Technical Committee Inspection and Material Properties
Assessment of the Condition of Tank Bottoms by the Acoustic Emission Technique
Since 1989 the Acoustic Emission Technique (AE method) has been applied widely for
the inspection of flat-bottom-tanks. Reports on tank bottom assessments already
carried out in Germany, and comparative investigations of the tank inside by means of
non-destructive test methods were analysed and appraised, in order to examine the
reliability of this special method.
From this the following recommendation could be deduced:
The Acoustic Emission Technique for the assessment of tank bottoms can, among other things, contribute to a preliminary decision on whether tanks need a closer inspection or whether an extension of the time limit for testing may be appropriate. Each time the relevant authorities should be involved in the application of the procedure.