非压力地下排水和污水的塑料管道系统 - 未增塑的聚氯乙烯（PVC-U） 聚丙烯（PP）和聚乙烯（PE）的结构壁管道系统 - 第2部分:具有光滑的管道和配件外表面 A型

[中文适用范围]： 本文件与 ISO 21138-1 一起规定了基于未增塑聚氯乙烯 (PVC-U)、聚丙烯 (PP) 和聚乙烯 (PE) 结构壁管道系统，用于非压力地下排水和污水处理应用。 注1：符合本文件要求的管道、配件和系统也可用于公路排水和地表水。 本文件规定了测试方法和测试参数。 本文件涵盖了一系列管道和配件尺寸、材料、管道结构和标称环刚度，并给出了有关颜色的建议。 注 2：购买者或指定者有责任从这些方面做出适当的选择，并考虑到他们的特殊要求和安装实践或规范。 与 ISO 21138-1 一起，本文件适用于结构壁管道和配件、其接头以及与其他塑料和非塑料材料部件的接头。 它适用于带有或不带有弹性环密封接头以及焊接和熔接接头的整体承插口的管道和配件。 注 3：对于大于 DN/OD 1200 或 DN/ID 1200 的尺寸，本文件可作为有关外观、颜色、物理和机械特性以及性能要求的一般指南。 本文件中未包含测试方法。 [外文原描述]： This document, together with ISO 21138-1, specifies the definitions and requirements for pipes with smooth external and internal surfaces (Type A), fittings and systems based on unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall piping systems intended to be used in non-pressure underground drainage and sewerage applications. NOTE 1 Pipes, fittings and the system complying with this document can also be used for highway drainage and surface water. This document specifies test methods and test parameters. This document covers a range of pipe and fitting sizes, materials, pipe constructions and nominal ring stiffnesses, and gives recommendations concerning colours. NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and installation practices or codes. In conjunction with ISO 21138-1, this document is applicable to structured-wall pipes and fittings, to their joints and to joints with components of other plastics and non-plastics materials. It is applicable to pipes and fittings with or without an integral socket with elastomeric ring seal joints as well as welded and fused joints. NOTE 3 For dimensions larger than DN/OD 1200, or DN/ID 1200, this document can serve as general guidance regarding appearance, colour, physical and mechanical characteristics as well as performance requirements. Test methods are not included in this document.