Report on uncertainty statements for the nanoparticle concentration determination by SAXS

The main objective of the nPSize project is to improve the capabilities for nanoparticle size measurements via methods such as Microscopy and Small-Angle X-ray Scattering (SAXS), which are traceable to SI units. The principle of metrological nanoparticle size determination has been established in several papers and projects. Work on concentration measurements has also been done. In this report, we determine the uncertainties that occur from the calculation of nanoparticle concentrations by SAXS