BS EN ISO 9308-1:2014+A1:2017 Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora
2017BS EN ISO 9308-1:2014+A1:2017 Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora
2014BS EN ISO 9308-1:2014 Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora
2000BS EN ISO 9308-1:2000 Water quality - Detection and enumeration of Escherichia coli and coliform bacteria - Membrane filtration method