Glossary of wastewater engineering terms; Trilingual version EN 16323:2014
Edition 2014-07

Water quality - Toxicity test for assessing the inhibition of nitrification of activated sludge microorganisms (ISO 9509:2006); German version EN ISO 9509:2006
Edition 2006-10

Sniffle valves for pumps
Edition 2020-02

Water quality - Determination of biochemical oxygen demand after n days (BODₙ) - Part 2: Method for undiluted samples (ISO 5815:1989, modified); German version EN 1899-2:1998
Edition 1998-05

Soil quality - Determination of redox potential - Field method (ISO 11271:2022)
Edition 2023-11

Biological evaluation of medical devices - Part 7: Ethylene oxide sterilization residuals (ISO/DIS 10993-7:2024); German and English version prEN ISO 10993-7:2024
Edition 2024-08

German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of oxygen consumption rate (S 6)
Edition 1986-04

Corrosion of metals in sea water and sea atmosphere - Part 1: Terms and Definitions, basic information; Text in German and English
Edition 2011-12

Wastewater treatment plants - Part 7: Biological fixed-film reactors; German and English version prEN 12255-7:2023
Edition 2023-09

Tanks for transport of dangerous goods - Terminology; German version EN 14564:2019
Edition 2019-10