Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method (ISO 9308-2:2012); German version EN ISO 9308-2:2014— 55 стр.
German standard methodes for the examination of water, waste water und sludge; microbiological methods (group K); determination of Escherichia coli and coliform organisms (K6)— 16 стр.
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method (ISO 9308-2:2012); German version FprEN ISO 9308-2:2013
Water quality - Requirements for establishing performance characteristics of quantitative microbiological methods (ISO 13843:2017); German version EN ISO 13843:2017— 81 стр.
Microbiology of food, animal feed and water - Preparation, production, storage and performance testing of culture media (ISO 11133:2014 + Amd 1:2018); German version EN ISO 11133:2014 + A1:2018— 120 стр.