July 2021

April 2021

March 2021

January 2021

December 2020

Equations for Dangerous Detected Failure PFD – Derived

By |2021-10-04T10:19:54-04:00December 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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October 2020

August 2020

June 2020

April 2020

October 2019

June 2019

April 2019

March 2019

The Case for Scenario Coverage for Gas Detector Placement

By |2020-06-23T14:05:27-04:00March 12th, 2019|Edward M. Marszal, Effigy, Fire and Gas Systems|

The Case for Scenario Coverage for Gas Detector Placement In the beginning, gas detector placement [...]

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January 2019

Security PHA Review Example – Video from Kaspersky Industrial Cybersecurity 2018

By |2019-07-24T16:23:36-04:00January 18th, 2019|Edward M. Marszal, ICS Cybersecurity, OpenPHA|

Kaspersky has just published the videos from the Kaspersky Industrial CyberSecurity 2018 conference.  This video [...]

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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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April 2018

Setting up Security PHA Review (SPR) in Open PHA

By |2019-07-24T16:23:41-04:00April 27th, 2018|Edward M. Marszal, ICS Cybersecurity, OpenPHA, Process Hazards Analysis|

Kenexis Open PHA integrated software for performing process hazards analysis (PHA) such as HAZOP and [...]

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February 2018

January 2018

December 2017