Hydrology: Current Research

ISSN: 2157-7587

Open Access

Marek Nawalany

Nowowiejska 20, 00-653 Warsaw

  • Research Article
    Fermentation Tube Test Statistics for Indirect Water Sampling
    Author(s): Marek Nawalany and Malgorzata LogaMarek Nawalany and Malgorzata Loga

    By aiming at correction of the existing standards of the Fermentation Tube Test (FTT) this article critically reviews one of the oldest statistical methodologies used in sanitary engineering clearly relevant to health science. The common practice of water works is to perform the FTT on water samples for detecting fecal bacteria contamination in raw water prior to technological processing. Analysis of the Fermentation Tube Test (FTT) statistics presented in the article is to support a hypothesis that “standard FTT procedures may not be compatible with the statistical tables of FTT in the Standard Methods (1998, 2005)”. The inconsistency can be seen from the observation that the standard FTT procedures require subsequent dilution of water samples, which implies the indirect sampling. At the same time, the Standard Methods (1998, 2005) statistical tables used for FTT interpre.. Read More»
    DOI: 10.4172/2157-7587.1000165

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