DIN EN 30042:1994 Arc-welded joints in aluminium and its weldable alloys - Guidance on quality levels for imperfections (ISO 10042:1992); German version EN 30042:1994
DIN EN ISO 9606-2:2005 Qualification test of welders - Fusion welding - Part 2: Aluminium and aluminium alloys (ISO 9606-2:2004); German version EN ISO 9606-2:2004