I.S. EN ISO 11691:2020
Current
The latest, up-to-date edition.
Acoustics — Measurement of insertion loss of ducted silencers without flow — Laboratory survey method (ISO 11691:2020)
Hardcopy , PDF
English
14-12-2020
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.
Dates of withdrawal of national standards are available from NSAI.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test facility and arrangement
5 Test procedure
6 Measurement uncertainty
7 Information to be recorded
8 Information to be reported
Bibliography
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