Washability Characteristics of Low Volatile Pakistani
Crush to -11 mm NGMI Index Clean Coal Ash (%) F. Mir 506, the value of critical specific gravity at 30 mm is and for 11 mm is which shows that at these va l-ues of specific gravities the separation is very difficult even by using gravity method. So keeping this in mind the suggestion is to use Washability index and NGMI could be more useful plus it will help to d