Process Safety Calculations is an essential guide for process safety engineers involved in calculating and predicting risks and consequences. The book focuses on calculation procedures based on basic chemistry, thermodynamics, fluid dynamics, conservation equations, kinetics and practical models. This book provides helpful calculations to demonstrate compliance with regulations and standards. Standards such as Seveso directive(s)/COMAH, CLP regulation, ATEX directives, PED directives, REACH regulation, OSHA/NIOSH and UK ALARP are covered, along with risk and consequence assessment, stoichiometry, thermodynamics, stress analysis and fluid-dynamics. Includes realistic engineering models with validation from CFD modeling and/or industry testing Provides an introduction into basic principles that govern process relationships in modern industry Helps the reader find and apply the right principles to the specific problem being solved, mitigated or validated