Historical
BS EN 1822-3:1998
High efficiency air filters (HEPA and ULPA). Testing flat sheet filter media (British Standard)
This European Standard applies to high efficiency particulate air filters and ultra low penetration air filters (HEPA and ULPA) used in the field of ventilation and air conditioning and for technical process, e.g. for clean room technology or applications in the nuclear and pharmaceutical industry. It established a procedure for the determination of the basis of a particle counting method using a liquid test aerosol, and allows a standardized classification of these filters in terms of their efficiency.
CONTENT PROVIDER
British Standards Institution [bsi]
British Standards Institution [bsi]