Coal -- Determination of caking power -- Gray-King coke test
This standard has been revised by ISO 502:2015
The sample is heated under standard conditions to a final temperature of 600 C. The coke residue obtained is classified by reference to a series of standard residues. If the coke residue produced is so swollen that it fills the crosssection of the retort tube, the determination is repeated with the coal admixed with a suitable quantity of electrode carbon or equivalent material.
A standard is reviewed every 5 years
Revisions / Corrigenda