Reference number
ISO 331:1983
© ISO 2025
ISO 331:1983
Coal — Determination of moisture in the analysis sample — Direct gravimetric method
Edition 2
1983-09
Withdrawn
Withdrawn (Edition 2, 1983)

Abstract

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

  • Status
     : Withdrawn
    Publication date
     : 1983-09
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 2
    Number of pages
     : 3
  • Technical Committee :
    ISO/TC 27/SC 5
    ICS :
    73.040 
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