The radiographic test is generally used for the detection of internal discontinuities in welding seams with a wall thickness up to 40 mm. The preparation and analysis of the test is solely conducted by certified personnel according to DIN EN 473 level 2.
X-rays simple wall: class A+B up to t=20 mm
X-rays double wall: class A+B up to t=10 mm
Gamma rays iridium192 class A simple wall: t=20-100 mm
Gamma rays iridium192 class B double wall: t=10-45 mm
Evaluation according to group B for pressure vessels, C for medium strained components, D for simple steel structures.
