Health, Safety and Environment

Probability of Failure on Demand (PFD)

The Probability of Failure on Demand (PFD) is a critical metric in safety and reliability engineering. It quantifies the likelihood that a system or Safety Instrumented Function (SIF) will fail

A Step-by-Step Guide to Conducting a LOPA Study

Layers of Protection Analysis Methodology LOPA (Layers of Protection Analysis) is a semi-quantitative method used to evaluate and analyze risk scenarios with significant consequences or the potential for major accidents.

Tips for Hazard Identification in Process Safety

Hazard identification is a foundational step in process safety, aiming to proactively recognize potential hazards that could lead to incidents. Here are some effective tips for thorough hazard identification: Techniques

Process Safety Time

Process Safety time is the minimum time the process takes to move from its condition when the initiating event occurs to its condition when it will cause consequence of concern

Types of Fires in Petroleum Industry

Fires in the hydrocarbon industry can vary greatly in their causes, behaviours, and potential consequences. Understanding the different types of fires is crucial for effective fire prevention and control. From

Independent Protection Layers in LOPA

An Independent Protection Layer (IPL) is a device, system, or action that is capable of preventing a scenario from proceeding to its undesired consequence, independent of the initiating event or

Spurious Trip Explained

What is the Spurious Trip? A spurious trip or safe failure would be a time when the process is in normal operation and the system acts as if there is

Abbreviations Used in IEC 61511

These are the abbreviations commonly used in Functional Safety and in IEC 61511 standard. Abbreviation & Full expression λ Failure rate, the

Common Functional Safety Terms

Functional Safety Glossary These are terms being used in Functional Safety and described in IEC 61511 standard. Architecture configuration Specific configuration of hardware and software components in a system. The