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ISO 335:1974

Hard coal -- Determination of caking power -- Roga test

General information
Withdrawn from 28.09.2004
ICS Groups
73.040 Coals
Directives or regulations
None

Standard history

Status
Date
Type
Name
The caking power of a coal is defined by the mechanical strength of the crucible coke obtained by carbonization under standard conditions of an intimate mixture of 1 g of coal and 5 g of standard anthrazite. The crucible coke obtained is then submitted to a drum test in a strictly prescribed manner and the Roga Index is calculated from the results.
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Standard monitoring