This part of ISO 4491 specifies a method for the determination of the total oxygen content of metallic powders in concentra-tions up to about 2 % (mlm) by reduction-extraction at high temperature. By agreement, this method is also applicable to the determina-tion of the total oxygen content of sintered metal materials. The method is applicable to all powders of metals, alloys, car-bides 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 shall be read in conjunction with ISO 4491-1.
DS/EN 24491-4-1993由丹麦标准化协会 DK-DS 发布于 1993-07-14,并于 1993-07-14 实施。
非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 DS/EN 24491-4-1993 前三页,或者稍后再访问。
点击下载后,生成下载文件时间比较长,请耐心等待......
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号