The "Municipal Pipeline Television Detector" is now approved as the urban construction industry product standard, numbered CJ/T519-2018, and will be implemented from April 1, 2019. 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 the China Standards Press organized by the Standards Quota Research Institute of the Ministry of Housing and Urban-Rural Development. Ministry of Housing and Urban-Rural Development of the People's Republic of China November 7, 2018
CJ/T 51-2018 history
2018CJ/T 51-2018 Standard test method for urban sewage water quality
2004CJ/T 51-2004 Methods for the examination of municipal sewage
1970CJ/T 74-1999 Determination of Chloride in Municipal Sewage by Silver Method