1.1 本规范涵盖了与将由符合规范要求的PVC溶剂水泥连接的聚氯乙烯（PVC）管道和配件一起使用的底漆的要求 D2564 . 1.2 这些底漆用于平端管和承插式管件或承插式管的压力和非压力应用。这些底漆在涂覆溶剂型水泥之前对管道和管件的表面进行处理。底漆对接缝凝固和固化时间的影响取决于水泥、管道尺寸、应用方法、温度和湿度。 1.3 实践中给出了将底漆与水泥一起使用的程序 D2855 . 1.4 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。 1.5 以英寸-磅为单位的数值应视为标准值。括号中给出的值仅供参考。 1.6 以下安全危险警告仅适用于测试方法部分第节 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。 1.7 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 requirements for primers for use with poly(vinyl chloride) (PVC) pipe and fittings that are to be joined by PVC solvent cements meeting the requirements of Specification D2564 . 1.2 These primers are used in pressure and nonpressure applications with plain end pipe and either socket-type fittings or bell end pipe. These primers prepare the surface of pipe and fittings before the application of solvent cement. The primer's effect on the set and cure time of the joint is dependent on the cement, pipe size, application method, temperature, and humidity. 1.3 A procedure for using the primer with cement is given in Practice D2855 . 1.4 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. 1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. 1.6 The following safety hazards caveat pertains only to the test methods 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. 1.7 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.