乳粉中非蛋白氮含量测定的不确定度评价

Determination of Uncertainty of Non-Protein Nitrogen in Powder

通过对乳粉中的非蛋白氮含量进行重复性测试,计算试验标准偏差,建立过程不确定度评价的数学模型,将测试过程中系统效应产生的不确定度进行了分类和量化,较为全面地评价了各个不确定度的分量,并提出该方法的不确定度评定结果。

By repeating test for the non-protein nitrogen＇s content of milk powder, calculating the test standard error, founding mathematical model of comment for process uncertainty, and then classifying and quantizing the uncertainty from systematical affection in the process of the test, it will more thoroughly evaluate each quantity of uncertainty, so coming up with a result.