# ISO 9026:1991 — Withdrawn and superseded ISO standards For ISO 9026:1991, item title is Raw rubber or unvulcanized compounds — Determination of green strength; status code is 9599; successor is ISO 9026:2007; withdrawn / published date is 1991-11-21, recorded from its source on 2026-08-05. - **Identifier:** ISO 9026:1991 _(verified: appears in the quote below)_ - **Item title:** Raw rubber or unvulcanized compounds — Determination of green strength _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 9026:2007 - **Withdrawn / published date:** 1991-11-21 _(verified: appears in the quote below)_ ## What the source says > 16588,IS,,ISO 9026:1991,Raw rubber or unvulcanized compounds — Determination of green strength,Caoutchouc brut ou mélanges de caoutchoucs non vulcanisés — Détermination de la cohésion à cru,1991-11-21,1,"['83.060','83.040.10']",ISO/TC 45/SC 2,9599,,[45390],"['en','fr']",5,"
Describes the principle, the apparatus, the test piece and its conditioning, the temperature of test, the test procedure, the expression of results, and the contents of the 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).