American Society for Testing and Materials (ASTM). Current edition approved March 1, 2005. Published April 2005. Originally approved in 1991. Last previous edition approved in 2005 as D 5163 – 05. 4 p. This guide covers procedures for establishing a program to monitor the performance of Coating Service Level I coating systems in operating nuclear power plants. Monitoring is an on going process of evaluating the condition of the in-service coating systems.