December 2020

Equations for Dangerous Detected Failure PFD – Derived

By |2020-12-08T16:47:21-05:00December 8th, 2020|Edward M. Marszal, Safety Instrumented System, Vertigo|

Equations for Dangerous Detected Failure PFD - Derived Equations are often used to calculate [...]

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November 2020

Fired Heater High CO/Combustibles Shutdown – Benchmarking Study

By |2020-11-17T18:33:45-05:00November 17th, 2020|Edward M. Marszal, News, Safety Instrumented System|

Fired Heater High CO/Combustibles Shutdown - Benchmarking Study As part of our extensive consulting work [...]

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April 2020

Risk Reduction Factor is not the Inverse of Probability of Failure on Demand

By |2020-04-29T12:37:12-04:00April 29th, 2020|Author, Edward M. Marszal, Safety Instrumented System, Services|

General Definition of Risk Reduction Factor The term Risk Reduction Factor (RRF) is very commonly [...]

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December 2019

June 2019

December 2018

November 2018

July 2018

Systematic Safety Integrity; what you need to know.

By |2019-07-24T16:23:40-04:00July 6th, 2018|Kevin Mitchell, News, Safety Instrumented System, Services, Vertigo|

There's a lot of confusion about Systematic Safety Integrity in new IEC61511.  We are starting to [...]

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January 2018

October 2017

Derivation of PFD Equations for SIL Verification

By |2019-07-24T16:23:43-04:00October 12th, 2017|Arbor, Author, Edward M. Marszal, News, Products, Safety Instrumented System, Services, Vertigo|

Have you ever wondered where the equations that are used to calculate probability of failure [...]

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August 2017

July 2017

May 2017

April 2017

December 2016