BS ISO 11155-2:2009
Current
The latest, up-to-date edition.
Road vehicles. Air filters for passenger compartments Test for gaseous filtration
Hardcopy , PDF
English
28-02-2009
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement accuracy
4.1 Flow rate
4.2 Pressure
4.3 Temperature
4.4 Relative humidity
4.5 Challenge gas
5 General conditions
5.1 Conditioning of challenge gas
5.2 Cleanliness of influent air
5.3 Challenge gas concentration stability
6 Test contaminants
6.1 Mandatory contaminants
6.2 Optional contaminants
6.3 Other contaminants
7 Test equipment
7.1 General layout
7.2 Test stand performance
7.3 Air supply
7.4 Test duct
7.5 Contaminant generation and supply
7.6 Sampling and analysis of challenge gas
7.7 Test equipment constituents
8 Experimental determination of t[0], using t[lag]
9 Preparation of filter/filter element for testing
10 Test methods
10.1 Purpose
10.2 Air pressure loss
10.3 Preparation of challenge gases
10.4 Determination of efficiency/breakthrough
10.5 Determination of capacity
10.6 Data and analysis
10.7 Determination of desorption (optional)
11 System validation
11.1 Air flow uniformity
11.2 Verification challenge gas stability (without test
filter)
12 Test report
Annex A (normative) - Test stand configuration
Annex B (normative) - Detailed definition and calculation of
t[0] and t[lag]
Annex C (normative) - Capacity determination
Annex D (informative) - Conversion of test contaminant
concentration units
Bibliography
Describes a test comprising several methods for measuring the dynamic gas adsorption of air filters in the passenger compartments of road vehicles.
| Committee |
MCE/21
|
| DevelopmentNote |
Supersedes DD ISO/TS 11155-2 & 07/30167778 DC. (03/2009)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This part of ISO11155 specifies a test comprising several methods for measuring the dynamic gas adsorption of air filters in the passenger compartments of road vehicles. These laboratory test methods are applicable to air filters that improve air quality by reducing concentrations of gaseous, odorous or hazardous components from ambient or re-circulated air, or both, in the vehicle cabin. They provide a means of measuring air pressure loss, as well as gas and vapour removal characteristics.
| Standards | Relationship |
| ISO 11155-2:2009 | Identical |
| EN 779:2012 | Particulate air filters for general ventilation - Determination of the filtration performance |
| ISO 11841-2:2000 | Road vehicles and internal combustion engines — Filter vocabulary — Part 2: Definitions of characteristics of filters and their components |
| ISO/TS 11155-1:2001 | Road vehicles — Air filters for passenger compartments — Part 1: Test for particulate filtration |
| ISO 5167-1:2003 | Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements |
| ISO 5011:2014 | Inlet air cleaning equipment for internal combustion engines and compressors Performance testing |
| ISO 12103-1:2016 | Road vehicles — Test contaminants for filter evaluation — Part 1: Arizona test dust |
| ISO 11841-1:2000 | Road vehicles and internal combustion engines — Filter vocabulary — Part 1: Definitions of filters and filter components |
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