# ISO 9644:2008 — Withdrawn and superseded ISO standards

For ISO 9644:2008, item title is Agricultural irrigation equipment — Pressure losses in irrigation valves — Test method; status code is 9599; successor is ISO 9644:2018; withdrawn / published date is 2008-07-08, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9644:2008 _(verified: appears in the quote below)_
- **Item title:** Agricultural irrigation equipment — Pressure losses in irrigation valves — Test method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 9644:2018
- **Withdrawn / published date:** 2008-07-08 _(verified: appears in the quote below)_

## What the source says

> 43992,IS,,ISO 9644:2008,Agricultural irrigation equipment — Pressure losses in irrigation valves — Test method,Matériel agricole d'irrigation — Pertes de pression dans les vannes d'irrigation — Méthode d'essai,2008-07-08,2,['65.060.35'],ISO/TC 23/SC 18,9599,"[26519,17470]",[68847],['en'],11,<p>ISO 9644:2008 specifies a test method for determining the pressure loss in agricultural irrigation valves under steady-state conditions when water flows through them. The scope and accuracy of the valve performance specifications presented will assist agricultural irrigation system designers in comparing pressure losses through various types of valves.</p>

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).