ISO 9681:1990
Manganese ores and concentrates; determination of iron content; flame atomic absorption spectrometric method

Standard No.

ISO 9681:1990

Release Date

1990

Published By

International Organization for Standardization (ISO)

Latest

ISO 9681:1990

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.

ISO 9681:1990 history

• 1990 ISO 9681:1990 Manganese ores and concentrates; determination of iron content; flame atomic absorption spectrometric method