ISO 589:2008-ed.4.0

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Bezeichnung: ISO 589:2008-ed.4.0

Ausgabedatum: 28.10.2008

Seiten: 9

Land: Internationale technische Norm

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Description / Abstract: ISO 589:2008 describes two methods for determination of the total moisture content of hard coals, a two-stage method and a single-stage method. For either method there is a choice between drying in air and drying in a nitrogen atmosphere. Depending on the coal rank, there may be systematic differences between the results obtained by drying in the different atmospheres on subsamples of a sample. Drying in a nitrogen atmosphere is suitable for all hard coals, while drying in air is only suitable for hard coals not susceptible to oxidation.