GCA Process Specification for Decontaminating 304 SS Hot Leg LMFBR Components

摘要

This specification defines the procedures and equipment required to remove radioactive deposits from 304SS LMFBR components which have operated at a temperature near 1000F (538C) to an activity level which will permit hands on maintenance. This process is for use on components which are expected to be requalified and returned to service. The process involves treating the components with a 2.5% glycolic-2.5% citric acid (GCA) mixture at a predetermined temperature in the range of 70 to 90C for a period of time required to achieve the desired decontamination. Details of the process steps required, necessary equipment and instrumentation and process end point criteria are provided. (ERA citation 07:007364)