ISO 2596:2006 PDF

Scope: This International Standard specifies the following four test methods for the determination of the hygroscopic moisture content of test samples: Method 1 — Gravimetric method; Method 2 — Karl Fischer volumetric method; Method 3 — Karl Fischer coulometric method; Method 4 — Mass-loss method. Any of these methods is applicable wherever the analytical value of a chemical constituent is to be calculated to a dried sample basis in the following ore types. a) Processed ores containing metallic iron (direct reduced iron). b) Natural or processed ores in which the sulfur content is greater than 0,2 % (mass fraction). c) Natural or processed ores in which the combined water is greater than 2,5 % (mass fraction). Any of these methods is applicable to a concentration range of 0,05 % (mass fraction) to 4,5 % (mass fraction) hygroscopic moisture. NOTE 1 Where the reportable moisture content of a commercial consignment of ore is required, the procedure in ISO 3087 is used. NOTE 2 With natural or processed ores outside the field of application specified in a), b) or c), a determination of a constituent at any level of concentration may be conducted using any of these methods, or as specified in ISO 7764. NOTE 3 Alternatively, the loss or ignition content may be measured as an estimate of the combined water content.

ISO 2596:2006 Referenced Document

ISO 3082 Iron ores - Sampling and sample preparation procedures*， 2017-07-01 Update
ISO 760 Determination of water; Karl Fischer method (General method)

2006 ISO 2596:2006 Iron ores - Determination of hygroscopic moisture in analytical samples - Gravimetric, Karl Fischer and mass-loss methods
1994 ISO 2596:1994 Iron ores - Determination of hygroscopic moisture in analytical samples - Gravimetric and Karl Fischer methods
1984 ISO 2596:1984 Iron ores; Determination of hygroscopic moisture in analytical samples; Gravimetric and Karl Fischer methods
1980 ISO 2596:1980 Iron ores — Determination of hygroscopic moisture in analytical samples
1973 ISO 2596:1973 Title missing - Legacy paper document