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ASA/ANSI S12.9 PART 4:2021
Current
The latest, up-to-date edition.
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American National Standard Quantities and procedures for description and measurement of environmental sound — Part 4: noise assessment and prediction of long-term community response
Hardcopy , PDF
English
16-12-2021
This Standard specifies methods to assess environmental sounds and to predict the potential annoyance response of a community to outdoor long-term noise from any and all types of environmental sounds from one or more discrete or distributed sound sources.
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