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In this lecture the VSSA concept is explained, and VSSA as measured by BET. Results of the NanoDefine evaluation based on selected examples on real-world materials are presented. Recommendations for consideration of the VSSA concept for the implementation of the EC definition of nanomaterial for powder materials are given.
Volume specific surface area (VSSA) by BET: concept and demonstration on industrial materials
(2017)
Volume specific surface area (VSSA) as measured by BET constituites a simple and reliable solution to (most) powders. Porous, coated, polydisperse/multimodal materials are to be treated with care, i.e. doubled by analysis with electron microscopy or more advanced BET analysis (e.g. t-plot)for each material in part.