Bringing the results of the Scientific Committees closer to the public - Summary of the scientific opinion on the definition of nanomaterials
http://ec.europa.eu/health/scientific_committees/opinions_layman/nanomaterials2012/en/index.htm
ナノ材料の定義について。主な判断材料は大きさ（概ね上限100nm）と体積比表面積（60 m2/cm3以上）など
