摘要
介绍了DMA4500型数字式密度仪测定牛羊油的密度,分析测量结果的影响因素,依据中华人民共和国国家计量技术规范JJF 1059-1999,对测量结果的不确定度进行评定和表示。其扩展不确定度U=1×10-4g/cm3,置信概率95%,满足我国现行标准要求。
The density measurement experiments of Tallow by digital density meter were described. The factors affecting the results were analyzed. The uncertainty of the results were evaluated according to the JJF1059-1999, The expanded uncertainty is 1 ×10^-4g/cm3, the confidence interval is 95 %. This results can meet the requirement of GB/T 5526-1985 and SN/ T 0801.8-1999.
出处
《现代科学仪器》
2006年第5期79-80,共2页
Modern Scientific Instruments
