ASTM E2980-20 PDF

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 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/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.

ASTM E2980-20 Referenced Document

ASTM B330 Standard Test Method for Fisher Number of Metal Powders and Related Compounds*， 2024-04-20 Update
ASTM B859 Standard Practice for De-Agglomeration of Refractory Metal Powders and Their Compounds Prior to Particle Size Analysis
ASTM E1638 Standard Terminology Relating to Sieve Analysis
ASTM E2589 Standard Terminology Relating to Nonsieving Methods of Powder Characterization*， 2023-09-01 Update
ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ISO 10070 Metallic powders — Determination of envelope-specific surface area from measurements of the permeability to air of a powder bed under steady-state flow conditions

2020 ASTM E2980-20 Standard Test Methods for Estimating Average Particle Size of Powders Using Air Permeability
2015 ASTM E2980-15 Standard Test Methods for Estimating Average Particle Size of Powders Using Air Permeability
2014 ASTM E2980-14 Standard Test Methods for Estimating Average Particle Size of Powders Using Air Permeability