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4274
ISO 331:1983
Coal -- Determination of moisture in the analysis sample -- Direct gravimetric method
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.
General information
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Status : WithdrawnPublication date : 1983-09
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Edition : 2
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- ICS :
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Coals
Life cycle
A standard is reviewed every 5 years
Revisions / Corrigenda
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Now withdrawn
ISO 331:1983
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