NS EN 1822-3 : 2009
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 3: TESTING FLAT SHEET FILTER MEDIA
01-01-2019
01-12-2013
Foreword
1 Scope
2 Normative references
3 Definitions and quantities
4 Description of the test method
5 Sampling of sheet filter media
6 Test apparatus
6.1 Test arrangements for testing with monodisperse
test aerosol
6.2 Test arrangements for testing with a polydisperse
test aerosol
6.3 Test filter mounting assembly
6.4 Determination of the filter medium face velocity
7 Requirements for the test air
8 Testing procedure
8.1 Preparatory checks
8.2 Procedure
8.3 Reference test method
9 Evaluation
10 Test report
11 Maintenance and inspection of the test apparatus
Annex A (informative) Example of an application with
evaluation
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