A career in metrology

As the inaugural head of metrology at the UK’s National Physical Laboratory (NPL), Richard Brown relishes a detailed scientific debate. Recent topics include helping to revise the international system of units (SI) and running projects ensuring the accuracy of air quality measurements. His role was set up ‘to make sure we are focused on the metrology we do, not only internally at NPL – assuring the quality and reproducibility of our science – but also in terms of how we interact with the outside world,’ he says.

Around half of NPL’s work is based on fundamental measurement science (metrology), the rest split between forward-looking research and helping to address national challenges. This includes providing standards for a large number of measurements made in society, from breath alcohol standards for police forces to gas standards for engineers assessing boiler safety. But NPL also advances measurement science and plays a vital role in international debates over units.