Proof
ISO/PRF 9681
Manganese ores and concentrates — Determination of iron content — Flame atomic absorption spectrometric method
Reference number
ISO/PRF 9681
Edition 2
2026-11
© ISO 2026
Proof
Under development (Edition 2, 2026)
This draft is in the approval phase.
Will replace ISO 9681:1990

Abstract

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.

General information

  • Status
     : Under development
    Publication date
     : 2026-11
    Stage
    : Proof sent to secretariat or FDIS ballot initiated: 8 weeks [50.20]
  • Edition
     : 2
    Number of pages
     : 14
  • Technical Committee :
    ISO/TC 132
    ICS :
    73.060.20 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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