China 'GB/T 23561.2-2009
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 23561.2-2009
Methods for determining the physical and mechanical properties of coal and rock - Part 2: Methods for determining the true density of coal and rock 煤和岩石物理力学性质测定方法 第2部分:煤和岩石真密度测定方法
Issued Date:2009-04-08
Implemented Date:2009-12-01
Issued by:
The Standardization Administration of the People's Republic of China