# ISO 5990:1983 — Withdrawn and superseded ISO standards For ISO 5990:1983, item title is Photographic grade potassium sulfite, 650 g/l aqueous solution — Specification; status code is 9599; successor is ISO 5990:1996; withdrawn / published date is 1983-10-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 5990:1983 _(verified: appears in the quote below)_ - **Item title:** Photographic grade potassium sulfite, 650 g/l aqueous solution — Specification _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 5990:1996 - **Withdrawn / published date:** 1983-10-01 _(verified: appears in the quote below)_ ## What the source says > 12184,IS,,ISO 5990:1983,"Photographic grade potassium sulfite, 650 g/l aqueous solution — Specification",Sulfite de potassium en solution aqueuse à 650 g/l de qualité photographique — Spécifications,1983-10-01,1,['37.040.30'],ISO/TC 42,9599,,[20055],"['en','fr']",5, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).