BS EN 1822-4:2000 High efficiency air filters (HEPA and ULPA). Determining leakage of filter element (scan method) (Withdrawn)
Publication Year
2000
Document Status
Withdrawn
Abstract
Applies to high efficiency air filters and ultra low penetration air filters (HEPA- and ULPA-filters) used in the field of ventilation and air conditioning and for technical processes, e.g. for clean room technology or applications in the nuclear or pharmaceutical industry. A procedure is established for the determination of the efficiency on the basis of a particle counting method using a liquid test aerosol, and allows a standardised classification of these filters in terms of their efficiency. This part of the standard applies to the leak testing of filter elements. The scan method which is described in detail regarding procedure, apparatus and test conditions is valid for the complete range of HEPA- and ULPA-filters.
Document History
Superseded by BS EN 1822-4:2009.
ISBN
0580364585
Publisher Information
British Standards Institution
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
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