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ASTM International - ASTM B330-20

Standard Test Methods for Estimating Average Particle Size of Metal Powders and Related Compounds Using Air Permeability

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Organization: ASTM International
Publication Date: 1 October 2020
Status: active
Page Count: 7
ICS Code (Powder metallurgy): 77.160
significance And Use:

4.1 These test methods provide procedures for determining the envelope-specific surface area of powders, from which is calculated an "average" particle diameter, assuming the particles are... View More

scope:

1.1 These test methods use air permeability to determine an envelope-specific surface area and its associated average equivalent spherical diameter (from 0.2 to 75μm) of metal powders and related compounds. The powders may be analyzed in their "as-supplied" (shipped, received, or processed) condition or after they have been de-agglomerated or milled by a laboratory procedure ("lab milled") such as that specified in Practice B859. The values obtained are not intended to be absolute but are generally useful on a relative basis for control purposes.

1.2 Units-With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic centimetre (g/cm3) and gram (g) units is the longstanding industry practice; and the units for pressure, cm H2O - also long-standing practice; the values in SI units are to be regarded as standard.

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

1.4 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.

Document History

ASTM B330-20
October 1, 2020
Standard Test Methods for Estimating Average Particle Size of Metal Powders and Related Compounds Using Air Permeability
4.1 These test methods provide procedures for determining the envelope-specific surface area of powders, from which is calculated an “average” particle diameter, assuming the particles are monosize,...
October 1, 2015
Standard Test Methods for Estimating Average Particle Size of Metal Powders and Related Compounds Using Air Permeability
4.1 These test methods provide procedures for determining the envelope-specific surface area of powders, from which is calculated an “average” particle diameter, assuming the particles are monosize,...
November 1, 2012
Standard Test Methods for Estimating Average Particle Size of Metal Powders and Related Compounds Using Air Permeability
4.1 These test methods provide procedures for determining the envelope-specific surface area of powders, from which is calculated an “average” particle diameter, assuming the particles are monosize,...
March 15, 2007
Standard Test Method for Fisher Number of Metal Powders and Related Compounds
This test method provides a procedure for determining the envelope-specific surface area of powders, from which is calculated an “average” particle diameter, assuming the particles are monosize,...
October 1, 2005
Standard Test Method for Fisher Number of Metal Powders and Related Compounds
1.1 This test method uses air permeability to determine an envelope-specific surface area and its associated average equivalent spherical diameter (from 1 to 50 m) of metal powders and related...
October 10, 2002
Standard Test Method for Fisher Number of Metal Powders and Related Compounds
1.1 This test method uses air permeability to determine an envelope-specific surface area and its associated average equivalent spherical diameter (from 1 to 50 m) of metal powders and related...
October 10, 2000
Standard Test Method for Fisher Number of Metal Powders and Related Compounds
1.1 This test method uses air permeability to determine an envelope-specific surface area and its associated average equivalent spherical diameter of metal powders and related compounds. The powders...
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