Reference number
ISO 4491-2:2023
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
2023-04
Resumen
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.
Informaciones generales
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Estado: PublicadoFecha de publicación: 2023-04Etapa: Norma Internacional publicada [60.60]
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Edición: 3Número de páginas: 8
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Comité Técnico :ISO/TC 119/SC 2ICS :77.160
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Ciclo de vida
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Anteriormente
RetiradaISO 4491-2:1997
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Ahora
