本规程补充了PIP REIE686/API RP686《机械安装和安装设计推荐规程》。本规程和PIP REIE686/API RP686共同提供了安装建议程序、规程和检查表的要求，用于安装和预调试新的、现有的和重新应用的机械，并协助此类机械的安装设计。本规程描述了对PIP REIE686/API RP686的添加、更改和删除。此外，还描述了与PIP REIE686/API RP686提供的选项有关的决策。

This Practice supplements PIP REIE686/API RP686, Recommended Practice for Machinery Installation and Installation Design. Together, this Practice and PIP REIE686/API RP686 provide requirements for installation recommended procedures, practices, and checklists for the installation and precommissioning of new, existing, and reapplied machinery and to assist with the installation design of such machinery.This Practice describes additions, changes, and deletions that have been made to PIP REIE686/API RP686. In addition, decisions that have been made regarding options offered by PIP REIE686/API RP686 are also described.