# ISO/TR 9993:1989 — Withdrawn and superseded ISO standards

For ISO/TR 9993:1989, item title is Plain bearings — Testing of the tribological behaviour of bearing materials for oil lubrication application — Running-in under mixed lubrication conditions; status code is 9599; successor is ISO 7148-2:1999; withdrawn / published date is 1989-12-14, recorded from its source on 2026-08-05.

- **Identifier:** ISO/TR 9993:1989 _(verified: appears in the quote below)_
- **Item title:** Plain bearings — Testing of the tribological behaviour of bearing materials for oil lubrication application — Running-in under mixed lubrication conditions _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7148-2:1999
- **Withdrawn / published date:** 1989-12-14 _(verified: appears in the quote below)_

## What the source says

> 17906,TR,,ISO/TR 9993:1989,Plain bearings — Testing of the tribological behaviour of bearing materials for oil lubrication application — Running-in under mixed lubrication conditions,Paliers lisses — Essai de propriétés tribologiques des matériaux pour paliers lubrifiés à l'huile — Aptitude au rodage dans des conditions de lubrification en régime mixte,1989-12-14,1,['21.100.10'],ISO/TC 123/SC 2,9599,,[20994],"['en','fr']",5,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).