Animal feeding stuffs: Methods of sampling and analysis - Detection and enumeration of Lactobacillus spp. used as feed additive; German version EN 15787:2021
Edition 2022-02

Indoor air - Part 17: Detection and enumeration of moulds - Culture-based method (ISO 16000-17:2008)
Edition 2010-06

Plant biostimulants - Determination of microorganisms' concentration; German and English version prEN 17714:2023
Edition 2023-05

Plant biostimulants - Detection of Vibrio spp.; German and English version prEN 17711:2023
Edition 2023-05

German standard methods for the examination of water, waste water and sludge - Bio-assays (group L) - Part 37: Determination of the inhibitory effect of water on the growth of bacteria (Photobacterium phosphoreum cell multiplication inhibition test) (L 37)
Edition 1999-04

Cosmetics - Microbiology - Enumeration and detection of aerobic mesophilic bacteria (ISO 21149:2017 + Amd 1:2022); German version EN ISO 21149:2017 + A1:2022
Edition 2023-01

Water quality - Detection and enumeration of Pseudomonas aeruginosa - Method by membrane filtration (ISO 16266:2006); German version EN ISO 16266:2008
Edition 2008-05

Water quality - Evaluation in an aqueous medium of the "ultimate" aerobic biodegradability of organic compounds - Method by analysis of biochemical oxygen demand (closed bottle test) (ISO 10707:1994); German version EN ISO 10707:1997
Edition 1998-03

Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 2: Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test (ISO 14855-2:2018); German version EN ISO 14855-2:2018
Edition 2018-12

Soil quality - Determination of potential nitrification and inhibition of nitrification - Rapid test by ammonium oxidation (ISO 15685:2012); German version EN ISO 15685:2020
Edition 2021-02