Concluding remarks

In this concluding chapter we firstly discuss interlaboratory studies, which can be used to demonstrate the reproducibility of a measurement technique, or to compare the results of different techniques, and hence to assess the accuracy of the characterisation process. In particular, we discuss the results of a recent relevant interlaboratory study on hydrogen adsorption. We then discuss reference materials, which can be used to characterise and corroborate both sorption instrument performance and experimental methodology, before describing some provisional measurement guidelines, which provide both a guide to best practice in hydrogen sorption measurement and serve as a useful practical summary of the discussion of the experimental considerations in Chap. 6 10.1007/978-0-85729-221-6_6. We conclude by emphasising the importance of future research into hydrogen sorption measurement accuracy, in order to aid our understanding of the interaction of hydrogen with matter and to help reduce the variation in the reported hydrogen sorption properties of new materials, as the search for a solution to the hydrogen storage problem continues. © Springer-Verlag London Limited 2011.