Voices: Feedback

Reader Feedback: The SIS Focus Should Be on Verification

The what-if analysis (fault tree analysis) is the key, and SIS standards committee are a long way from understanding that.

By Paul Gruhn, P.E., ISA Fellow
Jan 2, 2015

I am writing in response to Béla Lipták's article "SIS: Standards by Committee/articles/2014/sis-standards-by-committee/" in the November issue of Control. I suggest Control print a retraction of his article. I am not the only long standing ISA 84 committee member that will state what he has written is incorrect and a gross disservice to the industry.

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