Understanding the threshold for nanoparticles
In the EU, a nanomaterial is defined by the proportion of solid particles in a material, where 50% or more of these particles fall within the size range of 1 to 100 nanometres. However, this single criterion does not sufficiently define a nanomaterial, and many other scientific criteria should therefore be included.
This infographic provides insights on the threshold for nanoparticles and on labelling of engineered nanomaterials.