Expansion to the SI prefix range
Prof Richard Brown, NPL’s Head of Metrology, led the proposal recommending an expansion of the range of prefixes used within the International System of Units (SI). In November 2022, measurement scientists and government representatives voted at the General Conference on Weights and Measures to adopt:
This was the first expansion to the SI prefix range since 1991 and was driven by the requirements of data science, digital storage and the exponential growth of the global datasphere, which is already using prefixes at the top of the existing scale. The prefixes for very small numbers are useful for quantum science and particle physics.
More about the expansion to the SI prefix range
Chief Scientist elected to CIPM
Chief Scientist, Prof J T Janssen FREng, was elected in a personal capacity to join the International Committee on Weights and Measures (CIPM). This 18-person committee directs and supervises the international organisation responsible for the international system of units and the maintenance of the equivalence of worldwide measurement standards.
Explaining the expansion to the SI Prefix range
When measurements become very big or very small, we still use SI units, but together with SI prefixes, watch our short film to learn more.
First cohort of data scientists complete new standard
Dr Marina Romanchikova, Principal Research Scientist; Dr Paul Duncan, Senior Research Scientist; Dr Reece Saint, Higher Research Engineer and Dr Elizabeth Cooke, Higher Research Scientist, were all in the first cohort of data scientists to complete the new Advanced Data Science Professional Standard from the Alliance for Data Science Professionals.
Read our Alliance for Data Science Professionals story
Using a Kibble balance to perform ultrasonic power measurements with INMETRO
NPL and INMETRO can now perform accurate and repeatable reference-level ultrasonic power measurements, which are currently undertaken using a conventional mass balance. This new technique allows ultrasonic power to be measured in industrial and medical applications without the need for gravitational corrections, simplifies the traceability chain and improves the repeatability and accuracy of calibration.
Read more about the Kibble balance
Metrology Research Roadmaps
NPL’s leading scientists created twelve roadmaps for the highest priority research areas. They show the critical metrology that needs to be in place over the next decade, as well as highlighting the measurement challenges and barriers.
The roadmaps altered how the research and metrology community approached the creation of innovative solutions. They provide a framework from which researchers, funding bodies and businesses can engage with us. They also enable NPL and other research organisations to identify future skills requirements, enhance career pathways and offer fulfilling careers by providing a long-term perspective on research programmes
Download our Metrology Research Roadmaps