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1.1 This guide covers the dispersion in liquids of metal powders and related compounds for subsequent use in particle size analysis instruments. This guide describes a general procedure for achieving and determining dispersion; it also lists procedures that are currently in general use for certain materials.
1.2 This guide is limited to metal powders and related metal compounds. However, the general procedure described herein may be used, with caution as to its significance, for other particulate materials, such as ceramics, pigments, minerals, etc.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B243 Terminology of Powder Metallurgy
B430 Test Method for Particle Size Distribution of Refractory Metal Powders and Related Compounds by Turbidimetry
B761 Test Method for Particle Size Distribution of Metal Powders and Related Compounds by X-Ray Monitoring of Gravity Sedimentation
B822 Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light Scattering
ICS Number Code 19.120 (Particle size analysis. Sieving)
ASTM B821-02, Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis, ASTM International, West Conshohocken, PA, 2002, www.astm.orgBack to Top