1.1 本规范描述了适用于使用热塑性弹性体（TPE）垫片（以下简称联轴器）作为机械联轴器的装置或组件的性能，用于连接地面和地下使用的排水、废水和通风（DWV）、下水道、卫生和雨水管道系统。 1.2 待连接的管道应具有相似或不同的材料或尺寸，或两者兼有。 1.3 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.4 此处引用的ASTM标准应视为强制性标准。 1.5 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 describes the properties of devices or assemblies suitable for use as mechanical couplings using thermoplastic elastomeric (TPE) gaskets, hereinafter referred to as couplings, for joining drain, waste, and vent (DWV), sewer, sanitary, and storm plumbing systems for above and below ground use. 1.2 The pipe to be joined shall be of similar or dissimilar materials or size, or both. 1.3 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 ASTM standards referenced herein shall be considered mandatory. 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.