CEN Guide to the Use of Character Sets in EuropeTC 304

8-Bit Character Sets - EN 1923

Current edition

EN 1923 (to be published)
European character repertoires and their coding - 8 bit single byte coding (first edition).


European Standard EN 1923 specifies the graphic character repertoires, and their coding, which are available for use for information interchange between information processing systems and for use within such systems, in the scripts that are commonly used by the members of CEN and the institutions of the European Union and the European Free Trade Association.

EN 1923 is a successor to three European Pre-standards, namely ENV 41503, ENV 41505 and ENV 41508.

Tutorial guidance

EN 1923 specifies a number of repertoires of characters selected from the Latin, Greek and Cyrillic scripts and a further repertoire of symbols. Each repertoire is assigned a name and a mnemonic. The names and mnemonics are:

A number of options are specified within the standard, each of which identifies a requirement to support one or more of the above repertoires. When 8-bit single-byte coding is used to support of any of the identified options, it is required to conform to ISO/IEC 4873 at one of its three levels of implementation.

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