摘要
采用国际通用的方法研究了过硫酸铵氧化滴定法测定不锈钢中铬量(标液法)的不确定度,分析了不确定度的主要来源,评定了不确定度分量及总不确定度。结果表明:铬量的不确定度评定,即w(Cr)=18.01%±0.11%,包含因子k=2。
The uncertainty of Cr content that determined by ammonium persulfate oxidation titrimetry in stainless steel was studied by adopting the current international method. The main sources for the uncertainty was analyzed as well as the uncertainty degree and total uncertainty were evaluated. The report of evaluation for the uncertainty of Cr content was： w（Cr） = 18.01% ± 0. 11%, embodied divisor k = 2.
出处
《湖南冶金》
2006年第3期37-41,共5页
Hunan Metallurgy
关键词
标准溶液
过硫酸铵氧化滴定法
不锈钢
铬量
不确定度
standard solution
ammonium persulfate oxidation titrimetry
stainless steel
Cr content
uncertainty
