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

Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium - Method by measuring the oxygen demand in a closed respirometer (ISO 14851:2019); German version EN ISO 14851:2019
Edition 2019-07

Microbiology of the food chain - Method validation - Part 4: Protocol for method validation in a single laboratory (ISO 16140-4:2020); German version EN ISO 16140-4:2020
Edition 2020-12

Plastics - Determination of the degree of disintegration of plastic materials under composting conditions in a laboratory-scale test (ISO 20200:2023); German version EN ISO 20200:2023
Edition 2023-11

Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:2012); German version EN ISO 14238:2013
Edition 2014-03

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

Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999); German version EN ISO 6222:1999
Edition 1999-07

Soil quality - Laboratory methods for determination of microbial soil respiration (ISO 16072:2002); German version EN ISO 16072:2011
Edition 2011-09

Chemical disinfectants and antiseptics - Quantitative suspension test for the evaluation of bactericidal activity of chemical disinfectants and antiseptics used in the veterinary area - Test method and requirements (phase 2, step 1); German version EN 1656:2019
Edition 2019-12

Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018); German version EN ISO 20130:2020
Edition 2021-02