|Selected Document Category:
|International Organization for Standardization
|Anticipated Publication Year:
|Nanotechnologies – Evaluation of the mean size of nano-objects in liquid dispersions by static multiple light scattering (SMLS)
|This Technical Specification provides guidance for the determination of the mean size of nano-objects in liquid-based dispersions using the static multiple light scattering technique. The technique is applicable to a wide range of materials and does not require dilution of concentrated samples
|nano-objects, light scattering, dispersions
|Type of Document:
|Goal or Need:
Nanoparticles dispersed in liquids interact due to a variety of weak and strong forces, which can lead to aggregation or agglomeration of primary particles. The dispersion state of the suspension strongly depends on a range of parameters. As a result, the dispersion state and the apparent mean particle size and size distribution can differ from those determined during product manufacturing, storage, and processing, particularly when using measurements requiring sample dilution or extensive preparation...
Static multiple light scattering (SMLS) based methods, in contrast to other techniques, do not require sample preparation allowing, within limitations outlined in this document, direct measurement of the mean particle size in the native (as-received) state of dispersion.
|Is it Being Implemented:
|American National Standards Institute
|Contact for Additional Info:
|Toshi Fujimoto, t.fujimoto at aist.go.jp