Physico–statistical models based on the residual defectiveness of structural materials - Probabilistic Safety Assessment for Optimum Nuclear Power Plant Life Management (PLiM) - page 151

Table 5.8 A generalized estimate of detection of discontinuities by
various physical inspection methods

The type of defect UI RG MP ECI DP

Fatigue cracks under
compressive stresses

Bad Bad Bad Bad Bad

Satisfac-
tory

Opened cracks Good Poor Poor Satisfactory

Planar discontinuity
type fusions

Good Fair Fair Good Good

n , number

a)

￿ ￿ ￿ ￿ ￿

b)

c)

5.35 Results of decoding 26 gammagraphs by 24 radiographs
with the service life of 0.5 to 10 years in radiographic testing: a)
incomplete fusion, b) pores, c) slag inclusions.