# ISO 20623:2003 — Withdrawn and superseded ISO standards

For ISO 20623:2003, item title is Petroleum and related products — Determination of the extreme-pressure and anti-wear properties of fluids — Four ball method (European conditions); status code is 9599; successor is ISO 20623:2017 | ISO/CD 20623; withdrawn / published date is 2003-11-25, recorded from its source on 2026-08-05.

- **Identifier:** ISO 20623:2003 _(verified: appears in the quote below)_
- **Item title:** Petroleum and related products — Determination of the extreme-pressure and anti-wear properties of fluids — Four ball method (European conditions) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 20623:2017 | ISO/CD 20623
- **Withdrawn / published date:** 2003-11-25 _(verified: appears in the quote below)_

## What the source says

> 34238,IS,,ISO 20623:2003,Petroleum and related products — Determination of the extreme-pressure and anti-wear properties of fluids — Four ball method (European conditions),Pétrole et produits connexes — Détermination des propriétés extrême pression et anti-usure des fluides — Essai quatre billes (conditions européennes),2003-11-25,1,['75.100'],ISO/TC 28,9599,,"[70737,43229]","['en','fr']",17,"<p>ISO 20623:2003 specifies procedures for the measurement of the extreme-pressure (EP) and anti-wear properties of lubricating oils and fluids by means of the four ball machine. The conditions of test are those that apply in Europe and other areas that have similar electrical supply characteristics (20

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).