ISO 2071:1976

Withdrawn

Aluminium oxide primarily used for the production of aluminium Determination of zinc 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Withdrawn date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

01-09-1976

Publisher

International Organization for Standardization

The method is applicable to products having Zn contents equal to or greater than 0,002 % (m/m). Dissolution of a test portion by hydrochloric acid under pressure. Aspiration of the solution into an acetylene-air flame and photometric measurement of the absorption of the 213,7 nm line emitted by a hollow-cathode zinc lamp. The dissolution of the sample can also be carried out by an alkaline fusion. This method is given in the annex. Replaces ISO Recommendation R 2071-1971.

DevelopmentNote	Also numbered as BS 4140-16(1986) (07/2005)
DocumentType	Standard
Pages	4
PublisherName	International Organization for Standardization
Status	Withdrawn

Standards	Relationship
NBN T 03 415 : 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 4140-4:1986	Methods of test for aluminium oxide Preparation of sample solution by alkaline fusion
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 4140-1:1986	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