DS EN 1822-3:2009
DS EN 1822-3:2009 High Efficiency Air Filters (Epa, Hepa And Ulpa) - Part 3: Testing Flat Sheet Filter Media Pertains to high efficiency particulate air filters and ultra low penetration air filters (EPA, HEPA and ULPA) used in the field of ventilation and air conditioning and for technical processes, e.g. f