# ISO 532:1975 — Withdrawn and superseded ISO standards

For ISO 532:1975, item title is Acoustics — Method for calculating loudness level; status code is 9599; successor is ISO/DIS 532-1 | ISO 532-1:2017; withdrawn / published date is 1975-07-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 532:1975 _(verified: appears in the quote below)_
- **Item title:** Acoustics — Method for calculating loudness level _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/DIS 532-1 | ISO 532-1:2017
- **Withdrawn / published date:** 1975-07-01 _(verified: appears in the quote below)_

## What the source says

> 4603,IS,,ISO 532:1975,Acoustics — Method for calculating loudness level,Acoustique — Méthode de calcul du niveau d'isosonie,1975-07-01,1,['17.140.01'],ISO/TC 43,9599,,"[45100,63077]","['en','fr']",18,"<p>Specifies two methods for determining a single numerical value of a given sound, the first method is based on physical measurements, such as spectrum analyses in octave bands, the second method is based on spektrum analyses in one-third octave bands.</p>"

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).