SIS ENGINEERINGKey Considerations Establishing Site or Corporate SIS GuidelinesKey considerations to developing SIS guidelines, with the SIS lifecycle generalized into three main sections: Concept Through Startup, Opera
PROCESS SAFETYThe Purpose of Performing a PHA - 2 Minute TopicThe ISA/IEC 61511 Safety Life Cycle starts with a Process Hazard Analysis (PHA) and a Risk Assessment. What is a PHA? Why do we do it?...
PROCESS SAFETYChallenging Safety Metrics in Process Industries: A Bayesian Perspective on Layer of Protection Analysis (LOPA)The process industry uses Layer Of Protection Analysis (LOPA) to document extremely small probabilities for catastrophic events....
WHITEPAPERSThe use of Bayesian Networks in Functional Safety - WhitepaperFunctional safety engineers follow the ISA/IEC 61511 standard and perform calculations based on random hardware failures. These result in...
WHITEPAPERSCan we achieve Safety Integrity Level 3 (SIL 3) without analyzing Human Factors?Incorporate quantitative Human Factors into a SIL analysis. Representative operating units at various stages of maturity in human factors an
WHITEPAPERSWhat is Truth? Do SIL Calculations Reflect Reality?Are random hardware failures the only thing that cause a safety instrumented function (SIF) to fail? What if our assumptions are wrong? What
SIS ENGINEERINGFunctional Safety Specialists May be Stuck in the Past – Do our SIL calculations Reflect Reality?Functional safety specialists may be stuck in the past and doing industry a disservice. The current industry trend is to only consider rando
PROCESS SAFETYThe use of Bayesian Networks in Functional SafetyFunctional safety engineers follow the ISA/IEC 61511 standard & perform calculations based on random hardware failures. These result in...
PROCESS SAFETYWhat can go wrong with a functional safety assessment, and how to ensure one goes smoothly?What might go wrong with an FSA, and what might you do to ensure that an FSA runs smoothly?
PROCESS SAFETYHow About a Stage Zero Functional Safety Assessment (FSA)?Inspired by “Conducting an Effective Functional Safety Assessment” presented at 2019 ISA PIC 2019—Process Industry Conference. by Greg...