本推荐规程（RP）的主要目的是总结源检查员作为固定设备的源检查员通常需要了解的基本知识体系。第二个目的是帮助打算参加API来源检验考试的候选人成为认证来源检验师。本RP概述了源头检查的基本原理，可能有助于所有从事此类活动的人员以称职和道德的方式履行其工作。本RP涵盖了对供应用于石油、石化和天然气行业（包括上游、中游和下游部分）的材料、设备和制造进行必要质量监督的过程。 该RP可作为提供基于风险的源头检查系统方法的基础，以确保所采购的材料和设备符合项目文件和合同协议中规定的最低要求。本RP中概述的活动并非旨在取代制造商/制造商自己的质量体系，而是旨在指导代表买方的SIs确定制造商/制造商自己的质量体系是否正常运行，以使采购的设备和材料符合合同要求 协议。

The primary purpose of this recommended practice (RP) is to summarize the basic body of knowledge that the source inspector typically needs to know to perform as a source inspector for fixed equipment. A secondary purpose is to assist candidates intending to take the API Source Inspection Examination to become certified source inspectors. This RP outlines the fundamentals of source inspection and may be useful to all personnel conducting such activities to perform their jobs in a competent and ethical manner.This RP covers the process of specifying the necessary quality surveillance of materials, equipment, and fabrications being supplied for use in the oil, petrochemical, and gas Industry, including upstream, midstream, and downstream segments. This RP may be used as the basis for providing a systematic approach to risk-based source inspection in order to provide confidence that materials and equipment being purchased meet the minimum requirements as specified in the project documents and contractual agreements.The activities outlined in this RP are not intended to replace the manufacturer's/fabricator's own quality system, but rather are meant to guide SIs acting on behalf of purchaser to determine whether manufacturers'/fabricators' own quality systems have functioned appropriately, such that the purchased equipment and materials will meet contractual agreements.