ASTM C 721 : 2015
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Test Methods for Estimating Average Particle Size of Alumina and Silica Powders by Air Permeability
Hardcopy , PDF
10-15-2020
English
12-01-2015
These test methods cover the estimation of the average particle size in micrometres of alumina and silica powders using an air permeability method.
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