# ISO 4545-2:2005 — Withdrawn and superseded ISO standards For ISO 4545-2:2005, item title is Metallic materials — Knoop hardness test — Part 2: Verification and calibration of testing machines; status code is 9599; successor is ISO 4545-2:2017; withdrawn / published date is 2005-11-17, recorded from its source on 2026-08-05. - **Identifier:** ISO 4545-2:2005 _(verified: appears in the quote below)_ - **Item title:** Metallic materials — Knoop hardness test — Part 2: Verification and calibration of testing machines _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4545-2:2017 - **Withdrawn / published date:** 2005-11-17 _(verified: appears in the quote below)_ ## What the source says > 37736,IS,,ISO 4545-2:2005,Metallic materials — Knoop hardness test — Part 2: Verification and calibration of testing machines,Matériaux métalliques — Essai de dureté Knoop — Partie 2: Vérification et étalonnage des machines d'essai,2005-11-17,1,['77.040.10'],ISO/TC 164/SC 3,9599,[10456],[63983],"['en','fr']",14,"

ISO 4545-2:2005 specifies the method of verification of testing machines for determining Knoop hardness for metallic materials in accordance with ISO 4545-1. It covers test forces from 0,098 07 N to 19,614 N. The method is recommended only for indentations with diagonals greater than or equal to 0,020 mm.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).