Workshop: SI-traceable calibration methods for mercury gas generators

For decades gaseous mercury concentration measurements have been calibrated based on mercury vapour pressure equations (e.g., the Dumarey or the Huber equation). Currently these equations differ from each other by more than 7 % at 20 °C and this discrepancy is of great concern as it hampers comparable and reliable measurement results for mercury concentrations in the atmosphere and emissions sources.

What does digital transformation mean for metrology?

Digital transformation is everywhere in society. Metrology is also affected by the digital transformation in many ways. In his paper ‘The digital transformation and novel calibration approaches’ Gertjan Kok, Data Science & Modeling Scientist at VSL Dutch Metrology Institute, discusses how new digital technologies affect the work and the role of National Metrology Institutes such as VSL.