# IEC 559:1989 — Withdrawn and superseded ISO standards

For IEC 559:1989, item title is Binary floating-point arithmetic for microprocessor systems; status code is 9599; successor is ISO/IEC/IEEE 60559:2011; withdrawn / published date is 1989-02-01, recorded from its source on 2026-08-05.

- **Identifier:** IEC 559:1989 _(verified: appears in the quote below)_
- **Item title:** Binary floating-point arithmetic for microprocessor systems _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC/IEEE 60559:2011
- **Withdrawn / published date:** 1989-02-01 _(verified: appears in the quote below)_

## What the source says

> 19706,IS,,IEC 559:1989,Binary floating-point arithmetic for microprocessor systems,Arithmétique binaire en virgule flottante pour systèmes à microprocesseurs,1989-02-01,2,['35.160'],ISO/IEC JTC 1/SC 25,9599,[19695],[57469],"['en','fr']",45,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).