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prSSH EN ISO 4491-3:2025

Metallic powders - Determination of oxygen content by reduction methods - Part 3: Hydrogen-reducible oxygen (ISO 4491-3:2025)

General information

40.20     Feb 9, 2026

40.60    May 11, 2026

DPS

DPS/KT 133

European Norm

77.160  

Scope

This document specifies a method for the determination of the hydrogen-reducible oxygen content of metallic powders containing mass percentage of 0,05 % to 3 % oxygen.
This document is applicable to unalloyed, partially alloyed or completely alloyed metal powders and also to mixtures of carbides and binder metal. This document is not applicable to powders containing lubricants or organic binders.
This document can be extended to powders containing carbon by the use of a special catalytic device. This document is intended to be used in conjunction with ISO 760 and ISO 4491-1.

Life cycle

PREVIOUSLY

PUBLISHED
SSH EN ISO 4491-3:2006

NOW

IN_DEVELOPMENT
prSSH EN ISO 4491-3:2025
40.20 DIS ballot initiated: 12 weeks
Feb 9, 2026

Related project

Adopted from EN ISO 4491-3:2025 IDENTICAL

Adopted from ISO 4491-3:2025 IDENTICAL

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