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 [...]
July 2018
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 [...]
August 2017
How do I decide on the need for toxic gas detection?
We were recently asked about placing Hydrogen Sulfide (H2S) gas detectors in an area of [...]
July 2017
Do you really know the worst case for atmospheric dispersion of a gas release?
Dispersion of an elevated release Often atmospheric dispersion models are needed to determine [...]
January 2016
Brittle Fracture Hazards in Carbon Steel AMSE-Rated Equipment
Whenever a PHA or LOPA considers a low temperature hazard for carbon steel equipment, the [...]
November 2015
Fire & Gas Mapping: Actual Engineering or Fancy Computer Aided Graphics ?
With the relatively new and growing interest in design of Fire & Gas systems using [...]
September 2015
5 things you should know about OSHA’s latest PSM interpretation
On June 8, 2015, OSHA issued a formal Letter of Interpretation regarding the application of [...]
August 2015
Advances in Design of Gas Detection Systems
Designers of fire and gas systems have long struggled with the question of how many [...]
July 2015
PHA/LOPA Study Findings for Separation of Basic Process Control and Safety Instrumented Systems
Recently I had a customer request Kenexis conduct SIL verification analysis on several safety functions [...]
May 2015
ISO 9000 Quality Management; Operations Manager Perspective
Quality has long been a priority for Kenexis. The recent implementation and accreditation of our [...]
February 2015
Inspection of SIS Equipment During Function Testing
Recently, I was reminded by a customer of the importance of “Inspection” as part of [...]
November 2014
Acceptable Sharing of BPCS and SIS Field Measurements
Many users of safety automation equipment employ a practice of using redundant field devices on [...]
SIS Function Testing
I recently assisted a customer in testing a newly installed Safety Instrumented System (SIS) at [...]
September 2014
Process Safety Milestones
I recently assisted a customer in conducting risk analysis to develop a Safety Instrumented System [...]
August 2014
Bypass of Safety Instrumented Functions
Kenexis is commonly asked to assist in specifying requirements for bypassing functions the Safety Instrumented [...]
SIL 3 Requirements from LOPA, Should be Challenged Before Implementing Costly Systems
Recently Kenexis was asked to develop an SIS design for an NGL processing facility. The [...]