DIN EN ISO 21528-1:2017-09 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 1: Detection of Enterobacteriaceae (ISO 21528-1:2017); German version EN ISO 21528-1:2017
2017DIN EN ISO 21528-1:2017-09 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 1: Detection of Enterobacteriaceae (ISO 21528-1:2017); German version EN ISO 21528-1:2017
2017DIN EN ISO 21528-1:2017 Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 1: Detection of Enterobacteriaceae (ISO 21528-1:2017); German version EN ISO 21528-1:2017
2009DIN ISO 21528-1:2009 Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Part 1: Detection and enumeration by MPN technique with pre-enrichment (ISO 21528-1:2004)