# ISO 4869-1:1990 — Withdrawn and superseded ISO standards

For ISO 4869-1:1990, item title is Acoustics — Hearing protectors — Part 1: Subjective method for the measurement of sound attenuation; status code is 9599; successor is ISO/PWI 4869-1 | ISO 4869-1:2018; withdrawn / published date is 1990-12-20, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4869-1:1990 _(verified: appears in the quote below)_
- **Item title:** Acoustics — Hearing protectors — Part 1: Subjective method for the measurement of sound attenuation _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/PWI 4869-1 | ISO 4869-1:2018
- **Withdrawn / published date:** 1990-12-20 _(verified: appears in the quote below)_

## What the source says

> 10850,IS,,ISO 4869-1:1990,Acoustics — Hearing protectors — Part 1: Subjective method for the measurement of sound attenuation,Acoustique — Protecteurs individuels contre le bruit — Partie 1: Méthode subjective de mesurage de l'affaiblissement acoustique,1990-12-20,1,['13.340.20'],ISO/TC 43/SC 1,9599,[10849],"[27310,65581]","['en','fr']",7,<p>Specifies a method for measuring sound attenuation at the threshold of hearing. The procedure is designed to yield values close to the maximum attenuation which are not normally attained under field conditions. The values reflect the attenuating characteristics only to the extent that users wear the device in the same manner as did the test subjects. Dat

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).