DS/EN 1822-4:2009
High efficiency air filters (EPA, HEPA and ULPA) - Part 4: Determining leakage of filter elements (scan method)

Standard No.

DS/EN 1822-4:2009

Release Date

2009

Published By

Danish Standards Foundation

Latest

DS/EN 1822-4:2009

Replace

DS/EN 1822-4-2000

Scope

This European Standard applies to efficient air filters (EPA), high efficiency air filters (HEPA) and ultra low penetration air filters (ULPA-filters) used in the field of ventilation and air conditioning and for technical processes, e.g. for applications in clean room technology or pharmaceutical industry.It establishes a procedure for the determination of the efficiency on the basis of a particle counting method using an artificial test aerosol, and allows a standardized classification of these filters in terms of their efficiency.This part of EN 1822 applies to the leak testing of filter elements. The scan method which is described in detail regarding pr

DS/EN 1822-4:2009 history

• 2009 DS/EN 1822-4:2009 High efficiency air filters (EPA, HEPA and ULPA) - Part 4: Determining leakage of filter elements (scan method)