# ISO 7529:1989 — Withdrawn and superseded ISO standards

For ISO 7529:1989, item title is Nickel alloys — Determination of chromium content — Potentiometric titration method with ammonium iron(II) sulfate; status code is 9599; successor is ISO 7529:2017; withdrawn / published date is 1989-10-26, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7529:1989 _(verified: appears in the quote below)_
- **Item title:** Nickel alloys — Determination of chromium content — Potentiometric titration method with ammonium iron(II) sulfate _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7529:2017
- **Withdrawn / published date:** 1989-10-26 _(verified: appears in the quote below)_

## What the source says

> 14298,IS,,ISO 7529:1989,Nickel alloys — Determination of chromium content — Potentiometric titration method with ammonium iron(II) sulfate,Alliages de nickel — Dosage du chrome — Méthode par titrage potentiométrique avec le sulfate de fer(II) et d'ammonium,1989-10-26,1,['77.120.40'],ISO/TC 155,9599,,[70202],"['en','fr']",5,"<p>Applies to the determination of 1 % (m/m) to 25 % (m/m) chromium content in nickel alloys which do not contain insoluble chromium carbides, and which have a vanadium content of less than 0,2 % (m/m). Specifies principle, reagents, apparatus, sampling and sample preparation, procedure, expression of results, special cases and test report. Examples of composition of some

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).