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ISO 805:1976

Aluminium oxide primarily used for the production of aluminium — Determination of iron content — 1,10- Phenanthroline photometric method ISO 805:1976

Publication date:   Sep 1, 1976

95.99   Withdrawal of Standard   Feb 4, 2016

General information

95.99   Withdrawal of Standard   Feb 4, 2016

ISO

ISO/TC 226 Materials for the production of primary aluminium

International Standard

71.100.10   Materials for aluminium production

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Scope

Applicable to Fe contents, expressed as Fe2 O3 , equal to or more than 0.005 % (m/m). Specifies the preliminary reduction of iron (III) by means of hydroxylammonium chloride. Formation of the iron(II)-1,10-phenanthroline complex in a buffered (pH value between 3.5 and 4.2). Photometric measurement at a wavelength of about 510 nm. Replaces ISO Recommendation R 805/1968.

Life cycle

NOW

WITHDRAWN
ISO 805:1976
95.99 Withdrawal of Standard
Feb 4, 2016




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