JRC Technical Report Interlaboratory comparison on the determination of the Volume Specific Surface Area (VSSA) of Manufactured Nanomaterials, which is part of the work within the project 1.3 of the Test Guidelines Programme (New TG on Determination of the (Volume) Specific Surface Area of Manufactured Nanomaterials). https://publications.jrc.ec.europa.eu/repository/handle/JRC124644