ISO 7335:1987Published

Iron ores — Determination of combined water content — Karl Fischer titrimetric method

Minerais de fer — Dosage de l'eau de constitution — Méthode titrimétrique de Karl Fischer

A new edition is under development: ISO/DIS 7335.

Abstract / scope

This method ist applicable to a concentration range of 0,05 to 10 % (m/m) of combined water in natural iron ores, and iron ore concentrates and agglomerates including sinter products. The term combined water means that part of the water content of an iron ore that can be removed only at temperatures substantially higher than 100 to 110 °C. Figures show the general arrangement of the test apparatus for the Karl Fischer measurement, the heating tube, and the absorption cell. Includes three annexes.

Life cycle

Replaced by

ISO/DIS 7335Under developmentIron ores — Determination of combined water content — Karl Fischer titrimetric methodInternational Standard · ISO/TC 102/SC 2