This standard is formulated for the purposes of enforcing the Environment Protection Law of the People’s Republic of China and Water Pollution Prevention and Control Law of the People’s Republic of China, protecting the environment, safeguarding the public health, and setting standards for the determination of cyanide in waters. This standard specifies the flow injection analysis (FIA) and spectrophotometric method used to determine cyanide in surface water, groundwater, municipal wastewater, and industrial sewage. This standard is the original version.
Water quality-Determination of cyanide-Flow injection analysis (FIA) and spectrophotometric method (HJ 823-2017)