DIN EN ISO 9308-2 E : 2014

National foreword<br>National Annex NA (informative) - Bibliography<br>Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Principle<br>5 Apparatus and glassware<br>6 Culture media and reagents<br>7 Sampling<br>8 Procedure<br>9 Expression of results<br>10 Test report<br>11 Quality assurance<br>Annex A (informative) - Further microbiological<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;information on coliform bacteria<br>Annex B (normative) - The Quanti-Tray Sealer<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and calculation of results<br>Annex C (informative) - Composition of the Colilert-18 medium<br>Annex D (informative) - Validation of Colilert-18/Quanti-Tray<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for the enumeration of E.coli and coliform bacteria<br>from water<br>Bibliography

Defines a method for the enumeration of E. coli and coliform bacteria in water. The method is based on the growth of target organisms in a liquid medium and calculation of the 'Most Probable Number' (MPN) of organisms by reference to MPN tables.