This is a copy of the slides presented at the meeting but not formally written up for the volume.

Description: This presentation reviews existing ISO standards relating to the measurement of nanoscale materials and current ISO initiatives concerning best practices for preserving the occupational health and safety of those involved in the manufacture and use of nanotechnologies. The advent of the nanotechnology revolution has raised serious concerns regarding potential health and safety hazards associated with the production and use of engineered nanomaterials. These issues have prompted widespread calls that regulatory agencies evaluate and take appropriate actions to protect human health and safety, preserve the environment and enable international commerce in nanotechnologies. Both national and international regulatory agencies and standards organizations such as EPA, NIOSH, ANSI, BSI, APPIE, DIN, EEC, ISO and others are collaborating to develop a unified approach to standardization. There are a variety of existing international standards that address the measurement of nanoscale materials and the quantification of exposure to some types of airborne nano or ultrafine materials. Relevant national and ISO documents are often difficult to find due to the large number of technical committees, often linked to specific industrial sectors. Recently, a new ISO committee TC229 entitled "Nanotechnologies" was established to address issues specifically associated with engineered nanomaterials. It is the purpose of this committee to assemble international experts to evaluate current standards, compile relevant materials and develop a strategy for developing international standards relating to nanotechnology. Initially, three working groups will develop international standards and best practices in the areas of terminology, metrology, and occupational health and safety.