引用本文:叶敏强, 曹雷,李秋潼,张丽.《水质 化学需氧量的测定 重铬酸盐法》新旧标准比较[J].环境监控与预警,2018,10(1):26-28
YE Min qiang, CAO Lei, LI Qiu tong, ZHANG Li.Comparison of the New and Old Version Standard of Water Quality Determination of the Chemical Oxygen Demand Dichromate Method[J].Environmental Monitoring and Forewarning,2018,10(1):26-28
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《水质 化学需氧量的测定 重铬酸盐法》新旧标准比较
叶敏强, 曹雷,李秋潼,张丽
连云港市环境监测中心站,江苏 连云港 222001
摘要:
比较了《水质 化学需氧量的测定 重铬酸钾法》新标准《HJ 828—2017》与旧标准《GB/T 11914—1988》的区别。相较旧标准,新标准主要对取样体积、硫酸汞加入方法和加入量、氯离子浓度粗判、方法检出限和检出下限、质量保证与质量控制等内容进行了修订。针对新标准中校核要求、方法检出限计算及平行双样质量控制方面存在的问题进行探讨。
关键词:  水质  化学需氧量  标准  比较
DOI:
分类号:X-65
文献标识码:B
基金项目:
Comparison of the New and Old Version Standard of Water Quality Determination of the Chemical Oxygen Demand Dichromate Method
YE Minqiang, CAO Lei, LI Qiutong, ZHANG Li
Lianyungang Environmental Monitoring Center, Lianyungang, Jiangsu 222001, China
Abstract:
The new (HJ 828—2017) and old (GB/T 11914—1988) version standard of Water Quality Determination of the Chemical Oxygen Demand Dichromate Method were compared and discussed. As compared with the old version, the sample volume, the addition amount of mercury sulfate, the method of chloride ion determination, the method determination limit, quality assurance and quality control were revised. The checkout test, the calculation of method determination limit and the problems exist in quality control of parallel sample in new version standard were discussed.
Key words:  Water quality  Chemical oxygen demand  Standard  Comparison