Full Description

1.1This guide covers procedures for establishing a program to monitor the performance of Coating Service Level III lining (and coating) systems in operating nuclear power plants. Monitoring is an ongoing process of evaluating the condition of the in-service lining systems.

1.2Coating Service Level III lining systems subject to this guide are generally those applied to metal substrates comprising raw water, condensate-quality water, or fuel oil wetted (that is, full or intermittent immersion) surfaces in systems that may include:

1.2.1Service water piping upstream of safety-related components,

1.2.2Service water pump internals (draft tube, volutes, and diffusers),

1.2.3Service water heat exchangers including the channels, pass partitions, tubesheets, end bells, and covers

1.2.4Service water strainers,

1.2.5Reactor water storage tanks (RWSTs),

1.2.6Refuel cavity water storage tanks,

1.2.7Reactor makeup water system,

1.2.8Component cooling water system,

1.2.9Lube oil tanks for safety-related equipment, and

1.2.10Emergency diesel fuel oil system.

1.3It is the intent of this guide to provide a recommended basis for establishing a linings monitoring program, not to mandate a singular basis for all programs. Variations or simplifications of the program described in this guide may be appropriate for any given operating nuclear power plant depending on its licensing commitments. Similar guidelines may be applicable for certain Coating Service Level II applications such as fluid immersion systems.

1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.