Information technology. Security techniques. Check character systems shop-only Operator-initiated actions

Operator-initiated actions

Beam detectors with a minimum separation between the components defining the optical path in excess of 10 m are not covered by this standard because the dimensions of the fire test room described in BS 5445-9 preclude subjecting such detectors to the fire sensitivity test

6 Marine environment

Narrow strip and cut lengths with widths of less than 600 mm

Information technology. Security techniques. Check character systems shop-only Operator-initiated actionsBS ISO IEC 7064: 2003 specifies a set of check character systems capable of protecting strings against errors which occur when people copy or type data. The strings may be of fixed or variable length and may have character sets which are numeric, alphabetic and alphanumeric (letters and digits). Contents: Scope Terms and definitions Symbols and notation Types of systems Compliance and designation Specification of pure systems Computational methods for