The results show that homogeneity of samples, correct determine of control range of reading errors and correct estimation of bacterium account are elements that affect accuracy of aerobic plate count.
通过多个实验表明，试样的均衡性、读数误差控制范围的正确确定以及样本菌量的正确估计，都是影响实验室菌落计数精密度控制的因素。
The method of the homogeneity testing of titanium-alloy CRM for spectroscopy analysis was given, which included samples selecting, testing and analysis.
介绍钛合金光谱分析用标准物质均匀性检验的抽样、试、验及判断方法。
Through sizing experiments, homogeneity and stability tests of the samples, the results show that the elements to be determined are homogeneously distributed in samples.
样品经粒度筛分试验、均匀度及稳定性检验，证明其中被检验元素分布均匀。
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