International Standard
ISO 4869-2:2018
Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
Reference number
ISO 4869-2:2018
Edition 2
2018-10
© ISO 2024
International Standard
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Published (Edition 2, 2018)
This standard was last reviewed and confirmed in 2024. Therefore this version remains current.

ISO 4869-2:2018

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CHF 96
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Abstract

This document specifies three methods (the octave-band, HML and SNR methods) of estimating the A-weighted sound pressure levels effective when hearing protectors are worn. The methods are applicable to either the sound pressure level or the equivalent continuous sound pressure level of the noise. Although primarily intended for steady noise exposures, the methods are also applicable to noises containing impulsive components. It is possible that these methods could not be suitable for use with peak sound pressure level measurements.

The octave-band, H, M, L or SNR values are suitable for establishing sound attenuation criteria for selecting or comparing hearing protectors, and/or setting minimum acceptable sound attenuation requirements.

General information

  • Status
     : Published
    Publication date
     : 2018-10
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 18
  • Technical Committee :
    ISO/TC 43/SC 1
    ICS :
    13.340.20 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

3
Good Health and Well-being

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