Bod5 . leachate . determination of biochemical oxygen demand after 5 days . dilution and incubation method 生活垃圾渗沥水.五日生化需氧量
Cod industrial circulating cooling water determination of the chemical oxygen demand potassium permanganate method 工业循环冷却水中需氧量
It does so by slowing its heart to four beats a minute and so reducing its oxygen needs 运用减低心跳至每分钟四次和减少需氧量来做到这一点。
Municipal sewage . determination of biochemical oxygen demand after 5 days . dilution and seeding method 城市污水.五日生化需氧量的测定.稀释与接种法
Therefore , cod is a conditional indicator , and strict operation procedure must be followed 因此，化学需氧量亦是一个条件性的指标，必须严格按操作步骤进行。
High - chlorine wastewater - determination of chemical oxygen demand - potassium iodide alkaline permanganate method 高氯废水.化学需氧量的测定.碘化钾碱性高锰酸钾法
Water quality - determination of the chemical oxygen demand index st - cod - small - scale sealed tube method iso 15705 : 2002 水质.化学需氧量指数测定.小型密封管法
These three parameters are dissolved oxygen , 5 - day biochemical oxygen demand bod5 , and ammonia - nitrogen nh3 - n content 这三项参数分别是溶解氧五天生化需氧量和氨氮水平。
Water quality - physical , chemical and biochemical methods - method for the determination of the chemical oxygen demand 水质.第2部分:物理化学和生物化学方法.第34节:化学需氧量测定方法
