ISO 2069:1976

Withdrawn

Aluminium oxide primarily used for the production of aluminium Determination of calcium content Flame atomic absorption method

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

09-05-2019

Language(s)

English, French

Published date

01-08-1976

Publisher

International Organization for Standardization

This method is applicable to products having Ca contents greater than 0,003 % (m/m). The principle consists in dissolution of a test portion by the influence of hydrochloric acid under pressure. Addition of sodium ions to promote and to stabilize the emission of calcium, and of lanthanum ions or triethanolamine to increase the sensitivity. Aspiration of the solution into an acetylene-dinitrogen monoxide flame and photometric measurement of the absorption of the 422,7 nm line emitted by a hollow-cathode calcium lamp. For the determination of higher CaO contents (over about 0,03 % (m/m)) an acetylene-air flame can be used. Replaces ISO Recommendation R 2069-1971.

DocumentType	Standard
Pages	4
PublisherName	International Organization for Standardization
Status	Withdrawn

Standards	Relationship
NBN T 03 413 : 1983	Identical

BS 4140-8:1986	Methods of test for aluminium oxide Determination of absolute density using a pyknometer
BS 4140-6:1980	Methods of test for aluminium oxide Determination of titanium content
BS 4140-9:1986	Methods of test for aluminium oxide Measurement of the angle of repose
BS 4140-13:1986	Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure
BS 4140-16:1986	Methods of test for aluminium oxide Determination of zinc content by flame atomic absorption
BS 4140-7:1986	Methods of test for aluminium oxide Determination of iron content
BS 4140-22:1980	Methods of test for aluminium oxide Determination of manganese content
BS 4140-5:1986	Methods of test for aluminium oxide Determination of silica content
BS 4140-4:1986	Methods of test for aluminium oxide Preparation of sample solution by alkaline fusion
BS 4140-1:1986	Methods of test for aluminium oxide Preparation and storage of test samples
BS 4140-12:1986	Methods of test for aluminium oxide Determination of vanadium content
BS 4140-11:1986	Methods of test for aluminium oxide Determination of sodium content
BS 4140-10:1986	Methods of test for aluminium oxide Determination of untamped density