ISO 11957:1996 PDF
Acoustics — Determination of sound insulation performance of cabins — Laboratory and in situ measurements
Acoustics — Determination of sound insulation performance of cabins — Laboratory and in situ measurements
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 28 ноября 1996 г.
- Издание:
- ISO IS 11957 edition 1 version 1
- ICS:
- 17.140.01
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 %.
Abstract
Overview
ISO 11957:1996 - "Acoustics - Determination of sound insulation performance of cabins - Laboratory and in situ measurements" specifies methods to measure how effectively reduce sound pressure level or sound power. The standard covers both a (reverberation room) and (external sound field) and applies to complete cabins with a . It defines quantities such as , and and includes guidance on instrumentation, test environment and reporting.
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