Project Partners VSL is the Dutch National Metrology Institute and is an internationally authoritative knowledge institute in the field of metrology internationally. As well as the management and development of the national primary measurement standards VSL Institute of Metrology of Bosnia and Herzegovina (IMBIH) represents the national measurement institute in BiH that is directly responsible to the Council of Ministers of Bosnia and Herzegovina. The National Physical Laboratory (NPL) is the UK’s National Measurement Institute, and is a world-leading centre of excellence in developing and applying the most accurate measurement standards, science and technology available PTB is the National Metrology Institute of Germany with scientific and technical service tasks. PTB measures with the highest accuracy and reliability – metrology as the core competence. PTB stands for progress and reliability in metrology for the benefit of society, trade and industry, and science. The RISE institutes Innventia, SP, and Swedish ICT have merged in order to become a stronger research and innovation partner. Through our international collaboration programmes with academia, industry, and the public sector, we ensure the competitiveness of the Swedish business community on an international level and contribute to a sustainable society. VTT Technical Research Centre of Finland Ltd is one of the leading research and technology organisations in Europe. Our research and innovation services give our partners, both private and public, all over the world a competitive edge. We pave the way for the future by developing new smart technologies, profitable solutions and innovation services. A new kind of energy. Welcome to a fairer, smarter, greener way to get the energy – and the savings – you need for your home. Established by the French Government in 1990 as the National competence centre for Industrial Safety and Environmental Protection, INERIS has developed expertise in the areas of chronic and hazardous risks. NEN is the Royal Dutch Standardization Institute, legally set up as a non-profit foundation. NEN is the Dutch knowledge-centre for standards. NEN supports over 1400 standardization committees with 7000 members. An important role of NEN is giving advice to the Dutch government regarding reference to standards, the application of standards in the formation of statutory regulations and about the government policy on standardization. The University of Groningen is a public research university in the city of Groningen in the Netherlands. The university was founded in 1614 and is one of the oldest universities in the Netherlands as well as one of its largest. With RICE (Research and Innovation Center for Energy), GRTgaz positions itself on the cutting-edge of R&D and Innovation to benefit security, operational excellence of gas infrastructure and the energy transition.