This standard specifies the guidance for the characterization of physical and chemical properties of man-made nano-objects and aggregates and aggregates (NOAA) larger than 100 nm. The purpose is to provide assistance in evaluating and clarifying the impact of physical and chemical properties on toxicological effects, and can also be used to distinguish between test items The material is similar to it. This standard specifies description, explanation, correlation, to-be-measured and test method examples for each physical and chemical property. This standard has reference value for researchers who are committed to studying the potential toxicological effects of NOAA (such as toxicologists, ecotoxicologists, managers, health and safety experts).
