Water quality - Guidance standard on assessing the hydromorphological features of transitional and coastal waters; German version EN 16503:2014
Edition 2014-11

Water quality - Guidance on the use of in vivo absorption techniques for the estimation of chlorophyll-a concentration in marine and fresh water samples; German version EN 16161:2012
Edition 2012-09

Water quality - Spectrophotometric determination of chlorophyll-a content by ethanol extraction for the routine monitoring of water quality; German version EN 17899:2024
Edition 2025-04

Meteorology - Sonic anemometers/thermometers - Acceptance test methods for mean wind measurements (ISO 16622:2002)
Edition 2003-03

Algae and algae products - Methods of sampling and analysis - Determination of chlorophyll a content; German version EN 18034:2024
Edition 2025-07

Water quality - Guidance on quantitative and qualitative investigations of marine phytoplankton; German version EN 15972:2011
Edition 2011-11

Algae and algae products - Methods of sampling and analysis - Determination of fucoxanthin, beta carotene and lutein content in microalgae; German and English version prEN 18206:2025
Edition 2025-07

Water quality - Guidance standard on the enumeration of phytoplankton using inverted microscopy (Utermöhl technique); German version EN 15204:2006
Edition 2006-12

Oil and gas industries including lower carbon energy - Specific requirements for offshore structures - Part 1: Metocean design and operating considerations (ISO/DIS 19901-1:2024); English version prEN ISO 19901-1:2024
Edition 2024-09

Water quality - Guidance on the estimation of phytoplankton biovolume; German version EN 16695:2015
Edition 2015-12