# ISO 10250:1994 — Withdrawn and superseded ISO standards For ISO 10250:1994, item title is Metallic materials — Hardness testing — Tables of Knoop hardness values for use in tests made on flat surfaces; status code is 9599; successor is ISO 4545-4:2005; withdrawn / published date is 1994-09-08, recorded from its source on 2026-08-05. - **Identifier:** ISO 10250:1994 _(verified: appears in the quote below)_ - **Item title:** Metallic materials — Hardness testing — Tables of Knoop hardness values for use in tests made on flat surfaces _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4545-4:2005 - **Withdrawn / published date:** 1994-09-08 _(verified: appears in the quote below)_ ## What the source says > 18291,IS,,ISO 10250:1994,Metallic materials — Hardness testing — Tables of Knoop hardness values for use in tests made on flat surfaces,Matériaux métalliques — Essai de dureté — Tableaux des valeurs de dureté Knoop pour utilisation dans les essais effectués sur surfaces planes,1994-09-08,1,['77.040.10'],ISO/TC 164/SC 3,9599,,[37738],"['en','fr']",21,

Gives a table for calculation of Knoop hardness values for use in tests carried out in accordance with ISO 4545.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).