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Norm
ISO 331:1983
Issue date: 1983 09 01
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 desicca...
Withdrawn: 2004 09 28
Publisher:
International Organization for Standardization
Format:
Digital | 3 Pages
Language:
English
ICS
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.
