# ISO 12737:1996 — Withdrawn and superseded ISO standards For ISO 12737:1996, item title is Metallic materials — Determination of plane-strain fracture toughness; status code is 9599; successor is ISO 12737:2005; withdrawn / published date is 1996-11-14, recorded from its source on 2026-08-05. - **Identifier:** ISO 12737:1996 _(verified: appears in the quote below)_ - **Item title:** Metallic materials — Determination of plane-strain fracture toughness _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 12737:2005 - **Withdrawn / published date:** 1996-11-14 _(verified: appears in the quote below)_ ## What the source says > 1579,IS,,ISO 12737:1996,Metallic materials — Determination of plane-strain fracture toughness,Matériaux métalliques — Détermination du facteur d'intensité de contrainte critique,1996-11-14,1,['77.040.10'],ISO/TC 164/SC 4,9599,,[40887],"['en','fr']",17,

Method for determining the plan-strain fracture toughness of homogeneous metallic materials using a specimen that is notched and precracked by fatigue.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).