Data Element & Code Sets Directory
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Syntax identifier
 
Coded identification of the agency controlling the syntax, and of the character repertoire used in an interchange.

Notes:
1. The data value consists of the letters 'UN', upper case, identifying the syntax controlling agency, directly followed by an a2 code identifying the character repertoire used.
       
   
S
Old Code
 
 
UNOA
=
UN/ECE level A
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.
     
+
UNOG
=
UN/ECE level G
As defined in ISO 8859-3 : Information processing - Part 3: Latin alphabet.
S4
   
+
UNOH
=
UN/ECE level H
As defined in ISO 8859-4 : Information processing - Part 4: Latin alphabet.
S4
   
+
UNOI
=
UN/ECE level I
As defined in ISO 8859-6 : Information processing - Part 6: Latin/Arabic alphabet.
S4
   
+
UNOJ
=
UN/ECE level J
As defined in ISO 8859-8 : Information processing - Part 8: Latin/Hebrew alphabet.
S4
   
+
UNOK
=
UN/ECE level K
As defined in ISO 8859-9 : Information processing - Part 9: Latin alphabet.
S4
   
4+
UNOW
=
UN/ECE level W
ISO 10646-1 octet with code extension technique to support UTF-8 (UCS Transformation Format, 8 bit) encoding.
     
+
UNOX
=
UN/ECE level X
Code extension technique as defined by ISO 2022 utilising the escape techniques in accordance with ISO 2375.
S4
   
+
UNOY
=
UN/ECE level Y
ISO 10646-1 octet without code extension technique.
S4
   
 
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Edition 2016 Upd. 2021