# ISO/CIE 10527:1991 — Withdrawn and superseded ISO standards For ISO/CIE 10527:1991, item title is CIE standard colorimetric observers; status code is 9599; successor is ISO 10527:2007; withdrawn / published date is 1991-12-17, recorded from its source on 2026-08-05. - **Identifier:** ISO/CIE 10527:1991 _(verified: appears in the quote below)_ - **Item title:** CIE standard colorimetric observers _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 10527:2007 - **Withdrawn / published date:** 1991-12-17 _(verified: appears in the quote below)_ ## What the source says > 18596,IS,,ISO/CIE 10527:1991,CIE standard colorimetric observers,Observateurs de référence colorimétriques CIE,1991-12-17,1,['17.180.20'],CIE,9599,,[37408],"['en','fr']",25, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).