Foreword
0 Introduction
1 Scope
2 Normative references
3 Definitions
4 General considerations
4.1 Safety objectives in the design
4.2 General strategy for design
4.3 Process for the selection and design of safety measures
4.4 Principles for ergonomic design
5 Characteristics of safety functions
6 Categories
6.1 General
6.2 Specifications of categories
6.3 Selection and combination of safety-related parts to
different categories
7 Fault consideration
7.1 General
7.2 Fault exclusion
8 Validation
8.1 General
8.2 Validation plan
8.3 Validation by analysis
8.4 Validation by testing
8.5 Validation report
9 Maintenance
10 Information for use
Annexes
A (informative) Questionnaire for the design process
B (informative) Guidance for the selection of categories
C (informative) List of some significant faults and
failures for various technologies
D (informative) Relationship between safety, reliability
and availability for machinery
E (informative) Bibliography
ZA (informative) Clauses of this European Standard
addressing essential requirements or other provisions
of EU directives