NBN EN 1822-5 : 2010
Current
The latest, up-to-date edition.
HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 5: DETERMINING THE EFFICIENCY OF FILTER ELEMENTS
01-12-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 sampling volume flow rate
3.2 sampling duration
3.3 measuring procedure with fixed sampling
probes
3.4 total particle count method
3.5 particle counting and sizing method
4 Description of the method
4.1 Measurement method using fixed sampling probe
4.2 Scan method
5 Test filter
6 Test apparatus
6.1 Test duct
6.2 Aerosol generation and measurement instruments
7 Test air
8 Test procedure
8.1 Preparatory checks
8.2 Starting up the aerosol generator
8.3 Preparing the test filter
8.4 Testing
9 Evaluation
10 Test report
11 Maintenance and inspection of the test apparatus
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