ONORM EN 1822-4 : 2012
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 4: DETERMINING LEAKAGE OF FILTER ELEMENTS (SCAN METHOD)
18-04-2019
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 sampling volume flow rate
3.2 sampling duration
3.3 total particle count method
3.4 particle counting and sizing method
3.5 particle flow rate
3.6 particle flow distribution
4 Description of the procedure
5 Test filter
6 Test apparatus
6.1 Set-up of the test apparatus
6.2 Test duct
6.3 Scanning assembly
6.4 Aerosol generation and measurement techniques
7 Test air
8 Test procedure
8.1 General
8.2 Preparatory checks
8.3 Starting up the aerosol generator
8.4 Preparing the test filter
8.5 Testing
9 Evaluation
9.1 Calculating the penetration and the efficiency
9.2 Local penetration
9.3 Mean efficiency
9.4 Classification
10 Test report
10.1 Details of the test filter
10.2 General details of the test parameters
10.3 Test results
11 Maintenance and inspection of the test apparatus
Annex A (normative) Oil thread test
Annex B (normative) Determining the test parameters
Annex C (informative) Example of an application with
evaluation
Bibliography
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.
Committee |
TC 141
|
DocumentType |
Standard
|
PublisherName |
Osterreichisches Normungsinstitut/Austrian Standards
|
Status |
Withdrawn
|
SupersededBy |
Standards | Relationship |
BS EN 1822-4:2009 | Identical |
DIN EN 1822-4:2011-01 | Identical |
NS EN 1822-4 : 2009 | Identical |
NF EN 1822-4 : 2010 | Identical |
EN 1822-4:2009 | Identical |
NBN EN 1822-4 : 2010 | Identical |
UNE-EN 1822-4:2010 | Identical |
SN EN 1822-4 : 2010 | Identical |
NEN EN 1822-4 : 2009 | Identical |
I.S. EN 1822-4:2009 | Identical |
UNI EN 1822-4 : 2010 | Identical |
ONORM EN 1822-5 : 2011 | HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 5: DETERMINING THE EFFICIENCY OF FILTER ELEMENTS |
ONORM EN 1822-1 : 2011 | HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 1: CLASSIFICATION, PERFORMANCE TESTING, MARKING |
ONORM EN 1822-5 : 2011 | HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 5: DETERMINING THE EFFICIENCY OF FILTER ELEMENTS |
ONORM EN 1822-2 : 2010 | HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 2: AEROSOL PRODUCTION, MEASURING EQUIPMENT, PARTICLE COUNTING STATISTICS |
ONORM EN 1822-3 : 2012 | HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 3: TESTING FLAT SHEET FILTER MEDIA |
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