ABSTRACT
This chapter shows the examples of physicochemical parameter lists for nanomaterials from various sources and provides descriptions of what is meant by the most common parameters. The scientific community responded to the demand by developing characterization guidance and lists of important physicochemical properties for toxicological and risk assessment studies of nanomaterials. International Organization for Standardization TC 229 has produced a draft roadmap that includes these broad properties as part of an advanced character set for most nanomaterial classes. These properties are occasionally found in lists of important physicochemical properties, such as the optical properties listed in the European Commission guidance on nanomaterials in cosmetics. International efforts on defining nanomaterial physicochemical characterization requirements and properties of importance have largely occurred through work by the Organisation for Economic Co-operation and Development (OECD), the ISO/International Electrotechnical Commission, and ASTM International. Australia employs a regulatory approach consistent with OECD recommendations.
