1.1 本规范涵盖了用于符合规范的预制钢筋混凝土雨水管结构之间连接的弹性连接器的最低性能和材料要求 C478/C478M 和管道，以及暴雨排水系统的预制钢筋混凝土管和支管之间。 1.1.1 这些连接器旨在防止管道和雨水管结构之间以及管道和侧面之间的土壤迁移。 1.2 以英寸-磅或国际单位制表示的数值应单独视为标准值。 国际单位制显示在括号中。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。 注1: 本规范仅涵盖弹性连接的设计、材料和性能。本规范涵盖的连接件足以承受高达6 psi（14 ft）[41 kPa（4.3 m）]的静水压，且在根据第节进行测试时无泄漏 7. . 已安装系统的渗透量取决于除雨水管结构和管道之间的连接以外的许多因素，其他规范和已安装管道和系统的适当测试必须涵盖允许的渗透量。 注2: 对于超过6磅/平方英寸（14英尺）[41千帕（4.3米）]的安装，用户应注意验证连接器将承受的静水压头压力。如果施加在连接器上的总压力超过本规范的6 psi[41 kPa]限值，建议用户联系连接器制造商，以获取连接管道的替代方法或适用的替代标准。 1.3 以下预防性警告仅适用于试验方法部分第节 7. ，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。 有关特定警告声明，请参阅 7.2.4 . 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 minimum performance and material requirements for resilient connectors used for connections between precast reinforced concrete storm sewer structures conforming to Specification C478/C478M and pipes, and between precast reinforced concrete pipe and laterals for storm drainage systems. 1.1.1 These connectors are designed to prevent soil migration between the pipe and storm sewer structure, and between the pipe and lateral. 1.2 The values stated in inch pound or SI units are to be regarded separately as standard. The SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. Note 1: This specification covers the design, material, and performance of the resilient connection only. Connections covered by this specification are adequate for hydrostatic pressures up to 6 psi (14 ft) [41 kPa (4.3 m)] without leakage when tested in accordance with Section 7 . Infiltration quantities for an installed system are dependent upon many factors other than the connections between storm sewer structures and pipe, and allowable quantities must be covered by other specifications and suitable testing of the installed pipeline and system. Note 2: For installations that exceed 6 psi (14 ft) [41 kPa (4.3 m)], the user is cautioned to verify the amount of hydrostatic head pressure the connector will experience. If the total pressure applied to the connector exceeds the 6 psi [41 kPa] limits of the specification, the user is advised to contact the connector manufacturer for alternative methods of connecting the pipe, or applicable alternative standards. 1.3 The following precautionary 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. For a specific warning statement, see 7.2.4 . 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.