# ISO 1438-1:1980/Amd 1:1998 — Withdrawn and superseded ISO standards For ISO 1438-1:1980/Amd 1:1998, item title is Water flow measurement in open channels using weirs and Venturi flumes — Part 1: Thin-plate weirs — Amendment 1; status code is 9599; successor is ISO 1438:2008; withdrawn / published date is 1998-04-16, recorded from its source on 2026-08-05. - **Identifier:** ISO 1438-1:1980/Amd 1:1998 _(verified: appears in the quote below)_ - **Item title:** Water flow measurement in open channels using weirs and Venturi flumes — Part 1: Thin-plate weirs — Amendment 1 _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 1438:2008 - **Withdrawn / published date:** 1998-04-16 _(verified: appears in the quote below)_ ## What the source says > 6035,IS,Amd,ISO 1438-1:1980/Amd 1:1998,Water flow measurement in open channels using weirs and Venturi flumes — Part 1: Thin-plate weirs — Amendment 1,Mesure de débit de l'eau dans les canaux découverts au moyen de déversoirs et de canaux Venturi — Partie 1: Déversoirs en mince paroi — Amendement 1,1998-04-16,1,['17.120.20'],ISO/TC 113/SC 2,9599,,[38066],['en'],4, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).