# ISO 21018-1:2008 — Withdrawn and superseded ISO standards

For ISO 21018-1:2008, item title is Hydraulic fluid power — Monitoring the level of particulate contamination of the fluid — Part 1: General principles; status code is 9599; successor is ISO/NP 21018-1 | ISO 21018-1:2024; withdrawn / published date is 2008-04-16, recorded from its source on 2026-08-05.

- **Identifier:** ISO 21018-1:2008 _(verified: appears in the quote below)_
- **Item title:** Hydraulic fluid power — Monitoring the level of particulate contamination of the fluid — Part 1: General principles _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/NP 21018-1 | ISO 21018-1:2024
- **Withdrawn / published date:** 2008-04-16 _(verified: appears in the quote below)_

## What the source says

> 35611,IS,,ISO 21018-1:2008,Hydraulic fluid power — Monitoring the level of particulate contamination of the fluid — Part 1: General principles,Transmissions hydrauliques — Surveillance du niveau de pollution particulaire des fluides — Partie 1: Principes généraux,2008-04-16,1,['23.100.60'],ISO/TC 131/SC 6,9599,,"[69538,84019]","['en','fr']",24,"<p>ISO 21018-1:2008 specifies methods and techniques that are applicable to the monitoring of particulate contamination levels in hydraulic systems. It also describes the relative merits of various techniques so that the correct monitor for a given application can be selected.</p><p>The techniques described in ISO 21018-1:2008 are suitable for monitor

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).