# ISO 439:1982 — Withdrawn and superseded ISO standards

For ISO 439:1982, item title is Steel and cast iron — Determination of total silicon — Gravimetric method; status code is 9599; successor is ISO 439:1994; withdrawn / published date is 1982-08-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 439:1982 _(verified: appears in the quote below)_
- **Item title:** Steel and cast iron — Determination of total silicon — Gravimetric method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 439:1994
- **Withdrawn / published date:** 1982-08-01 _(verified: appears in the quote below)_

## What the source says

> 4453,IS,,ISO 439:1982,Steel and cast iron — Determination of total silicon — Gravimetric method,Aciers et fontes — Dosage du silicium total — Méthode gravimétrique,1982-08-01,1,['77.080'],ISO/TC 17/SC 1,9599,[4452],[4454],"['en','fr']",3,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).