D3 -- Report on the development of four reference methods/systems including implementation of sampling systems for hydrogen quality assessment

The deliverable describes summarily the hydrogen sampling strategies which have been developed in the tasks 2.1 (gaseous species) and 2.2 (particulates) of the project MetHyTrucks and the steps needed to implement these devices onsite (task 2.3). The report also shows the successful implementation of these devices at two different stations: at the ZBT station in Duisburg, Germany, October 2024 and at the Tyseley Refuelling Hub, UK in September 2025.In this report, we consider only the implementation i.e. assessing the functionality of the sampling systems at a HD-HRS and compliance with the refuelling protocols and other HRS parameters.