Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 3: Specific funtional requirements for steel; German version EN 12007-3:2015— 25 стр.
Railway applications. Fixed installations. Electrical safety, earthing and the return circuit. Provisions against the effects of stray currents caused by d.c. traction systems— 34 стр.
LPG equipment and accessories - Inspection and requalification of LPG pressure vessels greater than 13 m<(hoch)3>; German version EN 12819:2019— 35 стр.
LPG Equipment and accessories - Inspection and requalification of LPG pressure vessels up to and including 13 m<(hoch)3>; German version EN 12817:2019— 38 стр.
Railway applications - Fixed installations - Electrical safety, earthing and the return circuit - Part 2: Provisions against the effects of stray currents caused by d.c. traction systems (english version)