GB/T 5158.3-2011
Metallic powders.Determination of oxygen content by reduction methods.Part 3:Hydrogen-reducible oxygen (English Version)

Standard No.: GB/T 5158.3-2011
Language: Chinese, Available in English version
Release Date: 2011
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 5158.3-2011

Scope: This part of GB/T 5158 specifies the method for the determination of hydrogen-reducible oxygen content in metal powders. The oxygen content ranges from 0.05% to 3% (mass fraction). This standard applies to mixtures of various metals, partially alloyed or fully alloyed metal powders, carbides (tungsten carbide) and binder metals. This method is not suitable for powders containing lubricants or organic binders. This standard is also applicable to carbon-containing powders produced in special catalytic devices.

GB/T 5158.3-2011 Referenced Document

GB/T 5158.1 Metallic powders.Determination of oxygen content by reduction methods.Part 1: General guidelines
ISO 760:1978 Determination of water; Karl Fischer method (General method)

2011 GB/T 5158.3-2011 Metallic powders.Determination of oxygen content by reduction methods.Part 3:Hydrogen-reducible oxygen