1.1 本规范涵盖了化学废物排放系统中使用的CPVC管道、配件和溶剂水泥的性能要求。 1.2 系统由符合本标准要求的管道、管件和溶剂水泥组成。 注1: 使用前，请咨询制造商关于化学废物排水应用的耐化学性建议。 1.3 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。 1.4 本标准中描述的压力试验是实验室水压试验，旨在验证接头/系统的完整性。它们不用于已安装系统的现场测试。 1.5 由于用压缩空气或其他压缩气体测试部件和系统存在固有危险，除非部件制造商书面批准，否则不得进行此类测试。 注2: 加压（压缩）空气或其他压缩气体含有大量储存的能量，如果系统因任何原因发生故障，这些能量会带来严重的安全隐患。 1.6 本规范提供了用于连接不同材料的管道和配件的机械接头。它们包括通用法兰、联轴器和活接头。 1.7 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。 注3: 本规范规定了流体处理应用的尺寸、性能和试验要求，但未涉及燃烧气体的排放。 1.8 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。 1.9 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 covers the performance requirements of CPVC pipe, fittings and solvent cements used in chemical waste drainage systems. 1.2 A system is made up of pipe, fittings and solvent cement that meet the requirements of this standard. Note 1: Consult the manufacturer’s chemical resistance recommendations for chemical waste drainage applications prior to use. 1.3 The text of this specification references notes, footnotes and appendices that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification. 1.4 The pressure tests described in this standard are laboratory hydrostatic tests that are intended to verify joint/system integrity. They are not intended for use as field tests of installed systems. 1.5 Due to inherent hazards associated with testing components and systems with compressed air or other compressed gases, no such testing shall be done unless the component manufacturer gives approval in writing. Note 2: Pressurized (compressed) air or other compressed gases contain large amounts of stored energy, which present serious safety hazards should a system fail for any reason. 1.6 Mechanical joints used for joining pipe and fittings of different materials are provided for in this specification. They include common flanges, couplings, and unions. 1.7 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. Note 3: This specification specifies dimensional, performance, and test requirements for fluid handling applications but does not address venting of combustion gases. 1.8 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. 1.9 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.