The DIN 2303 standard establishes quality requirements for companies performing welding, brazing, and thermal spraying on defence-related products. It is a national German standard mandatory for manufacturers supplying equipment like naval ships, submarines, and land vehicles to the German Armed Forces (Bundeswehr).
When the original standard is impossible to locate or your project requires modern compliance, follow this risk-based approach: din 2303 pdf
Welding Procedure Development (WPS & PQR) - Welder Testing Inc. The DIN 2303 standard establishes quality requirements for
Personnel Qualifications: Companies must employ qualified welding supervisors (often International Welding Engineers or Specialists), certified NDT (Non-Destructive Testing) inspectors, and skilled welders or operators. Unalloyed Steels : Begin with the letter "C"