Methodology for functional safety assessment of protective systems for potentially explosive atmospheres; German version EN 15233:2007
Edition 2007-11

Petroleum and natural gas industries - Pipeline transportation systems (ISO 13623:2009 modified); German version EN 14161:2011+A1:2015
Edition 2015-07

Engineering services - Terminology to describe engineering services for buildings, infrastructure and industrial facilities; German version EN 16310:2013
Edition 2013-05

Precast concrete products - Retaining wall elements; German version EN 15258:2008
Edition 2009-05

German standard methods for the examination of water, waste water and sludge - Anions (group D) - Part 35: Determination of arsenic - Method by graphite furnace atomic absorption spectrometry (GF-AAS) (D 35)
Edition 2004-09

German standard methods for examination of water, waste water and sludge - Cations (group E) - Part 8: Determination of zinc - Method by atomic absorption spectrometry (AAS) using an air-ethine flame (E 8)
Edition 2004-10

Copper and copper alloys - Sheet and strip for building purposes; German version EN 1172:2011
Edition 2012-02

Reinforced concrete pressure pipes, cylinder type, including joints and fittings; German version EN 641:1994
Edition 1994-12

Precast concrete products - Box culverts; German version EN 14844:2006+A2:2011
Edition 2012-02

GRP tanks and vessels for use above ground - Part 3: Design and workmanship; German version EN 13121-3:2016
Edition 2016-10