沼液中五日生化需氧量测量的不确定度计算  

Evaluation of the Determination uncertainty of Biochemical Oxygen Demand for Biogas Slurry

作　　者：张冀川[1,2] 冉毅[1,2] 席江[1,2] 陈子爱[1,2] 丁自立[1,2] 李晋梅[1,2] 贺莉[1,2] ZHANG Ji- chuan RAN Yi XI Jiang CHEN Zi-ai DING Zi-li LI Jin-mei HE Li(Biogas Institute of Ministry of Agriculture, Chengdu 610041, China The Quality Inspection Center of Biogas Appliance of Ministry of Agriculture （ BIQIC-MOA）, Chengdu 610041, China)

机构地区：[1]农业部沼气科学研究所,成都610041 [2]农业部沼气产品及设备质量监督检验中心,成都610041

出　　处：《中国沼气》2017年第4期71-72,共2页China Biogas

摘　　要：五日生化需氧量值是沼液特征的一项重要指标,根据HJ505-2009《水质五日生化需氧量(BOD5)测定稀释与接种法》对沼液进行测定,通过对不确定度的分析和评定,找出实验的主要影响因素,为进一步提高实验精确度和精密度提供了依据。测试结果表明,合成不确定度为0.58%,扩展不确定度为1.16%。Biochemical Oxygen Demand is one of the most important parameter of biogas slurry. For the purpose of reducing experiment error and improving precision, experiment uncertainty were analyzed and evaluated in this paper. The results showed that combined uncertainty was 0.58% and expanded uncertainty was 1.16% .

关 键 词：五日生化需氧量 不确定度 

分 类 号：S216.4[农业科学—农业机械化工程]