# ISO 433:1991 — Withdrawn and superseded ISO standards For ISO 433:1991, item title is Conveyor belts — Marking; status code is 9599; successor is ISO 433:2017; withdrawn / published date is 1991-06-20, recorded from its source on 2026-08-05. - **Identifier:** ISO 433:1991 _(verified: appears in the quote below)_ - **Item title:** Conveyor belts — Marking _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 433:2017 - **Withdrawn / published date:** 1991-06-20 _(verified: appears in the quote below)_ ## What the source says > 4446,IS,,ISO 433:1991,Conveyor belts — Marking,Courroies transporteuses — Marquage,1991-06-20,2,['53.040.20'],ISO/TC 41/SC 3,9599,,[73518],"['en','fr']",4, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).