DIN ISO 16649-1 : 2020 Title: Microbiology of the food chain - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli - Part 1: Colony-count technique at 44 °C using membranes and 5-bromo-4-chloro-3-indolyl beta-D-glucuronide (ISO 16649-1:2018) Year: 2020 Publisher: DIN Media GmbH Availability: Within 1-2 working days