Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > New Sampling and Classification Methods Set in Revised ISO Cleanroom Standards

Abstract:
A new principle for selection of cleanroom sample locations is one of the major changes in the newly revised ISO 14644 standards now available from the Institute of Environmental Sciences and Technology (IEST), the Secretariat for ISO Technical Committee 209 (ISO/TC 209): Cleanrooms and associated controlled environments. Users of the current ISO 14644 standards are urged to review the new sampling plan in ISO/DIS 14644-1—Part 1: Classification of air cleanliness by particle concentration and ISO/DIS 14644-2—Part 2: Specifications for monitoring and periodic testing to prove continued compliance with ISO 14644-1 in comparison to the previous approach.

New Sampling and Classification Methods Set in Revised ISO Cleanroom Standards

Arlington Heights, IL | Posted on December 10th, 2010

These documents, together considered the cornerstone of the ISO 14644 Cleanroom Standards Series, are available from IEST as Draft International Standards (DIS). Importantly, ISO/DIS 14644-1 and 14644-2 may be used as trade reference per agreement between customers and suppliers, necessitating an urgent need for an understanding of the revised provisions by those involved in contamination control. The DIS documents are under review by ISO member bodies for voting and comment by May 2, 2011, for approval for submission as Final Draft International Standards (FDIS). In the United States, public comments may be submitted to IEST through a form available on the IEST website at www.iest.org.

According to the ISO/TC 209 Working Group experts who developed the revisions, new provisions include a simplified classification process based on a more accurate scientific sampling method. The new statistically based plan for selecting sample locations calls for a greater number of locations, but in turn eliminates the need to apply a statistical test to the data. This approach reportedly allows for different concentration levels in different parts of the cleanroom and is designed to ensure with a given statistical confidence that at least 90% of the cleanroom area complies with the maximum particle concentration. An article detailing the statistics behind the revisions is scheduled for an upcoming special edition of the Journal of the IEST.

Educational courses to inform the controlled environments community about the revisions are planned by IEST this winter in California and on the east coast, and in Chicago during ESTECH, the IEST annual technical meeting, in May 2011. For further details or to order the documents, visit the IEST website at www.iest.org or call IEST at (847) 981-0100.

####

About IEST
Founded in 1953, IEST is an international technical society of engineers, scientists, and educators that serves its members and the industries they represent (simulating, testing, controlling, and teaching the environments of earth and space) through education and the development of recommended practices and standards.

IEST is an ANSI-accredited standards-developing organization; Secretariat of ISO/TC 209 Cleanrooms and associated controlled environments; Administrator of the ANSI-accredited US TAG to ISO/TC 209; and a founding member of the ANSI-accredited US TAG to ISO/TC 229 Nanotechnologies.

For more information, please click here

Contacts:
Heather Wooden
IEST Marketing and Meeting Coordinator
Arlington Place One
2340 S. Arlington Heights Road
Suite 100
Arlington Heights, IL 60005
Phone: (847) 981-0100 ext. 20

Copyright © IEST

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

Laboratories

Nanoscale Mirrored Cavities Amplify, Connect Quantum Memories: Advance could lead to quantum computing and the secure transfer of information over long-distance fiber optic networks January 28th, 2015

New pathway to valleytronics January 27th, 2015

Nanoshuttle wear and tear: It's the mileage, not the age January 26th, 2015

Self-assembled nanotextures create antireflective surface on silicon solar cells: Nanostructured surface textures-with shapes inspired by the structure of moths' eyes-prevent the reflection of light off silicon, improving conversion of sunlight to electricity January 21st, 2015

Govt.-Legislation/Regulation/Funding/Policy

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Nanoscale Mirrored Cavities Amplify, Connect Quantum Memories: Advance could lead to quantum computing and the secure transfer of information over long-distance fiber optic networks January 28th, 2015

Detecting chemical weapons with a color-changing film January 28th, 2015

'Bulletproof' battery: Kevlar membrane for safer, thinner lithium rechargeables January 28th, 2015

Announcements

New method allows for greater variation in band gap tunability: The method can change a material's electronic band gap by up to 200 percent January 31st, 2015

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE