本欧标准规定了建筑结构外的非压力地下排水和污水处理领域的固体壁管，配件和由矿物改性聚丙烯材料（PP-MD）制成的管道系统的要求（应用领域代码“ U“），以及建筑结构（应用区域代码”D“）和建筑物外部地下埋地的非压力地下排水和污水处理。 这反映在“U”和“UD”的产品标记中。 它还规定了本欧洲标准中提到的测试方法的测试参数。 该欧洲标准涵盖了一系列公称尺寸，一系列管道系列/刚度等级，并提供了有关颜色的建议。 注1:购买者或说明者有责任从这些方面进行适当选择，并考虑到其特定要求和相关的国家法规和安装规范。 结合EN 14758的第2部分和第3部分（见前言），它适用于PP-MD管道和接头，其弹性密封环接头以及旨在用于埋设的其他塑料和非塑料材料部件的接头非压力管道系统u

This European Standard specifies the requirements for solid-wall pipes, fittings and the system of piping systems made from mineral modified polypropylene materials (PP-MD) in the field of non-pressure underground drainage and sewerage outside the building structure (application area code "U"), and non- pressure underground drainage and sewerage for both buried in ground within the building structure (application area code "D") and outside the building structure. This is reflected in the marking of products by "U" and "UD". It also specifies the test parameters for the test methods referred to in this European Standard. This European Standard covers a range of nominal sizes, a range of pipe series/stiffness classes and gives recommendations concerning colours. NOTE 1 It is the responsibility of the purchaser or specifier to make the appropriate selection from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes. In conjunction with Part 2 and Part 3 of EN 14758 (see Foreword) it is applicable to PP-MD pipes and fittings, their elastomeric sealing ring joints and to joints with components of other plastics and non-plastics materials intended to be used for buried piping systems for non-pressure underground drainage and sewerage. This European Standard is applicable to PP-MD pipes with or without an integral socket. NOTE 2 The fittings can be manufactured by injection-moulding or be fabricated from pipes and/or mouldings. NOTE 3 Requirements and limiting values for application area code "D" are given in Table 4, Table 7 and Table 13. NOTE 4 Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex B can be used with pipes and fittings conforming to this European Standard, when they conform to the requirements for joint dimensions given in Clause 6 and to the requirements of Table 13.