Home / Standards / GB 2007.2-87 GB 2007.2-87 General Rules for Sampling and Sample Preparation of Bulk Mineral Products — Manual Sample Preparation Method 散装矿产品取样、制样通则 手工制样方法 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A