Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration method for waters with low bacterial background flora (ISO/DIS 9308-1:2012); German version prEN ISO 9308-1:2012
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); German version EN ISO 9308-1:2014— 17 стр.
