This standard specifies the determination of coefficient of coal grindability (VTI method).
This standard is applicable to the determination of grindability coefficient of lignite, bituminous coal, anthracite and oil shale.
Foreword i 1 Scope 1 2 Normative References 1 3 Method Summary 1 4 Instruments and Equipments 1 5 Sampling of Coal 2 6 Preparation of Coal Sample 2 7 Preparation of Instruments and Equipments 3 8 Determination Procedures 3 9 Calculation of Test Result 4 10 Method Precision 5 Appendix A (Normative) Drawing of Standard Curve 6
