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ISO 331:1983

Coal -- Determination of moisture in the analysis sample -- Direct gravimetric method

General information
Withdrawn from 28.09.2004
ICS Groups
73.040 Coals
Directives or regulations
None
Standard history
Status
Date
Type
Name
The sample of coal is heated at 105 to 110 °C in a stream of oxygen-free, dry nitrogen and the moisture driven off is collected in an absorption tube containing a desiccant. The increase in mass of the absorption tube (after deducting the result of a separate blank determination) is due to moisture in the sample of coal.
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