| 1 | ASCII 7 bit |
| ASCII 7 bit code. |
| 2 | ASCII 8 bit |
| ASCII 8 bit code. |
| 3 | Code page 850 (IBM PC Multinational) |
| Encoding schema for the repertoire as defined by the code page. |
| 4 | Code page 500 (EBCDIC Multinational No. 5) |
| Encoding schema for the repertoire as defined by the code page. |
| 5 |
| UCS-2 |
| Universal Multiple-Octet Coded Character Set (UCS) two-octet per character encoding schema as defined in ISO/IEC 10646-1. |
| 6 |
| UCS-4 |
| Universal Multiple-Octet Coded Character Set (UCS) four-octet per character encoding schema as defined in ISO/IEC 10646-1. |
| 7 |
| UTF-8 |
| UCS Transformation Format 8 (UTF-8) multi-octet (of length one to six octets) per character encoding schema as defined in ISO/IEC 10646-1, Annex R. |
| 8 |
| UTF-16 |
| UCS Transformation Format 16 (UTF-16) two-octet per character encoding schema as defined in ISO/IEC 10646-1, Annex Q. |
| ZZZ | Mutually agreed |
| Mutually agreed between trading partners. |