# ISO 121:1980 — Withdrawn and superseded ISO standards

For ISO 121:1980, item title is Magnesium-aluminium-zinc alloy ingots and alloy castings — Chemical composition and mechanical properties of sand cast reference test bars; status code is 9599; successor is ISO 16220:2000; withdrawn / published date is 1980-08-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 121:1980 _(verified: appears in the quote below)_
- **Item title:** Magnesium-aluminium-zinc alloy ingots and alloy castings — Chemical composition and mechanical properties of sand cast reference test bars _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 16220:2000
- **Withdrawn / published date:** 1980-08-01 _(verified: appears in the quote below)_

## What the source says

> 3923,IS,,ISO 121:1980,Magnesium-aluminium-zinc alloy ingots and alloy castings — Chemical composition and mechanical properties of sand cast reference test bars,Lingots et pièces moulées en alliages magnésium-aluminium-zinc — Composition chimique et caractéristiques mécaniques des éprouvettes de référence moulées en sable,1980-08-01,1,['77.150.01'],ISO/TC 79/SC 5,9599,[3924],[28573],"['en','fr']",2,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).