Assessment mothed of modern coal mine
valid
Issued on:2023-09-07
Regulation for testing the physical and mechanical properties of rock. Part 5:Test for determining the water absorption of rock
Issued on:2015-02-04
Regulation for testing the physical and mechanical properties of rock. Part 6: Test for determining the hardness of rock
Regulation for testing the physical and mechanical properties of rock. Part 7:Test for determining the glossiness of rock
Regulation for testing the physical and mechanical properties of rock. Part 8: Test for determining the frost resistivity of rock
Regulation for testing the physical and mechanical properties of rock. Part 9:Test for determining the slake durability of rock
Quality inspection rule of geological instrument product
Issued on:1992-11-11