I.S. EN ISO 9053-2:2020
Current
The latest, up-to-date edition.
Acoustics - Determination of airflow resistance - Part 2: Alternating airflow method (ISO 9053-2:2020)
Hardcopy , PDF
English
26-10-2020
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Principle
6 Equipment
7 Test specimens
8 Test procedure
9 Uncertainty
10 Test report
Annex A (normative) Effective ratio of specific heats for air
Annex B (informative) Acoustic model of the flow
Annex C (informative) Calculation of uncertainty
Annex D (informative) Airflow resistance of perforated support
Bibliography
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