Bond Tests | Mining | SGSIt can be used at mesh sizes from 65 to 200 mesh (normally 100 mesh). The test . Bond F. C., “Crushing & Grinding Calculations”, Reprint from British Chemical Engineering, Allis-Chalmers . At least 10 pieces of minus 3” plus 2” ore (20 pieces recommended). . SGS Opens Coal Laboratory at Richards Bay Coal Terminal.grinding coal to minus 100 mesh,MECHANICAL AND RELATED PROPERTIES OF SOME EASTERN .grinding) of each coal were determined, because these characteristics . amount of plus 100-mesh material was recorded as the microtumbler strength. In . from the minus 4-mesh coal was much better than with those from the 16- by 30-mesh.
grinding coal to minus 100 mesh