Reference number
ISO 4491-2:2023
© ISO 2024
International Standard
ISO 4491-2:2023
Metallic powders — Determination of oxygen content by reduction methods — Part 2: Loss of mass on hydrogen reduction (hydrogen loss)
Edition 3
2023-04
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Published (Edition 3, 2023)

ISO 4491-2:2023

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Format
CHF 63
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Abstract

This document specifies a method for the determination of the relative loss of mass which a metallic powder undergoes when heated in a stream of pure dry hydrogen under specified conditions.

The purpose of this test is to evaluate a chemical powder characteristic which is of importance to the powder metallurgical industry. The test is not intended as a means for the determination of the content of specific elements (see Annex A and ISO 4491-1).

The test method is applicable to unalloyed, partially alloyed and completely alloyed powders of the metals listed in Table 1 (see 7.2.1). It is not applicable to lubricated powders or to mixtures of metal powders.

General information

  • Status
     : Published
    Publication date
     : 2023-04
    Stage
    : International Standard published [60.60]
  • Edition
     : 3
    Number of pages
     : 8
  • Technical Committee :
    ISO/TC 119/SC 2
    ICS :
    77.160 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

12
Responsible Consumption and Production
9
Industry, Innovation and Infrastructure

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