ASTM-E159:2022 Edition(Redline)

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E159-22 Standard Test Method for Loss of Mass in a Reducing Gas Atmosphere for Cobalt, Copper, Tungsten, and Iron Powders (Hydrogen Loss) (Redline)

Published By	Publication Date	Number of Pages
ASTM	2022	5

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Description

ASTM E159-22

Redline Standard: Standard Test Method for Loss of Mass in a Reducing Gas Atmosphere for Cobalt, Copper, Tungsten, and Iron Powders (Hydrogen Loss)

ASTM E159

Scope

1.1 This test method covers the determination of the mass of hydrogen-reducible constituents in the following metal powders: cobalt, copper, iron, and tungsten.

1.2 This test method is useful for cobalt, copper, and iron powders in the range from 0.05 to 3.0 % oxygen, and for tungsten powder in the range from 0.01 to 0.50 % oxygen.

1.3 This test method does not measure the oxygen contained in oxides such as silicon oxide (SiO₂), aluminum oxide (Al₂O₃), magnesium oxide (MgO), calcium oxide (CaO), titanium dioxide (TiO₂), etc. that are not reduced by hydrogen at the test temperatures.

1.4 For total oxygen content, vacuum or inert gas fusion methods are available (see Test Methods E1019).

1.5 Untis—The values stated in SI units are to be regarded as the standard.

1.6 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.

1.7 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.

Keywords

chemical analysis; cobalt powder; copper powder; hydrogen loss; iron powder; metal powders; oxygen content; tungsten powder ;

ICS Code

ICS Number Code 77.160 (Powder metallurgy)

DOI: 10.1520/E0159-22

Additional information

Standard Title	E159-22 Standard Test Method for Loss of Mass in a Reducing Gas Atmosphere for Cobalt, Copper, Tungsten, and Iron Powders (Hydrogen Loss) (Redline)
Published Code	ASTM
Publication Date	2022
Pages Count	5