T05: Test Uncertainty – The Revolution in Evaluating Measurement Uncertainty – 1/2 Day

Abstract

Borne out of international standards in dimensional metrology, a revolution in measurement uncertainty is here. When it comes to conformity assessment of measuring instruments, most calibration laboratories continue to evaluate measurement uncertainty incorrectly. The result is overinflated uncertainties and questionable decision rule practices. In this lively and experiential learning experience, we will shatter some of the uncertainty myths that are holding back the metrology field. We will openly debate the concept of test value uncertainty – the term introduced in international standards for the evaluation of measurement uncertainty in the conformity assessment of measuring instruments. Test uncertainty is sweeping across dimensional metrology practice, and you should be embracing these powerful concepts too. And we will face the hard facts about words tossed around a little too lightly – resolution, repeatability, and reproducibility – three concepts that infiltrate measurement uncertainty with all too often devastating, yet avoidable, consequences. This learning experience will focus on concepts in measurement uncertainty available in recent ISO and ANSI/ASME standards and does not involve any complicated math. To get the most out of the class, attendees should have at least a basic understanding of measurement uncertainty. Bring your tough questions, be ready to debate, and don’t be surprised if you leave this session with some incredibly powerful tools that will change your measurement uncertainty and decision rule future.