Dr. Nicolas Petillon
PhD in chemical engineering and physico-chemistry graduated from INPL (University of Lorraine – Nancy). Specialist in liquid solid filter testing for 25 years as Test lab manager by IFTS (Institut de la Filtration et des Techniques séparatives – independant filter testing Services lab since 1981). Previous experience in the automotive industry as R&D project leader in oil filtration modules. Lecturer at the university of Caen in chemical engineering. Chairman at ISO committees in filter testing. Active project leader inside ISO committees (already 5 testing procedures under standardization).
Upgrading of the existing standards to qualify nano and microfiltration water filter cartridges
Unlike lubricating oil or fuel filtration fields, process fluid filtration is not broadly standardized in the world. Only French organizations such as AFNOR has developed in 2000’s a full set of 11 NFX 45 300 standards to qualify and quantify the performances of liquid filters from 1 to 25 µm. These 11 standardized procedures had been written for the nuclear industry in the first time and then submitted in 2007 at the European level to the water conditioning equipment inside buildings (EN 13443 parts 1 and 2) from 1 to 150 µm. After 15 years, it appears that the nowadays procedures need to be upgraded and expanded to the nanofiltration field. A first step had been dealing with adjusting the particle size distribution of the well-known silica test dust to the expected filtration ratings in order to prevent from filter cake processing which misleads the exact characteristics of solid separation of the filter cartridge. A second step had been to expand the quantification procedure to nanofiltration cartridges (ratings varying from 0,1 to 1 µm) with monosized latex beads. The conference to be held will describe the test dust underuse, the adapted optics vs. the filtration ratings (light scattering technics vs. light extinctions sensors) and all the corresponding evolutions which lead to improvements in terms of better reliability in the results and reduction of the uncertainties when qualifying liquid filter cartridges.