• Courses
  • How to improve your next LoPA study

How to improve your next LoPA study

Member Course

Hazard and risk analysis



This course is free to approved members

Processes should be designed as far as possible to be inherently safe. Inherent safety principles involve removing or reducing hazardous inventory, or ensuring that the process design is so robust that the likelihood of a hazardous event is extremely low when compared to other risks.

However, it is not always possible to reduce risk to tolerable levels purely using inherent safety measures. Where further risk reduction is required, protection layers will be needed to prevent failures and incidents propagating into accidents. Mitigation layers may also be required to minimise the consequences of hazardous failure events.

The primary objective of a LoPA study is to determine scenario risks in the context of initiating events and independent protection layers. A LoPA study will take selected hazardous scenarios identified during PHA/HAZOP, and assess them in more detail.

Lesson Outline

Text lesson

FAQ's about the Layer of Protection Analysis - LOPA technique.

Video lesson

Learn what LoPA is, why it is used and common mistakes that are made.

About the Presenter

Jon Keswick, CFSE

Jon Keswick is a Certified Functional Safety Expert (CFSE) and founder of eFunctionalSafety. Feel free to make contact via Linked-In or comment on any of the eFunctionalSafety blog pages.

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}