1.1 本规范规定了公制尺寸和IPS表80尺寸的聚丙烯（PP）管道系统部件的要求，以及供水和配水的额定压力（见 附录X1 ). 包括聚丙烯（PP）管道系统组件（如管道、配件、阀门和歧管）的材料、工艺、尺寸和公差、产品测试和标记标准。 1.2 本规范规定的部件应允许用于供水管线、建筑供水管线、冷热水分配、循环加热和灌溉系统。 1.3 根据本规范生产的管道和配件应允许用于运输工业工艺流体、废水、泥浆、城市污水等。用户应咨询制造商，以确定所运输的材料是否与聚丙烯管道系统兼容，并且不会影响用户可接受的使用寿命。 1.4 单位-- 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.5 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification establishes requirements for polypropylene (PP) piping system components made to metric sizes and IPS schedule 80 sizes, and pressure rated for water service and distribution supply (see Appendix X1 ). Included are criteria for materials, workmanship, dimensions and tolerances, product tests, and marking for polypropylene (PP) piping system components such as pipe, fittings, valves, and manifolds. 1.2 The components governed by this specification shall be permitted for use in water service lines, building supply lines, hot-and-cold water distribution, hydronic heating, and irrigation systems. 1.3 The pipe and fittings produced under this specification shall be permitted to be used to transport industrial process fluids, effluents, slurries, municipal sewage, etc. The user shall consult the manufacturer to determine whether the material being transported is compatible with the polypropylene piping system and will not affect the service life beyond limits acceptable to the user. 1.4 Units— The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.