[1] Published on February 23, 1995 by the International Organization for Standardization,[2] the major advantage ISO 9 has over other competing systems is its univocal system of one character for one character equivalents (by the use of diacritics), which faithfully represents the original spelling and allows for reverse transliteration, even if the language is unknown.
[1] The standard features three mapping tables: the first covers contemporary Slavic languages, the second older Slavic orthographies (excluding letters from the first), and the third non-Slavic languages (including most letters from the first).
The following combined table shows characters for various Slavic, Iranian, Romance, Turkic, Uralic, Mongolic, Caucasian, Tungusic, Paleosiberian and other languages of the former USSR which are written in Cyrillic.
The following text is a fragment of the Preamble of the Universal Declaration of Human Rights in Bulgarian:[15] ISO Recommendation No.
The languages covered are Russian (RU), Belarusian (BE), Ukrainian (UK), Bulgarian (BG), Serbo-Croatian (SH) and Macedonian (MK).