Definitions of the International vocabulary of metrology (VIM 3) are the foundation of the language spoken by measurement people. The definitions have been carefully elaborated with the involvementof a number of top experts. Nevertheless, if a near-perfect definition is aimed at then it often happens that the definition becomes complex and loses its simplicity. So, some of the definitions need additional explanations to be fully understood, especially by students and people at routine laboratories. One of these is the VIM definition of calibration, especially if it is to be applied to the instrumental chemical analysis.

I tried to make a small contribution towards better general understanding of this definition and now a small video explaining the VIM 3 definition of calibration as applied in chemical analysis using instrumental methods (actually an eleven minute excerpt of a longer lecture) is available at YouTube. Any feedback is welcome!

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