Cosmetics - Microbiology - General instructions for microbiological examination (ISO 21148:2017); German version EN ISO 21148:2017
Edition 2017-09

Plant biostimulants - Determination of Azobacter spp.; German and English version prEN 17709:2023
Edition 2023-05

Milk - Quantitative determination of microbiological quality - Guidance for establishing and verifying a conversion relationship between results of an alternative method and anchor method results (ISO 21187:2021); German version EN ISO 21187:2021
Edition 2021-06

Microbiological analysis of milk; detection of Streptococcus agalactiae in untreated milk
Edition 1987-09

Animal feeding stuffs: Methods of sampling and analysis - Detection and enumeration of Saccharomyces cerevisiae used as feed additive; German version EN 15789:2021
Edition 2022-02

Indoor air - Part 16: Detection and enumeration of moulds - Sampling by filtration (ISO 16000-16:2008)
Edition 2009-12

Microbiology of the food chain - Horizontal method for the detection and enumeration of Listeria monocytogenes and of Listeria spp. - Part 2: Enumeration method (ISO 11290-2:2017); German version EN ISO 11290-2:2017
Edition 2017-09

Biotechnology - Guidance on assessment of the purity, biological activity and stability of microorganism based products; German version EN 12689:1998
Edition 1998-10

Chemical disinfectants and antiseptics - Quantitative suspension test for the evaluation of mycobactericidal activity of chemical disinfectants and antiseptics used in the veterinary area - Test method and requirements (phase 2, step 1); German version EN 14204:2012
Edition 2013-02

Microbiology of food and animal feeding stuffs - Horizontal method for the determination of low numbers of presumptive Bacillus cereus - Most probable number technique and detection method (ISO 21871:2006); German version EN ISO 21871:2006
Edition 2006-04