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英文标准名称：Mechanical sampling of coal--Part 3:Determination of precision and bias test
英文标准名称：Mechanical sampling of coal--Part 1:Method for sampling
英文标准名称：Mechanical sampling of coal--Part 2:Method for sample preparation
英文标准名称：General rules for the sampling and sample preparation of minerals in bulk - Experimental methods for checking the precision and bias
英文标准名称：Fluorspar - Sampling and sample preparation
