EN ISO 4491-4:2019
金属粉末.利用还原法测定氧含量.第4部分:利用还原法测定氧含量

Metallic powders - Determination of oxygen content by reduction methods - Part 4: Total oxygen by reduction-extraction

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标准号

EN ISO 4491-4:2019

发布

2019年

发布单位

CEN - European Committee for Standardization

当前最新

EN ISO 4491-4:2019

 

 

适用范围

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 nonvolatile 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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