Inspection results are verified through laboratory measurements, field tests and verification studies carried out by Det Norske Veritas. The images below illustrate the results from one of the verification tests. A corroded pipe was excavated, sand blasted and compared with optical measurement results performed by SINTEF. The sand blasting  process was carried out so that only the solid material of the pipe remained.

The Pipescanner results are on the left, optical high resolution results in the centre and a photographic image of the sandblasted pipe on the right. The Pipescanner results indicate the same corroded areas as seen on the two other plots.