ISO 540:2025Published

Hard coal — Determination of ash fusibility

Houille — Détermination de la fusibilité des cendres

Abstract / scope

This document specifies a method of determining the characteristic fusion temperatures of ash from hard coal.

NOTE            Descriptors: fossil fuels, ash, ashes, tests, high temperature tests, determination, and fusibility.

Life cycle

Replaces

ISO 540:2008WithdrawnHard coal and coke — Determination of ash fusibilityInternational Standard · Published 28 May 2008 · ISO/TC 27/SC 5