What is this standard about?
BS ISO 13849-2:2012 specifies the procedures and conditions to be followed for the validation of specified safety functions through analysis and testing in accordance with ISO 13849-1.
The standard specifies the procedures and conditions that should be followed to validate equipment safety and the safety related parts of control systems. This is achieved through the analysis and testing of the safety functions provided based on the rationale of the designer.
How does it work?
BS EN ISO 13849-2 first looks at the validation process, covering the validation principles, generic fault lists, as well as validation plans and records. It then explains validation by analysis, testing and safety devices and measures whilst considering environmental and maintenance requirements.
The analysis should be started as early as possible in, and in parallel with, the design process. Problems can then be corrected early while they are still relatively easy to correct.
This latest standard allows access to:
- Validation plans
- Generic fault lists
- Information for validation
- Analysis techniques
- Measurement accuracy
- Number of test samples
Who should buy it?
- Suppliers of control systems
- Inspectors
- Quality assessors
- Occupational safety officers
- Regulatory bodies
Contents
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
