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Description of ASTM-F7 2011ASTM F7 - 95(2011)Standard Specification for Aluminum Oxide PowderActive Standard ASTM F7 | Developed by Subcommittee: F01.03 Book of Standards Volume: 10.04 ASTM F7Abstract This specification covers aluminum oxide (alumina) powder in two classes of particle size, two chemical grades, and two levels of acidity. Aluminum oxide powder shall conform to the chemical composition requirements indicated in this specification. The alumina powder shall be tested for water-soluble content, particle size, and hydrogen-ion concentration according to the procedures in this specification. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. 1. Scope 1.1 This specification covers aluminum oxide (alumina) powder in two classes of particle size, two chemical grades, and two levels of acidity, for use as an insulating coating or as an ingredient of ceramic mixtures for components of electronic devices as follows: 1.1.1 Particle Sizes: 1.1.1.1 Class A Particle size No. 500 nominal mesh (nominal average particle size = 24.3 ? m). 1.1.1.2 Class B Particle size No. 900 nominal mesh (nominal average particle size = 1.7 ? m). 1.1.2 Chemical Grades Grades 1 and 2 as specified under chemical requirements in Section 3. 1.1.3 Acidity Levels : pH (acid) 4.5 to 6.5 and pH (neutral) 6.5 to 7.5. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 The following safety hazards caveat pertains only to the test methods in this specification. 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 C183 Practice for Sampling and the Amount of Testing of Hydraulic Cement E70 Test Method for pH of Aqueous Solutions With the Glass Electrode Keywords alumina; particle sizing methods; powder; Alumina; Aluminum oxide (alumina) powder; Electronic materials/applications--specifications; Metal electronic components/devices--specifications; Water-soluble-matter content; ICS Code ICS Number Code 71.060.20 (Oxides) DOI: 10.1520/F0007-95R11 ASTM International is a member of CrossRef. ASTM F7This 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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