German standard methods for the examination of water, waste water and sludge; Microbiological methods (Group K); Preparation for the microbiological examination of water samples (K1)
German title
Deutsche Einheitsverfahren zur Wasser-, Abwasser- und Schlammuntersuchung; Mikrobiologische Verfahren (Gruppe K); Vorbereitung zur mikrobiologischen Untersuchung von Wasserproben (K 1)
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