Download or read book GB T 5158 4 2011 Translated English of Chinese Standard GB T 5158 4 2011 GBT5158 4 2011 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-07-26 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part of GB/T 5158 specifies a method for the determination of the total oxygen content of metallic powders in concentrations up to 2 % (mass fraction) 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. This Part is applicable to all powders of metals, alloys, carbides (hard alloys) 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 shall be used in conjunction with GB/T 5158.1.