Home / Standards / GB/T 7146-1986 GB/T 7146-1986 Active Methods of sampling and sample preparation ofantimony ores in bags 袋装锑矿石取样、制样方法 Standard Type GBT ICS 73.060 CCS D42 Status 现行 Issue Date 1986-12-30 Implementation 1987-11-01 Responsible Dept 市场监管总局 Drafting Unit N/A