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There are many devices (sensors, logic solvers and final elements) used in safety instrumented systems  that are independently certified for use in safety applications to different safety integrity levels (SIL). There is considerable debate however whether fire and gas system hardware should have SIL ratings at all. Vendors are naturally interested in promoting independently certified hardware in order to differentiate their products. Considering the differences between safet

by aeSolutions Technical Team This paper will discuss how quantitative methods can be utilized to select the appropriate Safety Integrity Level associated with Burner Management Systems. Identifying the required amount of risk reduction is extremely important especially when evaluating existing legacy Burner Management Systems. Selection of an overly conservative Safety Integrity Level can have significant cost impacts. These costs will either be associated with increased Sa

This paper will discuss the issues, decisions, and challenges encountered when attempting to initially apply the concepts of the Safety Life

Achieving Safety Integrity Level (SIL) targets can be difficult when proof test intervals approach turnaround intervals of five years or mor

This paper will cover: the development of a SIS front end loading package the project cost savings realized attributed to following the saf

A systematic database approach can be used to design, develop and test a Safety Instrumented System (SIS) using methodologies that are in co

Are random hardware failures the only thing that cause a safety instrumented function (SIF) to fail? What if our assumptions are wrong? What