摘要
采用GB/T 15456—2008,对水中化学需氧量测定不确定度进行评定。分析了不确定度的主要来源,包括质量,标准滴定溶液所消耗的体积,取样体积,摩尔质量及重复性引起的不确定度,并评估了测量结果的合成标准不确定度和扩展不确定度。
The uncertainty of determination of chemical oxygen demand in water was evaluated by GB/T 2008-15456.Analysis of the main sources of uncertainty, including quality, consumption of standard titration solution volume, sampling volume, cause the molar mass and repetition of the uncertainty, and to evaluate the combined standard uncertainty and expanded uncertainty.
出处
《化工设计通讯》
CAS
2016年第6期157-157,160,共2页
Chemical Engineering Design Communications
