ISO 233

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The international standard ISO 233 establishes a system for romanization of Arabic script. It was supplemented by ISO 233-2 in 1993 which is specific for Arabic language.

The table below shows the consonants for the Arabic language.

ISO 233-2:1993 is an ISO schema for the simplified transliteration of Arabic characters into Roman characters and is dedicated to "Arabic language – Simplified transliteration".

This transliteration system was adopted as an amendment to ISO 233:1984. It is used mainly in library context, and was introduced because ISO 233 was not meeting the indexing purposes, which are essential for the consistency of library catalogs.

According to ISO 233-2(1993), Arabic words are vocalized prior to romanization.

ISO 233-2 is used in French libraries^[1] and in North African libraries, and is recommended by ISSN for establishing key titles when cataloguing serials.

ISO 233-3:1999 is dedicated to "Persian language – Simplified transliteration".

ISO/R 233 is an earlier standard that has been withdrawn.^[2]

• Arabic transliteration
• DIN 31635
• List of ISO transliterations

• Transliteration of Non-Roman Scripts -A collection of writing systems and transliteration tables, by Thomas T. Pedersen. PDF reference charts include ISO 233.
• ISO 233:1984
• ISO 233-2:1993
• ISO 233-3:1999