ASTM D2799-21 PDF Download

The standard test procedure, ASTM D2799-21, focuses on the microscopic analysis of the maceral composition of coal. The tools and procedures required to ascertain a coal sample's physical composition, including the volume proportion of organic and mineral matter, are covered by this standard.

It is important to note that this test method uses the word "weight" because it is commonly used in trade. However, as the term could be used to refer to either force or mass, it is crucial to distinguish between the two. In the SI unit system, mass is measured in kilogrammes and force in newtons.

With the use of this standard, it is possible to accurately characterise coal samples by determining the mineral composition of coal in a systematic and trustworthy manner. Industries can decide on coal's use and future uses by having a clear understanding of the organic components and mineral matter it contains.