ISO 589:2008 PDF Download

The ISO 589:2008 standard offers instructions for calculating the total moisture content of hard coals. The standard specifies a two-stage approach and a single-stage method for carrying out this analysis. Both techniques offer the option of drying in an environment of nitrogen or in the open air.

The coal rank affects the drying technique selection. It's significant to note that when employing various atmospheres for drying subsamples of a sample, there may be systematic discrepancies in the results. All kinds of hard coals are acceptable for drying in a nitrogen atmosphere. On the other hand, hard coals that are resistant to oxidation should only be dried in the air.

This standard ensures correct and precise measurement of the total moisture content in hard coal while taking into account a number of variables that may have an impact on the results. The testing procedure can be made consistent and reliable by adhering to ISO 589:2008, allowing for accurate evaluation and classification of hard coals based on their moisture content.