# ISO 974:1980 — Withdrawn and superseded ISO standards For ISO 974:1980, item title is Plastics — Determination of the brittleness temperature by impact; status code is 9599; successor is ISO 974:2000; withdrawn / published date is 1980-06-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 974:1980 _(verified: appears in the quote below)_ - **Item title:** Plastics — Determination of the brittleness temperature by impact _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 974:2000 - **Withdrawn / published date:** 1980-06-01 _(verified: appears in the quote below)_ ## What the source says > 5410,IS,,ISO 974:1980,Plastics — Determination of the brittleness temperature by impact,Plastiques — Détermination de la température de fragilité au choc,1980-06-01,1,['83.080.01'],ISO/TC 61/SC 2,9599,,[28169],"['en','fr']",7, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).