FILTRATION ASSEMBLY COMPRISING A FILTER AND A FILTER SUPPORT AND ASSOCIATED METHOD FOR THE COLLECTION AND ANALYSIS OF NANOPARTICLES

摘要

The invention relates to a filtration assembly for filtering nanoparticles, including: a filter having pores that can retain nanoparticles likely to be found in an air flow passing through the filter; and a filter support including two parts. A lower base-forming part includes a peripheral bearing surface on which the filter can rest. An upper ring-shaped part is designed to be mounted around the bearing surface of the base. By mounting the ring around the bearing surface of the base it is possible to tension the filter radially to the direction of mounting, the mounting clearance between the ring and the bearing surface of the base being dimensioned such as to maintain the filter resting on the bearing surface under mechanical stress by means of pinching, in a direction radial to the mounting direction.