How is coal grade calculated?
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Coal analysis calculations
Mining Coal Calculations
AD factor (converts AD to Nominated Moisture (NM)): (100-NM)/(100-ADM) NM = AD / ((100-NM)/(100-ADM))
Dry factor (converts AD to Dry) (100-ADM)/100. Dry = AD / ((100-ADM)/100)
AR factor (converts Dry to AR): (100-TM)/100. ...
DAF factor (converts Dry to DAF): (100-Dry Ash)/100.
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