M-020.09.514 [2023-07] Mineral, spring and table water, testing for E. coli and coliform bacteria using DEV-endo agar

Application/Purpose

The method describes the determination of E. coli and coliform bacteria in mineral, spring and table water (Annex 2, point 1.1b/1.2b to § 4 para. 3 of the German Mineral and Table Water Ordinance of 1 August 1984, as amended on 5 July 2017).

Scope of Application

Mineral, spring and table waters as well as drinking waters that are to be marketed.

Principle

Qualitative detection of Escherichia coli and coliform bacteria in mineral, spring and table water, and other drinking water bottled for distribution to the consumer, by means of membrane filtration (MF) and placing the filter on endo agar [1].

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