# ISO 18314-4:2020 — Withdrawn and superseded ISO standards For ISO 18314-4:2020, item title is Analytical colorimetry — Part 4: Metamerism index for pairs of samples for change of illuminant; status code is 9599; successor is ISO 18314-4:2024; withdrawn / published date is 2020-08-14, recorded from its source on 2026-08-05. - **Identifier:** ISO 18314-4:2020 _(verified: appears in the quote below)_ - **Item title:** Analytical colorimetry — Part 4: Metamerism index for pairs of samples for change of illuminant _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 18314-4:2024 - **Withdrawn / published date:** 2020-08-14 _(verified: appears in the quote below)_ ## What the source says > 72315,IS,,ISO 18314-4:2020,Analytical colorimetry — Part 4: Metamerism index for pairs of samples for change of illuminant,Analyse colorimétrique — Partie 4: Indice de métamérisme de paires d'échantillons pour changement d'illuminant,2020-08-14,1,['87.060.10'],ISO/TC 256,9599,,[85116],"['en','fr']",23,"
This document specifies a formalism for the calculation of the illuminant metamerism of solid surface colours. It cannot be applied to colours of effect coatings without metrical adaptation.
This document only covers the phenomenon of metamerism for change of illuminant, which has the greatest meaning in practical application. In the case of chromaticity coordinates of a pair of sampl ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).