Is there a standard Arabic alphabet representation in Latin ?
The standard is called cat (for Classical Arabic Transliteration) and is the work of Bassem Medawar. The file can be retrieved from the SoL archive by anonymous ftp to rama.poly.edu in pub/reader/text/translit/CAT (a copy is availble on ftp://huez.eurecom.fr/SCL/Transliteration/cat.gz or http://huez.eurecom.fr:8080/SCL/Transliteration/cat.gz [the www.cica.fr, or huez.cica.fr are no more valid] and on http://www.ludvigsen.hiof.no/webdoc/levant_servers.