Technical Market Support » Metallurgical Coal
There are various national and international standards for Coal Laboratories to use for the Dilatation test. The results reported vary depending on which standard is used which causes issues when results are used at an international level and particularly relevant to coal sales contracts. A draft new ISO Dilatometer standard has just been written and this project has tested the ruggedness of this new method against the current standards.
This project has developed one single International Standard for Dilatation that could be used by laboratories throughout the world. Having one Dilatation Standard should improve methods for predicting blend dilatation which would help coal suppliers to target the correct coal against specifications for given blend situations and remove potential confusion from having alternative methods.