In particular, the production of welded components and components in pressurized petrochemical plants requires a high inspection effort to ensure the function and to exclude the threat to health and the environment.

Derived from the technical documentation for the manufacture of a component and its parts, the test plan is created. This also takes into account the specifications, the classification documents and standards.

The creation of a component and its parts requires an often underestimated preparation of technical documentation based on requisitions, specifications and engineering practices. Likewise, in the course of creating a component, compliance with inspection planning, material control and factory acceptance must be documented.

Experience shows that the manufacturing process and production processes must be given the highest attention with regard to the quality of the manufactured components and their parts.