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 mesotrione in water. This standard specifies the high performance liquid chromatography used to determine mesotrione in water. This standard is the original version.

 Water quality-Determination of mesotrione-High performance liquid chromatography (HJ 850-2017)