# ISO/IEC 10646-1:1993/Amd 21:1999 — Withdrawn and superseded ISO standards

For ISO/IEC 10646-1:1993/Amd 21:1999, item title is Information technology — Universal Multiple-Octet Coded Character Set (UCS) — Part 1: Architecture and Basic Multilingual Plane — Amendment 21: Sinhala; status code is 9599; successor is ISO/IEC 10646-1:2000; withdrawn / published date is 1999-05-20, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 10646-1:1993/Amd 21:1999 _(verified: appears in the quote below)_
- **Item title:** Information technology — Universal Multiple-Octet Coded Character Set (UCS) — Part 1: Architecture and Basic Multilingual Plane — Amendment 21: Sinhala _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 10646-1:2000
- **Withdrawn / published date:** 1999-05-20 _(verified: appears in the quote below)_

## What the source says

> 30257,IS,Amd,ISO/IEC 10646-1:1993/Amd 21:1999,Information technology — Universal Multiple-Octet Coded Character Set (UCS) — Part 1: Architecture and Basic Multilingual Plane — Amendment 21: Sinhala,Technologies de l'information — Jeu universel de caractères codés à plusieurs octets — Partie 1: Architecture et table multilingue — Amendement 21: Sinhala,1999-05-20,1,['35.040.10'],ISO/IEC JTC 1/SC 2,9599,,[29819],['en'],4,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).