# ISO 9952:1993 — Withdrawn and superseded ISO standards

For ISO 9952:1993, item title is Agricultural irrigation equipment— Check valves; status code is 9599; successor is ISO 9635-3:2006; withdrawn / published date is 1993-03-18, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9952:1993 _(verified: appears in the quote below)_
- **Item title:** Agricultural irrigation equipment— Check valves _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 9635-3:2006
- **Withdrawn / published date:** 1993-03-18 _(verified: appears in the quote below)_

## What the source says

> 17850,IS,,ISO 9952:1993,Agricultural irrigation equipment— Check valves,Matériel agricole d'irrigation — Clapets antiretour,1993-03-18,1,['65.060.35'],ISO/TC 23/SC 18,9599,,[41123],"['en','fr']",8,"<p>Specifies the construction and performance requirements (classification, mechanism, installation, marking, valve body length, connections), and test methods (resistance to internal hydrostatic pressure, tightness, valve opening after tightness test, pressure loss, endurance, tightness after mechanical endurance test) for check valves of nominal sizes 15 mm (0,5 in) up to and including 300 mm (12 in) intended for operation with water at temperatures not exceeding 50 °C, which may contain fertili

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).