氢氧化钠标准溶液浓度的不确定度评估  

The Evaluation of Uncertainty of Sodium Hydroxide

作　　者：付丹[1] 

机构地区：[1]辽宁石化职业技术学院,辽宁锦州121001

出　　处：《四川化工》2015年第6期38-40,共3页Sichuan Chemical Industry

摘　　要：研究了氢氧化钠标准溶液浓度标定过程中的不确定因素。通过数学模型,对各个不确定分量进行评估。结果表明,氢氧化钠标准溶液浓度的相对扩展不确定度为3.24×10^(-4)。标定及重复测定引入的不确定度最大。The uncertain factors in the calibration process of concentration of sodium hydroxide standard solution was studied in this paper.The mathematical model was used to evaluate of the uncertainty components.The results showed that the relative expanded uncertainty of the standard solution concentration of sodium hydroxide is 3.24 10^（-4）.The uncertainty of calibration and repeated measurement were the largest.

关 键 词：氢氧化钠 标准溶液 不确定度 

分 类 号：TQ421.31[化学工程] TQ131.12