Screening Sizes

All agricultural liming material sold, offered for sale, or distributed in this State shall be crushed or ground to such a degree of fineness that not less than eighty-five percent (85 %) of the material will pass a 10- mesh screen and not less than fifty percent (50%) will pass a 40-mesh screen. The use of a 60-mesh screen is optional and if used must be so labeled and used in the calculation of the Relative Neutralizing Value (RNV).