Active Standard ASTM C925 | Developed by Subcommittee: C21.04
Book of Standards Volume: 15.02
Historical (view previous versions of standard)
Significance and Use
Both suppliers and users of pulverized ceramic powders will find this test method useful to determine particle size distributions for materials specifications, manufacturing control, development, and research.
The test method is simple, although tedious, uses inexpensive equipment, and will provide a continuous curve with data obtained with standardized woven sieves.
1.1 This guide covers the determination of the particle size distribution of pulverized alumina and quartz for particle sizes from 45 to 5 μm by wet sieving.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.2.1 The only exception is in the Section 5, Apparatus, 5.1 where there is no relevant SI equivalent.
1.3 This standard does not purport to address the safety concerns 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E161 Specification for Precision Electroformed Sieves
ICS Number Code 81.060.10 (Raw materials)