1.1 本规范涵盖了用于输送污水、工业废物、雨水和涵洞施工的钢筋拱形混凝土管。 1.2 本规范是SI规范的附录 C506级 ; 因此，本规范中不提供英寸-磅当量。符合规范要求的钢筋混凝土管 C506级 根据本规范可以接受 0.06亿 除非业主禁止。 注1: 本规范仅为制造和采购规范，不包括垫层、回填或现场荷载条件与管道强度等级之间的关系的要求。 然而，经验表明，该产品的成功性能取决于管道等级、垫层和回填类型的正确选择，以及安装是否符合施工规范。此处规定的钢筋混凝土管道的所有者应注意，他必须将现场要求与规定的管道等级相关联，并在施工现场进行检查。 1.3 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 reinforced arch-shaped concrete pipe to be used for the conveyance of sewage, industrial wastes, storm water, and for the construction of culverts. 1.2 This specification is the SI companion to Specification C506 ; therefore, no inch-pound equivalents are presented in this specification. Reinforced concrete pipe that conform to the requirements of Specification C506 are acceptable under this Specification C506M unless prohibited by the owner. Note 1: This specification is a manufacturing and purchase specification only, and does not include requirements for bedding, backfill, or the relationship between field load condition and the strength classification of pipe. However, experience has shown that the successful performance of this product depends upon the proper selection of the class of pipe, type of bedding and backfill, and care that the installation conforms to the construction specifications. The owner of the reinforced concrete pipe specified herein is cautioned that he must correlate the field requirements with the class of pipe specified and provide inspection at the construction site. 1.3 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.