NEN EN 1822-2 : 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Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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 2: AEROSOL PRODUCTION, MEASURING EQUIPMENT, PARTICLE COUNTING STATISTICS
10-01-2018
01-12-2013
Foreword
1 Scope
2 Normative references
3 Definitions
4 Aerosol production
4.1 Aerosol substances
4.2 Producing monodisperse aerosols
4.3 Generating polydisperse aerosols
4.4 The neutralization of aerosols
4.5 Minimum performance parameters for
aerosol generators
4.6 Sources of error
4.7 Maintenance and inspection
5 Measuring devices
5.1 Optical particle counters
5.2 Condensation nucleus counter
5.3 Differential mobility analyser
5.4 Particle size analysis system on the
basis of differential mobility analysis
5.5 Dilution systems
5.6 Differential pressure measuring equipment
5.7 Absolute pressure measuring equipment
5.8 Thermometers
5.9 Hygrometer
6 Maintenance and inspection intervals
7 Particle counting statistics
Annex A (informative) Bibliography
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