ISO/IEC 10646:2020 

Information technology - Universal coded character set (UCS)


Abstract

This document
- specifies the architecture of the UCS;
- defines terms used for the UCS;
- describes the general structure of the UCS codespace;
- specifies the assigned planes of the UCS: the Basic Multilingual Plane (BMP) of the UCS, the Supplementary Multilingual Plane (SMP), the Supplementary Ideographic Plane (SIP), the Tertiary Ideographic Plane (TIP), and the Supplementary Special-purpose Plane (SSP);
- defines a set of graphic characters used in scripts and the written form of languages on a world-wide scale;
- specifies the names for the graphic characters and format characters of the BMP, SMP, SIP, TIP, SSP and their coded representations within the UCS codespace;
- specifies the coded representations for control characters and private use characters;
- specifies three encoding forms of the UCS: UTF-8, UTF-16, and UTF-32;
- specifies seven encoding schemes of the UCS: UTF-8, UTF-16, UTF-16BE, UTF-16LE, UTF-32, UTF-32BE, and UTF-32LE;
- specifies the management of future additions to this coded character set.
NOTE The determination of suitability of these characters for use as identifiers in programming languages is not specified by this document but can be found in an external reference. See Annex U.

Additional information

Publication typeInternational Standard
Publication date2020-12-21
Edition6.0
Available language(s)ERRORcom.ibm.jscript.InterpretException: Script interpreter error, line=21, col=25: 'result' is null
TC/SCISO/IEC JTC 1/SC 2 - Coded character setsrss
ICS35.040.10 - Coding of character sets

The following test report forms are related:



Share this page


Share your publications

Learn how to share your publications with your colleagues, using networking options.

Payment information

Our prices are in Swiss francs (CHF). We accept all major credit cards (American Express, Mastercard and Visa), PayPal and bank transfers as form of payment.


Keep in touch

Keep up to date with new publication releases and announcements with our free IEC Just Published email newsletter.

Contact customer services

Please send your enquiry by email or call us on +41 22 919 02 11 between 09:00 – 17:00 CET Monday to Friday.