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ISO 501:1981

Coal — Determination of the crucible swelling number

Standard Details

The sample is heated in a covered crucible under standard conditions to a final temperature of 820 +- 5 °C. The coke button obtained is classified by comparison with the outlines of a set of standard profiles. The number of the profile most closely corresponding to the coke button obtained is the crucible swelling number. Gas or electrical heating may be used. When using an electrically heated apparatus, the results obtained should be the same (within 1/2 unit) as those obtained by the gas heating method.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 501:1981
Document Year: 1981
Pages: 5
Edition: 2

Life Cycle

WITHDRAWN

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WITHDRAWN
ISO 501:1981

WITHDRAWN
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