The fouling indices or filterability indices proposed by J. Laurenty, developed by J.J. Descout and his collaborators, and perfected by M. Gaillard, are currently the only parameters that are able to supply a valid evaluation of the filterability of a liquid. In the past, various methods and devices were proposed for the evaluation of these indices. All had various inconveniences, and that is possibly the reason for the numerous failures encountered with the use of these parameters.
The research and many years of experience of Enologica Vason in the field of filtration have permitted the development of what is currently the most advanced system for the evaluation and the control of the filtration quality of liquids, and in particular, clear beverages: the QUALITY FILTRATION TEST®.
The QUALITY FILTRATION TEST® is an instrument that is able to carry out and calculate automatically the Filterability Index, the Modified Filterability Index, and the Maximum Filtrable Volume. The results, highly repeatable because of the high level of standardization offered by the instrument, are displayed on an LED display, and printed on paper. The QFT is applied to the evaluation of the efficiency of the different filtration systems: streaming filtration, layered filtration, tangential flow filtration, and others. |
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