# ISO 4946:1984 — Withdrawn and superseded ISO standards

For ISO 4946:1984, item title is Steel and cast iron — Determination of copper content — 2,2'-Diquinolyl spectrophotometric method; status code is 9599; successor is ISO 4946:2016; withdrawn / published date is 1984-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4946:1984 _(verified: appears in the quote below)_
- **Item title:** Steel and cast iron — Determination of copper content — 2,2'-Diquinolyl spectrophotometric method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4946:2016
- **Withdrawn / published date:** 1984-12-01 _(verified: appears in the quote below)_

## What the source says

> 10961,IS,,ISO 4946:1984,"Steel and cast iron — Determination of copper content — 2,2'-Diquinolyl spectrophotometric method","Aciers et fontes — Dosage du cuivre — Méthode spectrophotométrique au 2,2'-biquinolyle",1984-12-01,1,['77.080.01'],ISO/TC 17/SC 1,9599,,[63307],"['en','fr']",6,"<p>This method is applicable to copper contents between 0.02 % (m/m) and 5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international co-operative tests. Annex B includes the graphical representation of precision data.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).