标准编号：ISO 4491-4:2019
中文名称：金属粉末 还原法测定氧含量 第4部分：还原-提取法测定总氧量
英文名称：Metallic powders — Determination of oxygen content by reduction methods — Part 4: Total oxygen by reduction-extraction
发布日期：2019-04
标准范围
This document 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 can 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 document is to be read in conjunction with ISO 4491-1.
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