International Standard
ISO 2830:1973
Cryolite, natural and artificial — Determination of aluminium content — Atomic absorption method
Reference number
ISO 2830:1973
ISO 2830:1973
Edición 1
1973-12
1973-12
© ISO 2024
International Standard
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ISO 2830:1973
7827
No disponible en español
Publicado
(Edición 1, 1973)
Esta norma se revisó y confirmó por última vez en 2022.
Por lo tanto, esta versión es la actual.
Resumen
Applicable to products having a normal composition for which the molar ratio NaF/AlF3 is equal to about 3. Dissolution of a test portion in concentrated suphuric acid and elimination of hydrogen fluoride. Treatment with hydrochloric acid and water. Atomization of the solution into an acetylene measurement of the absorption of the 309.3 nm line emitted by an aluminium hollow cathode lamp. Has also been approved by the IUPAC.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1973-12Etapa: Norma Internacional confirmada [90.93]
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Edición: 1Número de páginas: 3
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Comité Técnico :ISO/TC 226ICS :71.060.50
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