Layer of protection analysis (LOPA) for risk-based evaluation of scenarios

LOPA is a widely used methodology for risk based assessments of process related scenarios in the process industries. Since a standardization of how to use the method is vital to end up with consistent and robust results, an Austrian working group with participants from authorities, industry and risk experts established this guideline. It should help the user in the application of LOPA also by means of eight worked examples coming from industrial practice.