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ASTM C721-14

Historical Revision

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

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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.


SDO ASTM: ASTM International
Document Number C721
Publication Date July 1, 2014
Language en - English
Page Count 6
Revision Level 14
Supercedes
Committee C21.04
Publish Date Document Id Type View
Sept. 1, 2020 C0721-20 Revision
Dec. 1, 2015 C0721-15 Revision
July 1, 2014 C0721-14 Revision