# ISO 20462-3:2005 — Withdrawn and superseded ISO standards For ISO 20462-3:2005, item title is Photography — Psychophysical experimental methods for estimating image quality — Part 3: Quality ruler method; status code is 9599; successor is ISO 20462-3:2012; withdrawn / published date is 2005-11-10, recorded from its source on 2026-08-05. - **Identifier:** ISO 20462-3:2005 _(verified: appears in the quote below)_ - **Item title:** Photography — Psychophysical experimental methods for estimating image quality — Part 3: Quality ruler method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 20462-3:2012 - **Withdrawn / published date:** 2005-11-10 _(verified: appears in the quote below)_ ## What the source says > 38334,IS,,ISO 20462-3:2005,Photography — Psychophysical experimental methods for estimating image quality — Part 3: Quality ruler method,Photographie — Méthodes psychophysiques expérimentales pour estimer la qualité d'image — Partie 3: Méthode <>,2005-11-10,1,['37.040.01'],ISO/TC 42,9599,,[54617],['en'],24,"

ISO 20462-3:2005 specifies: the nature of a quality ruler; hardcopy and softcopy implementations of quality rulers; how quality rulers may be generated or obtained; and the standard quality scale (SQS), a fixed numerical scale that may be measured using quality rulers.

" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).