# ISO/R 204:1961 — Withdrawn and superseded ISO standards For ISO/R 204:1961, item title is Non-interrupted creep testing of steel at elevated temperatures; status code is 9599; successor is ISO 204:1997; withdrawn / published date is 1961-06-01, recorded from its source on 2026-08-05. - **Identifier:** ISO/R 204:1961 _(verified: appears in the quote below)_ - **Item title:** Non-interrupted creep testing of steel at elevated temperatures _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 204:1997 - **Withdrawn / published date:** 1961-06-01 _(verified: appears in the quote below)_ ## What the source says > 4069,R,,ISO/R 204:1961,Non-interrupted creep testing of steel at elevated temperatures,Essai non interrompu de fluage de l'acier à température élevée,1961-06-01,1,['77.040.10'],ISO/TC 164/SC 1,9599,,[4070],"['en','fr']",6, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).