ASTM E159-00
Historical Standard: ASTM E159-00 Standard Test Method for Hydrogen Loss of Cobalt, Copper, Tungsten, and Iron Powders
SUPERSEDED (see Active link, below)
ASTM E159
1. Scope
1.1 This test method covers the determination of oxygen due to the presence of hydrogen-reducible oxides in copper, tungsten, and iron powders. This test method consists of subjecting a sample of powder to the action of a hydrogen-containing gas under standard conditions of temperature and time and measuring the resulting loss of weight. This test method is useful for 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. This test method does not measure the oxygen contained in oxides such as silicon oxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), magnesium oxide (MgO), calcium oxide (CaO), titanium dioxide (TiO 2 ), etc. that are not reduced by hydrogen at the test temperatures. For total oxygen content, vacuum or inert gas fusion methods are available.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
B215 Practices for Sampling Metal Powders
B243 Terminology of Powder Metallurgy
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1019 Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by Various Combustion and Fusion Techniques
Keywords
chemical analysis; cobalt powder; copper powder; hydrogen loss; iron powder; metal powders; oxygen content; tungsten powder; Chemical analysis; Copper powder; Hydrogen content--metals/alloys; Hydrogen loss; Iron powder; Metal powders; Oxides (hydrogen reducible); Tungsten powder ;
ICS Code
ICS Number Code 77.160 (Powder metallurgy)
DOI: 10.1520/E0159-00
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