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ISO 501:2012Withdrawn

Hard coal — Determination of the crucible swelling number

Houille — Détermination de l'indice de gonflement au creuset

This edition has been replaced by ISO 501:2025.

Abstract / scope

ISO 501:2012 specifies a method for determining the swelling properties of hard coal when heated in a covered crucible.

The "crucible swelling number" (CSN) is also known as the "free swelling index" (FSI).

Life cycle

Replaces

ISO 501:2003WithdrawnHard coal — Determination of the crucible swelling numberInternational Standard · Published 4 Nov 2003 · ISO/TC 27/SC 5

Replaced by

ISO 501:2025PublishedHard coal — Determination of the crucible swelling numberInternational Standard · Published 1 May 2025 · ISO/TC 27/SC 5