ASTM E2980 - 20 - Standard Test Methods for Estimating Average Particle Size of Powders Using Air Permeability

ASTM E2980 - 20

Standard Test Methods for Estimating Average Particle Size of Powders Using Air Permeability

Status : Current   Published : October 2020

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PDF

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HARDCOPY



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 75 µm) of powders. Two test methods are described: One test method for inorganic materials (Test Method 1), and another test method for organic materials (Test Method 2). 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/cm 3) and gram (g) units is the longstanding industry practice; and the units for pressure, cm H 2 O – 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.




Standard NumberASTM E2980 - 20
TitleStandard Test Methods for Estimating Average Particle Size of Powders Using Air Permeability
StatusCurrent
Publication Date01 October 2020
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors air permeability, average particle size, envelope-specific surface area, particle size, permeability, porosity, powder, specific surface
ICS19.120
PublisherASTM
FormatA4
DeliveryYes
Pages5
File Size128 KB
Price£42.00


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