ISO 2830:1973
Cryolite, natural and artificial; Determination of aluminium content; Atomic absorption method

Standard No.

ISO 2830:1973

Release Date

1973

Published By

International Organization for Standardization (ISO)

Latest

ISO 2830:1973

Scope

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.

ISO 2830:1973 history

• 1973 ISO 2830:1973 Cryolite, natural and artificial; Determination of aluminium content; Atomic absorption method