1.1 本规范涵盖了波纹双壁和三壁聚丙烯管和配件的要求和试验方法。所涵盖的标称内径为6英寸至60英寸[150毫米至1500毫米]。 1.2 本规范的要求旨在为无压卫生下水道系统提供地下使用的管道和配件。根据本规范生产的管道和配件应按照惯例进行安装 D2321 . 1.3 本规范涵盖了具有环形波纹壁和基本光滑内壁（即双壁）的管道和配件( 图1 )以及具有环形波纹壁和基本光滑的内外壁（即三重壁）的管道和配件( 图2 ). 图1 典型波纹双壁管 图2 典型波纹三壁管 1.4 以国际单位制或英寸-磅单位表示的值应单独视为标准值。每个系统中所述的值可能不是完全等效的；因此，每个系统都应独立使用。结合两个系统的值可能会导致非- 符合标准。 1.5 以下预防性声明仅适用于第 7. 根据本规范。 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 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 requirements and test methods for corrugated double and triple wall polypropylene pipe and fittings. The nominal inside diameters covered are 6 in. to 60 in. [150 mm to 1500 mm]. 1.2 The requirements of this specification are intended to provide pipe and fittings for underground use for non-pressure sanitary sewer systems. Pipe and fittings produced in accordance with this specification shall be installed in compliance with Practice D2321 . 1.3 This specification covers pipe and fittings with an annular corrugated wall and an essentially smooth interior wall (that is, double wall) ( Fig. 1 ) and pipe and fittings with an annular corrugated wall and an essentially smooth interior and exterior wall (that is, triple wall) ( Fig. 2 ). FIG. 1 Typical Corrugated Double Wall Pipe FIG. 2 Typical Corrugated Triple Wall Pipe 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 non-conformance with the standard. 1.5 The following precautionary statement applies only to 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. 1.6 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.