EN 1822-2:2009

High efficiency air filters (EPA, HEPA and ULPA) - Part 2: Aerosol production, measuring equipment, particle counting statistics EN 1822-2:2009

Publication date:   May 21, 2010

General information

99.60 Withdrawal effective   Oct 10, 2018

CEN

CEN/TC 195 Cleaning equipment for air and other gases

European Norm

13.040.40   Stationary source emissions

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Scope

This European Standard applies 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 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 a liquid (or alternatively a solid) test aerosol, and allows a standardized classification of these filters in terms of their efficiency, both local and integral efficiency.
This European Standard describes the measuring instruments and aerosol generators used in the course of this testing. With regard to particle counting it specifies the statistical basis for the evaluation of counts with only small numbers of counted events.

Life cycle

PREVIOUSLY

WITHDRAWN
EN 1822-2:1998

NOW

WITHDRAWN
EN 1822-2:2009
99.60 Withdrawal effective
Oct 10, 2018

REVISED BY

PUBLISHED
EN ISO 29463-2:2018