# ISO 4546:1993 — Withdrawn and superseded ISO standards

For ISO 4546:1993, item title is Metallic materials — Hardness test — Verification of Knoop hardness testing machines; status code is 9599; successor is ISO 4545-2:2005; withdrawn / published date is 1993-03-18, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4546:1993 _(verified: appears in the quote below)_
- **Item title:** Metallic materials — Hardness test — Verification of Knoop hardness testing machines _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4545-2:2005
- **Withdrawn / published date:** 1993-03-18 _(verified: appears in the quote below)_

## What the source says

> 10456,IS,,ISO 4546:1993,Metallic materials — Hardness test — Verification of Knoop hardness testing machines,Matériaux métalliques — Essai de dureté — Contrôle des machines d'essai de dureté Knoop,1993-03-18,1,['77.040.10'],ISO/TC 164/SC 3,9599,,[37736],"['en','fr']",4,"<p>Specifies a direct and an indirect method with test forces up to and including 9,807 N applicable only for indentations with long diagonals longer than or equal to 20 micrometres.</p>"

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).