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ASTM approves airborne nanoparticle measurement standard.

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December 19, 2013 - During manufacture of some products, there is potential for nanomaterials to become airborne, resulting in inhalation exposure to workers and consumers. ASTM E2864, Test Method for Measurement of Airborne Metal and Metal Oxide Nanoparticle Surface Area Concentration in Inhalation Exposure Chambers Using Krypton Gas Adsorption, provides clear steps to collect airborne nanomaterials and analyze them to determine their surface area, promoting safe development and use of nanomaterials.

ASTM International Nanotechnology Committee Approves Airborne Nanoparticle Measurement Standard


ASTM International
100 Barr Harbor Dr., Box C700
West Conshohocken, PA, 19428-2959
USA



Press release date: December 10, 2013

W. CONSHOHOCKEN, Pa., —Nanomaterials are used in the manufacture of a wide range of products, encompassing medicine, textiles, automobile parts, personal care products, food packaging and sporting goods. During the manufacture and use of these products, there is a potential for nanomaterials to become airborne, resulting in inhalation exposure to workers and consumers. A new ASTM International standard provides clear steps to collect airborne nanomaterials and analyze them to determine their surface area.

ASTM E2864, Test Method for Measurement of Airborne Metal and Metal Oxide Nanoparticle Surface Area Concentration in Inhalation Exposure Chambers Using Krypton Gas Adsorption, was developed by Subcommittee E56.02 on Physical and Chemical Characterization, part of ASTM International Committee E56 on Nanotechnology.

"There is a need to accurately characterize the physiochemical properties of nanomaterials to understand any linkage between a specific material property and an observed outcome in toxicology testing," said Aleksandr Stefaniak, research industrial hygienist, National Institute for Occupational Safety and Health, and an E56 member. "Surface area is considered to be an important nanomaterial property, and this test method fills a critical gap in that it provides the first standardized approach to determining the surface areas for airborne nanomaterials in the form that they are delivered to a test subject."

Stefaniak notes that the most important application of ASTM E2864 will be for inhalation toxicology testing being performed for research and regulatory purposes.

"ASTM E2864 will help scientists to better understand the properties of the nanomaterials they use in their experiments and promote the safe development and use of nanomaterials," says Stefaniak.

All interested parties are invited to join in the standards developing activities of E56.02. The subcommittee is seeking laboratories to participate in interlaboratory studies on ASTM E2864 who have the capability to measure low surface area values using krypton gas as the adsorbate.

To purchase ASTM standards, visit www.astm.org and search by the standard designation, or contact ASTM Customer Relations (phone: 877-909-ASTM; sales@astm.org). ASTM International welcomes participation in the development of its standards. For more information on becoming an ASTM member, visit www.astm.org/JOIN.

ASTM International is one of the largest international standards development and delivery systems in the world. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions.

For more news in this sector, visit www.astm.org/sn-quality or follow us on Twitter @ASTMQuality.
ASTM Committee E56 Next Meeting: May 5-6, 2014, May Committee Week, Toronto, Ontario, Canada
Technical Contact: Aleksandr Stefaniak, National Institute for Occupational Safety and Health, Sabraton, W. Va., Phone: 304-285-6302; boq9@cdc.gov
ASTM Staff Contact: Kathleen McClung, Phone: 610-832-9717; kmcclung@astm.org
ASTM PR Contact: Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org
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