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文章介绍了标定硫代硫酸钠标准溶液的不确定度评定,按不确定度的来源因素对测量不确定度的贡献作了分析,给出硫代硫酸钠标准溶液浓度扩展不确定度为U=0.000 2 mol/L。
This paper introduces the evaluation of the standardization of sodium thiosulfate standard uncertainty, according to the contribution of the source of uncertainty to the measurement uncertainty is analyzed, given the sodium thiosulfate standard solution concentration Uncertainty U = 0.000 2 mol / L.