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ISO 501:1981

Coal — Determination of the crucible swelling number

Nov 1, 1981
95.99 Withdrawal of Standard   Nov 4, 2003

General information

95.99     Nov 4, 2003

ISO

ISO/TC 27

International Standard

73.040  

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Scope

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.

Life cycle

NOW

WITHDRAWN
ISO 501:1981
95.99 Withdrawal of Standard
Nov 4, 2003

REVISED BY

WITHDRAWN
ISO 501:2003