一般来说，在仪器开始运行时，进行进样精密度实验，计算其相对标准偏差。

The RSD is normally performed at the beginning of the run.

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从实验结果看，测定值的相对标准偏差小于0 7%，相对不确定度小于0 5%。

Under experiment condition, RSD is less than 0.7%, reference uncertainty is less than 0.5%.

youdao

从实验结果看，测定值的相对标准偏差小于0 7%，相对不确定度小于0 5%。

Under experiment condition, RSD is less than 0.7%, reference uncertainty is less than 0.5%.

youdao