# ISO 4013:1978 — Withdrawn and superseded ISO standards For ISO 4013:1978, item title is Concrete — Determination of flexural strength of test specimens; status code is 9599; successor is ISO/DIS 1920-4 | ISO 1920-4:2005; withdrawn / published date is 1978-08-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4013:1978 _(verified: appears in the quote below)_ - **Item title:** Concrete — Determination of flexural strength of test specimens _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/DIS 1920-4 | ISO 1920-4:2005 - **Withdrawn / published date:** 1978-08-01 _(verified: appears in the quote below)_ ## What the source says > 9692,IS,,ISO 4013:1978,Concrete — Determination of flexural strength of test specimens,Béton — Détermination de la résistance à la flexion des éprouvettes,1978-08-01,1,['91.100.30'],ISO/TC 71,9599,,"[29100,40764]","['en','fr']",4,"
Specifies a method for the determination of the flexural strength of test specimens of hardened concrete by means of a constant moment in the centre zone (two-point loading). The centre-point loading may also be used and is given in the annex. Covers test specimen, apparatus, procedure, expression of results and test report.
" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).