The "Urban Heating Pipe Network Design Standard" is now approved as an industry standard, numbered CJJ/T34-2022, and will be implemented from August 1, 2022. The original "Design Code for Urban Heating Pipe Networks" (CJJ34-2010) was abolished at the same time. This standard is made public on the website of the Ministry of Housing and Urban-Rural Development (www.mohurd.gov.cn), and is published and distributed by China Construction Publishing and Media Co., Ltd. organized by the Standards and Quota Research Institute of the Ministry of Housing and Urban-Rural Development. Ministry of Housing and Urban-Rural Development April 29, 2022
CJJ/T 34-2022 history
2022CJJ/T 34-2022 Design standard for urban heating pipe network