Reference number
ISO 2598-1:1992
ISO 2598-1:1992
© ISO 2024
International Standard
ISO 2598-1:1992
Iron ores — Determination of silicon content — Part 1: Gravimetric methods
Edition 1
1992-12
1992-12
ISO 2598-1:1992
7583
Publicado
(Edición 1, 1992)
Esta publicación se revisó y confirmó por última vez en 2022.
Por lo tanto, esta versión es la actual.
Resumen
The method is based on decomposition of the test portion by 1) sintering with sodium peroxide and treatment with hydrochloric and perchloric acids and treatment with dilute nitric acid, or 2) treatment with hydrochloric, nitric and perchloric acids, evaporation, filtration of silica with any residue, fusion with sodium carbonate and dissolution in hydrochloric and perchloric acids, in both cases evaporation of the solution, filtration of the precipitated silica, ignition, and weighing, treatment of the ignited residue with hydrofluoric and sulfuric acid, ignition, and reweighing. Applies to silicon contents between 1 % and 15 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1992-12Etapa: Norma Internacional confirmada [90.93]
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Edición: 1Número de páginas: 9
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Comité Técnico :ISO/TC 102/SC 2ICS :73.060.10
- RSS actualizaciones
Ciclo de vida
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Anteriormente
RetiradaISO 2598:1980
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Ahora