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Description of ASTM-F1471 2009ASTM F1471-09Withdrawn Standard: Standard Test Method for Air Cleaning Performance of a High-Efficiency Particulate Air- Filter System (Withdrawn 2018)ASTM F1471Scope 1.1 This test method covers the procedure and equipment for measuring the penetration of test particles through high-efficiency particulate air (HEPA) filter systems using a laser aerosol spectrometer (LAS). This test method provides the capability of evaluating the overall effectiveness of HEPA filter systems consisting of one or two filter stages. 1.2 The aerosols used for testing have a heterodisperse size distribution in the submicrometer diameter range from 0.1 to 1.0 μm. 1.3 The purpose for conducting in-place filter testing by this test method is in the ability to determine penetration of multi-stage installations, without individual stage tests. Particle penetration as low as 10−8 can be measured by this test method. Also, the LAS provides a measure of penetration for discrete particle sizes. 1.4 Maximum penetration for an installed HEPA filter system is 5 × 10−4 for one filter stage, and 2.5 × 10−7 for two stages in series is recommended. Note 1—Acceptance penetration criteria must be specified in the program, or owners specifications. The penetration criteria suggested in this test method is referenced in Ref (1). 1.5 The values stated in SI units are to be regarded as the standard.
1.6 This standard does not purport to address all of the safety problems, 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. Specific precautionary statements are given in
9.6. Keywords aerosol dilution; aerosol generator; average penetration; background particles; challenge aerosols; coincidence; compressed-air nebulizer; dilution ratio; fractional penetration; HEPA; laser aerosol spectrometer; test aerosols; Aerosol dilution; Aerosol generator; Airflow performance; Average penetration; Background particles; Calibration--spectrochemical analysis instrumentation; Challenge aerosols; Coincidence counting; Compressed air; Diluter calibration; Dilution ratio/value; DOP (di(2-ethylhexyl phthalate)); DOS (di(2-ethylhexyl sebacate)); Fractional penetration; HEPA filters; Laser aerosol spectrometer (LAS); Performance--air analysis instrumentation; Spectrometry ICS Code ICS Number Code 13.040.40 (Stationary source emissions) DOI: 10.1520/F1471-09 The following editions for this book are also available...This 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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