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ASTM F 7 : 1995 : R2016

ASTM F 7 : 1995 : R2016

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Standard Specification for Aluminum Oxide Powder

Available format(s)

Hardcopy , PDF

Superseded date

03-12-2023

Language(s)

English

Published date

13-05-2016

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 10.04, 2016 Defines 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.

Committee
F 01
DocumentType
Standard
Pages
3
ProductNote
Reconfirmed 2016
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

1.1This 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:

1.1.1Particle Sizes:

1.1.1.1Class A—Particle size No. 500 nominal mesh (nominal average particle size = 24.3 μm).

1.1.1.2Class B—Particle size No. 900 nominal mesh (nominal average particle size = 1.7 μm).

1.1.2Chemical Grades—Grades 1 and 2 as specified under chemical requirements in Section 3.

1.1.3Acidity Levels: pH (acid) 4.5 to 6.5 and pH (neutral) 6.5 to 7.5.

1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3The 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 E 70 TEST METHOD FOR PH OF AQUEOUS SOLUTIONS WITH THE GLASS ELECTRODE

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