Filter cassette assembly for a passive well-type aerosol particle sampler with a tracked membrane

Abstract

The utility model "Filter cassette unit of a well-type passive aerosol particle sampler with a track membrane" relates to means for passive collection of aerosol samples of atmospheric air and is intended for capturing aerosol particles, wherein the unit comprises a housing with an inlet, a well cavity and a seat, a support ring and a pressure ring, between which a track membrane in the form of a disk made of polyethylene terephthalate with a thickness of 5–25 μm with through cylindrical pores with a diameter of 0.1–10 μm at a density of 10⁴–10⁸ pores / cm² is fixed, located perpendicular to the axis of the inlet at a distance of 5–50 mm from it, and the technical result consists in increasing the reproducibility of passive collection of aerosol particles and ensuring the suitability of the membrane as a sediment carrier for direct microscopic, spectrometric and / or radiometric analysis.