This technical report provides guidelines for verifying the safety integrity level (SIL) of safety instrumented functions in industrial automation systems. It is designed to help ensure that safety instrumented systems (SIS) meet specified performance requirements and contribute to overall process safety. The document focuses on methods for SIL verification, including testing, assessment, and documentation procedures. It applies to the design, installation, operation, and maintenance of SIS across various industries, particularly those with high safety risks such as petrochemical, pharmaceutical, and chemical manufacturing sectors.
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