1.1 本规范涵盖按照表40铁管尺寸（IPS）制造的共挤丙烯腈-丁二烯-苯乙烯（ABS）塑料排水管、废物和通风管，并通过共挤工艺生产，具有同心的内外固体ABS层和由闭孔蜂窝状ABS组成的芯。不符合第节规定的材料要求的塑料 5. 被排除在单层和所有共挤出层之外。 1.2 适用于符合本规范要求的管道的配件见 附件A1 .符合规范要求的配件 2261英镑 也是可以接受的。 1.3 丙烯腈-丁二烯-苯乙烯塑料，不符合中给出的原始ABS塑料的定义 3.2.4 被排除在外，因为除定义为未经处理的塑料外，塑料的性能尚未确定。ABS返工塑料，符合中给出的返工塑料要求 5.3 是可以接受的。 1.4 术语中定义的再加工塑料或再生塑料 D883年 被排除在外。 1.5 中提供了有关存储、连接和安装的建议 附录X1 ， 附录X2 和 附录X3 分别地 1.6 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。 1.7 以英寸磅为单位的数值应视为标准。括号中给出的值仅供参考。 1.8 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 coextruded acrylonitrile-butadiene-styrene (ABS) plastic drain, waste, and vent pipe made to Schedule 40 iron pipe sizes (IPS) and produced by the coextrusion process with concentric inner and outer solid ABS layers and the core consisting of closed-cell cellular ABS. Plastic which does not meet the material requirements specified in Section 5 is excluded from single layer and all coextruded layers. 1.2 Fittings suitable for use with pipe meeting the requirements of this specification are given in Annex A1 . Fittings meeting the requirement of Specification D2661 are also acceptable. 1.3 Acrylonitrile-butadiene-styrene plastic which does not meet the definitions of virgin ABS plastic as given in 3.2.4 is excluded, as performance of plastic other than those defined as virgin was not determined. ABS rework plastic which meets the requirements of rework plastic as given in 5.3 is acceptable. 1.4 Reprocessed plastic or recycled plastic as defined in Terminology D883 is excluded. 1.5 Recommendations for storage, joining, and installation are provided in Appendix X1 , Appendix X2 , and Appendix X3 , respectively. 1.6 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. 1.7 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. 1.8 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.