ASTM-B821:2022 Edition

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B821-22 Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis

Published By	Publication Date	Number of Pages
ASTM	2022	4

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Category: ASTM

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Description

ASTM B821-22

Historical Standard: Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis

ASTM B821

Scope

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 have been found useful for certain materials.

1.2 This guide does not include specific procedures for dry dispersion of particulate materials. It only indicates when liquid dispersion is not appropriate and dry dispersion must be utilized (see 7.1.2.1). For guidance on development of methods of dry dispersion, see Guide E3340.

1.3 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.

1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

liquid dispersion; metal powders; particle size analysis; powder metallurgy ;

ICS Code

ICS Number Code 19.120 (Particle size analysis. Sieving)

DOI: 10.1520/B0821-22

Additional information

Standard Title	B821-22 Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis
Published Code	ASTM
Publication Date	2022
Pages Count	4