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

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

12-01-1973

Publisher

International Organization for Standardization

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.

DocumentType	Standard
Pages	3
ProductNote	This standard are also referes to ISO/R 1619
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
BS 5050:1974	Similar to
NBN T 03 440 : 1983	Identical

ISO/TR 4277:2009	Cryolite, natural and artificial Conventional test for evaluation of free fluorides content
PD ISO/TR 4277:2009	Cryolite, natural and artificial. Conventional test for evaluation of free fluorides content