ASTM-B859 Standard Practice for De-Agglomeration of Refractory Metal Powders and Their Compounds Prior to Particle Size Analysis

ASTM-B859 - 2021 EDITION - CURRENT
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Standard Practice for De-Agglomeration of Refractory Metal Powders and Their Compounds Prior to Particle Size Analysis
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Scope

1.1 This practice covers the de-agglomeration of refractory metal powders and their compounds in preparation for particle size analysis.

1.2 Experience has shown that this practice is satisfactory for the de-agglomeration of elemental tungsten, molybdenum, rhenium, and tantalum metal powders, and tungsten carbide. Other metal powders (for example, elemental metals, carbides, and nitrides) may be prepared for particle size analysis using this practice with caution as to effectiveness until actual satisfactory experience is developed.

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. For specific precautionary statements, see Note 2.

Keywords

De-agglomeration; Laboratory-milled powders; Metal powders; Molybdenum; Particle analysis-metallic materials; Powders; Refractory metal powders; Rhenium; Rod-milled powders; Tantalum; Tungsten; Tungsten carbide; de-agglomeration-refractory metal powders/their compounds, prior to; particle size analysis, practice; ICS Number Code 77.160 (Powder metallurgy)

To find similar documents by ASTM Volume:

02.05 (Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products)

To find similar documents by classification:

77.160 (Powder metallurgy Including sintered metal materials and hardmetals)

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Document Number

ASTM-B0859-21

Revision Level

2021 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

May 25, 2021

Document Type

Practice

Page Count

6 pages

Committee Number

B09.03