GB/T 25217.4-2019

GB/T 23561.1-2009 Methods for determining the physical and mechanical properties of coal and rock - Part 1: General requirements for sampling GB/T 25217.5-2019 Methods for test, monitoring and prevention of rock burst—Part 5: Monitoring method of earth-sound GB/T 25217.3-2019 Methods for test, monitoring and prevention of rock burst—Part 3: Classification and laboratory test method on bursting liability of coal-rock combinations sample GB/T 17766-2020 Classifications for mineral resources and mineral reserves GB/T 25217.14-2020 Methods for test, monitoring and prevention of rock burst—Part 14: Prevention method of roof hydraulic fracturing GB/T 23561.8-2024 Methods for determining the physical and mechanical properties of coal and rock—Part 8: Methods for determining the deformation parameters of coal and rock GB/T 23561.11-2024 Methods for determining the physical and mechanical properties of coal and rock —Part 11:Methods for determining shear strength of coal and rock GB/T 23561.1-2024 Methods for determining the physical and mechanical properties of coal and rock—Part 1: General requirements for sampling