Diameter of a unit density (1 g cm-3) sphere that has same terminal settling velocity in air as the particle of interest. (Adapted from ICRP Publication 130, 2015)
ICRP Glossary entry - May 2019
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Diameter (µm) of unit density sphere that has same terminal settling velocity in air as the particle of interest. (From ICRP Publication 119, 2012)
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