Угли бурые, каменные, антрацит и горючие сланцы. Метод определения коэффициента размолоспособности по ВТИ
褐煤 硬煤 无烟煤和可燃页岩 VTI测定可磨性系数的方法
1994-03-15
GB/T 2565-2014
煤的可磨性指数测定方法 哈德格罗夫法
Determination of grindability index of coal―Hardgrove method
2014-03-27
GB/T 23561.12-2024
煤和岩石物理力学性质测定方法 第 12 部分: 煤的坚固性系数测定方法
Methods for determining the physical and mechanical properties of coal and rock—Part 12:Method for the determination coal hardiness coefficients
2024-08-23
GB/T 23561.7-2009
煤和岩石物理力学性质测定方法 第7部分：单轴抗压强度测定及软化系数计算方法
Methods for determining the physical and mechanical properties of coal and rock - Part 7: Methods for determining the uniaxial compressive strength and counting softening coefficient