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BS ISO 23351-1:2020

Current
Current

The latest, up-to-date edition.

Acoustics. Measurement of speech level reduction of furniture ensembles and enclosures Laboratory method
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-07-2020

Publisher

British Standards Institution

This document specifies a laboratory method to facilitate the comparison of furniture ensembles and enclosures with respect to their ability to reduce the speech level of the occupant speaking inside the product.

This document specifies a laboratory method to facilitate the comparison of furniture ensembles and enclosures with respect to their ability to reduce the speech level of the occupant speaking inside the product.

In this method, the sound power level is measured in two scenarios: 1) without the product, and 2) with the product. During scenario 1), the test signal is produced by the sound source in an empty room while the product is absent. During scenario 2), the test signal is produced by the sound source inside the product in the occupant’s position. Level reduction is the difference of the sound power levels measured in the two scenarios in 1/1-octave frequency bands from 125Hz to 8000Hz. Speech level reduction is a single-number quantity that expresses the corresponding reduction in A-weighted sound power level of standard speech within the entire frequency range from 125Hz to 8000Hz.

The method is applicable for entire furniture ensembles or enclosures, which form a unity that serves one or several occupants, and which are also used to provide improved speech privacy.

This method is not intended for single components used in workstations, such as a screen, a storage unit, a table, a luminaire, a cupboard, a bookshelf, a standard chair, a wall absorber or a ceiling absorber.

Committee
EH/1/6
DocumentType
Standard
ISBN
9780539007671
Pages
24
PublisherName
British Standards Institution
Status
Current

Standards Relationship
ISO 23351-1:2020 Identical

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Hardcopy - English
PDF - English
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