The "Design Standards for Coal Coking Tar Processing Engineering" is now approved as a national standard, numbered GB/T51331-2018, and will be implemented from April 1, 2019. 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 organized by the Institute of Standards and Quotas of the Ministry of Housing and Urban-Rural Development. Ministry of Housing and Urban-Rural Development of the People's Republic of China November 8, 2018
GB/T 51331-2018 history
2018GB/T 51331-2018 Coal coking tar processing engineering design standard