本标准旨在为工程师提供设计和施工指南 安装低压或中压无钢筋混凝土 灌溉管道，以及用于编制 特殊安装。仅限于带有通风口或支架的管道 暴露在大气中或在6米以下运行的封闭管道 （20英尺）的头部。其目的不是作为一套完整的设计 标准和施工规范。

This Standard is intended as a guide to engineers in the design and installation of low or intermediate pressure nonreinforced concrete irrigation pipelines and for the preparation of detailed specifications for a particular installation. It is restricted to pipelines with vents or stands open to the atmosphere or closed pipelines operating at less than 6 m (20 ft) of head. It is not intended to serve as a complete set of design criteria and construction specifications.