Professor Richard J. C. Brown
Professor Richard J. C. Brown is an NPL Senior Fellow and NPL’s Head of Metrology with responsibility for overseeing the accuracy of the UK’s national standards of measurement, ensuring their comparability internationally, and enabling their dissemination through the UK’s measurement quality infrastructure. He joined NPL in 2000 following the award of his BSc and PhD degrees from Imperial College, London. Richard has made numerous contributions to the International System of Units (SI) over many years. This has culminated most recently in his work on the revision of the SI in 2019, his international leadership in the areas of dimensionless quantities and the unit one, his seminal work to integrate chemical physics and the unit mole into the SI, his thought leadership concerning the value of metrology during the COVID-19 pandemic and most recently his proposal to expand the range of SI prefixes, which was approved by the 27th General Conference on Weights and Measures in November 2022 who adopted ronna (R) for 1027, quetta (Q) for 1030, ronto (r) for 10−27, quecto (q) for 10−30.
