What is the difference between ADB and ARB in coal? 2022 ...
2022-2-10 · NAR is NCV ARB. GAR is GCV ARB. What is the difference between ADB and ARB in coal? ADB – Air-Dried Basis. In coal sample analysis, ADB neglects the presence of moistures other than inherent moisture while DB (dry-basis) leaves out all moistures, including surface moisture, inherent moisture, and other moistures. ARB – As-Received Basis.