NEN EN 1822-4:2000被替代
High Efficiency Particulate Air Filters (hepa And Ulpa) - Part 4: Determining Leakage Of Filter Element (scan Method)
出版：Nederlands Normalisatie Instituut
专家解读视频
Applicable to high efficiency air filters and ultra low penetration air filters (HEPA- and ULPA-filters) for use in the field of air conditioning and ventilation and for the technical processes, e.g. for clean room technology or applications in the nuclear or pharmaceutical industry. It gives a method for determining the efficiency on 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.
Draft issued in April 2008. (04/2008)
BS EN 1822-4:2000 - Identical
SN EN 1822-4:2000 - Identical
DIN EN 1822-4 (2001-02) - Identical
ONORM EN 1822-4:2000 - Identical
NBN EN 1822-4:2000 - Identical
NF EN 1822-4:2000 - Identical
UNI EN 1822-4:2002 - Identical
I.S. EN 1822-4:2000 - Identical
NS EN 1822-4 Ed. 1 (2000) - Identical
UNE EN 1822-4:2001 - Identical
SS EN 1822-4 Ed. 1 (2000) - Identical
