本文件提供了根据EN 17176中的适用部分评估化合物/配方、产品、接头和组件的符合性的要求和指南，这些部分将作为质量管理体系的一部分纳入制造商的质量计划，并用于建立认证程序。 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，认证机构应获得EN ISO/IEC 17065[2]或EN ISO/IEC 17021[3]认证（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 根据EN 17176 1、EN 17176 2、CEN/TS 17176 3和EN 17176 5，本文件适用于供水用定向未增塑聚氯乙烯（PVC-O）塑料管道系统，用于地下和地上排水、排水和带压灌溉。

This document gives requirements and guidance for the assessment of conformity of compounds/formulations, products, joints and assemblies in accordance with the applicable parts of EN 17176 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 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 accredited to EN ISO/IEC 17065 [2] or EN ISO/IEC 17021 [3], as applicable. NOTE 3 In order to help the reader, a basic test matrix is given in Annex A. In conjunction with EN 17176 1, EN 17176 2, CEN/TS 17176 3 and EN 17176 5, this document is applicable to oriented unplasticized poly(vinyl chloride) (PVC-O) plastics piping systems for water supply and for buried and above-ground drainage, sewerage and irrigation under pressure.