# ISO/R 550:1966 — Withdrawn and superseded ISO standards

For ISO/R 550:1966, item title is Methods of chemical analysis of manganese ores — Determination of titanium content; status code is 9599; successor is ISO 7723:1984; withdrawn / published date is 1966-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO/R 550:1966 _(verified: appears in the quote below)_
- **Item title:** Methods of chemical analysis of manganese ores — Determination of titanium content _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7723:1984
- **Withdrawn / published date:** 1966-12-01 _(verified: appears in the quote below)_

## What the source says

> 4630,R,,ISO/R 550:1966,Methods of chemical analysis of manganese ores — Determination of titanium content,Méthodes d'analyse chimique des minerais de manganèse — Détermination de la teneur en titane,1966-12-01,1,['73.060.20'],ISO/TC 65,9599,,[14556],"['en','fr']",5,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).