ISO 2830:1973 (R2022)
Active , Reaffirmed Standard
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ISO 2830:1973 (R2022)

Cryolite, natural and artificial — Determination of aluminium content — Atomic absorption method

Summary

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.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 12/01/1973
Confirmation Date 06/13/2022
Edition 1
Page Count 3
EAN ---
ISBN ---
Weight (in grams) ---
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