ISO/IEC 8859-13:1998, Information technology — 8-bit single-byte coded graphic character sets — Part 13: Latin alphabet No.
7, is part of the ISO/IEC 8859 series of ASCII-based standard character encodings, first edition published in 1998.
It is similar to the earlier-published[2] Windows-1257; its encoding of the Estonian alphabet also matches IBM-922.
[3] ISO-8859-13 is the IANA preferred charset name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429.
[4] Differences from ISO-8859-1 have the Unicode code point number below the character.