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This Document Has Been Superseded
A newer publication replaces it: BSI BS ISO/IEC 7064
Specification for check character systems for use in information interchange, and guidance on choice and methods of application
SPECIFICATION FOR CHECK CHARAC
Describes 8 check character systems capable of protecting strings against errors that occur when people copy or key data; includes **conformance requirements for products** described as generating check characters or checking strings using those systems.
Includes guidance on selection of check character systems for application.
Excludes systems designed specifically to:
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