# ISO/TS 18621-21:2020 — Withdrawn and superseded ISO standards

For ISO/TS 18621-21:2020, item title is Graphic technology — Image quality evaluation methods for printed matter — Part 21: Measurement of 1D distortions of macroscopic uniformity utilizing scanning spectrophotometers; status code is 9599; successor is ISO/TS 18621-21:2023; withdrawn / published date is 2020-11-20, recorded from its source on 2026-08-05.

- **Identifier:** ISO/TS 18621-21:2020 _(verified: appears in the quote below)_
- **Item title:** Graphic technology — Image quality evaluation methods for printed matter — Part 21: Measurement of 1D distortions of macroscopic uniformity utilizing scanning spectrophotometers _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/TS 18621-21:2023
- **Withdrawn / published date:** 2020-11-20 _(verified: appears in the quote below)_

## What the source says

> 77651,TS,,ISO/TS 18621-21:2020,Graphic technology — Image quality evaluation methods for printed matter — Part 21: Measurement of 1D distortions of macroscopic uniformity utilizing scanning spectrophotometers,Technologie graphique - Méthodes d'évaluation de la qualité d'image pour les imprimés — Partie 21: Mesure des distorsions 1D d'uniformité macroscopique à l'aide de spectrophotomètres à balayage,2020-11-20,1,['37.100.10'],ISO/TC 130,9599,,[83420],['en'],7,"<p>This document defines a measurement method for the evaluation of distortions in the macroscopic uniformity of printed areas that are oriented in the horizontal and vertical direction, such as streaks and bands.</p><p>It provides req

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).