# ISO 12135:2016 — Withdrawn and superseded ISO standards

For ISO 12135:2016, item title is Metallic materials — Unified method of test for the determination of quasistatic fracture toughness; status code is 9599; successor is ISO 12135:2021; withdrawn / published date is 2016-11-09, recorded from its source on 2026-08-05.

- **Identifier:** ISO 12135:2016 _(verified: appears in the quote below)_
- **Item title:** Metallic materials — Unified method of test for the determination of quasistatic fracture toughness _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 12135:2021
- **Withdrawn / published date:** 2016-11-09 _(verified: appears in the quote below)_

## What the source says

> 60891,IS,,ISO 12135:2016,Metallic materials — Unified method of test for the determination of quasistatic fracture toughness,Matériaux métalliques — Méthode unifiée d'essai pour la détermination de la ténacité quasi statique,2016-11-09,2,['77.040.10'],ISO/TC 164/SC 4,9599,"[51353,35554]",[78208],['en'],98,"<p>ISO 12135:2016 specifies methods for determining fracture toughness in terms of K, δ, J and R-curves for homogeneous metallic materials subjected to quasistatic loading. Specimens are notched, precracked by fatigue and tested under slowly increasing displacement. The fracture toughness is determined for individual specimens at or after the onset of ductile crack extension or at the onse

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).