Review of the Basis and Experience With Application of ASME BPV Code Case 2235

Abstract

Code Case 2235 provides a technical basis for substitution of the ultrasonic method for radiography for examination for acceptance of welds in pressure vessels and piping. This paper first describes the background for the development of UT technique qualification by performance demonstration and the associated fitness-for-service flaw acceptance criteria of Code Case 2235. It then proceeds with review of the ASME and other standards based on the same or similar criteria, and continues with comments on typical examples of subsequent technical papers addressing field applications of Code Case 2235.