IEST updates recommended practice for filter media testing

摘要

A revised edition of the Recommended Practice (RP) Testing HEPA and ULPA Filter Media is available from the US Institute of Environmental Sciences and Technology (IEST).rnIEST-RP-CC021.3 discusses test methods for physical and filtration properties of high-efficiency paniculate air (HEPA) and ultrarnlow penetration air (ULPA) filtration media.