Equations for Dangerous Detected Failure PFD – Derived
Equations for Dangerous Detected Failure PFD - Derived Equations are often used to calculate [...]
December 2020
July 2018
Systematic Safety Integrity; what you need to know.
There's a lot of confusion about Systematic Safety Integrity in new IEC61511. We are starting to [...]
January 2018
When all your eggs are in the BPCS and SIS protection layers
During Layer of Protection Analysis (LOPA) of high hazard scenarios, we often rely on a [...]
October 2017
Derivation of PFD Equations for SIL Verification
Have you ever wondered where the equations that are used to calculate probability of failure [...]
July 2017
Reducing Turnaround Time and Cost
In todays oil and chemicals market, time and budgets are strained to remain operational [...]
July 2016
Unavailability Simplified Equation Derivation
The process of safety integrity level (SIL) verification requires calculation of probability of failure on [...]
June 2016
China University of Petroleum Licenses Effigy and Vertigo
The China University of Petroleum and Kenexis has signed licensing agreements that will allow the [...]
April 2016
Effigy & Vertigo in Portuguese & Chinese
We have developed the Effigy (Fire & Gas Detector Mapping) and Vertigo (SIS Lifecycle Management) [...]
April 2015
Documenting Environmental Extremes in Safety Requirements Specifications
The IEC 61511 standard requires that the user specify extremes of environmental conditions as part [...]
Getting Started with Vertigo
This article presents a quick introduction and overview to the Kenexis Vertigo software for SIS [...]