ThomasNet News Logo
Sign Up | Log In | ThomasNet Home | Promote Your Business

ASTM Standard is revised based on interlaboratory study.

Print | 
Email |  Comment   Share  
July 31, 2009 - ASTM E2490, Guide for Measurement of Particle Size Distribution of Nanomaterials in Suspension by Photon Correlation Spectroscopy, was revised based on study involving 26 laboratories taking 7,700 measurements. According to Alan Rawle, characterization of size distribution, along with composition and morphology, were key parameters identified as being key to development of nanotechnology. Subcommittee E56.02 welcomes input from those interested in future revisions to ASTM E2490.

Extensive Interlaboratory Study Incorporated into Revision of ASTM Nanotechnology Standard


(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

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



Press release date: July 29, 2009

W. CONSHOHOCKEN, Pa., July 29, 2009 - 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.

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; service@astm.org) or at www.astm.org.

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

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; tbrooke@astm.org).

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.

Print | 
Email |  Comment   Share  
Contacts: View detailed contact information.


 

Post a comment about this story

Name:
E-mail:
(your e-mail address will not be posted)
Comment title:
Comment:
To submit comment, enter the security code shown below and press 'Post Comment'.
 



 See related product stories
More .....
 See more product news in:
Services
 More New Product News from this company:
ASTM Workshop to address additives in biomedical polymers.
Oil Training Course examines sampling, testing, evaluation.
Radiant Barrier Systems Standards approved by ASTM committee.
Training Course addresses hazards in oxygen systems.
More ....
| Featured Manufacturing Jobs
 Other News from this company:
ASTM/NIBS Workshop on Building Science Education in North America
Fatigue and Fracture of Metallic Medical Materials and Devices
ASTM International Compilation on Silica and Associated Respirable Mineral Particles
Guidance for Potential Solar Photovoltaic Investors to Be Provided in Proposed ASTM Standard
Test for Sustained Air Performance of Central Vacuum Cleaning Units Approved as ASTM Standard
More ....
 Tools for you
Watch Company 
View Company Profile
Company web site
More news from this company
E-mail this story to a friend
Save Story
Search for suppliers of
Trade Associations


Home  |  My ThomasNet News®  |  Industry Market Trends®  |  Submit Release  |  Advertise  |  Contact News  |  About Us
Brought to you by Thomasnet.com        Browse ThomasNet Directory

Copyright © 2014 Thomas Publishing Company. All Rights Reserved.
Terms of Use - Privacy Policy



Error close

Please enter a valid email address