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ISO 2598-1:1992

Iron ores — Determination of silicon content — Part 1: Gravimetric methods

Dec 10, 1992

General information

90.20     Oct 15, 2025

ISO

ISO/TC 102/SC 2

International Standard

73.060.10  

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Scope

The method is based on decomposition of the test portion by 1) sintering with sodium peroxide and treatment with hydrochloric and perchloric acids and treatment with dilute nitric acid, or 2) treatment with hydrochloric, nitric and perchloric acids, evaporation, filtration of silica with any residue, fusion with sodium carbonate and dissolution in hydrochloric and perchloric acids, in both cases evaporation of the solution, filtration of the precipitated silica, ignition, and weighing, treatment of the ignited residue with hydrofluoric and sulfuric acid, ignition, and reweighing. Applies to silicon contents between 1 % and 15 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 2598:1980

NOW

PUBLISHED
ISO 2598-1:1992
90.20 Standard under periodical review
Oct 15, 2025

National adoptions

SRPS ISO 2598-1:1997  
ISS

Iron ores — Determination of silicon content — Part 1: Gravimetric methods

90.20   Standard under periodical review

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