The sentence states:
The KeyType element shall contain a symbol composed of four (4) characters from the set of 52 upper and lower case ASCII letters A-Z (0x41-0x5A) and a-z (0x61-0x7A).
For compliance with ISO, the ranges should be stated as:
"...ASCII letters A to Z (0x41 to 0x5A) and a to z (0x61 to 0x7A).
The sentence states: The
KeyTypeelement shall contain a symbol composed of four (4) characters from the set of 52 upper and lower case ASCII letters A-Z (0x41-0x5A) and a-z (0x61-0x7A).For compliance with ISO, the ranges should be stated as: "...ASCII letters A to Z (0x41 to 0x5A) and a to z (0x61 to 0x7A).