ASTM-C721 Standard Test Methods for Estimating Average Particle Size of Alumina and Silica Powders by Air Permeability

ASTM-C721 - 2020 EDITION - CURRENT
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Standard Test Methods for Estimating Average Particle Size of Alumina and Silica Powders by Air Permeability
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Scope

1.1 This test method covers the determination of the average particle size in micrometres of alumina and silica powders using an air permeability method. The test method is intended to apply to the testing of alumina and silica powders in the particle size range from 0.2 to 50 [mu]m.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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.

Keywords

air permeability; alumina; average particle diameter; particle size; quartz; sub-sieve sizer; Number Code 81.060.10 (Raw materials)

To find similar documents by ASTM Volume:

15.02 (Glass; Ceramic Whitewares)

To find similar documents by classification:

81.060.10 (Raw materials)

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Document Number

ASTM-C0721-20

Revision Level

2020 EDITION

Status

Current

Modification Type

Withdrawn

Publication Date

Oct. 12, 2020

Document Type

Test Method

Page Count

7 pages

Committee Number

C21.04