This European Standard refers to particulate air filters for general ventilation. These filters are classified according to their performance as measured in this test procedure.This European Standard contains requirements to be met by particulate air filt
DS/EN 779:2012 history
2012DS/EN 779:2012 Particulate air filters for general ventilation - Determination of the filtration performance
1994DS/EN 779/AC:1994 Particle air filters for general ventilation-Requirements,testing,marking
1993DS/EN 779:1993 Particulate air filters for general ventilation. Requirements, testing, marking