I.S. EN ISO 11654:1997
Current
The latest, up-to-date edition.
ACOUSTICS - SOUND ABSORBERS FOR USE IN BUILDINGS - RATING OF SOUND ABSORPTION
Hardcopy , PDF
English
01-01-1997
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.
1 Scope
2 Normative references
3 Definitions
4 Calculation
5 Presentation of results
Annexes
A Examples of calculations of alpha w with and without
a shape indicator
B Classification of sound absorbers
C Example of a standardized diagram for alpha s values
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