定量包装净含量测量结果的不确定度评定

EVALUATION OF UNCERTAINTY IN NET QUANTITY OF PRODUCTS IN PREPACKAGES WITH FIXED CONTENT

依据JJF1070—2005《定量包装商品净含量计量检验规则》，以240mL盒装牛奶为例，对定量包装净含量测量结果的不确定度分量进行了分析，计算了合成标准不确定度和扩展不确定度。当盒装牛奶净含量为243．9mL时，扩展不确定度为0．4mL（k=2）

According to the method JJF 1070-2005 《Rules of Metrological Testing for Net Quantity of Products in Prepackages with Fixed Content》 , the 240mL cartons of milk was determined .The main sources of uncertainty resulted from the determination process were calculated. When milk cartons for 243.9 mL net content, the expanded uncertainty was 0.4 mL （k = 2）