General rules for the sampling and sample preparation of minerals in bulk—Experimental methods for checking the precision and bias
国家认证认可监督管理委员会
本部分规定了偏差、精密度校核的术语和试验方法。
本部分适用于按GB/T 2007.1和GB/T 2007.2所列取样、制样方法精密度的校核，以及对需校核的取样方法、取样装置进行偏差校核试验，也可用于制样方法、缩分设备偏差的校核。
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