Reference number
ISO 331:1983
ISO 331:1983
Coal — Determination of moisture in the analysis sample — Direct gravimetric method
Edition 2
1983-09
Retirada
ISO 331:1983
4274
Retirada (Edición 2, 1983)

Resumen

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.

Informaciones generales

  •  : Retirada
     : 1983-09
    : Retirada de la Norma Internacional [95.99]
  •  : 2
     : 3
  • ISO/TC 27/SC 5
    73.040 
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