1. GL: Rules and Guidelines, I — Ship Technology, Part 1; Seagoing Ships, Chapter 1: Hull Structures. Germanischer Lloyd, Hamburg 2010.
2. BWB: BV 1040-1 Structural Strength of Surface Ships, German Federal Office of Defense Technology and Procurement (BWB), Koblenz 2007
3. VSM: Production Standard of the German Shipbuilding Industry. Verband der Deutschen Schiffbauindustrie e.V., Hamburg 2003.
4. ISO 5817: Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beamwelding excluded) — Quality levels for imperfections. International Standardisation Organisation, Geneva 2006.
5. ISO 5817: Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beamwelding excluded) — Quality levels for imperfections. International Standardisation Organisation, Geneva 2003.