United States of America

||American Society for Testing and Materials (ASTM)

ASTM E2864 was published in July of 2013 by the Physical and Chemical Characterization E56.02 Subcommittee. It is titled “Test Method for Measurement of Airborne Metal and Metal Oxide Nanoparticle Surface Area Concentration in Inhalation Exposure Chambers Using Krypton Gas Adsorption”. This development is a crucial step in regulating the health safety of a work environment.

||Challenges

Currently, the U.S. Federal regulations are complicated and rapidly evolving but it is also making characterization of engineered nanomaterials difficult. Considerations involve life cycles, exemptions, and thresholds to uncertainty in data with burden in proof. Coherently, in July 2013, the U.S. Government Accountability Office finds investment gaps in nanotech manufacturing that span laboratory production and capabilities to produce prototypes. The result are products that go from proof of concept to privatization with little or no record of testing and development.

The Natural Resources Defense Council (NRDC) and the U.S. Environmental Protection Agency (EPA) are debating the extent to which 1-year-olds and 3-year-olds can chew, salivate, and swallow Ag NP functionalized products (e.g. clothing, blankets, and pillowcases). The original EPA’s risk assessment was based in part on assumptions and did not fully consider the body weight of a 1-year-old, whereby nanosilver concentrations could result in potentially harmful exposures.

||Resources

The ANSI-NSP Nanotechnology Standards Database is aimed to serve as a free resource for standards and other relevant documents related to nano products and processes. The database is under continuous updating to keep up with current technological advancements. Government bodies and standards developing organizations are encouraged to contribute.

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