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ISO 4491-4 2nd Edition, May 1, 2013 Metallic powders - Determination of oxygen content by reduction methods - Part 4: Total oxygen by reduction-extraction
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 4491 specifies a method for the determination
of the total oxygen content of metallic powders by
reduction-extraction at high temperature.
By agreement, this method is also applicable to the
determination of the total oxygen content of sintered metal
materials.
The method is applicable to all powders of metals, alloys,
carbides, and mixtures thereof which are non-volatile under the
test conditions. The sample may be in powder or compact form.
The analysis is carried out on the powder as supplied, but the
method is not applicable if the powder contains a lubricant or
binder. If such substances are present, the method may be used only
if they can first be completely removed by a method not affecting
the oxygen content of the powder.
This part of ISO 4491 is to be read in conjunction with ISO
4491-1.