ASTM E159-10 Loss of Mass in a Reducing Gas Atmosphere for Cobalt, Copper, Tungsten, and Iron Powders (Hydrogen Loss)

ASTM E159-10 Loss of Mass in a Reducing Gas Atmosphere for Cobalt, Copper, Tungsten, and Iron Powders (Hydrogen Loss)

ASTM E159-10 test method is used to determine the mass of hydrogen reducible constituents such as oxygen in metals like Cobalt, copper, iron, tungsten.

    Scope:

    ASTM E159-10 test method is useful for cobalt, copper, iron which has an oxygen range from 0.05% to 3%. And for tungsten powder in the range of 0.10% to 0.5% oxygen. And it cannot be used for silicon oxide (SiO2), aluminium oxide (Al2O3), magnesium oxide (MgO), calcium oxide (CaO), titanium dioxide (TiO2), etc. that is not reduced by hydrogen at the test temperatures. 

    Test Procedure

    Test Specimen:

    The test specimen shall weigh approximately 5 g.

    Data

    Calculate the mass loss as follows:

    Where,

    A = original mass of boat and powder specimen, g;

    B = mass of boat and powder specimen after reduction, g

    C = original mass of the boat, g.

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