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- Particle sizing techniques (3) (entfernen)
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At the Final Outreach Event of the European FP7 NanoDefine project the results achieved during 4 years of intensive research and development work (2013-2017) with relevant stakeholders and wider community, and their practical implications and impact are presented and discussed. The newly developed particle-size related measurement tools and their practical suitability and applicability to classify materials, formulations and products according to the EC recommendation on the definition of a nanomaterial (2011/696/EU) are demonstrated.
The large European nanometrology Project NanoDefine is presented briefly with respect to the challenges of measurement of particle size distribution for complex nanoparticulate materials.
The methods chosen for a tiered approach for the classification of a nanomaterial are discussed with regard to their peformance. Representative resuls on real life, complex shaped nanoparticulate materials are shown.
The recently initiated VAMAS inter-laboratory comparisons to determine the reproducibility necessary for international standardisation have been also presented.
Evaluation of particle sizing techniques for implementation of the EC Definition of a nanomaterial
(2017)
Many techniques are available for measuring particle size distribution. For ideal materials (spherical particles, well dispersed) it is possible to evaluate the Performance of these methods. The performance of the analytical instrumentation for the purpose of classifying materials according to EC Definition is unknown. In this work the performance of commercially available particle sizing techniques on representative NanoDefine set of real-world testing materials (RTM) and quality control materials (QCM) for the implementation of the Definition is evaluated.