As defined in the basic code table of ISO 646 with the exceptions of lower case letters, alternative graphic character allocations and national or application- oriented graphic character allocations.
UNOB
UN/ECE level B
As defined in the basic code table of ISO 646 with the exceptions of alternative graphic character allocations and national or application-oriented graphic character allocations.
UNOC
UN/ECE level C
As defined in ISO 8859-1 : Information processing - Part 1: Latin alphabet No. 1.
UNOD
UN/ECE level D
As defined in ISO 8859-2 : Information processing - Part 2: Latin alphabet No. 2.
UNOE
UN/ECE level E
As defined in ISO 8859-5 : Information processing - Part 5: Latin/Cyrillic alphabet.
UNOF
UN/ECE level F
As defined in ISO 8859-7 : Information processing - Part 7: Latin/Greek alphabet.