Standard No.:	HJ/T 399-2007
English Name:	Water quality-Determination of the chemical oxygen demand-Fast digestion-Spectrophotometric method
Chinese Name:	水质 化学需氧量的测定 快速消解分光光度法
Chinese Classification:	Z23    Analysis methods for industrial wastewater and pollutants
Professional Classification:	HJ    Professional Standard - Environment
ICS Classification:	13.060.01 13.060.01    Water quality in general 13.060.01
Source Content Issued by:	ZHB
Issued on:	2007-12-7
Implemented on:	2008-3-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	6000 words
Translation Price(USD):	180.0
Delivery:	via email in 1~3 business day

本标准适用于地表水、地下水、生活污水和工业废水中化学需氧量（COD）的测定。
本标准对未经稀释的水样，其COD 测定下限为15 mg/L，测定上限为1000mg/L，其氯离子浓度不应大于1000mg/L。
本标准对于化学需氧量（COD）大于1000mg/L 或氯离子含量大于1000mg/L 的水样，可经适当稀释后进行测定。