DIN EN ISO 9308-1 : 2017 Title: Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration method for waters with low bacterial background flora (ISO 9308-1:2014 + Amd 1:2016) (includes Amendment A1:2017) Year: 2017 Publisher: DIN Media GmbH Availability: Within 1-2 working days