Nondestructive Testing (NDT) as a component of the quality surveillance at the production and the use of the Type B-Packaging

The quality assurance during the production of construction materials is able to ensure manufacturing almost without essential inhomogeneities. But material inhomogeneities never can be excluded completely. In the light of a loss of integrity of a component, which has the consequence of a significant radiological influence to persons or the environment, a detailed NDT is needed. The high requirements of the Type B- Packaging demand a special attend. For the design of the Type B-Packaging therefore it is necessary to pay attention to: - the fracture-mechanics characteristics of the materials, - the reliability of the manufacturing methods of the packaging, - the detection sensitivity of the NDT. Thus a definition of acceptance criteria (size of, frequency, minimum distances etc.) of inhomogeneities is possible. The NDT has to prove these acceptance criteria surely.