Qualifier Value

Qualifier values of 0505 in D05B

Filter function, coded (an1..3)

Identification of the filtering function used to reversibly map any bit pattern on to a restricted character set.

Code Description
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.