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ISO 9681:1990

Manganese ores and concentrates — Determination of iron content — Flame atomic absorption spectrometric method

Publication date:   Oct 25, 1990

General information

90.92   Standard to be revised   Apr 26, 2024

ISO

ISO/TC 132 Ferroalloys

International Standard

73.060.20   Manganese ores

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Scope

The method is applicable to products having an iron content between 0,2 % (m/m) and 10 % (m/m). ISO 9681 should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sampling and samples, procedure, and expression of results.

Life cycle

NOW

PUBLISHED
ISO 9681:1990
90.92 Standard to be revised
Apr 26, 2024

REVISED BY

IN_DEVELOPMENT
ISO/PRF 9681