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| 评定连续流动法烤烟型卷烟烟丝中总氮的测量不确定度 | |
| 引用本文： | 王锴,张威,杜光尧,王颖,张洪召.评定连续流动法烤烟型卷烟烟丝中总氮的测量不确定度[J].甘肃科学学报,2012,24(4):61-65. |
| 作者姓名： | 王锴 张威 杜光尧 王颖 张洪召 |
| 作者单位： | 1. 西北烟草质量监督检测站,甘肃兰州,730030 2. 国家烟草质量监督检验中心,河南郑州,450001 3. 江苏中烟工业有限责任公司,江苏徐州,221005 |
| 基金项目： | 国家烟草专卖局标准项目 |
| 摘 要： | 为评定连续流动法烤烟型卷烟烟丝中总氮的测量不确定度,分析了测量过程,修订了连续流动法烤烟型卷烟总氮的测定因果关系图,建立了测量不确定度评定的数学模型.通过对测量不确定度评定,得出连续流动法烤烟型卷烟烟丝中总氮测量结果的标准不确定度为0.07%,在95%的置信度下,取包含因子为k=2,其扩展不确定度为0.08%. |
| 关 键 词： | 连续流动法 烤烟型卷烟 总氮 不确定度 |
Determination Uncertainty of Total Nitrogon in Tabacco of Virginian-type Cigarette by Continuous Flow Method |
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| WANG Kai , ZHANG Wei , DU Guang-yao , WANG Ying , ZHANG Hong-zhao.Determination Uncertainty of Total Nitrogon in Tabacco of Virginian-type Cigarette by Continuous Flow Method[J].Journal of Gansu Sciences,2012,24(4):61-65. | |
| Authors: | WANG Kai ZHANG Wei DU Guang-yao WANG Ying ZHANG Hong-zhao |
| Institution: | 1.North-west Tobacco Test Center,Lanzhou 730030,China; 2.China National Tobacco Quality Supervise & Test Center,Zhengzhou 450001,China; 3.Xuzhou Cigarette Factory,China Tobacco Jiangsu Industrial Co.,Ltd.,Xuzhou 221005,China) |
| Abstract: | In order to evaluate uncertainty in virginian-type cigarette total nitrogen detection（continuous flow method）,a new math stereotype was set up to describe the whole process.The model was derived from analysis of virginian-type cigarette total nitrogen measurement and modified causation figure.The water content,express value and repeatability were considered to be the main source of uncertainty in virginian-type cigarette total nitrogen detection from this model.The standard uncertainty was 0.07%,the extend uncertainty（α=0.05,k=2） was 0.08%. |
| Keywords: | continuous flow method virginian-type cigarette total nitrogen uncertainty |
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