# ISO 26906:2009 — Withdrawn and superseded ISO standards

For ISO 26906:2009, item title is Hydrometry — Fishpasses at flow measurement structures; status code is 9599; successor is ISO 26906:2015; withdrawn / published date is 2009-03-25, recorded from its source on 2026-08-05.

- **Identifier:** ISO 26906:2009 _(verified: appears in the quote below)_
- **Item title:** Hydrometry — Fishpasses at flow measurement structures _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 26906:2015
- **Withdrawn / published date:** 2009-03-25 _(verified: appears in the quote below)_

## What the source says

> 43894,IS,,ISO 26906:2009,Hydrometry — Fishpasses at flow measurement structures,Hydrométrie — Échelles à poissons auprès des structures mesurant le débit,2009-03-25,1,['17.120.20'],ISO/TC 113/SC 2,9599,,[62435],['en'],29,"<p>ISO 26906:2009 specifies requirements for the integration of fishpasses with flow measurement structures. It identifies those fishpasses which have satisfactory hydrometric calibration data and gives methods for computing combined flows and uncertainties.</p><p>NOTE Measurement structures and fishpasses have inherently different hydraulic performance criteria. Water measurement structures perform better with uniform flow patterns; conversely, fish passage perfor

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).