The "Technical Standards for Irrigation District Reconstruction" is now approved as a national standard, numbered GB/T50599-2020, and will be implemented from March 1, 2021. The original national standard "Technical Specifications for Irrigation District Reconstruction" (GB50599-2010) will be abolished at the same time. This standard is published on the website of the Ministry of Housing and Urban-Rural Development (www.mohurd.gov.cn), and is published by China Planning Publishing House Co., Ltd. organized by the Institute of Standards and Quotas of the Ministry of Housing and Urban-Rural Development. Ministry of Housing and Urban-Rural Development June 9, 2020
GB/T 50599-2020 Referenced Document
GB 20922 The reuse of urban recycling water.Quality of farmland irrigation water