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ISO 23742:2024PublishedTest method for the evaluation of permeability and filtration efficiency distribution of bag filter mediumInternational Standard · Published 7 Jun 2024 · ISO/TC 142 ISO 28902-1:2012PublishedAir quality — Environmental meteorology — Part 1: Ground-based remote sensing of visual range by lidarInternational Standard · Published 20 Jan 2012 · ISO/TC 146/SC 5