BS EN ISO 13849-2:2012

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Validation process
5 Validation by analysis
6 Validation by testing
7 Validation of safety requirements specification
   for safety functions
8 Validation of safety functions
9 Validation of performance levels and categories
10 Validation of environmental requirements
11 Validation of maintenance requirements
12 Validation of technical documentation and
   information for use
Annex A (informative) - Validation tools for
        mechanical systems
Annex B (informative) - Validation tools for
        pneumatic systems
Annex C (informative) - Validation tools for
        hydraulic systems
Annex D (informative) - Validation tools for
        electrical systems
Annex E (informative) - Example of validation of
        fault behaviour and diagnostic means
Bibliography

Describes the procedures and conditions to be followed for the validation by analysis and testing of: - the specified safety functions, - the category achieved, and - the performance level achieved by the safety-related parts of a control system (SRP/CS) designed in accordance with ISO 13849-1.

This part of ISO13849 specifies the procedures and conditions to be followed for the validation by analysis and testing of

• the specified safety functions,

• the category achieved, and

• the performance level achieved

by the safety-related parts of a control system (SRP/CS) designed in accordance with ISO13849-1.

NOTE Additional requirements for programmable electronic systems, including embedded software, are given in ISO13849-1:2006, 4.6, and IEC61508 .