Archive - April 2016

Failure Rate Data – Don’t fake it!

Performing a Random Hardware Failures Assessment on a Safety Instrumented Function (SIF) is a key requirement specified in IEC 61508 and IEC 61511 as part of SIL Verification. This requirement ensures that that the SIF meets the required target failure measure in terms of Probability of Failure on Demand (PFD) or Probability of Failure per hour (PFH) as identified in … More

SIL certificate: Does your product really need one?

Paulo OliveiraRead my biographyOur Product Certification services IEC 61508 certification (including product certification) is not listed as a specific requirement for compliance with the standard, so why do it? The process for equipment or system certification under IEC 61508 is an evidence-based, structured and methodical approach to evaluate how product (or system)… More