Which one is the best basis to use for coal calories? ADB
ARB AsReceived Basis. In coal sample analysis, ARB puts all variables into consideration and uses the total weight as the basis of measurement. GAR Gross As Received. Thermal coal is quoted on a GAR basis, except for Europe/ARA, Richards Bay 6,000 kcal/kg, and Japan and Korea West CIF, which are quoted on a NAR (Net As Received) basis.