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Description of ASTM-E2088 2011ASTM E2088 - 06(2011)Standard Practice for Selecting, Preparing, Exposing, and Analyzing Witness Surfaces for Measuring Particle Deposition in Cleanrooms and Associated Controlled EnvironmentsActive Standard ASTM E2088 | Developed by Subcommittee: E21.05 Book of Standards Volume: 15.03 ASTM E2088Significance and Use This practice provides a standard approach to measuring particle deposition, or fallout, in cleanrooms and other controlled environments. It is based on the use of a witness surface to collect particles that deposit from the surrounding environment and subsequently sizing and counting the particles by conventional methods. Several options are introduced, with limitations and guidelines for selecting the best choice for the intended application. This practice is applicable across numerous industries including aerospace, microelectronics, and pharmaceuticals. 1. Scope 1.1 This practice is intended to assist in the selection, preparation, exposure, and analysis of witness surfaces for the purpose of characterizing particle deposition rates in cleanrooms and associated controlled environments, particularly for aerospace applications. 1.2 Requirements may be defined in terms of particle size distribution and count, percent area coverage, or product performance criteria such as optical transmission or scatter. Several choices for witness surfaces are provided. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards E1216 Practice for Sampling for Particulate Contamination by Tape Lift F24 Test Method for Measuring and Counting Particulate Contamination on Surfaces F312 Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters Government Standards IEST-STD-CC1246 Product Cleanliness Levels and Contamination Control Program Available from Institute of Environmental Sciences and Technology (IEST), Arlington Place One, 2340 South Arlington Heights Road, Suite 100, Arlington Heights, IL 60005-4516, http://www.iest.org.ISO Standard ISO14644-1 Cleanrooms and Associated Controlled Environments--Part 1: Classification of Air Cleanliness Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.Keywords cleanroom; contamination control; controlled environment; Analyzing witness surfaces; Cleanrooms (materials/applications); Environmental control/fate; Particulate contamination (aerospace environments); Preparing witness surfaces; Selection guides--test procedures; Witness surfaces; Analyzing witness surfaces; Cleanrooms (materials/applications); Environmental control/fate; Particulate contamination (aerospace environments); Preparing witness surfaces; Selection guides--test procedures; Witness surfaces ICS Code ICS Number Code 13.040.35 (Cleanrooms and associated controlled environments) DOI: 10.1520/E2088-06R11 ASTM International is a member of CrossRef. ASTM E2088This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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