Water quality; detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia); part 1: method by enrichment in a liquid medium (ISO 6461-1:1986); german version EN 26461-1:1993— 10 стр.
Water quality - Sampling - Part 1: Guidance on the design of sampling programmes and sampling techniques (ISO 5667-1:2006); German version EN ISO 5667-1:2006— 40 стр.
German standard methods for the examination of water, waste water and sludge; microbiological methods (group K); detection of spores from sulfite-reducing anaerobes (clostridia) (K 7)— 8 стр.
German standard methods for the examination of water, waste water and sludge; microbiological methods (group K); detection of spores from sulfite-reducing anaerobes (clostridia) (K 7)— 8 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.