International Standard
ISO 7529:2017
Nickel alloys — Determination of chromium content — Potentiometric titration method with ammonium iron(II) sulfate
Reference number
ISO 7529:2017
ISO 7529:2017
Edición 2
2017-10
2017-10
© ISO 2024
International Standard
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ISO 7529:2017
70202
No disponible en español
Publicado
(Edición 2, 2017)
Esta norma se revisó y confirmó por última vez en 2023.
Por lo tanto, esta versión es la actual.
Resumen
ISO 7529:2017 specifies a potentiometric titration method for the determination of chromium content in nickel alloys which do not contain insoluble carbides and which have a vanadium content less than a mass fraction of 0,2 %. The method is applicable to chromium contents between a mass fraction of 5 % and a mass fraction of 22 %.
Vanadium, which can be present as an impurity in the alloy, will give a positive bias interference. However, at a level of a mass fraction of 0,2 %, this bias is equivalent to a mass fraction of 0,068 % chromium, which is about half the reproducibility of the method.
Informaciones generales
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Estado: PublicadoFecha de publicación: 2017-10Etapa: Norma Internacional confirmada [90.93]
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Edición: 2Número de páginas: 5
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Comité Técnico :ISO/TC 155ICS :77.120.40
- RSS actualizaciones
Ciclo de vida
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Anteriormente
RetiradaISO 7529:1989
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Ahora
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