# ISO 2504:1973 — Withdrawn and superseded ISO standards

For ISO 2504:1973, item title is Radiography of welds and viewing conditions for films — Utilization of recommended patterns of image quality indicators (I.Q.I.); status code is 9599; successor is ISO/CD 2504; withdrawn / published date is 1973-02-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 2504:1973 _(verified: appears in the quote below)_
- **Item title:** Radiography of welds and viewing conditions for films — Utilization of recommended patterns of image quality indicators (I.Q.I.) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/CD 2504
- **Withdrawn / published date:** 1973-02-01 _(verified: appears in the quote below)_

## What the source says

> 7432,IS,,ISO 2504:1973,Radiography of welds and viewing conditions for films — Utilization of recommended patterns of image quality indicators (I.Q.I.),Radiographie de soudures et conditions d'observation des films — Emploi des types recommandés d'indicateurs de qualité d'image (I.Q.I.),1973-02-01,1,['25.160.40'],ISO/TC 44/SC 5,9599,,[7433],"['en','fr']",5,<p>Relates to the conditions for use of recommended patterns of image quality indicators (I.Q.I.) for radiography of welds and viewing conditions for films.</p>

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).