# ISO 506:1974 — Withdrawn and superseded ISO standards For ISO 506:1974, item title is Natural rubber latex — Determination of volatile fatty acid number; status code is 9599; successor is ISO 506:1985 | ISO 506:1992; withdrawn / published date is 1974-04-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 506:1974 _(verified: appears in the quote below)_ - **Item title:** Natural rubber latex — Determination of volatile fatty acid number _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 506:1985 | ISO 506:1992 - **Withdrawn / published date:** 1974-04-01 _(verified: appears in the quote below)_ ## What the source says > 4561,IS,,ISO 506:1974,Natural rubber latex — Determination of volatile fatty acid number,Latex de caoutchouc naturel — Détermination de l'indice d'acide gras volatil,1974-04-01,1,['83.040.10'],ISO/TC 45,9599,,"[4562,4563]","['en','fr']",3, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).