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| 0505 -  | 
Filter function, codedUN/EDIFACT Syntax Version 4 Release 1 Service Code List
 |  |  | Repr: | an..3 |  | Desc: | Identification of the filtering function used to reversibly map any bit pattern on to a restricted character set. |  
 |  | This table also occurs in the following versions of this standard: 40000, 40001, 40002, 40003, 40004, 40005, 40006, 40007, 40100, 40101, 40102
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| 1 | No filter |  |  | No filter function is used. |  | 2 | Hexadecimal filter |  |  | Hexadecimal filter. |  | 3 | ISO 646 filter |  |  | ASCII filter as described in DIS 10126-1. |  | 4 | ISO 646 Baudot filter |  |  | Baudot filter as described in DIS 10126-1. |  | 5 | UN/EDIFACT EDA filter |  |  | Filter function for UN/EDIFACT character set repertoire A as described in Part 5 of ISO 9735. |  | 6 | UN/EDIFACT EDC filter |  |  | Filter function for UN/EDIFACT character set repertoire A as described in Part 5 of ISO 9735. |  | 7 | Base 64 filter |  |  | Base 64 filter function as described in RFC 1521. |  | ZZZ | Mutually agreed |  |  | Mutually agreed between trading partners. |  
 
			
				| Change indicators |  
				| plus sign |   | An addition. |  
				| asterisk |   | Addition/substraction/change to a code entry for a particular data element. |  
				| hash or pound sign |   | Changes to names. |  
				| vertical bar |   | Changes to text for descriptions, notes and functions. |  
				| minus sign |   | A deletion. |  
				| letter X |   | Marked for deletion. |  Return to EDIFACT 40100 Code List page.
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