# ISO 4869-2:1994 — Withdrawn and superseded ISO standards

For ISO 4869-2:1994, item title is Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn; status code is 9599; successor is ISO/PWI 4869-2 | ISO 4869-2:2018; withdrawn / published date is 1994-08-18, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4869-2:1994 _(verified: appears in the quote below)_
- **Item title:** Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/PWI 4869-2 | ISO 4869-2:2018
- **Withdrawn / published date:** 1994-08-18 _(verified: appears in the quote below)_

## What the source says

> 10851,IS,,ISO 4869-2:1994,Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn,Acoustique — Protecteurs individuels contre le bruit — Partie 2: Estimation des niveaux de pression acoustique pondérés A en cas d'utilisation de protecteurs individuels contre le bruit,1994-08-18,1,['13.340.20'],ISO/TC 43/SC 1,9599,,"[42871,65582]","['en','fr']",12,"<p>Describes three methods (the octave-band, HML and SNR methods) for 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 o

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).