This International Standard describes methods for the determination of true relative density and the apparent relative density of brown coals and lignites.
ISO 5072:1997 history
2021ISO 5072:2021 Brown coals and lignites — Determination of true relative density and apparent relative density
2013ISO 5072:2013 Brown coals and lignites.Determination of true relative density and apparent relative density
1997ISO 5072:1997 Brown coals and lignites - Determination of true relative density and apparent relative density