Chemicals used for treatment of water intended for human consumption - Acetic Acid; German version EN 13194:2015
Edition 2015-05

Chemicals used for treatment of water intended for human consumption - Sodium hydrogen sulfate; German version EN 16037:2012
Edition 2012-09

Water conditioning equipment inside buildings - Nitrate removal devices - Requirements for performance, safety and testing; German version EN 15219:2006+A1:2007
Edition 2008-02

Calculation of load capacity of cylindrical gears; introduction and general influence factors
Edition 1987-12

Chemicals used for treatment of water intended for human consumption - Sodium chloride for on site electrochlorination using non-membrane technology; German version EN 14805:2022
Edition 2022-11

Reinforced concrete pressure pipes and distributed reinforcement concrete pressure pipes (non-cylinder type), including joints and fittings; German version EN 640:1994
Edition 1994-12

Railway applications - Track - Wood sleepers and bearers; German version EN 13145:2001+A1:2011
Edition 2011-12

ISO general purpose metric screw threads - Gauges and gauging (ISO 1502:1996)
Edition 1996-12

Centrifugal pumps - Technical specifications for centrifugal pumps; class III (ISO 9908:1993)
Edition 1998-04

Quantities and units - Part 5: Thermodynamics (ISO 80000-5:2019); German version EN ISO 80000-5:2019
Edition 2020-02