Annex I – SIMULATIONS OF THE EFFECT OF MISSING MISSES IN POD ESTIMATION FROM IN-SERVICE DATA

It has been recognized for many years that application parameters and human factors, as described in the Reliability Formula proposed at the First European-American Workshop on NDE Reliability, are limiting factors in the performance of non-destructive evaluation (NDE). Experiments to determine the probability of detection (POD) for specific NDE applications are often designed and performed in conditions that do not reflect the conditions in which the actual inspections are performed. Climate, training and motivation are just a few examples of variables that are difficult to mimic in experiment.