I.S. EN 61508-6:2010

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions and abbreviations
Annex A (informative) - Application of IEC 61508-2 and of
        IEC 61508-3
Annex B (informative) - Example of technique for evaluating
        probabilities of hardware failure
Annex C (informative) - Calculation of diagnostic coverage
        and safe failure fraction - worked example
Annex D (informative) - A methodology for quantifying the
        effect of hardware-related common cause failures in
        E/E/PE systems
Annex E (informative) - Example applications of software
        safety integrity tables of IEC 61508-3
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Provides a brief overview of the requirements of IEC 61508-2 and IEC 61508-3 and sets out the functional steps in their application. Also provides an example technique for calculating the probabilities of hardware failure and should be read in conjunction with 7.4.3 and Annex C of IEC 61508-2 and Annex D.