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  • BSI
    BS ISO 4869-6:2019 Acoustics. Hearing protectors - Determination of sound attenuation of active noise reduction earmuffs
    Edition: 2019
    $313.97
    / user per year

Description of BS ISO 4869-6:2019 2019

This document is concerned with active noise reduction (ANR) earmuffs. It specifies the test methods for the determination of the active insertion loss and calculation procedures for deriving the total attenuation. For this aim, the values of sound attenuation in the passive mode also have to be known and are determined according to ISO 4869‑1. These methods are intended for steady noise exposures and are not applicable to noises containing impulsive components.

The test methods account for the acoustical interaction between the wearer and the device using measurements of passive (REAT) and active microphone-in-real-ear (MIRE) measurements as specified in ISO 4869‑1 and ISO 11904‑1, respectively.



Standard NumberBS ISO 4869-6:2019
TitleAcoustics. Hearing protectors - Determination of sound attenuation of active noise reduction earmuffs
StatusConfirmed
Publication Date2019-02-05
Identical National Standard OfISO 4869-6:2019
DescriptorsAcoustics, Noise control (acoustic), Testing conditions, Sound intensity, Protective clothing, Acoustic measurement, Ear muffs, Test equipment, Sound insulation, Acoustic testing, Safety devices, Ear protectors
ICS13.340.20 Head protective equipment
CommitteeEH/1/1
ISBN978 0 580 86901 3
PublisherBSI
Pages20

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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