HJ 828-2017
Water quality-Determination of the chemical oxygen demand-Dichromate method (English Version)

Standard No.

HJ 828-2017

Language

Chinese, Available in English version

Release Date

2017

Published By

Professional Standard - Environmental Protection

Latest

HJ 828-2017

Replace

GB/T 11914-1989

Scope

This standard specifies the dichromate method for the determination of chemical oxygen demand in water. This standard applies to the determination of chemical oxygen demand in surface water, domestic sewage and industrial wastewater. This standard is not applicable to the determination of chemical oxygen demand in water containing chloride concentration greater than 1000 mg/L (after dilution). When the sampling volume is 10.0 ml, the detection limit of this method is 4 mg/L, and the lower determination limit is 16 mg/L. The upper limit for determination of undiluted water samples is 700 mg/L. If this limit is exceeded, it must be measured after dilution.

HJ 828-2017 Referenced Document

• GB 11896 Water quality-Determination of chioride-Silver nitrate titration method
• GB 17378.4 The specification for marine monitoring.Part 4:Seawater analysis
• HJ 506 Water quality.Determination of dissolved oxygen.Electrochemical probe method
• HJ/T 91 Technical Specifications Requirements for Monitoring of Surface Water and Waste Water

HJ 828-2017 history

• 2017 HJ 828-2017 Water quality-Determination of the chemical oxygen demand-Dichromate method

HJ 828-2017 Water quality-Determination of the chemical oxygen demand-Dichromate method has been changed from GB/T 11914-1989 Water quality--Determination of the chemical oxygen demand--Dichromate method.