Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Extensive Interlaboratory Study Incorporated into Revision of ASTM Nanotechnology Standard

Abstract:
A revision to an important ASTM nanotechnology standard incorporates a large-scale interlaboratory study that took place in 2008. The revised standard, ASTM E2490, Guide for Measurement of Particle Size Distribution of Nanomaterials in Suspension by Photon Correlation Spectroscopy (PCS), is under the jurisdiction of Subcommittee E56.02 on Characterization: Physical, Chemical and Toxicological Properties, part of ASTM International Committee E56 on Nanotechnology.

Extensive Interlaboratory Study Incorporated into Revision of ASTM Nanotechnology Standard

W. Conshohocken | Posted on July 29th, 2009

According to Alan Rawle, applications manager, Malvern Instruments Inc., and co-chair, E56.02, the interlaboratory study involved 26 laboratories taking a total of 7,700 measurements. Measurements were made using several corroborative techniques including photon correlation spectroscopy, the subject of ASTM E2490. Rawle also gratefully acknowledges that the cooperation and involvement of personnel from the National Institute of Standards and the National Cancer Institute was instrumental in ensuring the success of the interlaboratory study.

PCS is also known as dynamic light scattering or quasi-elastic light scattering. This technique is used to measure the size of very small particles (typically smaller than 100 nm, all the way down to 1 nm or less).

Rawle says that characterization of size distribution was one of three key parameters (the others being composition and morphology) identified by members as being key to the development of nanotechnology. The panel considered the development of standards to be crucial to the growth of nanotechnology.

"Manufacturers already making nanomaterials on a routine basis will need ASTM E2490 to understand the basis of the technique and the constraints, especially from the precision and bias study," says Rawle. "The document can be used for training newcomers to the technique as it is a practice guide rather than a recipe-based standard. For researchers in the field, it is essential that size distribution data is available as this is one of the prime characterization parameters."

Users of ASTM E2490 are found in both industry and research where nanomaterials are synthesized, specified or utilized. The standard is also key to environmental and legislative concerns related to nanomaterials.

Subcommittee E56.02 welcomes input from all who are interested in future revisions to ASTM E2490. "It would be great to see participation by end users in both materials standards and also the associated paper documentation," says Rawle. "E56 welcomes representatives of university research groups and industry."

ASTM International standards are available for purchase from Customer Service (phone: 610-832-9585; ) or at www.astm.org.

For technical information, contact: Alan Rawle, Malvern Instruments Inc., Westborough, Mass. (phone: 508-768-6400 ext. 434; ). ASTM Committee E56 meets Nov. 9-10 during November committee week in Atlanta, Ga.

####

About ASTM
ASTM International welcomes and encourages participation in the development of its standards. ASTM’s open consensus process, using advanced Internet-based standards development tools, ensures worldwide access for all interested individuals. For more information on becoming an ASTM member, please contact Timothy Brooke, ASTM International (phone: 610-832-9729; ).

Established in 1898, 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 around the globe.

For more information, please click here

Contacts:
Barbara Schindler
ASTM International
100 Barr Harbor Drive
W. Conshohocken, PA 19428
610-832-9603

Copyright © ASTM

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Researchers develop artificial building blocks of life March 8th, 2024

How surface roughness influences the adhesion of soft materials: Research team discovers universal mechanism that leads to adhesion hysteresis in soft materials March 8th, 2024

Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting March 8th, 2024

Curcumin nanoemulsion is tested for treatment of intestinal inflammation: A formulation developed by Brazilian researchers proved effective in tests involving mice March 8th, 2024

Announcements

What heat can tell us about battery chemistry: using the Peltier effect to study lithium-ion cells March 8th, 2024

Curcumin nanoemulsion is tested for treatment of intestinal inflammation: A formulation developed by Brazilian researchers proved effective in tests involving mice March 8th, 2024

The Access to Advanced Health Institute receives up to $12.7 million to develop novel nanoalum adjuvant formulation for better protection against tuberculosis and pandemic influenza March 8th, 2024

Nanoscale CL thermometry with lanthanide-doped heavy-metal oxide in TEM March 8th, 2024

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project