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
02-28-2009
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
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