Historical
DIN EN 779:2012
Particulate air filters for general ventilation - Determination of the filtration performance; German version EN 779:2012 (Foreign Standard)
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 filters. It describes testing methods and the test-rig for measuring filter performance.
Deutsches Institut für Normung [din]