exida explains Blog

Entries tagged with: SSI

China Probes Factory as Death Toll Rises

China Probes Factory as Death Toll Rises

Walking into work last week and seeing this article reassured me why I work at exida.  Incidents, like this recent one at a pesticide plant in eastern China, are why we push every day to help educate people about the importance of functional safety.

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Do you know your Site Safety Index?
  • by John Yozallinas, CFSE
  • Thursday, August 02, 2018
  • Certification

Do you know your Site Safety Index?

There’s a lot that exida does behind the scenes to advance the industry and benefit you. We try to make sense of data that we collect and put it to good use. One thing we found is that human activities play a role in functional safety, often causing the intended safety performance…

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Site Safety Index IMPACT on Failure Rates and PFDavg
  • by Ted Stewart, CFSP, exidaCSP
  • Friday, February 19, 2016
  • Certification

Site Safety Index IMPACT on Failure Rates and PFDavg

Performing site audits for numerous customers can be very telling.  All sites have their own unique layout, procedures, documentation, and people.  Did you know that failure rates differ from site to site?  Are you surprised?  According to our recent webinar results, the majority of people aren’t, and in fact…

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Site Safety Index™ (SSI) – A Simple Model for Site Variations in Safety
  • by Dr. William Goble, CFSE
  • Monday, April 11, 2016
  • Certification

Site Safety Index™ (SSI) – A Simple Model for Site Variations in Safety

In several of our technical papers over the years, we have noticed that failure rates for the manufacturer, model number are different at different sites, even when the processes were quite similar.  When I have mentioned this to end users and manufacturers, often the response is “Yes, I have…

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Where Do You Stand with Functional Safety?
  • by Loren Stewart, CFSE
  • Thursday, February 21, 2019

Where Do You Stand with Functional Safety?

This year, make your New Year’s resolution safety! 

Take a moment this year and think about where you currently stand with functional safety. And actually, be honest with yourself. REALLY honest. Do you proof test on time, or does it sometimes get pushed out? Do you pull your devices…

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WHY are Failures Occurring at a Different Rate from Our Other Site?
  • by Ted Stewart, CFSP, exidaCSP
  • Thursday, January 14, 2016
  • Certification

WHY are Failures Occurring at a Different Rate from Our Other Site?

Site audits have shown many differences in how things are done from site to site. This impacts many variables in a safety instrumented system!

A key metric for process industry designs is called average Probability of Failure on Demand (PFDavg).  After several studies of many field failure and proof…

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