ASTM B276-21 PDF

Scope: 1.1 This test method specifies procedures for the metallographic determination of apparent porosity in cemented carbides. NOTE 1—The term “apparent porosity” is construed to mean all microstructures observed on a properly prepared, unetched surface, including structures resulting from uncombined carbon, non-metallic inclusions, etc., as well as true, inherent porosity. 1.2 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. 1.3 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 B276-21 Referenced Document

ASTM B243 Standard Terminology of Powder Metallurgy*， 2023-05-01 Update
ASTM B665 Standard Practice for Metallographic Sample Preparation of Cemented Tungsten Carbides

2021 ASTM B276-21 Standard Test Method for Apparent Porosity in Cemented Carbides
2005 ASTM B276-05(2015) Standard Test Method for Apparent Porosity in Cemented Carbides
2005 ASTM B276-05(2010) Standard Test Method for Apparent Porosity in Cemented Carbides
2005 ASTM B276-05e1 Standard Test Method for Apparent Porosity in Cemented Carbides
2005 ASTM B276-05 Standard Test Method for Apparent Porosity in Cemented Carbides
1991 ASTM B276-91(2000) Standard Test Method for Apparent Porosity in Cemented Carbides
2000 ASTM B276-91(1996)e1 Standard Test Method for Apparent Porosity in Cemented Carbides