# ISO 4392-1:1988 — Withdrawn and superseded ISO standards

For ISO 4392-1:1988, item title is Hydraulic fluid power — Determination of characteristics of motors — Part 1: At constant low speed and at constant pressure; status code is 9599; successor is ISO 4392-1:1989; withdrawn / published date is 1988-04-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4392-1:1988 _(verified: appears in the quote below)_
- **Item title:** Hydraulic fluid power — Determination of characteristics of motors — Part 1: At constant low speed and at constant pressure _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4392-1:1989
- **Withdrawn / published date:** 1988-04-21 _(verified: appears in the quote below)_

## What the source says

> 10290,IS,,ISO 4392-1:1988,Hydraulic fluid power — Determination of characteristics of motors — Part 1: At constant low speed and at constant pressure,Transmissions hydrauliques — Détermination des caractéristiques des moteurs — Partie 1: Essai à pression constante et basse vitesse constante,1988-04-21,1,['23.100.10'],ISO/TC 131/SC 8,9599,,[10291],"['en','fr']",,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).