Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections (ISO 5817:2014); German version EN ISO 5817:2014— 36 стр.
Quality requirements for fusion welding for metallic materials - Part 3: Standard quality requirements (ISO 3834-3:2005); German version EN ISO 3834-3:2005— 14 стр.
Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels; German version EN 10025-2:2004— 37 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations— 16 стр.