scope:

The primary objective of this research project involving PVRC weld specimens 155,202,203, and 2515 was to determine the radiographic detectability of deliberately induced flaws. A group of evaluation teams, without prior knowledge of the number, type, or location of the intentional discontinuities, independently examined each specimen in accordance with identical instructions. The results of these examinations were used as the basis for decisions regarding the flaws. This report describes the evaluation techniques used to reduce the data from the examination evaluating teams and to summarize the detectability of the deliberately induced and naturally occurring flaws in the weld specimens.