1.1 本规范涵盖了壁厚等于或大于SDR 64的塑料管道压力系统所需的接头类型，并拟用于供水和配水管线，使用柔性弹性密封件。本规范涵盖了测试要求、测试方法和材料。所述试验方法并非常规质量控制试验，而是评估接头的性能特征。 1.2 本规范的文本参考了提供解释材料的注释、脚注和附录。 这些注释和脚注（不包括表和图中的注释和脚注）不应视为本规范的要求。 1.3 以下安全危险警告与试验方法部分第节有关 6. ，本规范: 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。

1.1 This specification covers the types of joints required for plastic pipe pressure systems with a wall thickness equal to or greater than that of SDR 64 and intended for use in supply and distribution lines for water, using flexible elastomeric seals. This specification covers the test requirements, test method, and materials. The test methods described are not intended to be routine quality control tests but are to evaluate the performance characteristics of the joint. 1.2 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification. 1.3 The following safety hazards caveat pertains to the test method portion, Section 6 , of this specification: 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. 1.4 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.