The standard covers detailed specifications for:
Welding Procedure Development (WPS & PQR) - Welder Testing Inc. din 2303 pdf
It defines found during dye penetrant inspection (PT) of metallic and non-metallic components. It is commonly used in: check VDI's store.
The primary goal of this standard is to qualify companies that perform welding on defense products. It bridges the gap between general industrial welding standards and the specialized, high-stakes needs of the defense sector. din 2303 pdf
This section lists other DIN standards you may need (e.g., DIN EN ISO 9016 for test specimens). Do not skip this—your quality plan may require multiple standards.
VDI often bundles technical standards with their guidelines. If your project is related to thermal cutting in mechanical engineering, check VDI's store.