GB/T 23561.9-2009
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 23561.9-2009
Methods for determining the physical and mechanical properties of coal and rock - Part 9: Methods for determining the triaxial strength and deformation parameters of coal and rock 煤和岩石物理力学性质测定方法 第9部分:煤和岩石三轴强度及变形参数测定方法
Issued Date:2009-04-08
Implemented Date:2009-12-01
Issued by:
The Standardization Administration of the People's Republic of China