In attending last week’s 63rd Annual Texas A&M Instrumentation symposium, I was shocked to hear from a well respected safety expert that SFF (Safe failure fraction) was a failed metric.  No explanation, just that SFF was pretty much useless, followed by a cackle.  I really hate when people make profound statements like this, ...

I received an e-mail inquiring about a product being “listed” or not, which made me stop and think about how far we have come in the past 10 years regarding safety systems and their “type” of certification.  The term “listed” means equipment or materials included in a list published by an organization ...