China 'GB/T 24233-2009
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 24233-2009
Manganese and chromium ores - Experimental methods for evaluation of quality variation and methods for checking the precision of sampling 锰矿石和铬矿石 评定品质波动和校核取样精密度的试验方法
Issued Date:2009-07-15
Implemented Date:2010-04-01
Issued by:
The Standardization Administration of the People's Republic of China