# ISO 4406:1999 — Withdrawn and superseded ISO standards

For ISO 4406:1999, item title is Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles; status code is 9599; successor is ISO 4406:2017; withdrawn / published date is 1999-12-02, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4406:1999 _(verified: appears in the quote below)_
- **Item title:** Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4406:2017
- **Withdrawn / published date:** 1999-12-02 _(verified: appears in the quote below)_

## What the source says

> 21463,IS,,ISO 4406:1999,Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles,Transmissions hydrauliques — Fluides — Méthode de codification du niveau de pollution particulaire solide,1999-12-02,2,"['75.120','23.100.60']",ISO/TC 131/SC 6,9599,[10311],[72618],"['en','fr']",7,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).