# ISO 3747:1987 — Withdrawn and superseded ISO standards

For ISO 3747:1987, item title is Acoustics — Determination of sound power levels of noise sources — Survey method using a reference sound source; status code is 9599; successor is ISO 3747:2000; withdrawn / published date is 1987-05-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3747:1987 _(verified: appears in the quote below)_
- **Item title:** Acoustics — Determination of sound power levels of noise sources — Survey method using a reference sound source _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 3747:2000
- **Withdrawn / published date:** 1987-05-21 _(verified: appears in the quote below)_

## What the source says

> 9243,IS,,ISO 3747:1987,Acoustics — Determination of sound power levels of noise sources — Survey method using a reference sound source,Acoustique — Détermination des niveaux de puissance acoustique émis par les sources de bruit — Méthode de contrôle faisant appel à une source sonore de référence,1987-05-21,1,['17.140.01'],ISO/TC 43/SC 1,9599,,[21749],"['en','fr']",16,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).