DS EN 1822-2:2009
DS EN 1822-2:2009 High Efficiency Air Filters (Epa, Hepa And Ulpa) - Part 2: Aerosol Production, Measuring Equipment, Particle Counting Statistics Pertains to efficient particulate air filters (EPA), high efficiency particulate air filters (HEPA) and ultra low penetration air filters (ULPA) used in the field of ventilation and air conditioning a