Reference number
ISO 2830:1973
© ISO 2024
International Standard
ISO 2830:1973
Cryolite, natural and artificial — Determination of aluminium content — Atomic absorption method
Edition 1
1973-12
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Published (Edition 1, 1973)
This publication was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 2830:1973

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Format
CHF 42
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 1973-12
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee :
    ISO/TC 226
    ICS :
    71.060.50 
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