Dr. Thomas Bacquart is a principle research scientist in gas metrology at the National Physical Laboratory (Teddington, UK), which is the national metrology institute of the United Kingdom. He obtained a PhD in analytical chemistry (2007) from the University of Bordeaux (France). His current research focuses on the measurement challenges for hydrogen gas quality, especially for fuel cell application. He leads the hydrogen quality laboratory at NPL and has performed over 50 samplings of hydrogen fuel in Europe and over 100 hydrogen fuel analyses applying novel analytical methodologies to hydrogen challenges. He was a work package leader in multiple European projects on gas analysis (EMPIR Hydrogen, MetroHyVe, FCH-JU Hydraite), coordinated the European project MetroHyVe 2, and led standardisation activities (co-convenor of ISO TC197 WG33).