直读光谱仪碳元素检出限不确定度分析

Analysis on Uncertainty of Detection Limit of Carbon with Direct Reading Spectrometer

依据JJG1059-1999对直读光谱仪碳元素检出限的不确定度进行了评估,分析了影响测量不确定度的各个因素,计算得出直读光谱仪碳元素检出限的扩展不确定度为:U=0.11%,k=2。

Based on JJG1059-1999,the uncertainty of detection limit of carbon with direct reading spectrometer was assessed.A,the same time,the various factors which effect the uncertainty of measurement were analyzed. Then,the expanded uncertainty was obtained by calculation:u = 0.0011%,k = 2.