Microbiology of the food chain - Preparation of test samples, initial suspension and decimal dilutions for microbiological examination - Part 4: Specific rules for the preparation of miscellaneous products (ISO 6887-4:2017); German version EN ISO 6887-4:2017
Edition 2017-07

Medical microbiology - Diagnosis of tuberculosis - Part 3: Detection of mycobacteria by culture methods; Text in German and English
Edition 2011-03

Algae and algae products - Identification of the biomass of microalgae, macroalgae, cyanobacteria and Labyrithulomycetes - Detection and identification with morphological and/or molecular methods; German version EN 17477:2021
Edition 2021-10

Biotechnology - Large-scale process and production - Guidance on equipment selection and installation in accordance with the biological risk; German version EN 12460:1998
Edition 1998-04

Water quality - Detection and enumeration of Escherichia coli and coliform bacteria in surface and waste water - Part 3: Miniaturized method (most probable number) by inoculation in liquid medium (ISO 9308-3:1998); German version EN ISO 9308-3:1998
Edition 1999-07

Water quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (most probable number) by inoculation in liquid medium (ISO 7899-1:1998); German version EN ISO 7899-1:1998
Edition 1999-07

Dentistry - Evaluation of antibacterial activity of dental restorative materials, luting materials, fissure sealants and orthodontic bonding or luting materials (ISO 3990:2023); German version EN ISO 3990:2023
Edition 2023-12

Molecular biomarker analysis - Method for the statistical evaluation of analytical results obtained in testing sub-sampled groups of genetically modified seeds and grains - General requirements (ISO 22753:2021, Corrected version 2022-11); German version EN ISO 22753:2022
Edition 2023-03

Water quality - Detection of human enteroviruses by monolayer plaque assay; German version EN 14486:2005
Edition 2005-08

Biotechnology - Large-scale process and production - Plant building according to the degree of hazard; German version EN 1620:1996
Edition 1996-10