3. Applications

• In general, any specifications for non-destructive testing must describe the part(s) to be inspected.

• the environment in which the inspection service is performed;

• a description of the defects to be detected, with a representative sample provided if possible.

The description of the physical principles of the various techniques presented in the preceding paragraphs allows the suitability of a technique for a given inspection to be assessed based on the type of defects being sought. A summary enabling one or more techniques to be selected is presented in Table 4 .