order to help the reader, a basic test matrix is given in Annex A. In conjunction with EN 1401 1, this document is applicable to piping systems made of unplasticized poly(vinyl chloride) (PVC-U) intended for non-pressure underground drainage and sewerage: - buried in ground outside the building structure (application area code “U”); - both buried in ground within the building structure and outside the building structure (application area code "UD").