Air quality - Certification of automated measuring systems - Part 3: Performance criteria and test procedures for automated measuring systems for monitoring emissions from stationary sources; German version EN 15267-3:2007
Edition 2008-03

German standard methods for examination of water, waste water and sludge - Anions (group D) - Part 9: Spectrometric determination of nitrate (D 9)
Edition 2011-09

German standard methods for the examination of water, waste water and sludge - Gaseous components (group G) - Part 3: Determination of ozone (G 3)
Edition 2011-04

Protective gloves against mechanical risks; German version EN 388:2016+A1:2018
Edition 2019-03

Geometrical product specifications (GPS) - Surface texture: Areal - Part 6: Classification of methods for measuring surface texture (ISO 25178-6:2010); German version EN ISO 25178-6:2010
Edition 2010-06

Water quality - Determination of the methylene blue active substances (MBAS) index - Method using continuous flow analysis (CFA) (ISO 16265:2009); German version EN ISO 16265:2012
Edition 2012-05

Chemicals used for treatment of water intended for human consumption - Chlorine; German version EN 937:2016
Edition 2016-09

Chemicals used for treatment of water intended for human consumption - Antiscalants for membranes - Phosphonic acids and salts; German version EN 15040:2014
Edition 2014-06

Water conditioning equipment inside buildings - Devices using mercury low-pressure ultraviolet radiators - Requirements for performance, safety and testing; German version EN 14897:2006+A1:2007
Edition 2007-09

Calibration of wavelength/optical frequency measurement instruments - Part 2: Michelson interferometer single wavelength meters (IEC 62129-2:2011); German version EN 62129-2:2011
Edition 2012-03