Home / Standards / GB/T 14263-2010 GB/T 14263-2010 Active Methods for sampling and sample preparation of flotation copper concentrates in bulk 散装浮选铜精矿取样、制样方法 Standard Type GBT ICS 77.120.01 CCS D42 Status 现行 Issue Date 2010-12-23 Implementation 2011-09-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A