Wastewater treatment plants - Part 3: Preliminary treatment (includes corrigendum AC:2000); German version EN 12255-3:2000 + AC:2000)
Edition 2001-03

Chemicals used for treatment of water intended for human consumption - Sodium peroxodisulfate; German version EN 12926:2015
Edition 2015-05

Chemicals used for treatment of water intended for human consumption - Liquefied ammonia; German version EN 12126:2022
Edition 2022-10

Chemical used for treatment of water intended for human consumption - Potassium peroxomonosulfate; German version EN 12678:2016
Edition 2016-12

Chemicals used for treatment of water intended for human consumption - Carbon dioxide; German version EN 936:2013
Edition 2014-03

Guidelines for the management of assets of water supply and wastewater systems - Part 4: Wastewater treatment plants, sludge treatment facilities, pumping stations, retention and detention facilities (ISO 24516-4:2019)
Edition 2021-08

Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide; German version EN 902:2016
Edition 2016-09

Oilseeds - Manual or automatic discontinuous sampling (ISO 21294:2017); German version EN ISO 21294:2017
Edition 2018-01

Drain and sewer systems outside buildings - Management and control of activities - Part 4: Control of inputs from users; German version EN 14654-4:2021
Edition 2022-12

Ventilation for buildings - Test procedures and measurement methods to hand over air conditioning and ventilation systems; German version EN 12599:2012
Edition 2013-01