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BS EN ISO 16890-2:2022 – TC:2023 Edition

BS EN ISO 16890-2:2022 – TC:2023 Edition

$280.87

Tracked Changes. Air filters for general ventilation – Measurement of fractional efficiency and air flow resistance

Published By Publication Date Number of Pages
BSI 2023 168
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This document specifies the aerosol production, the test equipment and the test methods used for measuring fractional efficiency and air flow resistance of air filters for general ventilation. It is intended to be used in conjunction with ISO 16890?1, ISO 16890?3 and ISO 16890?4. The test method described in this document is applicable for air flow rates between 0,25 m3/s (900 m3/h, 530 ft3/min) and 1,5 m3/s (5 400 m3/h, 3 178 ft3/min), referring to a test rig with a nominal face area of 610 mm × 610 mm (24.0 inches × 24.0 inches). This document refers to particulate air filter elements for general ventilation having an ePM1 efficiency less than or equal to 99 % and an ePM10 efficiency greater than 20 % when tested as per the procedures defined within the ISO 16890 series. NOTE      The lower limit for this test procedure is set at a minimum ePM10 efficiency of 20 % since it is very difficult for a test filter element below this level to meet the statistical validity requirements of this procedure. This document is not applicable to filter elements used in portable room-air cleaners.

PDF Catalog

PDF Pages PDF Title
1 30464804
93 A-30404434
94 undefined
97 European foreword
Endorsement notice
103 Foreword
105 Introduction
108 1 Scope
2 Normative references
3 Terms and definitions
109 3.1 Air flow and resistance
3.2 Test device
3.3 Aerosol
110 3.4 Particle counter
3.5 Efficiency
111 3.6 Other terms
4 Symbols and abbreviated terms
4.1 Symbols
113 4.2 Abbreviated terms
5 General test requirements
5.1 Test device requirements
5.2 Test device installation
114 5.3 Test rig requirements
6 Test materials
6.1 Liquid phase aerosol
6.1.1 DiEthylHexylSebacate (DEHS) test aerosol
6.1.2 DEHS properties
6.1.3 Liquid phase aerosol generation
115 6.2 Solid phase aerosol
6.2.1 Potassium chloride (KCl) test aerosol
6.2.2 KCl properties
116 6.2.3 Solid phase aerosol generation
117 6.3 Reference aerosols
6.3.1 Reference aerosol for 0,3 µm to 1,0 µm
6.3.2 Reference aerosol for 1,0 µm to 10,0 µm
6.4 Aerosol loading
118 7 Test equipment
7.1 Test rig
7.1.1 Dimensions
7.1.2 Construction materials
119 7.1.3 Test rig shape
7.1.4 Test rig air supply
7.1.5 Test rig isolation
7.1.6 D/S mixing orifice
120 7.1.7 Aerosol sampling
122 7.1.8 Test rig air flow rate measurement
7.1.9 Resistance to air flow measurement
123 7.1.10 Test devices not measuring 610 mm × 610 mm (24.0 inches × 24.0 inches)
7.1.11 Dust injection testing
124 7.2 Aerosol particle counter
7.2.1 General
7.2.2 OPC sampled size range
7.2.3 OPC particle size ranges
125 7.2.4 Sizing resolution
7.2.5 Calibration
7.2.6 Air flow rate
7.2.7 Zero counting
7.2.8 Dual OPC(s)
7.3 Temperature, relative humidity
126 8 Qualification of test rig and apparatus
8.1 Schedule of qualification testing requirements
8.1.1 General
8.1.2 Qualification testing
8.1.3 Qualification documentation
127 8.2 Qualification testing
8.2.1 Test rig — Pressure system testing
128 8.2.2 OPC — Air flow rate stability test
8.2.3 OPC — Zero test
8.2.4 OPC — Sizing accuracy
129 8.2.5 OPC — Overload test
8.2.6 Aerosol generator — Response time
130 8.2.7 Aerosol generator — Neutralizer
131 8.2.8 Test rig — Air leakage test
8.2.9 Test rig — Air velocity uniformity
132 8.2.10 Test rig — Aerosol uniformity
133 8.2.11 Test rig — Downstream mixing
135 8.2.12 Test rig — Empty test device section pressure
8.2.13 Test rig — 100 % efficiency test and purge time
136 8.2.14 Test rig — Correlation ratio
8.3 Maintenance
8.3.1 General
137 8.3.2 Test rig — Background counts
8.3.3 Test rig — Reference filter test
138 8.3.4 Test rig — Pressure reference test
139 8.3.5 Test rig — Final filter resistance
9 Test methods
9.1 Air flow rate
9.2 Measurement of resistance to air flow
9.3 Measurement of fractional efficiency
9.3.1 Aerosol sampling protocol
9.3.2 Background sampling
140 9.3.3 Testing sequence for a single OPC
144 9.3.4 Testing sequence for dual OPC
145 10 Data reduction and calculations
10.1 Correlation ratio
10.1.1 Correlation ratio general
146 10.1.2 Correlation ratio data reduction
147 10.2 Penetration and fractional efficiency
10.2.1 Penetration and fractional efficiency general
148 10.2.2 Penetration data reduction
150 10.3 Data quality requirements
10.3.1 Correlation background counts
10.3.2 Efficiency background counts
10.3.3 Correlation ratio
151 10.3.4 Penetration
152 10.4 Fractional efficiency calculation
11 Reporting results
11.1 General
11.2 Required reporting elements
11.2.1 Report general
11.2.2 Report values
153 11.2.3 Report summary
154 11.2.4 Report details
157 Annex A (informative) Example
164 Annex B (informative) Resistance to air flow calculation
166 Bibliography

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BS EN ISO 16890-2:2022 - TC
$280.87