A detailed research plan for Tasks 2.3 and 2.4

Summary
More detailed plans for the study of new impurities originating HRS and H2 supply chain (Task 2.3) and for the study of contaminant mixtures, including new impurities originating from HRS and supply chain. These plans will exploit the information gained from the Task 5.1, where information will be gathered regarding the critical components and maintenance practices in HRS, as well as the information exchange with OEM AB regarding the H2 supply chain contaminants.