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ISO/CD 4694

Iron ores — Determination of fluorine content — Ion-selective electrode method

General information

Current stage: 30.99 Effective date: Oct 8, 2025

Originator: ISO

Owner: ISO/TC 102/SC 2

Type: International Standard

Scope

The method ist applicable to a concentration range of 0,005 to 1,0 % (m/m) of fluorine in natural iron ores, and iron ore concentrates and agglomerates including sinter products. Specifies principle, reagents, apparatus, sampling and samples, procedure, expression of results, and test report. ISO 4693 includes three annexes.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 4694:1987

NOW

IN_DEVELOPMENT
ISO/CD 4694
30.99 CD approved for registration as DIS
Oct 8, 2025