1.1 本规范的发布是为了应对有关联邦采购指南（含回收成分的塑料管）监管要求的特殊情况。 1.2 本规范涵盖具有中心层和同心内外固体层的共挤聚氯乙烯塑料管。该管道使用多层共挤模具生产。内层和外层由未经处理的PVC化合物制成，中间层重新处理回收的PVC成分。该管道用于三个系列的非压力用途: 1.2.1 下水道排水管系列，外径为污水管（PSM），管道刚度为46 psi（320 kPa）， 1.2.2 IPS Schedule 40系列，以及 1.2.3 IPS管道刚度（PS）系列，管道刚度为100 psi（690 kPa）和120 psi（830 kPa）。 1.3 外径受控的管道没有适合用作管件套筒的内径。 1.4 所有管道系列都允许在生产过程中穿孔。 1.5 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.6 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 has been published in response to the special circumstance of regulatory requirements regarding federal procurement guidelines for plastic pipe having recycled content. 1.2 This specification covers coextruded Poly(Vinyl Chloride) (PVC) plastic pipe with a center layer and concentric inner and outer solid layers. The pipe is produced using a multi-layer coextrusion die. The inner and outer layers are made of virgin PVC compound and the center layer has reprocessed-recycled PVC content. The pipe is for non-pressure use in three series: 1.2.1 Sewer-Drain series with a sewer-pipe (PSM) outside diameter and a pipe stiffness of 46 psi (320 kPa), 1.2.2 IPS Schedule 40 series, and 1.2.3 IPS Pipe Stiffness (PS) series with pipe stiffnesses of 100 psi (690 kPa) and 120 psi (830 kPa). 1.3 Pipe that is outside-diameter controlled does not have an inside diameter suitable for use as a fitting socket. 1.4 All pipe series are allowed to be perforated during production. 1.5 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. 1.6 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.