# ISO 4534:1980 — Withdrawn and superseded ISO standards For ISO 4534:1980, item title is Vitreous and porcelain enamels — Determination of fluidity behaviour — Fusion flow test; status code is 9599; successor is ISO 4534:2010; withdrawn / published date is 1980-12-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4534:1980 _(verified: appears in the quote below)_ - **Item title:** Vitreous and porcelain enamels — Determination of fluidity behaviour — Fusion flow test _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4534:2010 - **Withdrawn / published date:** 1980-12-01 _(verified: appears in the quote below)_ ## What the source says > 10446,IS,,ISO 4534:1980,Vitreous and porcelain enamels — Determination of fluidity behaviour — Fusion flow test,Émaux vitrifiés — Détermination du comportement de fluidité — Essai d'écoulement,1980-12-01,1,['25.220.50'],ISO/TC 107,9599,,[46318],"['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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).