BS 6541:1985
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for check character systems for use in information interchange, and guidance on choice and methods of application
Hardcopy , PDF
03-21-2003
English
02-28-1985
National foreword
Committees responsible
Specification
0 Introduction
1 Scope and field of application
Section one: General
2 Definitions
3 Types of systems
4 Compliance and designation
Section two: Pure systems
5 Specification of pure systems
6 Computational methods for pure systems with one check
character
7 Computational methods for pure systems with two check
characters
Section three: Hybrid systems
8 Specification for hybrid systems
9 Computational method for hybrid systems
Annexes
A Criteria for the selection of check character systems
for applications
B Check character systems for other alphabets
Tables
1 Pure systems
2 Hybrid systems
3 Values assigned to characters
4 Pure system weights
5 Summary of criteria for selection of systems
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