IGS TC-H Webinar: Geotextile Pore Opening Size Measurement using a Porometer or an Optical Test
Webinar hosted by the IGS, recordings are available on the IGS web page, see https://www.geosyntheticssociety.org/council-committees/technical-committees/hydraulic/
Then look for the post: "Filtration Webinar - Recent Advances in Geotextile Filtration Design: Pore Opening Size Measurement using a Porometer or an Optical Test - 26 April 2022"
Videos of all presentations are online on the IGS web page.
2 presentations by Eric Blond are also available here: