International Organization for Standardization (ISO)
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ISO 11957:1996
Scope
Describes a laboratory method and in situ methods for the determination of the sound insulation performance of sound-protecting cabins. Applicable to sound-protecting cabins with a leak ratio smaller than 2 %.
ISO 11957:1996 history
1996ISO 11957:1996 Acoustics - Determination of sound insulation performance of cabins - Laboratory and in situ measurements