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Metrology infrastructure for high-pressure gas and liquified hydrogen flows

06/2021 - 05/2024


  • European Metrology Programme for Innovation and Research (Opens external link in new windowEMPIR)


The European Green Deal provides a roadmap to boost the efficient use of resources, restore biodiversity and cut pollution. Reaching this target will require certain actions including investments in environmentally friendly technologies, such as hydrogen. This project is the first large scale industry project that will provide the required metrological infrastructure (and traceability) that is needed to tackle the measurement challenges that are currently faced by the hydrogen industry. This will promote growth in several sectors (mobility, fuel cells, liquified hydrogen). The aim of this project is to ensure measurement traceability in the hydrogen distribution chain. Therefore, critical flow Venturi nozzles will be established as standards for use with high pressure gas and a traceability route will be established for liquified hydrogen. Without this, verifiable measurements will not be possible and hydrogen will not be accepted for use as an environmentally friendly fuelothers constant. Thus, the influence of the different parameters can be investigated separately.


For further information: Opens external link in new windowhere


  • 4 European national Metrology Institutes 
  • 3 Universities
  • 11 Industrial partners