SSH ISO 7990:1985

Manganese ores and concentrates — Determination of total iron content — Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method

Publication date: May 10, 2016

General information

Current stage: 60.60 Effective date: Mar 2, 2016

Originator: DPS

Owner: DPS/KT 133

Type: International Standard

ICS: 73.060.20

Languages: English

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Status: Published

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Scope

Method A is applicable to products having a total iron content from 1 to 25 % (m/m), and method B is applicable to products having a total iron content from 0.2 to 2 % (m/m). ISO 7990 should be read in conjunction with ISO 4297. Specifies principle, reactions (method A only), reagents, apparatus, sampling and samples, procedure and expression of results.

Life cycle

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PUBLISHED
SSH ISO 7990:1985
60.60 Standard published
Mar 2, 2016

Related project

Adopted from ISO 7990:1985

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