# ISO 9104:1991 — Withdrawn and superseded ISO standards

For ISO 9104:1991, item title is Measurement of fluid flow in closed conduits — Methods of evaluating the performance of electromagnetic flow-meters for liquids; status code is 9599; successor is ISO 20456:2017; withdrawn / published date is 1991-04-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9104:1991 _(verified: appears in the quote below)_
- **Item title:** Measurement of fluid flow in closed conduits — Methods of evaluating the performance of electromagnetic flow-meters for liquids _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 20456:2017
- **Withdrawn / published date:** 1991-04-11 _(verified: appears in the quote below)_

## What the source says

> 16699,IS,,ISO 9104:1991,Measurement of fluid flow in closed conduits — Methods of evaluating the performance of electromagnetic flow-meters for liquids,Mesure de débit des fluides dans les conduites fermées — Méthodes d'évaluation de la performance des débitmètres électromagnétiques utilisés pour les liquides,1991-04-11,1,['17.120.10'],ISO/TC 30/SC 5,9599,,[68092],"['en','fr']",18,<p>The methods specified are intended for use by manufacturers to determine the performance of their products and by users to verify manufacturer's performance specifications. The test conditions represent those which commonly arise during use. The values specified herein should be used where no other values are sp

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).