BS EN ISO 13849-2 specifies the procedures and conditions that should be followed to validate equipment safety and the safety related parts of control systems. This is done through the analysis and testing of the safety functions provided, and using the design rationale of the designer. The standard doesn’t give complete validation requirements for programmable electronic systems, so the user might need to refer to other standards too.
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. The standard then explains validation by analysis, testing and safety devices and measures. It also looks environmental and maintenance requirements.
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EN ISO 13849-2:2008
ISO 13849-2:2003