ISO/DIS 9681

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

General information

Current stage: 40.20 Effective date: Jan 12, 2026

Originator: ISO

Owner: ISO/TC 132

Type: International Standard

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

PREVIOUSLY

PUBLISHED
ISO 9681:1990

NOW

IN_DEVELOPMENT
ISO/DIS 9681
40.20 DIS ballot initiated: 12 weeks
Jan 12, 2026

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