ISO 4691:2009

Iron ores — Determination of titanium — Diantipyrylmethane spectrophotometric method

Publication date: Jun 8, 2009

General information

Current stage: 90.93 Effective date: Jun 24, 2022

Originator: ISO

Owner: ISO/TC 102/SC 2

Type: International Standard

ICS: 73.060.10

Languages: English Russian

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Status: Published

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Scope

ISO 4691:2009 specifies a spectrophotometric method using diantipyrylmethane for the determination of the mass fraction of titanium in iron ores.
ISO 4691:2009 is applicable to a mass-fraction range of 0,02 % to 4,0 % of titanium in natural iron ores, and iron ore concentrates and agglomerates including sinter products.

Life cycle

PREVIOUSLY

Revises
ISO 4691:1985

NOW

PUBLISHED
ISO 4691:2009
90.93 Standard confirmed
Jun 24, 2022

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