ONORM EN 1822-4:2012现行
High Efficiency Air Filters (Epa, Hepa And Ulpa) - Part 4: Determining Leakage Of Filter Elements (Scan Method)
出版：Osterreichisches Normungsinstitut
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.
I.S. EN 1822-4:2009 - Identical
BS EN 1822-4:2009 - Identical
NEN EN 1822-4:2009 - Identical
NF EN 1822-4:2010 - Identical
NS EN 1822-4:2009 - Identical
UNI EN 1822-4:2010 - Identical
SS EN 1822-4 Ed. 2 (2009) - Identical
NBN EN 1822-4:2010 - Identical
SN EN 1822-4:2010 - Identical
UNE EN 1822-4:2010 - Identical
DIN EN 1822-4 (2011-01) - Identical
NEN EN 1822-4 : 2009 - Identical
DIN EN 1822-4 : 2011 - Identical
I.S. EN 1822-4:2009 - Identical
DIN EN 1822-4 E : 2011 - Identical
