Standard

ISO 331:1983

Tilbaketrukket

Rettelser og tillegg kjøpes separat.

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Omfang

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.

Dokumentinformasjon

  • Standard fra ISO
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 2
  • Versjon: 1
  • Varetype: IS
  • ICS 73.040
  • ISO TC ISO/TC 27/SC 5

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