GB 2007.5-87
General Rules for Sampling and Sample Preparation of Bulk Mineral Products — Test Method for Verifying Sampling System Bias
散装矿产品取样、制样通则 取样系统误差校核试验方法
📚 References & Relations / 引用与关联
normative_reference
GB 2007.1
normative_reference
GB 2007.3
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GB 2007.4
normative_reference
GB 2008