Abstract：Diluted standard solution is often used for calibration of chemical analysis instruments.The uncertainty of dilution solution is the main component of the uncertainty of calibration instruments,which directly affects the final evaluation results.Taking 10mg/L and 50mg/L standard solutions for infrared oil meter as examples,the uncertainty of dilution solution is evaluated by mathematical method and empirical method respectively, and the influence of the two methods on the final results is analyzed. The results show that the evaluation results of the two methods are different, but the difference is not big. When evaluating the calibration uncertainty of instruments, different methods should be selected according to different accuracy requirements.
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SUN Xi-rong,HUANG Jin-mei. Influence and Analysis of Different Methods to Evaluate Uncertainty of Standard Solution Dilution on Instrument Calibration Results. Acta Metrologica Sinica, 2021, 42(11): 1517-1521.
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2021, Vol. 42 
