ISO 3390:1976

Withdrawn

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

Available format(s)

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

Withdrawn date

24-04-2019

Language(s)

English, French

Published date

01-09-1976

Publisher

International Organization for Standardization

Applicable to products having a Mn content between 0.0002 % (m/m) and 0.005 % (m/m). Preliminary extraction by the method specified in the annex if the apparatus available does not have a sufficient sensitivity. Describes the dissolution of a test sample by heating in a sealed borosilicate glass tube with hydrochloric acid at a controlled temperature of 250 °C. Aspiration of the solution in an air-acetylene flame and spectrophotometric measurement of the absorption of the 279.5-nm line emitted by a manganese hollow cathode lamp.

DevelopmentNote	Also numbered as BS 4140-22(1980) (07/2005)
DocumentType	Standard
Pages	6
PublisherName	International Organization for Standardization
Status	Withdrawn

Standards	Relationship
NFT 20 225 : 80 FD	Identical
NBN T 03 424 : 1983	Identical

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