Methods for the calibration of vibration and shock transducers - Part 21: Vibration calibration by comparison to a reference transducer (ISO 16063-21:2003 + Cor. 1:2009 + Amd.1:2016)
Edition 2016-08

Water quality - Guidance standard for the surveying of macrophytes in lakes; German version EN 15460:2007
Edition 2008-01

German standard methods for the examination of water, waste water and sludge; bio-assays (group L); determining the tolerance of green algae to the toxicity of waste water (Scenedesmus chlorophyll fluorescence test) by way of dilution series (L 33)
Edition 1991-03

Geotextiles and geotextile-related products - Determination of index abrasion resistance characteristics under wet conditions for hydraulic applications (ISO 22182:2020)
Edition 2022-12

German standard methods for the examination of water, waste water and sludge; bio-assays (group L); determining the tolerance of Daphnia to the toxicity of waste water by way of a dilution series (L 30)
Edition 1989-03

Symbol for use in the labelling of medical devices - Requirements for labelling of medical devices containing phthalates; German version EN 15986:2011, with CD-ROM
Edition 2011-05

Characterization of sludges - Pre-treatment for the determination of extractable ammonia using 2 mol/l potassium chloride; German version EN 14671:2006
Edition 2006-09

Aluminium and aluminium alloys - Test methods - Earing test for sheet and strip; German version EN 1669:1996
Edition 1997-02

Guidance on project management (ISO 21500:2012)
Edition 2016-02

Basic semen examination - Specification and test methods (ISO 23162:2021); German version EN ISO 23162:2021
Edition 2021-10