Functional safety is the task of developing and implementing automatic safety systems used to manage risks in many industries where hazardous processes and machinery are used. _Functional Safety from Scratch: A Practical Guide to Process Industry Applications_ provides a practical guide to functional safety, as applied in the chemical process industry, including the oil and gas, petrochemical, pharmaceutical and energy sectors. Written by a seasoned professional with many years of functional safety experience, this book explains the purpose of the relevant international standard IEC 61511 and how to achieve compliance efficiently. It provides in-depth coverage of the entire lifecycle of a functional safety system, assuming no prior knowledge of functional safety and only a basic understanding of process safety concepts. SIL assessment, the functional safety management plan, the safety requirements specification, verification, validation and functional safety assessment are covered in particular detail. _Functional Safety from Scratch: A Practical Guide to Process Industry Applications _is a highly practical source for process and instrumentation engineers, engineering managers and consultants, whether new to the field or already experienced. * Focuses on the ‘how to’ aspects of functional safety * Provides detailed explanation and guidance on how to develop the safety requirements specification * Includes extensive coverage of safety lifecycle verification, SIS validation, and functional safety assessment * Provides numerous practical exercises to confirm understanding and promote further thought * Includes tips for those preparing for functional safety examinations * Oriented towards an international audience, especially those for whom English is not their first language