# ISO 1438:1975 — Withdrawn and superseded ISO standards

For ISO 1438:1975, item title is Liquid flow measurement in open channels using thin-plate weirs and Venturi flumes; status code is 9599; successor is ISO 1438-1:1980; withdrawn / published date is 1975-07-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1438:1975 _(verified: appears in the quote below)_
- **Item title:** Liquid flow measurement in open channels using thin-plate weirs and Venturi flumes _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1438-1:1980
- **Withdrawn / published date:** 1975-07-01 _(verified: appears in the quote below)_

## What the source says

> 6033,IS,,ISO 1438:1975,Liquid flow measurement in open channels using thin-plate weirs and Venturi flumes,Mesure de débit des liquides dans les canaux découverts au moyen de déversoirs en mince paroi et canaux Venturi,1975-07-01,1,['17.120.20'],ISO/TC 113,9599,,[6034],"['en','fr']",36,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).