1.1 本规范规定了以一个标准尺寸比制成的、适用于最高工作温度为180 psig（6.9 bar）的100 psig（6.9巴）水环境的高温聚乙烯（PE-RT）塑料热水和冷水管道及分配系统部件的要求 °F（82 °C）。部件由卡套管、配件、阀门和歧管组成。管道可包含可选的聚合物内层、中层或外层。根据本标准要求对配件和PE-RT管道进行的测试表明，这些配件适用于PE-RT管路系统。包括材料、工艺、尺寸和公差、爆裂压力、持续压力、抗氧化性、温度循环试验、弯曲强度和环境应力开裂的要求和试验方法。 还包括与系统故障相关的测试。本规范所涵盖的部件适用于住宅和商业、冷热、饮用水分配系统以及建筑供水管线。 1.2 本规范的文本引用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）不应被视为规范的要求。 注1: 建议的管道和配件的静水压设计应力和静水压额定值列于 附录X1 紫外线标签指南见 附录X2 。中提供了设计、组装和安装注意事项 附录X3 。可选的性能鉴定和- 建议采用工厂质量控制程序 附录X4 . 1.3 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。 1.4 以下安全隐患警告仅适用于第节测试方法部分 7. 。 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。 1.5 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 polyethylene of raised temperature (PE-RT) plastic hot- and cold-water tubing and distribution systems components made in one standard dimension ratio and intended for 100 psig (6.9 bar) water service up to and including a maximum working temperature of 180 °F (82 °C). Components are comprised of tubing, fittings, valves and manifolds. Tubing may incorporate an optional polymeric inner, middle or outer layer. Testing of fittings and PE-RT tubing to the requirements of this standard indicate that these fittings are appropriate for use with PE-RT piping systems. Requirements and test methods are included for materials, workmanship, dimensions and tolerances, burst pressure, sustained pressure, oxidative resistance, temperature cycling tests, bend strength and environmental stress cracking. Also included are tests related to system malfunctions. The components covered by this specification are intended for use in residential and commercial, hot and cold, potable water distribution systems, and building supply lines. 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. Note 1: Suggested hydrostatic design stresses and hydrostatic pressure ratings for tubing and fittings are listed in Appendix X1 . UV labeling guidelines are provided in Appendix X2 . Design, assembly, and installation considerations are provided in Appendix X3 . An optional performance qualification and an in-plant quality control program are recommended in Appendix X4 . 1.3 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. 1.4 The following safety hazards caveat pertains only to the test methods portion, Section 7 , 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. 1.5 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.