Standard

ISO 501:1981

Nov 1981 Withdrawn

Note: Now under development: ISO/FDIS 501

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Abstract

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.

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Standard from ISO
Published: November 1 1981
Withdrawn: November 4 2003
Edition: 2
Document type: IS
Pages
ISBN:

Publisher: ISO
Distributor: ISO
ICS: 73.040
International TC: ISO/TC 27

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Revised by: ISO 501:2003

ISO 501:1981

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ISO 501:2012

ISO 501:2003

ISO 501:1981

ISO 501:1974

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Version history History (4)

ISO 501:2012

ISO 501:2003

ISO 501:1981

ISO 501:1974

Abstract

Products specifications

Product Relations

Product life cycle