包括截至2017年11月13日的勘误表。本参考规范提供了预制混凝土结构的标准公差。它涵盖了建筑施工中使用的预制混凝土构件的尺寸公差，以及这些构件的安装公差。本文件拟在合同文件中引用。规范制定者根据需要通过在合同文件中规定项目特定要求来补充本参考规范的规定。

Includes Errata as of November 13, 2017.This Reference Specification provides standard tolerances for precast concrete construction. It covers dimensional tolerances for precast concrete members used in building construction, and it covers erection tolerances for these members. This document is intended to be adopted by reference in Contract Documents. The Specifier supplements the provisions of this Reference Specification as needed by specifying projectspecific requirements in Contract Documents.