Active standard | Published: 01/12/1973

ISO 2830:1973

Cryolite, natural and artificial — Determination of aluminium content — Atomic absorption method
(Cryolithe, naturelle et artificielle — Dosage de l´aluminium — Méthode par absorption atomique)

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Detail information

Designation: ISO 2830:1973

Publication date: 01/12/1973

Pages: 3

Country: International technical standard

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Anotation

Description / 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.

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